深圳市鑫雄峰特殊钢有限公司

主营:模具钢

深圳市鑫雄峰 特殊钢45

¥2.5元/千克 中国 广东 深圳 宝安区

产品属性

品牌/厂家:
其他
形状:
其他
加工工艺:
其他
牌号:
45
产地:
宝钢

<*n class="16" style="background:#FFFFFF;font-family:"";">45<*n>钢<*n style="color:#333333;font-family:宋体;font-size:21pt;font-weight:bold;">

<*n class="15" style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:12pt;">45#<*n class="15" style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:12pt;">一般指45钢 <*n style="color:#000000;font-family:宋体;font-size:9pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>钢是<*n>GB<*n>中的叫法,也叫<*n>“<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">油钢<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">”<*n>。市场现货<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">热轧<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">居多;<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">冷轧<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">规格<*n>1.0~4.0<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">mm<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">之间。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">中文名<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">45<*n>号钢 <*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">JIS<*n>名称<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">S45C <*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">ASTM<*n>名称<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">1045 <*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">别<*n>    <*n>称<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">油钢 <*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">冷轧规格<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">1.0~4.0mm <*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">碳含量<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Calibri;font-size:10.5pt;">0.42~0.50% <*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:15.5pt;font-weight:bold;">45钢特性<*n style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">常用中碳调质结构钢。该钢冷塑性一般,退火、正火比调质时要稍好,具有较高的强度和较好的切削加工性,经适当的热处理以后可获得一定的韧性、塑性和*性,材料来源方便。适合于<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">氢焊<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">和<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">*弧焊<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">,不太适合于气焊。焊前需预热,焊后应进行去应力退火。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n><*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">正火可****硬度小于<*n>160<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">HBS<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">毛坯的切削性能。该钢经调质处理后,其综合力学性能要优化于其他中碳结构钢,但该钢<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">淬透性<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">较低,水中临界淬透直径为<*n>12~17mm<*n>,水淬时有开裂倾向。当直径大于<*n>80mm<*n>时,经调质或正火后,其力学性能相近,对中、小型模具零件进行调质处理后可获得较高的强度和韧性,而大型零件,则以正火处理为宜,所以,此钢通常在调质或正火状态下使用。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">液相线温度<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">1495℃<*n>左右,碳含量<*n>0.42~0.50%<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">参考对应钢号:中国<*n>GB<*n>标准钢号<*n>45<*n>;日本<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">JIS<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">标准钢号<*n>S45C/S48C<*n>;德国<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">DIN<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">标准材料钢号<*n>1.0503<*n>;德国<*n>DIN<*n>标准钢号<*n>****5<*n>;英国<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">BS<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">标准钢号<*n>I****5/080A47<*n>;法国<*n>AFNOR<*n>标准钢号<*n>C****5<*n>;法国<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">NF<*n>标准<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">钢号<*n>****5<*n>;意大利<*n>UNI<*n>标准钢号<*n>****5<*n>;<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">比利时<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">NBN<*n>标准钢号<*n>****5-1<*n>;<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">瑞典<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">SS<*n>标准钢号<*n>1650<*n>;西班牙标准钢号<*n>F.114<*n>;美国<*n>AISI/SAE<*n>标准钢号<*n>1045<*n>;<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">*化*<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">ISO<*n>标准钢号<*n>****5E4<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">力学性能<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">正火:<*n>850 <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">淬火:<*n>840 <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">回火:<*n>600 <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">*拉强度:不小于<*n>600Mpa <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">屈服强度:不小于<*n>355Mpa <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">伸长率:<*n>16%  ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">收缩率:<*n>40% <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">冲击功:<*n>39J <*n> ;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">钢材交货状态硬度:<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">热轧钢:<*n>≤229HB<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">退火钢:<*n>≤197HB<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:15.5pt;font-weight:bold;">45钢成分<*n style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">主要成分为 <*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">Fe<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">铁元素<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">),且含有以下少量元素:<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">C<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">:<*n>0.42~0.50%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">Si<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">:<*n>0.17~0.37%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">Mn<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">:<*n>0.50~0.80%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">P<*n>: <*n>≤0.035%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">S<*n>: <*n>≤0.035%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">Cr<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">:<*n>≤0.25%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">Ni<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">:<*n>≤0.25%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">Cu<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">:<*n>≤0.25%<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">密度<*n>7.85g/cm3<*n>,<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">弹性模量<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">210GPa<*n>,<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">泊松比<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">0.269<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:15.5pt;font-weight:bold;">45钢处理方法<*n style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">热处理<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">推荐<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">热处理<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">温度:<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">正火<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">850<*n>,<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">淬火<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">840<*n>,<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">回火<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">600<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">1. 45<*n>号钢淬火后没有回火之前,硬度大于<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">HRC<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">55<*n>(****可达<*n>HRC62)<*n>为合格。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">实际应用的****硬度为<*n>HRC55<*n>(<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">高频淬火<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">HRC58)<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">2.45<*n>号钢不要采用渗碳淬火的热处理工艺。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">渗碳处理<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">一般用于表面<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">*<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">、芯部耐冲击的重载零件,其*性比调质<*n>+<*n>表面淬火高。其表面含碳量<*n>0.8<*n>--<*n>1.2%<*n>,芯部一般在<*n>0.1<*n>--<*n>0.25%<*n>(特殊情况下采用<*n>0.35%<*n>)。经热处理后,表面可以获得很高的硬度<*n>(HRC58<*n>--<*n>62)<*n>,芯部硬度低,耐冲击。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">如果用<*n>45<*n>号钢渗碳,淬火后芯部会出现硬脆的马氏体,失去渗碳处理的优点。采用渗碳工艺的材料,含碳量都不高,到<*n>0.30%<*n>芯部强度已经可以达到很高,应用上不多见。<*n>0.35%<*n>从来没见过实例,只在教科书里有介绍。可以采用调质<*n>+<*n>高频表面淬火的工艺,*性较渗碳略差。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">加工处理规范<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">冷压<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">毛胚<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">软化处理规范:温度<*n>740~760℃<*n>,保温时间<*n>4~6h<*n>,以<*n>50~100℃/h<*n>的冷速,随炉降至温度<*n>≤600℃<*n>,出炉空冷,处理前硬度<*n>≤197HBS<*n>,处理后硬度<*n>≤156HBS<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">正火规范:正火温度<*n>850-870℃<*n>,正火后硬度<*n>170-217HBS<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">调质处理规范:<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">淬火温度<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">840±10℃<*n>,<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">水冷淬火<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">;回火温度<*n>600±10℃<*n>,出炉空冷。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">执行标准中<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">GB/T699-1999<*n>标准规定的<*n>45<*n>钢推荐热处理温度为<*n>850℃<*n>正火、<*n>840℃<*n>淬火、<*n>600℃<*n>回火,达到的性能为屈服强度<*n>≥355MPa<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">GB/T699-1999<*n>标准规定<*n>45<*n>钢*拉强度<*n>≥600MPa<*n>,屈服强度<*n>≥355MPa<*n>,伸长率<*n>≥16%<*n>,断面收缩率<*n>≥40%<*n>,冲击功为<*n>39J<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:15.5pt;font-weight:bold;">45钢处理要求<*n style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>钢调质硬度在<*n>HRC20~HRC30<*n>之间;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>钢淬火硬度在<*n>HRC55~58<*n>之间<*n>,<*n>****限值可达<*n>HRC62<*n>;<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>钢要放置<*n>15-20<*n>天才能使用<*n>,<*n>是因为要进行时效处理<*n>,<*n>使钢的性能稳定下来,<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">实际应用的****硬度为<*n>HRC55<*n>(高频淬火<*n>HRC58<*n>)。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>钢为****碳素结构用钢,硬度不高易切削加工,模具中常用来做模板,梢子,导柱等,但须热处理 。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">1. 45<*n>钢淬火后没有回火之前,硬度大于<*n>HRC55<*n>(****可达<*n>HRC62<*n>)为合格。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">实际应用的****硬度为<*n>HRC55<*n>(高频淬火<*n>HRC58<*n>)。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">2. 45<*n>钢不要采用渗碳淬火的热处理工艺。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">调质处理后零件具有良好的综合机械性能,广泛应用于各种重要的结构零件,特别是那些在交变负荷下工作的<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">连杆<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">、<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">螺栓<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">、<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">齿轮<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">及轴类等。但表面硬度较低,不*。可用调质<*n>+<*n>表面淬火****零件表面硬度。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:15.5pt;font-weight:bold;">45钢现货规格<*n style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">品名<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">规格/mm<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">材质<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">品名<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">规格/mm<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">材质<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">光亮圆棒<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">3.0-25<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">4-10<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">12-50<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">
<*n style="color:#000000;font-family:宋体;font-size:9pt;"> <*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">8-10<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф100-130<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">
<*n style="color:#000000;font-family:宋体;font-size:9pt;"> <*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">12-16<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф140-150<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">18-20<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф160-170<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">22-28<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф16-40<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">30-34<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф16-45<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">
<*n style="color:#000000;font-family:宋体;font-size:9pt;"> <*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">35-75<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф180-200<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">
<*n style="color:#000000;font-family:宋体;font-size:9pt;"> <*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">75-80<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф200-280<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">锻打钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">80-100<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">290-500<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">锻打钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">100-150<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">500-1500<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">锻打钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">150<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф50-70<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">锻打钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">160<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф50-90<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">锻打钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">170<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">热轧圆钢<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">Ф50-95<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">锻打钢板<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;">180<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="color:#000000;font-family:宋体;font-size:9pt;font-style:italic;font-weight:bold;">45#<*n style="color:#000000;font-family:Calibri;font-size:9pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:宋体;font-size:15.5pt;font-weight:bold;">45钢用途<*n style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">轴类零件特点<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">轴类零件是机器中经常遇到的典型零件之一。它主要用来支承传动零<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">部件,传递扭矩和承受载荷。轴类零件是旋转体零件,其长度大于直径,一般由同心轴的外圆柱面、圆锥面、内孔和螺纹及相应的端面所组成。根据结构形状的不同,轴类零件可分为光轴、阶梯轴、空心轴和曲轴等。<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">轴的长径比小于<*n>5<*n>的称为短轴,大于<*n>20<*n>的称为细长轴,大多数轴介于两者之间。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">轴用轴承支承,与轴承配合的轴段称为轴颈。轴颈是轴的装配基准,它们的精度和表面质量一般要求较高,其技术要求一般根据轴的主要功用和工作条件制定,通常有以下几项:<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(一)尺寸精度 起支承作用的轴颈为了确定轴的位置,通常对其尺寸精度要求较高<*n>(IT5<*n>~<*n>IT7)<*n>。装配传动件的轴颈尺寸精度一般要求较低<*n>(IT6<*n>~<*n>IT9)<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(二)几何形状精度 轴类零件的几何形状精度主要是指轴颈、外锥面、莫氏锥孔等的圆度、圆柱度等,一般应将其公差限制在尺寸公差范围内。对精度要求较高的内外圆表面,应在图纸上标注其允许偏差。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(三)相互位置精度 轴类零件的位置精度要求主要是由轴在机械中的位置和功用决定的。通常应保证装配传动件的轴颈对支承轴颈的同轴度要求,否则会影响传动件(齿轮等)的传动精度,并产生噪声。普通精度的轴,其配合轴段对支承轴颈的径向跳动一般为<*n>0.01<*n>~<*n>0.03mm,<*n>*轴(如主轴)通常为<*n>0.001<*n>~<*n>0.005mm<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(四)表面粗糙度 一般与传动件相配合的轴径表面粗糙度为<*n>Ra2.5<*n>~<*n>0.63μm,<*n>与轴承相配合的支承轴径的表面粗糙度为<*n>Ra0.63<*n>~<*n>0.16μm<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">毛坯和材料<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(一)轴类零件的毛坯 轴类零件可根据使用要求、生产类型、设备条件及结构,选用棒料、锻件等毛坯形式。对于外圆直径相差不大的轴,一般以棒料为主;而对于外圆直径相差大的阶梯轴或重要的轴,常选用锻件,这样既节约材料又减少机械加工的工作量,还可****机械性能。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">根据生产规模的不同,毛坯的锻造方式有自由锻和模锻两种。中小批生产多采用自由锻,大批大量生产时采用模锻。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">(二)轴类零件的材料 轴类零件应根据不同的工作条件和使用要求选用不同的材料并采用不同的热处理规范(如调质、正火、淬火等),以获得一定的强度、韧性和*性。<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>钢是轴类零件的常用材料,它价格便宜经过调质(或正火)后,可得到较好的切削性能,而且能获得较高的强度和韧性等综合机械性能,淬火后表面硬度可达<*n>45<*n>~<*n>52HRC<*n>。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">40Cr<*n>等合金结构钢适用于中等精度而转速较高的轴类零件,这类钢经调质和淬火后,具有较好的综合机械性能。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">轴承钢<*n>GCr15<*n>和弹簧钢<*n>65Mn,<*n>经调质和表面高频淬火后,表面硬度可达<*n>50<*n>~<*n>58HRC,<*n>并具有较高的耐疲劳性能和较好的*性能,可制造较*的轴。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">精密机床的主轴(例如磨床砂轮轴、坐标镗床主轴)可选用<*n>38CrMoAIA<*n>氮化钢。这种钢经调质和表面氮化后,不仅能获得很高的表面硬度,而且能保持较软的芯部,因此耐冲击韧性好。与渗碳淬火钢比较,它有热处理变形很小,硬度更高的特性。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>号钢广泛用于机械制造,这种钢的机械性能很好。但是这是一种中碳钢,淬火性能并不好, <*n>45<*n>号钢可以淬硬至<*n>HR****2~46<*n>。所以如果需要表面硬度,又希望发挥<*n>45#<*n>钢优越的机械性能,常将<*n>45#<*n>钢表面淬火(高频淬火或者直接淬火),这样就能得到需要的表面硬度。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">注:直径为<*n>8―12mm<*n>的<*n>45<*n>号钢淬火时容易产生裂纹,这是一个较为复杂的问题。采取的措施是淬火时试样在水中快速搅动,或者采用油冷,可避免出现裂纹。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;">在模具修补领域<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">45<*n>号钢所针对的模具焊材型号为:<*n>CMC-E45<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">它是****接合性较好之中硬度钢焊条,适用于空*、铸钢:如<*n>ICD5<*n>、<*n>7CrSiMnMoV…<*n>等等。汽车板金覆盖件模具及大型五金板金冲压模具之拉延、拉伸部位修补,也可用于硬面制作。<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">另外在使用时也有一些需要注意的:<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">1. <*n>于潮湿场地施工前,焊条先以<*n>150-200°C<*n>烘干<*n>30-50<*n>分钟。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">2. <*n>通常施以<*n>200°C<*n>以上预热,焊接后空冷,可能的话****实施应力消除。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">3. <*n>需多层堆焊处,以<*n>CMC-E30N<*n>打底,可得到较好的焊接效果。<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">硬度 <*n>HRC 48-52<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">主要成份 <*n>Cr Si Mn C<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">适用电流范围:<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">直径及长度<*n>m/m 3.2*350mm 4.0*350mm<*n style="color:#000000;font-family:Arial;font-size:10.5pt;">

<*n style="background:#FFFFFF;color:#000000;font-family:Arial;font-size:10.5pt;">电流范围<*n>(Amp) 70-100 130-150<*n style="color:#000000;font-family:Calibri;font-size:10.5pt;">

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