<*n style="font-size:16px">65Nb新型模具钢/65Nb冷热兼用模具钢/65Nb新型模具钢/65Nb冷热兼用模具钢*n>
<*n style="font-size:16px">65Nb新型模具钢必须具有:
(1)较高的高温强度;
(2)高的*性和一定的高温硬度;
(3)优良的耐热*性和kang氧化性能;
(4)适当的冲击韧性;
(5)较好的淬透性和热导性。
在正常生产条件下,模具材料在工作温度下的*位强度应该达到锻造温度下锻件材料流变应力的3倍~5倍,模具寿命才具有生产应用的价值。*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="color:#000000">65Nb新型模具钢*n>*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">简介:*n>*n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>1)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">模具钢的特性*n>*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"> 6Cr4W3Mo2VNb简称65Nb。高韧性冷作模具钢,其化学成分近高速工具钢的基本成分,属于一种基体钢。因此,它具有高速工具钢的高硬度和高强度。又因该钢没有过剩的碳化物,所以,具有较高的韧性和**强度。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">锻造性能良好,锻造时要缓慢加热,保证透烧,始锻温度不宜太高,终锻温度不宜过低,锻后应回火,缓冷(砂冷或炉冷)或及时退火。钢的kang氧化性良好,属于高合金钢,导热性差,与高速钢、高铬工具钢相比,变形*力低,高温韧性好。*n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">经*n>1080~1180℃加热保温后,油冷淬火,530~580℃回火,65Nb钢的*弯强度比高速钢高出30%~40%,冲击韧性值高3~4倍。该钢淬硬深度为空淬≤50mm,油淬≤80mm。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">该钢的*终热处理一般是淬火和低温回火(少数采用中温回火或高温回火),热处理后的硬度通常在*n>45~50HRC以上。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">供货品种:热轧材、锻材。根据需方要求可供应部分扁钢或其他条钢。*n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>2)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">标准*n>GB/T 1299—2000钢的化学成分*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(质量分数,*n>%) C 0.60~0.70、Si≤0.40、Mn≤0.40、Cr 3.80~4.40、Mo 2.50~3.50、W 1.80~2.50、V 0.80~1.20、Nb 0.20~0.35、P≤0.030、S≤0.030。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>3)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">临界点温度*n>*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(近似值)*n> A*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体">c1*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体">=810~830℃,A*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体">r1*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体">=740~760℃。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>4)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">热加工规范*n>*n>*n> *n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">①钢锭:加热温度1140~1180℃,始锻温度1100~1150℃,终锻温度≥900℃,缓冷(砂冷或*冷)。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">②钢坯:加热温度1120~1150℃,始锻温度1080~1120℃,终锻温度900~850℃,缓冷(砂冷或*冷)。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>5)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">等温退火规范*n>*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"> <*n style="font-family:宋体">加热温度*n>860℃&plu*n;10℃,时间3~4h,炉冷至740℃,保温6h,再以≤30℃/h的冷速,缓慢炉冷至≤550℃,出炉空冷,硬度≤269HBS。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>6)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">淬火、回火规范*n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">①温度1150℃&plu*n;10℃,12~15*m加热保温后,油冷淬火。di一次回火温度540℃&plu*n;10℃,保温时间1.5h,空冷;第二次回火温度540℃&plu*n;10℃,保温时间1.5h,硬度58~62HRC。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">②温度1080~1180℃,油冷淬火,回火温度520~580℃,保温时间1~2h,硬度60~63HRC,后续可进行软氮化和离子氮化等工序。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>7)*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">气体渗氮和气体氮碳共渗规范*n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">①技术要求:硬度>900HV,深度0.03~0.05mm,渗氮温度540℃,气体比例为氨气30%,载气体(RX气)70%,氨分解率30%~40%,保温时间3h,应用于冷挤模、冲载模、冷镦模。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">②技术要求:硬度>1000HV,深度0.05~0.07mm,渗氮温度540℃,气体比例为氨气40%,载气体(RX气)50%,氨分解率30%~40%,保温时间5h,应用于拉伸模、弯曲模。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">(*n>8)6Cr4W3Mo2VNb*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">典型应用举例*n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">①用于制造冷挤压模具、螺钉冲头、冷冲模、拉延模和搓丝板等。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">②用于制造冲击载荷及形状复杂的冷作模具,如冷镦模具、螺钉冲头等。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">③可用于钢件的冷挤压凸模,选用硬度62~64HRC。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">④用于制作大型复杂、受冲击载荷大的模具,效果很好。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">⑤该钢用于冷挤、温挤、冷冲、冷镦、冷剪等冷作模具用钢,使用寿命比原来使用的高速钢、高碳工具钢成倍增加。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">⑥适用于制作大、中型冷镦模、精压模。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体">⑦该钢复合冲模经1140℃油淬、540℃二次回火后与原采用的T10钢复合冲模相比,使用寿命ti高了60倍,同时经辉光离子氮化和渗硼处理可进一步ti高其使用寿命。*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="font-family:宋体">具体详情请点击*n>:*n>*n>http://www.tiedao-mold*/products/detail/791.html*n>*n>
<*n style="font-size:20px"><*n style="font-family:"Times New Roman""><*n style="font-family:宋体"><*n style="font-family:宋体"><*n style="background-color:#ffff66">欢迎来电咨询*n>*n><*n style="background-color:#ffff66"> *n><*n style="font-family:宋体"><*n style="background-color:#ffff66">电*n>*n><*n style="background-color:#ffff66"> *n><*n style="font-family:宋体"><*n style="background-color:#ffff66">话:*n>*n><*n style="background-color:#ffff66"> 021-57628999,手机:18939813148,*:943586028*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">本信息源自:上海铁岛实业有限公司*n> *n>*n>*n>*n>*n>
<*n style="font-size:10.5pt"><*n style="font-family:"Times New Roman""><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="color:#000000"><*n style="font-family:宋体">产品编号*n>:TD20200115*n>*n>*n><*n style="font-size:12.0000pt"><*n style="font-family:宋体"><*n style="color:#000000">BAOJIHUA*n>*n>*n>*n>*n>