<p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> <span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">Cr12模具钢为典型的合金工具钢，是应用广泛的冷作模具钢，具有高强度、较好的淬透性和良好的耐磨性，但冲击韧性差。</span></p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> &nbsp;</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 是应用广泛的冷作模具钢，具有高强度、较好的淬透性和良好的耐磨性，但冲击韧性差。主要用作承受冲击负荷较小，要求高耐磨的冷冲模及冲头、冷切剪刀、钻套、量规、拉丝模、压印模、搓丝板、拉延模和螺纹滚模等。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> Cr12属于高碳高铬莱氏体钢,也是应用广泛的冷作模具钢.该钢具有较好的淬透性、耐磨性、热加工性.碳化物在钢中分布较好,可用于制造形状复杂、工作条件繁重下的各种冷作模具.如冷冲模冲头、螺纹滚模、拉丝模、料模、冶金粉模、木工切削工具、冷切剪刀钻套及量规等工具.我们在研制中,经过反复探索和试验,制订了合理的冶炼工艺和特殊的锭模及锻造工艺,使材质组织达到均匀一致,另外对标准物质加工,大胆创新,采用双刀切屑新工艺,极大提高了功效,缩短了周期,降低了成本。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 1.厚度不大于2MM薄板材，高效落料模，冲载模及压印模。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 2. 各种剪刀，镶嵌刀片，木工刀片。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 3. 螺纹轧制模和耐磨滑块。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 4. 冷镦模具，热固树脂成型模。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 5.伸拉成型模，冷挤压模具。</p> <div style="margin: -7px 0px 0px; padding: 0px; outline: 0px; font-size: 14px; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 碳 C ：2.00～2.30</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 硅 Si：&le;0.40</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 锰 Mn：&le;0.40</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 硫 S ：&le;0.030</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 磷 P ：&le;0.030</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 铬 Cr：11.50～13.00</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 镍 Ni：允许残余含量&le;0.25</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 铜 Cu：允许残余含量&le;0.30</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 钴 Co：&le;1.00</p> </div> <h3 style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; width: 942px; height: 31px; background-image: url(http://www.zcwz.com/gonghuo/images/bg3.gif); line-height: 31px; color: rgb(57, 57, 57); font-weight: 500; font-family: arial, sans-serif; background-repeat: repeat no-repeat;"> <span style="margin: 0px 0px 0px 10px; padding: 0px; outline: 0px; font-size: 18px; font-family: 'microsoft yahei', Arial, Helvetica, sans-serif;">力学性能：</span>折叠</h3> <div style="margin: -7px 0px 0px; padding: 0px; outline: 0px; font-size: 14px; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 硬度 ：退火,269～217HB,压痕直径3.7～4.1mm;淬火,&ge;58HRC</p> </div> <h3 style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; width: 942px; height: 31px; background-image: url(http://www.zcwz.com/gonghuo/images/bg3.gif); line-height: 31px; color: rgb(57, 57, 57); font-weight: 500; font-family: arial, sans-serif; background-repeat: repeat no-repeat;"> <span style="margin: 0px 0px 0px 10px; padding: 0px; outline: 0px; font-size: 18px; font-family: 'microsoft yahei', Arial, Helvetica, sans-serif;">热处理规范：</span>折叠</h3> <div style="margin: -7px 0px 0px; padding: 0px; outline: 0px; font-size: 14px; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 热处理规范：1)淬火,950～1000℃油冷;2)淬火980℃,油冷,180℃回火2h。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 金相组织：回火马氏体+未溶碳化物+残余奥氏体。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> ● 交货状态：钢材以退火状态交货。</p> </div> <h3 style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; width: 942px; height: 31px; background-image: url(http://www.zcwz.com/gonghuo/images/bg3.gif); line-height: 31px; color: rgb(57, 57, 57); font-weight: 500; font-family: arial, sans-serif; background-repeat: repeat no-repeat;"> <span style="margin: 0px 0px 0px 10px; padding: 0px; outline: 0px; font-size: 18px; font-family: 'microsoft yahei', Arial, Helvetica, sans-serif;">Cr12淬火温度</span>折叠</h3> <div style="margin: -7px 0px 0px; padding: 0px; outline: 0px; font-size: 14px; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> Cr12淬火950～1000℃油淬，二次回火550℃</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 高温淬火1100-1150℃，低温淬火960-1050℃，回火550-650℃，前者有二次硬化现象，回火不少于2次，每次2h,回火后可空冷或油冷，高温淬火前最好进行2次预热，在高温加热时，需采取保护措施，以防氧化。</p> </div> <p> &nbsp;</p>