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预防山东beplay全站app安卓的热处理变形的办法!

来源:http://www.jnhjgs.cn     发布时间:2021-03-19 14:24:09    点击:

在热处理过程中,山东beplay全站app安卓常常会产生变形,为了预防这种不好的现象,只要把握其变形规律,分析其产生的原因,采用不同的方法进行预防beplay全站app安卓的变形是能够减少的,也是能够控制的。一般来说,对精密复杂beplay全站app安卓的热处理变形可采取以下方法预防。
In the process of heat treatment, Shandong mold often produces deformation. In order to prevent this bad phenomenon, as long as we grasp its deformation law, analyze its causes, and adopt different methods to prevent mold deformation, it can be reduced and controlled. Generally speaking, the following methods can be used to prevent the heat treatment deformation of the precision complex mold.
(1)公道选材。对精密复杂beplay全站app安卓应选择材质好的微变形beplay全站app安卓钢(如空淬钢),对碳化物偏析严峻的beplay全站app安卓钢应进行公道铸造并进行,对较大和无法铸造beplay全站app安卓钢可进行固溶双细化热处理。
(1) Fair selection. For the precision complex die, the micro deformation die steel with good material (such as air quenched steel) should be selected. For the die steel with severe carbide segregation, the reasonable casting should be carried out. For the larger and non casting die steel, the solid solution double refinement heat treatment can be carried out.
(2)beplay全站app安卓结构设计要公道,厚薄不要太悬殊,外形要对称,对于变形较大beplay全站app安卓要把握变形规律,预留加工余量,对于大型、精密复杂beplay全站app安卓可采用组合结构。
(2) The mold structure design should be fair, the thickness should not be too wide, the shape should be symmetrical, for the large deformation mold, the deformation law should be grasped, and the machining allowance should be reserved. For the large, precise and complex mold, the combined structure can be used.
(3)精密复杂beplay全站app安卓要进行预先热处理,消除机械加工过程中产生的残余应力。
(3) In order to eliminate the residual stress in the process of machining, heat treatment should be carried out in advance for the precision complex die.
                              济南beplay全站app安卓
(4)公道选择加热温度,控制加热速度,对于精密复杂beplay全站app安卓可采取缓慢加热、预热和其他均衡加热的方法来减少beplay全站app安卓热处理变形。
(4) Reasonable selection of heating temperature, control of heating speed, for precision complex mold can take slow heating, preheating and other balanced heating method to reduce the mold heat treatment deformation.
(5)在保证beplay全站app安卓硬度的条件下,尽量采用预冷、分级冷却淬火或温淬火工艺。
(5) Under the condition of ensuring the hardness of the die, pre cooling, step cooling quenching or warm quenching process should be adopted as far as possible.
(6)对精密复杂beplay全站app安卓,在前提许可的情况下,尽量采用真空加热淬火和淬火后的深冷处理。
(6) As far as possible, vacuum heating quenching and cryogenic treatment after quenching should be used for precision and complex molds.
(7)对一些精密复杂的beplay全站app安卓可采用预先热处理、时效热处理、调质氮化热处理来控制beplay全站app安卓的精度。
(7) For some precise and complicated dies, pre heat treatment, aging heat treatment and quenching and tempering nitriding heat treatment can be used to control the accuracy of the dies.
(8)在修补beplay全站app安卓砂眼、气孔、磨损等缺陷时,选用冷焊机等热影响小的修复设备以避免修补过程中变形的产生。
(8) When repairing mold defects such as sand hole, air hole and wear, cold welding machine and other repair equipment with small heat effect should be selected to avoid deformation in the repair process.
热处理工艺操作有许多方法,具体包括如堵孔、绑孔、机械固定、相宜的加热方法、准确选择beplay全站app安卓的冷却方向和在冷却介质中的运动方向等,公道的回火热处理工艺也是减少精密复杂beplay全站app安卓变形的有效措施。
There are many methods of heat treatment process operation, including plugging, binding, mechanical fixation, appropriate heating method, accurate selection of cooling direction and movement direction in the cooling medium of the mold, etc. reasonable tempering heat treatment process is also an effective measure to reduce the deformation of precision complex mold.
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山东济南beplay全站app安卓_铝合金压铸厂-山东宏捷beplay全站app安卓有限公司 手机: 13173017488 咨询热线: 0531-88771136 咨询热线:18615459955    邮箱:hlm369@126.com

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