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模具的热加工质量对模具的性能

来源:http://www.sdlqmj.com 日期:2018-11-29 发布人:admin 浏览次数:
模具的热加工质量对模具的性能
Effect of Hot Machining Quality of Die on Die Performance
模具的热加工质量对模具的性能与运用寿数影响甚大。在实际生活作业中咱们模具车间对各种模具的设计及出产都要求精雕细镂,而具体操作还会出现问题,哪咱们跟着深圳模具厂家一起来评论交流一下冲压模具运用中的问题
The hot working quality of the die has a great influence on the performance and service life of the die. In actual life, our mould workshop requires exquisite carving for the design and production of various moulds, and there will be problems in the specific operation. Let's follow the Shenzhen mould factory to comment and exchange the problems in the application of stamping dies.
模具作业零件的淬火变形与开裂,运用过程的前期断裂,均与摸具的热加工工艺有关。
The quenching deformation and cracking of the die parts and the early fracture in the application process are all related to the hot working process of the die.
1.铸造工艺,这是模具作业零件制作过程中的重要环节。关于高合金工具钢的模具,通常对资料碳化物散布等金相安排提出技能要求。此外,还应严格控制铸造温度规模,制定正确的加热标准,选用正确的铸造力法,以及锻后缓冷或及时退火等。
1. Casting technology, which is an important part of the production process of die parts. For high alloy tool steels, the metallographic arrangement such as data carbide dispersion is usually required. In addition, the casting temperature scale should be strictly controlled, the correct heating standard should be formulated, the correct casting force method should be selected, and the slow cooling or timely annealing after forging should be adopted.
2.准备热处理。应视模具作业零件的资料和要求的不同别离选用退火、正火或调质等准备热处理工艺,以改善安排,消除铸造毛坯的安排缺点,改善加工工艺性。高碳合金模具钢通过恰当的准备热处理可消除网状二次渗碳体或链状碳化物,使碳化物球化、细化,促进碳化物散布均匀性。这样有利于确保淬火、回火质量,提高模具寿数。
2. prepare for heat treatment. In order to improve the arrangement, eliminate the shortcomings of casting blank arrangement and improve the processing technicality, annealing, normalizing or tempering should be selected separately according to the different information and requirements of die parts. High-carbon alloy die steel can eliminate network secondary carbide or chain carbide by proper preparation heat treatment, make carbide spheroidization and refinement, and promote carbide distribution uniformity. This is conducive to ensuring the quality of quenching and tempering and improving the life of the die.
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3.淬火与回火。这是模具热处理中的关键环节。若淬火加热时发生过热,不只会使工件造成较大的脆性,而且在冷却时简单引起变形和开裂,严重影响模具寿数。冲模淬火加热时特别应留意避免氧化和脱碳,应严格控制热处理工艺标准,在条件允许的情况下,可选用真空热处理。淬火后应及时回火,并根据技能要求选用不同的回火工艺。
3. quenching and tempering. This is the key link in die heat treatment. If overheating occurs during quenching and heating, it will not only cause greater brittleness of the workpiece, but also cause deformation and cracking during cooling, which will seriously affect the life of the die. When the die is quenched and heated, special attention should be paid to avoiding oxidation and decarbonization. The standard of heat treatment process should be strictly controlled. Vacuum heat treatment can be used when conditions permit. After quenching, tempering should be done in time, and different tempering processes should be selected according to the technical requirements.
4.消应力退火。模具作业零件在粗加工后应进行消应力退火处理,具意图是消除粗加工所造成的内应力,避免淬火叫发生过大的变形和裂纹。关于精度要求高的模具,在磨削或电加工后还需通过消应力回火处理,有利于安稳模具精度,提高运用寿数。
4. stress relief annealing. Die parts should be annealed after rough machining, with the intention of eliminating the internal stress caused by rough machining and avoiding excessive deformation and cracks caused by quenching. As for the die with high precision requirement, stress relief and tempering should be adopted after grinding or electro-processing, which is conducive to stabilizing the accuracy of the die and improving its service life.
综上所述有济南立强模具有限公司提供,想了解更多山东模具制造厂家知识,欢迎关注我们的网站:http://www.sdlqmj.com谢谢支持!
In summary, all the above-mentioned Jinan Liqiang Mould Co., Ltd. provides, want to know more about Shandong mould manufacturers, welcome to pay attention to our website: http://www.sdlqmj.com, thank you for your support!

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