亚洲第一网色综合久久红第一,玩弄人妻少妇500系列视频,proxxon是国产,人妻大战黑人白浆狂泄

歡迎進(jìn)入深圳市錦鴻宇實(shí)業(yè)有限公司官網(wǎng)!
News
NewsNews

How to prevent mold damage?

時(shí)間:2020-06-09瀏覽次數(shù):6104
With the continuous development of industry, we can know the rapid development of various industries, then when used, it may cause certain damage, it may be caused when we use it, or it may be because of processing Caused, so how to prevent mold damage? Let's take a look below!


1. Good casting structure design

The wall thickness of the casting is as uniform as possible to avoid the occurrence of thermal joints to reduce the thermal fatigue caused by the local heat concentration of the mold. There should be proper rounded corners at the corners of the casting to avoid stress caused by sharp corners on the mold.

 

2. Reasonable mold structure design

 1) The components in the mold should have sufficient rigidity and strength to withstand the pressure without deformation. The mold wall thickness must be sufficient to reduce deformation.

2) The pouring system design minimizes impact and erosion on the core.

3) Correctly select the tolerance fit and surface roughness of each component.

4) Maintain mold thermal balance.

 

3. Standard heat treatment process

Through heat treatment, the metallographic structure of the material can be changed to ensure the necessary strength, hardness, dimensional stability at high temperature, thermal fatigue resistance and material cutting performance.

 The correct heat treatment process will get the best mold performance, and the performance of the steel is controlled by the quenching temperature and time, cooling rate and tempering temperature.

服務(wù)熱線:13631565136
手機(jī):18926579610
電話:0755-26740010
郵箱:senyuanmoju@126.com
地址:廣東省深圳市寶安區(qū)石巖街道水田工業(yè)區(qū)寶石東路123號(hào)7棟1樓

掃一掃關(guān)注我們

两个领导在车里吃我奶| 亚洲一区二区三区日本久久九| 青青青国产精品一区二区| 久久热精品视频| 97色伦图片97综合影院| 小寡妇高潮流白浆A片| 国产真实乱人偷精品视频| 欧美性大战XXXXX久久久| 丰满白嫩少妇肉肉大HD| 久久精品国产亚洲AV日韩| 欧美最猛黑人XXXXX猛交| 亚洲中文字幕无码专区| 精品人妻人人爽久久爽av蜜桃| 日本极品粉嫩小泬337P图片| 99久久蜜桃AV毛片毛片| 亚洲欧美精品AAAAAA片| 久久99精品久久久久久| 国产伦精品一区二区三区| 久久久WWW成人免费毛片| 欧美大荫蒂AV高潮| 国产一区二区三区精华液| 亚洲 中文字幕 日韩 无码| 无码精品人妻一区二区三区AV| 变态抽搐顶弄H| 国产精品久久久久久岛国| 另类sm一区二区三区免费视频 | 国产老太一性一交一乱| 欧洲熟妇色XXXX欧美老妇免费| 少妇饥渴偷公乱400章深夜书屋| 怀孕高潮潮喷大肚子孕妇| 又白又嫩毛又多12P| 和尚伦流澡到高潮H漫画| 人妻 日韩精品 中文字幕 | 香港三日本三级少妇三级2021| 最美情侣韩国片免费观看| 波多野结衣网站| 大炕上大战白胖老妇| 亚洲AV无码国产综合专区| 久久久久无码专区亚洲AV| 少妇愉情理伦片高潮日本| 女女互磨互喷水高潮LES呻吟 |