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

亚洲国产精品无码久久九九大片 | 伊人色啪啪天天综合婷婷| 337P粉嫩大胆色噜噜噜| 国产老熟妇精品观看| 人人妻人人澡人人爽欧美一区九九| 狠狠躁日日躁夜夜躁2022麻豆 | 色吊丝AV中文字幕| 777亚洲精品乱码久久久久久| 亚洲精品久久久久久久久久久 | 七十路熟女のお婆ち| 久久久精品一区二区三区免费 | 欧美成A人片在线观看久| JAPAN少妇洗澡VIDEOS| 人妻互换亂倫激情| 大肉蒂被嘬的好爽H公主| 亚洲AV毛片一区二区三区| 麻花豆剧国产mv在视频| 中文字幕精品亚洲无线码二区| 精品国产偷窥一区二区| 色哟哟网站入口在线观看视频| 特黄做受又硬又粗又大视频18| 娇妻系列交换27部多P小| 欧美FREE性XXXX护士HD| 揉她小豆豆揉到失禁H| 四虎成人精品在永久免费| 久久夜色精品亚洲av三区| 丝袜灬啊灬快灬高潮了AV| 欧美精品一区二区少妇免费A片| 亚洲av综合色区无码一区爱av| 国产精品一区二区| 女同互慰高潮呻吟免费播放| 无遮挡A级毛片免费看| 午夜精品久久久久久久99热蜜桃| 与六十五老妇做爰| 国产色婷婷免费视频在线69堂| 免费做爰猛烈吃奶摸视频在线观看| 秘书在办公室被躁到高潮| 成人性生交大片免费看中国| 草草浮力影院| 精品人妻一区二区三区浪潮在线| 日本特黄特色aaa大片免费|