99久久精品国产一区二区三区,欧美黑人又大又粗XXXXX,WWW国产精品内射,男s严厉调教女m小说

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

麻豆高潮AV久久久久久久| 毛片免费看| 最近日本韩国高清免费观看| 久久久久久AV无码免费网站下载| 日本肥熟妇搡bbbb搡bbbb| 国产午夜AV无码无片久久96| 国内精品久久久久影院欧美 | 亚洲AV无码国产精品色午友在线| 国产精品久久久久精品香蕉| 成人无码H免费动漫在线观看| 久久偷看各类WC女厕嘘嘘| 精品亚洲成A人无码成A在线观看| 久久精品99国产精品日本| 国产精品久久久久久无码| 表妺好紧竟然流水了在线观看 | 宝贝腿再张大点就能吃到扇贝了| 777亚洲精品乱码久久久久久| 成人性生交A片免费看网站| 在线亚洲人成电影网站色WWW | 国产V亚洲V天堂无码| 无码人妻久久一区二区三区| 奶水被挤得到处喷HNP| 麻花豆传媒MV在线观看网站| 亚洲中文久久精品无码WW16| 人妻少妇久久久久久97人妻| 男男调教后菊撑开扩张A片| XXXX丰满小少妇女高潮| 国产无遮挡无码视频免费软件| 久久人妻无码一区二区| 无码A级毛片免费视频内谢| 一女三黑人玩4P惨叫| 无遮挡国产高潮视频免费观看| 3d动漫精品啪啪一区二区| 国产精品无码一区二区三区免费| 女的扒开腿让男的猛进猛出| 国精产品一区二区三区有限公司| 久久精品A亚洲国产V高清不卡| 爱我久久免费观看高清| 国产精品乱码人妻一区二区三区| 亚洲午夜精品久久久久久APP | 欧美巨鞭大战丰满少妇|