精品国产产一区二区三区久久,丰满少妇大力进入av亚洲,国产下药迷倒白嫩美女,粗大浓稠硕大噗嗤噗嗤h

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):6269
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7棟1樓

掃一掃關(guān)注我們

美女露100%双奶头无遮挡| 国内精品久久人妻无码hd浪潮| 亚洲日韩一区精品射精| 婷婷国产成人精品视频小说| 男男调教惩罚做到哭play| 男女吃奶做爰猛烈紧视频| 年轻的少妇a级伦理| cao死你好紧好爽好湿视频男男| 久久泄欲网| 亚洲一区二区三区av天堂| 欧美喷潮久久久xxxxx| 日本japanese熟睡人妻| 美女裸体啪啪到高潮无遮挡 | 国产真实伦熟女实例hd| 国模少妇一区二区三区咪咕| 办公室撕开奶罩揉吮奶漫画| 国精产品一品二品国精破解| 欧美老熟妇又粗又大| 蜜桃av噜噜一区二区三区视频 | 97人妻天天摸天天爽天天| 妽妽用身体满足了我| 美女被强行扒开双腿被桶屁股| 精品无码人妻一区二区三区| 成熟丰满熟妇老狼xxxxx| 一路向西在线| 成人h视频在线观看| 丰满多毛的大隂唇特写图片| 国产jk精品白丝av在线观看| 全彩调教本子h里番全彩无码| 久久精品国产亚洲av无码 | 欧美性生交a片免费看| 青青精品视频国产| 奇米网777四色首页| 久久婷婷五夜综合色啪软件下| 冲田杏梨k乳女教师未删减版| 少妇大叫太大太粗太爽了a片小说 国产精品久久久久久无码不卡 | 男生女生向前冲第六季| 体育生gay白袜调教video| 免费人成年激情视频在线观看| 久久久久99精品成人片直播 | 不断作死后我成了白月光|