亚洲国产成人91精品-亚洲国产成人99精品激情在线-亚洲国产成人超福利久久精品-亚洲国产成人成上人色-亚洲国产成人精彩精品-亚洲国产成人精品91久久久

Service Hotline
086-577-86923687
Current Location:Home - News - Products Knowledge
thermal stress generated by processing stainless steel head
Release Time:2011-11-29  Views :
Stainless steel head due to the inconsistent surface and center cooling rate and time, the occurrence of thermal stress. Stainless steel head the workpiece surface pressure and heart Ministry tension under the action of thermal stress. This phenomenon is cooled velocity, material composition and heat treatment and other factors.
 
Stainless steel during heat treatment due to the change in the organization that is the transformation of austenite to martensite, accompanied by an increase in specific volume expansion in volume of the workpiece, the various parts of the workpiece has a phase change, causing the volume grew inconsistency of the stress.
 
The end result stainless steel head the surface tissue stress is tensile stress, the heart portion compressive stress, and thermal stress exactly the opposite. The stress in the workpiece size and cooling rate of martensite transformation zone factor, shape, chemical composition of the material.
 
Thermal stress before organizational changes it has produced a stainless steel head, and the stress is generated in the organizational transformation process, the entire cooling process, heat stress and the results of the stress combined effects, that is, the work actually present stress . The results of these two combined effects of stress is very complex, being affected by many factors, such as composition, shape, heat treatment and so on. Only two types, namely thermal stress and stress, the role of the opposite direction when the two offset its development process, the role of the same direction both mutual superposition.
Key Words : 不銹鋼封頭
Products
Elliptical head
Elliptical head
Butterfly head
Butterfly head
Spherical head spin edge
Spherical head spin edge
Flat Head
Flat Head
Spherical head
Spherical head
Bow bottom head
Bow bottom head
Conical head
Conical head
Spherical cap shaped head
Spherical cap shaped head
Insulation panel
Insulation panel
Expansion Joints
Expansion Joints
Jacket (cylinder) rotation side
Jacket (cylinder) rotation side
Manhole flange
Manhole flange
NAVIGATION
Wenzhou Shangshang Metal Products Co., Ltd.
Add : 208,Zhanhong Road,Dushan,Longwan CentralIndustry,Wenzhou
Tel : 086-577-86923687 85981288  Fax : 086-577-86913687
All Rights Reserved © 2016 Wenzhou Shangshang Metal Products Co., Ltd    Zhejiang ICP No. 08,005,782
  • Follow Us

    Follow Us

主站蜘蛛池模板: 狠狠色狠狠色综合日日五 | 最新步兵社区在线观看 | 成人国产在线看不卡 | 亚洲 欧美 日韩 另类 | 岛国性视频播放免费视频 | 亚洲综合色婷婷中文字幕 | 巨大欧美黑人xxxxbbbb | 国产高清网站 | 最近中文字幕精彩视频 | 日韩3级| 中文字幕在线播放不卡 | 国产成人精品动图 | 久久久精品免费热线观看 | 国产精品视频第一区二区三区 | a∨在线观看 | 亚洲伊人久久精品 | 国产精品亚洲四区在线观看 | 亚洲精品午夜视频 | 精品亚洲成a人在线播放 | 青青草论坛 | 欧美中日韩在线 | 成人影院天天5g天天爽无毒影院 | 一本一本久久α久久精品66 | 午夜寂寞影院在线观看 | 91成人影院未满十八勿入 | 免费不卡中文字幕在线 | 天天草夜夜 | 91精品国产综合久久欧美 | 综合久久久久综合 | brazzers欧美最新极品 | 成年大片免费视频播放手机不卡 | 青青草成人网 | 欧美性色黄大片www 欧美性生活网站 | 日韩精品一区二区在线观看 | 91原创国产 | 女人被狂躁视频免费网站 | 欧美资源在线 | 色免费在线观看 | 亚洲撸 | 最近最新中文字幕在线第一页 | 97人人网 |