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: 日韩精品一区二区在线观看 | 成人www视频 | 尤物国产精品福利三区 | 日本国内一区二区三区 | 国产一区二区免费不卡在线播放 | 四虎成人影院 | 国产毛片a级| 久久精品国产72国产精福利 | 日本免费高清视频二区 | 2018天天操天天干 | 日韩精品一区二区三区中文字幕 | 高清国产美女一级a毛片录 高清国产美女一级毛片 | 天天操天天谢 | 久久精品国产74国产 | 天天操国产 | 狠狠色狠狠色很很综合很久久 | 日本视频在线 | 中文学幕专区 | 国产成人精品免费影视大全 | 手机在线看片国产日韩生活片 | 国产日韩在线看 | 色综合天天综合网国产国产人 | 美日韩视频 | 强制中出しバス痴汉在线观看 | 久久一区二区三区99 | 国产欧美日韩视频在线观看 | 日本二区免费一片黄2019 | 亚洲99久久无色码中文字幕 | 亚洲欧美专区精品伊人久久 | 99热久久国产精品一区 | 亚洲精品专区一区二区欧美 | 国内自拍一二三四2021 | 亚洲日韩中文字幕 | 伊人蕉久中文字幕无码专区 | 狠狠干狠狠撸 | 国产精品久久久久无毒 | 中文成人在线 | 欧美性禁片在线观看 | 日韩亚洲欧美视频 | 韩国v欧美v亚洲v日本v | 钙片永久免费网站bl |