中文字幕在线亚洲精品,国产精品www夜色视频,国产精品av在线,久久久久夜夜夜精品国产,国产做爰又粗又大又爽动漫,欧美人妻aⅴ中文字幕,亚洲av无码国产综合专区,国产又色又爽又黄的,亚洲熟妇自偷自拍另欧美,狠狠精品久久久无码中文字幕

Service Hotline
086-577-86923687
Current Location:Home - News - Products Knowledge
Generate a magnetic stainless steel head cold causes and solutions
Release Time:2011-09-16  Views :
Stainless Steel head case more data is austenitic stainless steel as material, cold forming processing methods. After the cold worked austenitic stainless steel generally produce strong or weak magnetic, especially for stainless steel head, elbow, deep drawing parts, such as processing a large extent the product.
 
Cold worked stainless steel head causes magnetism:
First, when the metastable austenitic stainless steel cold forming, a portion of the austenite martensite transformation, and keep the original austenite coherent in shear mode in the absence of diffusion occurs very short phase transition, students called induced martensitic transformation or deformation induced martensitic transformation;
Second, the martensitic stainless steel generally α 'Markov Hugh and dense hexagonal structure ε martensite two kinds of forms, including α' body-centered cubic structure having a magnetic martensite, ε martensite non-magnetic, but only higher nickel-chromium content, it produced ε martensite.
So commonly used in the stainless steel parts of the organization by the austenite into martensite, it will generate a magnetic. Austenite stability by its chemical composition determines, work-induced martensite and is also related to the intensity of processing.
 
If you want to avoid generating magnetic stainless steel head method it can only be based on a material change or for solution treatment.
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

亚洲女厕偷拍一区二区| 很黄很色的女同视频一区二区| 日本一区二区不卡超清在线播放| 亚洲天堂一区二区偷拍| 激情乱码一区二区三区| 国产一区二区不卡老阿姨| 亚洲另类欧美综合久久图片区| 十四以下岁毛片带血a级| 国产免费人成视频网站在线18| 蜜桃传媒免费观看视频| 抖射在线免费观看视频网站| 国产女女做受ⅹxx高潮| 欧美日韩国产码高清综合人成| 亚洲欧美日韩另类精品一区| 情爱偷拍视频一区二区| 亚洲国产精品婷婷久久| 日本高清一区二区不卡| 日韩精品一区二区三区视频 | 韩日午夜在线资源一区二区| 成人日韩熟女高清视频一区| 中文字幕影片免费人妻少妇| 美女被男人插得高潮的网站| 男女边摸边吃奶边做视频韩国| 免费在线国产不卡视频 | 色偷偷亚洲av男人的天堂| 另类人妖在线观看一区二区| 亚洲av鲁丝一区二区三区| 五月天激情婷婷婷久久| 卡一卡二卡三无人区| 国内女人喷潮完整视频| 亚洲精品国偷拍自产在线| 国产精品h片在线播放| 伊人久久精品无码av一区| 日韩在线观看入口一二三四| 激情久久黄色免费网站| 精品国产中文久久久免费| 亚洲成人一区二区三区不卡| 亚洲精彩av大片在线观看| 亚洲国产综合精品中文| 中文字幕精品乱码一二三区| 久久精品国产亚洲av夜夜|