成人做爰高潮a片免费视频,国产精品一区二区毛卡片,亚洲av精品无码国产一区,怎么找附近的寂寞少妇

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

News Up Next

Products

: Elliptical head

: Butterfly head

: Spherical head spin edge

: Flat Head

: Spherical head

: Bow bottom head

: Conical head

: Spherical cap shaped head

: Insulation panel

: Expansion Joints

: Jacket (cylinder) rotation side

: Manhole flange

Home Head Series Products News Parameter Company Profile Contact Us Company Culture

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

人与禽120分钟性视频| 女学生小嫩嫩裸体视频高清WWW| 亚洲日韩一区精品射精| 寡妇大j8又粗又大| 怀孕妇女bbwbbw| 免费看片的app| 国产日韩一区二区三免费高清| 樱花yy私人在线影院| 狠狠综合久久av一区二区| 狠狠色综合网站久久久久久久| 图片区小说区另类春色视频| 继夫的玩弄h辣文| 3d动漫精品啪啪一区二区免费 | 欧美激情视频| 国产黄a三级三级三级看三级| 七十路熟女のお婆ち| 国产国产乱老熟女视频网站97| 台湾三级| 欧美疯狂做受xxxxx高潮| 亚洲午夜无码av毛片久久| 狠狠躁夜夜躁人爽碰88a| 亚洲熟妇色xxxxx欧美老妇y| 精品人妻一区二区三区四区| 人久人久人久污污污精品国产| 乖把屁股撅起来喷出来h| 美少年高潮h跪趴扩张调教喷水| 性饥渴艳妇K8经典A片| 熟妇人妻av无码一区二区三区| a片免费| 国产av人人夜夜澡人人爽麻豆| 少妇伦子伦精品无码| 玩弄白嫩少妇xxxxx性| 夜夜躁狠狠躁日日躁AAB| 国产综合精品| 国产伦精品一区二区三区免费| 国产精品人人妻人色五月| 被几个领导玩弄一晚上| 出轨熟女人妻hd中文| 成人性生交大片免费看中国| 熟妇人妻中文字幕| 午夜性做爰A片免费看|