琪琪色网-日本在线a一区视频高清视频-国产农村乱辈无码-伊人久久综合精品无码av专区-成人国产欧美日韩在线视频-欧美专区在线播放-久久国产片-国内精品偷拍视频-久久久久国产精品熟女影院-欧洲自拍偷拍-日韩六区-一本大道东京热无码aⅴ-美女av在线免费观看-成人女人黄网站免费视频-91精品国

Service Hotline

086-577-86923687

Current Location:Home - News - Products Knowledge

Comparison Process head cold and hot processing

Release Time:2011-10-26 Views :

Processing head is generally divided into cold and hot working are two, compare the following three aspects of the two paper processing head were:

A, head cold material deterioration does not occur, especially suitable for processing stainless steel head;

Thermal processing material deterioration will occur, resulting in decreased corrosion resistance of stainless steel head, stainless steel head is not suitable for processing.

B, cold will not change the size of the contraction caused by cooling, regular shape, size, accuracy and consistency;

Hot forming mold can cause thermal expansion and contraction of the cooling head, the size difference is difficult to control and consistency.

C, to maintain the surface after head cold forming smooth surface of the original material, beautiful appearance.

Surface oxide formed after thermal processing head of serious and difficult to remove.

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