欧美黑吊大战白妞欧美大片-日批视频免费-超碰视屏-欧美一级特黄aaaaaa-日本午夜精品理论片a级app发布-人人干人人澡-午夜精品久久久久久久99黑人-男人与雌宠物交h-日韩成人免费在线-天天射夜夜爽-九一亚色-香蕉视频首页-一区二区三区视频免费在线观看-欧美日韩亚洲国产一区-久久这里有-我不卡av-婷婷综合在线视频-久久在线视频精品-国产蜜臀在线-午夜欧美成人

全國熱線服務:

News 當前位置:首頁 > News >
Advantages of rolled tubes compared to traditional honed tube processing 2022/08/24
Comparedwiththeprocessingoftraditionalhonedpipes,rolledpipeshavethefollowingadvantages:1.Increasepro...
Analysis of anti-rust oil types for high-precision cold drawn pipes 2022/07/27
Ifyouwanthigh-precisioncold-drawnpipestobetreatedwithanti-rustoil,youneedtounderstandwhattypesofanti...
Briefly describe the process flow of cold drawn and honed pipes 2022/06/22
Colddrawn(rolled)honedpipe:roundtubeblank→heating→piercing→annealing→pickling&ra...
Oil leakage will also occur when the rolling pipe is installed and fixed not in compliance with the requirements. 2022/05/26
Commonimproperinstallationandfixationinclude:2.Donotpayattentiontothefixationduringinstallation.When...
How do we cold treat high-precision cold drawn tubes? 2022/04/29
HighprecisioncolddrawntubeItwillcausetheresidualausteniteinsidetotransformintomartensite,butitisimpo...
Analysis of the causes of overheating during honing tube processing 2022/03/21
1.Thehoningtubeandstuffingboxareskewedduringassembly,causinglocalfrictionwitheachother,andshouldbead...
Rolled tubes can undergo various complex deformations and deep mechanical processing 2022/02/22
Rolledpipeisaprecisionsteelpipematerialthathasbeenprocessedbycolddrawingorhotrolling.Ithashighdimens...
Analysis of factors that increase the cold brittleness of high-precision cold drawn pipes 2022/01/21
1.Solidsolutionstrengtheningelements.Phosphorusincreasesthetoughness-to-brittlenesstransitiontempera...