人妻 色综合网站,日韩av激情在线观看,国产精品亚洲二区在线播放,中文字幕无码不卡免费视频

常熟國強和茂管材有限公司

Sinupower Heat Transfer Tubes Changshu Ltd.
CN EN

400-100-7068

+ 微信號:WEIXINHAOMA

Your location : Home > News > Company Dynamics

Classification and application scope of precision aluminum tubes

Source:en      Release date: 2022-05-17
Information summary:Precision aluminum tube is a kind of high-precision aluminum tube material processed by cold drawing or hot rolling. Knowing the product variety is more conducive to your choice, the variety of aluminum pipes is completely comparable to the diversity of biological species in small areas
Precision aluminum tube is a kind of high-precision aluminum tube material processed by cold drawing or hot rolling. Knowing the product variety is more conducive to your choice, the variety of aluminum pipes is completely comparable to the diversity of biological species in small areas. Now let me introduce to you.
  First, the classification of precision aluminum tubes: precision aluminum tubes are divided into two categories: precision aluminum tubes and welded precision aluminum tubes (seamed tubes). According to the cross-sectional shape, it can be divided into round tube and special-shaped tube. The widely used is the round precision aluminum tube, but there are also some square, rectangular, semicircular, hexagonal, equilateral triangle, octagonal and other special-shaped precision aluminum tubes. For precision aluminum tubes that are under fluid pressure, hydraulic tests must be carried out to check their pressure resistance and quality. It is qualified if no leakage, wetting or expansion occurs under the specified pressure. Carry out curling test, flaring test, flattening test, etc.
  Second, precision aluminum tubes: precision aluminum tubes are made of aluminum ingots or solid tube blanks through perforation to make capillaries, and then hot-rolled, cold-rolled or cold-drawn. The specification of precision aluminum tube is expressed by outer diameter * wall thickness mm. Precision tubes are divided into two categories: hot-rolled and cold-rolled (dial) precision tubes. Hot-rolled precision tubes are divided into general precision tubes, low and medium pressure boiler precision tubes, high pressure boiler precision tubes, alloy precision tubes, stainless precision tubes, petroleum cracking tubes, geological precision tubes and other precision tubes. In addition to general precision tubes, low and medium pressure boiler precision tubes, high pressure boiler precision tubes, alloy precision tubes, stainless precision tubes, petroleum cracking tubes, and other precision tubes, cold-rolled (dial) precision tubes also include carbon thin-walled precision tubes. Tube, alloy thin-walled precision tube, stainless thin-walled precision tube, special-shaped precision tube. The outer diameter of hot-rolled seamless tubes is generally greater than 32mm, and the wall thickness is 2.5-75mm. The diameter of cold-rolled precision tubes can reach 6mm and the wall thickness can reach 0.25mm. Higher dimensional accuracy than hot rolling.
  Third, the general use of precision tubes to ensure the strength and flattening test. Hot-rolled precision tubes are delivered in a hot-rolled state or heat-treated state; cold-rolled precision tubes are delivered in a heat-treated state.
  Due to the advantages of no oxide layer on the inner and outer walls of the precision seamless aluminum tube, no leakage under high pressure, high precision, high finish, no deformation in cold bending, no flaring, no cracks in flattening, etc., it is mainly used to produce products for pneumatic or hydraulic components, such as Cylinders or cylinders can be seamless pipes or welded pipes. Precision tubes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, seamless aluminum tubes for medium and low pressure boilers, etc., and can also be used in bearings, hydraulics, machining and other fields!
午夜男女无遮挡拍拍流水视频| 成人无码精品免费视频在线观看| 国产在线午夜不卡精品影院| 久久AV无码精品人妻糸列| 欧美老熟妇xb水多毛多| 国产午夜精品一区二区三区极品| 国产成本人片无码免费2020| 熟妇与小伙子matur老熟妇e| 欧美乱码伦视频免费| 亚洲精品无码AV人在线观看| 99久久国产成人免费网站| 久久青青草原亚洲AV无码麻豆| 亚洲午夜精品久久久久久APP| 国产久免费热视频在线观看| 在线无码免费的毛片视频| 夜夜添狠狠添高潮出水| 一卡二卡亚洲乱码一卡二卡| 国产精品一区二区 尿失禁| 最新亚洲卡一卡二卡三新区| 人妻AV一区二区三区精品| 一进一出抽搐GIF免费60秒| 欧美色aⅴ欧美综合色| 欧美国产综合欧美视频| 亚洲男同GV在线观看| 亚洲av无码av日韩av网站| 亚洲日本一区二区一本一道| 无码中出人妻中文字幕AV| 两个人的视频高清在线观看免费| 99久久精品费精品国产一区二| 国产大片黄在线观看| 制服丝袜人妻中文字幕在线| 国产妇女馒头高清泬20P多| 国产精品午睡沙发系列| 亚洲一卡2卡3卡4卡精品| 中文字幕久无码免费久久| 午夜男女爽爽影院免费视频| 中文字幕日韩精品无码内射| 欧美私人家庭影院| 国产精品毛片一区二区三区| 久久99RE66热这里只有精品| 亚洲欧洲自拍拍偷精品网314|