焊接钢管和无缝钢管的特点

Molding process of the steel tube

1. 354manbetx 焊接，将其切成钢带窄钢带，然后用冷模包裹成管状。然后特殊焊接然后是管道焊缝焊接。外面的焊缝亮起明亮。在管道的毛刺内部不打架。唯一的精度焊接在毛刺内。
   
2. seamless steel pipe is cylindrical ingot hot pull into a tube, so can not see the weld.

Use classification of steel pipe:

1. 浇水管道常用焊接钢管，运输液和气体所谓，感受压力，所以墙壁相对较厚。老年人知道，丰富的穷人，很多它被称为时代的特点，不太认真。原来的钱镀锌是的，两条刷油漆在线。黑色好，称为黑色铁管。
2. the conduit is to wear a wire and thin-walled tube. At that time only the standard, no one production. In fact, the eighties and nineties of gas pipes with water.
3. galvanized iron pipe is galvanized welded steel pipe. Galvanized inside and outside, water can be transported. Let Electric used when threading. General are relatively thin wall. Now on the market is poor. Elbow bend angle to blast hole.

Anti-corrosion classfication of steel pipe:

钢管：钢管在两端打开，并且具有中空横截面和它们的相对大的长度，并且钢的附近可以分开，根据无缝和焊接钢管，管道规格尺寸的生产方法（如直径或一侧长度）和壁厚，尺寸的非常宽的尺寸，从小直径毛细管直径直径，直径几米。钢管可用于管道，热设备，工业机械，石油勘探，集装箱，化工和特殊目的。

Seamless steel pipe:seamless steel pipe is made from a single piece of metal on the surface of steel pipe joints. Production methods can be divided into hot-rolled pipes, cold rolled tubes, cold drawn tubes, extruded tube. Can be divided into two kinds of round and shaped cross-sectional shape. The seamless pipe of the maximum diameter of 650 mm (enlarged diameter tubes), a minimum diameter of 0.3 mm (capillary). According to different thickness can be divided into thick-walled pipes and thin-walled tube. Seamless pipe is mainly used for the petroleum exploration tube, petrochemical cracking tubes, boiler tubes, the bearing tube as well as the automotive, aerospace steel and other high-precision structure.

354manbetx welded steel pipe refers to the bending deformation of the steel strip or steel sheet as round, square and other shapes and then welded into the steel pipe, the surface of the seam. According to the different welding methods can be divided into the arc welded pipe, high or low frequency electric resistance welded pipe, gas pipe, stove pipe, Bundy tube. Weld shape can be divided into Longitudinal and spiral welded pipe.

354manbetx used for oil drilling and machinery manufacturing. The furnace can be used as a water pipe and gas pipe, large diameter welded pipe used for high-pressure oil and gas transmission; spiral welded pipe for oil and gas transmission pipe piles, piers. The welded steel pipe is lower than the cost of seamless steel, high production efficiency.