1.The pipe elongation of welded pipe equipment is generally about 4-5mm, otherwise it will cause defects, which is particularly important. 2.The cleanliness of the pipe and tube plate is required to be high, so the pipe should be cleaned with lye first and polished to shine.This production of ...

Welded pipes are divided into the following varieties due to their different materials and USES: (Galvanized welded pipes for low-pressure fluid transport).It is mainly used for conveying water, gas, air, oil, heating hot water or steam and other fluids of generally lower pressure and other pu...

In recent years, the automobile industry at home and abroad has been implementing lightweight automobile to save energy, and it is urgent to replace solid parts with high-strength hollow parts.It is technically feasible to develop high strength steel tubes instead of seamless tubes to meet the ne...

Straight seam welded pipe production process is brief, high production efficiency, low cost, fast development.The strength of spiral welded pipe is generally higher than that of straight welded pipe. Narrow blank can be used to produce welded pipe with larger pipe diameter, and the same width of ...

1. Strictly according to the requirements of the operation, when starting up, must first water, check the waterway no abnormal conditions, and then start the machine equipment to work;The opposite is true when it is switched off. 2. Different industries have different pertinence: (I) Therma...

There are two different forming methods for high frequency pipe welding machine: First weld, then form. that is, first weld into a round tube, then into a special-shaped tube.Such as rectangular tube, oval, dow tubsteel wine, etc.The advantage of this method is that in the production of seve...

During the 1980s and 1990s, with the renovation of domestic welded pipe plants and the construction of joint venture welded pipe plants, a large number of welded pipe sets manufactured abroad entered China. They came from developed countries such as the United States, Japan, Germany and other Wes...

During the forming process, the steel plate is uniformly deformed with small residual stress and no surface scratches.The processed spiral steel pipe has greater flexibility in the size and specification range of diameter and wall thickness, especially in the production of high-steel grade th...

As a major basic material of building materials industry, steel pipes are in great demand in China. Now, the export of spiral steel pipes has gradually occupied the market position. The fierce development trend of the industry makes people think: compared with ordinary steel pipes, where is the a...

In the first half of the year, China's welded pipe market was affected by coVID-19 at the beginning of the year, and the domestic welded pipe price was greatly hit. With the orderly resumption of work and production in various industries in March, the demand for welded pipe increased explodes, an...