What details should be noted when choosing the spiral steel pipe factory wire flux

Now the process of domestic spiral steel pipe are double-sided submerged arc welding, double-sided submerged arc welding skills were created and used in 1940, its welding process and hand welding has the same local, is the use of slag welding, spiral steel pipe submerged arc welding and hand welding is different from the local wire […]

Appearance how to test the quality of spiral steel pipe

Many users buy spiral steel pipe, due to the lack of professional testing equipment, this time only from the appearance of the quality of spiral steel pipe detection, the following are several common methods of determination. 1, from the surface of the spiral steel pipe to see whether the manufacturing process of spiral pipe is […]

Analysis of the degree of turning of spiral steel pipe

Longitudinal welded pipe consumption process is simple, high consumption efficiency, low cost, the development of faster. The strength of spiral welded pipe is generally higher than that of straight seam welded pipe, and it can use narrower billet to consume welded pipe with larger pipe diameter size, and it can also use the same width […]

Spiral steel pipe in the production of attention to matters

Spiral steel pipe in the process of making spiral welded pipe, the following issues need to be noted. 1, oiling and marking: the spiral steel pipe in the inspection of qualified oiling operation to prevent corrosion, and marking according to customer requirements. 2, leveling and milling: the use of anvil machine to level the original […]

Spiral steel pipe welding seam disadvantages

The small length of the filler weld is 50mm. if the direction of the shortcoming on the base material of the steel pipe, the filler weld should be along the circumferential direction. Patch welding seam should be repaired and ground, so that the transition with the original appearance of the steel pipe steep. The height […]

The role of spiral steel pipe and the main use of items

Can say that related to the previous 10 years spiral steel tube industry, 14 years spiral steel tube industry is a dismal year, whether from the number of acquisitions, or from the price, a drop to low, the financial crisis erupted in 2008 than 14 years also strong, but also not fully involved in the […]

The production process of spiral steel pipe plant

Spiral steel pipe is a spiral steel pipe welded by active double-wire double-sided submerged arc welding process with strip steel coil as raw material, kneading and forming at regular temperature. The production process is as follows: raw materials, i.e. strip steel coil, welding wire, welding flux. In the input before are subjected to severe physical […]

Spiral steel pipe surface rust removal treatment has several methods

1、Cleaning Apply solvents and emulsions to clean the exterior of steel to remove oil, grease, dust, slick and similar organic substances, but it cannot remove rust, oxidation skin, welding powder, etc. on the exterior of steel, so it is only used as an auxiliary trick in anti-corrosion production. 2、Spraying (throwing) rust removal Spraying (throwing) rust […]

The appearance quality inspection method of spiral steel pipe

Judging from the surface, that is, in the appearance of the inspection. Usually users in the purchase of spiral steel pipe, due to the absence of professional testing equipment, at this time can only use the naked eye on the quality of spiral pipe appearance inspection, in order to roughly determine the quality of steel […]

Spiral steel pipe process

(1) Raw materials, i.e. strip coil, welding wire, flux. Before input are subject to strict physical and chemical inspection. (2) Strip head and tail butt, using single or double wire submerged arc welding, and automatic submerged arc welding filler welding after rolled into steel pipe. (3) Before forming, the strip is leveled, edge cutting, edge […]