Daisy Dai

The raw material used in the straight seam is steel plate or strip steel, which is divided into furnace welding tube, electric welding (astm a53 erw steel pipe ) tube and automatic arc welding tube...

The corrosion of casing pipe is related to the metallurgical property of pipe material and service environment. Metallurgical properties of the pipe include: chemical composition, heat treatment and...

A so-called fluid tube appears on the market. In fact, it is a processed high-frequency welded pipe. The treatment method is to scrape or wear off the original weld by special equipment, and the other...

Common defects in high-frequency steel pipe welds include weld cracking, cracking, unfusion, cold welding, internal and external burrs, and inclusions. For weld cracking and cracking, there are strong...

There are two main factors affecting the quality of seamless steel pipe: steel and rolling process factors. Only the factors of the rolling process are discussed here. The main influencing factors are...

Casing pipe thread detection sensor mainly by the magnetizer and magnetic detection probe composed of two parts. According to the structural characteristics of the oil pipe thread area, there are two...

The welding tube plays an important role in the construction of the city and the drainage and power plant.General requirements straight astm a53 erw steel pipe on the surface of the tube to nearly...

Austenitic stainless steel tube to play the bottom of the welding, in the past by hand TIG welding with solid wire welding method, the tube to prevent the root of Ar to prevent oxidation of the weld...

In the process of seamless steel pipe, there are many steps to obtain a pipe with such high quality. By eliminating the work hardening of the seamless steel pipe, a satisfactory metallographic...

High-precision cold drawn precision steel pipe is a new type of high-tech energy-saving product. The precision steel pipe produced by this technology has been widely used in domestic hydraulic and...

At present, the detection of seamless steel tubes for high-pressure boilers in China's metallurgical industry is mainly applied to the specifications below?160mm, and most of them adopt the...

After the cold expansion of the seamless steel pipes, the diameter of the pipe body and the pipe will increase by about one percent. The diameter, the roundness and the difference between the...

The product specification of hot steel tube is the important function of phi 20mm phi 610mm national economy construction.Make the new production of large diameter ERW welded pipe units of product...

Austenitic stainless steel has always played the most important role in stainless steel, its production and use of about 30% of the total output and consumption of stainless steel. As the austenitic...

Hot-rolled small-diameter ultra-thin-wall seamless steel pipe, the billets are heated in a heating furnace, pierced into a capillary tube by a perforating unit, conveyed by a feeding mechanism into a...