Category: Uncategorized

Research progress on pipeline corrosion and protection at home and abroad

1. Pipeline fluid has the advantages of low cost and safety, and is the most widely used fluid transport method. However, since most of the pipelines are buried underground, they will be corroded by the transport medium, soil, groundwater and stray currents. Corrosion will lead to thinning of the pipe wall and even leakage of the perforations, […]

Factors influencing heat treatment of stainless steel plates after welding

In the heat treatment of stainless steel plates, tempering is mainly used to soften any hard microstructures that may be formed during the previous heat treatment, improve the ductility and toughness of the material. In addition, the tempering can also form precipitates, and the size of these precipitates can be controlled to provide the required mechanical […]

Introduction of the mainstream production technology of stainless steel pipe in the world

In recent years, the rapid development of production technology and equipment technology level of global stainless steel pipe, stainless steel pipe international advanced production features is the use of new equipment, new technology, automatic control and NDT to improve product quality and yield, in the domestic stainless steel welded pipe and seamless steel pipe production technology […]

Pipeline Sight Glass

There are two kinds of pipeline sight glasses: There are two types of duct pipeline sight glasses: First, the glass pipe sight glasse, observation of large field of view, light transmission is good, simple structure, cost-effective, but the pressure is low (generally not more than 0.6MPa); Second, the glass plate through sight glass, the use of […]

Seven advantages of stamping elbow

The seven advantages of stamping elbow: The first, light weight, stamping elbow density of 0.89 0.91 g/cm, is only one over ten of the steel pipe. And because the light weight, can industry greatly reduce the transportation cost and installation of construction strength. The second, good corrosion resistance, stamping elbow with a few hydrogenation agent, resistant […]

Reasons for cracking of austenitic stainless steel elbow

Titanium sponge production process often used stainless steel tube cooler for cooling four titanium tetrachloride, and four titanium tetrachloride contact material for austenitic stainless steel (1Cr18Ni9Ti), and the cooling medium contact material for Q235A steel. The hot side of the casing pipe cooler is welded by 180 degrees stainless steel elbow. In the production process, the casing […]