News
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Causes and measures of oilpipeline leakages
Resulting oil pipeline leakages is for many reasons, there are some followings below. Some one-sided pursuit of profit, reduction of investment in safety protection facilities fierce competition in the market economy, in order to reduce costs, the pursuit of high profits, people are quick success...Read more -
Bonding pipe joints
Bonding pipe joints, where two or more parts use a combination of welded joints, or refers to two or more parts connected by welding joints, including welds, fusion zone and heat affected zone. Welded joints zone After fitting the metal and filler metal melts faster speed Youyi formed after cooli...Read more -
Annealing and quenching of cold drawn steel
Annealing of cold drawn steel The annealing of cold drawn steel is commonly used in the production of preliminary heat treatment process. The majority of machine parts and engineering, mold rough can eliminate internal stress and composition of casting, forging and weldment inhomogeneity; can imp...Read more -
Difference hot-dip galvanizing and cold galvanizing
Hot-dip galvanizing, it is at high temperatures the zinc ingots melt, being placed in the auxiliary material, then the metal structure is immersed in a zinc plating bath, so that the metal member attached to a layer on the zinc layer. The hot galvanized advantage depend on its preservative abilit...Read more -
CNC Plasma Cutting Configurations
There are 3 main configurations of CNC Plasma Cutting, and they are largely differentiated by the forms of materials before processing, and the flexibility of the cutting head. 1.Tube & Section Plasma Cutting Used in the processing of tube, pipe or any form of long section. The plasma cutting...Read more -
Characteristics of Spiral welded steel pipe and seamless pipe
Spiral welded steel pipe Spiral welded steel pipe is also known as the spiral steel pipe and spiral welded pipe,which is use low carbon structural steel or low alloy steel strip according to the angle of the spiral line (called the forming angle) rolled into a tube, and then the tube welded toget...Read more