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How to check the welding quality of elbow pipe fittings？
1. Appearance inspection of elbow pipe fittings: generally, the naked eye survey is the main method. Through appearance inspection, it can find the appearance defects of welding elbow pipe fittings, and sometimes use 5-20 times magnifying glass to investigate. Such as edge biting, porosity, weld...Read more -
How to inspect the welding quality of elbow fittings
1. Appearance inspection of elbow fittings: generally, visual inspection is the main method. Through the appearance inspection, it is found that the weld appearance defects of welded elbow pipe fittings are detected by 5-20 times magnifying glass sometimes. Such as undercut, porosity, weld bead, ...Read more -
Maintenance method of elbow
1. Elbows stored for a long time shall be inspected regularly. The exposed processing surface shall be kept clean, dirt shall be removed, and stored neatly in a ventilated and dry place indoors. Stacking or outdoor storage is strictly prohibited. Always keep the elbow dry and ventilated, keep the...Read more -
Welding method of pipe spools
There are many customers who need steel pipe spools in the last two years. Today we are going to learn about the welding method of pipe spools. According to the use and pipe, the commonly used connection methods are: thread connection, flange connection, welding, groove connection (clamp connecti...Read more -
Process study of flange forgings
This article outlines the drawbacks and problems of the traditional flange forging process, and conducts an in-depth study on the process control, forming method, process implementation, forging inspection and post-forging heat treatment of flange forgings in combination with specific cases. The ...Read more -
Improve Production Technology of ERW Steel Pipe
Straight seam welded pipe (ERW straight seam welded steel pipe) is formed on the hot rolled plate of the forming machine, the skin effect and proximity effect of the high frequency current, melting of the pipe edge heating to the extrusion roller pressure welding to achieve production. The applic...Read more