News
-
Control of wall thickness of straight seam steel pipe
The control of the wall thickness of the straight seam steel pipe is a difficulty in the production of steel pipes. At present, the methods of wall thickness accuracy in the production of straight seam steel pipe manufacturers generally include: 1. Tube blank heating The heating should be even an...Read more -
How to avoid wear and tear of spiral steel pipe
1. Spiral steel pipe packaging should avoid loosening and damage during normal handling, transportation, and storage. 2. If the buyer has special requirements for the packaging material and packaging method of the spiral steel pipe, it should be specified in the contract; if not specified, the pa...Read more -
How is the spiral seam submerged arc welded steel pipe used for anti-corrosion
1. Mainly use tools such as wire brushes to grind the surface of the steel. The cleaning and preheating of the spiral welded pipe can remove the loose or raised oxide scale, rust, welding slag, etc. The rust removal of hand tools can reach the Sa2 level, and the rust removal of power tools can re...Read more -
Spiral steel pipes can be divided into several categories according to the purpose
There are roughly four categories of spiral steel pipes according to their uses: spiral steel pipes for drainage, dredging spiral steel pipes, piling spiral steel pipes, and oil and natural gas spiral steel pipes. Spiral steel pipe for drainage Spiral steel pipe material for drainage: Q235A, Q23b...Read more -
Eddy’s current non-destructive testing method for the weld seam of spiral welded pipe
As an efficient special means of transportation, pipeline transportation has played an increasingly important role in the fields of oil and natural gas transportation. At present, domestic large-diameter transportation pipelines are mainly constructed with spiral welded steel pipes. To ensure the...Read more -
What are the insulation methods of anti-corrosion steel pipes
Anti-corrosion steel pipe is a common steel pipe. To slow down and prevent the steel pipe from being corrupted and depreciated under the chemical and electrochemical action of internal and external media, or due to the metabolism of microorganisms, it is necessary to do a good job of anti-corrosi...Read more