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What details should be processed before using thick-walled steel pipes?
1. Thick-walled steel pipe cutting: According to the actual required pipeline length, metal saws and toothless saws should be used for cutting pipes. When using water welding in the cutting process, there must be a method of protecting the raw materials. When cutting, the fireproof and heat-resis...Read more -
Large diameter straight seam steel pipe technological process and main equipment（2）
Large diameter straight seam steel pipe technological process and main equipment In order to change the roundness of the steel pipe, the steel pipe finishing machine: apply strong pressure from the outside to the long round pipe with poor roundness section by section, so that it can meet the rele...Read more -
Large diameter straight seam steel pipe technological process and main equipment（1）
Large diameter straight seam steel pipe technological process and main equipment（1） The two plate edges are processed into the desired form at a time. The steel plate edge milling machine: machine the two sides of the plate material for tube making and make the parallelism of the two plate edge...Read more -
The reason for the misalignment of the head or tail of the steel pipe
The reason for the misalignment of the head or tail of the steel pipe 1) The position of the import and export rollers is incorrect; 2) The center of the ring frame is wrong; 3) The roundness of the seam pressure roller is not good, and the position of individual pressure rollers is deviated; ...Read more -
Acceptance of straight seam steel pipe
1. The inspection and acceptance of straight seam steel pipes shall be carried out by the technical supervision department of the supplier. 2. The supplier guarantees that the delivered straight seam steel pipes meet the requirements of the corresponding product standards. The buyer has the right...Read more -
Quenching technology of straight seam welded pipe
Straight seam welded pipe surface quenching, tempering, heat treatment is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness and effective hardened layer depth. Hardness testing can use Vickers hardness tester, Rockwell or...Read more -
Pipeline leak monitoring system
The pipeline leakage monitoring system is the pipeline leakage information management, which monitors the liquid (crude oil or other liquids) transportation pipelines throughout the day, minute and second. Once the pipeline leaks, the monitoring system can alarm in time through its information ma...Read more -
Classification of pipeline trenchless technology
Trenchless technology can be divided into three categories: laying new pipelines, repairing and replacing old pipelines, and detecting the original pipeline network. 1.Construction techniques for laying new pipelines: shield method, pipe jacking method, pilot / directional drilling pipe laying me...Read more -
Adaptability of epoxy resin coated steel pipe
Epoxy resin coated steel pipe coating is a thermosetting plastic, which combines the advantages of steel and plastic, and its scope of application includes: 1. Fire sprinkler system and domestic water supply and drainage; 2. Gas drainage, mud transportation and ventilation system in the coal mine...Read more -
The difference between plastic-lined steel pipe and steel-plastic composite pipe
The difference between plastic-lined steel pipe and steel-plastic composite pipe 1. Toxicity The steel-plastic composite pipe is a five-layer composite pipe. The inner layer is non-toxic and non-polluting, but the main material of the inner layer of the plastic-lined steel pipe is epoxy resin pow...Read more -
What is plastic-lined composite steel pipe?
An emerging composite pipe material, referred to as steel-plastic pipe. There are many classifications of steel-plastic composite pipes, which can be classified according to the structure of the pipe: steel belt reinforced steel-plastic composite pipe, seamless steel pipe reinforced steel-plastic...Read more -
The difference between galvanized products
1) Both the inner and outer walls of the hot-dip galvanized steel pipe are galvanized, while the cold-galvanized steel pipe is only galvanized on the outer wall. 2) The cold plating layer is uniform and the thickness is very thin; the hot plating layer is thick and the thickness is not uniform. ...Read more