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Points to note when cutting rectangular tubes
Points to note when cutting rectangular tubes 1. For the place to be cut, wipe off the oil, debris or mud on the surface of the rectangular tube with a rag or soft cloth. 2. Be sure to select special stainless steel cutting tools. 3. According to the construction drawing and the situation on site...Read more -
Features of pipeline NDT
Features of pipeline NDT The characteristic of non-destructive testing is that it can be tested without damaging the material and structure of the test piece. Therefore, after implementing non-destructive testing, the inspection rate of the product can reach 100%. However, not all items and indic...Read more -
Advantages of DFPB tube-bimetal heavy protection cable bridge tube
Advantages of DFPB tube-bimetalheavy protection cable bridge tube 1. The installation and construction are simple, fast and convenient, suitable for construction in a variety of severe environments, without encapsulation; 2. No aging, breaking, decay, or deformation, ensure that the reserved pipe...Read more -
Welding control of thick-walled steel pipes
1. Welding temperature control of thick-walled steel pipes The welding temperature is affected by the high-frequency eddy current thermal power. The high-frequency eddy current thermal power is affected by the current frequency. The eddy current thermal power is proportional to the square of the ...Read more -
Straight seam steel pipe purity improvement
High frequency welded pipe flattening cracking is caused by welding micro cracks, hard and brittle phase inclusions, coarse grain-like structure, etc. In order to control the welding seam well, the concept of welding inclusion crack index is proposed. Mainly caused by insufficient welding strengt...Read more -
Three kinds of materials for pipeline fire blocking
Three kinds of materials for pipeline fire blocking Fire blocking material is specially used to block various openings and cable bridges formed by various penetrations in buildings through walls, floors, etc., which has fire prevention and heat insulation functions and is easy to replace. Accordi...Read more -
Preparation for trenchless repair of pipelines
1. Preset the required materials (and add 1m to the actual demand of the existing pipeline). 2. On-site length measurement of the pipeline. 3. Measure the on-site pipeline, understand the size of the tube well, and measure in all directions and all directions. 4. The inspection of mechanical equi...Read more -
How to prevent decarburization of steel pipes?
Once decarburization occurs in the production process of the steel pipe, it will affect the subsequent process and reduce the high-quality performance and service life of the steel pipe itself. Therefore, manufacturers usually take appropriate measures to avoid or solve this problem In general, t...Read more -
Three main differences between oil casing pipe and oil drill pipe
1.Uses of oil casing pipe and oil drill pipe: Oil casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. Each well will use several layers of casing according to different dr...Read more -
large-diameter thin-walled pipes
large-diameter thin-walled pipes 1. Generally large-diameter thin-walled pipes are used for the transportation of generally lower-pressure fluids such as water, gas, air, oil and heating steam. 2. Ordinary carbon steel wire bushings are steel pipes used to protect wires in electrical installation...Read more -
Large-diameter steel pipe connection type
Large-diameter steel pipe connection type 1. Quick-connect flange type: perform circular argon arc welding on the flange and the supporting parts, and use the fast clip to compress the gasket between the flanges to play a sealing role and complete the supporting connection. 2.Welding type: Perfor...Read more -
Adaptability of epoxy resin coated steel pipe
The coating of epoxy resin coated steel pipe belongs to 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 i...Read more