There will be rust spots on the elbow of the stainless steel pipe, indicating that the elbow is not made of pure stainless steel, but is a stainless steel elbow of electroplating type. The rust spots can be polished with ultra-fine sandpaper and then sprayed with colorless varnish for anti-rust trea
Welding, also known as fusion, is a manufacturing process and technique that can join metals or other thermoplastic composite materials (such as plastics) by applying heat, high temperature, or high pressure. There are three welding methods:1. Fusion welding. The workpiece is heated to form a molten
Selection requirements for submerged arc steel pipes:1. For pipelines with high peak shaving requirements, due to the uneven gas consumption of users, frequent fluctuations in pipeline pressure, and great alternating stress on the steel pipe, the existing defects in the pipe will expand under the al
The steel reducers belong to chemical pipe fittings and are used for the connection between two pipes of different diameters. According to different shapes, it is divided into two types: concentric steel reducers and eccentric steel reducers. The head material includes stainless steel head (304304l3
1 Judging from the surface, that is, in visual inspection. Visual inspection of welded joints is a simple procedure with a wide variety of inspection methods and is an important part of finished product inspection, mainly to find welding surface defects and dimensional deviations. Tests are generall
Oil casing is a large-diameter pipe that acts to fix the wall or bore of oil and gas oil wells. The casing is inserted into the wellbore and fixed with cement to help the wellbore separate the rock formations and prevent the wellbore from collapsing while ensuring the circulation of drilling mud to
Product name: SSAW steel pipeMaterial: Carbon steelSize: 813x9.53x6000mmStandard: API 5L/ASTM A53Quantity: 5000 tonsMany cooperations have given the customer full confidence in THREEWAY STEEL.
The construction of cement mortar fabric should usually be carried out after the spiral steel pipe is laid, the pressure test is qualified, and the soil is compacted according to the planning requirements. Due to the small rigidity and thin wall of the steel pipe, the pipeline must be in a stable st
First, safety precautions1. It is strictly forbidden to stand under the primary straight-through valve of the steam boiler pipeline drain. 2. There is no one within 1 meter in the diameter of the outlet of the drainpipe at each drain point. 3. There is no one within 50 meters of the outlet direction
Introduction of the high-frequency welding process of submerged arc steel pipe:1. Control of weld gap: After rolling by multiple rollers, the strip is sent to the welded pipe unit. The strip steel is gradually rolled up to form a circular tube blank with an opening gap, and the reduced amount of the
