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Causes of trachoma in welds of spiral submerged arc welded steel pipes
Spiral steel pipe is made of strip steel that is bent in a spiral direction through a rolling machine and then welded by capacitor double-sided submerged arc welding. During the welding production process of spiral steel pipes, many galvanized channel steel problems such as missed welds and misal...Read more -
Details of large diameter straight seam plastic coated steel pipe
Characteristics of large-diameter straight-seam plastic-coated steel pipes: Its characteristics combine the characteristics of straight-seam steel pipes and the characteristics of epoxy resin. 1: Characteristics of straight seam steel pipes: Straight seam steel pipes have a simple production proc...Read more -
Seamless steel pipe heat treatment process details normalizing, annealing, tempering, quenching
①Heat treatment: a. Heating: Heating below Ac1 is mainly to stabilize the structure of the steel and eliminate internal stress. Heating above Ac3 is mainly to austenitize the steel. b. Insulation: The purpose is to uniform the heating temperature of the steel pipe to obtain a reasonable heating s...Read more -
How does the hot-rolled steel pipe process affect the quality of steel pipes
The impact of hot-rolled steel pipe technology on steel pipe quality is mainly reflected in the following aspects: 1. Rolling temperature: Rolling temperature is one of the most important parameters in the hot rolling process. If the temperature is too high, the steel may overheat, oxidize, or ev...Read more -
Solid solution pickling of seamless stainless steel pipes
In the kingdom of steel, seamless stainless steel pipes have become the darling of construction, chemical, petroleum, food processing, and other industries for their excellent corrosion resistance and elegant appearance. However, for these metal giants to maintain their best condition in various ...Read more -
What are the advantages of using a 3pe anti-corrosion straight seam steel pipe
3pe anti-corrosion straight seam steel pipe is made of three layers of polyethylene or polypropylene wrapped around the outside of the steel pipe. Commonly used base materials include spiral pipes, seamless pipes, straight seam pipes, and galvanized steel pipes. Among them, galvanized steel pipes...Read more -
Details of anti-corrosion treatment of large diameter thick wall spiral steel pipe
Anti-corrosion spiral steel pipe is to carry out anti-corrosion treatment on spiral steel pipe. The main anti-corrosion method is polyurethane anti-corrosion spiral pipe. After preliminary treatment such as rust removal, the steel pipe is first put on a polyethylene jacket. The thickness is deter...Read more -
Application of spiral steel pipes in urban pipelines
Spiral steel pipes are usually used in urban drainage pipes. The use of spiral steel pipes in urban drainage pipe systems is the comprehensive arrangement of urban water supply, water supply, water supply, drainage, sewage treatment, and other pipeline systems and their various components within ...Read more -
How to deal with the problem of blackening stainless steel profiles
The blackening of stainless steel profiles may be caused by long-term use, oxidation, or exposure to certain substances. To deal with this problem, you can try the following methods: 1. Use special stainless steel cleaning agents: There are many special stainless steel cleaning agents on the mark...Read more -
Common pipe simmering equipment for steel bending pipe
Steel bending pipe bending is divided into two types: cold simmering and hot simmering. Cold simmering is to bend the steel bending pipe at normal temperature. There is no need to fill the pipe with sand, and there is no need to heat the simmering steel bending pipe section. It is easy to operate...Read more -
What are the requirements for surface treatment of galvanized steel pipes
There are many requirements for the surface treatment of galvanized steel pipes, as follows: 1. Cleanliness: The surface of the steel pipe should be cleaned of oil, dust, oxide scale, welding slag, and other impurities to ensure that the galvanized layer is closely combined with the surface of th...Read more -
What are the advantages of seamless steel pipes compared to other steel materials
1. Higher strength and corrosion resistance Compared with other steel materials, seamless steel pipes have higher strength and corrosion resistance. This is because seamless steel pipes are made of high-quality materials such as stainless steel, which have better corrosion resistance and higher t...Read more