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News
Learn more about the classification and use of seamless steel pi
Views: 100 Sep 02 , 2022
The use and classification of seamless steel pipe Seamless steel pipe is a round, square, rectangular steel with a hollow section and no joints around it. Seamless steel pipes are made of steel ingots or solid tube blanks through perforation to make capillaries, which are then hot-rolled, cold-rolled or cold-drawn.
Uses: Seamless...
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What problems should be paid attention to when using seamless st
Views: 92 Sep 01 , 2022
The seamless steel pipe generally loses its bearing capacity at a temperature of 450~650 °C, and a very large deformation occurs, resulting in the bending of steel beams and steel columns. As a result, it cannot be used again due to excessive deformation. The fire resistance rating of the steel pipe is about 15 minutes.
The...
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Seamless steel pipe wall thickness detection method
Views: 99 Aug 30 , 2022
In the production process of seamless steel pipes, there is a certain range of wall thickness. We need to detect the wall thickness of seamless steel pipes. There are two methods for wall thickness detection, one is ultrasonic thickness measurement, the other is Laser thickness measurement.
Ultrasonic thickness measurement
The...
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Why should pipe ends be thickened during production of petroleum
Views: 97 Aug 23 , 2022
Petroleum steel pipe is a kind of long steel with hollow section and no joints around it, and petroleum cracking pipe is an economical section steel. Function: Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, bicycle frames and steel scaffolding used in...
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Innovative manufacturing process of high-precision small-diamete
Views: 97 Aug 19 , 2022
High-precision small-diameter high-pressure boiler seamless steel tubes have been widely used in hydraulic systems and diesel fuel systems. At present, cold-rolled or cold-drawn capillaries are generally used to manufacture high-precision, small-diameter, high-pressure seamless steel pipes. Although they can meet the technical...
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Passivation process of galvanized checkered sheet
Views: 121 Aug 16 , 2022
Passivation is widely used as an effective protective measure for metals and metal coatings in less severe environments.
The passivation treatment of galvanized checkered plate is a kind of chemical conversion coating treatment. The actual passivation process depends on the electrochemical reaction process on the metal surface....
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The main performance and classification of seamless square tube
Views: 101 Aug 12 , 2022
Seamless square pipe is a square steel pipe with four corners. It is a square steel pipe formed by cold drawing and kneading of seamless steel pipe.
The main properties of square tubes include: plasticity, hardness and fatigue. Plasticity refers to the ability of a metal material to undergo plastic deformation (permanent deformation)...
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Seamless tube processing technology
Views: 126 Aug 10 , 2022
The raw material of the thick-walled steel pipe comes from the steel pipe billet, which needs to be processed into the required billet through the processing technology, and the billet is sent to the furnace for heating through a conveyor belt or the like. Since the tube blank needs to be perforated by a pressure perforator after it is...
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Main uses of stainless steel
Views: 105 Aug 05 , 2022
1Cr18Ni9Ti austenitic type is the most widely used, suitable for food, chemical, pharmaceutical, atomic energy industries
0Cr25Ni20 material for austenitic furnace, material for automobile exhaust purification device
1Cr18Ni9 austenitic type has high strength by cold working, decorative parts for construction
0Cr18Ni9 austenitic...
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The method of effectively controlling the scar of galvanized sea
Views: 100 Aug 03 , 2022
Knowing that galvanized seamless steel pipes will have scars, what are these scars? These scars are small pits of different sizes like soybean particles, with gray-brown or gray-black foreign bodies in them. So, how to effectively control the scar of galvanized seamless steel pipe? This article introduces eight methods that can...
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