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  • Acid pickling, phosphating, passivation, and saponification of seamless steel pipes

    Acid pickling, phosphating, passivation, and saponification of seamless steel pipes

    The pickling and passivation of seamless steel pipes is a chemical reaction. Firstly, the oxide skin and rust on the steel surface can be removed through the pickling solution, while completing the passivation process. It can effectively prevent oxidation of seamless steel pipes and achieve the ...
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  • Introduction to Steel Mechanical Properties

    Introduction to Steel Mechanical Properties

      Yield point When the stress of a steel or specimen exceeds the elastic limit during stretching, even if the stress no longer increases, the steel or specimen continues to undergo significant plastic deformation, which is called yield. The minimum stress value at which yield occurs is the ...
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  • Technical implementation of optical axis

    Technical implementation of optical axis

    Elements of optical axis technology implementation: The optical shaft is a type of optical shaft coupling that ensures the reliability and stability of motion and torque transmission, adjustable torque transmission, and does not affect the lifespan. The optical axis joint includes: a shell, with...
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  • Introduction to piston rod

    Introduction to piston rod

    The piston rod is mainly used for hydraulic pneumatic, engineering machinery, automotive manufacturing piston rods, plastic machinery guide pillars, packaging machinery, printing machinery roller shafts, textile machinery, conveyor machinery axis, and linear optical axis for linear motion. The p...
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  • Differences in Galvanizing, Cadmium Plating, Chromium Plating, and Nickel Plating of Steel Pipe Round Steel

    Differences in Galvanizing, Cadmium Plating, Chromium Plating, and Nickel Plating of Steel Pipe Round Steel

    What are the differences between zinc plating, cadmium plating, chromium plating, and nickel plating of steel pipe and steel bar? 1.Galvanizing Characteristics: Zinc is relatively stable in dry air and is not easily discolored. In water and humid atmospheres, it reacts with oxygen or carbon diox...
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  • Quenching and tempering heat treatment of 40Cr steel?

    Quenching and tempering heat treatment of 40Cr steel?

    What is the quenching and tempering heat treatment of 40Cr steel? 40Cr improves the hardenability of steel, enhances its strength and tempering stability, and has excellent mechanical properties. Workpieces with large cross-sectional dimensions or important adjustments should use Cr steel, but C...
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  • What are the methods of steel heat treatment?

    What are the methods of steel heat treatment?

    The process of heating, holding, and cooling a metal in a solid state to improve or alter its properties and microstructure is called heat treatment. According to the different purposes of heat treatment, there are different heat treatment methods, which can be mainly divided into the following ...
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  • What stainless steel seamless pipes are used in cars?

    What stainless steel seamless pipes are used in cars?

    What stainless steel seamless pipes are used in cars? Next, New Gap Metal will introduce the characteristics of various stainless steel seamless pipes used in automobiles. Characteristics of ferritic stainless steel plate: The crystal structure is body centered cubic at high and low temperatures...
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  • Introduction and technical standards of hydraulic steel pipes

    Introduction and technical standards of hydraulic steel pipes

    In the specification, it is DIN2391-1. The raw materials of hydraulic steel pipes are processed through precision drawing, non oxidation bright light heat treatment (NBK state), non-destructive testing, high-pressure flushing and acid washing of the inner holes of the steel pipes, rust preventio...
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  • Mechanical properties of seamless steel pipes

    Mechanical properties of seamless steel pipes

    The mechanical function of seamless steel pipes is an important goal to ensure the ultimate functionality (mechanical function) of the steel, which depends on the chemical composition and heat treatment criteria of the steel. In the steel pipe specification, the tensile function (tensile strengt...
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  • Introduction to Thick Wall Precision Steel Pipe

    Introduction to Thick Wall Precision Steel Pipe

    Precision steel pipe is a high-precision steel pipe material processed by cold drawing or hot rolling. Due to the advantages of no oxidation layer on the inner and outer walls of precision steel pipes, no leakage under high pressure, high smoothness, no deformation during cold bending, flaring, ...
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  • Introduction to Hydraulic high pressure pipe

    Introduction to Hydraulic high pressure pipe

    What is a high-pressure oil pipe? High pressure oil pipes are a component of the high-pressure oil circuit, which requires the oil pipes to withstand a certain amount of oil pressure and have a certain fatigue strength to ensure the sealing requirements of the pipelines. High pressure oil pipes ...
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