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  • What is 45# steel?

    What is 45# steel?

    What is 45# steel? 45# steel is a carbon structural steel with a carbon content of 0.45%. It is characterized by low price, good cutting performance, high hardness after quenching, and good toughness and wear resistance after quenching and tempering. 45# steel is widely used in the manufa ...

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  • Study on the structure and properties of tantalum metal

    Study on the structure and properties of tantalum metal

    Tantalum is an indispensable strategic raw material for the development of electronics industry and space technology. With its unique structure and properties, tantalum has great applications in orthopedics, electronics, chemical and metallurgical industries. This article mainly introduces the ...

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  • Commonly used HV-HB-HRC hardness comparison table

    Commonly used HV-HB-HRC hardness comparison table

    What is hardness? Hardness refers to the ability of a material to resist local deformation, especially plastic deformation, indentation or scratches. It is a measure of the hardness of the material. Commonly used HV=HB=HRC hardness comparison table Tensile strength ...

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  • How to choose flat washer and spring washer correctly?

    How to choose flat washer and spring washer correctly?

    What is a flat washer? The flat washer is mainly stamped out of an iron plate. The shape is generally a flat washer with a hole in the middle. The role of flat washer Flat washers are usually thin pieces of various shapes used to reduce friction, prevent leakage, isolate, prevent loose ...

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  • What is a stainless steel threaded automatic exhaust valve?

    What is a stainless steel threaded automatic exhaust valve?

    What is a stainless steel threaded automatic exhaust valve? Stainless steel threaded automatic exhaust valve is used in water system heating, fire fighting, water supply and drainage, to eliminate pipeline bubbles, eliminate air resistance, and prevent uneven cold and heat caused by reduced wa ...

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  • Performance and application of industrial pure zirconium

    Performance and application of industrial pure zirconium

    The chemical composition, processing, heat treatment, performance, safety and application of industrial pure zirconium in my country are briefly introduced. The symbol of zirconium is Zr, which is located in the IV-B group of the periodic table. It is a silver-white metal. It has a high me ...

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  • Difficulties in processing ASTM A182 F51 duplex stainless steel

    Difficulties in processing ASTM A182 F51 duplex stainless steel

    Yaang has undertaken the trial production of a fluid rotary head installed in tens of meters deep sea water under the sea. When the fluid rotating head works, it should meet the requirements of no leakage inside and outside, strong corrosion resistance, and be able to adapt to a variety of fluid ...

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  • What is zirconium?

    What is zirconium?

    What is zirconium? Zirconium is a kind of active metal, which is easy to produce oxidation reaction. If it can react with oxygen in the air at room temperature to form an oxide protective film. This protective film gives zirconium and zirconium alloys the best corrosion resistance. This oxide ...

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  • How to improve the heat transfer coefficient of heat exchanger?

    How to improve the heat transfer coefficient of heat exchanger?

    Changing fluid flow Increase the flow rate Increasing the velocity can change the flow state and increase the turbulence fluctuation. For example, tube side and shell side split in shell and tube heat exchanger is one of the measures to increase flow rate, process length and disturbance. Ho ...

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  • How to weld low carbon steel, medium carbon steel, aluminum alloy, titanium alloy, copper alloy and ordinary low alloy steel?

    How to weld low carbon steel, medium carbon steel, aluminum alloy, titanium alloy, copper alloy and ordinary low alloy steel?

    How to weld low carbon steel? Low carbon steel has low carbon content and good plasticity. It can be made into various types of joints and components. In the welding process, it is not easy to produce hardened structure, the tendency to produce cracks is very small, and it is not easy to p ...

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  • Calculation method and selection of regulating valve diameter

    Calculation method and selection of regulating valve diameter

    To calculate the diameter of the control valve, it is necessary to determine the calculation flow rate, determine the differential pressure, calculate the flow capacity, select the flow capacity, check and determine the diameter of the control valve. Today, I would like to share with you the releva ...

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  • What is stainless steel plate?

    What is stainless steel plate?

    What is stainless steel plate? Stainless steel plate is the general term of stainless steel plate and acid resistant steel plate. Stainless steel plate refers to the steel plate which is resistant to the corrosion of weak medium such as atmosphere, steam and water, while the acid resistant ste ...

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