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  • What is ultrasonic testing?

    What is ultrasonic testing?

    Ultrasonic testing utilizes the numerous characteristics of ultrasound to determine whether there are defects inside the tested material or workpiece by observing the propagation changes of ultrasound in the tested material or workpiece displayed on the ultrasonic testing instrument.   The ...
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  • What are the non-destructive testing methods suitable for large forgings

    What are the non-destructive testing methods suitable for large forgings

    Ultrasonic Testing (UT): Using the principles of ultrasonic propagation and reflection in materials to detect defects. Advantages: It can detect internal defects in forgings, such as pores, inclusions, cracks, etc; Having high detection sensitivity and positioning accuracy; The entire forging can...
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  • Tempering of steel forging parts

    Tempering of steel forging parts

    Tempering is a heat treatment process in which the workpiece is quenched and heated to a temperature below Ac1 (the starting temperature for pearlite to austenite transformation during heating), held for a certain period of time, and then cooled to room temperature. Tempering is generally followe...
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  • What are the advantages of making forgings with 4145H

    What are the advantages of making forgings with 4145H

    4145H is a structured steel mainly used for the manufacturing and use of oil well drilling tools. The steel is processed in an arc furnace and processed through soft refining technology. In addition, oil drills are often used to improve the performance of drill bits. When using 4145H steel in dir...
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  • Choose 4145H or 4145H MOD for the stabilizer

    Choose 4145H or 4145H MOD for the stabilizer

    4145H and 4145H MOD are two different steel specifications mainly used for high-strength and high-temperature applications in the petroleum and natural gas industries. Their differences lie in the following aspects: Chemical composition: There is a slight difference in the chemical composition b...
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  • Quenching and tempering treatment

    Quenching and tempering treatment

    Quenching and tempering treatment refers to a dual heat treatment method of quenching and high-temperature tempering, which aims to ensure that the workpiece has good comprehensive mechanical properties. High temperature tempering refers to tempering between 500-650 ℃. Most quenched and tempered ...
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  • Shaft Forgings for Hydraulic Turbines and Hydraulic Generators

    Shaft Forgings for Hydraulic Turbines and Hydraulic Generators

    1 Smelting 1.1  Alkaline electric furnace smelting should be used for forging steel. 2 Forging 2.1 Sufficient cutting allowance should be present at the upper and lower ends of the steel ingot to ensure that the forged piece is free from shrinkage cavities and severe segregation. 2.2 The forging...
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  • The book club of< Only One Thing in Life>

    The book club of< Only One Thing in Life>

    On October 25th, the October Book Club event took place in the company’s conference room as scheduled. The theme of this book club was “There is Only One Thing in Life,” and the company’s leadership, business, procurement, inspection, and other teams all attended the even...
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  • Open forging parts

    Open forging parts

    The basic processes of free forging include upsetting, elongation, punching, bending, twisting, displacement, cutting, and forging. Free forging elongation Elongation, also known as extension, is a forging process that reduces the cross-sectional area of the billet and increases its length. Elong...
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  • Forging for rotor of industrial steam turbines

    Forging for rotor of industrial steam turbines

    1. Smelting   1.1 For the production of forged parts, alkaline electric arc furnace smelting followed by external refining is recommended for steel ingots. Other methods ensuring quality can also be used for smelting.   1.2 Prior to or during the casting of ingots, the steel should unde...
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  • Normalizing of the forging part

    Normalizing of the forging part

    Normalizing is a heat treatment that improves the toughness of steel. After heating the steel components to a temperature of 30-50 ℃ above the Ac3 temperature, hold them for a period of time and air cool them out of the furnace. The main characteristic is that the cooling rate is faster than anne...
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  • Some Technical Spec For forged tower flanges of wind turbine

    Some Technical Spec For forged tower flanges of wind turbine

    General Requirements Flange manufacturing companies must possess the technical capabilities, production capacity, and inspection and testing capabilities required for the products, along with at least two years of experience in the forging industry.   Manufacturing Equipment Flange manufactu...
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