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Suzhou Tengkai Metal Materials Co., Ltd. is a professional heat treatment adding manufacturer, established in 2008. There are currently over 40 employees, 7 technical personnel and 5 inspectors. The company has corresponding professional testing and R&D department……

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Vacuum Heat Treatment Process of Bearing Steel

The full name of bearing steel is rolling bearing steel, which has high compressive strength and fatigue limit, high hardness, high wear resistance and certain toughness, good hardenability, and stric

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Classification of stainless steel

The number of types of stainless steel depends on which classification method is used, such as based on chemical composition or functional characteristics, or metallographic structure or heat treatmen

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What is secondary austenitization in heat treatment？

The two-phase structure in duplex stainless steel changes with the increase of heating temperature. When the temperature exceeds 1300 ℃, some duplex stainless steels may have a ferrite structure. When

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How to Second Quench Stainless Steel？

How can stainless steel (iron) provide hardness and how to increase the hardness to a higher level? The secondary quenching process can be used. Stainless steel (such as 30Cr13 steel), using seconda

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What is the difference between air tempering and vacuum tempering?

1. Vacuum annealing furnace is mainly suitable for continuous bright annealing, solid solution, demagnetization, and stainless steel quenching treatment of stainless steel products such as heating equ

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Common heat treatment process concepts

1. Normalizing: A heat treatment process that heats steel or steel components to an appropriate temperature above the critical point AC3 or ACM and maintains it for a certain period of time before coo

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Surface treatment process of stainless steel with black and gray technology

1、 Technical concept: QPQ "is the abbreviation for" Quench P0lish Quench "in English. The original meaning is quenching, polishing, and quenching. After salt bath composite treatment, in order to re

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Incomplete quenching heat treatment processing

Incomplete quenching refers to the heat treatment process of heating hypereutectoid (and eutectoid) steel to a temperature between Ac1 and Acm, followed by rapid cooling after insulation (see Figure 2

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Incomplete quenching heat treatment processing

Incomplete quenching refers to the heat treatment process of heating hypereutectoid (and eutectoid) steel to a temperature between Ac1 and Acm, followed by rapid cooling after insulation (see Figure 2

Classification of stainless steel

The number of types of stainless steel depends on which classification method is used, such as based on chemical composition or functional characteristics, or metallographic structure or heat treatmen

What is secondary austenitization in heat treatment？

The two-phase structure in duplex stainless steel changes with the increase of heating temperature. When the temperature exceeds 1300 ℃, some duplex stainless steels may have a ferrite structure. When

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