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Changes in Mechanical Properties During Tempering Heat Treatment
Tempering heat treatment is a heat treatment operation in which the workpiece is heated to a temperature lower than the critical point after quenching, held for a certain period of time, and then cooled to room temperature. The purpose of tempering heat treatment is to obtain the required stable ...
Determination of Carburizing Heat Treatment Process Parameters
Carburizing heat treatment is a kind of metal surface treatment. The method is to place the workpiece in an active carburizing medium and heat it to the single-phase austenite zone for carburizing heat treatment. Carburizing heat treatment can make the surface of the carburized workpiece obtain h...
Ion Nitriding and Gas Nitriding
Gas Nitriding Gas nitriding has low efficiency due to the decomposition of NH3 for nitriding, so it is generally fixed to select steels suitable for nitriding, such as containing Al, Cr, Mo and other nitriding elements, otherwise the nitriding is almost impossible. Generally, JIS, SACM1, new JIS,...
Heat Treatment Anti-carburizing Copper Plating Process
Some of the heat-treated products require partial carburization, while such products require anti-seepage treatment in the non-carburized area. At present, copper plating technology is widely used for protection. The gas carburizing heat treatment temperature is 900-930°C, and the time is several...
Heat Treatment Method of Carburized parts
According to the structure of the parts, the service conditions, and the location of the process arrangement, the carburized parts can be heat treated by one of the following methods to achieve the best results. 1. Direct Quenching and Tempering Features: Can not refine the grain of steel. The qu...
Effect of Heat Treatment Process on Mechanical Properties of 20Cr14Co12Mo5 Bearing Steel
With the development of aerospace technology at home and abroad, bearing materials are facing the needs of high speed, high Hertz stress, temperature resistance, corrosion resistance and weight reduction. The requirements for various aspects of bearing materials are getting higher and higher, esp...
Analysis And Selection Of The Development Direction Of Heat Treatment
With the development of society and the advancement of science and technology, heat treatment technology is also constantly improving, so what is the development trend of heat treatment technology? Shanghai Gehang Vacuum Technology Co., Ltd., the manufacturer of vacuum heat treatment furnace, mak...
What Are The Benefits Of Vacuum Heat Treatment Technology And Why Do The Workpiece Deform？
Benefits of vacuum heat treatment technology: First, because the vacuum heating mainly relies on heat radiation at high temperature, the effect of low temperature convection is weak, so heating is slow, the temperature difference between the surface and the core of the workpiece is small, the exp...
Spring Sheet Brittleness And Heat Treatment Cracks
Spring leaf brittleness is one of the common defects of reed leaf, which can be divided into two types: heat treatment brittleness and hydrogen embrittlement after galvanizing. Microscopically, hydrogen embrittlement fractures have intergranular, dimples, secondary cracks, etc., and hair lines an...
Several Heat Treatment Characteristics Of Gear Materials
1. Hardenability Definition: Refers to the ability of steel to be quenched to obtain martensite. Different steel grades have different quenching capabilities. For steels with different hardenability, the depth of the hardened layer obtained after quenching is different, so the metallographic stru...