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Telphone：15210208588
Telphone 15210208588
Telphone：15210208588
RELATIONSHIP BETWEEN QUENCHING MEDIUM-HARDNESS AND QUENCHING RATE As long as the quenching cooling rate of steel is changed, different hardness values will be obtained. The main reason is that the structure of steel is different. When the co...
2019-01-20
From the macro point of view, cryogenic treatment has the following functions: cryogenic box, liquid nitrogen cryogenic box, ultra-cryogenic box, cryogenic equipment, cryogenic furnace, cryogenic treatment equipment, cryogenic assembly box,...
2019-01-20
Reasons and Preventive Measures of Hardness Insufficiency in Quenching Medium Cryogenic box, liquid nitrogen cryogenic box, ultra-cryogenic box, cryogenic equipment, cryogenic furnace, cryogenic treatment equipment, cryogenic assembly box, c...
2019-01-20
There are two kinds of cold treatment: ordinary treatment - 80 and ultra-cold treatment - 190. Ultra-cold treatment, also known as cryogenic treatment I, is recently called cryogenic treatment. After quenching and cooling, the transformatio...
2019-01-20
According to the test requirements of the standard for the gas seal and pressure strength of cryogenic valves, combined with the 25 MPa high pressure gas pressurization technology, the gas seal test system designed and manufactured can not...
2019-01-20
With the continuous development of machinery industry, the requirement for metal materials is becoming higher and higher. How to improve the mechanical properties and service life of metal workpieces as far as possible under the premise of m...
2019-01-20
Common Quenching Medium-Tempering Problems and Solution Skills The advantage of hot water tempering at 100 is that low temperature tempering usually uses about 180 to 200 to temper and oil boiling to temper. In fact, there are many advantage...
2019-01-20
Deformation occurs from time to time during heat treatment. In order to reduce this phenomenon, the following measures should be taken. 1. On the premise of ensuring the hardness of the die, the nitriding heat treatment plant tries to adopt...
2019-01-20
Effect of Quenching Medium-Concentration and Temperature on Cooling Rate of Quenching Fluid 1. The influence of concentration on cooling rate: the concentration is inversely proportional to the cooling rate, and the cooling rate decreases wi...
2019-01-20
There are many methods of surface treatment. In addition to several common methods, what other methods are unfamiliar to us? Mainly mechanical, chemical, electrochemical and physical methods. The main methods are as follows: (1) Painting: Th...
2019-01-20
We dont want to see the deformation of the precise and complex die, but this situation is inevitable. We only need to grasp its deformation law, analyze its causes, and adopt different methods to prevent the deformation of the die can be red...
2019-01-20
Cryogenic treatment technology is a new technology to improve the performance of metal workpieces. The so-called cryogenic treatment is to use liquid nitrogen (-196 C) as the cooling medium to continue the cooling process of the quenched met...
2019-01-20
What protection work should be done after metal surface treatment,？ During various heat treatment, mechanical processing, transportation and storage of metal surface, it is inevitable that the metal surface will be oxidized, resulting in u...
2019-01-20