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5 kinds of advanced heat treatment technology analysis!

Article source: Hebei YUANTUO electromechanical Click: Time of publication: May 4, 2019 16:09:43

1. Controlled atmosphere heat treatment
Controlled atmosphere heat treatment is mainly to prevent oxidation and decarburization, and accurately control carburizing and nitriding. It was applied to industrial production in the late 1980s. So far, the speed of development and the wide application are amazing.
 
2. Vacuum heat treatment
Salt bath quenching is restricted by the environment, and it is in the sunset. The application and development of vacuum heat treatment technology has been further improved and promoted. It has the characteristics of no oxidation, no decarburization, clean and bright surface after quenching, high wear resistance, no pollution and high degree of automation. Vacuum annealing, vacuum degassing, vacuum oil quenching, vacuum water quenching, vacuum gas quenching, vacuum tempering and vacuum carburizing are widely used in industrial production. In recent years, with the advent of high pressure gas quenching vacuum furnace, the vacuum quenching of high speed steel tools has become a reality.
 
3. Induction heat treatment and ion nitriding heat treatment technology
Induction heat treatment With the advantages of high efficiency, energy saving, cleaning and flexibility, it is widely used in automobile industry, engineering machinery, petrochemical industry and other industries. Nearly 40% of automobile parts can be treated by induction heat treatment, such as crankshaft, gear, universal joint, half shaft, etc. With induction heating, many products can be processed into automatic or semi-automatic production lines to improve the stability of product quality, reduce labor intensity and beautify the working environment. What makes Zui fast in China Induction heating power supply The old-fashioned electron shock tube has completed its historical mission and replaced it with all transistor. It is convenient and stable to adjust the power supply with transistor and greatly reduce the interference.
 
4. Quenching medium and cooling technology
There are several characteristics of the low temperature quenching medium: (1) the low temperature quenching medium should have the following characteristics: 1. That is to eliminate cracks and reduce quenching deformation. (2) It's not easy to burn or burn, and it's not easy to burn or burn. (3) Stable type: the performance of the workpiece is uniform and stable after quenching, and the medium itself is stable in a certain period of time. (4) Economic type: high quality and good price, low energy consumption.
 
In recent years, the development of quenching medium is very rapid. The properties of quenching oil have been improved, and the research and application of Organic Polymer Quenchants have reached an unprecedented development.
 
5. Adopting new surface strengthening technology and popularizing heat treatment in nitrogen based atmosphere
The original surface treatment methods of tools are limited to steam treatment, oxynitriding and other obsolete methods, which can only increase the tool life by 30% ~ 50%. Since 1980s, QPQ salt bath composite treatment technology and PVD titanium oxide physical coating technology have been independently developed and imported from abroad. The former can steadily increase the tool life by 2 ~ 3 times, with simple equipment and low cost, which is especially suitable for dry ordinary cutting tools; the latter can increase the tool life by 3 ~ 5 times, which is suitable for various precision and expensive gear cutters.
 
Nitrogen based atmosphere, used for protective heat treatment and chemical heat treatment, can realize non oxidative decarburization heat treatment, and can avoid heat treatment nitrogen embrittlement. Nitrogen based atmosphere chemical heat treatment can reduce internal oxidation and improve the quality of chemical heat treatment.
 
The above is Hebei YUANTUO electromechanical Factory for you to summarize the market for metal heat treatment of the five major technology, YUANTUO electrical and mechanical plant for many years focused on steel tube heat treatment furnace, steel bar heat treatment furnace, steel bar heat treatment equipment, screw steel heat treatment equipment, sucker rod heat treatment furnace and other metal heat treatment equipment research and production, welcome new and old customers to visit our factory!

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