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Vacuum Heat Treatment Furnace

Vacuum Sintering Furnace

Vacuum Brazing Furnace

Advantages of Low Pressure Pulse Vacuum Heat Treatment

Heat treatment is one of the four basic industries (casting, forging, heat treatment, welding) of mechanical manufacturing, and is a very important key process in the manufacturing process of mechanical products. Mechanical engineering is inseparable from die engineering, which is closely related to heat treatment. Heat treatment is to change the surface or internal structure of metal materials by heating, holding, and cooling them in a certain medium to achieve the expected performance requirements. It is the main means to ensure the internal quality of mechanical parts and tools. Proper heat treatment can improve the service life of parts and tools, improve product quality and enhance the market competitiveness of products.

With the development of automobile, motorcycle, information industry, engineering machinery, agricultural machinery, aerospace, weaponry, environmental protection equipment, mechanical basic parts and other industries, especially the rapid development of the tooling industry, heat treatment plants must actively adopt advanced technology, constantly carry out technical transformation and equipment upgrading, in order to achieve “high-quality, high-yield, low consumption” production.

Compared with developed countries, the heat treatment technology level in many countries still lags far behind. The main surface equipment and technology are backward, the box type, well type and salt bath furnaces are in the majority, the controlled atmosphere and vacuum furnaces are few, the efficiency of the heating furnace is low, the energy consumption is large, and the oxidation and decarburization of parts are serious, which often leads to the failure to ensure the product quality. Therefore, it is necessary to develop vacuum furnace and vacuum heat treatment process. Vacuum heat treatment is a heat treatment process that heats the workpiece to the required temperature under negative pressure and then cools it at different cooling rates. Vacuum heat treatment has the advantages of high quality, low energy consumption, no pollution (or less pollution), etc. Among them, vacuum nitriding heat treatment is a very extensive field.

Low pressure pulse vacuum heat treatment is a heat treatment technology that combines the advantages of vacuum heat treatment and pulse heat treatment. The application of this technology can replace the old traditional heat treatment and the old conventional heat treatment process. Relevant heat treatment equipment includes low-pressure pulse vacuum nitriding furnace, carburizing furnace, etc. This heat treatment equipment can realize such processes as low pressure pulse vacuum nitriding, carburizing, nitrocarburizing, carbonitriding, oxynitriding, multi-element nitriding and less or no oxidation heating.

Advantages of vacuum nitriding heat treatment:

1.Improve production efficiency and reduce production costs

After the workpiece is put into the furnace, the air in the furnace is discharged by air extraction to achieve rapid exhaust, reduce the air exchange time, improve the infiltration speed, thereby shortening the production cycle, improving the production efficiency and reducing the production cost.

2.High quality infiltration layer can be obtained

Pulse air extraction can degas and purify the surface of the workpiece, enhance the surface activity of the workpiece under the low vacuum state, improve the adsorption capacity of the workpiece surface to the elements infiltrated, and accelerate the diffusion, thus obtaining a dense and uniform penetration layer. At the same time, it can prevent internal oxidation, and avoid the generation of black tissue to improve the quality of the penetration layer. As the pulse process is to replace the furnace gas alternately by air extraction, air inflation or air inflation, the exchange of new and old gas can reach any part and corner, which solves the technical problem that the parts with small holes, blind holes and slits cannot penetrate or the penetration layer is uneven.

3.Improve equipment utilization

In the low voltage pulse vacuum state, the workpiece can be tightly packed, which improves the utilization rate of the equipment.

Low pressure pulse vacuum heat treatment is a kind of vacuum heat treatment, which helps to improve the quality of heat treatment, improve production efficiency, reduce production costs, and promote the technical development of the heat treatment industry.

Selection of vacuum heat treatment equipment: The vacuum heat treatment furnace produced by SIMUWU is a high-quality product for the vacuum heat treatment process of tools and dies. Good temperature control accuracy and uniformity ensure the effective implementation of the vacuum heat treatment process. SIMUWU focuses on the manufacturing of vacuum furnaces, has more than ten years of relevant experience, and has a good reputation in the field of vacuum furnace manufacturing. The product line includes vacuum gas quenching furnace, vacuum oil quenching furnace, vacuum brazing furnace, vacuum nitriding furnace, etc., which are widely sold in developed and developing countries.