Hot-air jetting heating and shot-peening energy injecting type chemical heat treatment furnace

Abstract

The invention discloses a hot-air jetting heating and shot-peening energy injecting type chemical heat treatment furnace. The hot-air jetting heating and shot-peening energy injecting type chemical heat treatment furnace comprises a heating furnace, a shot blasting machine, a hot air generator, a hot air nozzle, a quenching tank and a carburizing agent container, wherein a shot storing device is arranged above the heating furnace; the hot air nozzle and a shot blaster of the shot blasting machine are arranged in the heating furnace; the shot blaster is connected with the shot storing device; the hot air nozzle is connected with the hot air generator through a pipeline; the hot air generator is connected with the carburizing agent container; the bottom part of the heating furnace is connected with the quenching tank through a quenching valve; an out-of-service shot collecting channel is formed at the lower part of the heating furnace; and a hearth is connected with a short collecting tank through the out-of-service shot collecting channel. By adopting the hot-air jetting heating and shot-peening energy injecting type chemical heat treatment furnace, the carburizing temperature is lowered, the carburizing time is reduced, the deformation in carburizing is reduced, the precision of parts is improved, the rejection rate is reduced to zero, the service life of the furnace is prolonged, and the carburizing cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of heat treatment, in particular to a chemical heat treatment furnace for hot air jet heating and blasting energy injection. Background technique [0002] Carburizing is to heat low-carbon steel parts to 900°C-950°C in a carburizing medium (carburizing agent), so that carbon atoms can penetrate into the surface layer to obtain a high-carburized layer, and then quench and temper at a low temperature. It is an ancient chemical heat treatment process to obtain a high-hardness martensite surface layer under the condition of high toughness in the core of the part, thereby improving the fatigue strength and wear resistance of the part. [0003] Carburizing has extremely high industrial significance and value. After carburizing the low-carbon steel parts, the core and matrix still maintain the composition and structure of low-carbon steel, so they still maintain good plasticity, high toughness and impact resistanc...

AI Technical Summary

Problems solved by technology

Obviously, this is an extremely difficult process. Therefore, traditional carburizing is a process with a long cycle, high cost and huge consumption.

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