Steam and gas tufftriding integrated treatment device and treatment method

Abstract

The invention discloses a steam and gas tufftriding integrated treatment device which comprises an integrated treatment furnace, a placement frame arranged in a suspended mode is installed in the integrated treatment furnace, and workpieces needing steam treatment and gas tufftriding treatment are correspondingly placed in the placement frame. A heating device, a pressurizing device and a cooling device are further correspondingly arranged in the integrated treatment furnace, a gas inlet pipe is further connected and mounted on the integrated treatment furnace, and the gas inlet pipe is correspondingly connected with a water vapor pipeline, an N2 gas pipeline, an NH3 gas pipeline and a CO2 gas pipeline in parallel. According to the integrated device and method, the overall production efficiency can be improved by 80%, the electric energy consumption can be reduced by 30%, the investment can be reduced by 50%, high-precision workpiece deformation can meet the requirements of customers, and process control is easy, convenient, stable and reliable.

Description

technical field [0001] The invention relates to the technical field of high-precision powder metallurgy treatment, in particular to a steam and gas soft nitriding integrated treatment device and a treatment method. Background technique [0002] In the prior art, the steam treatment and gas nitriding treatment of metallurgical parts usually require two kinds of equipment (steam treatment furnace and gas nitriding furnace) to complete. Steam treatment is carried out, then the furnace is cooled to 480 ℃ and released into the atmosphere, and then reloaded into the nitriding furnace after cooling, and the temperature is re-heated for gas soft nitriding treatment. After the treatment is completed, the furnace is cooled to 500 ℃ and released into the atmosphere; After the steam treatment of the workpiece is completed, the furnace needs to be cooled to room temperature and then reloaded into the nitriding furnace for heating treatment, so the process takes a long time, the energy lo...

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Problems solved by technology

[0002] In the prior art, two types of equipment (steam treatment furnace and gas nitriding furnace) are usually required to complete the steam treatment and gas nitriding treatment of metallurgical parts. Carry out steam treatment, then cool the furnace to 480°C and release it into the atmosphere, then reinstall the furnace into the nitriding furnace after cooling, and then heat up again for gas soft nitriding treatment, after the treatment is completed, the furnace is cooled to 500°C and released into the atmosphere; After the steam treatment of the workpiece, the furnace needs to be cooled to room temperature and then reloaded into the nitriding furnace to heat up again, so the process takes a long time, the loss of energy consumption is large, and the deformation of the workpiece is large.

[0003] And the existing technical scheme needs 2 pieces of equipment, and the cost is relatively large. In addition, when the nitriding furnace used for nitriding the workpiece in the prior art places the workpiece, if the workpiece is large, it cannot be guaranteed that all parts of the workpiece can be Nitriding or steam treatment, resulting in unsatisfactory treatment efficiency and treatment quality

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