A multi-component gas co-infiltration strengthening system and its process

Abstract

The invention discloses a multi-component gas co-infiltration strengthening system and its technology, which belong to the technical field of workpiece heat treatment, and solve the problems of poor environmental protection, poor penetration effect and single infiltration layer in traditional heat treatment, including sequentially connected feeding units, ventilation unit, heating pre-infiltration unit, multi-component gas co-infiltration strengthening unit, cooling protection unit and discharge unit. The invention replaces the traditional acid anti-corrosion process through the cooperation of each unit, improves environmental protection, uses the ventilation unit to avoid air participation, and improves the sufficiency of polyatomic penetration. The heating pre-infiltration unit combines microwave radiation to change the surface structure of the lamp pole. Accelerate the infiltration speed and depth of subsequent nitrogen, sulfur and chromium elements. During multi-component gas co-infiltration treatment, first use ammonia atmosphere nitriding treatment, and then use infiltration promoting ball B to release gaseous carbon-sulfur-chromium complexes to achieve infiltration. Co-carburizing, sulfurizing and chromizing treatments make the structure of the carburized layer complex and diversified, and improve the surface hardness of the light pole.

Description

technical field [0001] The invention belongs to the technical field of workpiece heat treatment, and in particular relates to a multi-component gas co-infiltration strengthening system and its technology. Background technique [0002] All the equipment or production lines involving amino atmosphere in the heat treatment industry are box-type or pusher-type equipment or production lines, but such equipment or production lines cannot realize the heat treatment of large and super-large objects such as road light poles and communication towers. At the same time, the current low-temperature heat treatment usually adopts nitriding, soft nitriding, carbonization and other methods. These methods not only have a single infiltration element, a long infiltration time, a shallow infiltration layer, and poor comprehensiveness, but also easily lead to poor corrosion resistance, wear resistance and hardness of the treated parts. good. Contents of the invention [0003] The purpose of th...

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Problems solved by technology

[0002] All the equipment or production lines involving amino atmosphere in the heat treatment industry are box-type or pusher-type equipment or production lines, but such equipment or production lines cannot realize the heat treatment of large and super-large objects such as road light poles and communication towers.

At the same time, the current low-temperature heat treatment usually adopts nitriding, soft nitriding, carbonization and other methods. These methods not only have a single infiltration element, a long infiltration time, a shallow infiltration layer, and poor comprehensiveness, but also easily lead to poor corrosion resistance, wear resistance and hardness of the treated parts. good

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