Multi-element gas co-infiltration strengthening system and process thereof

Abstract

The invention discloses a multi-element gas co-infiltration strengthening system and a process thereof, and belongs to the technical field of workpiece heat treatment. According to the multi-element gas co-infiltration strengthening system and the process thereof, the problems of poor environmental protection, poor infiltration effect and single infiltration layer of traditional heat treatment aresolved. The multi-element gas co-infiltration strengthening system comprises a feeding unit, an air exchange unit, a heating pre-infiltration unit, a multi-element gas co-infiltration strengthening unit, a cooling protection unit and a discharge unit connected in sequence. By means of the multi-element gas co-infiltration strengthening system and a process thereof the, through the cooperation ofeach unit, a traditional acid anticorrosion process is replaced, so that the environmental protection is improved; through the air exchange unit, the air participation is avoided, so that the sufficiency of polyatomic infiltration is improved; through the combination of the heating pre-infiltration unit and microwave radiation, the structure of the surface of a lamp post is changed, so that the infiltration speed and depth of subsequent nitrogen, sulfur and chromium elements are improved; and in the strengthening treatment of multi-element gas co-infiltration, firstly, ammonia atmosphere nitriding treatment is adopted, and then gaseous carbon sulfur chromium complex is released by an accelerating infiltration ball B, so that the carburizing, sulphurizing and chromizing co-infiltration treatment is achieved, the structure of the infiltration layer is complex and diversified, and the hardness of the lamp post is improved.

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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