Steel plate for air conditioner compressor and production method thereof

Abstract

The invention discloses a steel plate for an air conditioner compressor. The steel plate comprises the following chemical components in percentage by weight: 0.04%-0.075% of C, less than or equal to 0.05% of Si, 0.10%-0.30% of Mn, less than or equal to 0.025% of P, less than or equal to 0.015% of S, 0.01%-0.050% of Als and the balance of Fe and inevitable impurity elements, a stress-strain curve of a steel plate material has a yield platform, and the yield strength is 210-290 MPa. The production process of the steel plate comprises the steps of slab hot continuous rolling, flattening and acid pickling, in the flattening process, a flattening unit adopts a constant rolling force mode, the rolling force is required to be 1400-1700 KN, the inlet tension is 60-80 kN, and the outlet tension is 190-300 kN. The problem that a main shell prepared by a pickling plate for the air conditioner compressor is poor in go gauge is solved, and the main shell preparation requirement and the rotor and stator assembly requirement of the air conditioner compressor are met.

Description

technical field [0001] The invention belongs to the technical field of steel rolling and plate application in the metallurgical industry, and in particular relates to a steel plate for an air-conditioning compressor and a production method thereof. Background technique [0002] The main components of the air conditioner compressor include the main shell, the stamping parts of the end cover, the rotor stator inside the shell, and related pipelines. The production process of the main shell of the air-conditioning compressor: hot-rolled pickling plate slitting coil (cut to length according to the model) → uncoiling → disc looper → coiled tube → high-frequency welded pipe → laminar flow cooling → welded pipe cut to length ( 6-9m range) → cut the main shell to length (according to the model) → initial expansion tube → main shell fracture cutting → punching → resistance welding bracket → brazing copper tube → fine expansion (twice) →General inspection. [0003] In the preparatio...

AI Technical Summary

Problems solved by technology

If the inner diameter is lower than the lower limit, the inspection of the general gauge is not smooth, the general gauge is unqualified, or the rate of defective products of the one-time general gauge is high, which affects the production efficiency of the production line

If the inner diameter deviates from the upper limit, although the general specification is qualified, the stator pasted on the inner wall of the main shell is easy to slip and dislocate when the movement is assembled later, and there will be offset friction between the rotor / stator, resulting in a safety accident

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