I-type integral oil ring wire working method and equipment for piston ring industry

Abstract

The invention relates to a wire rod processing method, a processing method for an I-type integral oil ring wire rod used in the piston ring industry: rolling: the raw material wire rod is linearly routed through the rolling equipment, and simultaneously rolled on the four sections of the upper, lower, left, and right sides to obtain the obtained product. Cross-section shape is required; annealing: after rolling, the wire rod is linearly routed through an annealing furnace for annealing, and then rolling and annealing are performed after annealing, and this is repeated 3-8 times to obtain a type I integral oil ring wire rod without quenching and tempering. The present invention adopts rolling in four directions at the same time, rolling directly according to the required cross-sectional shape, reasonable distribution of rolling times and rolling volume, ensuring shape requirements, completely avoiding wire bending, oxidation and decarburization, and matrix hardness and plasticity reaching It is a quenching and tempering treatment method based on certain technical requirements, and the product design has high precision in size and shape, excellent quality, and low cost, which can meet the needs of various shapes in large quantities.

Description

Technical field: [0001] The invention relates to a wire rod processing method, in particular to a wire rod processing method in the piston ring industry, and also provides its equipment. Background technique: [0002] The wire used for I-type integral oil rings for motor vehicle piston rings has complex cross-sectional shapes and requires high dimensional accuracy. At present, only a few foreign manufacturers can produce such products, and their production investment is huge, and the product prices are expensive. Neither the shape nor the quality can meet the requirements, and this type of product cannot be produced, so it is difficult to make a breakthrough in technology. Invention content: [0003] The purpose of the present invention is to overcome the above-mentioned disadvantages and provide a processing method for the I-type integral oil ring wire used in the piston ring industry. The method is simple in production, low in cost, and has excellent product shape and qu...

AI Technical Summary

Problems solved by technology

[0002] The wire used for I-type integral oil rings for motor vehicle piston rings has complex cross-sectional shapes and requires high dimensional accuracy. At present, only a few foreign manufacturers can produce such products, and their production investment is huge, and the products are expensive. It cannot meet the requirements in terms of shape or quality, and it is impossible to produce such products, and it is difficult to make breakthroughs in technology

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