Processing method of spring steel bow belt

A processing method and technology of spring steel, applied in the field of spring steel bow belt, can solve the problems of low strength of spring steel bow belt, reduce the rotation speed of double twist machine, increase production cost, etc., achieve excellent organizational structure, reduce the risk of cracking, Guaranteed rotation speed effect

Active Publication Date: 2016-02-03
湖北三江航天江北机械工程有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The strength of this conventional spring steel bow belt is not high, easy to damage, and the average service life is only 2 to 3 months, and if the broken bow belt is not handled in time, it will often damage the equipment, reduce the rotation speed of the double twisting machine, and increase the production cost of the enterprise

Method used

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  • Processing method of spring steel bow belt
  • Processing method of spring steel bow belt
  • Processing method of spring steel bow belt

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] A processing method for a spring steel bow belt, characterized in that it comprises the following steps:

[0027] Step 1: Put the molten steel into the existing spring steel bow belt mold (leave a margin of 0.3-0.5mm in the thickness direction of the mold when blanking, on the one hand, this margin is used to provide sufficient grinding allowance, on the other hand The decarburization layer that may be produced on the surface can be removed), and after cooling, a spring steel bow strip blank is formed;

[0028] Step 2: Use a punching machine (350T hydraulic punching machine) to punch out the central groove 1 of the bow strap on the blank of the spring steel bow strap (the punched out central groove 1 of the strap is used to strengthen the strap), and then use a drilling machine to punch the blank of the spring steel bow strap Drill the w...

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Abstract

The invention discloses a method for processing a spring steel arch belt. The method comprises the following steps: 1) feeding molten steel to a spring steel arch belt mold; 2) stamping an arch belt center groove from a spring steel arch belt blank; 3) coating a non-decarburization coating on the spring steel arch belt blank, heating to 840-870 DEG C, carrying out heat preservation for 30-40 minutes, and then quenching and cooling the spring steel arch belt blank coated with the non-decarburization coating in quenching oil at 75-85 DEG C for 4-6 minutes; 4) carrying out tempering treatment on the spring steel arch belt blank which is quenched and cooled; 5) carrying out cooling treatment of a nitrate bath on the tempered spring steel arch belt blank; and 6) polishing the top surface and the bottom surface of the spring steel arch belt blank cooled by the nitrate bath through a grinding machine, so as to form a spring steel arch belt product. By adopting the method, the strength of the spring steel arch belt is improved, the service life is prolonged, and the rotation speed of a double twister is ensured.

Description

technical field [0001] The invention relates to a spring steel bow belt in a double twist machine for twisting steel cords, in particular to a processing method for a spring steel bow belt. Background technique [0002] With the rapid development of the automobile industry, the demand for double-twisting machine equipment for the production of tire steel cord is increasing. When the double twisting machine twists the steel cord, the rotating disk rotates at a high speed, and the steel cord is thrown out due to the centrifugal force. At this time, a high-strength bow belt is required to restrain the steel cord. Existing spring steel bow bands are manufactured by conventional processing methods, namely through milling and heat treatment. The strength of this conventional spring steel bow belt is not high, easy to damage, and the average service life is only 2 to 3 months, and if the broken bow belt is not handled in time, it will often damage the equipment, reduce the rotatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D8/06C21D6/00
Inventor 任晗赖银燕张文朱国刚
Owner 湖北三江航天江北机械工程有限公司
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