Machining method and device for low-carbon and medium-carbon steel car clutch part

A processing method and technology of processing equipment, applied in heat treatment equipment, manufacturing tools, furnace types, etc., can solve problems such as poor product life and safety, and achieve the goal of preventing product oxidation and decarbonization, solving technical problems, and improving industry competitiveness. Effect

Inactive Publication Date: 2019-05-07
ZHEJIANG 81 PRECISION MACHINERY CO LTD +1
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  • Application Information

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Problems solved by technology

The traditional quenching and tempering treatment cannot avoid the problem of the structure of the core of the product and the cracking of the

Method used

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  • Machining method and device for low-carbon and medium-carbon steel car clutch part
  • Machining method and device for low-carbon and medium-carbon steel car clutch part
  • Machining method and device for low-carbon and medium-carbon steel car clutch part

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Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, the method for processing low-carbon steel automobile clutch parts is characterized in that it at least includes the following steps:

[0038] Blanking, using medium carbon steel to make bars for forging;

[0039] Forging, the blank is directly forged into the outline of the part, the cross-section has at least one step and its wall thickness is 5-20mm, the product size section (wall thickness) is between 5-20mm, and it can be fully hardened without free Ferrite, troostite, and tempered metallographic structure have no free ferrite and no cracks. The product has good comprehensive mechanical properties and fully meets the requirements of service conditions;

[0040] Heat treatment, place the product on the mesh belt of the main furnace, the product enters the main furnace for heating and austenitization, select the austenit...

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Abstract

The invention discloses a machining method of a low-carbon and medium-carbon steel car clutch part. The method solves the technical problem that for a product center structure state and a product quenching process, cracking happens. The method at least comprises following steps of forging, wherein a workblank is directly forged to the outline of the part, and the section is provided with at leastone ladder, and the wall thickness ranges from 5 to 20 mm; heat treatment, wherein the product is placed on a main furnace mesh belt, the product enters a main furnace to be heated and austenitized, the austenitizing temperature of 820 to 860 DEG C is selected for heating the product, heat preservation is carried out about 40 to 90 minutes, the product is conveyed to a brine tank through the meshbelt, quenching is carried out, after quenching, the product enters a cleaning tank, and the product continuously enters a tempering furnace to be subjected to tempering along with mesh belt transmission; and nondestructive examination, wherein the product subjected to heat treatment is subjected to flaw detection through a nondestructive examination device, cracks on the product crack sensitive size segment can be avoided, the product comprehensive mechanical property is good, and the use condition needs can be completely met.

Description

technical field [0001] The invention relates to the technical field of auto parts design, in particular to a method and equipment for processing clutch parts of medium and low carbon steel auto parts. Background technique [0002] The quenching and tempering heat treatment process of automobile clutch parts usually uses a continuous electric furnace to heat the product. The heating temperature adopts the austenitizing temperature, and water or oil is often used for quenching treatment, and then high-temperature tempering treatment under different temperature conditions according to the technical requirements of the product . For products processed with medium and low carbon steel materials, the wall thickness range of 6-12mm is the most sensitive size segment for cracks. The traditional quenching and tempering treatment cannot avoid the core structure of the product and the cracking of the product during the quenching process, and there are always hidden dangers, which have...

Claims

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Application Information

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IPC IPC(8): C21D1/18C21D1/74C21D1/63C21D9/00
Inventor 刘荣格刘美冬夏克浪
Owner ZHEJIANG 81 PRECISION MACHINERY CO LTD
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