Isothermal annealing device using gear blank forging waste heat

A technology of forging waste heat and isothermal annealing, used in heat treatment furnaces, manufacturing tools, heat treatment equipment, etc., can solve the problems of less application, less energy saving, low production efficiency, etc., and achieves a simple overall structure, which is conducive to cold finishing and production efficiency. high effect

Inactive Publication Date: 2011-08-17
JIANGSU PACIFIC PRECISION FORGING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This annealing method does not save energy significantly, and the production efficiency is not high, so it is rarely used

Method used

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  • Isothermal annealing device using gear blank forging waste heat
  • Isothermal annealing device using gear blank forging waste heat

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Embodiment Construction

[0013] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0014] figure 1 The shown isothermal annealing device utilizing waste heat from tooth blank forging includes a temperature control component, an annealing furnace and a transmission mechanism. The temperature control components include an infrared thermometer 3 installed outside the annealing furnace, a matching fan 2, and a thermocouple 4 installed on the annealing furnace. The transmission mechanism is a belt transmission, which includes a transmission belt 1 driven by a reduction mechanism 10, a mesh belt 7, and an idler roller 8 supporting the mesh belt 7. The annealing furnace is a flat rectangular box-type furnace, and the annealing furnace is located next to the forging press 11. The end of the inlet 5.1 faces the forging press 11, and the other end is provided with an outlet 5.2 inclined downward. The upper and lower inner wall...

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Abstract

The invention discloses an isothermal annealing device using gear blank forging waste heat. The device comprises a temperature control component, an annealing furnace and a driving mechanism, wherein the temperature control component comprises an infrared temperature measurer, a fan and thermocouples; the driving mechanism comprises a reducing mechanism, a driving belt, a mesh belt and supporting rollers; one side, facing a forging press, of the furnace body of the annealing furnace is provided with an inlet, and the other side of the furnace body is provided with an outlet which is downwardly and slantwise formed; a guide plate is arranged between the outlet and the mesh belt; heat radiation tubes are arranged in the furnace body; the driving belt is arranged between the forging press and the inlet of the furnace body; the mesh belt and the supporting rollers are arranged in the furnace body; the driving belt and the mesh belt are together driven by the reducing mechanism; and both the fan and the reducing mechanism are driven by matched variable frequency motors. Gear blanks which are just demoulded are cooled to a set annealing temperature through the fan before phase change and then are fed into the annealing furnace for isothermal annealing in sequence. The annealed gear blanks have more uniform hardness and structures, so that subsequent cold finishing and mechanical cutting are facilitated. In the invention, reheating is not required, so that the device has a good energy saving effect and high production efficiency.

Description

technical field [0001] The invention relates to a heat treatment device, in particular, the invention relates to an isothermal annealing device which utilizes the residual heat of tooth blank forging. Background technique [0002] Automobile gear is a kind of part that transmits relatively large amount of torque at high speed. Although this type of part is small in size, it has a particularly high strength requirement. The contemporary precision forging forming process is the best process for producing automobile transmission gear. The tooth blank formed by precision forging is not the final product, and it needs to be followed by cold finishing and mechanical cutting. Due to the dense structure and high hardness of the tooth blank formed by forging and pressing, the difficulty of subsequent processing also increases accordingly. The annealing process is one of the most effective and economical processes to eliminate the stress of the tooth blank and reduce the hardness. Af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/32C21D8/00
Inventor 沐桂萍赵红军张立平毛宽亮
Owner JIANGSU PACIFIC PRECISION FORGING
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