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Manufacturing method of gear shaft

A manufacturing method and a gear shaft technology, applied in the field of casting, can solve the problems of low utilization rate of raw materials, insufficient structural strength, and high production cost, and achieve the effects of improving production efficiency, high structural strength, and improving utilization rate.

Inactive Publication Date: 2019-03-26
徐州敏思机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, whether it is a steel gear shaft or an aluminum gear shaft, it will be damaged due to impact. Once the gear shaft is damaged, the damage to the gear transmission system is self-evident, and the existing gear shaft The utilization rate of raw materials in the casting is not high, the production cost is high, and the structural strength is not enough.

Method used

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  • Manufacturing method of gear shaft

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Effect test

Embodiment 1

[0017] The present invention proposes a manufacturing method of a gear shaft. The manufacturing method of the gear shaft includes the following steps: S10: heating the billet, first heating the aluminum billet to melt the billet into a molten metal solution; S20: pre-heating the mold Heating, the preheating temperature is 350°C, keep for 0.6 hours, and lay a layer of release agent in the mold. S30: Inject the aluminum metal solution into the preheated mold, and use a casting machine to die-cast the mold, keeping it at 40SS; S40: Use cooling water to spray and cool the mold, and the cooling time is 10S; S50: Die-cast the gear shaft Demolding treatment, so that the gear shaft casting is released from the lower mold together with the upper mold, and then the gear shaft casting is released from the upper mold by using the ejector mechanism; S60: After the cold gear shaft casting is cooled naturally, remove the burrs.

Embodiment 2

[0019] The present invention proposes a manufacturing method of a gear shaft. The manufacturing method of the gear shaft includes the following steps: S10: heating the billet, first heating the aluminum billet to melt the billet into a molten metal solution; S20: pre-heating the mold Heating, the preheating temperature is 440°C, keep it for 1.2 hours, and lay a layer of release agent in the mold; S30: inject the aluminum metal solution into the preheated mold, and use the casting machine to die-cast the mold, keep 50S; S40: Use cooling water to spray and cool the mold, and the cooling time is 25S; S50: Remove the gear shaft from the lower mold along with the upper mold, and then use the ejector mechanism to remove the gear shaft. The shaft casting is released from the upper mold; S60: After the cooling gear shaft casting is naturally cooled, remove the burrs.

Embodiment 3

[0021] The present invention proposes a manufacturing method of a gear shaft. The manufacturing method of the gear shaft includes the following steps: S10: heating the billet, first heating the aluminum billet to melt the billet into a molten metal solution; S20: pre-heating the mold Heating, the preheating temperature is 400°C, keep it for 0.9 hours, and lay a layer of release agent in the mold; S30: inject the aluminum metal solution into the preheated mold, and use the casting machine to die-cast the mold, keep 45S; S40: Use cooling water to spray and cool the mold, and the cooling time is 15S; S50: Remove the gear shaft from the lower mold together with the upper mold, and then use the ejector mechanism to remove the gear shaft The shaft casting is released from the upper mold; S60: After the cooling gear shaft casting is naturally cooled, remove the burrs.

[0022] Due to the adoption of the above technical solution, the present invention has the following advantages: the...

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Abstract

The invention discloses a manufacturing method of a gear shaft. The manufacturing method is characterized by comprising the following steps: heating a billet, that is, firstly heating an aluminum billet to allow the aluminum billet to melt into a metal liquid in molten state; preheating a die at 350-440 DEG C for 0.6-1.2h and spreading a layer of a release agent in the die; pouring the aluminum liquid into the preheated die, subjecting the die to pressure casting for 40-50s by using a press-casting machine; spraying the die with cooling water for cooling the die for 10-25s; releasing the gearshaft from the die, that is, releasing a gear shaft casting, together with an upper die, from a lower die and then using an ejection mechanism to release the gear shaft casting from the upper die; andremoving burrs after the gear shaft casting cools off naturally. The forging method improves the utilization rate of aluminum, reduces the manufacturing cost of the gear shaft, increases the castingprecision and achieves high structural strength.

Description

technical field [0001] The invention relates to the field of casting, in particular to a method for manufacturing a gear shaft. Background technique [0002] As one of the important components in the vehicle driving system, the gear shaft is also a security device with high requirements, and it carries the transmission force of the gear. In the prior art, whether it is a steel gear shaft or an aluminum gear shaft, it will be damaged due to impact. Once the gear shaft is damaged, the damage to the gear transmission system is self-evident, and the existing gear shaft The utilization rate of raw materials in the casting is not high, the production cost is high, and the structural strength is not enough. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the present invention provides a manufacturing method of a gear shaft. The forging method improves the utilization rate of aluminum, reduces the production cost of the gear shaft, imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/00
CPCB22D17/00
Inventor 邓永建
Owner 徐州敏思机电科技有限公司