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Spoke casting mold, vacuum die-casting forming system and spoke manufacturing method

A mold and spoke technology, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve the problems of gas involved in castings, fast filling speed, porosity defects, etc., to reduce gas content, reduce possibility, and improve vacuum degree of effect

Active Publication Date: 2022-08-05
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the purpose of the present invention is to provide a spoke casting mold, a vacuum die-casting forming system and a spoke manufacturing method, aiming to solve the problem of gas being involved in the casting due to the fast filling speed of the traditional spoke die-casting forming system. The problem of forming porosity defects during welding

Method used

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  • Spoke casting mold, vacuum die-casting forming system and spoke manufacturing method
  • Spoke casting mold, vacuum die-casting forming system and spoke manufacturing method
  • Spoke casting mold, vacuum die-casting forming system and spoke manufacturing method

Examples

Experimental program
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Effect test

Embodiment 1

[0057] This embodiment provides a spoke with 10 spokes, such as Image 6 Show. The aluminum alloy spoke alloy ingredients are Al-SI-MG system pressure cast aluminum alloy. The specific manufacturing method is:

[0058] S101: Design die -casting pouring system, such as figure 1 Show, place the wheel -transmitted casting mold vertically, set the pouring system at the outer edge of the lower semi -semi -semi -semi -semi -semi -semi -semi -semi -semicircular bars. One spoke tinching cavity 11, aluminum liquid can enter the mold -type cavity 1 through 6 internal watering tract 23. The outer end of the inner pouring road is connected to the 22 of the horizontal pouring road. The crossway 22 passes through the main watering road 21 and the ingredients on the ingredients on the 31st of the Shipping Room 31. The aluminum liquid "from bottom to top" is a unidirectional flow, and the vacuum valve 41 at the top through the overflow slot 24 is passed through the splittering cavity 13. The thick...

Embodiment 2

[0064] This embodiment provides a spoke with 12 spokes. The aluminum alloy spoke alloy composition is Al-SI-MG system pressure cast aluminum alloy. The specific manufacturing method is:

[0065] S201: Design die -casting pouring system, such as figure 2 Show, place the wheel -transmitted casting mold vertically, and set the pouring system at the outer edge of the lower semicircle of the lower semicircle. For casting cavity, aluminum liquid can enter the mold -shaped cavity of the wheel spoke through 6 internal lanes. The outer end of the inner watering trail is connected to the horizontal lane. The aluminum liquid "from bottom to top" is a unidirectional flow, and the vacuum valve at the top through the overflow slot is passed on the top of the spokes. The thickness of the design of the internal lane is 1.2mm, and the total cross -sectional area of ​​the internal water tract meets the maximum flow rate of the aluminum fluid of the inner watering tract is 40m / s; the number of overf...

Embodiment 3

[0071] The wheel spoke of this embodiment is a spoke with 8 spokes. Aluminum alloy wheel spoke alloy composition is Al-Mg-SI system pressure cast aluminum alloy. The specific manufacturing method is:

[0072] S301: Design die -casting pouring system, such as image 3Show, the wheel -transmitted casting mold is placed vertically, and the pouring system is set on the outer edge of the lower semicircle of the lower semicircle. In the casting cavity, aluminum liquid can enter the mold -shaped cavity of the wheel spoke through 4 internal lanes. The outer end of the inner watering trail is connected to the horizontal lane. The aluminum liquid "from bottom to top" is a unidirectional flow, and the vacuum valve at the top through the overflow slot is passed on the top of the spokes. The thickness of the design of the internal lane is 1.4mm, and the total cross -sectional area of ​​the internal water track meets the maximum flow rate of the aluminum fluid of the inner watering tract is 25m / ...

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Abstract

The invention belongs to the field of metal casting machining, and discloses a spoke casting mold, a vacuum die-casting forming system and a spoke manufacturing method.The spoke casting mold comprises a mold cavity and a pouring system; the mold cavity is matched with the spoke in shape and comprises a first spoke casting cavity, a second spoke casting cavity and an annular spoke edge casting cavity; the pouring system comprises a main pouring gate, a transverse pouring gate communicated with the main pouring gate, inner pouring gates communicated with the transverse pouring gate and the spoke edge casting cavity and an overflow groove, the transverse pouring gate is in an inferior arc shape and arranged on the periphery of the spoke edge casting cavity, the number of the inner pouring gates is equal to that of the first spoke casting cavities, each inner pouring gate directly faces one first spoke casting cavity, and the overflow groove is communicated with the transverse pouring gate. The overflow groove is formed in the outer edge of the side, away from the cross gate, of the spoke edge casting cavity. The invention provides a pouring system for unidirectionally flowing from one end of a spoke to the other end of the spoke, so that gas in a cavity can be conveniently expelled and pumped away in the mold filling process of molten metal, the vacuum degree in the cavity is improved, the defect of casting air holes is eliminated, and the subsequent welding process with a rim is facilitated.

Description

Technical field [0001] The present invention is the field of metal casting and processing technology. It is more specific that it involves a rotary casting mold, a vacuum die -casting system, and a rotation -spoke manufacturing method. Background technique [0002] The wheel is an important safety part of the car load and the main motion component. At present, the methods of making aluminum alloy hubs are mainly forging and casting. Among them, low -voltage casting technology has developed more mature, and the produced aluminum alloy wheels account for 80 % of the output of cast aluminum alloy wheels in my country. The existing aluminum alloy wheels are mostly overall structures, but complex shapes and large -sized automotive wheels can cause low -voltage casting to produce shrinkage, shrinkage, pores and other casting defects at the junction of wheel spokes and wheels. The charging speed of aluminum fluid is slow, the mold is slow, and the production efficiency is low. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/22B22D1/00B22D17/14B22D17/20B22D17/00
CPCB22D17/22B22D17/145B22D17/203B22D17/2272B22D1/00B22D17/00Y02T10/86
Inventor 吴树森朱训明李建宇陆仕平吕书林刘建平郭威
Owner HUAZHONG UNIV OF SCI & TECH
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