Automobile brake disc casting die and technology

A technology for casting molds and brake discs, which is applied in the field of brake disc casting, can solve problems such as shrinkage porosity and wrong box, and achieve the effects of preventing air holes, good air permeability, and uniform, smooth and thorough impurity discharge.

Active Publication Date: 2016-05-11
杨合军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide an effective solution to the problems of wrong box, box expansion, pores / trachoma, shrinkage and other problems in the casting process, to improve the casting yield, reduce the casting cost, and reduce the Labor-intensive automobile brake disc casting mold and process

Method used

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  • Automobile brake disc casting die and technology
  • Automobile brake disc casting die and technology
  • Automobile brake disc casting die and technology

Examples

Experimental program
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Effect test

Embodiment 2

[0043] There are a plurality of reinforcing and fixing parts 105 fixed on the outer side of the lower sand mold 3 on the circumference of the upper tooling 1 , and the reinforcing and fixing parts 105 are arranged correspondingly to the cavity 302 . Specifically, the reinforcing and fixing parts 105 are eight downward channel steels, and of course other structures can also be used. The reinforcing and fixing parts 105 are placed outside the sand mold of the corresponding cast workpiece, and the thinnest part of the lower sand mold 3 prevents the casting The phenomenon of box expansion occurs.

Embodiment 3

[0045] In the middle of the upper sand mold 2, there are several upper sand mold clamping holes 202. It is very convenient to take and place the upper sand mold 2 through the upper sand mold clamping holes 202 with fingers, and it is easy to grasp the parallelism when putting the lower sand mold 2. , is conducive to ensuring the precision of the casting, and will not damage the profile of the upper sand mold 2, and the upper sand mold clamping hole 202 can also function when the workpiece is slowly exhausted.

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Abstract

The invention discloses an automobile brake disc casting die and technology. A sand mold is fixed between an upper tool and a lower tool and comprises upper sand mold bodies and a lower sand mold body. A plurality of cavities are formed in the upper side of the lower sand mold body. The upper sand mold bodies are fixed in the cavities. The upper tool is provided with an upper sand mold fixing mechanism used for downwards pressing the upper sand mold bodies. A molten iron channel communicating with the bottoms of the cavities is formed in the bottom of the lower sand mold body. A molten iron channel bottom tray for sealing the molten iron channel is arranged on the lower tool. Exhaust gaps are formed between the circumferences of the upper portions of the upper sand mold bodies and the cavities. Molten iron is directly poured into the molten iron channel through a sprue gate in the middle of the lower sand mold body and then enters the cavities from bottom to top, the molten iron flows from bottom to top at a constant speed, and air and some impurities in the cavities are directly discharged upwards through the exhaust gaps. The casting die has the beneficial effects that the casting yield is increased, the casting cost is reduced, and the labor intensity is lowered.

Description

technical field [0001] The invention belongs to the technical field of brake disc casting, and in particular relates to an automobile brake disc casting mold and process. Background technique [0002] The brake disc is a vulnerable part of the automobile braking system. With the rapid development of the automobile industry, the market demand for the brake disc is huge. At present, the brake disc blank casting line is prone to problems such as wrong box, box expansion, air holes, sand holes, shrinkage and other problems when casting brake disc blanks. Loose / low utilization rate of molten iron / resulting in low casting yield and high casting cost. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide an effective solution to the problems of wrong box, box expansion, pores / trachoma, shrinkage and other problems in the casting process, to improve the casting yield, reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/20B22C9/22
CPCB22C9/02B22C9/20B22C9/22
Inventor 杨合军
Owner 杨合军
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