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Manufacturing method of ventilated brake disc

A manufacturing method and technology for brake discs, which are applied to manufacturing tools, brake discs, casting and molding equipment, etc., can solve problems such as pores in castings, and achieve the effects of improving yield, reducing production costs, and reducing the probability of pores.

Inactive Publication Date: 2021-04-16
LONGKOU CITY HEYI MACHINERY COMPONENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for manufacturing a ventilated brake disc, which solves the problem of air holes on castings in the production process of the ventilated brake disc in the prior art

Method used

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  • Manufacturing method of ventilated brake disc
  • Manufacturing method of ventilated brake disc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 and figure 2 Shown, a kind of manufacture method of ventilated brake disk comprises the following steps,

[0028] Step 1, making the first mold and the second mold 1 of the same shape as a round cake, opening a cylindrical groove 2 on both sides of the second mold 1, and opening a strip-shaped through hole on the bottom surface of the groove 2 , the through holes are evenly distributed on the circumference of the second mold 1; a cylindrical central groove is provided on the bottom surface of a groove 2; A heat sink can be formed on the brake disc to facilitate heat dissipation. The through holes include long through holes 11 and short through holes 12 , and the long through holes 11 and the short through holes 12 are distributed at intervals.

[0029] Step 2, filling the clay green sand into the pouring box, and putting the first mold and two pipe molds into it, and compacting the clay green sand;

[0030] Step 3, open the pouring box, take out th...

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PUM

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Abstract

The invention provides a manufacturing method of a ventilated brake disc. The manufacturing method comprises the following steps that 1, a cake-shaped first mold and a cake-shaped second mold with the same shape are manufactured; 2, a pouring box is filled with clay green sand, the pouring box is put into the first mold and two pipeline molds, and the clay green sand is compacted; 3, the first mold and the pipeline molds are taken out, the second mold is placed in a pouring cavity, and the pouring box is closed; 4, nitrogen is blown into the pouring cavity; 5, molten iron is poured into the pouring cavity through a pouring channel, and air is exhausted through an air channel in the pouring process; and 6, a blank is machined into the brake disc. The nitrogen is blown into the pouring cavity before pouring, so that air in the pouring cavity can be exhausted. According to the manufacturing method of the ventilated brake disc, the problem that in the prior art, air holes are formed in a casting in the production process of the ventilated brake disc is solved, the service life of the brake disc can be prolonged, the brake stability is improved, and the application range of the brake disc is enlarged.

Description

technical field [0001] The invention relates to the technical field of automobile brake accessories, in particular to a method for manufacturing a ventilated brake disc. Background technique [0002] Disc brakes consist of a brake disc attached to the wheel and a brake caliper on the edge of the disc. When braking, the high-pressure brake oil pushes the brake block to clamp the brake disc to produce a braking effect. Disc brakes are divided into ordinary disc brakes and ventilated disc brakes. Ventilated disc brakes drill many circular ventilation holes on the disc surface, or cut out ventilation slots or prefabricated rectangular ventilation holes on the end face of the disc. Ventilated disc brakes use airflow to provide better cooling than ordinary disc brakes. [0003] Usually, gray cast iron brake discs are produced by clay green sand casting method. Gas is easy to be generated during the casting process, resulting in air holes in the brake disc castings, resulting in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C9/02B22D27/00B22D27/15F16D65/12
Inventor 闫彪由德伟王文龙宋立文刘晓杰
Owner LONGKOU CITY HEYI MACHINERY COMPONENTS CO LTD