Method and device for casting brake disc body and manufactured brake disc body

A brake disc and disc body technology, applied in the direction of brake discs, manufacturing tools, casting and molding equipment, etc., to reduce production costs, improve work efficiency, and ensure isotropic performance

Active Publication Date: 2014-11-19
CHINA MACHINERY IND PROD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The casting process of this patented invention has high efficiency, but it can only produce brake discs suitable for automobiles made of cast iron

Method used

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  • Method and device for casting brake disc body and manufactured brake disc body
  • Method and device for casting brake disc body and manufactured brake disc body
  • Method and device for casting brake disc body and manufactured brake disc body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Taking the high-speed train cast steel brake disc body (with an outer diameter of 610 mm and an inner diameter of 240 mm) as an example, it is suitable for mass production and high-efficiency casting process under the condition of ladle pouring Process such as figure 1 As shown, it includes the following steps in sequence:

[0075] (1) Use computer simulation software to simulate and analyze the casting process and casting device of the brake disc body, determine the positions of the gating system and the feeding system, the gating system and the feeding system are vertically stacked together, and the feeding system of the next layer The riser 2 of the shrinkage system replaces the gating system of the upper layer, and the center of the riser 2 is placed at the geometric center of the casting 1;

[0076] (2) According to the simulation analysis results of step (1), formulate the casting process of the brake disc body, adopt the method of introducing molten metal at the...

Embodiment 2

[0095] Taking the high-speed train cast steel brake disc body (with an outer diameter of 610 mm and an inner diameter of 240 mm) as an example, it is suitable for mass production and high-efficiency casting process under the condition of ladle pouring Process such as figure 1 As shown, it includes the following steps in sequence:

[0096] (1) Use computer simulation software to simulate and analyze the casting process and casting device of the brake disc body, determine the positions of the gating system and the feeding system, the gating system and the feeding system are vertically stacked together, and the feeding system of the next layer The riser 2 of the shrinkage system replaces the gating system of the upper layer, and the center of the riser 2 is placed at the geometric center of the casting 1;

[0097] (2) According to the simulation analysis results of step (1), formulate the casting process of the brake disc body, adopt the method of introducing molten metal at the...

Embodiment 3

[0116] Taking the high-speed train cast steel brake disc body (with an outer diameter of 600 mm and an inner diameter of 240 mm) as an example, the casting method and casting device are basically the same as those in Embodiment 1.

[0117] There are four series cast systems, each with six layers, that is, twenty-four brake disc bodies stacked vertically in series and poured at the same time. The height of a single casting is 75mm, and the distance between two adjacent layers in each series of cast systems is 0.9 times the height of the casting.

[0118] There is one riser 2 for each string cast system, which is in the shape of a cylinder with a diameter of 155 mm and a height of 900 mm. The bottom of the riser 2 corresponds to an ingate 9, and the center of the riser 2 and the center of the ingate 9 are both placed at a position 15 mm away from the geometric center of the casting 1. The flow velocity of the molten metal in the gate is equal to 30cm / s, and the rising velocity ...

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Abstract

The invention discloses a method and device for casting a brake disc body, and the brake disc body manufactured through the method and device. A casting system and a feeding system are perpendicularly stacked together in a cluster mode, the casting system on the upper layer is replaced with a feeder head on the lower layer, the center of the feeder head is arranged at any position from the inner side wall of a casting to the geometric center of the casting, a mode that metal liquid is introduced in a bottom returning mode is adopted to perform cluster casting, the metal liquid enters a cavity in the upper layer from the bottom of the lower layer, and after the cavity in the upper layer is filled with the metal liquid, the metal liquid enters a cavity in the upper layer from the feeder head on the lower layer. According to the casting method, sequential solidification and complete feeding of the casting can be achieved, defects of shrinkage holes, shrinkage porosity, sand holes, air holes, slag holes, cracks and the like are effectively prevented from appearing in the casting process of the casting, isotropy of performance of the casting is ensured, meanwhile, the method is suitable for large-scale production of the high-quality brake disc body under the large-ladle casting, the use rate of metal is improved by 30 percent to 60 percent, the production cost is reduced by 30 percent to 60 percent, and the working efficiency is improved by 40 percent to 60 percent.

Description

technical field [0001] The invention relates to a casting method, in particular to a casting method and device suitable for mass production of brake disc bodies of high-speed trains under ladle pouring conditions, and the brake disc bodies produced thereby. Background technique [0002] Brake discs are key components of high-speed trains and play an important role in train braking. Due to its complex and harsh working environment, it is inconvenient to maintain and replace. It is required that brake disc products must have stable quality and long service life. [0003] A large number of studies have shown that under the condition of a certain material, the main reason for the failure of the cast brake disc body is the casting defects such as shrinkage cavity, shrinkage porosity, sand hole and crack in the disc body. [0004] High-speed trains with a speed of more than 250km / h put forward higher requirements on the quality of the brake disc body, and the tolerance for c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08B22C9/20F16D65/12
Inventor 安朝阳
Owner CHINA MACHINERY IND PROD
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