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One-box four-type casting process of brake disk

A casting process and brake disc technology, which is applied in the field of automobile brake system production, can solve the problems that the artificial casting process cannot meet the needs of the factory, the pouring system has poor slag resistance ability, and cannot meet modern production, so as to reduce air pollution, Good for slag blocking and high yield

Active Publication Date: 2010-05-12
YANTAI WINHERE AUTO PART MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Manual molding: clay sand wet mold, one box for one mold, cupola smelting, simple process, low yield, low production efficiency, high labor intensity, low casting process yield, unstable mechanical properties, high cost, It has been unable to meet the needs of modern production and has been gradually eliminated by some large factories, but some small workshop-style factories still adopt this production method
[0004] (2) Mechanized modeling: With the development of the market economy and the shortage of labor resources, the casting process of artificial molding cannot meet the needs of factories. Many professionals and research institutes have developed mechanized molding to replace manual molding.
At present, most factories use the Z145 molding machine and horizontal parting production line. This process has improved production efficiency and process yield compared with manual molding, but it also has the following disadvantages: ① Poor slag resistance of the pouring system, trachoma Lots of waste
② The pattern plate is fixed, the mold replacement is difficult, and it is not suitable for small batch production
③Although the production efficiency has been improved compared with manual modeling, it still cannot reach the production efficiency of foreign advanced factories

Method used

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  • One-box four-type casting process of brake disk
  • One-box four-type casting process of brake disk
  • One-box four-type casting process of brake disk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: its processing step is:

[0065] (1) Sand treatment process: The sand mixing ratio used is 3 parts of new sand, 91 parts of old sand, 1 part of bentonite, 4 parts of coal powder, 0.8 part of water, and the sand mixing time is 3.5 minutes.

[0066] (2) Molding process: Turn on the automatic static pressure molding line, use a box of four-type special molds for brake discs, and adjust the pressure of the molding machine to 8Mpa for molding.

[0067] (3) Smelting process: open the double smelting of the cupola furnace and the electric furnace, so that the temperature of the molten iron reaches 1550°C and is released from the furnace.

[0068] (4) Pouring process: start the automatic pouring vehicle for pouring, the pouring temperature is 1490°C, and the pouring time is 15 seconds.

[0069] (5) Desanding and shot blasting process: After pouring, it is automatically transferred to the cooling line, from the cooling line to the vibrating desanding machine for d...

Embodiment 2

[0070] Embodiment 2: its processing step is:

[0071] (1) Sand treatment process: The sand mixing ratio used is 4 parts of new sand, 90 parts of old sand, 2 parts of bentonite, 3 parts of coal powder, 0.9 part of water, and the sand mixing time is 4 minutes.

[0072] (2) Molding process: Turn on the automatic static pressure molding line, use a box of four-type special molds for brake discs, and adjust the pressure of the molding machine to 9Mpa for molding.

[0073] (3) Smelting process: open the double smelting of the cupola furnace and the electric furnace, so that the temperature of the molten iron reaches 1550°C and is released from the furnace.

[0074] (4) Pouring process: open the automatic pouring vehicle for pouring, the pouring temperature is 1470°C, and the pouring time is 12 seconds.

[0075] (5) Desanding and shot blasting process: After pouring, it is automatically transferred to the cooling line, from the cooling line to the vibrating desanding machine for des...

Embodiment 3

[0076] Embodiment 3: its processing step is:

[0077] (1) Sand treatment process: The sand mixing ratio used is 5 parts of new sand, 89 parts of old sand, 3 parts of bentonite, 2 parts of coal powder, and 1 part of water, and the sand mixing time is 5 minutes.

[0078] (2) Molding process: Turn on the automatic static pressure molding line, use a box of four-type special molds for brake discs, and adjust the pressure of the molding machine to 9Mpa for molding.

[0079] (3) Smelting process: open the double smelting of the cupola furnace and the electric furnace, so that the temperature of the molten iron reaches 1550°C and is released from the furnace.

[0080] (4) Pouring process: start the automatic pouring vehicle for pouring, the pouring temperature is 1450°C, and the pouring time is 8 seconds.

[0081] (5) Desanding and shot blasting process: After pouring, it is automatically transferred to the cooling line, from the cooling line to the vibrating desanding machine for d...

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Abstract

The invention discloses a one-box four-type casting process of a brake disk. The process comprises the following technological steps: a sand processing procedure adopts a chassis rotary type rotor sand mixing machine, sand mixing is carried out according to a sand mixture ratio, the sand mixing efficiency is 120 tons / hour, and the sand mixing time is 3-5 minutes; a moulding procedure adopts a static-pressure production line with double-host wiring for moulding and a special mould of a one-box four-type brake disk, the production efficiency is 180 boxes / hour, and the moulding pressure intensity is 8-10MPa; a smelting procedure adopts a cupola and an electric furnace for double smelting, the pouring temperature is 1450-1490 DEG C, and 0.3% of degeneracy-resisting silicon-barium nucleating agent is added before the furnace; a pouring procedure adopts an automatic pouring truck for pouring, and the pouring time is 8-15 seconds; and a desanding and shot blasting procedure adopts a vibration type desanding machine for desanding, and then a stepping type suspended connection shot cleaning chamber is used for cleaning the brake disk. The production process has the characteristics of high rate of finished products, high technological casting yield, high mechanization degree, short production period, high production efficiency, small energy consumption and the like.

Description

technical field [0001] The invention relates to the technical field of automobile brake system production, in particular to the casting process of brake discs for cars. 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 traditional car brake disc casting process has the following types: [0003] (1) Manual molding: clay sand wet mold, one box for one mold, cupola smelting, simple process, low yield, low production efficiency, high labor intensity, low casting process yield, unstable mechanical properties, high cost, It has been unable to meet the needs of modern production and has been gradually eliminated by some large factories, but some small workshop-style factories still adopt this production method. [0004] (2) Mechanized molding: With the development of the market economy and the shortage of labor reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/24
Inventor 韩永丰张建军
Owner YANTAI WINHERE AUTO PART MFG
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