A two-time glue spraying process for the back plate of a disc brake pad

A technology of disc brake and back plate, which is applied in the direction of pretreatment surface, device for coating liquid on the surface, coating, etc. It can solve the problems of low friction coefficient at high temperature, low shear strength, glue overflow, etc. Achieve the effects of stable friction coefficient at high temperature, guaranteed braking safety, and improved bonding effect

Active Publication Date: 2020-07-24
烟台海纳制动技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the product is loaded into the car, the high temperature friction coefficient is relatively low, which is prone to thermal recession
[0005] 2. The bonding effect between the back plate and the lining is poor, the shear strength is low, the percentage of the bonding area is small, and the brake pad with a bonding area of ​​0 is prone to appear
[0006] 3. Once the glue is sprayed, the side of the backplane is prone to glue overflow, which affects the assembly size of the product

Method used

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  • A two-time glue spraying process for the back plate of a disc brake pad
  • A two-time glue spraying process for the back plate of a disc brake pad

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 Shown, provide a kind of double glue spraying process of disc brake pad back plate, described glue spraying process comprises the steps:

[0032] Step 1. Place the disc brake pad back plates on the net disk in order, and the back plate enters the automatic glue spraying device with the net disc; the disc brake pads are discharged in sequence, without tilting, extrusion, or flipping and other phenomena, the network disk is made of stainless steel, and before use, ensure that there is no deformation of the network disk to prevent chucking during the transportation process;

[0033] Step 2. The backplane enters the first glue spraying section along with the network disk, and spray glue on the backplane for the first time; the glue used for the first spray glue is colorless and transparent glue, and the colorless and transparent glue is composed of epoxy Adhesive, the specific gravity of colorless and transparent glue is 0.8790-0.890, the atomization press...

Embodiment 2

[0043] Such as figure 2 Shown, provide a kind of double glue spraying process of disc brake pad back plate, described glue spraying process comprises the steps:

[0044] Step 1. Place the disc brake pad back plates on the net disk in order, and the back plate enters the automatic glue spraying device with the net disc; the disc brake pads are discharged in sequence, without tilting, extrusion, or flipping and other phenomena, the network disk is made of stainless steel, and before use, ensure that there is no deformation of the network disk to prevent chucking during the transportation process;

[0045] Step 2. The backplane enters the first glue spraying section along with the network disk, and spray glue on the backplane for the first time; the glue used for the first spray glue is colorless and transparent glue, and the colorless and transparent glue is composed of epoxy Adhesive, the specific gravity of colorless and transparent glue is 0.8790-0.890, the atomization pres...

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Abstract

The invention discloses a twice glue spraying process of a disc brake pad back plate. The process comprises the following steps: the disc brake pad back plate is put on a net disc in sequence, and is fed in an automatic glue spraying device along with the net disc; the back plate is fed in a first glue spraying section along with the net disc for primary glue spraying of the back plate; the back plate is fed in a first heating curing section, and the temperature of the first heating curing section is controlled within 90+-20 DEG C; the back plate is fed in a second heating curing section, and the temperature of the second heating curing section is controlled within 130+-20 DEG C; the back plate is fed in a third heating curing section, and the temperature of the third heating curing section is controlled within 195+-5 DEG C; the back plate is fed in a second glue spraying section along with the net disc for secondary glue spraying of the back plate; the back plate is fed in a low-temperature drying section for low-temperature drying, and thetemperature of the low-temperature drying section is controlled within 50+-10 DEG C; and the back plate is fed in a weighing and counting section after low-temperature drying, and is loaded in a box after weighing and counting. The process is excellent in gluing effect, is high in glue spraying uniformity, dose not overflow glue, and is high in safety.

Description

technical field [0001] The invention relates to a two-time glue spraying process for a back plate of a disc brake pad, and belongs to the technical field of disc brake pad manufacturing. Background technique [0002] Brake pads, also known as brake pads, are the key safety parts in the car braking system and play a decisive role in the braking effect. It is generally composed of a back plate, a bonded heat insulation layer and a friction block. It adopts a disc structure. The traditional disc brake pad back plate spray glue is sprayed once, and then dried at low temperature or naturally. [0003] Defects and deficiencies of the prior art are: [0004] 1. There is no curing process in the glue spraying process. The main component of the glue is a resin. During the hot pressing and heat treatment process, the resin undergoes a chemical reaction, and the small molecular substances produced are not easy to release. After the product is loaded into the vehicle, the coefficient...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/02B05D1/38B05D3/02B05D3/00
CPCB05D1/02B05D1/38B05D3/007B05D3/0254
Inventor 安述法邵春生牟双举
Owner 烟台海纳制动技术有限公司
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