Unlock instant, AI-driven research and patent intelligence for your innovation.

Automobile ceramic brake pad production process

A production process and technology of brake pads, applied in the direction of friction linings, mechanical equipment, and other chemical processes, can solve problems such as unstable braking performance, traffic accidents, failures, etc., and achieve large-scale production and impact shear resistance The effect of high strength and simple production process

Inactive Publication Date: 2016-09-07
ANHUI YUETIAN SPECIAL AXLE
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different models and different regions have different requirements for brake materials. The friction coefficient is the most basic parameter of brake materials, which determines the braking performance of the brake pads. If the friction coefficient is too high, it will cause a great impact. Vibration will be generated when it is too low, and the braking distance will be too long, which will cause traffic accidents, so it is necessary to strictly control the fluctuation of the friction coefficient. As the heavy-duty vehicle has a large inertia when it is fully loaded, it often occurs during high-speed continuous braking. Obvious heat fading, unstable braking performance, resulting in smoke from the brake pads, causing brake failure due to fire, seriously threatening the safety of pedestrians and drivers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automobile ceramic brake pad production process
  • Automobile ceramic brake pad production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, a kind of automobile ceramic brake pad production technique of the present embodiment is characterized in that, comprises following process step:

[0021] (1) Ceramic friction layer raw material preparation: The ceramic friction layer raw materials of the automotive ceramic brake pad include the following chemical components: phenolic resin, nitrile rubber powder, ceramic fiber, mineral fiber, Kevlar fiber, potassium hexatitanate whisker, Artificial graphite, zinc sulfide, red copper powder, white vermiculite, composite silicate whisker, among which the weight ratio of each chemical component in the ceramic friction layer raw material is: phenolic resin 8%, nitrile rubber powder 5%, ceramic fiber 15%, mineral fiber 10%, Kevlar fiber 5%, potassium hexatitanate whisker 20%, artificial graphite 8%, zinc sulfide 6%, copper powder 8%, white vermiculite 9%, composite silicate crystal 6%;

[0022] (2) Raw material preparation for the riveting layer...

Embodiment 2

[0027] Embodiment 2: all the other are identical with embodiment 1, difference is that in the described step (3) the length of material mixing treatment is 10min, during the grinding process in the described step (5), the equipment speed 25r / min, in the electrostatic spraying process The rotating speed of the equipment is 400r / min, the temperature is 170°C, the pressure of the riveting head during riveting in the step (6) is 0.3Mpa, and the riveting time is 4s.

Embodiment 3

[0028] Embodiment 3: all the other are identical with embodiment 1, difference is that in the described step (3) the length of material mixing treatment is 12min, during the grinding process in the described step (5), the equipment speed 35r / min, in the electrostatic spraying process The rotating speed of the equipment is 420r / min, the temperature is 180°C, the pressure of the riveting head during riveting in the step (6) is 0.4Mpa, and the riveting time is 5s.

[0029] After the above process steps, the ceramic brake pad samples were taken out, and the following data were obtained:

[0030]

[0031] From the above data, it can be seen that the friction coefficient of the prepared ceramic brake pad is stable, the wear rate and thermal expansion rate are all lower than 2.5%, the expansion rate is low under high temperature conditions, and the impact strength is higher than 0.4J / cm 2 ,, long life, relatively good performance, suitable for long-term use in automobiles, and the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an automobile ceramic brake pad production process and relates to the field of automobile part production processes. The process comprises the steps of preparation of a ceramic friction layer raw material, preparation of a riveting layer raw material, mixing treatment, hot press molding, after-treatment and stirring, and workpiece mounting and packaging. According to the process, the working mode of riveting a ceramic friction layer and a riveting layer is adopted; the ceramic friction layer is excellent in abrasion resistance, free of noise and relatively low in cost, and does not contain hazardous substances such as asbestos; the internal riveting layer is made of the metal material with long service life and high impact resistance and hearing strength; the whole production process is simple and concise, large-scale production is facilitated, emission of the hazardous substances is reduced, and the production process is worthy of popularization.

Description

technical field [0001] The invention relates to the field of production technology of automobile parts, in particular to a production technology of automobile ceramic brake pads. Background technique [0002] Automobile brake pads are the key components of Class A of the automobile braking system, and their performance is directly related to the safety and reliability of automobile operation. As a brake material for brake pads, it is actually a composite material, which is formed by polymerization of various minerals and mineral fibers. Different models and different regions have different requirements for brake materials. The friction coefficient is the most basic parameter of brake materials, which determines the braking performance of the brake pads. If the friction coefficient is too high, it will cause a great impact. Vibration will be generated when it is too low, and the braking distance will be too long, which will cause traffic accidents, so it is necessary to stri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16D69/02C08L61/06C08L9/02C08K13/04C09K3/14
CPCF16D69/02C08L61/06C09K3/149F16D69/025C08L9/02C08K13/04
Inventor 周中秋李少芳
Owner ANHUI YUETIAN SPECIAL AXLE