Friction material and process for manufacturing aircraft braking disc made from same

A friction material and manufacturing process technology, applied in friction linings, mechanical equipment, and other chemical processes, can solve problems such as wear or damage, short service life, and poor wear matching of brake pairs, so as to improve the degree of wear and increase the use of The effect of improving life and heat resistance

Active Publication Date: 2012-07-25
SHANTOU NORTHWEST AVIATION ARTICLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For many years, the Boeing 737, 747, 767 and other large and medium-sized aircraft introduced by domestic airlines have basically relied on imports of brake pairs, one of the main consumable parts (Honeywell and Goodrich Corporation of the Un

Method used

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  • Friction material and process for manufacturing aircraft braking disc made from same
  • Friction material and process for manufacturing aircraft braking disc made from same

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0031] Example 1

[0032] In this embodiment, a friction material for aircraft brake pads, the weight percentage of each component is: copper 72%, iron 6%, aluminum 2%, tin 3%, nickel 1%, kyanite 3%, Boron nitride 2%, graphite 8%, molybdenum disulfide 3%.

[0033] The brake pad manufacturing process is as follows:

[0034] After weighing the above-mentioned components according to the formula percentage, the powders of copper, iron, aluminum, tin, nickel and molybdenum disulfide are filled into the V-shaped mixing cylinder. First, after 1 hour of machine mixing, pour kyanite and boron nitride powder into the mixing barrel, continue machine mixing for 1 hour, and then add 0.7% of the total weight of the ingredients to the mixture. # Machine oil, then machine-mixed for 1 hour, then pour graphite powder into the V-shaped mixing cylinder, machine-mix for 4 hours; mix the uniformly mixed material at a pressing pressure of 390MPa to form a powder compact; adopt a thickness of 1.5~1.7mm T...

Example Embodiment

[0035] Example 2

[0036] In this embodiment, a friction material for aircraft brake pads, the weight percentage of each component is: copper 68%, iron 7%, aluminum 2%, tin 3%, nickel 1%, kyanite 4%, Boron nitride 3%, graphite 10%, molybdenum disulfide 2%.

[0037] The brake pad manufacturing process is as follows:

[0038] After each component is weighed according to the formula percentage, the powders of copper, iron, aluminum, tin, nickel and molybdenum disulfide are put into the V-shaped mixing barrel, and the kyanite and boron nitride powder are mixed for 1 hour. Pour into the mixing barrel and continue mixing for 1 hour, and then add 0.5% of the total weight of the ingredients to the mixture. # The oil is mixed by machine for 1 hour, then the graphite powder is poured into the V-shaped mixing cylinder, and the machine is mixed for 4 hours; the uniform mixture is pressed at a pressure of 370MPa to form a powder compact; a thickness of 1.5~1.7mm 30CrMoA is used The steel plate ...

Example Embodiment

[0039] Example 3

[0040] In this embodiment, a friction material for aircraft brake pads, the weight percentage of each component is: 62% copper, 10% iron, 3% aluminum, 3% tin, 1% nickel, 6% kyanite, Boron nitride 2%, graphite 12%, molybdenum disulfide 1%.

[0041] The brake pad manufacturing process is as follows:

[0042] After each component is weighed according to the formula percentage, the powders of copper, iron, aluminum, tin, nickel and molybdenum disulfide are put into the V-shaped mixing barrel and mixed for 1 hour, then kyanite and boron nitride powder are poured Put it into the mixing barrel and continue mixing for 1 hour, then add 10% of the total weight of the ingredients to the mixture. # Machine oil, then machine-mixed for 1 hour, then pour graphite powder into the V-shaped mixing cylinder, machine-mix for 4 hours; the mixed powder is uniformly mixed at a pressing pressure of 350MPa to form a powder compact; a thickness of 1.5~1.7mm The 30CrMoA steel plate is proc...

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Abstract

The invention relates to a friction material which comprises the following components in percentage by weight: 62-72% of copper, 6-15% iron, 2-6% of aluminum, 3-8% of tin, 1-5% of nickel, 3-10% of cyanite (Al2O3.SiO2), 2-7% of boron nitride, 8-16% of graphite and 1-4% of molybdenum disulfide. The process for manufacturing an aircraft braking disc made from the friction material comprises the following steps: mixing a mixture of the friction material, pressing and moulding, preparing a steel back, and pressurizing and sintering the aircraft braking disc. Compared with the prior art, the mechanical performance, the physical performance, the friction and wear resistance, the use reliability and the service life of the aircraft braking disc made from the friction material reach or exceed those of the imported aircraft braking pair, and the aircraft braking disc made from the friction material can completely meet the use requirement of the Boeing 737 aircraft.

Description

technical field [0001] The invention relates to a friction material and an aircraft brake pad manufacturing process using the friction material, more specifically to a friction material for large and medium-sized transportation aircraft brake pads and an aircraft brake pad manufacturing process using the friction material . Background technique [0002] The characteristics of modern large and medium-sized transport aircraft brake devices are: high braking efficiency, safe and reliable work, long service life, light weight, small size and compact structure. The key technology that embodies the function of the brake device is the performance of the material of the friction pair (the general term for friction material and dual material). At present, there are basically two types of friction pair materials widely used in large and medium-sized transport aircraft in the world, namely cermet friction materials-steel and carbon / carbon composite materials. [0003] Although carbon...

Claims

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Application Information

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IPC IPC(8): C09K3/14C22C9/00B22F7/08F16D69/02
Inventor 陈贤海林虹陈佳纯
Owner SHANTOU NORTHWEST AVIATION ARTICLES
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