JPS5913038A - Low friction type sintered alloy reinforced with short metallic fiber - Google Patents

Abstract

PURPOSE:To provide a low friction type sintered alloy which is reinforced with the short metallic fibers suitable as a brake for vehicles by constituting said alloy of a sintered alloy consisting essentially of the metallic powder replaced partly or fully with the short metallic fibers. CONSTITUTION:In the case of using copper for the metal of the above-described metallic powder and short metallic fibers, short Cu fibers of, for example, 1-3mm. length for a part of, for example, CU powder, as well as Cu3P, a lubricant and a grinding material are added and mixed respectively at prescribed ratios to and with said Cu powder. The mixed powder is molded, for example, at 3 tons/cm<2> molding pressure, and the molding is sintered at 780 deg.C sintering temp., whereby the intended low friction type sintering alloy is manufactured. The sintered alloy has extremely low bulk hardness; therefore, when said alloy is used as a friction material, the content condition of the mating material is good and the thermal influence which is usually observed is too small to be observable with the eye. Since the alloy is melted and sintered in the state of reinforcing the same with the metallic fibers, the amt. of the lubricant, etc. to be filled is decreased and as a result, the sintered alloy having a low coefft. of friction, high hardness and high strength is provided.

Description

[Detailed Description of the Invention] The present invention relates to the use of a 1L low 4-type sincere combination for attracting good pigeons as a brake for car entertainment. As a shielding first tree, t'4 is often used as a 4-brake material, but this friction material has a limit in terms of the degree of A reduction, and has been used for many years in history.
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To add to the argument, even if it is necessary to redistribute the manuscript, it is the mass that supports the system of female fireflies that bring about the strength of the source material.

The non-invention was made because of this kind of problem. 4 In the filtration joints that use wood as a living body,
A part or all of the original wood is laid down, and the purpose of the period is achieved by cutting it directly.

That is, in the boundary combination of 4 inventions, 41tST gold is used in 4 tan-kai, which increases the obsolete word combination by 1 degree and 2 ken, and attempts to turn 4 original nature deer into a woman.

The following is a description of Example 52. or.

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The same thing can be done in a joint arrest where one point is lower than J2's shoulders and it is decided to make them t and a half m-.

(2) m4 conditions Both the conventional rice product and the invention product were tested under the same conditions.

Rather, it is made with a molding pressure of 3 tons/-.
uct pressurization 7 to IO 89/-'', was completed in 60 minutes.

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2 Table 2 shows the test results for railway vehicle brakes conducted under the following test conditions.

test conditions Conforms to the Japanese National Railways test code (low friction coefficient brake shoes).

0 brake shoe pressing force 2°tonX2 C clasp type).

Initial brake speed 35.65.95Km/hO Brake frequency 19 times 0 Inertia 126 KgmB"0 Brake start temperature #lrfig'(::"The amount of wear is measured based on the difference in weight before and after the test. did.

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70A or more), in this case, 52 is dominated by the advantage of having less alpha power to bite into the wide axis 4-condition 1; # seat pillar m1nt expressed as 0. The shaft body can be fitted with a T-shape, making it suitable as a 6-wheel inertia brake.

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Claims (1)

[Claims] (1) I was at 8 in the Bon A Kf store and in the soul group, and I was arrested @
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