阅读说明：本技术 一种铁基粉末摩擦材料 (Iron-based powder friction material ) 是由 袁文来 于 2018-06-29 设计创作，主要内容包括：本发明涉及摩擦材料技术领域,是一种铁基粉末摩擦材料,由下述原料组成：铁粉50-60,铜粉10-15,铬粉2-6,钼粉2-6,钯粉1-3,氧化铬2-4,氧化镍2-4,高纯石英石粉2-4,碳化硅粉1-4,石墨粉2-4,酚醛树脂粉10-20,硬脂酸正丁酯5-10；制备时,将按配比将上述原料加入混料器中混匀,将混合原料装入模具中,在400-520MPa压力下冷压成型,然后放入真空煅烧炉中缓慢升温至900-1100℃保温煅烧2-4小时,水冷至100℃以下,即得；本发明的铁基粉末摩擦材料承载能力好,热稳定性、耐磨性高,磨损率低,同时具有合适的韧性,能够有效减少对偶件的损耗。(The invention relates to the technical field of friction materials, in particular to an iron-based powder friction material which is composed of the following raw materials: 50-60 parts of iron powder, 10-15 parts of copper powder, 2-6 parts of chromium powder, 2-6 parts of molybdenum powder, 1-3 parts of palladium powder, 2-4 parts of chromium oxide, 2-4 parts of nickel oxide, 2-4 parts of high-purity quartz stone powder, 1-4 parts of silicon carbide powder, 2-4 parts of graphite powder, 10-20 parts of phenolic resin powder and 5-10 parts of n-butyl stearate; during preparation, the raw materials are added into a mixer according to the proportion and mixed evenly, the mixed raw materials are put into a mould and are cold-pressed and molded under the pressure of 400-; the iron-based powder friction material disclosed by the invention is good in bearing capacity, high in thermal stability and wear resistance, low in wear rate, and suitable in toughness, and can effectively reduce the loss of mating parts.)

1. An iron-based powder friction material is characterized by comprising the following raw materials in parts by weight:

iron powder 50-60 copper powder 10-15

2-6 parts of chromium powder and 2-6 parts of molybdenum powder

Palladium powder 1-3 chromium oxide 2-4

2-4 parts of nickel oxide high-purity quartz stone powder

1-4 parts of silicon carbide powder and 2-4 parts of graphite powder

10-20 parts of phenolic resin powder, 5-10 parts of n-butyl stearate;

during preparation, the raw materials are added into a mixer according to the proportion and mixed evenly, the mixed raw materials are placed into a mold, cold-pressed and molded under the pressure of 400-520MPa, then placed into a vacuum calcining furnace, slowly heated to 900-1100 ℃, subjected to heat preservation and calcination for 2-4 hours, and cooled to below 100 ℃ to obtain the catalyst.

2. An iron-based powder friction material according to claim 1, characterized by consisting of the following raw materials in parts by weight:

iron powder 55 copper powder 12

Chromium powder 4 molybdenum powder 4

Palladium powder 2 chromium oxide 3

Nickel oxide 3 high-purity quartz stone powder 3

Silicon carbide powder 2 graphite powder 3

Phenolic resin powder 15 n-butyl stearate 8.

Technical Field

The invention belongs to the technical field of friction materials, and particularly relates to an iron-based powder friction material.

Background

The metallurgical powder friction material is mainly composed of three parts of base metal, a lubricating component and a friction component. The structure is characterized in that: the particles with special properties are uniformly distributed in a continuous metal matrix, the latter exerts a heat-conducting effect and is subjected to mechanical stresses, the former ensures the tribological properties. Compared to friction materials made by non-powder metallurgy (such as cast iron and cast steel, resin-bonded asbestos, and resin-bonded "metal-nonmetal" powder mixtures, etc.), the advantages of powder metallurgy friction materials are: kinetic energy can be absorbed quickly, braking and transmission speeds are high, and abrasion is small; the strength is high, the high temperature and high pressure resistance is realized, the heat conductivity is good, and the stable friction coefficient can be kept even under the high temperature and high pressure; the friction material is not easy to be occluded with a friction material, corrosion resistance is realized, and the friction coefficient is less influenced by grease and moisture; low noise, long life, etc. Modern machines are developing to high speed and high load, and the requirements on the comprehensive performance of friction materials are higher and higher, so that the powder metallurgy friction materials are increasingly important.

The existing iron-based metallurgical powder friction material also has the problems of poor bearing capacity, high thermal stability, high wear resistance and high wear rate, and various prepared brake fittings are easy to operate and fail. Therefore, the improvement of the existing iron-based metallurgical powder friction material is a main way for improving the performance of the brake fitting.

Disclosure of Invention

The invention aims to provide an iron-based powder friction material, aiming at solving the problem that various brake fittings made by the common iron-based metallurgical powder friction material on the market are easy to operate and fail due to the fact that the common iron-based metallurgical powder friction material is poor in bearing capacity, high in thermal stability, high in wear resistance and high in wear rate.

The invention relates to an iron-based powder friction material which is prepared from the following raw materials in parts by weight:

iron powder 50-60 copper powder 10-15

2-6 parts of chromium powder and 2-6 parts of molybdenum powder

Palladium powder 1-3 chromium oxide 2-4

2-4 parts of nickel oxide high-purity quartz stone powder

1-4 parts of silicon carbide powder and 2-4 parts of graphite powder

10-20 parts of phenolic resin powder, 5-10 parts of n-butyl stearate;

during preparation, the raw materials are added into a mixer according to the proportion and mixed evenly, the mixed raw materials are placed into a mold, cold-pressed and molded under the pressure of 400-520MPa, then placed into a vacuum calcining furnace, slowly heated to 900-1100 ℃, subjected to heat preservation and calcination for 2-4 hours, and cooled to below 100 ℃ to obtain the catalyst.

The preferred formula of the iron-based powder friction material disclosed by the invention comprises the following raw materials in parts by weight:

iron powder 55 copper powder 12

Chromium powder 4 molybdenum powder 4

Palladium powder 2 chromium oxide 3

Nickel oxide 3 high-purity quartz stone powder 3

Silicon carbide powder 2 graphite powder 3

Phenolic resin powder 15 n-butyl stearate 8.

The iron-based powder friction material disclosed by the invention is added with a plurality of raw materials capable of improving the performance of the friction material, and the prepared iron-based powder friction material is good in bearing capacity, high in thermal stability and wear resistance, low in wear rate, and suitable in toughness, and can effectively reduce the loss of mating parts.

Detailed Description