Steel backing/polymer composite material lining bearing bush and preparation method

Abstract

The invention discloses a steel backing / polymer composite material lining bearing bush and a preparation method. The bearing bush comprises a lining (5) with steel backing (6) and a carbon fiber fabric reinforced polymer composite material, and the lining (5) is stressed by a mold, adhered on the inner surface of the steel backing (6) to be formed, cured and integrally adhered with the inner surface of the steel backing (6). The material of the lining is a carbon fiber fabric reinforced polymer self-lubricating composite material which particularly comprises components including from 20 to 30 parts of phenolic resin, from 15 to 20 parts of epoxy resin, from 5 to 10 parts of talc powder, from 10 to 30 parts of graphite, from 10 to 15 parts of molybdenum disulfide, from 15 to 22 parts of curing agent and from 0.4 to 2 parts of coupling agent. The bearing bush has the advantages of high carrying capacity, fine impact resistance, low friction coefficient, fine dynamic performance and abrasion resistance, steel can replace copper, precious metal is saved, near net forming of the inner surface of the bearing bush is realized, stability of the geometric dimensions of the bearing bush is high, and the steel backing / polymer composite material lining bearing bush is lead-free and environment-friendly and is easy to recycle.

Description

technical field [0001] The invention relates to a steel-backed / polymer composite lining bearing and a preparation method thereof, in particular to a steel-backed / layer structure bearing for a heavy-duty sliding friction pair and a preparation method thereof, which belongs to the innovative technology of bearing manufacturing in the field of mechanical transmission. Background technique [0002] Heavy-duty sliding bearings are one of the key components in mechanical equipment, and are widely used in forging machinery, plastic machinery, metallurgical machinery, engineering machinery and other equipment. In these equipments, the tribological properties of sliding bearings are an important index affecting the working performance of the equipment. High-efficiency, energy-saving, heavy-duty, and design and manufacturing technology of sliding friction pair are one of the key technologies of this type of equipment. decisive influence. At present, high-performance copper alloy bea...

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Problems solved by technology

[0005] The above-mentioned patent uses wire welding as the reinforcement matrix, which requires multiple processes such as welding, pressing, sintering, and cutting.

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