Self-lubricating wear-resisting agglomerate moulding material

Abstract

The invention relates to a self-lubricated abrasion-proof lumpy molding compound. The premix of the molding compound contains an unsaturated polyester resin in an amount of 60 to 80 parts by mass; a low shrink additive in an amount of 20 to 40 parts by mass; an internal molding lubricant in an amount of 3 to 5 parts by mass; an inorganic filler in an amount of 140 parts to 170 parts by mass; an initiator in an amount of 0.5 to 2 parts by mass; a thickening agent in an amount of 0.5 to 1.5 parts by mass; a lubricant in an amount of 10 to 40 parts by mass; a reinforcing material in an amount of 83.5 to 188 parts by mass. The total number of the parts of the unsaturated polyester resin and the low shrink additive is 100. The self-lubricated abrasion-proof lumpy molding compound has excellent mechanical property and acid and alkali corrosion resistance, and is light in weight so as to save fuel and discharge little pollution. The invention is designed freely; the components are integral; the dimensional stability is excellent; the surface is smooth; the components can be self-lubricated without needing other lubricants for reducing friction; the molding compound can be used for molding once; and molded products have accurate sizes and good surfaces, thus avoiding machining, heat treatment and surface modification of metal abraded parts; in addition, the production cycle is short.

Description

Technical field [0001] The invention relates to a self-lubricating wear-resistant bulk molding compound (Carbonaceous Bulk Molding Compound, referred to as CBMC). Background technique [0002] The friction parts on the market, such as automobile shift sliders, generally use metal parts. The traditional metal friction parts have been processed by machining, heat treatment and surface modification. It does have various physical, chemical and mechanical advantages, but one or several treatments The process can only make it have one or several physical and chemical mechanical properties. For example, shot peening can only improve the surface hardness, but can not make it have the advantages of corrosion resistance, and the processing cost increases with the increase of processing steps. . Moreover, almost all metal friction parts need to be regularly added with lubricants, which is cumbersome to operate and increases costs. [0003] Bulk Molding Compound (BMC) is a kind of premix tha...

AI Technical Summary

Problems solved by technology

[0005] However, most of the BMCs currently on the market are used for the manufacture of light and small structural parts, and have poor wear resistance. They are generally used for bearing capacity as force-bearing parts, and are not used for friction parts.

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