Processing technique for clutch facing

Abstract

The invention relates to a processing technique for a clutch facing. The production method comprises the following steps of internal mixing, i.e., all raw materials are weighed according to respective weights and then are placed in a closed rubber mixing mill for internal mixing; mixed rubber sheeting, i.e., the internally-mixed mixed materials are sheeted through a rubber mixing mill; rolling, i.e., glass fiber yarn is placed on a goods shelf and dragged sequentially to a roller press through a dragger to be rolled with glue lines; winding, i.e., the glue lines are wound around finished sheets to form different regular concentric circles; hot pressing, i.e., a multi-layer thermal press is used for solidifying, and heat is supplied in a centralized mode; thermal treatment, i.e., a hot air circulation type thermal treatment device is adopted to make the facing be solidified more completely; surface grinding, i.e., external impurities are removed, and the materials are smoothed; drilling, i.e., a double-head automatic drilling machine is used for drilling holes according to drawing regulations; and cleaning, i.e., a facing cleaning machine is used for removing dust on the surface of the facing. The processing technique is simple, practical and reliable, and the quality of the produced clutch facing is substantially improved.

Description

technical field [0001] The invention relates to the processing technology of the clutch face plate for automatic transmission. Background technique [0002] At present, most domestic enterprises use two methods of dipping method (dipping method) and glueing method (calendering method) to produce wound clutch face sheets: one is the dipping method using composite fiber yarn, impregnated with resin, rubber and fillers. After drying, winding, and hot-pressing molding, this process has small investment and good product flexibility, but the glue content is unstable, resulting in an unstable friction coefficient. A large amount of gasoline and other solvents are used in the production process, which is flammable and explosive. The fiber yarn is required to have good wettability with resin, large specific surface area, and good adsorption of composite core-spun yarn or bulked yarn. The surface layer of the former is made of acrylic fiber and chopped glass fiber. Due to the use of o...

AI Technical Summary

Problems solved by technology

[0002] At present, most domestic enterprises use two methods of dipping method (dipping method) and glueing method (calendering method) to produce wound clutch face sheets: one is the dipping method using composite fiber yarn, impregnated with resin, rubber and fillers. After drying, winding, and hot-pressing molding, this process has small investment and good product flexibility, but the glue content is unstable, resulting in an unstable friction coefficient. A large amount of gasoline and other solvents are used in the production process, which is flammable and explosive. The fiber yarn is required to have good wettability with resin, large specific surface area, and good adsorption of composite core-spun yarn or bulked yarn. The surface layer of the former is made of acrylic fiber and chopped glass fiber. Due to the use of organic fiber or short fiber, the performance is reduced; the latter The surface structure is destroyed, the strength is reduced, and it is not easy to realize mechanized production