Preparation method of composition material for ball bearing retainer
A composite material and cage technology is applied in the field of preparation of composite materials for ball bearing cages, which can solve the problem that tensile strength, flexural elastic modulus, linear expansion coefficient, and impact strength do not meet the requirements for high-temperature and high-speed precision ball bearing cages. and other problems, to achieve the effect of high bending elastic modulus, reasonable process parameter setting and high impact strength
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[0021] The invention is a preparation method of a composite material for a ball bearing cage.
[0022] In the preparation method of the present invention, the aramid fiber cloth woven perpendicular to the diameter and weft is used as the matrix, and the prepared phenolic resin is used as the binder, and then dipped by the dipping machine, and hot-rolled by the three-roller coiling machine. The composite material for the rolling bearing cage is prepared by winding and post-curing treatment. The phenolic resin formulated involves phenol, formaldehyde, ammonia and absolute ethanol, and aramid fiber cloth, phenol, formaldehyde, ammonia water, which is woven from the weft and weft orthogonally. And absolute ethanol are available on the market.
[0023] The preparation method of the present invention actually goes through four steps. Firstly, it is formulated into phenolic resin, secondly, the aramid fiber cloth is impregnated with the phenolic resin on the dipping machine to make the gr...
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