| 摘要 |
PURPOSE:To produce the subject article having excellent lubricating characteristics and a long lubricating life and being reduced in sliding sound by specifying the volume of a gas generated from a synthetic thermosetting resin molding material in relation to the molding pressure and heating temp. in the process for thermally press molding the material with a compression molding machine, thereby forming a cured molded article having fine open cells open to the outside, and impregnating a lubricant or a water-absorbent into the cells. CONSTITUTION:A particulate material of a synthetic thermosetting resin, e.g. a phenol resin, is molded on a compression molding machine in such a manner that the molding pressure and temp. and the number of moles of a gas generated from the material are determined by using the equation of state of an ideal gas so that the volume of the gas is 0.1-10 times the volume of the resulting molded article. Having fine open cells 2 open to the outside, the obtd. cured molded article 1 gives, when immersed in a lubricant to impregnate it into the cells, the objective article suitable as a sliding bearing, a guide rail, a chain member, etc. |
