| 摘要 |
<p>A method of applying a bearing lining at least 0.005 inch thick of polyarylene sulphide to a bearing backing, which comprises applying to said backing a powder composition consisting of at least 80% by weight of uncured polyarylene sulphide together with at least 10% by weight of precured polyarylene sulphide, said precured polyarylene sulphide having been cured by being heated in air for 2 hours at at least 400 DEG C and is in the form of particles with sizes in the range 53-211 microns, and then heating and curing the uncured polyarylene sulphide of the coating by heating to a temperature of at least 380 DEG C. To produce the cured powder, uncured powder is mixed with salt and then cured; the salt prevents the powder from coalescing, and is subsequently dissolved out.</p> |
