Steel backing bearing blank with bonded ceramic layer, coating of polyarylene sulphide thereon and method of making
AssigneeThe Glacier Metal Company Limited
InventorGlyndwr J. Davies
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Abstract
The present invention relates to bonding a coating of polyarylene sulphide, for example polyphenylene sulphide, to a steel backing by the use of a ceramic or other non-metallic inter-layer or bonding layer. In some cases the bonding layer comprises a layer of fine particles bonded to the backing followed by a layer of coarser particles to which the coating can be more effectively bonded. This results on a coated steel backing capable of being deformed without the coating becoming detached. Such a coated backing is suitable for use as a bearing material, a chemically resistant material or as cookware.
Claims16
A steel backing having a coating of polyarylene sulphide wherein the coating is bonded to a ceramic bonding layer, comprising silicon oxide, boron oxide and sodium oxide, which is bonded to the backing.
A method of coating a steel backing comprising:
- bonding a ceramic bonding layer comprising silicon oxide, boron oxide and sodium oxide to the backing, and bonding a coating of polyarylene sulphide to the bonding layer.
Dependencies are inferred from the claim text.