Method of forming a laminate
First Claim
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1. A method of forming a laminate, the method comprising:
- providing a metal substrate to which a layer of bronze particles is sintered;
electrostatic spraying the metal substrate with a non-fluorinated thermoplastic powder comprising a ultra-high-molecular-weight polyethylene (UHMWPE), a polyimide (PI), a polyamide (PA), a polyamideimide (PAI), or any combination thereof, and covering the bronze particles with the non-fluorinated thermoplastic powder to form a transition layer; and
spraying the transition layer with a fluorinated thermoplastic powder to form a compound layer, wherein the transition layer comprises PEEK, and wherein the fluorinated thermoplastic powder comprises polyvinylfluoride (PVF), polychlorotrifluoroethylene (PCTFE), a polyethylenechlorotrifluoroethylene (ECTFE), or any combination thereof.
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Abstract
A bearing article can include a metal substrate having a bronze layer; a PEEK layer; a PTFE composition layer overlying and penetrating the PEEK layer. A method for preparing a bearing article can include providing a metal substrate with a sintered bronze layer, electrostatic spraying a non-fluorinated polymer onto the metal substrate followed by spraying a fluorinated polymer onto the non-fluorinated polymer and heat rolling to form a laminate.
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Citations
17 Claims
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1. A method of forming a laminate, the method comprising:
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providing a metal substrate to which a layer of bronze particles is sintered; electrostatic spraying the metal substrate with a non-fluorinated thermoplastic powder comprising a ultra-high-molecular-weight polyethylene (UHMWPE), a polyimide (PI), a polyamide (PA), a polyamideimide (PAI), or any combination thereof, and covering the bronze particles with the non-fluorinated thermoplastic powder to form a transition layer; and spraying the transition layer with a fluorinated thermoplastic powder to form a compound layer, wherein the transition layer comprises PEEK, and wherein the fluorinated thermoplastic powder comprises polyvinylfluoride (PVF), polychlorotrifluoroethylene (PCTFE), a polyethylenechlorotrifluoroethylene (ECTFE), or any combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification