Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-09-30
1989-08-29
Bell, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156141, 156245, 264255, 264296, 264326, F16G 100
Patent
active
048614033
ABSTRACT:
A method of fabricating a rubber double-toothed belt wherein the unvulcanized rubber thereof is firstly heat treated so as to define a first toothed portion of the belt without substantial vulcanization thereof. The preform is then entrained about pulleys and a pair of heated molds engaged with both the toothed portion and the nontoothed outer portion of the belt to place the preform under pressure at a vulcanization temperature for sufficient time to cause the outer rubber portion of the preform to flow outwardly and define the outer teeth of the final belt concurrently with the vulcanization of the double-toothed belt construction. The parameters for controlling the heat treatment to provide the configurational retention without substantial vulcanization of the preform rubber are disclosed.
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Standard Test Method for Rubber Property--Vulcanization Characteristics Using Oscillating Disk Cure Meter-ASMT Designation: D 2084-31, pp. 536-541.
Asazuma Masaaki
Goto Shigeo
Yoshimi Keiichi
Bell Michael W.
Herb David William
Mitsuboshi Belting Ltd.
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