Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1975-06-30
1978-05-30
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 86, 156158, 156294, 285 41, B32B 3126
Patent
active
040921930
ABSTRACT:
Described herein are coupling means for joining substrates, for example, tubular articles, which include an inner member, having disposed thereon a fusible agent for binding the substrates together, and an outer member. The substrates to be joined are inserted between the fusible agent and outer member and the resulting assembly is heated. The application of heat is maintained until it permeates the assembly and raises the temperature of the fusible agent enough that it melts and flows through and/or about the substrates to be joined. The inner and outer members act to confine the melted fusible agent by defining boundaries between which it can flow. Longitudinal flow of the agent can be controlled by limiting the area heated, by the configuration of the coupling members or substrates, or by providing the coupling with additional members that "dam" longitudinal flow. When the heating is discontinued, the fusible agent hardens to bind the substrates together. Either the inner member, outer member, or both may be a heat recoverable or spring member to provide compressive forces in the area of the joint being formed to facilitate the flow of the fusible material.
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Powell William A.
Raychem Corporation
Thrower William H.
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