Tohoku Munekata Co., Ltd

Noboru Sato

Michio Haga

Takashi Suenaga

Masahiro Tanaka

Hajime Okamoto

The deposition strength is enhanced in the thermally deposited portion of thermoplastic resin molded product. In addition, in the test for obtaining the deposition strength, the shape and dimensions that can reach the purposed deposition strength is defined. If the annular groove (,) for fixing the heating element (,) is installed to the periphery of the deposited portion of lower case (,) and the annular rib (,) is fitted into the annular groove (,) is installed to the deposited portion of upper case (,) and if the diameter of heating element (,) to be used is considered to be D, then (a) the interval L between both the lateral walls in the annular groove,shall be set to 1.3 D L 1.6 D (b) the wall thickness T of annular rib shall be set to 1.1 D T 1.2 D (c) the height A of outside lateral wall in the annular groove shall be set to A 2 D (d) the height B of inside lateral wall in the annular groove shall be set to B 2 D, and (e) the height H of annular rib shall be set to H A.

Thermally deposited portion structure of thermoplastic resin molded product

A molded product which is molded with thermoplastic resin by a thermal deposition method. The method uses a substantially ring-shaped resistance heating element. A hole is provided for impressing the voltage by inserting the electrode from this hole and impressing the voltage to the resistance heating element. Thereafter the hole is blocked. The electric resistance heating body is disposed between the composition planes of the parts which are to form a body.

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Fukushima, Japan

Noboru Sato