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US 11,007,674 B2Granted
Method for manufacturing heated molding material and device for heating molding material
AssigneeTeijin Limited
InventorsYohei Shinfuku, Noriyuki Amano, Guofei Hua
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Abstract
The present invention provides a heating device and a method for manufacturing a heated molding material. The method uses the heating device to continuously manufacture the heated molding material. The heating device includes a heating chamber for heating a molding material, at least one opening section for feeding or expelling molding material therethrough, and a means for using nitrogen gas or superheated steam to expel oxygen gas present in the heating chamber.
Claims8
A method for producing a shaped product, the method comprising:
- heating a molding material in a heating chamber of a heating device;
- and
- arranging a heated molding material in a mold controlled to be at a softening temperature or less;
- and
- compression molding the molding material in the mold,
- wherein the heating device comprises:
- the heating chamber for heating a molding material;
- and
- at least one opening section for supplying or discharging a molding material therethrough, wherein the opening section is openable and closable and the opening time is 1 second or more and 10 seconds or less per one opening thereof;
- and
- wherein the method further comprises expelling an oxygen gas existing in the heating chamber using a nitrogen gas or a superheated steam.
8 more elements
Dependencies are inferred from the claim text.