The present invention relates to a method for manufacturing a shock-absorbing bumper and a shock-absorbing bumper obtained therefrom. The method for manufacturing a shock-absorbing bumper includes the steps of: (1) introducing a solid salt into a mold, injecting a molten metal thereto and solidifying the molten metal to obtain a solidified product; (2) spraying water to the solidified product to dissolve the solid salt to obtain a porous metal containing voids; (3) disposing the porous metal in an injection mold; and (4) injecting and inserting a resin composition into the injection mold so that the at least a part of the voids present in the porous metal may be filled and surrounded with the resin composite.
본 발명은 금형 내에 고체염을 넣고 금속 용탕을 주입 및 응고하여서 응고물을 얻는 제1 단계; 상기 응고물에 물을 분사하여 고체염을 용해하여서 공극을 함유하는 다공질 금속을 얻는 제2 단계; 상기 다공질 금속을 사출 금형 내에 배치하는 제3 단계; 및 상기 사출 금형 내에 수지 복합체를 사출 삽입하여서 상기 수지 복합체가 상기 다공질 금속에 존재하는 적어도 일부의 공극을 채우면서 상기 다공질 금속을 둘러싸게 하는 제4 단계;를 포함하는, 충격흡수용 범퍼의 제조방법, 및 이로부터 제조된 충격흡수용 범퍼에 관한 것이다.
SHOCK ABSORPTION BUMPER AND MANUFACTURING METHOD THEREOF
충격흡수용 범퍼 및 이의 제조방법
2020-12-22
Patent
Electronic Resource
Korean
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B22D CASTING OF METALS , Gießen von Metallen / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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