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A platform for research: civil engineering, architecture and urbanism
METHOD FOR PRODUCING RESIN MOLDED ARTICLE
To form a desired texture reliably on an inner surface of a hollow resin molded article.SOLUTION: A method for producing a resin molded article (drain pipe 10) having a hollow portion (flow path 11) includes joining a first divided body 21 and a second divided body 22 to each other. The method includes a molding step of primarily injecting a resin material into a space (cavity 210, 220) formed by a first mold 400 and a second mold 500 to mold the first divided body and the second divided body, a moving step of approaching the first divided body and the second divided body close to each other by relative displacement of the first mold and the second mold, and a bonding step of bonding the first divided body and the second divided body to each other. A texture molding portion of an inner surface of the hollow portion is provided in at least one of a region corresponding to the second divided body in the molding step in the first mold and a region corresponding to the first divided body in the molding step in the second mold.SELECTED DRAWING: Figure 7
【課題】中空の樹脂成形品の内面に所望のテクスチャを確実に形成する。【解決手段】第１分割体２１と第２分割体２２とを接合することにより、中空部（流路１１）を有する樹脂成形品（排水管１０）を成形する樹脂成形品の製造方法である。当該製造方法は、第１金型４００及び第２金型５００により形成される空間（キャビティ２１０，２２０）に樹脂材料を一次射出して、第１分割体と第２分割体とを成形する成形工程と、第１金型及び第２金型の相対移動によって第１分割体と第２分割体とのそれぞれを接近させる移動工程と、第１分割体と第２分割体とのそれぞれを接合する接合工程とを含む。第１金型における成形工程での第２分割体に対応する領域と、第２金型における成形工程での第１分割体に対応する領域との少なくとも一方には、中空部の内面のテクスチャを成形するテクスチャ成形部が設けられている。【選択図】図７
METHOD FOR PRODUCING RESIN MOLDED ARTICLE
To form a desired texture reliably on an inner surface of a hollow resin molded article.SOLUTION: A method for producing a resin molded article (drain pipe 10) having a hollow portion (flow path 11) includes joining a first divided body 21 and a second divided body 22 to each other. The method includes a molding step of primarily injecting a resin material into a space (cavity 210, 220) formed by a first mold 400 and a second mold 500 to mold the first divided body and the second divided body, a moving step of approaching the first divided body and the second divided body close to each other by relative displacement of the first mold and the second mold, and a bonding step of bonding the first divided body and the second divided body to each other. A texture molding portion of an inner surface of the hollow portion is provided in at least one of a region corresponding to the second divided body in the molding step in the first mold and a region corresponding to the first divided body in the molding step in the second mold.SELECTED DRAWING: Figure 7
【課題】中空の樹脂成形品の内面に所望のテクスチャを確実に形成する。【解決手段】第１分割体２１と第２分割体２２とを接合することにより、中空部（流路１１）を有する樹脂成形品（排水管１０）を成形する樹脂成形品の製造方法である。当該製造方法は、第１金型４００及び第２金型５００により形成される空間（キャビティ２１０，２２０）に樹脂材料を一次射出して、第１分割体と第２分割体とを成形する成形工程と、第１金型及び第２金型の相対移動によって第１分割体と第２分割体とのそれぞれを接近させる移動工程と、第１分割体と第２分割体とのそれぞれを接合する接合工程とを含む。第１金型における成形工程での第２分割体に対応する領域と、第２金型における成形工程での第１分割体に対応する領域との少なくとも一方には、中空部の内面のテクスチャを成形するテクスチャ成形部が設けられている。【選択図】図７
METHOD FOR PRODUCING RESIN MOLDED ARTICLE
樹脂成形品の製造方法
MORIMOTO MASANORI (author) / IMAIZUMI MASAHIKO (author) / NAKAJIMA KOSUKE (author) / ASAJI MASAHIRO (author) / ISHII KENJI (author) / YAMAZAKI RYO (author)
2018-12-27
Patent
Electronic Resource
Japanese
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