HOT PRESS MOLDING APPARATUS AND HOT PRESS MOLDING METHOD

• Main Authors: HORI JUNYA, NISHIO TOMOKI
• Format: Patent
• Language: English; Japanese
• Published: 30.09.2022
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

To provide a hot press molding apparatus and a hot press molding method which can prevent generation of a portion which is partially insufficiently quenched by performing cooling of complementing cooling by a cooling passage, while suppressing an increase in manufacturing costs.SOLUTION: A hot press molding apparatus 10 has a lower mold 11 which is a stationary mold and an upper mold 12 which is a movable mold, and further comprises mist spraying parts 61 and 62 which spray mist to an inter-mold space 17 formed between both the molds 11 and 12 with the upper mold 12 separated from the lower mold 11. The mist spraying parts 61 and 62 are arranged independently from both the upper and lower molds 11 and 12, and installed outside the lower mold 11 so as not to interfere with upward and downward movements of the upper mold 12. The mist spraying part 61 has a first spraying part 61 that sprays mist toward a molding part 25 of the lower mold 11, and a second spraying part that sprays mist toward a molding part 26 of the upper mold 12. Vaporization heat generated when mist is vaporized is absorbed, so that the molding parts 25 and 26 are cooled.SELECTED DRAWING: Figure 6 【課題】製造コストの増加を抑制しつつ、冷却通路による冷却を補完する冷却を行い、部分的に焼入れが不十分となる箇所が生じることを抑制できる熱間プレス成形装置及び熱間プレス成形方法を提供すること。【解決手段】熱間プレス成形装置１０は、固定型である下型１１と、可動型である上型１２とを有し、上型１２が下型１１から離間して両型１１，１２の間に形成された型間空間１７にミストを噴霧するミスト噴霧部６１，６２を備えている。ミスト噴霧部６１，６２は、上下両型１１，１２とは別に設けられ、上型１２の上下動と干渉しないように、下型１１の外方に設置されている。ミスト噴霧部６１は、下型１１の成形部２５に向けてミスト噴霧する第１噴霧部６１と、上型１２の成形部２６に向けてミストを噴霧する第２噴霧部とを有している。ミストが蒸発する際の気化熱が吸収されることにより、各成形部２５，２６が冷却される。【選択図】 図６