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    • 2. 发明公开
    • MOLDING METHOD
    • EP4371745A1
    • 2024-05-22
    • EP21950222.6
    • 2021-07-16
    • Kokoku Intech Co., Ltd.
    • MORI KeisukeHIRAYAMA Kouji
    • B29C69/02F16J15/10
    • Y02E60/50F16J15/10B29C69/02
    • There is provided a molding method capable of reducing damage or deformation of a base material when a seal member is molded in a direction intersecting an uneven portion of the base material. A molding method includes: a preforming step of injecting a rubber material into a groove 462 at a temperature where the rubber material is not crosslinked, in a cavity plate 410 including the groove 462 into which the rubber material is injected; and a vulcanization molding step of sandwiching a base material 300 between the cavity plate 410 in which the rubber material is injected into the groove 462 and a mold 420, and molding the rubber material onto the base material 300 as a seal member 172 at a temperature where the rubber material is crosslinked. At least a surface 422 of the mold 420 facing a recess 334 and a protrusion 332 of the base material 300 is a flat surface when viewed in a cross-section at a position separated by a predetermined distance from a molding position of the seal member 172 in an X direction substantially orthogonal to a Y direction in which the seal member 172 extends.
    • 7. 发明公开
    • MANUFACTURING METHOD FOR SEALING GASKET, AND MOLD
    • EP4316786A1
    • 2024-02-07
    • EP21932567.7
    • 2021-09-26
    • Hangzhou Ao Ke Mei Rui Technology Co., Ltd.
    • HU, Meiyan
    • B29D7/01F16J15/10
    • A manufacturing method for a sealing gasket. The method comprises the following steps: S 1, preparing raw material rubber and a first component, wherein the first component comprises a base body and a gluing layer, the gluing layer is attached to an upper surface of the base body, and the material of the base body comprises a lubricating material; S2, placing the first component in an inner cavity of a forming mold, wherein the forming mold comprises an upper mold, a first main body surface of the upper mold is arc shaped, at least part of the first main body surface forms at least part of an upper wall surface of the inner cavity of the forming mold, the forming mold further comprises a lower mold, a second main body surface of the lower mold is arc shaped, at least part of the second main body surface forms at least part of a lower wall surface of the inner cavity of the forming mold, and the gluing layer of the first component faces the upper mold; S3, placing the raw material rubber in the inner cavity of the forming mold; and S4, vulcanizing the raw material rubber arranged in the inner cavity of the forming mold, such that the raw material rubber and the first component are integrated. The present application further provides a mold which can be used as a carrier for molding the sealing gasket which has sealing characteristics and also reduces the friction force of relative moving parts.