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  • 专利标题:   Rubber tube useful for underground hydraulic transmission, comprises e.g. inner rubber layer set inside composite layer and outer rubber layer set outside composite layer, where metal weaving layer is compounded on middle rubber layer, and outer rubber layer is compounded on metal weaving layer.
  • 专利号:   CN115322461-A
  • 发明人:   WANG Y, HU X, HAN W, JIA X, LIU G, LI X
  • 专利权人:   QINGDAO XIANGLIU RUBBER HOSE CO LTD
  • 国际专利分类:   C08K003/04, C08K003/06, C08K003/22, C08K003/34, C08K005/09, C08K007/26, C08L011/00, C08L023/16, C08L053/02, C08L067/04, C08L083/04, C08L087/00, F16L009/12
  • 专利详细信息:   CN115322461-A 11 Nov 2022 C08L-011/00 202303 Chinese
  • 申请详细信息:   CN115322461-A CN10865521 21 Jul 2022
  • 优先权号:   CN10865521

▎ 摘　　要

NOVELTY - Rubber tube comprises a composite layer, an inner rubber layer arranged inside the composite layer and an outer rubber layer arranged outside the composite layer, where the composite layer comprises a medium rubber layer and a metal weaving layer. The middle rubber layer is compounded on the inner rubber layer, the metal weaving layer is compounded in the middle rubber layer, and the outer rubber layer is compounded on the metal weaving layer. USE - The rubber tube is useful for underground hydraulic transmission. ADVANTAGE - The rubber tube has good pulling strength, and elongation at break and corrosion resistance. The method provides reliable guarantee for the long-term and stable operation of the mine hydraulic transmission system. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of rubber tube for underground hydraulic transmission, comprising (1) adding Neoprene (Polychloroprene), thermoplastic styrene elastomer, polylactic acid, simethicone, kaolin, talc, sulfur, stearic acid, and graphene into a banbury mixer, adding calcium-zinc stabilizer, butyl benzyl phthalate, and vulcanization accelerator, continuously mixing, and removing glue to obtain inner rubber material, (2) dropping ethylene propylene diene rubber, grafted polyvinyl chloride, white carbon black, antioxidant, and dispersant into banburying in the banbury mixer, adding binder, butyl benzyl phthalate, zinc oxide, sulfur, and vulcanization accelerator, continuously mixing, and discharging rubber to obtain the outer rubber material, (3) sequentially extruding the inner rubber material to obtain an inner rubber layer, extruding and forming a middle rubber layer on the inner rubber layer, weaving steel wires in the middle rubber layer to obtain metal weaving layer, extruding the outer rubber material on the metal weaving layer to form an outer rubber layer to obtain semifinished product, and (4) vulcanizing and cooling the semifinished product to obtain rubber tube for underground hydraulic transmission.