公开(公告)号：EP0249185A3

公开(公告)日：1988-11-17

申请号：EP87108286

申请日：1987-06-09

申请人： JAPAN BUTYL COMPANY LIMITED

发明人： Shogenji, Toshihiro ,  Takahashi, Kenichi

IPC分类号： B30B09/12 ,  B29B13/06 ,  B29B07/42

CPC分类号： B29B7/422 ,  B29B13/06 ,  B29C47/6025 ,  B30B9/12

摘要： In a dryer for drying extrudable materials, a worm is rotatably disposed in a tubular sleeve which is equipped at its front portion with a hopper to supply extrudable materials. The worm is supported at its both ends by bearings in the sleeve or outside the sleeve. A seal screw is formed around the rear portion of the worm, and an outlet for discharging the extrudable materials is formed on the side surface of the sleeve near the end of the seal screw. The end of the seal screw is connected with a flushing ring which is protruded from the end of the worm,

公开(公告)号：EP0213510A3

公开(公告)日：1987-05-06

申请号：EP86111300

申请日：1986-08-14

申请人： IDEMITSU PETROCHEMICAL CO. LTD.

发明人： Takubo, Toyokazu

IPC分类号： B29C47/60 ,  B29B07/42

CPC分类号： B29C47/60 ,  B29C47/0021

摘要： This invention relates to a screw used in an equipment for molding thermoplastic resin, in which a mixing section is provided at a position adjacent a shearing section, and the pitch of a stress relaxation section is preset to the pitch, at which satisfactory kneading can be performed without giving high shesring to the resin. With this screw, even if high-speed extrusion molding is performed, the pressure of resin is not fluctuated, molded parts can avoid lowered material quality and outstanding molded parts can be provided.

公开(公告)号：EP0140846A3

公开(公告)日：1986-07-30

申请号：EP84830279

申请日：1984-10-16

申请人： Fornasero, Renato

发明人： Fornasero, Renato

IPC分类号： B29B17/00 ,  B29B07/42

CPC分类号： B29B17/0412 ,  B29B7/422 ,  B29B9/06 ,  B29C47/0009 ,  B29C47/362 ,  B29C47/38 ,  B29C47/44 ,  B29C47/585 ,  B29C47/6018 ,  B29C47/667 ,  B29K2105/26 ,  Y02W30/625

摘要： I@ Following an initial operation possibly required for separation from other types of refuse, waste plastics materials are triturated or crushed and cold-mixed. The triturated and mixed wastes undergo a first heating stage at a first temperature, with a view to obtaining a mass in an initial state of plastification. This mass subsequently undergoes a second heating stage at a second temperature, generally different from said first temperature, until there is obtained thereform a homogeneously melted mass. The apparatus comprises a generally tubular housing (21) carrying at one end thereof a triturating device (2) within which the wastes are reduced to fragments and cold-mixed. The triturating device (2) comprises a toothed rotor (9) fitted onto a rotary element (16) rotatably mounted within the housing (21) and provided with thrust surfaces for the material with a helicoidal development (24, 25, 26, 28). The hub (10) of the triturator (2) is provided with apertures (15) which permit the triturating material to penetrate radially into this hub (10), so as to be brought into contact with the thrust surfaces of the rotary element (16) which functions as a mixing member. On at least one longitudinal portion (19) of the rotary element (16), the thrust surfaces for the material are defined by angular screw-threaded sectors (25, 26) arranged according to at least two oppositely directed helicoidal trajectories.

公开(公告)号：EP0200117A3

公开(公告)日：1988-10-19

申请号：EP86105388

申请日：1986-04-18

申请人： NORITAKE CO., LIMITED ,  MITSUBISHI RAYON ENGINEERING CO., LTD.

发明人： Sukai, Kiyoshi ,  Ichii, Keizo c/o MITSUBISHI RAYON ,  Takane, Shigeru c/o MITSUBISHI RAYON ,  Yoshikawa, Takayuki 4-303, Kamiyashiro Minami Juta ,  Inada, Hiroshi ,  Yamada, Takao

IPC分类号： B29B07/42 ,  B29C47/60 ,  B29C47/66 ,  B29K105/12

CPC分类号： B29B7/428 ,  B29C47/0009 ,  B29C47/0825 ,  B29C47/0844 ,  B29C47/60 ,  B29C47/66 ,  B29K2105/12 ,  B29K2105/16 ,  B29K2909/02

摘要： @ The outer periphery of a screw and the inside of a barrel of a screw type extruding or kneading machine are made of ceramics, to improve the abrasion and heat resistances thereof, so that the screw and the barrel will operate for a longer life time even if a hard material or a material containing a hard material is worked.