| 摘要 |
<p>PCT No. PCT/AT94/00075 Sec. 371 Date Oct. 25, 1995 Sec. 102(e) Date Oct. 25, 1995 PCT Filed Jun. 8, 1994 PCT Pub. No. WO94/29097 PCT Pub. Date Dec. 22, 1994An apparatus for degassing thermoplastic synthetic plastics material has a first screw section (11) for the intake of the material to be treated. The plasticized synthetic plastics material flows from the housing (10) of this screw section (11) through a connection channel (15) to a filter (16) and from there through an inflow opening (17) into the housing (18) of a second screw section (19) which conveys the material to an outlet (21). Between the two coaxial screw sections (11, 19), a sealing section (26) is disposed which avoids a by-pass of the filter (16). A baffle member (28) is disposed in front of the inflow opening (17) which forces the synthetic plastics material stream into a hose-formed shape. The baffle member (28) is displaceable with respect to the inflow opening (17) in axial direction and has a cross section which tapers towards the second screw section (19). Thereby the migration path of the gas bubbles from the synthetic plastics material is reduced and thereby degassing via the degassing openings (20) is enhanced. (FIG. 1)</p> |
