| 摘要 |
PCT No. PCT/EP97/05447 Sec. 371 Date Jun. 8, 1998 Sec. 102(e) Date Jun. 8, 1998 PCT Filed Oct. 2, 1997 PCT Pub. No. WO98/15400 PCT Pub. Date Apr. 16, 1998The invention relates to a multiscrew, continuous mixing machine for plasticizable compounds with two screws, which rotate in the same direction in a housing and which penetrate the cylindrical part of the housing that envelopes the screws. The screws include axially spaced apart conveying sections and at least one mixing section therebetween. The conveying sections are formed by intermeshing conveying screws. The mixing section is formed by mixing elements. The mixing elements are followed by restricting elements which include short screw elements with back feed thread. The back feed thread forms a vertex, which progresses radially shortened along a thread in such a way that the radius of the vertex is shorter on the inlet side than on the outlet side and inbetween increases continuously towards the outlet side. |
