各种特种螺杆概述

A Summarization on Various Special Screws

为克服普通螺杆存在的固有缺点,近30年来开发了许多特种螺杆,目前已达到一定的高度。本文概述了五类特种螺秆:1.分离型螺杆,包括M、DFM、B、HCB、LHW、DL、K及IH等螺杆;2.混炼型螺杆,包括分散式及分流式两种混炼元件;3.螺杆套螺秆的双螺杆型,包括XLK及SDS螺秆;4.压缩—减压型螺杆,包括波状及ET螺杆;5.其他类螺杆,包括HM、SX、Dray及带波型泵的螺杆。

Special screws were developed to overcome the inherent shortcomings of conventional screws ane they are in full flourish. Five groups of special screws Were summarized in this paper, 1) Barrier screws, including M, DFM, B, HCB, LHW, DL, K and IH screws, etc; 2) Mixing screws, including dispersive and distributive mixing devices; 3) Scrcw-inside-screw types, including XLK and SDS screws; 4) Compression-decompression screws, including wave and ET screws, and 5) the other screws, including HM, SX, Dray screws, and screws witn wave pump.