The characteristics of a single -screw extruder and Application Analysis

Single screw extruder extruder as a common device , a single -screw extruder for the plastics processing industry, primarily , a single screw extruder is generally divided into three sections on the effective length , single-screw extruder press screw diameter size , pitch single screw extruder , single screw extruder screw wire drawing machine depth to determine a single screw extruder three sections the effective length of a single screw extruder generally divided by one-third each .
Efficient single screw extruder with double cascade overall design, reinforcing plasticization , single-screw extruder to ensure the stability of high-speed high-performance extrusion , special barrier integrated mixing design, single -screw extruder to ensure mixing of the material effects, high shear and low melting plasticizing temperature , high-performance materials to ensure low temperature and pressure measurement extrusion .
Single screw extruder design concepts and features: on the basis of high speed straight , high extrusion .
Single screw extruder design cheap, and thus a single screw extruder is widely used. However, single-screw extruder has its limitations in the use of a single -screw extruding machine extruder is mainly manifested in the following aspects:
( 1 ) single screw extruder material handling mainly by friction, so that a single -screw extruder feeding performance limitations , powder , paste material, inorganic fillers such as glass fiber and more difficult to join.
( 2 ) When a single -screw extruder head pressure is high , the counter increases, the single screw extruder in reduced productivity .
( 3 ) single screw extruder vented extruder the material on the surface of the exhaust area update action is small, so the exhaust single-screw extruder is less effective .
( 4 ) single-screw extruder suitable for some processes , such as polymer colored thermosetting powder processing.
Single Screw Extruder Application: All thermoplastic extrusion molding, extrusion granulation .
August 6, 2013 , China Machinery Industry Federation held the ” first half of 2013 economic complete copper and aluminum continuous operation situation Machinery Industry ” press conference . China Machinery Industry Federation executive vice president CaiWeiCi , in the Qing Ji , China Machinery Industry Federation, the statistics department director Zhao Xinmin , China Automobile Industry Association Vice President and Secretary General Dong Yang attended the conference. CaiWeiCi executive vice president of the first half of 2013 introduced the machinery industry economic operation situation , and the 2013 full-year trend of economic operation of the machinery industry to analyze and predict .
This year is the implementation of the ” Twelfth Five-Year Plan” nexus year, but also deepen the reform, continued to promote the adjustment of industrial structure to tackle tough critical period. Economic operation of the internal and external environment is complex and continuous development pressures. In this context , the machinery industry conscientiously implement the State Council’s decisions and plans , and actively promote industrial restructuring. Basic continuation of the first half of the fourth quarter of last year bottomed stabilization to the good momentum of economic operation showed a slow recovery , moderate growth and steady development trend. Forced mechanism while the role of the market , the industry continuous extrusion machine extension and expansion cooling, warming research and innovation , continue to show highlights of structural adjustment .