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1.Application of processing aids to improve cold-feed extrudate quality
应用加工助剂提高冷喂料挤出质量收藏指正
2.The relation between extrudate density and screw speed,die temperature is also discussed.
还揭示了口模温度和螺杆转速与制品密度的关系。收藏指正
3.Polytetrafluoroethylene (PTFE) die can greatly inhibit the occurrence of melt fracture or surface distortion of mPE extrudate, the surface appearance of mPE extrudate gets greatly improved, and the critical shear rate increases nearly 3 times.
不同口模材质对mPE挤出口模压力、挤出流量和挤出物表面质量有着显著的影响。 与普通铸铁口模相比,经聚四氟乙烯(PTFE)口模挤出mPE熔体的口模压力降低近60%,挤出流量增加1.5倍,表观粘度降低65%,挤出物表面光滑,基本无缺陷,出现熔体破裂的临界剪切速率提高了近3倍。收藏指正
4.The different shapes of extrudate were well explained in the light of the picture that the flow instability can occurs independently at the die entrance, die outlet and die wall, but the slippage itself gives no contribution to the irregularity of the extrudate.
挤出物的不同形状可作如下描述:流动不稳定性可独立地发生于口模入口、口模出口及模壁,但滑移本身并不导致外形不规整。收藏指正
5.The results showed the thermal energy for the melting of the extrudate came from the rotating shearing sets, the stronger the shearing force, the more the thermal energy; when the extrudate was different, the screw-thread sets should also be different, and the processing technology should also be different, too; the production capacity of the extruder was linear to the screw-thread sets and revolution.
研究结果表明，物料的熔融热能来自于转动的剪切组合；螺纹组合的剪切能力越强，所产生的热量也越大；不同的物料需选用不同的螺纹组合，并配以不同的工艺条件；双螺杆挤出机的产能与螺杆的组合及转速存在线性关系。收藏指正
6.and a bead chafer compound with desired scorching life and extrudability was obtained and the blooming didn′t occur on the surface of extrudate when 0.25~0.3 phr CTP was used.
防焦剂CTP用量为0.25~0.3份时,胶料焦烧性能和加工性能满足挤出工艺生产要求,挤出性能良好,挤出半成品表面无喷霜现象产生。收藏指正
7.The best technological parameters of corn extrudate for Brabender Lab-station of DSE-25 could be described as: barrel temperature was 180℃(th5 zone), moisture content was 16%, screw speed was 120r/min, feeding rate was 16r/min.
DSE-25 型双螺杆挤压膨化机加工玉米膨化食品适宜的工艺参数组合:加工温度为180℃(第五区),物料含水量为16%,螺杆转速为120r/min,喂料速度为16r/min。收藏指正
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