摘要
为寻求挤压机特征参数之间的内部关系,指导挤压生产加工实践,以玉米粉和大米粉为原料,在双螺杆挤压机上进行2因素3水平的正交试验。试验因素为:螺杆转速和喂料速率;试验指标为机筒内部压力、模头出口温度和主机电流。通过单指标回归分析,表明螺杆转速对机筒内部压力、模头出口温度及主机电流3者影响均显著,而喂料速率仅对机筒内部压力和主机电流影响显著;进一步通过响应面分析,得到较好的试验条件为:螺杆转速150 r/min:,喂料速率:14 r/min。
For the purpose of finding the inner relations of extrusion characteristic parameters and guiding the extrusion practice. 2-factors and 3-levets orthogonal experiments are carried out on the twin screw extruder with the corn-rice powder as the materials. The fac tors are set to be screw rate and feed rate; the indices are set to be： inner pressure, die outlet temperature and generator current. The experimental results are inspected with the single index regression analysis, the results show that the screw rate has the significant influence on the variables of barrel inner pressure, die outlet temperature and generator current, while the feed rate only impact significantly on the barrel inner pressure and generator current. After the response analysis of the original variables, the desired experimental conditions are obtained. The factors should be set as： screw rate = 150 r/min, feed rate=14 r/min.
出处
《食品与机械》
CSCD
北大核心
2009年第4期160-162,共3页
Food and Machinery
关键词
挤压
特征参数
单指标
回归分析
响应面分析
Extrusion
Characteristic parameters
Single index
Regression analysis
Response analysis
