作　　者： (白兴达）; (于双双）; (马成业）; (陈善峰）;

机构地区： 山东理工大学农业工程与食品科学学院

出　　处： 《食品研究与开发》 2017年第15期6-11,共6页

摘　　要： 以挤压螺杆构型参数阻流环直径、δ段长度、螺杆转速、螺纹升角作为试验因素,以挤出物的剪切强度为考察指标,研究挤压参数对剪切强度的影响规律。通过四因素五水平二次正交旋转组合法设计试验,利用Design Expert8.0.6软件对试验数据进行响应面分析,并对试验数据进行回归显著性检验,得到最佳挤压膨化工艺参数为:阻流环直径92 mm,δ段长度16 mm,螺纹升角7.10°,螺杆转速180 r/min。在最优参数下剪切强度14.17 N,残油率为0.77%。 The paper researched the influence law of extruding parameters about shear strength by changing configuration of screw:diameter of choke ring,length of δ,speed of screw,angle of screw-thread. The method of quadratic orthogonal rotating combination design of four factors and five levels were used to analysis the response surface of the test data by Design Expert 8.0.6. The optimal extrusion parameters were that:diameter of choke ring was 92 mm,length of δ was 16 mm,speed of screw was 7.10 °,angle of screw-thread was 180 r/min.The residual oil ratio was 0.77 % and shear strength was 14.17 N in the parameters of configuration of screw.

关 键 词： 挤压膨化 段长度 螺杆构型 剪切强度