Applied Research, Engineering Plastics In The Hood Accessories

The tobacco machine equipments have high rotate speed and high-efficiency characteristics, This cause spare parts lost the original worked accuracy because of the friction and abrasion, The spare parts must be replaced, so the tobacco factory needs to expend a great deal of funds to import the tobacco machine accessories every year. Along with the gradually vigorous competition of the tobacco industry, It becomes important problem that the tobacco machine accessories becomes national product and the production cost be lowered the late years.This paper mainly discuss that the engineering plastics application and study in the tobacco machine accessories. According to the capability request of the tobacco machine plastics accessories of wearable property, the surface smooth and the size accuracy requests, the technique problem of the engineering plastics exist in the tobacco machine accessories apply, on the foundation of the physics machine property of the engineering plastics, the paper study choose of the material and manufacture of the engineering plastics.The engineering plastics is a kind of newly arisen material after all, compared with the metals material, it lack the systemic and intact theories and the data of the aspects of the choosing of the material, design and modeling. This paper analyze the capability and transformation of the engineering plastics, it puts forward that the wearable property, the self-lubricative and the dimension stability of the engineering plastics influence on using demand of the tobacco machine accessories. According to the accuracy demand of the tobacco machine accessories, it analyzes that the constringency rate, absorbing water rate, the hot coefficient of expansion and distortion influence the function on the accessories accuracy. We choose four kinds of the engineering plastics of POM, PA66, PVDF and PPS and transformation of the material to manufacture the tobacco machine accessories.The choosing of the engineering plastics is the foundation of the tobacco machine accessories manufacture, the choice of machining the method is the assurance that the tobacco machine accessories be manufactured. At last the full text discussed the concrete application study of the engineering plastics is used in the san-lun-he-mo and the yan-ku-he-mo. On the foundation of analyzing some processing means, we chose three kinds of to processing the method of one time machine to processing, the mold presses to model and first the mold presses to model again two times machine process. On base of the experiment, we analyze the craft parameter that one time machine to processing influence on accuracy of the tobacco machine accessories. We study three kinds of processing accuracy, their material utilization rate and economic costs by the experiment. These provide the basis for the reasonable choosing processing means. Synthetically considering the above factor, we decided to choose to the admixture process to machine the san-lun-he-mo with the PVDF grain, choosing to the mold to press to model making the the yan-ku-he-mo with the PPS grain, and by assembling the accessories worked on the tobacco machine equipments in good shape.The paper have the certain leading meaning about the engineering plastics in application of the tobacco machine accessories, in order to carry out the tobacco machine accessories national product to turning and lowering the production cost, the paper provide the theories and techniques to prop up.