【正文】 ng projects including the control keyboard operation, the operation of electrical control system and hydraulic systems operating in three aspects. Separate action of the injection process, feeding action, injection pressure, injection speed, the top choice of the type, barrel temperature of each monitor, injection pressure and back pressure regulation. Screw injection molding machine molding process: First, granular or powdered plastic in the machine barrel, through which the screw rotates and the outer wall of the barrel, heating the plastic to bee molten state, then the machine before clamping and injection shift, so that the nozzle closely aligns the mold gate Road, then the oil pressure to the injection cylinder Walter, screw forward to high pressure and a faster speed will melt into the closed mold temperature is low , after a certain period of time and pressure to keep (also known as pressure), cooling, curing, the mold can be opened to remove the products (the purpose of holding pressure to prevent the reflux of the melt in the mold cavity, supplementary material to the mold cavity, and to ensure that products have a certain density and 5 dimensional tolerances). The basic requirements of the injection molded plastics, injection and molding. The plasticizing premise to achieve and guarantee the quality of the molded part, to meet the requirements of forming, injection must ensure there is enough pressure and speed. The same time, due to the high injection pressure, the corresponding cavity to produce a high pressure (average pressure of the cavity is generally between 20 ~ 45MPa), so there must be large enough clamping force. Thus, the injection unit and clamping devices are key ponents of the injection molding machine. Mainly in three aspects of the evaluation of plastic products, and the first appearance of quality, integrity, color, luster。 20036000kN The clamping force。s technological progress is very significant, especially the gap between the technological level of the injection molding machine with foreign brand names is greatly reduced, and made a significant change in the level of control, internal quality and appearance. Select the domestic equipment, a smaller investment, also can produce the quality of imported equipment products. These create the conditions for the technological transformation of enterprises. , China Injection Molding Machine Development of China39。 注塑機是目前中國塑料機械中發(fā)展速度最快、水平與工業(yè)發(fā)達國家差距較小的塑機品種之一。熱塑性塑料包括聚苯乙烯、聚乙烯、聚丙烯、尼龍、聚氨酯、聚碳酸酯、有機玻璃、聚砜及 (丙烯腈 /丁二烯 /苯乙烯 )共聚物 (ABS)等。 我國塑料加工企業(yè)星羅其布，遍布全國各地，設備的技術水平參差不齊，大多數(shù)加工企業(yè)的設備都需要技術改造。 小批量試生產(chǎn)時，模具構造簡單成本低，且便于卸裝。采用下模板固定、上模板可動的機種，拉帶輸送裝置與機械手相組合的話，可容易地實現(xiàn)全自動嵌件成型。此外，還應注意解決方案中的辨證關系。這些質量要求又根據(jù)制品使用場合的不同，要求的尺度也不同。 注射成型機操作項 目：注塑機操作項目包括控制鍵盤操作、電器控制系統(tǒng)操作和液壓系統(tǒng)操作三個方面。注射成型是通過注塑機和模具來實現(xiàn) 的。注射成型的基本要求是塑化、注射和成型。 生產(chǎn)過程中工藝的調節(jié)是提高制品質量和產(chǎn)量的必要途徑。 3 分類及特點 注射成型機按照注射裝置和鎖模裝置的排列方式，可分為立式、臥式和立臥復合式。 通過簡單的機械手可取出各個塑件型腔，有利于精密成型。 產(chǎn)品可自動落下的場合，不需使用機械手也可實現(xiàn)自動成型。這些為企業(yè)的技術改造創(chuàng)造了條件。如廣東震德塑料機械廠有限