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Multi-layer laminated materials forming process analysis


Complex nose block diagram method. (3) Multi-channel extrusion feed block die and common method of combining Reifenhauser from Germany, developed specifically for processing more than four heat-sensitive materials, as shown in Figure 6. Figure 4 Multi-die co-extrusion flow diagram of composite molding 5 die co-extrusion feed block molding compound flow diagram of more than 6 combined with the feed block die co-extrusion composite molding compound molding composite molding process compared with other , the thickness of each layer is more difficult to control and regulate, the interface between layers is not clear enough, the interface layer material penetrate each other, especially in the mold compound and die lip compound point to the relatively long distance of Tian especially under the circumstances; other on the composite substrate is concerned, can only be a co-extrusion of thermoplastic composite molding compound between, and can only be compatible thermoplastic co-extrusion method can be directly combined together, and if there is no compatibility of two resin , you must use a kind of in between two incompatible resins are compatible, or so-called call-compatible adhesive resin to the extrusion of resin composite. However, co-extrusion composite molding technology used in a process can be completed within the multi-layer extrusion products, most products do not co-extrusion composite substrates and adhesives, with the production of low cost, simple process, energy consumption JJ , high production efficiency, product variety and other characteristics, and particularly suitable for the production of composite films, plates, sheets, tubes and other composite products, multi-layer composite products is the most promising of the composite molding technology. II. Multi-layer composite molding problems can easily arise and solutions to multi-layer composite molding technology for its low production cost, simple process,[link widoczny dla zalogowanych], low energy consumption. High production efficiency, product variety and so much people of all ages, but it has long been more emphasis on the application of this technology, and theoretical study is only a few years ago, in the multi-layer composite molding processing products, as well as many problems need to be solved. The performance of products, the main factors forming the following three aspects. 1. Caused the bond between two different materials composite products combined with the weakening of interlayer bond between two materials have a direct impact noon: lI O, 1I = lka 【a - heel of a target in archery - leap pupil layer composite products Riman the strength of adhesion. The same field, so the molding technology has been more l affinity (eg,[link widoczny dla zalogowanych], ionic polymers, EVA material thickness of the layer thickness than the other, usually a health Kyrgyzstan Murakami, Kanji Otani was. Xiehe Feng, etc.). For example, good air tightness and water will not cause problems nylon; difference if the thickness of each layer is not translated. Recent development co-extrusion technology vapor density combined with good low density polyethylene is easy to produce as much bending deformation, which is due to two holes Dai Dong, Zhang Baohui. Leading food packaging films used for packaging use, type in the two complete layers of different materials, the cooling shrinkage of the total field production of flat film extrusion die Plastics Technology l and there are not binding, it is necessary to the two species has caused cause. To avoid this phenomenon the N0 · 3,1990 ... a material, or use the products in the same inside and outside, ,[link widoczny dla zalogowanych],],[U.S. TMI, UK MESER, Germany BRUGGER, companies such as the Netherlands TESTPRINT ll test apparatus, equipment widely used in food / beverage, pharmaceutical, cosmetics cleaning products, tobacco, printing, ink production and other process industries ÷; control process. Company the timely, comprehensive customer service has won recognition at home and abroad!; _ the main instrument: * Ink friction heat sealing apparatus and instrument seal strength tester pulp I-I {j. fi #; · the fog meter coating machine: three :::-:· a tear Instrument gloss meter, a '* a puncture strength meter la l) viscometer ■ J ridicule zero'. j an ink viscosity tester ~, choke date: ■ a {! * all kinds of densitometer and color measurement system,[link widoczny dla zalogowanych], etc. ~ Feast ~ ■ Xiang Zhen Address: Beijing Asian Games Village North Star East Road, Building 18, Room 401, CATIC Zip: 100101 Tel :010 -84970401 one by one , 84971462,84973309 Fax: 010.84970403E.mail: [link widoczny dla zalogowanych] in I look 2003/2_

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