Comparison of injection molding machines and Extruders
Considerations for extruder use:1, extrusion machine is running forward, avoid reverse2, avoid fasting operation, must heat engine feeding operation, so that can avoid sticking bar (holding shaft) phenomenon3, the extruder inlet, vent hole is strictly prohibited access to iron and other miscellaneous, so as not to cause accidents, affect production4, safe use of electricity, grounding wire5. When the machine is running, it is forbidden to touch the rotating parts such as the material inlet, the material outlet, the belt, the gear and so on6, before using the machine should be injected with lubricating oil, so as not to cause damage to the machineSince the extruder as one of the three synthetic plastic material since the advent of rapid development.
The plastic to replace steel or nonferrous metal, plastic cement, which is widely used in agriculture, building materials, packaging, machinery, electronics, automobiles, household appliances, petrochemical and defense, extruder and daily life other fields. So it can be predicted that in twenty-first Century, the plastic will be one of the most important raw material of human activities. The extruder design due to extrusion molding is the main form of plastic processing, so the development of plastic extrusion molding technology and equipment has important significance. The polymer materials used in blending type mixing equipment modification there are three main types: parallelwith twin-screw extruder, reciprocating screw kneader and series disc extruder. The small corotating twin screw extruder has domestic production can squeeze But tons of large mixing extrusion granulation unit will rely on the import machine technology. At the same time. Reciprocating screw kneader and series disc extruder is a necessary device for preparing high fill and high added value of polymer alloy, the current domestic research on them is just in the prototype stage, specifications, varieties not all, have broad prospects for development.
