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Development of key technology of coaxial twin screw extruder
The torque transfer mode between screw and mandrel is the key to realize the deep screw groove. The torque transfer between the screw element and the mandrel was initially connected by flat keys, which not only limited the deepening of the screw groove and increased the free volume of the screw, ...Read More -
Tube Plastic Extrusion Machine Process
Plastic extrusion of tube, hose and pipe is a steady-state process for converting a thermoplastic raw material to a finished or near-finished annular product. The raw material is usually in the form of plastic pellets or powder. The conversion takes place by forming a homogeneous molten mass in t...Read More -
The Key Principles of Extrusion Part 1
The following are important principles to keep in mind regarding extrusion. They should help save money, yield higher quality products, and use equipment more efficiently. 1. The mechanical principle.The basic mechanics of extrusion are simple—a screw turns in a barrel and pushes the plastic forw...Read More -
Radiation and Industrial Polymers Types of Reactions Involved
Radiation-initiated reactions can be categorically classified as two types: (1) crosslinking and scissionand (2) grafting and curing. Crosslinking is the intermolecular bond formation of polymer chains. Thedegree of crosslinking is proportional to the radiation dose. It does not require uns...Read More -
Polymers Electrical Applications Part 2
In the electrical field, one of the essential things for electrical wires and cables is insulating andjacketing materials. For many years, the pre-eminent insulation material for power cables was oil-impregnated paper due to its excellent electrical properties. It has also the capacity to withstan...Read More -
Design of microwave sintering furnace
Microwave heating furnace is mainly composed of monitoring system, control system, insulation box, microwave generator, heating box and gas storage tank. The heating box is made of stainless steel mirror plate. Cooling water can flow in the sandwich between two layers of stainless steel plate to ...Read More
