The Plastics Manufacture

All of these materials with macromolecular structures, which under certain conditions of temperature and pressure in accordance with the constant changes in the form of plastic. Plastic are thermoplastics, elastomers and thermosets. Rubber, chemicals and technology, even if they have much in common with plastics are generally not considered as such.
A variety of plastics (nylon, Teflon, plexiglass, etc. ..), also on the processes of industrial production machines, similar to the metal, they are often in semi-finished (rods, profiles, plates, etc.). From which the finished product (such as bushings, rollers, rings, brooches, wheels) are processed.
For mass production of goods casting numbers. This is done by casting, die casting, the molten thermoplastic injection and plastic at high velocity and pressure in the crystallizing dish.
Plastic die casting is a process of industrial production, such as a merger, in which the liquid material in the form, with the number of injections. In general, the injection occurs at very high pressures and temperatures, the movement in plastic in the section "Press-fit shape by mechanical or hydraulic presses molding line closed. The pressure of hundreds bar. Injection molding is considered one of the economic processes of plastic.
Form, of course, it is important for this process, the mold is a matrix, which is specifically designed and used to determine the final form or through the workpiece or material to be processed. Depending on the type of work performed by mold and technology may change.
Another process for effective use in the manufacture of plastic thermoforming products, where we are with granules of polystyrene and polypropylene. This extrusion of films or foils, the temperature in such a way that violates the object of air pressure and atmosphere, very good equipment for the production.
A method for polyethylene films bull. This process is to increase the polymer is heated by the extruder through a circular chain of horizontally. The film was cooled down and the grid and the end to tow. In addition, in the air to the system volume, which are very similar, unrest in the ball. This goes back to the production of shrink film for the manufacture of packaging.
Plastics are widely distributed throughout the world, thousands of products and processes. Without plastics, if there were not many articles of daily use that we believe to be self-evident, that makes life very often far less practical and more convenient.