2012年3月20日星期二

Plastics machinery and equipment work?

Various types of machinery and equipment used in the plastics machinery such as some of the fluid and solid transport, separation, crushing, grinding and drying and other general-purpose machinery and equipment, also occupies an important position in the plastics processing industry, so often as plastic machinery. The modern design and manufacturing of plastic machinery, in addition depends on the development of mechanical engineering and materials science, in particular, progress in theoretical studies of plastic engineering are closely related. Plastic machinery and equipment history of Chinese plastic machinery starting in the late 1950s with the development of the China Petroleum and Chemical Industry, China Plastic Machine Industry gradually formed an independent industrial sector, and begun to take shape.
China has become the superpower of the world presses production, Ningbo Haitian has also become the world’s largest output of the injection molding machine manufacturers. Plastic Machinery industry good prospects for development will remain a source of power, of the rapid development of China’s plastics machinery manufacturing industry is expected average annual growth rate of China’s demand for plastic machinery for the good development prospects. The type of plastic machinery and equipment in accordance with the intensity of mechanical size: large plastic machine, strong plastic machine, extra large plastic. In accordance with the different objects are divided into: drink bottle flakes washing machine, mineral water bottle chip cleaning machine. But in general Plastics Machinery is divided into the extruder, injection molding machines and blow molding machines.
, Extruder machine screw under the action of the molten plastic through the fixed shape of the profile can also be used in plastic modification granulation. The basic mechanism of extrusion is very simple – a screw in the cylinder to rotate and put the plastic to move forward. The screw is actually an inclined plane or slope, winding in the center layer. Its purpose is to increase the pressure in order to overcome the greater resistance. Extruder, three kinds of resistance need to be overcome: the first few solid particles (feed) on the cylinder wall friction and screw rotation (feed zone) of the mutual friction between them; melting The adhesion of the body in the tube wall; logistics resistance within the melt to move forward.
Second, the injection molding machine injection molding machine is molten plastic injected into the mold after cooling products. Very wide, according to the different plastics, using also different. Also known as plastic machinery plastic machinery, this can be from the positioning of the plastic and plastic to confirm. In the eyes of the industry, plastic and plastic is the one thing

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