Year1
. Manufacturer: Korea Chemical
. Model:
. Usage level: other
.
(English Namer)
, . Engineering plastic is a graft copolymer of acrylic rubber body, acrylonitrile and styrene. Its structure is as follows
, .
.
, . Detailed description of plastic raw materials< br/>
, . Plastic molding machine conditions for plastic raw materials:? Five major elements of molding conditions: pressure, injection pressure: control of melt filling. Holding pressure: Control the melt to prevent backflow after filling. Back pressure: controls resin melting. Clamping pressure: controls the mold from being punched open, speed storage (R value): controls resin melting. Firing rate: Controls resin filling. Holding speed: Control the resin recovery during cooling. Mold opening and closing speed: controls the movement of the mold. 3. Temperature tube temperature: controls the melting of plastic. Original drying temperature: control the original moisture content. Mold temperature: controls the crystallinity and cooling of the melt. Time injection time: control melt filling. Cooling time: Control the melt solidification. Mold opening and closing time: control mold movement. Intermediate time: Control the pause after mold opening. Position injection range: control melt filling. Mold opening and closing process: control the mold process. Robotic process: controls the clamping head. Classification of plastics according to plasticizing properties: thermoplastics and thermosetting plastics. Thermoplastics: After plastics are heated and softened for molding, they can continue to be heated and softened for molding. Thermosetting plastics: After the plastic is heated and softened for molding, it cannot be softened and molded by continued heating (bakelite). , divided by use: general plastics and engineering plastics. General plastics: have common properties of plastics and can be widely used in production. Four general plastics: engineering plastics: have special mechanical properties and can be used as engineering materials. B,,. According to crystallization: crystalline plastic raw materials and amorphous plastic Crystalline plastic: molecular chains are arranged in order (,,) Amorphous plastic: molecular chains are arranged in disorder (, B,,)
.
.
The applications of plastic raw materials range from tiny gears and screws to household appliances, phones, cleaning tools, and even cars, computers, medical equipment, etc. The applications of plastic in life are endless. I think plastic is kind to people. Covering it with the soft and bright properties of plastic can cover up the cold light emitted by the machine, making it easier for humans to get along with the machine. Therefore, plastic has become indispensable in daily life. As a bridge between humans and high technology, plastics have endless potential to be developed. Here I will discuss with you some common knowledge about plastic products from the following aspects. Formula process:
Resin is mainly produced by blending technology. The main raw materials are
powder and resin, colorants, and antioxidants. agents, internal and external lubricants, etc. The main equipment is a twin-screw extruder. Other supporting equipment also includes high-speed batching machines, automatic weighing feeders, cooling granulators, automatic packaging machines, and quality inspection equipment (melt indexers, universal testing machines, etc.). When producing When reaching a certain scale, finished product silos are also required.
WhatsApp
