Polymers are the best invented material by mankind which eased human life to very great extent. Most of the day to day use in human society like tyres, automobiles, bags, packaging, rope and anything you name it. Rubber is one of the product of polymer also called as elastomers is used in making tyres mainly. Developed nations like USA and few western countries are using synthetic rubbers for better effect and ease in manufacturing. The synthetic variety rubber is also known as styrene-butadiene rubber (SBR). Another form of polymers are plastics which is consumed at a quantity of 60 billion pounds by countries like USA. China molding solution uses thermoplastics and thermosetting types.
Thermoplastics are soft in structure and are easy to melt and shape according the mold. But, thermosetting types have very tight structure as there are molecules are bind to each other in a complex form. It can only be melted at an extremely high temperature and also, this is not as flexible as thermoplastics. Mainly thermoplastics are commercially used, as compared to thermosetting types. Daily use application for thermoplastic type material are plastic bags, electrical insulation, packaging, containers, tubes, pipes, caps and bottles. Chinese plastic mold maker use thermoplastic types, categorized into another two types LDPE ( Low Density Polyethylene ) and HDPE ( High Density Polyethylene ) based on their cross linking structure. Other form of very tough and resilient materials are used from the materials include HMW ( High molecular weight polyethylene) and UHMW ( Ultra High Molecular Weight Polyethylene ).
Fibre is also another form of use of polymers. Man made fiber materials include nylon, polyester, rayon and acrylic. These materials are used in clothing, carpets ( as it is a natural insulator ), bullet proof vests. They are very tensile and durable in structure. Plastics are processed and manufactured using methods like injection molding and extrusion molding. Whereas, fibres are processed using the method of spinning. Manufacturing moulds for medical molding is very challenging as the silicones used as raw material has to undergo many regulatory compliance. A bigger profit margin is realized in production than other industrial molding applications. Plastic crates moulds are used to produce HDPE plastic crates of different commercial dimensions like 400 x 300 x 160mm, 580 x 375 x 160mm, 600 x 400 x 120mm, 600 x 400 x 200mm ( fish crates ), 500 x 380 x 325mm (vegetable crates ). There are many types of injection molding services available from injection molding manufacturer like Sino Holdings. Services like rapid injection molding, low-volume injection molding, proto-duction injection mold tooling and production tools for manufacturers.
Plastic furniture are manufactured in the same process as other plastic applications. The plastic furniture molding process involves rotational or injection or gas assisted injection molding methods for producing different types of furnitures. Hollow plastic furniture can be produced using rotational molding,, solid plastic furniture in one piece using injection molding and high quality, light furniture blending different types of plastics can be produced using gas assisted injection molding method.
