How plastic bucket processing and manufacturing

Available in a wide plastic bucket different processing method and manufacturing. As the main raw material ethylene, propylene, 1-butene, hexene copolymer, in the role of a catalyst, using a slurry polymerization or gas phase polymerization process, the resulting polymer was flashed, separation, drying, granulation step, to obtain uniform particles of the finished product. Including such as sheet extrusion, film extrusion, tubing or profile extrusion, blow molding, injection molding and rotational molding.

Extrusion: for the extrusion grade generally has a melt index of less than 1 and the width to broad MWD. In the process, a low MI of available suitable melt strength. Broader MWD is more suitable for extrusion grades, because they have a higher production rate, the lower die pressure and melt fracture reduction trend.

There are many uses extruded plastic bucket, such as wires, cables, hoses, tubes and profiles. Pipe applications range from a small section of yellow for natural gas to 48in diameter pipe for thick-walled pipes clarinet industrial and urban. An alternative to the large-diameter hollow wall made of concrete pipe used as rainwater drains and other sewer pipeline is growing rapidly.

Sheet and thermoforming plastic bucket: many large picnic-type freezer thermoforming lining is made of PE, with toughness, light weight and durability. Other sheet and thermoformed products including fender, tank linings, disc bowl guard, transport boxes and cans. One plurality of fast-growing film or sheet applications are bottom of the village, which is based MDPE toughness, chemical resistance and impermeability.

Blow: In the United States sales of HDPE1 / 3 or more for blow molding applications. These range from loading bleach, oils, detergents, milk and distilled water bottles to large refrigerator, car fuel tank and the canister. Characteristic index Blow grade, such as melt strength, ES-CR and toughness, and for similar sheet and thermoforming applications level, so similar grades can be used.

Plastic barrels injection - blow molding used for the manufacture of smaller containers (less than 16oz), used for packaging medicines, shampoo and cosmetics. One advantage of this process is the production of the bottles automatically go to the corner, without as a general blow molding processing as late finishing steps. Although there are some narrow MWD grades for improving the surface finish is generally used in a wide to a broad MWD grade. The main raw materials and typical formula

(L) the choice of a melt index of polyethylene ordinary l ~ polyethylene resin 6.

(2) common network selection polypropylene melt index of 2-4 polypropylene resin.

(3) Common use general-purpose polystyrene or impact polystyrene resin injection type.

(4) Hard transparent PVC bottle formulation.