Rotational molding English ROTOMOLDING referred to as ROTO
Rotational molding, rotary molding, rotary molding, etc., is a thermoplastic hollow molding method. The method is to add plastic raw materials into the mold first, then the mold is continuously rotated along two vertical axes and heated, and the plastic raw materials in the mold are gradually and evenly coated and melted and adhered to the mold cavity under the action of gravity and heat energy. On the entire surface, it is shaped into the desired shape, and then cooled and shaped to form a product.
Rotational molding technology application
At present, rotomolding products can be used in vehicles, traffic safety facilities, entertainment facilities, dredging of rivers and waterways
dredging, construction, water treatment, medicine and food, electronics, chemical industry, aquaculture, textile printing and dyeing and other industries.
1. Rotary molding of containers, this kind of plastic products are widely used in water storage tanks and storage tanks of various liquid chemicals (
Such as acid, alkali, salt, chemical fertilizers, pesticides, etc.), oil containers (gasoline and diesel storage tanks and fuel tanks for automobiles and aircraft, etc.)
), battery case, etc.
2. Rotational molding for automobiles, mainly using polyethylene and polyvinyl chloride paste resin, rotationally molding various pipe fittings, such as empty
Air pipes, filter boxes, backrests, armrests, etc.; vehicle fuel tanks (gasoline and diesel, hydraulic oil tanks, etc.).
3. Sports equipment and various substitutes. There are mainly various parts of PVC rotational molding, such as water polo, floating ball, car
Use cushions, boats and cushioning shock absorbers between boats and docks, dock floats, etc. Surfboards, kayaks, etc.
It is also a rotational molding product.
4. Industrial environmental protection waste sewage recovery storage tanks and civil wastewater recovery and treatment equipment and other facilities.
5. Toys, models, crafts, etc. Since the rotary forming mold can adopt precision casting, electroforming and other processes
Manufacture; the surface of the rotomolded product is very effective in “replicating” the fine structure of the mold cavity surface, so the rotomolding process
The art can make the products quite exquisite and beautiful, and the simulation effect is good, so it is often used to make products with great ornamental value.
Products, especially toys, simulated animal models, handicrafts, etc.
In addition to the above, rotational molding products are widely used in various storage and transportation boxes, shells, large pipes, etc.
Parts, such as turnover boxes, dustbins, machine casings, protective covers, lampshades, bathrooms, toilets and telephone rooms, swimming pools
boat and so on. Rotary molding products are used in the storage and transportation of liquid chemicals, chemical enterprises, industrial coating, and rare earth production
Washing tanks, reaction tanks, etc., as well as river and sea buoys, domestic water tanks and other fields have been widely used.
Post time: Dec-05-2022