The polymer is usually extruded into a tubular membrane billet, which is blown to the required thickness by high-pressure air in a good melt flow state and then formed into a thin film after cooling and shaping.
The flow is extruded through the T-shaped structure forming mold and extended to the roll surface of the smoothly rotating cooling roller. The film is cooled and shaped on the cooling roller, and then the product is rewound after traction and trimming.
Plastic raw materials were drying after joining hopper, raw materials into the cylinder screw in the screw groove, the screw revolve to be forced on the nose, plastic is come out with a viscous flow diaphragm material immediate access to the cooling water tank for rapid cooling to finalize the design into a thin film, through the cross cut after two groups of the back of the oven heat treatment, hot plate under the action of tensile traction, flat wire stretched molecular orientation effect, make flat wire longitudinal strength increases, and winding.
The thermoplastic or thermosetting materials using plastic molding mold into various shapes of plastic products of the main molding equipment, injection molding is through the injection molding machine and mold to achieve.
After the polymer is extruded and stretched to form continuous filament, the filament is laid into a net, and the fiber net is then bonded by itself, thermal bonding, chemical bonding or mechanical reinforcement to make the fiber net into non-woven cloth.
A process in which the material is thermoplasticized while being pushed forward by the screw through the action of the extruder barrel and the screw, and is continuously made into various cross section products or semi-finished products through the machine head.
Thermoplastic resin by extrusion or injection molding to get the tubular plastic billet, while hot (or heating to the softening state), placed in the fold-open mold, mold closed immediately after the billet into the compressed air, so that the plastic billet blown and close to the mold wall, after cooling off, that is, to get all kinds of hollow products.
The foaming methods of plastics can be divided into physical foaming method, chemical foaming method and mechanical foaming method according to the different foaming agents.
It is specially designed to help planting, animal husbandry, fishery products, and producers to formulate crop protection products.
Long Chang Petro Chemical is a long-term supplier to the healthcare industry with highly specialized products and focused technical service. Our polymers have been developed and tested for properties specifically required for medical and pharmaceutical applications.
Public Works constructs, manages, designs, maintains and repairs buildings and infrastructure. Navigate through our projects below and take a look at our portfolio.
A traditional list of immediate "basic needs" is food (including water), shelter and clothing. Many modern lists emphasize the minimum level of consumption of 'basic needs' of not just food, water, clothing and shelter, but also sanitation, education, and healthcare. Different agencies use different lists.
The main materials used for making cars, parts and components, along with future trends, are steel, aluminum, magnesium, copper, plastics and carbon fiber.
Woven polypropylene consists of PP plastic threads that are woven together, creating a durable material with a great deal of flexibility and strength. ... The resulting fabric can be used to create all kinds of products from tarpaulins to container bags, woven bags, geotextile fabrics, and other such types of materials.
Packaging is the science, art and technology of enclosing or protecting products for distribution, storage, sale, and use. Packaging also refers to the process of designing, evaluating, and producing packages. Packaging can be described as a coordinated system of preparing goods for transport, warehousing, logistics, sale, and end use. Packaging contains, protects, preserves, transports, informs, and sells.