Name of enterprise: Linyi St. Chen advertising material Co., Ltd.
Contact: Xiong Maolin
Address: Wang Cun, Lanshan District Shandong city of Linyi Province Wang Zhen Liu
PVC board specifications:
Runner and gate: PVC plate, all conventional gates can be used. If small parts are processed, it is better to use pin gate or submerged gate. For fans with PVC thickness, it is better to use fan gate. The minimum diameter of needle gate or submerged gate should be 1mm, and the thickness of fan-shaped gate should not be less than 1mm. Typical use: polyvinyl chloride (PVC) has rich raw materials (petroleum, limestone, coke, salt and natural gas), mature manufacturing process, low price, wide use and so on. It has now become the second largest general resin after polyethylene resin, accounting for 29% of the total consumption of synthetic resin in the world. PVC is easy to process, and can be processed by molding, laminating, injection molding, extrusion, calendering, blow molding and hollowing. PVC is mainly used in the production of plastic soft products such as artificial leather, film, wire sheath, water supply pipe, household pipe, house wall board, commercial machine shell, electronic product packaging, medical equipment, food packaging, and plastic hard products such as plates, doors and windows and valves.
Injection pressure: it can be as large as 1500bar for packing pressure: it can be as large as 1000bar injection rate: to avoid material degradation, we must use a considerable rate of injection.
Plate PVC materials are often added stabilizers, lubricants, auxiliary processing agents, pigments, impact agents and other additives in practical applications. It has no flammability, high strength, climate change and excellent geometric stability. The main advantages of the material are: light material, waterproof and moisture-proof, different from the plastic we see in our daily life, and the characteristics of flame retardant and heat insulation.
Chemical and physical properties:
Rigidity of PVC plate is one of the most widely used plastic materials. In fact, it is a vinyl polymerization material, and its material is a non crystalline material. In practice, materials such as stabilizers, lubricants, auxiliary processing plates, pigments, impact agents and other additives are often added. Plate is non combustible, high strength, excellent resistance to climate variability and geometric stability. It has strong resistance to oxidant, reducing agent and strong acid. PVC board, however, can be corroded by concentrated oxygen plate acid, such as concentrated sulfuric acid and concentrated nitric acid, and is not suitable for contacting with aromatic hydrocarbon and chlorinated hydrocarbon.
During processing, melting temperature is a very important technological parameter for a plate. If this parameter is improper, it will cause the problem of material decomposition. The flow characteristics of PVC are rather poor, and the process range is very narrow. In particular, material with large molecular weight is more difficult to plate on the PVC plate (this material is usually added to the lubricant to improve the flow characteristics), so it is usually used as a small molecular weight plate material. The shrinkage rate is quite low, and the general PVC plate is 0.2~0.6%.
Process condition plate of injection mould
Drying treatment: PVC boards usually do not need drying.
Melting temperature: 185~205 C mold temperature: 20~50 C
Can be divided into soft and hard. Among them, the hard market is about 2/3, and the soft P accounts for 1/3. Soft generally used in the floor, the PVC ceiling and the surface of the leather, but because soft PVC contains softener (this is also a soft and hard difference), easy to become brittle, not easy to preserve, so the scope of its use is limited. Hard without softeners, therefore, it is flexible, easy to form, brittle, non-toxic, non polluting, and has long storage time, so it has great development and application value. The following are abbreviated for short. The essence is a vacuum plastic film, which is used for surface packing of all kinds of panels.
It is called decorative film and adhesive film, it is applied to many industries, such as building materials, packaging, medicine and so on. The largest proportion of building materials industry is 60%, followed by the packaging industry. There are also a number of other PVC industries.
Width: 6cm, 10cm, 16cm, 18cm, 20cm, 25cm
Thickness: 4.5mm, 5mm, 6mm, 7mm, 7.5mm, 8mm, 9mm, 9.5mm, 11mm.
Surface treatment of PVC board:
Printing, peels, transfer
Puguang, Gao Guang, roll coating, pearlite PVC board