PVC board molding characteristics

 　Among the materials that can produce three-dimensional surface film, PVC board is a more suitable material. Specific gravity: 1.38 g/cm3, molding shrinkage rate: 0.6-1.5%, molding temperature: 160-190°C.

　　PVC board molding characteristics:

　　1. Easily decompose, and steel at a temperature of 200 degrees. Copper contact is easier to decompose, and corrosion will escape when it is decomposed. Irritating gas. The molding temperature range is small.

　　2. When using screw injection machine nozzles, the aperture should be large to prevent dead ends from stagnating. Fortunately without inserts, if there are inserts, they should be preheated.

　　3. Amorphous material, low moisture absorption, poor fluidity. In order to improve fluidity and prevent bubbles from occurring, the plastic can be pre-dried. The mold gating system should be short and thick, and the gate section should be large, and there should be no dead corners. The mold must be cooled and the surface is chrome plated.

　　4. Due to its corrosive and fluid characteristics, special equipment and molds can be used. All products must be added with different types and quantities of additives according to needs.

　　The full name of PVC board is Polyvinylchlorid. The main component is polyvinyl chloride. It has bright color, corrosion resistance and durability. Due to the addition of plasticizers, anti-aging agents and other toxic auxiliary materials in the manufacturing process to enhance its heat resistance and toughness , Ductility, etc., so its products generally do not store food and medicine.

　　PVC board is a kind of synthetic material that is well-loved, popular and widely used in the world today. Its global usage ranks second among various synthetic materials. According to statistics, in 1995 alone, the production of PVC sheets in Europe was about 5 million tons, while its consumption was 5.3 million tons.