Thermoplastic injection molding

PBTPA66PPS

Welcome to wholesale the high quality policarbonate injection molding for headlight made in China from our factory. As one of the leading manufacturers and suppliers in China, we are equipped with advanced equipment and technology. Please be free to get the customized products from us.Product Namepolicarbonate injection moldingMaterialPA66/PA6/PBT/PC/policarbonate injection molding/PP/PPS/POM with GF/FR/Toughening agentColorCustomizeCertificationISO9001, SGS, CTI, ROHSMould materialP20/718/738/NAK80/S136Mould baseLKM Mould BaseTypical application Automotive (mostly policarbonate materials filled with minerals: automotive instrument panel accessories, ventilation pipes, fans, etc.) Appliances (Dishwasher door fittings, dryer vents, laundry and washing machine covers, inside the refrigerator)Consumer goods (lawn/garden supplies, lawn mower accessories, sprinklers/cars)Injection molding processing conditions:Drying: usually not required if stored properlyMelting temperature: 220 -275°C (428 -527°F); do not exceed 275°CMold temperature: 40 -80°C (104 -176°F); Recommendation: 50°C (122°F) crystallization grade depends on mold temperatureInjection pressure: up to 1,800 bar (26,000 psi)Injection speed: use fast injection speed to minimize internal stress; if the surface is bad, use high temperature and low speed molding.Runners and gates: If cold runners, diameters range from 4 -7 mm. It is recommended to use full round inlets and runners. Any type of gate can be used. Usually needle gates range from 1 - 1.5mm, but also can be used with a diameter of 0.7 mm. For latent feeding, the minimum gate depth should be half the thickness of the product, and the width should be at least double the thickness. The hot runner is more suitable for forming policarbonate raw materials.Chemical and physical properties of policarbonate injection moldingPolicarbonate is produced by propylene polymerized using a stereotactic catalyst. This linear plastic is semi-crystalline due to its ordered molecular structure. It is harder than PE material and has a higher melting point. Policarbonate homopolar polymer is higher in temperature. 0°C (32°F) becomes brittle, and for this reason many commercial grades are free heterogeneous molecular polymers policarbonate injection molding (with 1-4% ethylene). Heteromeric molecular polymers have lower heat distortion temperatures (approximately 100°C / 212°F), low transparency, gloss and hardness but strong impact strength. The raw material becomes harder with increasing ratio of ethylene. The softening point is about 150°C (302°F). High grade, surface hardness and scratch resistance of policarbonate injection molding are higher for these materials.Policarbonate injection molding does not cause environmental stress cracking. Policarbonate MFR ranges from 1 to 40; lower MFR materials have better impact strength but lower tensile strength. Heteromeric molecular polymers are more than equivalent MFR homopolar compounds. Hard. Due to crystallinity, shrinkage is relatively high (0.018 -0.025 mm/mm or 1.8 -2.5%). Shrinkage of policarbonate injection molding is more uniform than PE-HD. Increasing 30% of glass reduces shrinkage by about 0.7%. Heteromeric polymer policarbonate has good moisture resistance and acid resistance, alkali resistance and solvent resistance chemical ability with the same polar compound policarbonate. However, policarbonate injection molding has no resistance to aromatic hydrocarbons such as benzene and chlorinated hydrocarbons such as carbon tetrachloride.Product Name: policarbonate injection moldingMaterial: PA66/PA6/PBT/PC/policarbonate injection molding/PP/PPS/POM with GF/FR/Toughening agentColor: CustomizeCertification: ISO9001, SGS, CTI, ROHSMould material: P20/718/738/NAK80/S136Mould base: LKM Mould BaseTypical applications: Automotive, Appliances, Consumer goodsProcessing conditions: Melting temperature 220-275°C, Mold temperature 40-80°C, Injection pressure up to 1,800 bar, Fast injection speed recommendedChemical/physical properties: Semi-crystalline, high melting point, good impact strength, high surface hardness, good moisture/acid/alkali/solvent resistance, not resistant to aromatic/chlorinated hydrocarbons