Berkilau rendah bermaksud permukaannya gelap dan kusam, dan ketelusan produk telus rendah. Terdapat banyak sebab untuk kurang berkilau. Secara amnya, kecacatan permukaan permukaan boleh dibahagikan kepada tiga jenis: kegagalan acuan plastik, keadaan pembentukan yang tidak betul dan penggunaan bahan mentah yang tidak betul.
Kegagalan Acuan Suntikan
Kerana permukaan bahagian plastik adalah kemunculan semula permukaan rongga acuan plastik, jika ada calar, kakisan, micro-holes and other defects on the surface of plastic mold, it will be copied on the surface of plastic parts, resulting in bad gloss. If the surface of the cavity is oily and moist, the surface of the plastic parts will be darker. Oleh itu, the surface of the cavity of the plastic mould should have a good smoothness. The surface of the die cavity must be kept clean and oil and water stains should be removed in time. The type and amount of release agent should be appropriate.
The temperature of plastic mould also has a great influence on the surface quality of plastic parts. Secara amnya, different types of plastics have different surface glossiness under different temperature conditions, and injection mould temperature can not be too high or too low, which may lead to poor glossiness.
Sebagai tambahan, the plastic mold demoulding slope is too small, the thickness of the cross-section changes abruptly, the ribs are too thick and the gate and runner cross-section is too small, the shearing effect of the gating system is too large, the plastic mold exhaust bad and other faults will affect the surface quality of the plastic parts, resulting in poor surface gloss.
Improper use of raw materials
Inadequate raw materials can also lead to poor surface gloss of plastic parts.
Reasons: The excessive moisture content in the forming material and the condensation of volatile components in the cavity wall and the forming process of the plastic mould lead to the poor surface gloss of the plastic parts. Processing method: raw materials should be pre-dried.
The discoloration of raw materials or colorants results in poor gloss. High temperature resistant raw materials and colorants should be used.
The fluidity of raw materials is too poor, the surface of plastic parts is not compact, and the gloss is poor. Replace resin with better fluidity or add appropriate amount of lubricant and increase processing temperature.
When magazines are mixed in raw materials, new materials should be replaced in time.
Improper forming conditions
If the injection speed is too fast or too slow, the injection pressure is too low, masa pegangan terlalu singkat, the supercharger pressure is not enough, the nozzle hole is too small or the temperature is too low, the dispersion of fiber reinforced plastics is too poor, the cylinder temperature is too low, leburan tidak terplastis dengan baik, and the supply is insufficient, keadaan ini boleh menyebabkan kilauan permukaan bahagian plastik yang lemah. Atas sebab-sebabnya, kita harus menganalisis sebab-sebab tertentu, dan kemudian buat pelarasan yang sepadan.
Mengenai JasonMould Industrial Company Limited
Jasonmould adalah Pembuat acuan China dari acuan plastik- acuan suntikan, acuan pemutus mati, acuan plastik, acuan putaran, perubatan pengacuan suntikan plastik, dua pukulan pengacuan suntikan plastik, masukkan acuan, terlalu banyak, pengacuan suntikan logam, pengacuan suntikan mikro, pengacuan suntikan serbuk, pengacuan suntikan seramik, pengacuan suntikan cecair, acuan suntikan husky, acuan isi rumah, acuan pemutus, alat acuan mati, acuan khas, acuan cina, perkakas prototaip pantas, perkakas prototaip plastik, perkakas penebuk, mati dan perkakas untuk bahagian telefon bimbit / telefon bimbit, bahagian automotif, pembersih vakum, alat yang boleh dicas semula, telefon, mesin penyalin, komputer, pembesar suara multimedia, dan banyak produk elektronik dan perkakas rumah yang lain. Dan juga pengeluar produk plastik, pengeluar acuan China- bahagian plastik, tangki air plastik, bola plastik, bekas plastik, gesper plastik, sauh plastik, penyangkut plastik, sudu plastik, pemasangan paip plastik, plastik jatuh, pinggan mangkuk plastik, cawan plastik, botol plastik, dulang plastik, bekas kosmetik plastik, sarung plastik, bekas makanan plastik, kerusi plastik, penutup plastik, penutup penutup plastik, tiub plastik, paip air plastik, tombol plastik, tiub plastik, kotak utiliti plastik, rak plastik dan sebagainya.
Hubungi:
Orang: James Yuan
Syarikat: JasonMould Industrial Company Limited
Tambah: Kampung LongGang,Bandar LongXi,Daerah BoLuo,Bandar HuiZhou,Wilayah GuangDong, China
Tel: 86-752-6682869
E-mel: [email protected]
Tapak: https://www.jasonmolding.com/custom-injection-molding/
