Sesetengah produk kilang acuan suntikan dibentuk dengan PC (polikarbonat) atau PC + bahan ABS. Disebabkan ketidakstabilan PC yang lemah, Disebabkan ketidakstabilan PC yang lemah: Disebabkan ketidakstabilan PC yang lemah, and graded injection molding is required to find the gate position and injection pressure maintaining switching position, It will be very helpful to solve the gate gas mark and flash anomaly.
Oleh itu, if our injection mold factory wants to make a good mold product, we need to pay special attention to the injection molding process, and in the previous articles, we have also handed in the convenient process of product molding through product design and mold design, and the injection molding process is a key step in the process. We need to pay attention to the setting of molding parameters such as solution temperature, suhu acuan, injection speed and back pressure.
1、 Melting temperature and mold temperature
Molding temperature setting is related to many factors, such as the size of injection molding machine, screw configuration, mold and molded product design and molding cycle time. Secara amnya, in order to melt the plastic gradually, set a slightly lower temperature at the rear section / feed of the feed pipe and a higher temperature at the front end of the feed pipe. Walau bagaimanapun, if the screw is not designed properly or the L / D value is too small, the reverse temperature setting is also feasible.
Mold temperature setting skills: high temperature mold can provide a better surface appearance, the residual stress will be relatively small, and it is also good to fill thinner or longer molded products. The advantage of low temperature mold is that it can shorten the molding cycle.
2、 Kelajuan suntikan
The injection rate is closely related to the design of gate. When using direct gate or edge gate, a slower injection rate shall be applied to prevent sunlight and wave flow mark. Sebagai tambahan, if the thickness of the finished product is more than 5mm, slow injection is helpful to avoid blistering or depression. Secara amnya, the principle of fire speed is that thin is fast and thick is slow.
When switching from injection molding to pressure holding, the pressure holding pressure shall be as low as possible to avoid residual stress of molded products. The residual stress can be removed or reduced by annealing under the condition of 120 ℃ to 130 ℃ untuk 30 minutes to 1 hour.
The above is how the injection mold factory solves the possible problems of products through the injection molding process. If you want to know more about mold injection molding, anda boleh log masuk ke laman web rasmi Dj molding, di mana terdapat pelbagai kes pemprosesan untuk rujukan, dan nantikan kunjungan anda!
ia mungkin terjejas selepas memasang rod condong, Ltd.
Dj Cetakan 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: ia mungkin terjejas selepas memasang rod condong,. Ltd.
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/
