Temperatura matriței din plastic are o mare influență asupra calității turnării produsului, care este una dintre cele trei condiții majore de proces ale turnării prin injecție. Pentru turnare prin injecție de precizie, nu este doar problema temperaturii ridicate și scăzute, dar și problema preciziei controlului temperaturii. Evident, în procesul de turnare prin injecție de precizie, dacă controlul temperaturii nu este precis, the fluidity of plastic melt and the molding performance and shrinkage of the product will not be stable, so the accuracy of the finished product can not be guaranteed. În general, the temperature control box, heating ring and other system combination methods are used to control the mold temperature.
1. There are several ways to heat or cool the mold of plastic mold. Steam, hot oil circulation, hot water circulation and resistance can be used to heat and raise the temperature of the mold. Cooling water or air can be used to cool the mold. Resistance heating and cooling water circulation cooling are widely used in the temperature regulation of injection mold. When heating the mould by resistance, the flat part is heated by resistance wire, the cylinder part is heated by electric heating coil, and the mould body is heated by electric heating rod. The cooling part of the mold needs to be cooled by arranging the circulating water pipe. The resistance heating and cooling water circulation work alternately according to the specific temperature conditions of the die, so that the die temperature is controlled within the temperature range required by the process.
2. Precautions for mold temperature control:
(1) After heating, the temperature of each part of the molding mold should be uniform to ensure that the molten material has better filling quality, so that the molding quality of the injection products can be guaranteed and the qualified rate of the injection products can be improved.
(2) The specific process temperature adjustment should be determined by the viscosity of the melt. When the melt with higher viscosity is injected into the mold, the specific temperature of the mold should be adjusted slightly higher; The temperature of the mold can be reduced by filling with lower viscosity melt. In preparation for injection production, the mold specific temperature is within the range of process requirements. In order to ensure the uniform temperature of the mold, the mold with the required temperature should be kept constant for a period of time.
(3) During injection molding of large plastic products, due to the large amount of molten material and the small flow path of molten material, the large mold should be heated and moisturized at the flow path of molten material, so as to prevent the molten material from cooling when flowing due to the long flow path of molten material and increase the viscosity of molten material, so as to slow down the flow of molten material, affect the filling quality of molten material injection mold, and cause the molten material to cool and solidify in advance, The injection work of the injection molding machine can not be carried out.
(4) In order to reduce the temperature drop of molten material and increase the heat loss due to the long molten material flow path, a heat insulation and moisturizing layer should be added between the low temperature part of the mold cavity and the high temperature part of the molten material flow path.
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Despre JasonMould Industrial Company Limited
Jasonmould este un Producător de mucegai din China a matrițelor din plastic- matriță de injecție, matrițe de turnare sub presiune, turnare prin suflare din plastic, turnare prin rotație, medical turnare prin injecție a plasticului, doi împușcați turnare prin injecție a plasticului, turnare cu inserție, supraformare, turnare prin injecție a metalelor, turnare prin injecție micro, turnare prin injecție cu pulbere, turnare prin injecție ceramică, turnare prin injecție de lichid, turnare prin injecție husky, mucegai de uz casnic, mucegai de turnare, unealtă pentru matriță, matrite la comanda, mucegaiuri din china, scule de prototipare rapidă, scule de prototipare din plastic, scule de presare, matriță și scule pentru piese de telefon mobil / mobil, piese auto, aspiratoare, instrumente reîncărcabile, telefoane, copiatoare, calculatoare, difuzoare multimedia, și multe alte produse electronice și electrocasnice. Și, de asemenea, un producător de produse din plastic, producător de mucegai China- componente de plastic, rezervor de apă din plastic, bile de plastic, containere de plastic, cataramă din plastic, ancoră din plastic, cuier din plastic, lingura de plastic, racord de țevi din plastic, cadere din plastic, Veselă din plastic, pahare de plastic, sticle de plastic, tava de plastic, recipient pentru cosmetice din plastic, Cutie de plastic, recipient de plastic pentru alimente, scaune din plastic, capace din plastic, închidere capac plastic, tuburi din plastic, conducte de apă din plastic, butoane din plastic, tuburi din plastic, cutii utilitare din plastic, rafturi din plastic și așa mai departe.
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Persoană: James Yuan
Companie: JasonMould Industrial Company Limited
Adăuga: Satul LongGang,Orașul LongXi,Județul BoLuo,Orașul HuiZhou,Provincia Guangdong, China
Tel: 86-752-6682869
E-mail: [email protected]
Site: https://www.jasonmolding.com/custom-injection-molding/
