HEATERS FOR PLASTIC MOLDING: HIGH QUALITY AND RELIABILITY
The plastic molding is a process that allows to realize plastic components through the use of a mold. Heaters for plastic molding are used to bring the molds to the suitable temperature for the process.
The main techniques of plastic molding are:
COMPONENTS AND HEATERS FOR THERMOFORMING PROCESS: CHOOSE THE QUALITY FOR YOUR BUSINESS
MDR Marca has decades of experience in the production of components and heaters for thermoforming, guaranteeing its customers the best in terms of quality and reliability.
Among the techniques of warm plastic molding stands out the thermoforming process, that takes place starting from sheets or films of granules of polystyrene or polypropylene, which can be under pressure or under vacuum.
This technique is often used when the number of pieces to produce is low (manual thermoforming), when the number of pieces to produce is high and the delivery times are restricted, when a large production flexibility is required and when you have to produce pieces wit the thickness walls very thin.
The thermoforming process starts with films or slabs that are warmed up by the heaters for thermoforming. Then they are passed, at an appropriate temperature, through a mold in which the desired object is forged by the pressure of the compressed air or of the atmospheric air, through very economic production equipment.
Another technique often used is the forming by extrusion, during which the material is pushed through an opening by means of a screw. The final form of the polymer (that flows in a continuous way) depends on the geometry of the opening. This process is used especially for thermoplastic materials and sometimes for thermosetting materials and to produce, for example, plastic tubes.
HEATERS FOR PLASTIC HEAT SEALING: MAXIMUM QUALITY FOR YOUR PLASTIC MANUFACTURING PROCESSES
MDR Marca has more than 10 years of experience in the field of plastics processing, especially producing heaters for plastic heat sealing.
The heat sealing process consists of the union of two flaps of plastic material, which will be heated and then joined together.
The processes of heat sealing may be divided into two main categories:
Heat sealing autogenous: the two edges of the joint are heated until it melts, thus joining the flaps with the material of the joint or with the aid of a filler material to it homogeneous;
Heterogeneous heat sealing or brazing: once heated, the joint below the melting temperature is melted with an heterogeneous filler material with a lower melting point.
The heat necessary to implement the process can be achieved with different systems, as for example through a flame produced by combustion of a gas with air or oxygen, through an electric arc which is formed between two electrodes, or through the use of heaters for plastic heat sealing.
Always engaged in the production and sale of a wide range of electric heaters, MDR Marca offers its customers components and heaters for plastic heat sealing that meet high standard of quality and safety.