Technical Papers Plastics
Developments in ancillary equipments help achieve reduced cycle time, save energy

Developments in ancillary equipments help achieve reduced cycle time, save energy

04-Jul-13

Renowned manufacturer of resistance welding products, continuous casting mould plates, electrical switchgear contacts, plunger tips, plastics mould materials, EDM electrodes and tungsten copper powder metallurgy products, Mipalloy provides solutions to the plastics industry for achieving reduced cycle time. The company's Mipalloy 100 andMipalloy 4 are ideal materials of choice for injection and blow moulding applications. With thermal conductivity that is almost 10 times greater than tool steels, Mipalloy 100 offers faster, more uniform heat dissipation. This implies 20% shorter cycle times. With application in injection cores, core pins, inserts, cavities & blow mould cavities, slides, chill plates, thermoforming cavities and rotational moulding inserts, superior quality copper alloys play an important role in the plastics industry. The company will be an exhibitor at Plastivision India 2013 and intends to showcase its competence in handling the red metal. It plans to increase awareness about Mipalloy 4 (2% beryllium copper) and Mipalloy 100 (nickel silicon chromium copper) as plastics mould materials to prospective customers.

A new range of energy-saving compact dryers will be introduced by Shini Plastics Technologies India Pvt Ltd at Plastivision India 2013. The dryer combines dehumidifying, drying and conveying all into one unit. It employs an advanced honeycomb rotor as adsorbent and achieves dry air with stable low dew-point temperature. Unlike the traditional cylinder or disc-type molecular sieve, the honeycomb rotor does not age and produce particles, which can be blown to the material tank and cause contamination. The drying hopper is designed with a down-blowing structure with which the hot air is evenly dispersed from bottom up and helps quickly dry the material. These are suitable for processing engineering plastics with high hygroscopicity, eg polyamide, polycarbonate, polybutylene terephthalate and polyethylene terephthalate. Three features of this new range are as follows:

Settable dew-point temperature : Can be set according to raw material needs. This reduces the power consumption by up to 10 per cent and prevents the raw material from over-drying, which may result in reduced performance of the final product. Programmable variable drying capacity function : The drying capacity can be pre-programmed for different raw materials and fed into the machine by selecting the raw material and the dosage per hour, saving up to 40% energy. Return-air heat exchangers: The heat exchangers on the intake air line of both dryer and dehumidifier pre-heats the inlet air, recycling the heat and results in savings of up to 20% energy. Thus, the whole unit results in overall savings of up to 70%.

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