Growing PET Industry in India

Though the Indian economy faced a meltdown during the inflation of 2009, it after regaining its strength has shown a tremendous advancement in all the sectors of economy. One such sector to grow out big is Plastics. Growing at a rate of 13 per cent, the industry that serves almost every other sector of Indian is expected to maintain its double digit growth in the coming years as well.

Studies show that India alone is growing market for plastics and consumer of about 11 million tons against global consumption of 275 million tons per year. The consumption should increase to 16 million tons by 2020. This means that the use of plastics will tremendously increase giving opportunity to manufacturers to step into this field of production.

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Scientific Injection Molding is a Breakthrough

There has been increase in the demand of dimensionally stable and accurate parts/components in the medical sector using PET bottle moulds. Many medical components have checked the developments in injection molding and strive to incorporate it manufacturing precise medical equipment. Tight tolerance of the mould walls, dimensionally correct measurements of the equipment are a few characteristics that needs to be taken care of while designing molds particularly for medical sector. The Scientific Injection Molding (SIM) is the solution to all the measurement related problems while mould making.

The SIM technique strives to make the most of the recent pet preform injection moulding machine in India and their procedures. The technique of scientific injection molding can be easily worked with thermoplastic materials, unconventional materials like silicon, rubber, thermoset plastics etc. The SIM is not a fixed process and is highly variable, and is dependent upon the nature of the device to be manufactured. The tweaking of the present injection molding practices has evolved the technique all the more. However, manufacturing robust SIM is a time taking process and elevates the need of process engineers to take following factors into consideration:

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How hot runner system reduces cost?

A hot runner system is an integration of heated components used primarily in plastic injection molds. It helps inject molten plastic into the hollow cavities of the mold. Where as, a cold runner system is simply a channel in between the two halves of the mold, designed to carry plastic from the injection molding machine to the cavities.

Every time the mold opens up to eject the newly formed plastic parts, the runner material is ejected too. This result in the wastage of the plastic deployed. On the contrary, a hot runner system includes a heated manifold. The primary purpose of the heated manifold is to allocate the plastic entering in the mold to the various nozzles and measure the injection points in the cavities.   Read more