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WHY PLASTIC BAGS SHOULD BE BANNED
WHY PLASTIC BAGS SHOULD BE BANNED
Plastic bags are everywhere in our environment. When we go to purchase our groceries, we use plastic bags because they are convenient. In fact, in our modern lifestyle, it...
PET PREFORM INJECTION MOLDING
PET IN INJECTION MOLDING
PET bottles are a huge market for the material. Processing PET into bottles can take two steps depending on the application or bottle. In the first step, PET is injection molded...
HEAT TRANSFER AND AIR CONDITIONING
HEAT TRANSFER AND AIR CONDITIONING
Introduction:
According to second law of thermodynamics, heat transfer or heat flow takes place from a body at a higher temperature to a body at lower temperature. Following are the three...
TROUBLE SHOOTING IN CALENDARING PROCESS
TROUBLE SHOOTING IN CALENDARING PROCESS
Calender sheet surface from various faults and deficiency in properties:
1) Compound formulation: The use of wrong ingredients or wrong quantities.
2) Pre-Mixing: Inadequate compounding caused by insufficient mixing too low a...
INJECTION MOLDING PROCESS FAULT & REMEDIES
INJECTION MOLDING PROCESS FAULT & REMEDIES
Air traps (voids & bubbles):
An air trap is air that is cut inside the mold cavity. It becomes trapped by converging polymer melt fronts or because it failed to...