Polymer Tech

AED Explosive decompression also known as Rapid gas decompression is a structural failure in the form of blistering, internal cracking that occurs due to gas permeation into the sealing material. SEAL EXTRUSION Seal extrusion occurs when a gas or liquid at high pressure forces the seal material into the clearance gap between the  mating surfaces. The greater the diametric clearance and the higher the differential pressure, the more likely extrusion will occur. Weakening of the polymer due to elevated temperature and/or chemical attack or swelling also influences potential for seal  extrusion. The rubber seals contains pores and rigid inclusion during the production,fluids and gases in contact with elastomer surfaces are absorbed into the material. The absorbed gas diffuses into the elastomer until fully occupied. During high pressure the gas which is absorbed will be in the compressed state. When the external pressure is suddenly reduced the compressed gas exp...

Automotive Hoses  The hoses used in automobiles are  coolant hoses, power steering hoses , fuel hoses. air conditioning hoses,oil cooler hoses  Coolant Hoses The Coolant hose is the critical and important part of the automotive engine.As the IC engine runs so hot a fluid called coolant is needed to circulate throughout the engine. The coolant basically picks up and carries the heat  with it into the radiator, where cooler outside air dissipated the heat. The hose is therefore required in larger size to carry coolant into and out of the radiator, as well as in smaller sizes along the intake manifold. Coolant Hose The Coolant hose is the critical and important part of the automotive engine.As the IC engine runs so hot a fluid called coolant is needed to circulate throughout the engine. The coolant basically picks up and carries the heat  with it into the radiator, where cooler outside air dissipated the heat. The hose is...