Plastic Molding and Industry Changes
Plastic Molding are very important components of the industry and are closely associated to daily life. They are structures such as pipes, bottles and vessels capable of holding internal pressure, cars, hous cooking, everything the world that can not leave without plastic parts. Every industry small, medium, large or very large needs plastic molds and custom injection molding parts. Boilers are used for producing power. There are heat exchangers used in many industrial applications. Take the name of any industrial sector there oil tanks, pipelines, compressors for supplying compressed air for cleaning, pnuematic systems for instrumentation, pneumatic conveying sytems for transportion of solid, liquid and gaseous materials in the industry. Oil and gas industry, aerospace industry, marine industry, refrigeration and air conditioning systems use pressure vessels.
Safety issues with plastic injection molding
injection moldings are associated with lots of safety risks. Any explosion of pressure vessel can be very dangerous to the workers and plant and machinery. There have been serious accidents in power houses, cement plants, steel plants, chemical plants and aerospace industry resulting lots of losses of human lives and to the industrial assets. Airplane cabins is a familiar examples of the pressure-containing structures. The atmosphere inside the cabin relative to the thin air outside is a serious threat to the airplane if cracks are developed. Number of fatal tragedies have occurred from this problem. The famous tragedy is of disintegration of Comet aircraft in flight in the 1950s is still fresh in memory. The loss of a 5-meter section of a roof of the first-class section of an Aloha Airlines B737 in April 1982 is another important case showing the gravity of the dangers associated with the pressure vessels.
Pressure vessel suppliers are very concerned to determine the stresses and deformations in structures such as these as it will be the crucial measure for the safety of structures as the first step in designing against failure.
Need for industry standards, code and enforcing agencies
The gravity casting of the consequences of damages to human life and property and the inconvenience they cause to the society is well understood by the manufacturers of plastic parts and metal parts. They are keen to adopt foolproof design of systems and components, selecting the right materials of construction and latest technologies in manufacturing the safe pressure vessels. Strictly following the industry standards and codes involving competent inspections in obtaining the right materials, inspection during the manufacturing and final inspection after the product is ready for use are of utmost importance for the manufacturers of plastic molding parts and metal parts. The safety of plastic injection molding is not the concern of only the manufacturers of the plastic molds but is for every one involved in the process like suppliers of the materials, equipment, instruments, testing agencies and enforcement bodies.