Test Background
The temperature resistance test is mainly to check the actual performance of plastic parts in high temperature or radiant heat or low temperature environment. Different raw materials are tested at different temperatures. Generally speaking, before the test, the parts need to be inspected by hand for dimensional measurement, visual inspection, looseness, hardness, etc. of the specified parts.
The temperature resistance test of automotive plastic products can determine the actual performance of the product under high and low temperatures and alternating high and low temperatures.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various plastics and provides professional temperature resistance testing services for automotive plastic products.
Scope of tests
1. Polycarbonate plastic: lamps, instrument signs, sun visors, window glass, bumpers, etc.;
2. RIM plastic: bumpers, radiator grilles, spoilers, fenders, etc.;
3. Polyethylene plastic: damping materials for fenders, ceilings and doors, trunk mats, air ducts, gasoline tanks, etc.;
4. Polyvinyl chloride plastic: instrument panel cover, car roof lining, rear cover skin, spare tire cover, steering wheel, bumper cover, wire coating, etc.;
5. Polypropylene plastic: heating and ventilation systems, cabins, engine compartments, car bodies, light housings, tool boxes, wire terminals, junction box covers, silencers, etc.;
6. ABS plastic: rear fenders, instrument panels, radio covers, air exhaust pipes, steering wheel horn covers, grilles, rear guards, upper ventilation covers, wheel covers, blinds, brackets, mirror frames, etc.;
Test method
1. Heat resistance test
1) Conventional heat resistance test: Place the product under high temperature or radiant heat conditions and check its status;
2) Ultimate heat resistance test: determine the ultimate temperature of product state change;
2. Cold resistance test: Place the product under low temperature conditions to check its status;
3. Hot and cold alternating test: The product undergoes a hot and cold alternating test to check its condition;
Test standard:
QC/T 15-1992 General test method for automotive plastic products
G209 industrial sodium hydroxide
G252 light diesel
G435 gasoline engine oil
GB 484 car gasoline
G534 industrial sulfuric acid
GB 2918 Standard environment for conditioning and testing of plastic specimens
G5671 automotive general potassium-based grease
JB 3979 Automobile steering wheel test method
QC/T 17 General rules for weather resistance testing of automobile parts
SY 4005 No. 4604 synthetic brake fluid
