early in the development phase of a product, design flaws are identified and improved mainly through experimentation, and then new problems are identified through further testing. experience shows that about 70% of the design defects can only be found by testing the prototype. the test is not only a powerful measure to improve the design of the product development and production process, but also an essential means to evaluate whether the product characteristics meet the requirements.
products are subjected to various environmental factors (including natural environment and induced environment) in the whole life process of manufacturing, storage and transportation, and deployment and use, especially the environmental conditions in the use phase are usually harsh, through long-term practice, people realize that environment and product reliability are closely related and play a key role and influence, and environmental technology is the basis of product reliability test, and proper and effective use of environmental technology is conducive to improving the reliability of products.
environmental test is a test to assess the adaptability of the product to the expected working environment ; reliability test is designed and improved according to the reliability requirements, with reliability objectives and tests under typical environmental conditions.
noa has a central laboratory of 30,000 ㎡ and has obtained cma and cnas qualifications. through experienced technicians, we provide detailed technical consulting solutions and offer a variety of complete testing experiments to ensure accurate and reliable test results.
the physical laboratory is constructed with experimental capabilities of mechanical properties, light aging resistance, weather resistance, corrosion resistance,thermal properties, combustion properties, etc. to provide customers with analysis and testing services.
1. service products
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service products |
common products |
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steel materials |
carbon steel, stainless steel, heat-resistant steel, alloy steel, cast iron, etc. |
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special metal materials |
functional alloys, metal matrix composites, etc. |
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other metal products |
profiles, plates, wires, tubes, fasteners, castings, automotive parts, machinery and equipment and parts, etc.
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non-ferrous metals |
aluminum and aluminum alloys, copper and copper alloys, etc. |
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non-metallic materials |
plastics, rubber, coatings, plating, adhesives, tapes, etc. |
2. project classification
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project classification |
test items |
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environmental reliability |
high and low temperature test, constant humidity and heat test, alternating humidity and heat test, dustproof, waterproof test, ip protection level. |
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salt spray test |
neutral salt spray test (nss test), acetate spray test (ass test), copper salt accelerated acetate spray test (cass test), alternating salt spray test. |
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weather resistance |
heat resistance, freeze-thaw resistance, impact resistance, abrasion resistance, yellowing resistance, light aging resistance, alkali resistance, acid and alkali resistance, stain resistance, scrub resistance, salt spray resistance, humidity and heat resistance, liquid medium resistance, water resistance. |
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aging test |
uv aging test, hot and humid aging test, hot and cold shock test, hot air aging test, salt spray aging test, xenon lamp aging test, gas corrosion test, walk-in constant temperature and humidity test chamber test, ozone aging test, carbon arc lamp aging test, high and low temperature aging test. |
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fatigue testing |
high circumference fatigue, low circumference fatigue, room temperature fatigue, low temperature fatigue, high temperature fatigue, thermal fatigue, corrosion fatigue, contact fatigue, micro- action wear fatigue, tensile fatigue, bending fatigue (rotational bending fatigue, three-point bending fatigue, four-point bending fatigue, cantilever bending fatigue), twisting fatigue, compound stress fatigue, expansion rate test, s-n curve measurement, rotational bending method. |
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corrosion test |
force corrosion test, hydrogen cracking test, crystal corrosion test, gas corrosion test, pitting corrosion test, crevice corrosion, hydrogen stripping test, brass dezincification corrosion resistance test. |
answer 1 : reliability testing has the following key roles : (1) to expose the defects in various aspects of the trial product in the development stage and evaluate the reliability of the product to achieve the predetermined index ; (2) to provide information for monitoring the production process in the production stage ; (3) to identify or accept the reliability of the final product ;
(4) to expose and analyze the failure law of the product under different environmental and stress conditions and the related (4) expose and analyze the failure mode and failure mechanism of the product under different environmental and stress conditions ; (5) develop and improve the reliability test program to improve the reliability of the product and provide the basis for the
user to select the product.
answer 2 : salt spray test is a kind of environmental test mainly using salt spray test equipment created by the artificial simulation of salt spray environmental conditions to assess the
corrosion resistance of products or metal materials. salt spray test 48 hours is not necessarilyrequired 48 hours, the use of work to accelerate the simulation of salt spray environmental test, in its volume space with artificial methods, resulting in salt spray environment to assess the quality of salt spray corrosion resistance of products, salt spray test on products, the time to produce results is also greatly reduced.
tel： 86-400 821 5138
fax： 86-21 3327 5843
email：noa@noagroup.com
