Описание
Приложение
Светодиодные продукты или компоненты должны пройти тест в солевом тумане? [Обычно только для продуктов или компонентов с солевым туманом или риском коррозии в рабочей среде]
A Металл и его сплав
B Металлическое покрытие, например, луженое никелирование.
C Органическое покрытие, например, аэрозоль.
D: Анодно-окислительная пленка
Under salt fog chamber that we usually refer to relevant national and industry standards to ensure the accuracy and comparability of test results. for example:
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GB/T 10125, ISO 9227 Испытание на коррозию в искусственной атмосфере Коррозия в солевом тумане
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ASTM B117 Стандартное испытание в солевом тумане США
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GB/T 2423.17, IEC 60068-2-11 Испытание электронных изделий в солевом тумане
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GB/T 2423.18, IEC 60068-2-52 испытание электроники в переменном солевом тумане
Salt spray test: the LED sample is exposed to salt spray environment, simulate the use scenario in the Marine environment, by observing the change of its surface corrosion, electrical performance changes and other indicators, to evaluate its reliability in a strong corrosion environment.
Классификация испытаний в искусственном солевом тумане:
(1) Neutral salt spray test (NSS test)
It is the earliest and most widely used accelerated corrosion test method. It uses 5% sodium chloride brine solution, the PH value of the solution is adjusted in the neutral range (6.5~7.2) as a spray solution. The test temperature is set at 35℃, and the settlement rate of salt spray is required to be between 1-2ml/80cm2(h).
【 Neutral salt spray test is the most commonly used test method. If no special instructions are made, the salt spray test we talk about usually refers to the neutral salt spray test 】
(Испытание распылением потолочного света с помощью нашей камеры соляного тумана в лаборатории JOEO)
(2) Acetate spray test (ASS test)
It is developed on the basis of the neutral salt spray test.
It is to add some glacial acetic acid in 5% sodium chloride solution, so that the PH value of the solution is reduced to about 3.1-3.3, the solution becomes acidic, and the salt spray finally formed is also from the neutral salt spray into acid.
(3) Copper accelerated acetate spray test (CASS test)
It is a rapid salt spray corrosion test recently developed abroad. The test temperature is 50℃, and a small amount of copper salt - copper chloride is added to the salt solution to strongly induce corrosion.
(Испытание светодиодного чипа в солевом тумане)
(4) Alternating salt spray testIs a comprehensive salt spray test
It is actually a neutral salt spray test plus constant wet heat test.
It is mainly used for cavity type machine products, through the penetration of tidal environment, so that salt spray corrosion is not only produced on the surface of the product, but also produced inside the product. It is the alternating conversion of the product in the salt spray and wet and hot two environmental conditions, and the final examination of the electrical and mechanical properties of the whole machine product.
(Испытание уличного соляного тумана в лабораторной комнате JOEO с камерой соляного тумана)