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紫外老化試驗箱采用熒光紫外燈為光源,通過模擬自然陽光中的紫外輻射和冷凝,對材質(zhì)進(jìn)行加速耐候性試驗,以獲得材質(zhì)耐候性的結(jié)果。用于豐非金屬材質(zhì)、有機材質(zhì)(如:涂料、油漆、橡膠、塑膠及其制品),經(jīng)在陽光、濕度、溫度、凝露等氣候條件的變化下檢驗有關(guān)產(chǎn)品及材質(zhì)老化現(xiàn)象程度。在短時間內(nèi)得到變色,退色等情況。
Ultraviolet aging test box adopts fluorescent uv lamp as light source, by simulating natural ultraviolet radiation from the sun and condensation, accelerated weathering test was carried out on the material, in order to obtain the result of the material weatherability. For abundant non-metallic materials, organic materials (such as: coating, paint, rubber, plastics and its products), in the sunlight, the change of the climate conditions such as humidity, temperature, condensation under inspection relating to the product and material aging degree. In a short period of time to get discoloration, fading, and so on and so forth. 紫外老化試驗箱光源: 1、光源采用8支UV系列額定功率為40W的紫外熒光燈管作發(fā)光源,分布在機器的兩側(cè),每側(cè)各4支; 2、試樣表面與紫外燈平面距離為50毫米且相平行; 3、有UV-B313.UV-A340.光源供用戶選擇配置;(任選一種) 4、UV-A340燈管的發(fā)光光譜能量主要集中在340nm波長附近; 5、UV-B313燈管的發(fā)光光譜能量主要集中在313nm波長附近; 6、由于熒光燈光能量輸出會隨時間而逐步衰減,為了減小因光能量衰減造成試驗的影響,所有的8支燈管中每隔1/4的熒光燈壽命時。 參照GB/T14522-93《中華人民共和國國家指標(biāo)--機械工業(yè)產(chǎn)品用塑料、涂料、橡膠材料—人工氣候加速試驗方法》GB/T16585-1996《中華人民共和國國家指標(biāo)—硫化橡膠人工氣候老化(熒光紫外燈)試驗方法》及GB/T16422.3-1997《塑料實驗室光源暴露試驗方法》等相應(yīng)指標(biāo)條款設(shè)計制造,紫外老化試驗箱符合國際測試指標(biāo):ASTM D4329、D499、D4587、D5208、G154、G53;ISO 4892-3、ISO 11507;EN 534;prEN 1062-4、 BS 2782;JIS D0205;SAE J2020等所有現(xiàn)行紫外線老化試驗指標(biāo)。 (GB/T14522-93 "national index - the People's Republic of China machinery industrial products in plastic, paint, rubber, artificial climate accelerated test method" (GB/T16585-1996 the law of the People's Republic of China national index - vulcanized rubber artificial weathering (fluorescent uv lamp), test method and GB/T16422.3-1997 plastic laboratory light exposure test methods and other relevant index terms, design and manufacture of ultraviolet aging test chamber in accordance with international test indicators: ASTM D4329, D499, D4587, D5208, G154, G53; ISO 4892-3, ISO 11507; EN 534; PrEN 1062-4, BS 2782; JIS D0205; The SAE J2020 all existing ultraviolet aging test indicators, etc.