360nm UV Aging Chamber Weathering Test Equipment

The UV aging test chamber is suitable for simulating the UV radiation and heat of sunlight. The sample is exposed to UV radiation and temperature inside the machine. After a period of time, the degree of change of the sample can be observed, and the stained gray mark can be used as a reference.

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360nm UV Aging chamber and Weathering Test Equipment 

The UV Aging Chamber Used for UV accelerated testing of materials (generally, testing the material in this box for 3 hours at 70 ℃ is equivalent to 2 months of aging results in the natural environment). Pollution gray scale can be used as a reference to determine the aging level of materials. You can also visually assess the degree of aging of the material

360nm UV Aging chamber Weathering Test Equipment 

UVA Lamp (Detailed Explanation)

Abbreviated as UVA. It is ultraviolet light with a wavelength of 320-420nm. Long wave ultraviolet radiation has much stronger penetration through clothing and human skin than medium wave ultraviolet radiation. It can reach deep into the dermis and act on melanin in the epidermis, causing melanin deposition and darkening of the skin. It plays a role in defending against ultraviolet radiation and protecting the skin. Therefore, long wave ultraviolet rays are also known as the "tanning segment". Although long wave ultraviolet radiation does not cause acute inflammation of the skin, its effect on the skin is slow and can accumulate for a long time, which is one of the causes of skin aging and serious damage.

Ultraviolet radiation is divided into near ultraviolet UVA, far ultraviolet UVB, and ultra short ultraviolet UVC according to wavelength. The degree of penetration of ultraviolet rays into human skin varies. The shorter the wavelength of ultraviolet rays, the greater the harm to human skin. Short wave ultraviolet rays can penetrate the dermis, while medium wave ultraviolet rays can enter the dermis.  

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Q1: What is the basis of the 3 hours equivalent 2 months aging test? 

A: Based on ISO 4892 standard, under the condition of 70℃, continuous UVA irradiation, the yellowing index and the decay rate of the mechanical properties of the material are compared with the natural exposure data, and the specific equivalence coefficient varies according to the material. 

Q2: How to judge the expiration of lamp life? 

A: When the irradiation intensity decreases by >15% or the accumulated use time exceeds 1600 hours (standard life), the UV aging chamber's all 6 lamps need to be replaced simultaneously to ensure spectral consistency. 

Q3: How to calibrate the Contamination Gray Scale Comparison System? 

A: ISO gray scale card is provided with the equipment. Place the standard card in the sample area and irradiate it for 30 minutes before the test, and verify that the ΔE value is <0.5 by the colorimeter, that is, the calibration is valid. 

Q4: What is the maximum sample thickness that can be tested? 

A:The UV aging chamber's sample racks are spaced 80mm apart. It is recommended that the thickness of a single piece be ≤50mm and the total load be ≤8kg to avoid blocking the path of UV radiation. 

Q5: How to maintain the UV aging chamber when the UV aging chamber is idle? 

A: After turning off the power, clean the residue on the inner wall of the box, run the unit at no load for 1 hour per month (set temperature 40℃), and wipe the surface of the lamp with anhydrous ethanol to prevent dust.