灯管式紫外线耐老化试验机技术资料

灯管式紫外线耐老化试验机

Tube-type ultraviolet aging resistance tester

生产厂家：肇庆市华和振森试验机制造有限公司

ZhaoManufacturer:Qing Huahezhensen Test Machine Manufacture Co., Ltd.

一、产品概述 1. Product Overview

紫外线老化是材料在自然环境中常见的劣化现象，主要由光、热、氧、应力、微量水分、杂质及不当加工工艺等因素共同作用导致，具体表现为材料颜色发黄（黄变）、性能下降等。本恒温 340 灯管式紫外线耐老化试验机通过模拟自然环境中的紫外线照射、温度等关键老化因素，精准再现材料的老化过程，为材料的耐候性评估、产品研发及质量控制提供科学可靠的试验依据。

Ultraviolet (UV) aging is a prevalent degradation phenomenon in natural environments, primarily caused by combined effects of light, heat, oxygen, stress, trace moisture, impurities, and improper processing techniques. This manifests as material yellowing (yellowing) and performance deterioration. The 340°C constant-temperature UV aging tester simulates critical aging factors like UV exposure and temperature, accurately replicating material aging processes. It provides scientifically reliable test data for weather resistance evaluation, product development, and quality control.

（一）材料老化核心影响因素 (1) Core factors affecting material aging

聚合物结构本身性能：聚合物大分子链键存在特定键能，当外界提供的能量大于键能时，分子链易产生活性中心，导致聚合物在使用和贮存过程中逐步降解老化。

光的作用：材料吸收光能后，吸收部位的分子链会发生碳碳键或碳氢键的裂解，引发材料结构破坏。

热与氧的作用：氧会使材料发生氧化反应，热则会加速该过程；氧化形成的过氧化结构易产生游离基，导致浅、白色材料变色。其中，氧对不饱和二烯烃材料的破坏最为显著，热除活化氧化外，还会造成 - C-C - 键断裂和双键破裂。

其他因素：材料中添加的助剂、残留水分、混入的杂质以及加工生产工艺等，都会降低聚合物稳定性，其影响机制较为复杂，需结合具体场景分析。

The polymer structure itself performance: Polymer macromolecule chain bond has specific bond energy, when the external energy is greater than the bond energy, the molecular chain is easy to produce active center, leading to the polymer in the use and storage process of gradual degradation and aging.

The function of light: after the material absorbs the light energy, the molecular chain of the absorption part will cause the carbon-carbon bond or carbon-hydrogen bond to break, which leads to the destruction of the material structure.

The interaction between heat and oxygen: Oxygen induces oxidation in materials, while heat accelerates this process. The resulting peroxide structures readily generate free radicals, causing discoloration in light-colored materials. Notably, oxygen exerts the most severe damage on unsaturated diene materials. In addition to activating oxidation, heat also leads to the cleavage of-C-C-bonds and double bond ruptures.

Other factors: additives in materials, residual moisture, impurities mixed in, and processing technologies all reduce polymer stability. The impact mechanisms are complex and require scenario-specific analysis.

二、主要技术参数 II. Main Technical Parameters

三、箱体结构与材料 III. Box Structure and Materials

1.外装材料：采用高级冷板经烤漆工艺处理，外观平整美观，兼具防腐蚀、防锈功能。

1. Exterior materials: Crafted from premium cold-rolled steel sheets with baked enamel finish, featuring a sleek, corrosion-resistant surface that resists rust.

2.内装材料：选用 304 镜面不锈钢，质地坚硬、耐腐蚀性强，便于清洁，可保障试验环境的稳定性。

2. Interior materials: 304 mirror-finish stainless steel is selected for its hardness, corrosion resistance, and easy maintenance, ensuring stable test conditions.

3.置物架：不锈钢材质打造，承重性能良好，不易变形，可稳定放置各类试验样品。

3. Storage rack: Crafted from stainless steel, it offers excellent load-bearing capacity and resists deformation, providing stable support for various test samples.

4.绝热材料：填充防火硅酸铝保温棉，保温隔热效果优异，能有效维持箱内温度稳定，降低能耗。

4. Insulation material: Fire-resistant aluminum silicate insulation cotton provides excellent thermal insulation, effectively maintaining stable internal temperature and reducing energy consumption.

四、适用范围 4. Scope of Application

本设备广泛应用于涂料、油墨、油漆、布料、塑料、粘合剂、汽车摩托车配件、工业化妆品、金属、电子、电镀、医药等行业，可对各类制品及材料进行模拟紫外老化测试，评定其在紫外线照射环境下的耐候性、变色程度、老化速率及使用寿命。

This equipment is widely used in the fields of coatings, inks, paints, fabrics, plastics, adhesives, auto and motorcycle parts, industrial cosmetics, metals, electronics, electroplating, medicine, etc. It can simulate the aging test of various products and materials, and evaluate their weather resistance, discoloration degree, aging rate and service life under the environment of ultraviolet irradiation.