珠海紫外線加速耐候試驗(yàn)機(jī)
Q8/UV紫外光加速老化試驗(yàn)機(jī)主要用于模擬對(duì)陽光、潮濕和溫度對(duì)材料的破壞作用;材料老化包括褪色、失光、強(qiáng)度降低、開裂、剝落、粉化和氧化等。紫外光加速老化試驗(yàn)機(jī)通過模擬陽光、冷凝、模仿自然潮濕,試樣在模擬的環(huán)境中試驗(yàn)幾天或幾周的時(shí)間,可再現(xiàn)戶外可能幾個(gè)月或幾年發(fā)生的損壞。
Q8/UV紫外光加速老化試驗(yàn)機(jī)中,紫外燈的熒光紫外等可以再現(xiàn)陽光的影響,冷凝和水噴淋系統(tǒng)可以再現(xiàn)雨水和露水的影響。整個(gè)的測(cè)試循環(huán)中,溫度都是可控的。典型的測(cè)試循環(huán)通常是高溫下的紫外光照射和相對(duì)濕度在100%的黑暗潮濕冷凝周期;典型應(yīng)用在油漆涂料、汽車工業(yè)、塑膠制品、木制品、膠水等。 模擬陽光
陽光中的紫外線是造成大多數(shù)材料耐久性能破壞的主要因素。我們使用紫外燈來模擬陽光中的短波紫外部分,它產(chǎn)生很少的可見光或紅外光譜能量。我們可以根據(jù)不同的測(cè)試要求選擇不同波長(zhǎng)的UV紫外燈,因?yàn)槊糠N燈在總的紫外線輻照能量和波長(zhǎng)都不一樣。 通常,UV燈管可分為UVA和UVB兩種。
Q8/UV燈管
UVA-340燈管:UVA-340 燈管可地模擬太陽光中的短波紫外光,即從365 納米到太陽光截止點(diǎn) 295 納米的波長(zhǎng)范圍。
UVB-313燈管:UVB-313 燈管發(fā)出的短波紫外光比通常照射在地球表面的太陽紫外線強(qiáng)烈,從而可以zui大程度的加速材料老化。然而,該燈管可能會(huì)對(duì)某些材料造成不符合實(shí)際的破壞。UVB-313 燈管主要用于質(zhì)量控制和研究開發(fā),或?qū)δ秃蛐缘牟牧线\(yùn)行測(cè)試。
UVA-351燈管:模擬透過窗玻璃的陽光紫外光,它對(duì)于測(cè)試室內(nèi)材料的老化zui為有效。
潮濕冷凝環(huán)境
在很多戶外環(huán)境中,材料每天的潮濕時(shí)間可長(zhǎng)達(dá)12小時(shí)。研究表明造成這種戶外潮濕的主要因素是露水,而不是雨水。Q8/UV通過的冷凝功能來模擬戶外的潮濕侵蝕。在試驗(yàn)過程中的冷凝循環(huán)中,測(cè)試室底部蓄水池中的水被加熱以產(chǎn)生熱蒸氣,并充滿整個(gè)測(cè)試室,熱蒸汽使測(cè)試室內(nèi)的相對(duì)濕度維持在100%,并保持一個(gè)相對(duì)高溫。試樣被固定在測(cè)試室的側(cè)壁,從而試樣的測(cè)試面曝露在測(cè)試室內(nèi)的環(huán)境空氣中。試樣向外的一面暴露在自然環(huán)境中具有冷卻效果,導(dǎo)致試樣內(nèi)外表面具備溫差,這一溫差的出現(xiàn)導(dǎo)致試樣在整個(gè)冷凝循環(huán)過程中,其測(cè)試面始終有冷凝生成的液態(tài)水。
由于戶外曝曬接觸潮濕的時(shí)間每天可以長(zhǎng)達(dá)十幾小時(shí),因此典型的冷凝循環(huán)一般持續(xù)幾個(gè)小時(shí)。Q8/UV提供兩種潮濕模擬方法。應(yīng)用zui多的是冷凝方法,它是模擬戶外潮濕侵蝕的方法。所有的Q8/UV型號(hào)都可運(yùn)行冷凝循環(huán)。因?yàn)橛行?yīng)用條件也要求使用水噴淋以達(dá)到實(shí)際的效果,所以有些Q8/UV型號(hào)既可運(yùn)行冷凝循環(huán)又可運(yùn)行水噴淋循環(huán)。
溫度控制
在每個(gè)循環(huán)中,溫度都可控制在一個(gè)設(shè)定值。同時(shí)黑板溫度計(jì)可以監(jiān)控溫度。溫度的提高可以加速老化的進(jìn)程,同時(shí),溫度的控制對(duì)于測(cè)試的可再現(xiàn)性也是很重要的。
水噴淋系統(tǒng)
對(duì)于某些應(yīng)用而言,水噴淋能更好地模擬zui終使用的環(huán)境條件。水噴淋在模擬由于溫度劇變和由于雨水沖刷所造成的熱沖擊或機(jī)械侵蝕是非常有效的。在某些實(shí)際應(yīng)用條件下,例如陽光下,聚集的熱量由于突降的陣雨而迅速消散時(shí),材料的溫度就會(huì)發(fā)生急劇變化,產(chǎn)生熱沖擊,這種熱沖擊對(duì)于許多材料而言是一種考驗(yàn)。Q8/UV的水噴淋可以模擬熱沖擊和/或應(yīng)力腐蝕。
噴淋系統(tǒng)有12個(gè)噴嘴,在測(cè)試室的每一邊各有6個(gè);噴淋系統(tǒng)可運(yùn)行幾分鐘然后關(guān)閉。這短時(shí)間的噴水可快速冷卻樣品,營(yíng)造熱沖擊的條件。
照射強(qiáng)度控制:可選
選配照射強(qiáng)度控制選件可得到精確型和重復(fù)性好的測(cè)試結(jié)果;光強(qiáng)控制系統(tǒng)允許用戶根據(jù)不同的測(cè)試要求設(shè)置不同的光照強(qiáng)度。通過其反饋回路裝置精確控制照射強(qiáng)度;同時(shí)也可以延長(zhǎng)熒光燈的使用壽命
Q8/UV紫外光加速老化試驗(yàn)機(jī)主要技術(shù)指標(biāo)
型號(hào) Model
| Q8/UV3 | Q8/UV2 | Q8/UV1 |
UV 照射 Exposure | ● | ● | ● |
冷凝 Condensation | ● | ● | ● |
光照控制 Irradiancs Control | ● | ● | |
可調(diào)光線 Adjustable irradiance | ● | ● | |
噴水 Water Spray | ● | ||
熱沖擊 Thermal Shock | ● | ||
自動(dòng)偵路 Self-diagnostics | ● | ● | ● |
燈泡數(shù)量 Lamp Q'ty | 紫外線燈管 8 支,備品 4 支 Ultravloiet lamp 6pcs, spares 4 pcs (美國(guó)Q-LAB,Q-Panel,美國(guó)ATLAS,UVA340,UVB313,UVC351) | ||
記錄器 Recorder | 選配 (Optional) | ||
輻射計(jì) Q8-CR Calibration Radiometer | 選配 (Optional) 機(jī)器輻射強(qiáng)度: 1.0W/m2/340nm以內(nèi)可調(diào) 1.1W/m2/313nm以內(nèi)可調(diào) | ||
UV 溫度 Temp | 50 ℃ -75 ℃ | ||
冷凝溫度 Condensation Temp | 40 ℃ -60 ℃ | ||
測(cè)試容量 Test Capacity | 48pcs 片/se spray( 75 x 150m m ) 50pcs片/basic ( 75 x 150m m ) | ||
水涼及耗量 Water | 蒸餾水每分鐘 蒸餾水每日 8 公升 | ||
體積 Dimension(W x D x H) | 137 x 53 x 136cm | ||
重量 Weight | 136kg | ||
電源 Power | 1 ψ , 120V/60Hz,16A or 230V/50Hz, 9A,1800W(max) |
Q8/UV紫外光加速老化試驗(yàn)機(jī)測(cè)試方法
通用
• ISO 4892-1 Plastics- Methods of exposure to laboratory light sources-Part 1: General Guidance
• ASTM G-151, Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
• ASTM G-154, Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Non-Metallic Materials
• British Standard BS 2782: Part 5, Method 540B (Methods of Exposure to Lab Light Sources)
• SAE J2020, Accelerated Exp. of Automotive Exterior Materials Using a Fluorescent UV/Condensation Apparatus
• JIS D 0205, Test Method of Weatherability for Automotive Parts (Japan)
• GB/T 16422.1,塑料實(shí)驗(yàn)室光源暴露試驗(yàn)方法 第1部分:總則
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涂料
• ISO 11507, Paints & varnishes-Exposure of coatings to artificial weathering-Exposure to fluorescent UV and water
• ISO 20340, Paints & varnishes –Performance requirements for protective paint systems for offshore and
related structures
• ASTM D-3794, Standard Guide for Testing Coil Coatings
• ASTM D-4587, Standard Practice for Light/Water Exposure of Paint
• US Government, FED-STD-141B
• US Govt., Federal Specification TT-E-489H, Enamel, Alkyd, Gloss, Low VOC Content
• US Govt., Federal Specification TT-E-527D, Enamel, Alkyd, Lusterless, Low VOC Content
• US Govt., Federal Specification TT-E-529G, Enamel, Alkyd, Semigloss, Low VOC Content
• US Govt., Federal Specification TT-P-19D Paint, Latex, Acrylic Emulsion, Ext. Wood & Masonry
• NACE Standard TM-01-84 Procedures for Screening Atmospheric Surfaced coatings
• GM4367M Topcoat Materials - Exterior
• GM 9125P Laboratory Accelerated Exposure of Automotive Material
• Korean Standard M5982-1990, Test Method for Accelerated Weathering
• Spanish Std, UNE 104-281-88 Accelerated Testing of Paints and Adhesives with Fluorescent UV Lamps
• Israeli Standard No. 330, Steel Windows
• Israeli Standard No. 385, Plastic Windows
• Israeli Standard No. 935, Road Marking Paint
• Israeli Standard No. 1086, Aluminum Windows
• NISSAN M0007, Fluorescent UV/Condensation Test
• JIS K 5600-7-8, Testing Methods for Paints
• MS 133: Part F16, Methods of Test for Paints and Varnishes: Part F16: Exposure of Coatings to Artificial Weathering- Exposure to Fluorescent UV and Water (ISO 11507)
• NBR-15.380 Paints for buildings–Methods for performance evaluation of paints for non-industrial buildings – Resistance to UV irradiation/water vapor condensation, by accelerated test
• prEN 927-6 Paints & varnishes–Coating materials and coating systems for exterior wood – Pt. 6: Exposure of wood coatings to artificial weathering using fluorescent UV and water
• GB/T 12967.4,鋁及鋁合金陽極氧化 著色陽極 氧化膜耐紫外光性能的測(cè)定
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紡織品
• AATCC Test Method 186, Weather Resistance: UV Light and Moisture Exposure
• ACFFA Test Method for Colorfastness of Vinyl Coated Polyester Fabrics
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印刷油墨
• ASTM F1945, Lightfastness of Ink Jet Prints Exposed to Indoor Fluorescent Lighting ________________________________________
橡膠
• GB/T 16585,硫化橡膠人工氣候老化(熒光紫外燈)試驗(yàn)方法
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電工電子產(chǎn)品
• GB/T 19394,光伏(PV)組件紫外試驗(yàn)
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粘合劑和密封劑
• ASTM C 1501, Standard Test Method For Color Stability of Building Construction Sealants as Determined byLaboratory Accelerated Weathering Procedures
• ASTM C-1184, Specification for Structural Silicone Sealants
• ASTM C-1442, Standard Practice for Conducting Tests on Sealants Using Artificial Weathering Apparatus
• ASTM D-904, Standard Practice for Exposure of Adhesive Specimens to Artificial Light
• ASTM D-5215, Standard Test Method for Instrumental Evaluation of Staining of Vinyl Flooring by Adhesives
• American Plywood Assn., Approval Procedures for Synthetic Patching Materials, Section 6
• Spanish Std, UNE 104-281-88 Accelerated Testing of Paints and Adhesives with Fluorescent UV Lamps
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塑料
• ISO 4892 Plastics - Methods of Exposure to Laboratory Light Sources-Part 3: Fluorescent UV Lamps
• DIN 53 384, Testing of plastics, Artificial Weathering and Exposure to Artificial Light
• Spanish Standard UNE 53.104 (Stability of Plastics Materials Exposed to Simulated Sunlight)
• Israeli Standard No. 385, Plastic Windows
• JIS K 7350, Plastics - Methods of Exposure to Laboratory Light Sources-Part 3: Fluorescent UV Lamps
• ASTM D-1248, Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
• ASTM D-4329, Standard Practice for Light/Water Exposure of Plastics
• ASTM D-4674, Test Method for Accelerated Testing for Color Stability of Plastics Exposed to Indoor
Fluorescent Lighting and Window-Filtered Daylight
• ASTM D-5208, Standard Practice for Exposure of Photodegradable Plastics
• ASTM D-6662, Standard Specification for Plastic Lumber Decking Boards
• ANSI C57.12.28 Specification for Accelerated Weathering of Padmounted Equipment Enclosure Integrity
• ANSI, A14.5 Specification for Accelerated Weathering of Portable Reinforced Plastic Ladders
• Edison Electrical Inst. Specification for Accelerated Weathering of Padmounted Equip. Enclosure Integrity
• Wisconsin Electric Power Specification for Polyethylene Signs
• GB/T 18950,橡膠和塑料軟管 靜態(tài)下耐紫外線性能測(cè)定
• GB/T 16422.3,塑料實(shí)驗(yàn)室光源暴露試驗(yàn)方法 第3部分:熒光紫外燈
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屋頂材料
• ASTM D-4799, Test Method for Accelerated Weathering of Bituminous Roofing Materials
• ASTM D-4811, Standard Specification for Nonvulcanized Rubber Sheet Used as Roof Flashing
• ASTM D-3105, List of Test Methods for Elastomeric and Plastomeric Roofing & Waterproofing
• ASTM D-4434, Standard Specification for PVC Sheet Roofing
• ASTM D-5019, Standard Specification for Reinforced Non-Vulcanized Polymeric Sheet Used in Roofing Membrane
• ANSI/RMA IPR-1-1990 Req. for Non-Reinforced Black EPDM Sheet for Roofing Membrane
• ANSI/RMA IPR-2-1990 Req. for Fabric-Reinforced Black EPDM Sheet for Roofing Membrane
• ANSI/RMA IPR-5-1990 Req. for Non-Reinforced Non-Black EPDM Sheet for Roofing Membrane
• ANSI/RMA IPR-6-1990 Req. for Fabric-Reinforced Non-Black EPDM Sheet for Roofing Membrane
• British Standard BS 903: Part A54 Annex A & D, Methods of Testing Vulcanized Rubber
• CGSB-37.54-M, Canadian General Standards Board Spec. for PVC Roofing & Waterproofing Membrane
• DIN EN 534, Corrugated bitumen sheets
• EOTA TR 010, Exposure procedure for artificial weathering
• RMA Specification for Reinforced Non-Vulcanized Chlorosulfonated Polyethylene Sheet for Roofing Membrane
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復(fù)合材料
• Israeli Standard No. 385, Anodic Coatings on Aluminum
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珠海紫外線加速耐候試驗(yàn)機(jī)
宏展擁有一個(gè)專業(yè)從事環(huán)境試驗(yàn)設(shè)備研發(fā)的科研機(jī)構(gòu),具備成熟的環(huán)試研制手段與試驗(yàn)室,聚集了行業(yè)內(nèi)一批優(yōu)秀的各類人才和專家,強(qiáng)大的研發(fā)團(tuán)隊(duì)著國(guó)內(nèi)環(huán)試技術(shù)發(fā)展方向.現(xiàn)目前,公司具有自主知識(shí)產(chǎn)權(quán)的高低溫試驗(yàn)箱、高低溫濕熱試驗(yàn)箱、快速溫度變化試驗(yàn)箱、冷熱沖擊試驗(yàn)箱、三綜合試驗(yàn)箱、高低溫低氣壓試驗(yàn)箱、太陽輻射試驗(yàn)箱、工業(yè)烤箱以及步入式高低溫濕熱試驗(yàn)箱和高風(fēng)速淋雨試驗(yàn)箱等氣候環(huán)境試驗(yàn)設(shè)備及訂制產(chǎn)品處于國(guó)內(nèi)、高水準(zhǔn)。