一、產品簡介
DRH-III全自動雙平板導熱係數測定儀基於單向穩定導熱原理，當試樣上、下兩面處於不同的穩定溫度下，測量通過試樣有效傳熱面積的熱流及試樣兩表面間溫差和厚度，計算導熱係數。滿足了材料檢測研究部門對材料導熱係數的測試要求。電子電路、計算機軟件對全過程進行自動測控。本機具有計算機自動測厚，自動加壓，測量不同壓力下的導熱係數。全自動數據採集、數據處理、打印報表，數據存儲。測量時間短、數據準確、重復性好，自動化程度高的優點。
用途：該導熱係數測定儀主要測試塑料、橡膠、玻璃、纖維、苯板、擠塑板、發泡混凝土、空心玻璃、木板、各種保溫材料等勻質板狀材料，同時可以測量顆粒料、散料、軟料等各種物質的導熱係數
適用標準：
GB/T10294-2008 《絕熱材料穩態熱阻及有關特性的測定》；
GB/T3399-1982 《塑料導熱係數試驗方法-護熱平板法》；
GB/T10801.1-2002《隔熱用聚苯乙烯泡沫塑料》中規定的對聚氨酯硬泡材料導熱係數的測量；
GB／T10801.2-2002：<絕熱用擠塑聚苯乙烯泡沫塑料(XPS)>。中規定的對擠塑聚苯乙烯泡沫塑料導熱係數的測量；
GB/T3139-2005《纖維增強塑料導熱係數試驗方法》；
GB/T 17794-2008《柔性泡沫橡塑絕熱制品》
二、技術指標
1.導熱係數：測量範圍：0.010—3.000 W/ (m2/K)；測量精度：±2%，重復性：±1%
2. 熱面溫度測量範圍：室溫—150℃，溫度分辨力：0.01℃。冷面溫度測量範圍：0—60℃，溫度分辨力：0.01℃ （可以根據用戶要求選：-5∼60℃,-30∼60℃）。
3.厚度測量範圍：0—100mm，分辨力：0.001mm
4. 壓力測量範圍：0—500N，分辨力：0.1N
5.試件標準尺寸：300mm×300mm ×H（5-50mm）( 可根椐用戶要求定做其他規格)
6.全計算機自動檢測及數據處理係統，與通用計算機相配
7.電 源：220V 50HZ.500W
三、產品特點
★在線溫度標定：技術,標定儀器簡單快速，精度提高3倍以上。
★測試時間短： 90--120分鐘。
★測量範圍大：量程0.010-3.00w/(m.k)。
★自動測厚：計算機自動測厚,減小人為誤差。
★自動加壓係統：計算機自動加壓, 可試驗在不同壓力下的導熱係數, 比人工加壓更科學, 更數據化, 重復性
★測量種類多： 除測量硬質板材外，選配各種配件，可以測量多種特殊材料。比如：顆粒料、散料、土壤、軟料, 液體等。
One, product introduction
DRH-III automatic double flat plate thermal conductivity coefficient measuring instrument based on one-way steady heat conduction principle, when the sample, both sides in different stable temperature measurement through the specimen, the effective heat transfer area of heat flux and surface temperature difference and thickness of sample two, calculation of the thermal conductivity. To meet the material testing research on thermal conductivity of high precision test requirements. Electronic circuit, computer software of automatic measurement and control. This machine has the automatic measurement, automatic pressurization, measurement of the thermal conductivity under different pressure. Automatic data acquisition, data processing, printing report forms, data storage. Short time measurement, data accuracy, good repeatability, high degree of automation.
Purpose: the thermal conductivity coefficient measuring instrument mainly plastic, rubber, glass, fiber, benzene board, plastic board, foam concrete, hollow glass, wood, all kinds of insulation materials and other homogeneous plate material, and can measure the particle material, bulk materials, soft materials such as various kinds of material coefficient of thermal conductivity
Applicable standards:
GB/T10294-2008 " insulating materials Determination of steady-state thermal resistance and related properties ";
GB/T3399-1982 " test method for thermal conductivity of plastics - Guarded hot plate method ";
GB/T10801.1-2002 " polystyrene foam for thermal insulation of the " provisions of the polyurethane foam material thermal conductivity measurement;
GB / T10801.2-2002:< insulation with extruded polystyrene foam ( XPS ) >. Provisions on extruded polystyrene foam plastic thermal conductivity measurement;
GB/T3139-2005 " fiber reinforced plastics test method for thermal conductivity of ";
GB/T 17794-2008 " flexible foam rubber insulation products "
Two, technical indicators
The 1 coefficient of thermal conductivity: measurement range: 0.010 - 3 W/ ( m2/K ); measurement accuracy:± 2%,± 1% repeated:
2 hot surface temperature measurement range: room temperature - 150 ℃, temperature resolution: 0.01 ℃. Surface temperature measurement range: 0 - 60 ℃, temperature resolution: 0.01 ℃( according to the requirement of the user selected: -5 ∼ 60℃, -30 ∼ 60℃).
3 thickness measurement range: 0 - 100mm, resolution: 0.001mm
The 4 pressure measuring range: 0 - 500N, resolution: 0.1N
In 5 specimens standard size: 300mm ×300mm ×H ( 5-50mm ) ( according to user requirements of other specifications )
6 full automatic detection and data processing system, and computer.
7 electrical source: 220V 50HZ.500W
Three, product characteristics
★online temperature calibration: unique technology, calibration apparatus is simple and rapid, accuracy is improved more than 3 times.
★short test time: 90--120 minutes.
★large measurement range: the range of 0.010-3.00w/ ( m.k ).
Automatic thickness: computer automatic thickness, reduce the artificial error.
Automatic pressurizing system: computer automatic pressure, can test under the different pressure coefficient of heat conductivity than artificial pressure, more scientific, more data, the repeatability is better
Many kinds of measurement: except for measuring rigid sheet, matching all kinds of accessories, can be measured by a variety of special materials. For example: granular materials, bulk material, soil, soft material, such as liquid.
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