維卡軟化點溫度測定儀
【簡單介紹】
【詳細說明】
北京北廣精儀儀器設(shè)備有限公司
產(chǎn)品名稱:維卡軟化點溫度測定儀
型號:BWR-A
一、用途:
本儀器是適用于化工企業(yè)、 科研院所、大專院校等廣泛用于熱塑性塑料、硬橡膠和長纖維增強復合材料等熱變形溫度(HDT)和維卡溫度(VST)的測定。
二、符合標準:
GB/T1633-2000《熱塑性塑料軟化溫度(VST)的測定》
ISO 306_2004(E)塑料 熱塑性塑料 維卡軟化溫度的測定(VST) 譯文
GB/T1634-2004《塑料彎曲負載熱變形溫度試驗方法》
ISO 75 _2004(E)塑料 負荷變形溫度的測定 譯文
GB8802《硬聚氯乙烯(PVC-U) 管材及管件維卡軟化溫度測定方法》
ASTM D 1525-1991 塑料的維卡軟化溫度的試驗方法 譯文
ASTM D648-06 在撓曲負荷下塑料的撓曲溫度的試驗方法 譯
維卡軟化點溫度測定儀*符合ISO75(E)、ISO306(E)、GB/T8802、GB/T1633、GB/T1634標準的規(guī)定,
該機采用微處理器和PC機分布控制系統(tǒng),具有Windowsxp 中文操作界面,在試驗過程中,
實時監(jiān)控試驗溫度、試驗變形量的曲線走向,并動態(tài)地時實繪制溫度、變形量的曲線,實現(xiàn)歷史存盤,
打印試驗報告,以便今后隨時查詢以前的試驗數(shù)據(jù),進行各種實驗數(shù)據(jù)的對比研究,是一種智能化*的測試儀器,
當用鼠標點擊形變——溫度曲線的任何一處時,界面會自動顯示該處的變形量及溫度值。該儀器為立式柜機結(jié)構(gòu),
恒溫介質(zhì)箱內(nèi)采用45°雙螺旋攪拌,并采用*的溫度傳感器控制溫度,故此,介質(zhì)的溫度梯度小,熱損失小,恒溫均勻,
當試驗溫度達到上限設(shè)定溫度時自動停止加熱,試驗架具有自動升降功能,操作簡單,在同類機型中具有優(yōu)良的性能價格比。
三、維卡技術(shù)參數(shù):
1、溫度控制范圍:環(huán)境溫度——300℃
2、升溫速率:120±5℃/h(12±1℃/6min)或50±3℃/h(5±0.5℃/6min)
3、溫度分辨率:0.01℃
3、zui大溫度誤差:±0.5℃
4、形變測量方法:千分表
5、變形測量范圍:-0.1mm——5.0mm
6、zui大變形誤差:±0.01毫米
7、試 樣 架 數(shù):三架一溫
8、加 熱 介 質(zhì):甲基硅油(需方自備)
9、加 熱 功 率:2.5KW
10、冷 卻 方 法:150℃以上自然冷卻,150℃以下自然冷卻或水冷
11、具有上限溫度任意設(shè)定(環(huán)境溫度——300℃)的保護功能或zui高上限300℃的保護
12、負載桿和壓頭總質(zhì)量:88g
13、試驗zui大負荷:
A:維卡試驗負荷:GA=10N±0.2N(即1000g)、 GB=50N±1N(即5000g)
B:熱變形試驗負荷:F=2×δ×b×h×h/(3×L)
式中:F——試樣所需加的載荷,單位N
δ——熱變形標準彎曲正應力:
方法A:使用纖維應力1.80MPa
方法B:使用纖維應力0.45MPa
方法C:使用纖維應力8.00MPa
b——試樣的寬度,單位m
h——試樣的高度,單位m
L——兩支點間的距離,0.100m
14、電 源:AC220V±10%、50Hz、30A
15、需方自備甲基硅油:閃點300度、粘度200厘斯,20升。
四、維卡軟化點測定儀主要配置:
試驗主機一臺
溫度傳感器一只
光柵千分表三塊
熱變形及維卡測頭各三套
打印機一臺
工具一套
Control: microcomputer control
Meet the standards: GB1408-2006 electrical strength of insulating materials - Test methods
GB/T1695-2005 vulcanized rubber power frequency voltage breakdown strength and dielectric strength test
GB/T3333 cable paper at power frequency voltage breakdown test method
HG/T 3330 insulating varnish films - Determination of electrical breakdown strength
GB12656 capacitor voltage breakdown test method
ASTM D149 of solid electrical insulating materials at commercial power frequencies of dielectric breakdown voltage and dielectric strength test methods.
One, the applicable scope and the function
Cable paper at power frequency voltage breakdown testing instrument is mainly applied in solid insulating materials ( such as: plastic, rubber, thin film, resin, mica, ceramic, glass, insulating paint and other media) in the frequency of the voltage or DC voltage breakdown strength and voltage withstand test.
Cable paper at power frequency voltage breakdown testing instrument controlled by computer, through my company independent research and development of new inligent digital integrated circuit and software control system two parts to complete, so that the pressure rate truly uniform, accurate, and can accuray measure the leakage current data.
Real time dynamic drawing test curve, display test data, the judgment is accurate, and can be preserved, analysis, print the test data.
And the test speed adjustable, really do according to different customers different boosting speed, pressure rate: 100V/S 200V/S 500 V/S 1000 V/S 2000V/S 5000V/S
In 1, the instrument in the test process can boost the breakdown process in real time curve drawing, each test boost curve by different color, after testing can be superimposed contrast material testing data repeatability.
2, may at any time to obtain the current and historical test data to view, edit and modify the experimental results.
In 3, during the test can be modified at any time test conditions and storage path and automatic storage test results.
In 4, during the test, may at any time through the software determines the test is effective, convenient screening test results.
In 5, the software set a password, password generation protection, do special person operation, to avoid irrelevant personnel misoperation.
In 6, the test results edited print, convenient and more user-friendly operation.
In 7, of a group of test curve data of the test results are artificially selected.
In 8, the instrument adopts the advanced contactless original uniform pressure, elimination of similar products in the mechanical drive boosting mode.
In two, the technical requirements:
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