品牌
生产厂家厂商性质
北京市所在地
北京北广精仪仪器设备有限公司
产品名称:维卡软化点温度测定仪
型号:BWR-A
一、用途:
本仪器是适用于化工企业、 科研院所、大专院校等广泛用于热塑性塑料、硬橡胶和长纤维增强复合材料等热变形温度(HDT)和维卡温度(VST)的测定。
二、符合标准:
GB/T1633-2000《热塑性塑料软化温度(VST)的测定》
ISO 306_2004(E)塑料 热塑性塑料 维卡软化温度的测定(VST) 译文
GB/T1634-2004《塑料弯曲负载热变形温度试验方法》
ISO 75 _2004(E)塑料 负荷变形温度的测定 译文
GB8802《硬聚氯乙烯(PVC-U) 管材及管件维卡软化温度测定方法》
ASTM D 1525-1991 塑料的维卡软化温度的试验方法 译文
ASTM D648-06 在挠曲负荷下塑料的挠曲温度的试验方法 译
维卡软化点温度测定仪*符合ISO75(E)、ISO306(E)、GB/T8802、GB/T1633、GB/T1634标准的规定,
该机采用微处理器和PC机分布控制系统,具有Windowsxp 中文操作界面,在试验过程中,
实时监控试验温度、试验变形量的曲线走向,并动态地时实绘制温度、变形量的曲线,实现历史存盘,
打印试验报告,以便今后随时查询以前的试验数据,进行各种实验数据的对比研究,是一种智能化*的测试仪器,
当用鼠标点击形变——温度曲线的任何一处时,界面会自动显示该处的变形量及温度值。该仪器为立式柜机结构,
恒温介质箱内采用45°双螺旋搅拌,并采用*的温度传感器控制温度,故此,介质的温度梯度小,热损失小,恒温均匀,
当试验温度达到上限设定温度时自动停止加热,试验架具有自动升降功能,操作简单,在同类机型中具有优良的性能价格比。
三、维卡技术参数:
1、温度控制范围:环境温度——300℃
2、升温速率:120±5℃/h(12±1℃/6min)或50±3℃/h(5±0.5℃/6min)
3、温度分辨率:0.01℃
3、zui大温度误差:±0.5℃
4、形变测量方法:千分表
5、变形测量范围:-0.1mm——5.0mm
6、zui大变形误差:±0.01毫米
7、试 样 架 数:三架一温
8、加 热 介 质:甲基硅油(需方自备)
9、加 热 功 率:2.5KW
10、冷 却 方 法:150℃以上自然冷却,150℃以下自然冷却或水冷
11、具有上限温度任意设定(环境温度——300℃)的保护功能或zui高上限300℃的保护
12、负载杆和压头总质量:88g
13、试验zui大负荷:
A:维卡试验负荷:GA=10N±0.2N(即1000g)、 GB=50N±1N(即5000g)
B:热变形试验负荷:F=2×δ×b×h×h/(3×L)
式中:F——试样所需加的载荷,单位N
δ——热变形标准弯曲正应力:
方法A:使用纤维应力1.80MPa
方法B:使用纤维应力0.45MPa
方法C:使用纤维应力8.00MPa
b——试样的宽度,单位m
h——试样的高度,单位m
L——两支点间的距离,0.100m
14、电 源:AC220V±10%、50Hz、30A
15、需方自备甲基硅油:闪点300度、粘度200厘斯,20升。
四、维卡软化点测定仪主要配置:
试验主机一台
温度传感器一只
光栅千分表三块
热变形及维卡测头各三套
打印机一台
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: