概述：
DR-300H熱變形、維卡軟化點(diǎn)測(cè)定儀運(yùn)用PLC可編程控制器進(jìn)行溫度調(diào)節(jié)，采用電腦控制操作。該產(chǎn)品操作簡(jiǎn)單、使用方便、性能穩(wěn)定、產(chǎn)品精度高，并在試驗(yàn)過(guò)程中可時(shí)實(shí)監(jiān)控試驗(yàn)溫度和變形量；試驗(yàn)結(jié)束時(shí)系統(tǒng)自動(dòng)停止加熱，該機(jī)可設(shè)定目標(biāo)溫度具有溫度保護(hù)功能。本機(jī)具有業(yè)界的自動(dòng)試驗(yàn)架升降功能，可在試驗(yàn)開(kāi)始或結(jié)束時(shí)對(duì)試樣架進(jìn)行自動(dòng)提升或下降功能。該機(jī)是各質(zhì)檢單位、大專(zhuān)院校和各企業(yè)自檢的必備儀器。電腦型在試驗(yàn)過(guò)程中可動(dòng)態(tài)地時(shí)實(shí)時(shí)繪制溫度—變形量的曲線，溫度—時(shí)間曲線；按照新修訂的標(biāo)準(zhǔn)，試樣可水平放置和側(cè)立放置；可選擇實(shí)驗(yàn)方法熱變形或維卡；可選擇試驗(yàn)壓強(qiáng)并自動(dòng)計(jì)算加載質(zhì)量；試驗(yàn)結(jié)束時(shí)系統(tǒng)自動(dòng)停止加熱；試驗(yàn)結(jié)果可存盤(pán)并可打印試驗(yàn)報(bào)告。
該機(jī)主要用于非金屬材料如塑料、橡膠、尼龍、電絕緣材料等的熱變形溫度及維卡軟化點(diǎn)溫度的測(cè)定。
符合標(biāo)準(zhǔn)：
GB/T1633《熱塑性塑料軟化溫度(VST)的測(cè)定》
GB/T1634《塑料彎曲負(fù)載熱變形溫度試驗(yàn)方法》
GB8802《硬聚氯乙烯(PVC-U) 管材及管件維卡軟化溫度測(cè)定方法》
ISO75 、ISO306 、ISO2507 等標(biāo)準(zhǔn)要求。
ASTM1525 ASTM D648標(biāo)準(zhǔn)的要求,廣泛用于熱塑性塑料、硬橡膠和長(zhǎng)纖維增強(qiáng)復(fù)合材料等熱變形溫度（HDT）和維卡溫度（VST）的測(cè)定。
JD-300H thermal deformation and Vicat softening point tester using PLC programmable logic controller for temperature regulation; It adopts PC to control, displacement sensor to measure deformation and draw rear time curve, and to monitor temperature and deformation test system.System stops heating automatically when the experiment is over, this machine can be set to the target temperature with temperature protection performance. This machine has industry-leading automated test lift capabilities, either at the start or at the end of the specimen holder is automatically raised or lowered function.Specimens can be placed horizontally and side. Optional experimental method of thermal deformation and Vicat. The test pressure can be selected and automatically calculated the mass loading value.Test results can be saved and print test reports
該機(jī)主要用于非金屬材料如塑料、橡膠、尼龍、電絕緣材料等的熱變形溫度及維卡軟化點(diǎn)溫度的測(cè)定。
The machine is mainly used for non-metallic materials of Vicat softening temperature, such as plastics, rubber, nylon, and heat distortion temperature of electrical insulating materials-determination etc.
主要技術(shù)參數(shù)：
型號(hào)Model
DR-300H
電腦軟件控制
配有專(zhuān)業(yè)軟件
溫度控制范圍
Temperature control range
環(huán)境溫度—300℃
ambient temperature—300℃
升溫速率Heating rate
（120±10）℃/h (12±1)℃/6min (50±5)℃/h (5±0.5)℃/6min
溫度示值誤差
Temperature indication error
0.1℃
溫度控制精度
Temperature control accuracy
±0.5℃
形變示值誤差Maximum deformation indication error:
±0.01mm
變形測(cè)量范圍
Deformation Measurement range
0—1.5mm
試樣架個(gè)數(shù)Sample holder Count
3個(gè)
負(fù)載桿及托盤(pán)質(zhì)量
Quality rods and pallet load
68g
跨距Span
64mm、100mm
加熱介質(zhì)Heating medium
甲基硅油（運(yùn)動(dòng)粘度一般選擇200厘斯）或變壓器油Methyl silicone oil (select 200 CST kinematic viscosity) or transformer oil
冷卻方式
Cooling:
120以上水冷或自然冷卻，120以下自然冷卻。More than 120 water cooling or natural cooling, below 120 natural cooling.
加熱功率Heating power
4kw
儀器尺寸Instrument Size
528mm×545mm×37mm
電源Power supply
AC220V±l0%、5OHz