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产品详情
WJR-200AM氧化诱导时间试验机
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WJR-200AM氧化诱导时间试验机 
产品详情

WJR-200AM氧化诱导时间试验机

产品介绍:

氧化诱导时间试验机是在程序控制温度下,测定物质氧化诱导时间的专业设备,是测定管材氧化诱导期的专业仪器。可以自动计记录管材、材料在氮气气氛中以恒定速度加热式样及参比物,当达到指定温度时,气氛切换为相同流速的氧气。之后样品在该温度下恒温,直到热曲线上显示有氧化反应发生。从氧气流开始流入的时刻,到发生氧化反应的时间间隔,既为氧化诱导期。仪器可以自动记录氧化诱导期温度、时间曲线,还可测量物质与参比物之间的温度差与温度关系。自动记录描述样品与参比物之间的温度(△T)随温度或时间的变化关系。还可以检测相转变,熔化,结晶结构的转变,沸腾,升华,蒸发,脱氢反应,断裂或分解反应,氧化或还原反应,晶格结构的破坏和其他化学反应。

技术特点:

1:氧化诱导期专用测试仪,客户一键式操作,软件全自动运行。

2:全新传感器样品支架,全封闭结构设计,防止物品掉入到炉体中去。

3:仪器符合GB/T 19466.3- 2009/ISO 11357-3 :2013 第6部分 氧化诱导期氧化诱导时间(等温OIT)和氧化诱导温度(动态OIT)的测定。

4:内嵌10寸超大工业级别的电脑,无需另配电脑,一体化设备,显示信息丰富,包括设定温度、样品温度,氧气流量,氮气流量,差热信号,各种开关状态,流量归零。

5:仪器右侧标配四路USB接口,方便用户外接鼠标、键盘、打印机,U盘等外部设备,方便用户使用。

6:仪器内部USB通讯接口,相对于原有仪器,稳定性更强、通用性强,通信可靠不中断,支持自恢复连接功能。

7:数字气体质量流量计自动切换两路气氛流量,切换速度快,稳定时间短。

8:标配标准样品,方便客户校正恒温系数。

9:预安装软件,无电脑适应性问题,减少由于更换使用电脑,安装驱动错误导致的连接等问题。

10:支持用户自编程程序,实现测量步骤全自动化。软件提供数十种指令,用户可根据自己的测量步骤,灵活组合各指令,并保存。复杂的操作就简化成一键操作。

产品应用范围:

氧化诱导时间(OIT)是测定样品在高温(200摄氏度)氧气条件下开始发生自动催化氧化反应的时间,是评价材料在成型加工、储存、焊接和使用中耐热降解能力的指标。

氧化诱导期(简称OIT)方法是一种采用差热分析法(DTA)以塑料分子链断裂时的放热反映为依据,测试塑料在高温氧气中加速老化程度的方法。

其原理是:将塑料式样与惰性参比物(如氧化铝)置于差热分析仪中,使其在一定温度下用氧气迅速置换式样室内地惰性气体(如氮气)。测试由于式样氧化而引起的DTA曲线(差热谱)的变化,并获得氧化诱导期(时间)OIT(min),以评定塑料的防热老化性能。

仪器符合G B /T 19466.3 /ISO 11357-3 第6部分氧化诱导期。氧化诱导时间(等温OIT)和氧化诱导温度(动态OIT)的测定。

氧化诱导期已经被纳入管道行业及电线电缆强检范围。

技术参数:

1: 温度范围: 室温~500      

2: 温度分辨率: 0.01℃          

3: 升温速率: 0.180/min  

4: 控温方式:升温,恒温(全自动程序控制)

5: DSC量程:  0±500mW    

6: DSC解析度: 0.001mW                        

7: DSC灵敏度: 0.001mW

8: 工作电源: AC 220V  50Hz或定制

9:气氛控制气体:氮气 氧气(仪器自动切换)

10:气体流量:0-200mL/min  

11: 气体压力:0.2MPa

12: 气体流量精度:0.2mL/min  

13: 选配坩埚:铝质坩埚Φ6.7*3mm  

14: 参数标准: 配有标准物质(铟,锡,锌),用户可自行校正温度和热焓

15: 数据接口:标准USB接口(接口内置,无需外部连接)

16: 显示方式: 10寸工业电脑触摸显示,可外接鼠标、键盘、U盘、打印机

仪器软件结构:

氧化诱导曲线



温度设置参数

仪器操作参数


WJR-200AM oxidation induction time tester

Product Description:

Oxidation induction time testing machine is a professional equipment to determine the induction time of material oxidation under the program controlled temperature. It is a professional instrument to determine the induction period of pipe oxidation. It can automatically record the heating patterns and reference materials at a constant rate in nitrogen atmosphere. When the specified temperature is reached, the atmosphere is switched to the same flow rate of oxygen. After that, the sample was kept constant at this temperature until the oxidation curve appeared on the thermal curve. The time from the beginning of oxygen flow to the time interval of oxidation reaction is both the induction period of oxidation. The instrument can automatically record the temperature and time curves during the induction period of oxidation, and can also measure the temperature difference and temperature relationship between the material and the reference. Automatically record the relationship between the temperature (delta T) between the sample and the reference material with the change of temperature or time. It can also detect phase transition, melting, crystal structure transition, boiling, sublimation, evaporation, dehydrogenation, fracture or decomposition, oxidation or reduction, lattice structure destruction and other chemical reactions.

Technical characteristics:

1: oxidation induction period special tester, customer one button operation, software fully automatic operation.

2: new sensor sample bracket, totally enclosed structure design, to prevent items falling into the furnace body.

3: The instrument conforms to GB / T 19466.3-2009/ISO 11357-3:2013 Part 6 Oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) determination.

4: Built-in 10 inch super industrial grade computer, no need to use another computer, integrated equipment, rich display information, including setting temperature, sample temperature, oxygen flow, nitrogen flow, differential thermal signal, various switching state, flow to zero.

5: The instrument is equipped with four-way USB interface on the right side, which is convenient for users to connect mouse, keyboard, printer, U disk and other external devices.

6: The USB communication interface inside the instrument is more stable and versatile than the original instrument. The communication is reliable and uninterrupted, and it supports the function of self-recovery connection.

7: digital gas mass flowmeter automatically switches two flow of atmosphere, fast switching speed and short settling time.

8: standard samples are fitted to facilitate customer calibration of constant temperature coefficient.

9: Pre-installed software, no computer adaptability problems, to reduce the replacement of the computer, installation of driver errors caused by connection problems.

10: support the user self programming procedure, and realize the full automation of measurement steps. The software provides dozens of instructions, which can be flexibly combined and saved by users according to their own measurement steps. The complex operation is simplified to one key operation.

Product application scope:

Oxidation Induction Time (OIT) is a method to determine the time of auto-catalytic oxidation of samples under high temperature (200 degrees Celsius) oxygen. It is an index to evaluate the thermal degradation resistance of materials in molding, storage, welding and use.

The oxidation induction period (OIT) method is a differential thermal analysis (DTA) method based on the exothermic response of plastic molecular chain breakage, to test the accelerated aging degree of plastics in high temperature oxygen.

The principle is: plastics and inert reference materials (such as alumina) placed in the differential thermal analyzer, so that at a certain temperature with oxygen quickly displace the indoor sample of inert gases (such as nitrogen). The DTA curves (DTA curves) caused by the oxidation of the samples were measured and the oxidation induction period (time) OIT (min) was obtained to evaluate the thermal aging properties of the plastics.

The instrument conforms to the sixth part of G B /T 19466.3 /ISO 11357-3 oxidation induction period. Oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) were measured.

Oxidation induction period has been included in the pipeline industry and the strong inspection scope of wire and cable.

Technical parameters:

1: temperature range: ~500 C at room temperature.

2: temperature resolution: 0.01 C

3: heating rate: 0.1 ~ 80 C /min

4: temperature control mode: heating, constant temperature (automatic program control).

5: DSC range: 0 to + 500mW

6: DSC resolution: 0.001mW

Sensitivity of 7: DSC: 0.001mW

8: working power: AC 220V 50Hz or customization

9: atmosphere control gas: nitrogen oxygen (instrument switching automatically)

10: gas flow rate: 0-200mL/min

11: gas pressure: 0.2MPa

12: gas flow accuracy: 0.2mL/min

13: matching Crucible: Aluminum crucible, 6.7*3mm

14: parameter standard: with standard substance (indium, tin, zinc), users can automatically correct temperature and enthalpy.

15: data interface: Standard USB interface (built-in interface, no external connection).

16: display mode: 10 inch industrial computer touch display, external mouse, keyboard, U disk, printer.

Instrument software structure:

Oxidation induction curve