山东氧氮氢分析仪

Oxygen, Nitrogen, and Hydrogen in Refractory Metals

Summary

One of the most critical chemical specifications of titanium alloys is the hydrogen content. Too high of a

hydrogen content can cause hydrides to precipitate, which can lead to embrittlement and subsequent

cracking when the alloy is stressed. Hydrogen pickup typically occurs during downstream processing steps

such as heat treating, pickling, and cleaning.

The LECO ONH836 is a simultaneous oxygen, nitrogen, and hydrogen determinator that utilizes an electrode furnace, inert carrier gas, and both infrared and thermal conductivity detection to meet the analytical needs of the refractory metal industry. 

This application note was written specifically for use with the LECO ONH836 series determinator.

Procedure - Solid Samples

Press the Analyze button on the instrument screen again, the loading head slide-block will close and the lower electrode will open.

Clean the upper and lower electrode manually, or, if applicable, remove the crucible and press the analyze button to clean with the automatic cleaner

Add approximately 0.05 g of *** Graphite Powder to a *** Graphite Crucible.

Firmly place the crucible on the lower electrode tip or appropriate autoloader position.

Press the Analyze button on the instrument screen, the lower electrode will close and the analysis sequence will start and end automatically

Procedure – Powder/Chip Samples

Prepare the instrument as outlined in the operator's instruction manual.

Login a minimum of three Blank reps.

Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open. Insert a *** Nickel Capsule (leave capsule open) into the open port at top of loading head.

Note: samples using automation should be placed in the appropriate autoloader position before starting the analysis sequence. Once the sequence has started, the automatic analysis will start and end automatically.

Procedure – Powder/Chip Samples

Instrument calibration/drift correction.

Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open.

Place the Nickel Capsule containing the sample into the open port at the top of the loading head.

Press the Analyze button on the instrument screen again, the loading head slide-block will close and the lower electrode will open.

Clean the upper and lower electrode either manually or remove the crucible and press the analyze button to clean with an automatic cleaner if applicable.

美国LECO力可氧氮氢分析仪ONH836（氧氮氢联测仪）系列硬件部分

特点和优势

1、炉头区域LED照明系统

2、炉头快速拆装的粉尘过滤装置

3、装有自动旁路阀的可快速拆装氧水捕集装置

4、**的动态流量补偿（DFC）保证热导池气体流量、压力恒定

5、改进的红外检测池技术

     新红外池的恒温绝热技术消除了外界环境温度的干扰

   长寿命的红外发射光源和无漂移的电路设计保证红外检测池的长期稳定

   氧高低双量程采用3个碳红外检测器，同时检测一氧化碳和二氧化碳，保证准确定量

  6、高效脉冲炉冷却系统

   强力内循环水冷装置

   双直流风扇保证持续冷却，不受电压波动的影响

   新电极炉头设计，提高脉冲炉热交换效率

  7、全自动分析系统（可选）

   自动清扫装置

   20位或100位全自动分析系统

   高速全自动真空除尘装置直接将粉尘排至仪器外部捕集器中，消除环境污染

全自动分析系统（可选） 。山东氧氮氢分析仪

***红外池的恒温绝热技术消除了外界环境温度的干扰。山东氧氮氢分析仪

ONH836氧氮氢分析仪

高频燃烧红外检测技分析无机材料中的碳、硫含量。

采用惰性气体保护熔融法，提供各种无机材料、钢铁、有色金属、硬质合金、难熔金属、陶瓷等材料中宽范围的氧氮氢同时分析。

该仪器配置MS Windows®的软件接口，专为触摸屏操作定制。长期的开发研究与客户反馈相结合，这个简单方便的软件使得用户可以快速完整访问仪器控制，分析设置，故障诊断，数据报告， **提高日常分析的效率并节省用户宝贵的时间。 可选的Cornerstone® Mobile软件功能，使得用户可以在手机，便携式电脑及台式电脑上便捷的访问仪器数据，分析曲线图形以及仪器的状态，实现对仪器的遥控。

山东氧氮氢分析仪