氧氮氢分析仪厂家报价

LECO—Your source for total analytical solutions

CS CS 844 and 744 Series: Carbon/Sulfur by Combustion

Carbon and sulfur determination by combustion infrared detection

Quick, accurate, and affordable determination for both production control and research

Calibration, analysis, evaluation, and diagnostic functions accessible via user-friendly brand software

GDS GDS 500A and 850A Atomic Emission Spectrometers

Spectral range from 120 to 800 nm

Continuous profile of concentration/thickness

Large, dynamic range with concentrations from ppm to 100% by weight

Short analysis time (minutes)

配置SmartLine® Remote远程诊断功能。氧氮氢分析仪厂家报价

氧氮氢分析仪是快速、准确分析氧、氮、氢元素的、高性能仪器，整机采用模块化、一体化设计，即主机由可靠的脉冲电极炉、高灵敏高精度的检测系统、布局合理和气密性好的气路系统、可靠耐用的电源系统、稳定的电路系统、高校节能的水循环散热系统等六个**的硬件模块单元组成。

氧氮氢分析仪的测量原理：

测量范围非常***。分析样品时，样品被称重后放到样品端口中，然后用载气进行冲洗，防止大气（含氧气和氮气）进入到炉子系统中。

石墨坩埚在脉冲炉中脱气，以尽量减少自带的污染。经过稳定阶段后样品落入坩埚中并熔融。样品中的氧与石墨坩埚中的碳反应生成一氧化碳。氮和氢以单质的形式释放。载气和样品气体通过粉尘过滤网后再进入到氧化铜催化炉中，将一氧化碳氧化成二氧化碳。

二氧化碳进入到红外池中用于测定氧含量，被测后的气体导入化学试剂管，这时二氧化碳和水被化学试剂除去，氮元素通过热导检测池含量被测定。测量氢时，载气换为氮气，样品气体通过舒茨试剂而不是氧化铜催化剂。测氧和氮时也可采用更廉价的氩气作为载气。 氧氮氢分析仪厂家报价20位试样自动进样系统。

Procedure - Solid Samples

Determine the instrument blank.

Repeat steps 2b through 2g a minimum of three times.

Set the blank following the procedure outlined in the operator's instruction manual.

Instrument calibration/drift correction.

Login a minimum of 3 Standard replicates.

Weigh approximately *** grams of a calibration/drift standard, enter the mass and standard identification into appropriate replicate fields.

Note: LECO Reference Materia***o not require preparation.See preparation statement on the reference material certificate.

Method Selection

Two methods are described in this application note; either method can be used to analyze iron, steel, nickel-, and cobalt-base alloys. The Precision Method is recommended for general use and will provide the best precision and accuracy throughout the typical O, N, and H concentrations found in this group of metals; approximate cycle time is 3.5 minutes. The Fast Track method can be used where speed of analysis is a critical component; for example, when molten metal is being sampled and results are required in the shortest possible time. This method will produce suitable results for most samples; approximate cycle time is 2.25 minutes. As noted above, sampling and sample preparation are key elements to accurate O, N, and Hdetermination as well. It is up to the user to determine which method best meets their needs.

提供各种无机材料、钢铁、有色金属、硬质合金陶瓷材料中宽范围的氧氮氢同时测定。

力可ONH836氧氮氢分析仪

特点和优势

国际**的非色散红外及热导检测器 ，无移动部件，不需要手动调整

采用三个**的红外器检测氧含量，同时检测CO和CO2，然后在转化为CO2集中检测，原理上是**完善的，所以不仅可以保证中间量程的测量精度，在**含量和高含量的检测范围内同样可以满足精度要求

高性能的红外检测器配置***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检测器的长期稳定性

力可专利的动态流量补偿控制DFC系统，保证了流量系统的完善，可以精确控制整个气路中的流量，保持流量恒定**改善了材料中氮分析的准确度

可以旁路的OMI-2 气路强化过滤装置增强了检测器的稳定性，使得分析结果更加准确

可选自动功能

20位试样自动进样系统

通用下电极坩埚支座，容纳各种坩埚使用

无需人工干预的全自动清扫系统

OHN836系列仪器采用惰性熔融法。氧氮氢分析仪厂家报价

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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.