湖南LECO氧氮氢分析仪优惠价格

Sample Preparation

Sampling and sample preparation of refractory metals such as titanium and zirconium is somewhat different from that of steel. Unlike steel samples, hydrogen is not as mobile in this group of materials; therefore, storage in liquid nitrogen or dry ice is not required. However, it is important to keep the sample cool when cutting or sectioning. Sample preparation for oxygen and nitrogen determination has beendifferent from that of hydrogen determination.

Cornerstone氧氮氢分析软件分成4个主要部分：分析、诊断、设定、仪器，界面可快速导航和组织。湖南LECO氧氮氢分析仪优惠价格

氧氮氢分析仪的优点

采用惰气熔融技术，同时测定氧、氮和氢元素含量

新设计封闭气路系统，优化气路循环，使氧氮氢测量更准确

可采用更廉价的氩气作为载气

催化炉温度可调，使氧的测量更加准确

气路系统都采用电磁阀控制，新增分段式漏气检测

水冷样品加样端口，有效隔绝杂质气体侵入

仪器配置和氧、氮、氢测量范围可灵活选择

新设计的高灵敏度红外检测池和热导池，有极低的检出限

分析时间短

脉冲炉功率高达8.5kw，温度3000℃

颗粒状样品无需胶囊包裹，使用经济实惠

化学试剂及管路隐藏在门后（可移除）

强大的分析软件（支持数据和应用报告导出、增加评论区及其他更多功能）。

单点和多点校正（线性回归）

可采用自来水、冷却循环水机或交换机冷却

新设计的产品可用于各类生产控制和实验室。

Summary

The determination of the amount of oxygen, nitrogen, and hydrogen in iron, steel, nickel-, and cobalt-base alloys represents some of the most important quality metrics for these materials. Oxygen is used to create steel from pig iron by removing excess carbon. Oxygen content must be controlled to limit the amount of carbon monoxide that can be formed during solidification which may cause excessive porosity. Nitrogen is considered both an impurity as well as an important alloying agent. Itcan be present as a nitride or interstitially in its gaseous form. Increased nitrogen content is known to increase yield and tensile strength, thus decreasing ductility and formability. Excessive levels may evolve during solidification thus increasing porosity. High hydrogen content is the primary cause of embrittlement, blistering and flaking due to its high

mobility through the lattice and provides no potential alloying benefits. The ONH836 utilizes a high-power

electrode furnace to quickly and efficiently release the target gases from within the sample, which allows

for a very rapid simultaneous determination of oxygen, nitrogen, and hydrogen.

Procedure - Solid Samples

Instrument calibration/drift correction.

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.

Repeat steps 3b through 3j a minimum of three times for each calibration/drift standard used.

Calibrate/drift following the procedure outlined in the operator's instruction manual.

美国力可LECO氧氮氢分析仪

公司介绍：

美国力可公司(LECO)始于1936年 ，以生产用于冶金、机械、能源、化工、农业、食品及科研开发领域的各种分析仪器。

ONH836氧气/氮气/氢气元素分析仪设计用于使用惰性气体熔融技术对无机材料，铁和非铁合金以及耐火材料中的氧，氮和氢含量进行宽范围的测量。

坚固的样品加载区域可简化日常维护并大程度减少大气污染

用于氧气检测的三重红外电池可实现业内大的检测范围

通过自动化选项提高实验室生产率

可用的自动清洁器大程度地减少了两次分析之间的手动清洁需求

适用于坩埚和样品的20位往复式装载机

安装在动臂上的触摸屏界面可提供更好的人体工程学设计和直观的操作

红外（IR）和热导率（TC）检测器，没有活动部件，也无需手动调节

改善TC电池的稳定性

可绕过的OMI-2载气洗涤塔，提高了TC电池的稳定性

获得Dyanamic流量补偿可进一步增强TC细胞的稳定性

用户友好界面的Cornerstone™ 软件。山西美国LECO氧氮氢分析仪厂家直销

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性。湖南LECO氧氮氢分析仪优惠价格

Instrument calibration/drift correction

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

g. Firmly place a graphite crucible on the lower electrode tip.

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

i. Repeat steps 3b through 3h a minimum of three times for each calibration/drift standard used.

. Calibrate/drift following the procedure outlined in the operator's instruction manual.

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