湖南元素分析仪供应商

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.

力可创新的批次和重复样品数据分组功能极大简化了样品结果输出和结果标准偏差的自动计算。湖南元素分析仪供应商

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.

新疆LECO氧氮氢分析仪Cornerstone氧氮氢分析软件同时支持***的数据文档格式和可变的报告格式。

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.

力可ONH836氧氮氢分析仪

特征

稳固的炉头试样加载结构

试样加载过程中完全密闭，消除大气的中可能带来的杂质的污染；

简化日常分析所需的炉头进样部分机械维护工作。

可选的自动功能

上下电极自动清扫装置；

20位试样及坩埚自动进样装置。

附加功能及优点

可选六轴可旋转触摸屏幕，增强了操作的工效和直观性；

可选具有压力补偿和温度控制性能的标气检测气路；

新型气路管道减少气路连接阀，使得漏气，断路故障更少；

配置SmartLine Remote远程诊断功能。

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。

Procedure – Powder/Chip 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 3i a minimum of three times for each calibration/drift standard used.

简化日常分析所需的炉头进样部分机械维护工作。湖南元素分析仪供应商

Procedure - Solid Samples

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

Determine the instrument blank.

Login a minimum of 3 Blank replicates.

Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open. Place a 502-344 Nickel Basket into the 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.