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分析仪价格
仪器的亮点和优势：
特点和优势
·炉头区域LED照明系统
·炉头快速拆装的粉尘过滤装置
·装有自动旁路阀的可快速拆装氧水捕集装置
·**的动态流量补偿（DFC）保证热导池气体流量、压力恒定
高效脉冲炉冷却系统
·强力内循环水冷装置热交换效率
·双直流风扇保证持续冷却，不受电压波动的影响
·***电极炉头设计，提高脉冲炉
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
·高效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
改进的红外检测池技术
·***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性
·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 江苏元素分析仪价格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。
Software Features & Benefits
Cornerstone brand software is divided into four main sections—Analysis, Diagnostics, Settings, and Instrument—for simplified navigation and organization. Toolbars, sliders, and drop-down menus makeit easy to set parameters for calibration and data processing. The software also includes real-time ambient monitors, with fully animated system diagrams. Advanced diagnostic features include a thorough digital on-board manual, maintenance animations, photo illustrations, and screen captures that quickly provide the direction needed without having to refer to multiple manuals. also Cornerstone supports extended data archiving and flexible reporting capabilities.
Procedure – Powder/Chip Samples
Determine the instrument blank.
Press the Analyze button on the instrument screen, the lower electrode will close and the analysis sequence will start and end automatically.
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 three Standard reps.
Weigh approximately *** grams of a calibration/drift standard into a *** Nickel Capsule; enter the mass and standard identification into appropriate rep fields. If applicable, place the nickel capsule in the appropriate autoloader position.
高级诊断程序包括全数字化的在线操作手册、维护模拟演示、图片说明等提供快速指导。
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.
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。山西美国LECO分析仪价格
Sample Preparation
Sampling and sample preparation is an important issue because traditional methods used to obtain samples for oxygen and nitrogen determination are different from those recommended for hydrogen, especially when sampling molten metal. The main difference in steel sampling procedures for oxygen/nitrogen and hydrogen is due to the mobilityof hydrogen. Special precautions must be used when sampling for hydrogen. From molten steel and iron, a sample must be quickly quenched in cold water and chilled in a refrigerant such as liquefied nitrogen or a mixture of acetone and solid carbon dioxide in order to reduce losses of hydrogen from diffusion. Losses of oxygen and nitrogen from diffusion are not a problem. A sample that is taken for hydrogen and
chilled in a refrigerant can also be used for oxygen and nitrogen determination. However, a sample that is typically taken for oxygen and/or nitrogen determination is not suitable for hydrogen determination due to hydrogen loss (diffusion). Surface contamination must be removed by filing or light grinding, using care not to overheat the sample.
山西美国LECO分析仪价格
