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.
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。浙江分析仪多少钱
736 Series: Oxygen/Nitrogen by Inert Gas Fusion
The 736 family of Elemental Analyzers is designed for routine measurement of oxygen and nitrogen content of
inorganic materials, ferrous and nonferrous alloys, andrefractory materials using the inert gas fusion technique.
These instruments feature our Cornerstone brand ® software, a custom interface designed specifically for
touch-screen operation. Developed by combining longterm research with customer feedback, this easy-to-use
software gives you complete access to instrument control, analysis settings, diagnostics, reporting, and more—without sacrificing valuable bench space.
美国LECO分析仪多少钱氧高低双量程采用3个碳红外检测一氧化碳和二氧化碳,保证准确定量。
ONH836系列:氧氮氢分析仪(熔融法)
力可ONH836系列仪器采用惰性熔融法,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分析。
ONH836系列仪器通过***采纳客户的反馈意见和创新设计,力可***仪器采用触摸屏技术和在线软件平台,增强了仪器的可操作性、降低了分析成本、节省实验室桌面空间。
用户友好界面的Cornerstone™ 软件
力可**的Cornerstone 氧氮氧分析软件采用触摸屏界面使用户可完整的达到分析控制、方法设定、在线诊断、数据报告。Cornerstone 氧氮氧分析软件允许用户在单一分析界面中完成日常的所有工作,快速而且简单易用。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,减少了繁琐的额外数据处理。
User-Friendly Brand Software Cornerstone
LECO's exclusive brand software enables the user to have complete access to analysis Cornerstone control, method settings, diagnostics, reporting, and more in a highly organized and immersive environment. Designed through a collaboration of customer feedback and innovative engineering,Cornerstone allows the user to conduct all of their day-to-day operations within a single Analysis screen designed for speed and ease-of-use. Our innovative grouping of sample data into sets and replicates simplifies the data output and automatically calculates relevant statistics, alleviating the need for additional data processing.
Cornerstone氧氮氧分析软件允许用户在单一分析界面中完成日常的所有工作,快速而且简单易用。
Oxygen, Nitrogen, and Hydrogen in Refractory Metals
Summary
Oxygen and nitrogen are alloying elements in titanium, and are also classified as alpha stabilizing elements as they promote alpha phase alloys. Interstitial oxygen and nitrogen levels can be used to regulate the tensile strength of the material, but due to its high solubility can cause unwanted surface embrittlement. This phenomenon can be leveraged,however, under controlled processing to create surface films that increase surface hardness and wear properties.
ONH836仪器通过***采纳客户的反馈意见和创新设计。山西专业元素分析仪供应商用户友好界面的Cornerstone™ 软件。浙江分析仪多少钱
氧氮氢分析仪的常见故障及解决方法:
氧和氮空白值超过20。这是由于气流小,不能将炉子中的空气驱赶出去。可调节气体流量,调节载气压力在0.2~0.4MPa。接通仪器载气,放一个石墨坩埚在下电极上,打开主电源开关,点击软件上的关炉按钮,关闭炉子并等待10s。调节流量调节器,直到流量计a显示为30L/h,打开炉子。调节调节器直到流量计b显示为50L/h,再次关闭炉子。如果以上设置不稳定,则增加流量至100L/h,反复调节直至仪器稳定。 浙江分析仪多少钱