江苏专业元素分析仪供应商

Procedure – Powder/Chip Samples

Determine the instrument blank.

Press the Analyze button on the instrument screen again, the loading head slide-block will close and the lower electrode will open.

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

Add approximately 0.05 g of *** Graphite Powder to a 782-720 Graphite Crucible.

Firmly place the crucible on the lower electrode tip or appropriate autoloader position.

氧氮氢分析仪

氧氮氢分析仪是一种用于材料科学领域的仪器，于2016年03月09日启用。

技术指标

测量范围： ON 低氧0.0－300ppm OH 低氧0.0－300ppm 高氧0.0－2% 高氧0.0－2% 低氮0.0―300ppm 低氢0.0－50ppm 高氮0.0－2% 高氢0.0－1000ppm 灵敏度： 氧0.01ppm；氮0.1ppm；氢0.01ppm。

主要功能

该仪器配置有16位微处理器和两个**的分别检测高氧和低氧的 红外检测池。氮和氢通过双重范围的热导检测池测量。分析过程中可自动实现从 低范围到高范围的切换。样品在高功率脉冲炉的石墨坩埚中加热可达3000℃以上 高温，脉冲炉采用循环水冷却。该仪器具有灵敏度高、性能好、测量范围宽和分 析结果准确可靠等优点。ONH-2000氧氮氢分析仪是为快速、准确测定铜、钢、铸 铁、合金、钛、镍、钼、锆、陶瓷和其它无机材料中氧、氮、氢的含量而专门设计 制造的。 山西分析仪厂家供应***触摸屏技术，用户友好界面软件进行校正、分析、诊断等。

Procedure – Powder/Chip Samples

Instrument calibration/drift correction.

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

Login Sample with the appropriate number of reps.

Weigh approximately *** grams of appropriately prepared sample into a *** Nickel Capsule, enter mass and sample identification into appropriate rep fields. If applicable, place the nickel capsule in the

appropriate autoloader position.

Repeat steps 3c through 3i for sample analysis.

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.

稳固的炉头试样加载结构。

ONH836氧氮氢分析仪

高频燃烧红外检测技分析无机材料中的碳、硫含量。

采用惰性气体保护熔融法，提供各种无机材料、钢铁、有色金属、硬质合金、难熔金属、陶瓷等材料中宽范围的氧氮氢同时分析。

该仪器配置MS Windows®的软件接口，专为触摸屏操作定制。长期的开发研究与客户反馈相结合，这个简单方便的软件使得用户可以快速完整访问仪器控制，分析设置，故障诊断，数据报告， **提高日常分析的效率并节省用户宝贵的时间。 可选的Cornerstone® Mobile软件功能，使得用户可以在手机，便携式电脑及台式电脑上便捷的访问仪器数据，分析曲线图形以及仪器的状态，实现对仪器的遥控。 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。江苏专业元素分析仪供应商

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。江苏专业元素分析仪供应商

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.

江苏专业元素分析仪供应商