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.
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。 北京专业分析仪采购配置SmartLine® Remote远程诊断功能。
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.
Procedure - Solid Samples
Determine the instrument blank.
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 3 Standard replicates.
Weigh approximately *** grams of a calibration/drift standard, enter the mass and standard identification into appropriate replicate fields.
Note: LECO Reference Materia***o not require preparation.See preparation statement on the reference material certificate.
采用三个**的红外器检测氧含量，同时检测CO和CO2，然后在转化为CO2集中检测。
Procedure – Powder/Chip Samples
Instrument calibration/drift correction.
Press the Analyze button on the instrument screen. After a short delay, the loading head slide-block will open.
Place the Nickel Capsule containing the sample into the open port at the top of the loading head.
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.
高速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。江苏美国LECO分析仪厂家报价
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.
江苏美国LECO分析仪厂家报价
