广东氧氮氢分析仪供应商

Sample Preparation

Typically, titanium and zirconium samples are chemically etched to remove surface contamination when oxygen and nitrogen are determined. However, etching can introduce hydrogen into the sample.

ASTM method E 1409 "Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert

Gas Fusion Technique", as updated in 1996, permits either etching or abrading (filing) of the test specimen.

ASTM E 1447 "Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal

Conductivity/Infrared Detection Method" permits surface preparation by abrading (if necessary to remove

contamination). Differences in sample preparation present somewhat of a dilemma regarding simultaneous

determination of O, N, and H in titanium. However, abrading samples with a file to remove surface

contamination will yield accurate O, N, and H results. 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.

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.

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.

Instrument Highlights and Features

Features and Benefits

LED light ring illuminates the furnace area

Choice of either argon or helium carrier gas

Novel electrode design increases heat transfer efficiency for increased stability

Non-touch interface systems are also available

User-friendly brand software

High-Performance Detector Design

Thermostatic construction provides increased protection from ambient temperature fluctuations

Optimized emitter control and detection circuitryimproves the IR cell lifetime and long-term stability,

resulting in superior accuracy and precision

Infrared detection for the determination of oxygen, thermoconductivity detection for the determination

of nitrogen

国际**的非色散红外及热导检测器 ，无移动部件，不需要手动调整。

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.

全自动分析系统（可选） 。广东氧氮氢分析仪供应商

Oxygen, Nitrogen, and Hydrogen in Refractory Metals

Summary

Titanium is a metal that can be combined with elements such as aluminum, vanadium, molybdenum, and tin to produce high-strength, lowdensity, and corrosion-resistant alloys. Titanium alloys are used by the military, medical devices, sporting goods, and aerospace industries because of these properties, and due to the strict demands of these industries, effort needs to be taken to assure that the material meets the highest of quality standards.

广东氧氮氢分析仪供应商

上海禹重实业有限公司致力于仪器仪表，是一家服务型的公司。公司业务分为光谱仪，色谱仪，质谱仪，样品前处理等，目前不断进行创新和服务改进，为客户提供良好的产品和服务。公司秉持诚信为本的经营理念，在仪器仪表深耕多年，以技术为先导，以自主产品为重点，发挥人才优势，打造仪器仪表良好品牌。禹重科技秉承“客户为尊、服务为荣、创意为先、技术为实”的经营理念，全力打造公司的重点竞争力。