氧氮氢分析仪的优点
采用惰气熔融技术,同时测定氧、氮和氢元素含量
新设计封闭气路系统,优化气路循环,使氧氮氢测量更准确
可采用更廉价的氩气作为载气
催化炉温度可调,使氧的测量更加准确
气路系统都采用电磁阀控制,新增分段式漏气检测
水冷样品加样端口,有效隔绝杂质气体侵入
仪器配置和氧、氮、氢测量范围可灵活选择
新设计的高灵敏度红外检测池和热导池,有极低的检出限
分析时间短
脉冲炉功率高达8.5kw,温度3000℃
颗粒状样品无需胶囊包裹,使用经济实惠
化学试剂及管路隐藏在门后(可移除)
强大的分析软件(支持数据和应用报告导出、增加评论区及其他更多功能)。
单点和多点校正(线性回归)
可采用自来水、冷却循环水机或交换机冷却
新设计的产品可用于各类生产控制和实验室。
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.
浙江专业元素分析仪哪家好力可**的动态流量补偿控制DFC系统,保证了流量系统的完善,可以精确控制整个气路中的流量。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.
氧氮氢分析仪的常见故障及解决方法
供电正常、通讯正常,点击确认键后分析仪不工作。这是没有水流,炉子温度太高或仪器通道电压不正常。如没有水流,炉子温度太高这些信息会显示在显示器画面上,但没有信息显示说明这两项正常。接下来检查仪器通道零位电压,如果比±3V高出1V以上,可能是因为气瓶空了,或者是空气进入到分析仪中。检查并更换化学试剂,如果有空气进入热导池里,热导池的电压就会<-6V,此时打开右面的门,堵住炉子气体进口,10s后,热导池电压值必然升高。经过逐一排查,**终确认碱石棉有问题,更换后仪器正常。 20位或100位全自动分析系统。
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.
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。安徽美国LECO分析仪多少钱
氧氮氢分析仪的操作过程
氧氮氢分析仪可根据的用户的要求定制。该分析仪配备两个不同灵敏度的探测器,在更多的应用中保证了准确度。
操作简单而且安全。在样品称重以后,样品的重量数据通过电子界面传导至相连的电脑中,也可以在软件界面中手动输入样品的重量。
样品被放置在水平放置的炉子中的低温区域。分析开始以后,炉子开始向上转动,然后样品逐渐落入加热区。通过添加载体气体氮气,氢气被扩散出来并且随载体被传导至一个高灵敏度的热传导测量池。
通常一次测量的时间在3到15分钟之间。在分析的过程中设备可以显示测试信号和设备的参数,从信号的评估到结果在界面上的显示全部自动完成;而测量数据则被传导至LIMS(实验室信息管理系统)中。无需过多的保养和维护,而除尘器和净化管的维护工作也方便。
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。公司从事仪器仪表多年,有着创新的设计、强大的技术,还有一批**的专业化的队伍,确保为客户提供良好的产品及服务。在社会各界的鼎力支持下,持续创新,不断铸造***服务体验,为客户成功提供坚实有力的支持。
SamplePreparationSamplingandsamplepreparationofref
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