專業(yè)分析儀

力可ONH836氧氮氫分析儀

特點和優(yōu)勢

國際**的非色散紅外及熱導(dǎo)檢測器 ，無移動部件，不需要手動調(diào)整

采用三個**的紅外器檢測氧含量，同時檢測CO和CO2，然后在轉(zhuǎn)化為CO2集中檢測，原理上是**完善的，所以不僅可以保證中間量程的測量精度，在**含量和高含量的檢測范圍內(nèi)同樣可以滿足精度要求

高性能的紅外檢測器配置***恒溫絕熱技術(shù)，消除了外界環(huán)境溫度的干擾

長壽命的紅外發(fā)射光源和無漂移的電路設(shè)計保證檢測器的長期穩(wěn)定性

力可**的動態(tài)流量補(bǔ)償控制DFC系統(tǒng)，保證了流量系統(tǒng)的完善，可以精確控制整個氣路中的流量，保持流量恒定**改善了材料中氮分析的準(zhǔn)確度

可以旁路的OMI-2 氣路強(qiáng)化過濾裝置增強(qiáng)了檢測器的穩(wěn)定性，使得分析結(jié)果更加準(zhǔn)確

可選自動功能

20位試樣自動進(jìn)樣系統(tǒng)

通用下電極坩堝支座，容納各種坩堝使用

無需人工干預(yù)的全自動清掃系統(tǒng)

可選六軸可旋轉(zhuǎn)觸摸屏幕，增強(qiáng)了操作的工效和直觀性。專業(yè)分析儀

Procedure – Powder/Chip Samples

Instrument calibration/drift correction.

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

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

Press the Analyze button on the instrument screen,the lower electrode will close and the analysis sequence will start and end automatically.

Repeat steps 3b through 3i a minimum of three times for each calibration/drift standard used.

美國LECO力可氧氮氫分析儀ONH836（氧氮氫聯(lián)測儀）系列硬件部分

特點和優(yōu)勢

1、爐頭區(qū)域LED照明系統(tǒng)

2、爐頭快速拆裝的粉塵過濾裝置

3、裝有自動旁路閥的可快速拆裝氧水捕集裝置

4、**的動態(tài)流量補(bǔ)償（DFC）保證熱導(dǎo)池氣體流量、壓力恒定

5、改進(jìn)的紅外檢測池技術(shù)

     新紅外池的恒溫絕熱技術(shù)消除了外界環(huán)境溫度的干擾

   長壽命的紅外發(fā)射光源和無漂移的電路設(shè)計保證紅外檢測池的長期穩(wěn)定

   氧高低雙量程采用3個碳紅外檢測器，同時檢測一氧化碳和二氧化碳，保證準(zhǔn)確定量

  6、高效脈沖爐冷卻系統(tǒng)

   強(qiáng)力內(nèi)循環(huán)水冷裝置

   雙直流風(fēng)扇保證持續(xù)冷卻，不受電壓波動的影響

   新電極爐頭設(shè)計，提高脈沖爐熱交換效率

  7、全自動分析系統(tǒng)（可選）

   自動清掃裝置

   20位或100位全自動分析系統(tǒng)

   高速全自動真空除塵裝置直接將粉塵排至儀器外部捕集器中，消除環(huán)境污染

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.

強(qiáng)力內(nèi)循環(huán)水冷裝置。

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.

***紅外池的恒溫絕熱技術(shù)消除了外界環(huán)境溫度的干擾。專業(yè)分析儀

可以旁路的OMI-2 氣路強(qiáng)化過濾裝置增強(qiáng)了檢測器的穩(wěn)定性，使得分析結(jié)果更加準(zhǔn)確。專業(yè)分析儀

氧氮氫分析儀是快速、準(zhǔn)確分析氧、氮、氫元素的、高性能儀器，整機(jī)采用模塊化、一體化設(shè)計，即主機(jī)由可靠的脈沖電極爐、高靈敏高精度的檢測系統(tǒng)、布局合理和氣密性好的氣路系統(tǒng)、可靠耐用的電源系統(tǒng)、穩(wěn)定的電路系統(tǒng)、高校節(jié)能的水循環(huán)散熱系統(tǒng)等六個**的硬件模塊單元組成。

氧氮氫分析儀的測量原理：

測量范圍非常***。分析樣品時，樣品被稱重后放到樣品端口中，然后用載氣進(jìn)行沖洗，防止大氣（含氧氣和氮氣）進(jìn)入到爐子系統(tǒng)中。

石墨坩堝在脈沖爐中脫氣，以盡量減少自帶的污染。經(jīng)過穩(wěn)定階段后樣品落入坩堝中并熔融。樣品中的氧與石墨坩堝中的碳反應(yīng)生成一氧化碳。氮和氫以單質(zhì)的形式釋放。載氣和樣品氣體通過粉塵過濾網(wǎng)后再進(jìn)入到氧化銅催化爐中，將一氧化碳氧化成二氧化碳。

二氧化碳進(jìn)入到紅外池中用于測定氧含量，被測后的氣體導(dǎo)入化學(xué)試劑管，這時二氧化碳和水被化學(xué)試劑除去，氮元素通過熱導(dǎo)檢測池含量被測定。測量氫時，載氣換為氮氣，樣品氣體通過舒茨試劑而不是氧化銅催化劑。測氧和氮時也可采用更廉價的氬氣作為載氣。 專業(yè)分析儀