1) nitrogen atmosphere
氮气气氛
1.
By using MMS-1G pin-on-disk high temperature and high speed friction and wear tester,the tribological properties of CrNiMo steel-H96 copper couples in nitrogen atmosphere were investigated.
利用MMS-1G型销-盘式高温高速摩擦磨损试验机研究了氮气气氛条件下CrN iMo钢/H96黄铜配副的摩擦磨损特性,利用扫描电子显微镜观察磨损表面形貌,采用能谱仪分析磨损表面及其磨屑的主要元素成分,并分析其磨损机理。
2.
Nine groups of samples,prepared from carbon black and industrial Si at different ratios,were fired in nitrogen atmosphere at five temperatures of 1 350 ℃,1 400 ℃,1 450 ℃,1 500 ℃ and 1 550 ℃,respectively.
以9组不同配料比的炭黑和单质硅为原料压制成试样,在氮气气氛下,分别于1 350,1 400,1 450,1 500,1 550℃下烧结,获得5个不同温度点合成样品;采用XRD分析技术研究试样的物相演变过程,研究C-Si系原料在氮气气氛合成过程中的物相变化和反应动力学机制。
2) nitrogen-based atmosphere
氮基气氛
1.
Taking the automotive rear axle gear as an example,the design and adjusting of nitrogen-based atmosphere carburizing process were conducted on the new-built mult-purpose chamber furnace.
以汽车后桥齿轮为实例,在新制造的箱式多用炉上进行了氮基气氛渗碳淬火工艺的设计、调试和检测。
2.
In this paper carburizing process design and adjusting of nitrogen-based atmosphere were analyzed,discussed and tested on the new made continuous carburizing furnace.
本文对新制造的连续式渗碳炉氮基气氛渗碳工艺的设计与调试进行了分析、讨论和试验,结果表明,采用N2+甲醇制备的氮基气氛与丙烷气作为渗碳富化气进行渗碳,其工艺的设计与调试满足了加工产品的技术要求,因此是合理的,并作为一种安全、可靠和节能的热处理工艺值得推广。
3) nitrogen based atmosphere
氮基气氛
1.
If nitrogen based atmosphere of NH 3,N 2 and CO 2 are adopted ,the process is worthy of spreading for its characteristics such as high permeation speed , carbonitriding layer, flat hardness gradient ,thi.
采用NH3、N2和CO2的氮基气氛,具有渗速快、渗层厚、硬度梯度平缓等特点,且污染少、价格低,值得推广。
2.
The application and constitution of nitrogen based atmosphere nitrocarburizing production line are intorduced.
介绍了氮基气氛在气体软氮化生产线上的应用和生产线的组成及作用。
4) nitriding atmosphere
渗氮气氛
1.
This paper found the calculate method of the critical nitrogen potential profile ,and analyses the effects of temperature、 time 、the content of alloy elements and nitriding atmosphere on the critical nitrogen potential profile.
本文在建立临界氮势曲线计算方法及结果基础上,分析温度、时间、合金元素含量、渗氮气氛对临界氮势曲线的影响,得出结论:调整渗氮温度、渗氮气氛和氨流量,通过气氛氮势的变化,可有效地控制化合物层的形成。
5) nitrided atmosphere
氮化气氛
1.
The structure and property of 40Cr steel ion?nitrided layer in the different nitrided atmosphere were investigated by means of Ion Microprobe,XRD,Microscope Analysis and so on.
结果表明 ,在氨气加钛气氛下进行离子氮化 ,有利于γ′相的形成 ,氮化层硬度高 ,氮化层深 ,这是氮化气氛中活性钛作用的结果 。
6) nitrogen atmosphere
氮气氛
1.
The Reflow Techniques with Nitrogen Atmosphere;
采用氮气氛保护的再流焊接技术
2.
Results indicate that coal pyrolysis in hydrogen atmosphere, companed with in nitrogen atmosphere, the coversion rate, the yield of gases and the quality of tars are enhanced.
常压、温度为600~1200°C条件下,东胜烟煤分别在氢和氮气氛中热解的实验研究表明:煤在氢气氛中热解与在氮气氛相比产气率更高,焦油质量较好,同时获得了较高的煤转化率;热解温度强烈地影响热解产物的组成和煤转化率,随温度的升高煤转化率提高,热解气产率增加,CH4、CO和CO2的产率上升,焦油产率降低,但温度对C+2和H2O的产率影响不大。
3.
Large diameter carbon tubes(LDCTs) with different morphologies were prepared by DC arc discharge under the conditions of mixed catalysts of iron,cobalt and nickel oxides,and nitrogen atmosphere of high temperature.
在高温氮气氛以及铁、钴、镍的氧化物混合催化剂作用下,采用直流电弧放电法制备了具有不同形貌特征的外径超过100 nm的大直径碳管(LDCTs)。
补充资料:DCZc系列氮气纯化设备
技术指标:
纯度≥99.9995%
露点≤-70℃
氧含量≤5ppm
氢含量≤1ppm
特点:
原料气氧含量小于1000ppm时,使用高效脱氧剂除氧,氮气纯度和压力不受氢气影响。
DCZc氮气纯化设备工作原理图
型号规格 | 额定处理气量 | 有效供气量 | 耗氢量 | 装机功率 | 使用功率 | 冷却水 |
Nm3 | Nm3/h | Nm3/h | kw | kw | T/h | |
DCZc-10 | 11 | 10 | 0.028 | 2 | 1.0 | 0.9 |
DCZc-20 | 22 | 20 | 0.06 | 4 | 2.0 | 1.5 |
DCZc-40 | 44 | 40 | 0.11 | 8 | 4.0 | 3.5 |
DCZc-60 | 66 | 60 | 0.17 | 12 | 6.0 | 5.5 |
DCZc-80 | 88 | 80 | 0.22 | 16 | 8.0 | 7.0 |
DCZc-100 | 110 | 100 | 0.28 | 21 | 10.5 | 9.0 |
DCZc-120 | 132 | 120 | 0.33 | 25 | 12.5 | 10.5 |
DCZc-150 | 165 | 150 | 0.40 | 31 | 15.5 | 13.5 |
DCZc-180 | 198 | 180 | 0.50 | 37 | 18.5 | 16.0 |
DCZc-200 | 220 | 200 | 0.55 | 42 | 21.0 | 18.0 |
DCZc-250 | 275 | 250 | 0.69 | 52 | 26.0 | 22.5 |
DCZc-300 | 330 | 300 | 0.83 | 63 | 31.5 | 27.0 |
DCZc-350 | 385 | 350 | 0.96 | 73 | 36.5 | 31.0 |
DCZc-400 | 440 | 400 | 1.10 | 84 | 42.0 | 36.0 |
DCZc-450 | 495 | 450 | 1.25 | 94 | 47.0 | 40.5 |
注:本表所列数据以20℃环境温度,0米标高,80%相对湿度,设备进口氮气纯度为99.5%, 25℃冷却水温度为设计基准。
瑞安市耀星气体净化器材有限公司
地址:浙江省瑞安市塘下镇新陈东路137号
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