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 。
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。
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。
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。
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。
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。
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。
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。
The Reflow Techniques with Nitrogen Atmosphere;
采用氮气氛保护的再流焊接技术
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。
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)。
Kinetics of Thermal Decomposition of Magnesite in Nitrogen
菱镁矿在氮气气氛中的热分解动力学
Study on Ignition Proof Magnesium Alloys and Its Ignition Proof Principles under Nitrogen Atmosphere;
氮气气氛下阻燃镁合金及其阻燃机理研究
This paper deals with the conception concerning the nitrogen supplying capacity of ammonia atmosphere.
本文提出了关于氨气氛供氮能力的概念。
An Investigation of TiN Coatings Prepared by Electrospark Deposition under Nitrogen Atmosphere;
氮气氛下电火花沉积含TiN表面层的研究
Influence of Reaction Gases on Nitrogen in Coal and Char Release;
反应气氛对煤及其半焦中含氮物释放的影响
Research on Thermo-plasticity Precision Forming Without or Little Oxidation System in Nitrogen-based Atmosphere;
热塑性精成形氮基气氛少无氧化系统的研究
Study on pyrolysis of cassava residues in N_2 atmosphere
在氮气氛围下木薯渣热裂解的试验研究
Crystallization of Amorphous SiCN Ceramic Annealed in Vacuum
真空气氛下非晶硅碳氮(SiCN)陶瓷的高温晶化行为
Effect of Forming Gas on Properties of SrBi_2Ta_2O_9 Ferroelectric Thin Film and Powder
氮氢混合气氛对SrBi_2Ta_2O_9铁电薄膜和粉末性能的影响
Releasing Characteristics of the Fuel Nitrogen from the Pulverized Coal Combusting Under Different Atmosphere
反应气氛对燃料氮析出规律的影响研究
Including cutting in special gas, nitrogen blown cutting, dry static cooling.
在氮气氛围中进行干切削(氮加工)干式静电冷却技术。
a convivial evening, atmosphere
欢乐的夜晚、 气氛.
The atmosphere is strained and quiet, the air stale.
气氛紧张宁静，空气混浊。
furnace atmosphere
炉内气氛;炉气;炉膛内空气状态;窑炉气氛
A splendid atmosphere or aura, as of glamour, that surrounds a person or thing.
气氛，光彩围绕人或东西的气氛或氛围，如魅力
Study on Mechano-Chemical Effect of Aluminum Oxide and Aluminum at the Nitrogen Atmosphere;
氮气氛条件下氧化铝及铝的机械力化学效应研究
The Study on Transfer Behaviors of Sulfur and Nitrogen of Coal in Heat Field in O_2/CO_2 Atmosphere;
O_2/CO_2气氛下燃煤中硫与氮在热场中转化行为的研究
Smelting of high nitrogen martensitic stainless steels by vacuum induction furnace under near normal protective atmosphere
真空感应炉近常压气氛保护熔炼高氮马氏体不锈钢