1) high nitrogen
高氮
1.
Development of High Nitrogen Austenite Stainless Steel 1Mn15Cr17Ni2N;
1Mn15Cr17Ni2N高氮奥氏体不锈钢的研制
2.
Preparation of nearly spherical nickel-free high nitrogen austenitic stainless steel powders by mechanical alloying;
机械合金化制备近球形无镍高氮奥氏体不锈钢粉末的研究
3.
Effects of ascorbic acid on the heat tolerance of Festuca arundinacea under high nitrogen levels;
抗坏血酸对高氮条件下高羊茅草坪草耐热性的影响
2) high N & K
高氮高钾
1.
The manufacture of high N & K by melted urea spray granulation are presented in process,equipment and specification,especially against 2 specialty fertilizers(vegetable 20-7-18 and fruit trees 18-7-20),and the possible problems as well as their counter measures are summarized such as nutrient fluctuation,low granulation rate,powder material into products,scaling of product.
介绍尿素熔融喷浆造粒法生产高氮高钾三元复混肥的工艺、设备和配方设计,针对蔬菜型复混肥(20-7-18)、果树型复混肥(18-7-20)两种配方,讨论了生产过程的操作特点和控制要点。
3) high concentration nitrogen and ammonia
高氮高浓度
4) high nitrogen steel
高氮钢
1.
Laser welding of high nitrogen steel 1Cr22Mn16N Ⅰ. Influence of shielding gas composition and heat input on N-content and porosity of weld metal;
1Cr22Mn16N高氮钢激光焊接 I.焊接保护气体组成和热输入对焊缝氮含量及气孔性的影响
2.
Laser welding of high nitrogen steel 1Cr22Mn16N—Ⅱ.microstructure and mechanical properties of weld metal;
1Cr22Mn16N高氮钢激光焊接 II.焊缝组织与性能
3.
Laser welding of high nitrogen steel 1Cr22Mn16N Ⅲ.Microstructure and mechanical properties of welding heat-affected zone;
1Cr22Mn16N高氮钢的激光焊接Ⅲ.焊接热影响区组织和性能
6) high nitrogen steels
高氮钢
1.
Experimental melting and production technology of high nitrogen steels;
高氮钢的熔炼及试生产技术
2.
The updated studies on the structures,progresses on the equilibrium phase diagrams of high nitrogen steels and their application in the designing of high nitrogen steels were introduced.
介绍了高氮钢结构特点的最新研究,高氮钢平衡相图的进展及其在高氮钢成分设计方面的应用;概括了氮在钢液中的溶解度公式和高氮钢熔炼过程中的关键问题;分析了氮在奥氏体钢、铁素体钢和双相不锈钢中的作用,即氮在不牺牲强度的同时不仅提高了钢的韧性,且改善了钢的抗腐蚀性能;并列举了一些典型的高氮钢的用途。
3.
A great attention has been paid to the high nitrogen steels(HNS),especially high nitrogen stainless steels in the world,because of their excellent properties and wide prospective applications in the future.
高氮钢,尤其是高氮不锈钢,由于其优异的性能和诱人的应用前景受到国内外钢铁材料界的广泛关注。
补充资料:高纯氮
分子式: N2
CAS号:
性质:纯度大于99.999%。无色无臭无味无毒的惰性气体。相对密度ds(21.1℃,空气=1)0.967。气体密度1.153kg/m3(21.1℃,101.3kPa);液体密度808.5kg/m3(-195.8℃,101.3kPa)。沸点-195.8℃。熔点-209.9℃。氮气纯化方法主要有吸附法、变压吸附法、膜分离法等。在集成电路、半导体和电真空器件制造中用作保护气和运载气,化学气相淀积时的载气,液体扩散源的携带气,在高温扩散炉中用作器件的保护气。高纯氮在外延、光刻、清洗和蒸发等工序中,作为置换、干燥、贮存和输送用气体。显像管制造中要求氮气纯度为99.99%以上。在航天技术中,液氢加注系统必须先用高纯氮置换,再用高纯氦置换。
CAS号:
性质:纯度大于99.999%。无色无臭无味无毒的惰性气体。相对密度ds(21.1℃,空气=1)0.967。气体密度1.153kg/m3(21.1℃,101.3kPa);液体密度808.5kg/m3(-195.8℃,101.3kPa)。沸点-195.8℃。熔点-209.9℃。氮气纯化方法主要有吸附法、变压吸附法、膜分离法等。在集成电路、半导体和电真空器件制造中用作保护气和运载气,化学气相淀积时的载气,液体扩散源的携带气,在高温扩散炉中用作器件的保护气。高纯氮在外延、光刻、清洗和蒸发等工序中,作为置换、干燥、贮存和输送用气体。显像管制造中要求氮气纯度为99.99%以上。在航天技术中,液氢加注系统必须先用高纯氮置换,再用高纯氦置换。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条