Spalling was a major form of contact fatigue failures in nitriding steel.

To increase production capacity of nitriding ferroalloys, reducing production cost, PSA nitrogen plant is selected.

提高氮化合金的生产能力, 降低生产成本, 采用了PSA制氮系统.

And its result is that through developing the hardness of soft-nitriding products can be remarkably increased.

结果表明通过改进可以显著提高产品软氮化硬度.

So the testing nitriding quality becomes very important.

因而,检验镗轴的氮化质量十分重要.

In this paper, technology of nitriding steel is presented.

简要介绍了离子渗氮技术的最新进展.

There are a lot of methods for measuring nitriding depth, including structural corrosion method.

现有的测量氮化层深度的方法很多, 国内大多数采用组织腐蚀法.

The surface coating of titanium coating coating, coating, nitriding, chromium nitride coating.

本色, 镀钛涂层, 氮化涂层, 氮化铬涂层.

Nitriding cannot be performed during encapsulated or post-HIP pressing due to closing of the pore structure.

氮化无法执行期间,包裹或后髋关节迫切,由于关闭的孔隙结构.

After nitriding, the abradability of the boring axis is increased greatly.

氮化可明显提高镗轴的耐磨性.

By experiment, we knew the nitriding deformation rule of joint bearing and improved the technology method.

通过实验, 掌握关节轴承氮化变形规律,改进了工艺方法,在提高零件精度和质量的同时,降低了生产成本.

The nitrogen fertilizer losses in paddy field involve nitrification-denitrification, ammonia volatilization nitrate leaching and runoff.

稻田中氮素损失途径主要有氨挥发、硝化 - 反硝化 、 淋洗和径流,其中氨挥发是氮素损失的主要途径.

The nitrification of the ammonium ion, however, results in the formation of an acid residue.

但铵离子的硝化会产生一种酸性残留物.

Nitrification is an important step to affect nitrogen removal in biological treatment processes.

生物脱氮系统中,硝化作用好坏是影响脱氮工艺效率的重要步骤.

A good correlation of ammonia removal efficiency, nitrification rate and TN removal efficiency was found.

氨氮去除率和硝化速率、总氮去除率具有较好的相关性.

Urea + nitrification inhibitor DMPP ( Entec 46 ), Urea + nitrification inhibitor DCD ( U + DCD ) and organic-inorganic fertilizer ( OIF ) decreased significantly nitrate content of rape.

尿素+硝化抑制剂DMPP ( Entec46 ) 、 尿素+硝化抑制剂DCD ( U+DCD ) 和有机无机复混肥 ( OIF ) 3种氮肥显著降低了油菜硝酸盐含量.

In sewage containing 30 % seawater, shortcut nitrification can be achieved at moderate temperature.

生活污水中海水比例为30%中温条件下可以实现短程硝化.

Understanding of the manufacture of sulfuric acid in two ways, contact the Law and nitrification.

了解制造硫酸的两种方法, 接触法和硝化法.

Ammonia can be transformed into nitrate that can be utilized by plant via nitrification.

氨经硝化作用转化成可被植物利用硝酸盐.

In addition , the effects of sorption and nitrification on NH 4 + N transformation and tr.

就吸附作用和硝化作用对铵态氮转化迁移规律的影响作了定量讨论.

The influence of nitrification efficiency with adding nitrifying bacteria to the activated sludge process was investigation.

研究了在活性污泥工艺中用投加硝化菌的方法提高硝化效率的特性.

The experiment demonstrated that it is feasible to start ANAMMOX reactor with nitrifying activated sludge.

反应器的成功启动表明,使用硝化细菌接种厌氧氨氧化反应器能实现快速启动.