磨料磨损

An abrasive system for use in high cleaning, controlled abrasivity dentifrice compositions comprises at least one abrasive silica which may be selected from a first silica having a Radioactive Dental Abrasion in the range 30 to 150 and a second silica an RDA in the range 100 to 300, and a crystalline aluminosilicate having an average crystallite size below 0.2 mu m.

一种用于高度清洁、控制磨损的牙膏组合物的磨料体系，包括可选自放射性牙齿磨损在30-150范围内的第一二氧化硅和RDA在100-300范围内的第二二氧化硅中的至少一种磨料二氧化硅，和平均微晶尺寸低于0.2μm的结晶铝硅酸盐。

Some abrasive would effuse from the abrasive tank after stopping the power in DIAJET.And the abrasive led much abrasion on the elements, especially on the nozzle.

针对前混合磨料射流系统存在的磨料涌出而导致对系统管件，尤其是喷嘴产生磨损的问题，对原有的射流系统进行了分析。

The results of the investigation showed that the best entrance angle of B〓C, B〓C/ C and Al〓O〓/ C ceramic nozzles is 11°, 14°and 16°respectively. Erosion wear model has been put forward. The B〓C and B〓C/ C nozzles exhibited a stress fatigue induced removal process under the condition of umber emery erodent impacting, and a brittle fracture induced removal process under the condition of white emery and SiC erodent impacting.

建立了不同磨损机理下的冲蚀磨损模型，提出了喷砂嘴的磨损属于多冲蚀机理并存的复合冲蚀机制。B〓C和B〓C/C陶瓷喷砂嘴在棕刚玉磨料的冲蚀下，主要表现为应力疲劳断裂冲蚀，在白刚玉和SiC磨料的冲蚀下，主要表现为脆性断裂冲蚀。

N this research, the characteristic of martensitic steel in abrasion was investigated by using three different test methods.

本研究通过3种磨料磨损试验方法，对0。

The results showed that, the unsmoothed surface can change the ploughing to rolling when the surface are worn by abrasive.

在两体静载磨料磨损工况下，仿生非光滑耐磨复合层的耐磨性是45钢的 2 9倍。

The high speed water sand wear test of the brazing coating is also carried out.

涂层的磨料磨损性能也随着Co含量的增加而下降。

In this way,Into the asphalt in the oil is a very clean, and can effectively prevent particles of engine parts caused by abrasive wear.

这样，进入油路中的油就是非常洁净的，可以有效防止颗粒物对发动机件造成的磨料磨损。

To investigate the wear mode of the silicon nitride balls in lapping process, a series of abrasion tests were carried out on a ball-plate wear test apparatus with different loads, abrasive girt diameter, and slurry concentrations.

为掌握不同研磨条件下氮化硅(Si3N4)陶瓷球表面的磨损形式，在球－盘式磨损实验装置上，采用不同载荷及磨料粒度和浓度的碳化硼(B4C)磨料进行了磨损实验。

The experimental results show that the erosion behavior is similar to that of brittle ceramic materials while the maximum erosion is found to occur at a jet angle of 90 degrees. The successive spalling of splats ...

结果表明：Cr3C2 NiCr涂层的冲蚀磨损呈现脆性材料的冲蚀磨损特征，在 90°冲蚀率最大；磨料冲击引起的裂纹沿涂层内粒子界面萌生、扩展并最终导致粒子剥落，是涂层主要的冲蚀磨损机制。

Comparison between the stress of swirling and common jet nozzle tells that the former maximum stress is far larger that the latter. It can explain that the wear of swirling jet nozzle is more severe than common jet nozzle. The way how various parameters effect the wear of the nozzle is carefully studied in the article.

对比了旋转磨料射流喷嘴和普通磨料射流喷嘴的应力情况，结果表明：前者的最大应力远大于后者，这可以很好地解释旋转磨料射流喷嘴比普通射流喷嘴磨损严重的现象。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。