查询词典 brass

The results show that the main cause of the original corrosion leakage of H68A condenser brass copper tubes is dezincification and.

结果表明，造成H 68A凝汽器黄铜管腐蚀泄漏的主要原因是脱锌腐蚀。

Valves shall be manufactured from dezincification resistant brass or bronze rated 240 psi at 250 F.

阀门材质应该是抗失锌现象的黄铜或青铜，压力－温度等级为121℃，240psi。

The effect of cold-deformation amount and annealing temperature on the dezincification of the unleaded free-cutting brass were investigated.

采用脱锌腐蚀深度测量方法，光学显微镜分析和SEM等分析方法，研究了不同的冷变形量和退火温度对无铅易切削铋黄铜的耐脱锌腐蚀性能的影响。

" High Copper, Low Zinc Brass Castings for Dezincification Resistance"

锌含量低的高纯度的铜铸件，有效防止锌泄漏

The tube alloy contains 85% copper which means that the alloy is less sensitive to stress corrosion cracking and dezincification than conventional brass alloys.

管子合金含有85%的铜，意味着合金的抗应力腐蚀裂缝和脱锌比传统的黄铜合金更强。

To begin with the phenomenon and characteristics of dezincification of brass, the review is made on the mechanisms, prevention and influence factors of dezincification .

从黄铜脱锌的现象、特征及其影响因素出发，对黄铜脱锌的优先溶解机制、溶解－再沉积机制、双空位机制和渗流机制等进行了描述。

The paper presents some results obtained from a research about effects of rare-earthand boronrefining on the microstructure and dezincification corrosion properties of casting lead brass.

研究了加入稀土和硼细化处理对铸造铅黄铜组织和脱锌腐蚀性能的影响。

Dezincification of duplex brass , which is a form of corrosion. may occur when in contact with cart ain aggressive waters.

两相黄铜脱锌现象，是一种腐蚀，当接触到某些侵蚀性水时可能发生。

The brass welded joint with α+β phase was subject to corrosion in seawater as a result of dezincification.

1引言海水系统是船舶、海上油气田、海滨电厂和近海工厂常用的冷却系统。

In this paper, the dezincification corrosion resistance of Mg-Sb brass was investigated by the methods of dezincification corrosion depth testing, optical microscope, SEM and XRD.

采用脱锌腐蚀深度测量方法、光学显微镜、SEM和XRD等分析方法，研究了镁锑黄铜的脱锌腐蚀性能和添加少量Sn、Al元素对其耐腐蚀性能的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。