alkali metal

alkali metal的基本解释

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[化] 碱金属, 碱金属元素

与alkali metal相关的网络例句 [注：此内容来源于网络，仅供参考]

The preventive measures for the harmful defects of alkali metals are as follows: 1, reducing the alkali metals content in the raw materials; 2, increasing the MgO content of the sinter , decreasing the basicity of slag , decreasing the Si content of the pig iron, increasing relative slag volume; 3 , introducing prereduced ore pellets or partly reducted sinter; 4increasing the ability of coke resisting alkali metals; 5, using refractories that have the ability of resisting corrasion of alkali metals; 6 , cleaning the blast furnace periodically. The above recommendations are necessary for decreasing the circulation and accumulation of alkali metals effectively in blast furnace, reducing the harmful influence of alkali metals on blast furnace, increasing the smelting intensity, decreasing the coke rate, improving the gas permeability.

基于碱金属对高炉冶炼的上述危害，本文结合湘钢高炉的实际生产情况，通过理论分析、计算以及其他钢厂防治碱害的经验，提出防治高炉碱害的措施：1、减少入炉原、燃料的碱金属含量；2、提高烧结矿中的MgO含量、降低炉渣碱度、降低生铁含硅量、适当增加渣量；3、采用预还原的金属化球团或部分还原的烧结矿；4、提高焦炭的抗碱能力；5采用抗碱侵蚀的耐火材料；6、周期性性洗炉，以有效地减少碱金属在高炉内的循环富集，降低碱金属对高炉的危害，提高高炉的冶炼强度，降低焦比，改善高炉透气性。

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The invention relates to a method for preventing a top metal layer of packaging chips from fracturing under high temperature, which avoids the fracture of the top metal layer caused by the inter-diffusion of a gold ball, an aluminum welding pad and a top layer metal by introducing a lower metal layer to the joint between the top layer wire and the aluminum welding pad and driving a metal plug to the joint between the top metal layer and the lower metal layer and a metal plug to the joint between the lower metal layer and the aluminum welding pad.

一种防止封装芯片上的顶层金属层在高温下断裂的方法，通过在顶层金属线和铝焊垫之间连接处引入下层金属层，并在顶层金属层和下层金属层之间的连接处以及下层金属层和铝焊垫之间的连接处打金属插塞，避免了因金球、铝焊垫以及顶层金属相互扩散造成的顶层金属层断裂。

与alkali metal相关的网络解释 [注：此内容来源于网络，仅供参考]

alkali metal：碱金属

价电子数等於其族数(Group number),例如IA族碱金属(alkali metal)有一个价电子,而VIIA族卤素(halogen)具有七个价电子. 周期表上同族的元素具有类似的化学性质,即因其拥有相同的价电子. 路以士(G.

alkali metal：硷金属

硷金属 alkali | 硷金属 alkali metal | 硷磷钙锰铁矿 roscherite

alkali metal：碱性金属

alkali liquor 碱液 | alkali metal 碱性金属 | alkali metal grease 碱金属润滑脂

alkali metal：咸金属

alkali halide 卤化咸 | alkali metal 咸金属 | alkali-antimonides 咸金属锑化物

alkali metal ion：碱金属离子

unordered 无序的 | alkali metal ion 碱金属离子 | parent population sampling 总群抽样