The wetting behavior between liquid aluminium and substrates made from industrial Al2O3 and SiC based ceramic foam filters （CFF） was investigated. The same CFF filters were also tested in plant scale filtration expe...The wetting behavior between liquid aluminium and substrates made from industrial Al2O3 and SiC based ceramic foam filters （CFF） was investigated. The same CFF filters were also tested in plant scale filtration experiments. The wetting experiment results show that the SiC based filter material is better wetted by liquid aluminium than the Al2O3 based filter material. This indicates that the improved wetting of aluminium on a filter material is an advantage for molten metal to infiltrate the filter during priming. Also, better wetting of Al-filter might increase the removal efficiency of inclusions during filtration due to better contact between filter and metal. Non-wetted inclusions are easier to be removed.展开更多
对生产的96 t 30Cr1Mo1V高中压转子进行超声检测时,发现水口端缺陷。对该缺陷部位解剖后,采用扫描电镜能谱分析手段,确定了该缺陷主要是由钙铝酸盐类夹杂(以Al2O3为主)造成。对夹杂物的来源进行分析,确定了钢水不纯净的主要原因,为后续...对生产的96 t 30Cr1Mo1V高中压转子进行超声检测时,发现水口端缺陷。对该缺陷部位解剖后,采用扫描电镜能谱分析手段,确定了该缺陷主要是由钙铝酸盐类夹杂(以Al2O3为主)造成。对夹杂物的来源进行分析,确定了钢水不纯净的主要原因,为后续同类型钢锭的冶炼工艺改进及过程质量控制提供依据。展开更多
基金the Research Council of Norway (RCN) funded BIP Project No. 179947/I40 and BIA Project No. 219940/O30the partners: Alcoa Norway ANS, SAPA Heat Transfer AB, Hydro Aluminium AS, SINTEF MK Trondheim, and NTNUFunding by the industrial partners and RCN
文摘The wetting behavior between liquid aluminium and substrates made from industrial Al2O3 and SiC based ceramic foam filters （CFF） was investigated. The same CFF filters were also tested in plant scale filtration experiments. The wetting experiment results show that the SiC based filter material is better wetted by liquid aluminium than the Al2O3 based filter material. This indicates that the improved wetting of aluminium on a filter material is an advantage for molten metal to infiltrate the filter during priming. Also, better wetting of Al-filter might increase the removal efficiency of inclusions during filtration due to better contact between filter and metal. Non-wetted inclusions are easier to be removed.
