Study of Gallium Plating of Metal Electrodes

Conditions of gallium plating of metal electrodes were studied in the paper. It was found that stability of gallium cover depends on the material and is increasing in the raw: stainless steel 08Х18Н12Т < Steel 1, Steel 2, Steel 3, Steel 45 < Ni < Cd < Cu. Phase composition of the electrode surface layer obtained after gallium plating was studied. It was found that gallium with nickel form Ga36Ni64(Ga Ni2) compound and gallium with copper form CuGa2compound. Different acids were used for electrode leaching: H2SO4;HNO3;H3PO4;HCI. It was shown that only hydrochloric acid is suit-able for gallium plating of the electrodes.

华龙一号核电波动管电渣锭冶炼技术研究

采用VOD法能精确控制华龙一号(HPR1000)核电波动管用材料(X2CrNiMo 18-12(CN))中的氮含量,在敞口电渣炉中生产控氮奥氏体不锈钢电渣锭,氮的波动量可以实现控制。采用电渣生产的钢锭,其锻造性能优越,锻造质量良好。