锌合金压铸件抛光及钝化处理

(,611730):TQ153:B:100024742(2005)05200402011,,,,,,,,,,,,1233.1P(gL-1)3050P(gL-1)5070P(gL-1)35P5070tPmin10153.2P(gL-1)1030P(gL-1)4080P(gL-1)1020P(gL-1)23tPs10303.3P(gL-1)200250P(mLL-1)100120P(mLL-1)2030P2535tPs20303.4P(gL-1)1020P(gL-1)4050P(gL-1)5080P6080tPs10303.5P(gL-1)240260P(gL-1)5070P(gL-1)2030tPs5203.6P(gL-1)150200P(gL-1)48tPs10204,ZnAlMgCuSi,,Zn(NO3)2Mg(NO3)2Cu(NO3)2Fe(NO3)3SiF4Al(BF4)3,HFHNO320mLPm2,,5,04Sep.2005Electroplating&PollutionControlVol.25No.5,,ZnAlMgCuFe,,CrO3,,,,,,,2535,,,,6,,,,,,pH,,Cr(NO3)3,,,,,1,,,:2005204202(12201,213015):TQ153:B:100024742(2005)05200412011,:(1);(2),;(3),;(4),,,,600L,,,2,,,,,,,,,2.1Fe2+Fe3+,pH,pH,OH-Fe2+Fe3+Fe(OH)2,OH-Zn2+Zn(OH)2,2.2,,1420059255(145)