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鋁合金成分對(duì)硬質(zhì)陽(yáng)極氧化膜的質(zhì)量有何影響?

日期:2024-10-11 23:47
瀏覽次數(shù):2247
摘要:
鋁合金成分對(duì)硬質(zhì)陽(yáng)極氧化膜的質(zhì)量有何影響?

在硬質(zhì)陽(yáng)極氧化過(guò)程中,當(dāng)鋁合金中有害成分濃度超過(guò)允許值時(shí),對(duì)氧化膜的均勻性和完整性都會(huì)有一定的影響。尤其是鋁一銅合


金、鋁一硅合金,硬質(zhì)陽(yáng)極氧化困難較大,質(zhì)量較難保證。當(dāng)鋁-銅合金中銅含量大于5%,鋁一硅合金中硅含量大于7.3%時(shí),不適


宜用直流電進(jìn)行硬質(zhì)陽(yáng)極氧化,而需采用直流電和交流電疊加方法進(jìn)行氧化處理。
                                                                                                                                                                                                        
                                                                                                                                                                              
                                                                                                                                                                                   
                                                                                                                                                                                  
                                                                                                                                                                              
                                                                                                                                                                       
                                                                                                                                                                           
                                                                                                                                                                              

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