從(cong)(cong)微(wei)弧(hu)氧(yang)化電(dian)源(yuan)技(ji)(ji)術(shu)(shu)要(yao)求(qiu)來看，要(yao)實現脈(mo)沖(chong)電(dian)源(yuan)波形變(bian)換(huan)多(duo)、參數(shu)調(diao)節范圍(wei)寬，必(bi)定(ding)使電(dian)路(lu)復雜(za)化、造(zao)價提高(gao)、可(ke)(ke)靠(kao)性降低(di)。所以適(shi)用(yong)、可(ke)(ke)靠(kao)_且(qie)經濟性的(de)電(dian)源(yuan)結(jie)構是設(she)計方案的(de)基本(ben)出發(fa)點(dian)。現在(zai)國內的(de)大部分脈(mo)沖(chong)電(dian)源(yuan)都是采(cai)用(yong)兩(liang)個相互獨立的(de)電(dian)源(yuan)進行疊(die)加而組成的(de)，在(zai)兩(liang)個電(dian)源(yuan)之間(jian)加上切換(huan)裝置(zhi)、控(kong)制(zhi)(zhi)正負脈(mo)沖(chong)電(dian)流的(de)截止和(he)導通。但是，這樣不但使電(dian)源(yuan)結(jie)構復雜(za)化，同時也增加了(le)控(kong)制(zhi)(zhi)電(dian)路(lu)的(de)負擔，鎂(mei)合金(jin)微(wei)弧(hu)氧(yang)化加工，使電(dian)源(yuan)成本(ben)增加。 在(zai)考慮簡化電(dian)源(yuan)結(jie)構的(de)基礎上，采(cai)用(yong)復合功(gong)率轉換(huan)電(dian)路(lu)的(de)形式，鎂(mei)合金(jin)微(wei)弧(hu)氧(yang)化技(ji)(ji)術(shu)(shu)，即(ji)由前級向后(hou)級供電(dian)，由后(hou)級控(kong)制(zhi)(zhi)電(dian)流的(de)設(she)計方案。電(dian)源(yuan)通過設(she)定(ding)不同的(de)占(zhan)空比(bi)進行直流調(diao)壓，從(cong)(cong)而得(de)到預定(ding)的(de)輸出電(dian)壓，然后(hou)，利用(yong)逆變(bian)電(dian)路(lu)實現波形控(kong)制(zhi)(zhi)。

鋁(lv)、鎂(mei)、鐵等(deng)輕金屬(shu)進(jin)(jin)行微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)處理，需要進(jin)(jin)行預處理，是(shi)(shi)因為長期露(lu)在(zai)空(kong)氣中表(biao)面易發(fa)生氧化(hua)(hua)，容易形(xing)成一層(ceng)鈍化(hua)(hua)膜(mo)，同時，鋁(lv)、鎂(mei)、鈦等(deng)輕金屬(shu)容易吸附一些雜(za)志，為保(bao)證(zheng)微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)后制(zhi)得(de)陶瓷膜(mo)的(de)綜合力學性能，微(wei)(wei)弧(hu)(hu)氧化(hua)(hua) 鎂(mei)合金加工，所以給鋁(lv)、鎂(mei)、鈦等(deng)輕金屬(shu)進(jin)(jin)行微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)前進(jin)(jin)行預處理是(shi)(shi)很有必要的(de)，是(shi)(shi)為了保(bao)證(zheng)微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)的(de)效果。微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)電源、微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)生產線、微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)技(ji)術(shu)(shu)、微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)設(she)備、微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)技(ji)術(shu)(shu)原(yuan)理、微(wei)(wei)弧(hu)(hu)氧化(hua)(hua)工藝

微弧氧化的原理

微(wei)(wei)(wei)弧(hu)氧(yang)(yang)化(hua)(hua)(hua)或(huo)等(deng)離子體電(dian)(dian)(dian)解(jie)氧(yang)(yang)化(hua)(hua)(hua)表(biao)(biao)(biao)(biao)面(mian)陶(tao)瓷化(hua)(hua)(hua)技術(shu)，是(shi)指在(zai)普通陽極氧(yang)(yang)化(hua)(hua)(hua)的(de)基(ji)礎上(shang)，微(wei)(wei)(wei)弧(hu)氧(yang)(yang)化(hua)(hua)(hua)技術(shu) 利用(yong)弧(hu)光放電(dian)(dian)(dian)增(zeng)強(qiang)(qiang)并ji活在(zai)陽極上(shang)發生的(de)反應，從而(er)在(zai)以鋁、鈦、鎂等(deng)金屬及(ji)其合金為材料的(de)工(gong)(gong)件(jian)表(biao)(biao)(biao)(biao)面(mian)形(xing)成的(de)強(qiang)(qiang)化(hua)(hua)(hua)陶(tao)瓷膜的(de)方法，微(wei)(wei)(wei)弧(hu)氧(yang)(yang)化(hua)(hua)(hua)電(dian)(dian)(dian)源是(shi)通過用(yong)的(de)微(wei)(wei)(wei)弧(hu)氧(yang)(yang)化(hua)(hua)(hua)電(dian)(dian)(dian)源在(zai)工(gong)(gong)件(jian)上(shang)施加電(dian)(dian)(dian)壓，鎂合金微(wei)(wei)(wei)弧(hu)氧(yang)(yang)化(hua)(hua)(hua)，微(wei)(wei)(wei)弧(hu)氧(yang)(yang)化(hua)(hua)(hua)使工(gong)(gong)件(jian)表(biao)(biao)(biao)(biao)面(mian)的(de)金屬與(yu)電(dian)(dian)(dian)解(jie)質溶液相互作(zuo)用(yong)，在(zai)工(gong)(gong)件(jian)表(biao)(biao)(biao)(biao)面(mian)形(xing)成微(wei)(wei)(wei)弧(hu)放電(dian)(dian)(dian)，在(zai)高溫、電(dian)(dian)(dian)場等(deng)因素的(de)作(zuo)用(yong)下(xia)，金屬表(biao)(biao)(biao)(biao)面(mian)形(xing)成陶(tao)瓷膜，達(da)到工(gong)(gong)件(jian)表(biao)(biao)(biao)(biao)面(mian)強(qiang)(qiang)化(hua)(hua)(hua)的(de)目的(de)。