Izithasiselo ze-chromium eqinile

Izithasiselo ze-chromium eqinile

CR-2 isithasiselo se-chromium esisebenza kahle kakhulu

1. Izici

Ukusebenza kwamanje kwe-Cathodic kufika kokungu-2. 4 kuya ku-26%, inqubo evamile evamile ye-chrome plating izikhathi ezingu-2-3, ukonga amandla.

     2. Sebenzisa ukuminyana kwamanje ububanzi, 2 0- . 6 0A / d㎡ can, isivinini sokubeka.

     3. Ayikho i-fluoride, akukho ukugqwala endaweni yokuminyana yamanje ephansi ye-substrate, akukho ukugqwala ku-anode.

     4. Ubulukhuni obuncane bokunamathela bungafinyelela ku-1000-1100KHN 100

     5. Isendlalelo sokucwenga siyagqama, sibushelelezi futhi sicolekile, ukujiya okufanayo, nekhono elihle lokucweba elijulile.

     6. Isixazululo se-plating sizinzile, kulula ukusisebenza futhi kulula ukusinakekela.

2. Ukwakheka kwesixazululo nezimo zokusebenza

     Izithako namapharamitharangevelu elingcono kakhulu

     C r O 3220- 2 8 0g/L2 5 0g/L

     H 2 SO 42. 2-2.8 g/L2.5 g/L

     CR-2 i-hard chromium additive1 8 -2 2 ml/L2 0 ml / L

     Isilinganiso se-chromic acid ne-sulfuric acid1 00 :( 0.8-1.2 )100:1

     izinga lokushisa5 0 -60 ℃55 ℃

     Cathode current density2 0- 6 0A/d ㎡50 A/d ㎡

     Voltage15 volts noma ngaphezulu

     Deposition rateUma yamanje ingu-50 A/d ㎡ nezinga lokushisa lingu-55 ℃ , izinga lokubeka licishe libe yi-micron engu-1.0 / min

3.Ukulungiswa kwesixazululo sokucwenga

     1. Hlanza ithange lokucwenga, engeza izingxenye ezimbili kwezintathu zevolumu yamanzi, bese ushisa ku-45 ℃.

     2. Engeza i-chromic anhydride ( 250g/L) bese ugoqoza kahle.

     3. Ukwengezwa kwe-asidi ye-sulfuric emsulwa ngamakhemikhali ( 2. . 5 G / L, qaphela ukuthi okuqukethwe kwe-chromium sulfate anhydride kudonswe kuyo,) bese uxuba.

     4. Engeza u-20 ml/L we-CR-2 hard chromium additive , engeza amanzi kuvolumu edingekayo, bese ushukumisa ngokulinganayo.

     5. Beka i-anode ye-lead-tin equkethe u-7-10 % Sn, sebenzisa i-cathode engamanga enendawo ephindwe kahlanu kune-anode, futhi uyifake ngogesi ku-D k =15A/d ㎡ amahora angu-4 ukuze ukhiqize inani elifanele le-chromium eyi-trivalent.

     6. Shisisa isixazululo se-plating sibe ngu-55 ℃ bese uqala ukwenza i-electroplating.

4.Isixazululo se-Plating yesondlo

     1. Cishe u-10ml we-CR-2 eqinile ye-chromium additive yengezwa kuwo wonke u-1000 AH kagesi , noma amalitha angu-5-7 esithasiselo se-CR-2 ye-chromium eqinile kuwo wonke u-100 kg we-chromic anhydride engeziwe .

     2.H 2 SO . 4 ukugxila okuvamile okungu-2. . 5 G / L. Imvamisa i-sulfuric acid ayisetshenziswa, ngokulahleka kuphela.

     3. Kunconywa ukungeza umkhiqizo wethu i-CR-53 noma i-CR-53A chromium mist inhibitor ukuze unciphise ukuphunyuka kwenkungu ye-chromium futhi ugweme ukungcoliswa komoya kanye nokulahlekelwa izinto zokusetshenziswa zamakhemikhali.