Ubwino ndi Kuipa kwa Trivalent Chromium Plating

Choyamba, kodi Trivalent ndi chiyani?

Ndi azokongoletsera za chrome, zomwe zingapereke kukana zokanda ndi dzimbiri mumitundu yosiyanasiyana yamitundu.Chomera cha chromeimatengedwa ngati njira yothandiza zachilengedwe kuposa chromium ya hexavalent.

Kenako, Tiyeni tione mwatsatanetsatane ndondomekoyi kuti timvetse ubwino wake ndi zovuta zake.

Ubwino:

Ubwino wanjira zitatu za chromiumpanjira ya hexavalent chromium ndizovuta zochepa za chilengedwe chifukwa cha kutsika kwa kawopsedwe ka trivalent chromium, kuchulukirachulukira, komanso kutsika kwamitengo yogwiritsira ntchito.

Munjira ya trivalent chromium, hexavalent chromium ndi choyipitsa chosambira.Chifukwa chake, kusamba kulibe kuchuluka kwa hexavalent chromium.Kuchuluka kwa chromium kwa ma trivalent chromium solutions ndi pafupifupi gawo limodzi mwa magawo asanu a mayankho a hexavalent chromium.

Chifukwa cha chemistry ya trivalent chromium electrolyte, mikangano sichitika panthawi yopukutira monga momwe zimakhalira pakupanga chromium plating.Kugwiritsa ntchito trivalent chromium kumachepetsanso mavuto otaya zinyalala komanso mtengo wake.

Zoyipa:

Kuipa kwa njira ya trivalent chromium ndikuti njirayi imakhudzidwa kwambiri ndi kuipitsidwa kuposa njira ya chromium ya hexavalent, ndipo njira ya trivalent chromium siyingathe kuyika makulidwe amitundu yonse ya mbale zomwe njira ya hexavalent chromium imatha.Chifukwa imakhudzidwa ndi kuipitsidwa, kachitidwe kakang'ono ka chromium kumafuna kutsukidwa kokwanira komanso kuwongolera kolimba kwa labotale kuposa momwe ma hexavalent chromium amachitira.Malo osambira a trivalent chromium amatha makulidwe a mbale kuyambira 0.13 mpaka 25 µm.Sichingagwiritsidwe ntchito pazinthu zambiri zolimba za chromium plating.

Malo osambira ang'onoang'ono a chromium electroplating apangidwa makamaka kuti alowe m'malo osambira a hexavalent chromium plating.Kupanga malo osambira ang'onoang'ono kwakhala kovuta chifukwa trivalent chromium imasungunuka m'madzi kupanga ma ion okhazikika omwe satulutsa chromium mosavuta.Pakali pano, pali mitundu iwiri ya njira za trivalent chromium pamsika: cell single and double cell.Kusiyanitsa kwakukulu kwa njira ziwirizi ndikuti njira yothetsera ma cell awiri imakhala ndi ma chloride ochepa kwambiri, pomwe njira yothetsera selo imodzi imakhala ndi ma chloride ambiri.

Kuphatikiza apo, ma cell awiriwa amagwiritsa ntchito ma lead anode omwe amayikidwa m'mabokosi a anode omwe amakhala ndi sulfuric acid solution ndipo amalumikizidwa ndi nembanemba yodutsa, pomwe cell imodzi imagwiritsa ntchito ma carbon kapena graphite anode omwe amalumikizidwa mwachindunji ndi yankho la plating.Tsatanetsatane wa njirazi sizikupezeka chifukwa mabafa ang'onoang'ono a chromium omwe ali pamsika ndi ake.

Nazi zabwino zazikulu za Trivalent chrome:

· Osamawononga chilengedwe - utsi wapoizoni wocheperako kuposa plating wa hexavalent

· Pang'ono zinyalala sludge

• Kuchepetsa mtengo wothira madzi oipa

· Malamulo ochepera oyesera ndi ndalama zomwe zimayendera

Zoyipa zake ndi izi:

Mtengo wokwera pang'ono pamankhwala & kukonza m'malo mwa plating hexavalent.

· Kuvuta kusankha anode

· Mayankho ophatikizika

· Kuvuta ❖ kuyanika makulidwe kuwonjezeka