ʻO ka hoʻohana ʻana o Sodium Cyanide i ka ʻoihana Electroplating

He hana koʻikoʻi ka electroplating i ka ʻoihana hana, ʻo ia hoʻi ke kau ʻana i kahi papa lahilahi o ka metala ma luna o ka ʻili o kahi ʻāpana hana metala ma o ka electrolysis. ʻAʻole wale kēia hana e hoʻonui i ke kūpaʻa ʻana i ka pala o ka metala akā hoʻomaikaʻi pū i kona ʻano aesthetic a me ka maikaʻi o ka ʻili. ʻO ka sodium cyanide , kahi hui kemika ʻawahia loa akā he versatile, he hana koʻikoʻi ia i ka ʻoihana Electroplating.

Nā Kuleana o ka Electroplating

Hoʻokumu ʻia ka electroplating ma ke kumu o ka electrolysis. Ma kahi hoʻonohonoho electroplating, ʻo ka mea hana metala e hoʻopaʻa ʻia e hana ʻia i ka cathode, aʻo ka metala e waiho ʻia e hoʻohana ʻia e like me ka anode. Hoʻokomo ʻia ka cathode a me ka anode i loko o kahi hopena electrolyte i loaʻa i nā ion metala o ka metala plating. Ke hoʻoili ʻia ke au uila ma ka electrolyte, ua huki ʻia nā ion metala i loko o ka hopena i ka cathode (ka mea hana) a waiho ʻia ma luna o kona ʻili, e hana ana i kahi ʻāpana lahilahi o ka metala plating.

ʻO ke kuleana o Sodium Cyanide i ka Electroplating

Hoʻohana nui ʻia ka sodium cyanide (NaCN) i ka electroplating ma ke ʻano he Complexing Agent . Loaʻa iā ia ka hiki ke hana i nā complexes paʻa me nā ions metala like ʻole. I loko o ke ʻano o ka electroplating, he nui nā pono o kēia mau complexes metala - cyanide:

1. ʻOi aku ka maikaʻi o ka Plating : ʻO nā hui metala-cyanide i hana ʻia e Sodium Cyanide e kōkua i ka hoʻokō ʻana i kahi waiho metala like a laumania ma ka ʻili o ka workpiece. No ka laʻana, i ka electroplating keleawe, hōʻoia ka hui keleawe-cyanide i ka waiho like ʻana o nā ion keleawe, e hopena ana i kahi papa keleawe paʻa a pili. He mea koʻikoʻi kēia no nā noi kahi e pono ai ka pono o ka papa i hoʻopili ʻia, e like me ka ʻoihana uila no nā mea hoʻohui plating.

2. Hoʻomaikaʻi ʻia ka uhi ʻana : ʻO ka hoʻohana ʻana i ka sodium cyanide i loko o ka hopena electrolyte e hoʻomaikaʻi i ka mana hoʻolei o ka ʻauʻau plating. ʻO ka mana hoʻolei e pili ana i ka hiki o ka hopena plating ke waiho i kahi papa like o ka metala ma ka workpiece, ʻoiai ma nā ʻāpana paʻakikī me nā recesses a me nā protrusions. Hiki i nā metala - cyanide complexes ke hiki aku i nā ʻāpana āpau o ka workpiece, e hōʻoiaʻiʻo ana i ka uhi piha. He mea maikaʻi loa kēia i nā ʻoihana e like me ke kaʻa, kahi e pono ai ke uhi ʻia nā ʻāpana me nā geometries paʻakikī no ka pale ʻana i ka corrosion.

3. ʻAuʻau Paʻa Paʻa : Kōkua ka sodium cyanide i ka mālama ʻana i ke kūpaʻa o ka ʻauʻau electroplating. Hoʻomalu ia i ka nui o nā ion metala manuahi i loko o ka hopena, e pale ana i ka hoʻokumu ʻia ʻana o nā waihona metala i hoʻopili maikaʻi ʻole ʻia a i ʻole he maikaʻi ʻole. Ma ka hoʻokumu ʻana i nā paʻakikī paʻa, hiki iā ia ke hana i kahi kaʻina hana electroplating i ʻoi aku ka kaohi a kūlike.

Nā noi kikoʻī o ka Sodium Cyanide i ka Electroplating

1. Ka Hoʻopili Keleawe : I ka electroplating o ke keleawe, hoʻohana ʻia ka Sodium cyanide e hana i nā hui keleawe-cyanide. He mea nui loa kēia i ka wā e kau ai ma luna o nā substrates e like me ka zinc-alloy die-castings. Hoʻohana nui ʻia nā zinc-alloy die-castings i ka hana ʻana i nā mea hoʻonaninani, nā zippers, a me nā ʻāpana mīkini liʻiliʻi. No ka mea he maʻalahi ka zinc-alloy i ka corrosion i nā hopena plating acidic, hoʻohana pinepine ʻia kahi hana plating keleawe-based cyanide ma ke ʻano he ʻanuʻu pre-plating. Mālama ka papa keleawe i waiho ʻia me ka hoʻohana ʻana i ka electrolyte i loaʻa ka cyanide i ka substrate zinc-alloy mai ke kaiapuni acidic o nā kaʻina hana plating ma hope, e like me ka nickel plating, a hoʻomaikaʻi pū i ka hoʻopili ʻana o ka papa nickel.

2. Ka Hoʻopili ʻana i ke Kālā : Hoʻohana ʻia ka sodium cyanide i ka electroplating kālā. Hoʻokumu ʻia nā hui kālā - cyanide i loko o ka electrolyte, kahi e hiki ai ke waiho ʻia ke kālā maʻemaʻe a ʻālohilohi. Hoʻohana pinepine ʻia nā mea i hoʻopili ʻia i ke kālā i ka ʻoihana mea hoʻonani, ka hana ʻana i nā mea ʻaina, a me nā pilina uila. ʻO ka hoʻohana ʻana i ka sodium cyanide i ka electroplating kālā e hōʻoiaʻiʻo i kahi hoʻopau kiʻekiʻe, me ka papa kālā e loaʻa ana ka reflectivity maikaʻi loa a me ke kūpaʻa i ka palaho.

3. ʻO ka Zinc Plating : ʻOiai ua hoʻoikaika ʻia e hoʻomohala i nā kaʻina hana zinc-plating ʻaʻole cyanide, i kekahi mau hihia, hoʻohana mau ʻia ka electroplating zinc e pili ana i ka cyanide. ʻO nā hui zinc-cyanide i hana ʻia me ke kōkua o ka sodium cyanide e hāʻawi i ka mana hoʻolei maikaʻi a ʻae i ka waiho ʻana o kahi papa zinc like. Hoʻohana nui ʻia ka zinc plating no ka pale ʻana i ka pala o nā ʻāpana kila a me ka hao, e like me ke kūkulu ʻana a me nā ʻoihana kaʻa.

Hoʻomaopopo i ka palekana

ʻOiai ka nui o kāna mau pono i ka electroplating, he mea ʻawaʻawa loa ka sodium cyanide. Hoʻokuʻu ia i ke kinoea hydrogen cyanide i ka wā e hoʻopili ai me ka wai a i ʻole ka wai. No laila, pono e hoʻopaʻa ʻia nā hana palekana ma nā keʻena electroplating e hoʻohana ana i ka sodium cyanide:

1. Ka lawelawe pono ʻana a me ka mālama ʻana : Pono e mālama ʻia ka sodium cyanide ma kahi palekana a maikaʻi ka ea, kahi kaʻawale mai nā waikawa a me ka makū. Pono e hoʻomaʻamaʻa ʻia nā limahana e lawelawe ana i ka sodium cyanide i nā kaʻina hana lawelawe kūpono, me ka hoʻohana ʻana i nā lako pale pilikino e like me nā mīkina lima, nā goggles, a me ka pale hanu.

2. Nā Hoʻolālā Pane Pilikia : Pono nā hale hana electroplating i nā hoʻolālā pane pilikia piha i ka hihia o ka ninini ʻia ʻana a i ʻole ka hoʻokuʻu ʻia ʻana o ka sodium cyanide. Pono kēia mau hoʻolālā e komo i nā kaʻina hana no ka hoʻokuʻu ʻana i ka wahi, ka hoʻopau ʻana i ka cyanide, a me ka hāʻawi ʻana i ke kōkua lapaʻau i nā limahana i hoʻopilikia ʻia.

3. Ka Palekana ʻana i ke Kaiapuni : Pono e mālama pono ʻia ka wai ʻino mai nā kaʻina hana electroplating i loaʻa ka sodium cyanide e wehe i ka cyanide ma mua o ka hoʻokuʻu ʻia ʻana i ke kaiapuni. Hiki i nā ʻano hana lapaʻau ke komo pū me ka oxidation kemika, kahi e hoʻololi ai i ka cyanide i nā hui ʻino ʻole.

I ka hopena, he koʻikoʻi ko ka sodium cyanide i ka ʻoihana electroplating, hiki ke hana i nā huahana plated kiʻekiʻe, lōʻihi, a me ka nani. Eia nō naʻe, pono e mālama pono ʻia kona hoʻohana ʻana e hōʻoia i ka palekana o nā limahana a me ka pale o ke kaiapuni. Ke holomua nei ka ʻenehana, ke hoʻoikaika ʻia nei ka hoʻomohala ʻana i nā kaʻina hana ʻona ʻē aʻe no ka electroplating, akā no ka manawa, ʻo ka sodium cyanide ka mea nui i nā noi electroplating.