Impamvu valve ifite isahani ya Galvanised, isahani ya Cadmium, isahani ya Chrome, isahani ya Nickel

Amashanyarazi

Zinc ihagaze neza mumuyaga wumye kandi ntabwo byoroshye guhindura ibara.Mu mazi no mu kirere cyuzuye, ikorana na ogisijeni cyangwa karuboni ya karubone ikora firime ya okiside cyangwa alkaline zinc karubone, ishobora kubuza zinc gukomeza kuba okiside kandi ikagira uruhare mu kurinda.

Zinc irashobora kwangirika cyane muri acide, alkalis na sulfide.Igice cya galvanised muri rusange ni passivat.Nyuma ya passivation muri acide chromic cyangwa chromate yumuti, firime yakozwe ya passivation ntabwo yoroshye gukorana numuyaga mwinshi, kandi ubushobozi bwo kurwanya ruswa bwongerewe cyane.Kubice byimpeshyi, ibice bikikijwe cyane (uburebure bwurukuta <0.5m) nibice byibyuma bisaba imbaraga za mashini nyinshi, kuvanaho hydrogène bigomba gukorwa, kandi ibice byumuringa numuringa ntibishobora gukurwaho hydrogen.

Ubushobozi busanzwe bwa zinc burasa nkaho ari bubi, bityo igipande cya zinc nikintu kidasanzwe kuri anodic.

Gushyira mu bikorwa: Bituma galvanizing ikoreshwa muburyo bwikirere hamwe nibindi bidukikije byiza.Ariko ntabwo ari ibice byo guterana amagambo.

Isahani ya kadmium

Ibice bihura nikirere cyo mu nyanja cyangwa amazi yinyanja no mumazi ashyushye hejuru ya 70 ℃, igifuniko cya kadmium kirahagaze neza, gifite imbaraga zo kurwanya ruswa, amavuta meza, gishonga buhoro buhoro muri acide hydrochloric, ariko biroroshye cyane gushonga muri acide ya nitric., idashonga muri alkali, na okiside zayo ntizishonga mumazi.

Igikoresho cya kadmium cyoroshye kuruta icyuma cya zinc, kwinjiza hydrogène ya coater ni ntoya, kandi gufatira hamwe birakomeye, kandi mubihe bimwe na bimwe bya electrolytike, ibishishwa bya kadmium byabonetse ni byiza kuruta gutwikira zinc.Ariko gaze ikorwa iyo kadmium yashonga ni uburozi, kandi umunyu wa kadmium ushonga nawo ni uburozi.Mubihe bisanzwe, kadmium ni catodique itwikiriye ibyuma hamwe na anodic itwikiriye mumazi nubushyuhe bwo hejuru.

Gushyira mu bikorwa: Ikoreshwa cyane cyane kurinda ibice kwangirika kwikirere cyamazi yinyanja cyangwa ibisubizo byumunyu hamwe numwuka wamazi winyanja.Ibice byinshi byindege, inyanja nu bikoresho bya elegitoronike, amasoko, nibice bifatanye hamwe na kadmium.Irashobora guhanagurwa, fosifatiya no gukoreshwa nka primer irangi, ariko ntishobora gukoreshwa nkibikoresho byo kumeza.

Ububiko bwa Chrome

Chromium ihagaze neza cyane mu kirere cyuzuye, alkali, aside nitric, sulfide, ibisubizo bya karubone na acide kama, kandi irashobora gushonga byoroshye muri acide hydrochloric na acide sulfurike ishyushye.

Mubikorwa byumuyaga utaziguye, niba chromium layer ikoreshwa nka anode, irashobora gushonga byoroshye mumuti wa caustic soda.

Igice cya chromium gifite imbaraga zikomeye, gukomera cyane, 800 ~ 1000V, kwihanganira kwambara neza, kwerekana urumuri rukomeye, no kurwanya ubushyuhe bwinshi.Yagabanutse cyane.Ikibi cya chromium ni uko bigoye, byoroshye kandi byoroshye kugwa, ibyo bikaba bigaragara cyane iyo bikorewe guhinduranya imitwaro.

Igihe kimwe, Chrome irahari.Chromium y'ibyuma byoroshye kunyura mu kirere kugirango ikore firime ya passivation, bityo ihindure ubushobozi bwa chromium.Chromium ku cyuma rero ihinduka catodiki.

Gushyira mu bikorwa: Ntabwo ari byiza guhita ushyira chrome hejuru yicyuma nkibice birwanya ruswa.Mubisanzwe, amashanyarazi menshi (nukuvuga isahani y'umuringa → nikel → chromium) irashobora kugera ku ntego yo gukumira ingese.Kugeza ubu, ikoreshwa cyane mu kunoza imyambarire y’ibice, gusana ibipimo, kwerekana urumuri n’amatara meza.

Isahani ya Nickel

Nickel ifite imiti ihamye yimiterere yikirere na lye, ntabwo byoroshye guhindura ibara, kandi iba oxyde gusa mugihe ubushyuhe buri hejuru ya 600 ° C.Irashonga buhoro muri acide sulfurike na aside hydrochloric, ariko irashobora gushonga byoroshye muri acide ya nitric.Biroroshye kunyunyuza aside nitricike yibanze bityo ikagira ruswa nziza.

Isahani ya Nickel iragoye, yoroshye kuyisiga, ifite urumuri rwinshi kandi ikongeramo ubwiza.Ingaruka zayo nubushake bwayo, kugirango tuneshe iyi mbogamizi, ibyuma byinshi birashobora gukoreshwa, kandi nikel nigice cyo hagati.Nickel ni catodiki itwikiriye ibyuma hamwe na anodic ikingira umuringa.

Gushyira mu bikorwa: Mubisanzwe bikoreshwa mukurinda ruswa no kongera ubwiza, kubwibyo bikoreshwa muburyo bwo kurinda ibishushanyo mbonera.Isahani ya Nickel ku bicuruzwa bikozwe mu muringa nibyiza mu kurwanya ruswa, ariko kubera ko nikel ihenze cyane, umuringa-amabati ukoreshwa akenshi aho gukoresha nikel.