Itandukaniro muri Galvanizing, Isahani ya Cadmium, Isahani ya Chromium, na Nickel Ihinduranya Icyuma Cyuma Cyuma Cyuma

Ni irihe tandukaniro riri hagati ya plaque ya zinc, isahani ya kadmium, isahani ya chromium, hamwe na nikel isahani y'icyuma naibyuma bar?

1.Galvanizing

Ibiranga: Zinc irahagaze neza mumuyaga wumye kandi ntabwo ihindura ibara byoroshye.Mu kirere no mu kirere cyuzuye, ikorana na ogisijeni cyangwa karuboni ya dioxyde de oxyde cyangwa firime ya karubone ya alkaline zinc, ishobora kubuza zinc gukomeza okiside kandi ikagira uruhare mu kurinda.Zinc ishobora kwibasirwa cyane na ruswa muri acide, alkalis, na sulfide.Imyenda ya galvanised isanzwe ivurwa passivation.Nyuma ya passivation muri acide ya chromic cyangwa chromate yumuti, firime yakozwe ya passivation ntabwo yoroha cyane numwuka mwinshi, byongera cyane ubushobozi bwayo bwo kurwanya ruswa.Kubice byimpeshyi, ibice bikikijwe n'inkuta (uburebure bwurukuta <0.5m), nibice byibyuma bisaba imbaraga za mashini nyinshi, kuvanaho hydrogène bigomba gukorwa, mugihe ibice byumuringa numuringa bidashobora gukuramo hydrogen.Isahani ya Zinc ifite igiciro gito, gutunganya neza, nibisubizo byiza.Ubushobozi busanzwe bwa zinc ni bubi, kuberako isahani ya zinc ari anodic itwikiriye ibyuma byinshi.Gushyira mu bikorwa: Galvanizing ikoreshwa cyane mubihe byikirere nibindi bidukikije byiza.Ariko ntigomba gukoreshwa nkigice cyo guterana amagambo

Isahani ya kadmium

Ibiranga: Kubice bihura nikirere cyamazi cyangwa amazi yinyanja, no mumazi ashyushye hejuru ya 70 ℃, isahani ya kadmium irahagaze neza, ifite imbaraga zo kurwanya ruswa, amavuta meza, kandi igashonga buhoro buhoro muri acide hydrochloric.Nyamara, irashobora gushonga cyane muri acide ya nitric, idashonga muri alkali, na oxyde yayo nayo ntishobora gushonga mumazi.Ipfunyika ya Cadmium yoroshye kuruta zinc, hamwe na hydrogène nkeya kandi ifatanye cyane.Byongeye kandi, mubihe bimwe na bimwe bya electrolysis, cadmium yabonetse ni nziza cyane kuruta zinc.Ariko gaze ikorwa na kadmium mugihe cyo gushonga ni uburozi, kandi umunyu wa kadmium ushonga nawo ni uburozi.Mubihe rusange, kadmium ni catodique itwikiriye ibyuma, hamwe na anodic ikingira mu nyanja nubushyuhe bwo hejuru.Gushyira mu bikorwa: Ikoreshwa cyane cyane mu kurinda ibice kwangirika kwikirere biterwa n’amazi yo mu nyanja cyangwa ibisubizo bisa n’umunyu hamwe n’umwuka w’amazi yo mu nyanja.Ibice byinshi mubyindege, kugendagenda, ninganda za elegitoronike, amasoko, nibice bifatanye byometse kuri kadmium.Irashobora guhanagurwa, fosifati, no gukoreshwa nkibara ryirangi, ariko ntishobora gukoreshwa nkibikoresho byo kumeza.

3.Isahani ya Chrome

Ibiranga: Chromium ihagaze neza cyane mu kirere cyuzuye, alkaline, aside nitric, sulfide, ibisubizo bya karubone, na acide kama, kandi irashobora gushonga byoroshye muri aside hydrochloric na acide sulfurique 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.Ntabwo ihindura ibara munsi ya 480 ℃, itangira okiside hejuru ya 500 ℃, kandi igabanya cyane ubukana kuri 700 ℃.Ikibi cyacyo nuko chromium ikomeye, yoroheje, kandi ikunda gutandukana, ibyo bikaba bigaragara cyane iyo bikorewe imitwaro ihindagurika.Kandi ifite ubwoba.Chromium y'ibyuma byoroshye guhumeka mu kirere kugirango ikore firime ya passivation, bityo ihindure ubushobozi bwa chromium.Kubwibyo, chromium ihinduka catodique itwikiriye icyuma.Gushyira mu bikorwa: Gushira mu buryo butaziguye chromium hejuru yibice byibyuma nkurwego rwo kurwanya ruswa ntabwo ari byiza, kandi muri rusange bigerwaho hifashishijwe amashanyarazi menshi (ni ukuvuga umuringa usa → nikel → chromium) kugirango ugere ku ntego yo gukumira no gushushanya.Kugeza ubu, irakoreshwa cyane mugutezimbere kwambara kw ibice, gusana ibipimo, kwerekana urumuri, no kumurika.

nikel

Ibiranga: Nickel ifite imiti ihamye yimiterere yikirere hamwe nigisubizo cya alkaline, ntabwo ihindura ibara ryoroshye, kandi ihindurwamo okiside gusa mubushyuhe buri hejuru ya 600 ° C. Irashonga buhoro buhoro muri acide sulfurike na aside hydrochloric, ariko irashobora gushonga byoroshye muri acide ya nitricike.Biroroshye kunyura muri acide ya nitricike bityo ikaba ifite imbaraga zo kurwanya ruswa.Nickel coating ifite ubukana bwinshi kandi biroroshye gukoresha.

Gapower MetaIsosiyete izobereye mugutanga chrome isize, galvanised, nikel isize ibyuma hamwe nicyuma kizunguruka.Isosiyete ifite ububiko bwa toni 20000 z'imiyoboro izunguruka.Turashobora gutanga ibisobanuro bitandukanye byumuyoboro wibyuma, utubari tuzengurutse, imiyoboro isukuye, hamwe nu shitingi isennye, harimo ibipimo byabanyamerika, Ubudage, Ubuyapani, nu Burayi.Murakaza neza kubaza.