Hot-dip galvanizing. Inkqubo galvanizing iimveliso metal

Kwishishini lokwakha kunye noshishino nohlobo utshintsho ngezinto metal ukuya iiplastiki amandla aphezulu kunye zisasilela eliphezulu. Oku kungenxa yokuba ababambeleyo zokwenziwa omalunga kwiimpawu ze ziintsimbi, kodwa ukhululekile kuneengxaki otyhidiweyo, enye yazo umhlwa. Ngelo xesha, uyalahlwa ngokupheleleyo izinto yemveli azifumaneki kuzo zonke iindawo, ngokunjalo ugcine ukufaneleka kunye indlela ukuphelisa iinkqubo irusi. Enye yezona ndlela uthandwayo olu hlobo a galvanizing eshushu-phindiweyo, owenza phezu komhlaba imveliso ixesha elide yaye ekhuselekileyo umaleko olukhuselayo.

umgaqo wokhuseleko kwalenza

Emva edlula uthotho yeenkqubo zokuzilungiselela okanye uyilo imveliso zixhomekeke ukutshiza zinc otyhidiweyo. Oku kudla kwenziwa nkxu le preform ngendlela oluludaka yokuba zonke pores bazaliswa isakhiwo sentsimbi. Kukho ezinye bokuqonda ukuba kufuneka ingqalelo phambi kokuba enze galvanizing eshushu-phindiweyo. Ithekhnoloji icebisa ukuba phezulu zinc anode ngokubhekiselele metal liya kukhuthaza self zinc ungekafiki owama kungena ententeni izinto sele kwinkqubo imveliso. Gcwalisa iindawo uncoated Umyinge umlinganiselo mm 2 ngonyaka ngamnye.

Noko ke, iindawo kumsonto kunye namandongomane inokuba ngumthombo ngakumbi nokumelana. iinkqubo ezinjalo ingathintelwa ngokusebenzisa ukusetyenziswa lokuqala iimveliso yentsimbi zokuzikhusela umhlwa. Oku kubaluleke ngokukhethekileyo ukuqwalasela ukuba eshushu-phindiweyo alandelayo iqaqanjiswa izakhiwo intsimbi, iibholiti, eziqulathe umthwalo omkhulu amandla.

Ukulungiselela utyando

Ekulungiseleleni inqanaba isitshixo komhlaba Iimveliso zokucoca kunye nokuqinisekisa ukufana obunokubakho ukusabela kwi izinc nentsimbi emanzini kwisingxobo izinto esebenzayo. Oku kuphunyezwa ngokusebenzisa amanyathelo inkqubo eziliqela kuquka bamafutha kunye ngamanzi. Xa olunye elandelayo imisebenzi ngasekhohlo kunye fluxing. Bamafutha kuyehla ukususa ukungcola oyile - impumelelo yale zinc sokungena kwi isakhiwo sentsimbi iza kuxhomekeka.

Ngokuqhelekileyo, lo msebenzi wenziwa wezenzi bamafutha lokufumana esemgangathweni ashushu-dip kwalenza. enza ngamanzi emva iteknoloji bamafutha iyaphunyezwa. Kweli nqanaba kubalulekile ukuba kususwe zonke ngokugqithiseleyo, ezo zasetyenziselwa kulahlwe lwamafutha imiphezulu imikhondo. Xa amagwebu ethile liyasuswa izisombululo kunye nezinto ezinyibilikayo chemistry.

Nosipho lo workpiece

Le nkqubo kwakhona ingabalelwa izigaba wokucoca wobuso metal. Kodwa ukuba kwezi meko ezidlulileyo, impahla elahliweyo yokuhlasela ubumdaka neoli, kodwa ke kuya kufuneka eli xesha lokujongana yesikali ezikhandelwa ngexesha unyango ubushushu. Kwinkqubo ngasekhohlo usebenzisa zehydrochloric acid, isenzo imichiza evumela ukuba ukufumana komhlaba ecocekileyo nje kuphela kodwa obukhanyayo. Phantse wonke dip ashushu galvanizing isityalo iphuhlisa iiresiphi engaqhelekanga iziselo asebenzayo, ezingabandakanya ezahlukeneyo obalulekileyo ukufakwa inhibitors ukuphelisa oxides kunye hydroxyls. Ukuthotyelwa enkulu ngqo eyimfuneko ngenxa yokuba ukongeza kwisikali loo izisombululo nazo kuchaphazela isakhiwo zeenqwelwana. Ngoko ke ubuchule sifuna ukuthintela ngokugqithiseleyo inyathelo imichiza intsimbi, yehayidrojini ukunqanda iingozi kufumaneka bantu.

fluxing

Xa inkqubo fluxing lwenziwa imisebenzi emininzi. OyiNtloko phakathi kwabo ekugqityweni metal kumphezulu ngeenkqubo ezisisiseko galvanizing. Ingakumbi ukuchithwa kwenzeka oxides aokusetyenziswa alungiswa ngexesha ukuhlanjwa. Ngaphezu koko, izinto fluxing inika ukhuseleko ngenxa iifilimu passivated. Olu daka thile uqala ekudaleni sikhokelo yokhuselo, apho kamva qhubeka eshushu galvanizing metal, kwaye ingakumbi lwesakhiwo yayo yangaphakathi. Kodwa ukuba zinc iza kukhusela izinto kwiimpembelelo angaphandle ngexesha ukusetyenziswa, umaleko passivation luthintela igcwala of yinxalenye galvanizing, kwaye ngexesha elinye kwandisa wettability kunobukhulu otyhidiweyo.

isigaba galvanizing

Kweli nqanaba, imveliso sokuhlambela emanzini apho zinc otyhidiweyo. Iinkqubo ukuba lwenziweyo kweli nqanaba, ziza kuboniswa ukutshatyalaliswa ekubhobhozeni kunye indlela izakhiwo iintsimbi ezimbini. Ubude emanzini kuxhomekeke kubungakanani isakhiwo. Oku kuthabatha imizuzu emi-5 ukuya kweli-10. Kakhulu kubaluleke ngakumbi kukuba ukumisela isantya ngokupheleleyo emanzini nezokukhupha le preform. Umzekelo, dip ashushu galvanizing kwi ngesantya kuditshwa olucothayo kukhuthaza ukukhululwa ngentsimbi ukusuka ukutyabeka isicelo ngaphambili passivated.

Kwelinye icala, a uqina eliphezulu kukhokelela ukufaka iityuwa eyintsalela phezu komhlaba, nto leyo ekugqibeleni lihlisa umgangatho isiphumo. Izinga eliphezulu ikhethiwe ngokusekelwe kubukhulu into, ubude ukuntywiliselwa kunye neempawu kumphezulu.

nolawulo lomgangatho eshushu-dip galvanizing

Ngokusisiseko, umgangatho imveliso onesiphumo ligwetywa iimpawu ezimbini: amandla nokwaleka ubukhulu. Ukuqikelela ezi iingcali parameters benza uhlalutyo lonxibelelwano yangaphakathi kwaye weldments ukuba basesichengeni kakhulu ukusuka izahlulo ngokwembono zobugcisa. Njengoko zokutshekisha Ebubanzini apha kufuneka isekelwe kwiimfuno ezenziwa GOST. Hot-dip galvanizing nangokungqinelana nemigaqo kufuneka zenziwe ukuze Ebubanzini kwiindawo ezikude ukusuka qikeka, i-engile womsonto 5 mm, ingqinelane. amaxabiso ekhethekileyo parameters umaleko azimisele isekelwe kwiimfuno ukuba imveliso ethile, kodwa indlela ukutshekisha kufuneka wenziwe kanye kwimimandla free.

Ubeke phi na eshushu-phindiweyo galvanizing?

Iindleko avareji dip galvanizing abilayo 30-35 amawaka. Hlikihla. 1 t. Kulo mzekelo, kukho ukutenxa kule kwipaseji, ukuba yinto odolo non-esezantsi. Ukusebenza inani layo kunye nobume kweemveliso. Kudla iinkampani zinika inkonzo epheleleyo, equka multi-kwisigaba eshushu-dip galvanizing. Price Umjikelo epheleleyo, apho kuya kubakho imisebenzi zokuzilungiselela, kwaye ukufikelela amawaka-50. Kuba lo mali baqhele inikwa ukusetyenziswa wezenzi ezikumgangatho ophezulu, womise imveliso ukuphathwa emagumbini ezizodwa, nasekuziqiniseni amaxwebhu yomsebenzi umgangatho zeengcali.

Izinto eziluncedo nezingeloncedo le ndlela

Kumashishini amakhulu ezisebenza kunye izixa ezikhulu ngesinyithi, le ndlela wokhuseleko umhlwa kangangoko ngokuyintloko ngenxa yezizathu zoqoqosho. Ngaphezu koko, iteknoloji inika umqobo ethembekileyo nxamnye ngokudleka ngexesha elifanayo akuthethi ukunciphisa yokusebenza thermal kunye zombane conductivity lo mbandela. Njengokuba kubakho iingxaki, hot-phindiweyo kwalenza izakhiwo zentsimbi kufuna ukusetyenziswa aphezulu components ubunzima esebenzayo kunye nombutho ngocoselelo inkqubo iyonke. Bobubi eshushu-dip galvanizing ekunokuthiwa luthintelo isicelo yayo ngokunxulumene iinkcukacha - umaleko obhityileyo kulo mzekelo kusetyenziswa nje usebenze.

isiphelo

metal galvanizing technology ukhuselo isetyenziswa kakhulu emininzi iminyaka, kwaye kule mini ayikho ngoku uhambelwano olugqithayo. Iindlela andise ngenxa yokuba i eshushu-phindiweyo galvanizing umgangatho ukumelana umsebenzi ophambili - ukuthintela irusi ukwakhiwa. Le yindlela ethembekileyo kuye kwangqineka ithandwa zombini kushishino kunye lokwakha.

Apho ukuba imibuzo yokuqala kukuzuza amandla ukuqina ukuyilwa zesinyithi, njengokwamkelekileyo zinc ngeso lenyama.