Siddeed daawayn oo dusha sare ah oo loogu talagalay furayaasha xiraha
2021-10-30 00:00:00
Wixii soo saarista xirmooyinka isku dhufashada, daaweynta dusha sare waa geedi socod lama huraan ah, iibiyeyaal badan oo wax ka weydiinaya xirmooyinka xirmooyinka, habka daaweynta dusha sare, shabakada caadiga ah sida ku cad macluumaadka la soo koobay ee ku saabsan dusha sare ee xirmooyinka caarada siyaabaha caadiga ah ee wax lagu sameeyo waxaa jira siddeed nooc. foomamka, sida: madow (buluug), fosfating, zinc dip hot, dacromet, galvanized koronto, chrome plating, nikkel iyo zinc impregnation. Daawaynta dusha sare ee xiraha waa iyada oo loo marayo hab gaar ah si loo sameeyo lakabka daboolka ah ee dusha sare ee shaqada, ujeeddadeedu waa in dusha sare ee alaabta laga dhigo mid qurux badan, saameyn liddi ku ah.
Siddeed Hababka Daawaynta Dusha sare ee Isbuunyada Xajiyeyaasha:
1, Madaw (buluug)
Xidhiidhiyayaasha lagu daweynayo madow ayaa lagu dhejiyay taangiga xalka (145 ± 5 ℃) ee sodium hydroxide (NaOH) iyo sodium nitrite (NaNO2) kuleylinta oksaydhka iyo oksaydhka, dusha sare ee xirmooyinka birta ayaa soo saaray lakabka magnetic Fe3O4 (Fe3O4). ) filimka, dhumucdiisu guud ahaan waa 0.6 - 0.8μm madow ama buluug madow. Heerarka HG/20613-2009 iyo HG/T20634-2009 ee xirayaasha loo isticmaalo weelasha cadaadiska waxay u baahan yihiin farsamaynta buluuga ah.
2, Fosfatinta
Phosphating waa hab lagu sameeyo filim beddelidda kiimikaad fosfateed ee falcelinta kiimikaad iyo kiimikaad. Filimka beddelidda fosfatetada waxaa loo yaqaan filimka fosfatinta. Ujeedada fosfitinta waa in la ilaaliyo birta saldhigga ah iyo ka hortagga in birta ay daxaloobaan ilaa xad. Loo isticmaalo sidii asal ah ka hor rinjiyeynta si loo hagaajiyo adhesion iyo caabbinta daxalka ee filimka rinjiga; Waxaa loo isticmaali karaa dhimista khilaafyada iyo saliidaynta habka shaqada qabow ee birta ah. Halbeegga dhexroorka weyn ee labanlaaban - ulaha madaxa ee maraakiibta cadaadiska waxay u baahan yihiin fosfat.
3, Galvanizing Qulqulka kulul
Qulqulka kulul ee zinc waa in la quusiyo xubinta birta ka dib markii laga saaro miridhku galay xalka zinc wuxuu dhalaalay heerkul sare oo ku saabsan 600 ℃, si korka xubinta birta loogu dhejiyo lakabka zinc. Dhumucda lakabka zinc waa inuusan ka yarayn 65μm saxan khafiif ah oo ka yar 5mm, oo aan ka yarayn 86μm saxan qaro weyn 5mm iyo wixii ka sareeya. Markaa ciyaar ujeedada ka hortagga daxalka.
4. Dacroll
DACROMET waa tarjumaad DACROMET iyo soo gaabinta, DACROMET, DACROMET miridhku, Dicron. Waa dahaar cusub oo ka hortag ah oo leh budada zinc, budada aluminium, chromic acid iyo biyaha deionized oo ah qaybaha ugu muhiimsan. Ma jirto dhibaato qallafsan hydrogen, iyo joogteynta qulqulka-soo-qaadista waa mid aad u wanaagsan. Haddii ilaalinta deegaanka ee chromium hexavalent aan la tixgalin, waxa ay dhab ahaantii aad ugu habboon xirayaasha xoogga sare leh shuruudaha anticorrosion sare.
5, Galvanization koronto
Electrogalvanizing, oo sidoo kale loo yaqaan galvanizing qabow ee warshadaha, waa habka loo isticmaalo electrolysis si ay u sameeyaan lebis, cufan oo si fiican isku dhafan ama lakabka dhigaalka daaha ee dusha sare ee workpiece. Marka la barbardhigo biraha kale, zinc waa mid raqiis ah oo fudud in lagu dhejiyo birta, qiimo hoose oo iska caabinta daxalka, ayaa si weyn loo isticmaalaa si loo ilaaliyo qaybaha birta, gaar ahaan ka hortagga daxalka atmospheric, oo loo isticmaalo qurxinta. Farsamooyinka dahaadhida waxaa ka mid ah dhejinta godka (ama dhejinta dhejinta), duubista duubka (ku habboon qaybo yaryar), dahaadhidda buluugga ah, dahaadhaynta tooska ah iyo dahaadhaynta joogtada ah (ku habboon siligga, xariijinta).
Electrogalvanizing waa daahan inta badan loo isticmaalo xirmooyinka ganacsiga. Way ka jaban tahay wayna ka quruxsan tahay, waxayna ku iman kartaa madow ama cagaar cagaaran. Si kastaba ha ahaatee, wax qabadkeeda ka hortagga corrosion waa mid guud, wax qabadkeeda ka hortagga corrosion ayaa ah kan ugu hooseeya lakabka dahaarka zinc. Imtixaanka buufinta milixda ee dhexdhexaadka ah ee elektaroonigga ah ee 72 saacadood gudahood, waxaa sidoo kale jira isticmaalka shaabadeynta gaarka ah, samaynta tijaabada buufinta dhexdhexaadka ah ee dhexdhexaadka ah in ka badan 200 saacadood, laakiin qiimuhu waa qaali, waa 5 ~ 8 jeer galvanizing guud.
Xidhiidhiyayaasha qaybaha qaab dhismeedka guud ahaan waa zinc midab leh iyo zinc cad, sida 8.8 boolal ganacsi.
6, Chrome oo la dahaadhay
Dajinta Chrome waxay inta badan u tahay hagaajinta engegnaanta dusha sare, quruxda, ka hortagga miridhku. Plating Chromium waxa ay leedahay xasillooni kiimikaad oo wanaagsan kamana falceliso alkali, sulfide, nitric acid iyo inta badan asiidhyada organic, laakiin waxa ay ku milmaan hydrohalic acid (sida hydrochloric acid) iyo sulfuric acid kulul. Chromium wuu ka sarreeyaa qalinka iyo nikkel sababtoo ah ma beddelo midabka oo waxay sii haysaa muuqaalkeeda wakhti dheer marka la isticmaalo.
7, Nikkel oo lagu dhejiyo
Dajinta Nickel inta badan waa mid u adkaysata, ka-hortagga daxalka, ka-hortagga miridhku, guud ahaan dhumucda dhuuban ee habka waxa loo qaybiyaa koronto-samaynta iyo kiimiko laba qaybood.
8, Zinc impregnation
Mabda'a tignoolajiyada budada zincizing waa in la dhigo wakiilka zincizing iyo qaybaha birta iyo birta ee foornada zincizing iyo kulaylka illaa 400 ℃, iyo atamka zinc-ga firfircoon ayaa gudaha u geli doona qaybaha birta iyo birta bannaanka ilaa gudaha. Isla mar ahaantaana, atomyada birta ah waxay ku faafaan gudaha gudaha, kuwaas oo ka dhigaya isku-dhafka zinc-iron intermetallic, ama daahan zinc, oogada qaybaha birta.