1. Habka wax soo saarka ee saxan birta midabka
Saxan bir midab leh (sidoo kale loo yaqaan saxan midab, saxan bir ah oo midab leh,ppgi ppgl) waxay ku salaysan tahay saxan bir ah oo qabow-duuban, saxan bir galvanized ah ama gariiradda birta galvalume, ka dib pretreatment dusha (dereasing, nadiifinta, daaweynta beddelka kiimikada), iyo daahan (hab daahan rullaluistemadka), wax soo saarka by dubista iyo qaboojinta.
Qaab dhismeedka dahaarka waxaa ka mid ah laba jaakad iyo hal duban, laba jaakad iyo laba duban, iwm. Nolosha adeegga aan dayactirka lahayn waxay noqon kartaa 10-30 sano iyadoo ku xiran jawiga jawiga.
Habka ugu muhiimsan ee wax soo saarka ee caadiga ah ee laba-dahaarka iyo nooca laba-dubidda unugga midabka joogtada ah waa: uncoiler ----mashiinka tolida -- riixida rullaluistu---mashiinka kicinta --- --Qalabka Daboosha ---Hoos-u-dhigga Alkalka ----Nadiifinta----qallajinta--- Qalajinta----- Qallajinta ---Dahaarka bilawga ah ------- daahan bilowga ah iyo qalajinta ------ koodhka dushiisa ee dahaarka ah ------ qallajinta jaakad sare -- qaboojinta hawada iyo qaboojinta ---shaqada dabaysha Deji ----- dib-u-celinta ----- (the duubabka soo socda waa la soo guraa oo lagu shubaa).
Substrate-ka caadiga ah ee gariiradda birta ah ee midabka leh (ppgi ppgl coil)
(1) Substrate qabow oo duuban
Saxan midab leh oo laga soo saaro substrate-qabow-qabow wuxuu leeyahay muuqaal siman oo qurux badan wuxuuna leeyahay habsocodka saxan qabow-duuban;si kastaba ha ahaatee, xoqid kasta oo yar oo daahan dusha sare ah ayaa soo bandhigi doona substrate-ka qabow ee hawada, kaas oo si dhakhso ah u soo bandhigi doona birta si ay u dhaliso miridh cas.Sidaa darteed, alaabooyinka noocan oo kale ah waxaa loo isticmaali karaa oo keliya tillaabooyinka go'doominta ku-meel-gaadhka ah iyo qalabka gudaha ee shuruudaha hooseeya.
(2) Qulqulka kulul ee galvanized substrate
Alaabta lagu helay by daahan daahan organic on thegariiradda galvanized kulul-muquufinwaa xaashida galvanized ee kulul-midabka leh ee dahaarka leh.Marka lagu daro saamaynta ilaalinta zinc, daaha organic ee dusha sare ee xaashida kulul ee galvanized galvanized-midab-dahaarka ayaa sidoo kale ka ciyaara doorka ilaalinta iyo ilaalinta, ka hortagga miridhku, iyo nolosha adeeggu way ka dheer tahay tan kululaynta kuleylka. xaashi galvanized.Maadada zinc ee substrate galvanized-kuleelka ah ayaa guud ahaan ah 180g/m2 (laba-geesood), iyo waxa ugu badan ee zinc-ku ka kooban yahay substrate galvanized-kuleelka ah ee lagu dhisayo dibadda waa 275g/m2.
(3) Substrate Al-Zn oo kulul
Codsi, hgariiradda galvalume ot-dipWaxa kale oo loo isticmaali karaa sida substrates-dahaarka midabka (55% AI-Zn iyo 5% AI-Zn).
(4) Substrate electro-galvanized
Waraaqda korantada-galvanized ayaa loo isticmaalaa sidii substrate-ka, iyo badeecada lagu helay dahaadhka rinjiga dabiiciga ah iyo dubista waa xaashi midab-dahaar leh oo koronto-galvanized ah.Sababtoo ah lakabka zinc ee xaashida electro-galvanized waa dhuuban, maadada zinc badanaa waa 20/20g/m2, markaa alaabtani kuma habboona isticmaalka.U samee gidaarada, saqafyada, iwm. bannaanka.Laakiin sababta oo ah muuqaalkeeda quruxda badan iyo waxqabadka habaynta ee aad u fiican, waxaa inta badan loo isticmaali karaa qalabka guriga, maqalka, alaabta guriga, qurxinta gudaha, iwm.
Oogada sare waxay ku dahaadhay laba lakab oo rinji ah iyo lakab midab leh oo dusha danbe ah (Rinji dhabarka noocan ah guud ahaan kuma haboona isticmaalka hore)
Gariiradda birta ah ee prepained (ppgi ppgl) waa badeecad ka samaysan xaashi bir qabow-duuban, xaashi birta galvanized kulul ama birta galvalume go'yaal ka dib xaalufinta dusha sare, fosfitinta iyo daawaynta chromate, ka dibna lagu dahaadhay rinjiga organic oo la dubay.Dahaarka sida caadiga ah loo isticmaalo taarikada birta midabka midabka waa polyester (Nidaamka daahan BHP XRW, Baosteel JZ, Korea PGS, Taiwan PE), oo ay ku xigto xabagta silikoon (PSS), fluorine resin (PVDF), iwm qaab dhismeedka daahan waxaa loo qaybiyaa laba qaybood. Dhumucda dahaarka guud ahaan waa 20-25μ dusha sare iyo 8-10μ dhabarka.Heerarka sida caadiga ah loo soo xigtay ee xaashida birta midabaysan waa American ASTM A527 (galvanized), ASTM AT92 (aluminium-zinc), Japanese JIS G3302, European EN/0142, Korea KS D3506, Baosteel Q/BQB420
Waqtiga boostada: Jun-22-2022