Inqubo yokukhiqiza yepayipi lensimbi elishisayo-dip

Ipayipi elishisayo le-dip lensimbi, obeye aziwe njengoipayipi elishisayo lokucwilisa, ipayipi lensimbi elivulekele ipayipi lensimbi elijwayelekile ukuze lithuthukise ukusebenza kwalo kwesevisi. Isimiso sayo sokucubungula nokukhiqiza ukwenza insimbi encibilikisiwe isabelane ne-iron substrate ukukhiqiza ungqimba lwe-alloy, ukuze i-substrate ne-coating kuhlanganiswe. Kunjanihot-dip amapayipi ensimbikusetshenziwe? Ukugeleza kwenqubo yepayipi lensimbi elishisayo le-dip lihlukaniswe ngezinyathelo ezilandelayo:

1.Ukugeza nge-alkali: amanye amapayipi ensimbi anamabala kawoyela ngaphezulu, ngakho ukugeza nge-alkali kuyadingeka.

2.I-Pickling: i-hydrochloric acid ikhethwa ukuze kukhethwe ukususa isikhumba se-oxide endaweni yepayipi yensimbi.

3.Ukuhlanza: ikakhulukazi ukususa i-asidi esele kanye nosawoti wensimbi oxhunywe endaweni yepayipi lensimbi.

4.Izinsiza zokucwilisa: indima ye-flux ukususa konke ukungcola endaweni yepayipi yensimbi, ukuqinisekisa ukuthintana okuhlanzekile phakathi kwepayipi lensimbi nesisombululo se-zinc, futhi kwakha ukunamathela okuhle.

5.Ukomisa: ikakhulukazi ukuvimbela ipayipi lensimbi ukuthi lingacwiliswa ebhodweni le-zinc kanye nokuqhunyiswa.

6.I-Hot Dip galvanizing: izinga lokushisa loketshezi lwe-zinc ebhodweni le-zinc kufanele lilawulwe ngokuqinile ku-450+5 ° C, ipayipi lensimbi lizofakwa esithandweni somlilo futhi ligoqwe kuma-spirals amathathu e-zinc emshinini wokudonsa. Le mivunguzo emithathu inezigaba ezihlukene, okwenza ipayipi lensimbi lincike kuma-spiral. Ngokuzungezisa ama-spiral, ipayipi lensimbi liya phansi ohlangothini olulodwa ukuze lenze i-engeli yokuthambekela, bese lingena kubhavu we-zinc, liqhubeke liye phansi, futhi ngokuzenzakalelayo liwela kumzila wama-slide ebhodweni le-zinc; Uma ipayipi lensimbi liphakanyiselwa endaweni exutshwa kazibuthe, lizokhangwa futhi lihanjiswe kumzila wesondo elidonsayo.

7.Ukuvuthela kwangaphandle: ipayipi lensimbi lidlula iringi yokuphephetha yangaphandle ukuze iminyanise umoya futhi ikhiphe uketshezi oluningi lwezinc olusuka epayipini lensimbi ukuze kubonakale ukubukeka okubushelelezi nokuhlanzekile.
8.Ukukhipha: Inani le-zinc lingalawulwa futhi ukusetshenziswa kwe-zinc kungancishiswa ngokunciphisa ngokufanelekile isivinini sokudonsa.
9.Ukuvuthela kwangaphakathi: susa uketshezi oluningi lwezinki endaweni engaphakathi yepayipi lensimbi ukuze uthole indawo yangaphakathi ebushelelezi nehlanzekile. I-zinc liquid ekhishiwe yakha i-zinc powder ukuze igaywe kabusha.
10.Ukupholisa amanzi: izinga lokushisa lethangi lokupholisa amanzi kufanele lilawulwe ku-80 ℃, futhi ipayipi elinothayela lizopholiswa.
11.I-passivation: isixazululo se-passivation sifafazwa epayipini eliqediwe lendandatho yokushaywa ukuze kudlule ipayipi. Ngemuva kwendandatho yokushaywa yangaphandle, isisombululo se-passivation eseqile sishaywa ngomoya ocindezelwe.
12.Ukuhlola: ipayipi lensimbi elithathiwe liwela ebhentshini lokuhlola, ngemva kokuhlolwa, ipayipi likathayela elingekho lifakwa kubhasikidi wemfucuza, futhi ipayipi eliphelile liyapakishwa futhi lifakwe endaweni yokugcina.

Isheduli-40-galvanized-steel-pipe-9

Isikhathi sokuthumela: Oct-31-2022