9711.1 Spiral Steel Pipe

Mapaipi ozungulira amagwiritsidwa ntchito makamaka pamapaipi amafuta ndi gasi, ndipo mawonekedwe ake amawonetsedwa ndi makulidwe akunja * khoma.Mapaipi ozungulira amatha kuwotcherera mbali imodzi kapena mbali zonse.Chitoliro chowotcherera chidzaonetsetsa kuti kuyesedwa kwa madzi, mphamvu yowonongeka ya weld ndi kuzizira kozizira kumakwaniritsa zofunikira.

Njira yochizira pamwamba:
1. Kuyeretsa
Zosungunulira ndi emulsions ntchito kuyeretsa pamwamba zitsulo kuchotsa mafuta, mafuta, fumbi, kusalaza wothandizila ndi zinthu zofanana organic, koma sangathe kuchotsa dzimbiri, oxide sikelo, kuwotcherera flux, etc. pamwamba zitsulo, choncho kokha amagwiritsidwa ntchito ngati njira yothandizira pakupanga anti-corrosion.

2. Zida kuchotsa dzimbiri
Choyamba, gwiritsani ntchito maburashi a waya ndi zida zina kupukuta pamwamba pa zitsulo, zomwe zingathe kuchotsa zotayirira kapena zowonongeka kwa oxide sikelo, dzimbiri, kuwotcherera slag, etc. Kuchotsa dzimbiri kwa zida zamanja kumatha kufika pamlingo wa Sa2, ndipo zida zamagetsi zimatha ndi Sa3 level.

3. Kutola
Nthawi zambiri, njira ziwiri za mankhwala ndi electrolysis zimagwiritsidwa ntchito potola.Pipeline anticorrosion imangogwiritsa ntchito pickling, yomwe imatha kuchotsa sikelo ya oxide, dzimbiri, ndi zokutira zakale.Nthawi zina amatha kugwiritsidwa ntchito ngati sandblasting ndi kuchotsa dzimbiri.Kuyeretsa ndi mankhwala kumatha kupangitsa kuti mawonekedwewo akhale aukhondo komanso okhwima, koma mawonekedwe ake ndi osazama, ndipo ndikosavuta kuyipitsa.

4. Kupopera (kuponya) kuchotsa dzimbiri
Kupopera (kuponya) dzimbiri kuchotsa ndi galimoto yamphamvu kwambiri imayendetsa kupopera (kuponya) masamba kuti azungulira pa liwiro lalikulu, kotero kuti grit zitsulo, kuwombera zitsulo, gawo la waya wachitsulo, mchere ndi zina zotsekemera zimapopera (kuponyedwa) pa pamwamba pa chitoliro zitsulo pansi pa mphamvu ya centrifugal., Sikuti amatha kuthetsa dzimbiri, oxides ndi dothi, komanso chitoliro chachitsulo chingathe kufika pamtundu wovuta wofunikira pansi pa mphamvu yamphamvu ndi kukangana kwa abrasive.
Pambuyo kupopera mbewu mankhwalawa (kuponya) kuchotsa dzimbiri, osati kukulitsa mphamvu ya adsorption ya chitoliro, komanso kumamatira kumakina kwa anti-corrosion wosanjikiza ndi chitoliro chapamwamba chikhoza kulimbikitsidwa.Choncho, kuchotsa dzimbiri kupopera (kuponya) ndi njira yabwino yochotsera dzimbiri paipi ya anticorrosion.Nthawi zambiri, kuwombera kuphulika (mchenga) dzimbiri kuchotsa zimagwiritsa ntchito mkati ndi kunja pamwamba mankhwala a chitoliro, ndi kuwombera kuphulika (mchenga) dzimbiri kuchotsa zimagwiritsa ntchito padziko mankhwala a chitoliro.