Dhuumaha Tooska ah ee Balaadhsan ee Kulul
Dhuumaha birta balaadhinta kulul waa tuubooyinka balaadhinta kulul, taas oo ah cufnaanta yara yar laakiin foosha tuubada birta ee xoogga leh (tuubo aan fiicneyn) ayaa loo tixraaci karaa ballaarinta kulaylka.Habka rogid ama habka sawiridda si loo ballaariyo dhexroorka tuubada.Dhumucda birta birta ah ee muddo gaaban, waxay soo saari kartaa noocyada aan caadiga ahayn iyo kuwa gaarka ah ee tuubooyinka aan la taaban karin oo leh qiimo jaban iyo waxtarka wax soo saarka sare, horumarka caalamiga ah ee hadda jira ee duurka tuubada.
Dhuumaha balaadhinta kulul waa iyada oo la ballaarinayo dhexroorka tuubada si loo dhammeeyo hababka - habka ballaarinta kulaylka ee wax soo saarka birta birta.Dhuumaha balaadhinta kulul waxaa caadi ahaan loo tixraacaa tuubooyinka birta ee kulul ee fidsan.
Qiyaasaha Farsamada ee Kulul Balaadhinta Dhuumaha Birta aan Xumaanta lahayn:
| Cabbirka magaca | Banaanka | Dhumucda gidaarka magaca ah (mm) | |||||||||||||
| DN | NPS | OD(MM) | SCH | SCH | SCH | STD | SCH | SCH | XS | SCH | SCH | SCH | SCH | SCH | XXS |
| 200 250 300 | 8 10 12 | 219.1 273.1 323.9 | 3.76 4.19 4.57 | 6.35 6.35 6.35 | 7.04 7.80 8.38 | 8.18 9.27 9.53 | 8.18 9.27 10.31 | 10.31 12.70 14.27 | 12.70 12.70 12.70 | 12.70 15.09 17.48 | 15.09 18.26 21.44 | 18.26 21.44 25.40 | 20.62 25.40 28.58 | 23.01 28.58 33.32 | 22.23 25.40 25.40 |
| 350 400 450 | 14 16 18 | 355.6 406.4 457.2 | 6.35 6.35 6.35 | 7.92 7.92 7.92 | 9.53 9.53 11.13 | 9.53 9.53 9.53 | 11.13 12.70 14.27 | 15.09 16.66 19.05 | 12.70 12.70 12.70 | 19.05 21.44 23.83 | 23.83 26.19 29.36 | 27.79 30.96 34.93 | 31.75 36.53 39.67 | 35.71 40.49 45.24 | -- |
| 500 550 600 | 20 22 24 | 508 559 610 | 6.35 6.35 6.35 | 9.53 9.53 9.53 | 12.70 12.70 14.27 | 9.53 9.53 9.53 | 15.09 - 17.48 | 20.62 22.23 24.61 | 12.70 | 26.19 28.58 30.96 | 32.54 34.93 38.89 | 38.10 41.28 46.02 | 44.45 47.63 52.37 | 50.01 53.98 59.54 | -- |
| 500 550 600 | 20 22 24 | 508 559 610 | 6.35 6.35 6.35 | 9.53 9.53 9.53 | 12.70 12.70 14.27 | 9.53 9.53 9.53 | 15.09 - 17.48 | 20.62 22.23 24.61 | 12.70 12.70 12.70 | 26.19 28.58 30.96 | 32.54 34.93 38.89 | 38.10 41.28 46.02 | 44.45 47.63 52.37 | 50.01 53.98 59.54 | -- |
| 660 700 750 | 26 28 30 | 660 711 762 | 7.92 7.92 7.92 | 12.70 12.70 12.70 | - 15.88 15.88 | 9.53 9.53 9.53 | -- | -- | 12.70 12.70 12.70 | -- | -- | -- | -- | -- | -- |
| 800 850 900 | 32 34 36 | 813 864 914 | 7.92 7.92 7.92 | 12.70 12.70 12.70 | 15.88 15.88 15.88 | 9.53 9.53 9.53 | 17.48 17.48 19.05 | -- | 12.70 12.70 12.70 | -- | -- | -- | -- | -- | -- |
| Dhexroor ka baxsan (mm) / | SCH | SCH | SCH | STD | SCH | SCH | XS | SCH | SCH | SCH | SCH | SCH |
| 457 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.70 | 23.88 | 29.36 | 34.93 | 39.67 | 45.24 |
| 508 | 6.35 | 9.53 | 12.70 | 9.53 | 15.09 | 20.62 | 12.70 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 |
| 559 | 6.35 | 9.53 | 12.70 | 9.53 | 22.23 | 12.70 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | |
| 610 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.70 | 30.96 | 38.39 | 46.02 | 52.37 | 59.54 |
| 660 | 7.92 | 12.70 | 9.53 | 12.70 | ||||||||
| 711 | 7.92 | 12.70 | 15.88 | 9.53 | 12.70 | |||||||
| 762 | 7.92 | 12.70 | 15.88 | 9.53 | 12.70 | |||||||
| Fiiro gaar ah: Heerarka sare iyo qeexitaanka ayaa kaliya loogu talagalay tixraac, waxaan sidoo kale soo saari karnaa badeeco la habeeyey iyadoo loo eegayo codsiga macmiilka. | ||||||||||||
Daaweynta dusha sare ee dhuumaha birta:
Si loo hagaajiyo nolosha adeegga dhuumaha saliidda, daaweynta dusha waxaa sida caadiga ah la sameeyaa si loo fududeeyo isku darka adag ee tuubada birta iyo daahan anticorrosive. Hababka processing Common yihiin: nadiifinta, derusting qalab, pickling, qarxinta rasaas derusting afar qaybood.
1 nadiifinta Dufan, boodhka, saliidaha, walxaha organic ku dheggan dusha sare ee tuubada birta, sida caadiga ah iyadoo la isticmaalayo dareeraha, emulsion si loo nadiifiyo dusha sare. Si kastaba ha ahaatee, miridhku, maqaarka oxide iyo alxanka dusha sare ee tuubada birta lama saari karo, sidaas darteed kuwa kale Hababka daawaynta ayaa loo baahan yahay.Qalabka miridhku ka saarida oxide dusha sare ee birta, miridhku, alxanka, waxay isticmaali kartaa burushka siliga birta si aad u nadiifiso oo u nadiifiso daweynta dusha sare. Qalabka derusting waxa loo qaybin karaa buug-gacmeed iyo awood
Heerka 2, derusting qalabka korontada ayaa gaari kara heerka Sa3. Haddii dusha sare ee tuubada birta ay ku xiran tahay maqaar gaar ah oo oksaydh ah, waxaa laga yaabaa in aan macquul ahayn in laga saaro miridhku iyada oo la kaashanayo qalabka, markaa waxaan u baahanahay inaan helno siyaabo kale.
3 pickling hababka caadiga ah ee pickling waxaa ka mid ah kiimiko iyo electrolysis. Laakiin kaliya pickling kiimikaad ayaa loo isticmaalaa ilaalinta daxalka dhuumaha la toogtay (cammuud) ka dib dib u habaynta.
4 xabbad qarxin ah oo ka saarista miridhku by matoor awood sare wad xawaaraha-xawaaraha sare ee garbaha wareega, birta birta, toogashada birta, qaybta, macdanta iyo silig kale oo abrasive hoos tilmaanta ficilka centrifugal xoog buufin dusha birta birta iyo saarista tirada badan, si fiican ka saar miridhku, oxides iyo wasakh hal dhinac, dhinaca kale, bir bir ah oo hoos timaadda ficilka saamaynta rabshadaha abrasive iyo xoog is jiid jiid, si loo gaaro roughness labis loo baahan yahay.Among afarta hababka daaweynta, qarxinta rasaasta iyo derusting waa hab daaweyn ku habboon derusting tuubada.Guud ahaan, qarxinta rasaasta iyo dildilaaca ayaa inta badan loo isticmaalaa daawaynta gudaha gudaha ee tuubada birta, iyo qarxinta rasaasta iyo burburinta ayaa inta badan loo isticmaalaa daawaynta dusha sare ee tuubada birta.
