Yintoni ukungena kwe-welding?Ibhekiselele kubunzulu bokunyibilika kwesiseko sesinyithi okanye intsimbi yentsimbi engaphambili kwicandelo lomnqamlezo wejoyinti edityanisiweyo.
Amalungu adityanisiweyo aquka: i-weld seam (0A), indawo yokudibanisa (AB) kunye nendawo echaphazelekayo yokushisa (BC).
Inyathelo 1: Iisampulu
(1) Ukusika indawo ye-welding isampuli yokungena: a.Kuphephe ukuqala kunye nokumisa izikhundla
b.Sika kwi-1/3 yesiva se-weld
c.Xa ubude bebala le-weld lingaphantsi kwe-20mm, yinqumle embindini wesiva se-weld.
(2) Ukusika
A. Qhagamshela umbane kwaye ujonge ukuba isixhobo sokulinganisa siyahlangabezana neemfuno zovavanyo;Njengoko kuboniswe kuMzobo 1, vula indlu yokukhusela yomatshini wokusika i-metallographic kwaye ufake ibhloko yesampula yensimbi ukuze ihlolwe.
(Qaphela: Qinisekisa ukulungisa ibhloko yentsimbi ngokupheleleyo!)
b.Njengoko kuboniswe kuMfanekiso 2, vala igobolondo ekhuselayo yomatshini wokusika i-metallographic, vula i-valve yamanzi, kwaye uvule umbane wombane;Bamba umqheba womatshini wokusika i-metallographic kwaye ucofe ngokucothayo ujonge ezantsi ukusika isampuli yesinyithi.Emva kokusika, ubude, ububanzi kunye nokuphakama kwesampula yensimbi kuya kuba ngaphantsi kwe-4mm;Vala ivalve yamanzi, cima amandla, kwaye ukhuphe isampuli yesinyithi.
b.Njengoko kuboniswe kuMfanekiso 2, vala igobolondo ekhuselayo yomatshini wokusika i-metallographic, vula i-valve yamanzi, kwaye uvule umbane wombane;Bamba umqheba womatshini wokusika i-metallographic kwaye ucofe ngokucothayo ujonge ezantsi ukusika isampuli yesinyithi.Emva kokusika, ubude, ububanzi kunye nokuphakama kwesampula yensimbi kuya kuba ngaphantsi kwe-4mm;Vala ivalve yamanzi, cima amandla, kwaye ukhuphe isampuli yesinyithi.
Inyathelo lesi-3: Ukonakala
(1) Njengoko kubonisiwe kumfanekiso wesi-5, sebenzisa utywala obupheleleyo kunye ne-nitric acid ukulungiselela isisombululo sokubola (i-3-5% ye-nitric acid kunye notywala) kwikomityi yokulinganisa, faka isampuli yesinyithi kwisisombululo sokuhlwa okanye usebenzise ibrashi encinci ukuhlamba. umphezulu osikiweyo wokonakala.Ixesha le-corrosion li malunga ne-10-15 imizuzwana, kwaye umphumo othile wokutshatyalaliswa kufuneka uhlolwe ngokubonakalayo.
(2) Njengoko kubonisiwe kwi-Fig. 6, emva kokugqwala, khupha ibhloko yesampulu yesinyithi kunye ne-tweezers (qaphela: musa ukuchukumisa ulwelo lwe-corrosion ngezandla), kwaye uhlambulule isisombululo se-corrosion ebusweni bebhloko yesampula yesinyithi ngokucocekileyo. amanzi.
(1) Vuthela zome
Inyathelo 4: Ukuhlolwa kwendlela yokungena kwi-welding
| T (mm) bubunzima bepleyiti | |||
| Umlinganiselo omdala | Ibenchmark entsha | ||
| Ubukhulu bepleyiti | Idatha yokungena | Ubukhulu bepleyiti | Idatha yokungena |
| ≤3.2 | Ngaphezulu kwe-0.2 * t | t≤4.0 | Ngaphezulu kwe-0.2 * t |
| 4.0＜t≤4.5 | Ngaphezulu kwe-0.8 | ||
| 3.2~4.5(Kuquka 4.5) | Ngaphezulu kwe-0.7 | 4.5＜t≤8.0 | Ngaphezulu kwe-1.0 |
| t＝9.0 | Ngaphezulu kwe-1.4 | ||
| 4.5 | Ngaphezulu kwe-1.0 | t≥12.0 | Ngaphezulu kwe-1.5 |
| Qaphela: Ukuwelda kwepleyiti ebhityileyo kunye nepleyiti eshinyeneyo kusekwe kwipleyiti encinci | |||
(1.2) Idatum yokungena iWelding (enobude bomlenze obubonisa ukungena)
| L (mm) bubude bonyawo | |
| Ubude bonyawo | Idatha yokungena |
| L≤8 | Ngaphezulu kwe-0.2 * L |
| L＞8 | ngaphezulu kwe-1.5mm |
(2) Umlinganiselo we-welding yokungena (umgama a kunye no-b kukungena kwe-welding)
(3) Izixhobo zokuhlola ukungena kwe-welding
Inyathelo lesi-5: Ingxelo yokuhlolwa kokungena kwe-welding kunye nokugcinwa kweesampuli
(1) Ingxelo yokuhlola ukungena kwe-welding:
a.Ukongezwa kwedayagram enqamlezileyo yecandelo elihloliwe
b.Phawula indawo yokulinganisa yokungena kwe-welding kumzobo
c.Ukongezwa kwedatha
(2) Imigaqo yokugcinwa kweesampulu zokungena kwi-welding:
a.Ukugcinwa kwesakhelo S iinxalenye ze-13 iminyaka
b.Amalungu ngokubanzi aya kugcinwa iminyaka emi-3
c.Ukuba kuchazwe ngenye indlela kumzobo, kuya kuphunyezwa ngokweemfuno zomzobo
(Umphezulu wokuhlolwa kokugqobhoza unokuncamathelwa ngokuncamathelisa okucacileyo ukulibazisa ukurusa)
Ixesha lokuposa: Dec-22-2022