Ngokuthuthuka komnotho kazwelonke, udonga oluqinile lwe-LSAW ipayipi lensimbi endaweni yesikhulumi esingasogwini, njengokushisa okuphezulu nokucindezela okukhulu komkhumbi wengcindezi, inqwaba yamapayipi omoya iye yasetshenziswa kabanzi.Ukukhiqiza lolu hlobo lwepayipi lensimbi ngokuvamile lisebenzisa insimbi ye-D36, insimbi ye-S355 futhi ingu-Z ekusebenzeni kwesakhiwo sepuleti lensimbi, ukushuba kwepuleti, okuqukethwe kwekhabhoni okukhudlwana kuphezulu, futhi okulingana nekhabhoni ephezulu, ukushisela okungekuhle, ukuthambekela kokuqina, kwehlisa ukusebenza kokushisela. Welding ngokuhlanganyela, kulula ukukhiqiza crack abandayo, ikakhulukazi emifantwini transverse avele ematfuba likhudlwana.Ngemuva kokuqhekeka kwe-welding, ngaphezu kwezinyathelo zokulawula ezidingekayo, kodwa futhi unake i-workpiece ukulungisa ngesikhathi.Insimbi ye-S355, isibonelo evela ngemva kokushisela izinyathelo zokulungisa ukuqhekeka okuphambene.Ukhonkolo uthi:

1, qinisekisa iphutha

I-100% yawo wonke ama-weld ekuhlolweni kwe-UT, maka indawo yokuqhekeka, ubude, ukujula kanye nesiqondiso.Uma ulayini wokushisela unephutha, futhi uphakamise ukudabula yonke indatshana yokushisela i-arc, induku yokushisela enconyiwe yokulungisa yendawo.

2, ngaphambi kokushisa kwendiza

Izinga lokushisa elingaphambi kokushisa lingu-110-170 ℃, izinga lokushisa langaphambi kokushisa libona indawo ye-weld nhlangothi zombili engekho ngaphansi kuka-150 mm, ukushisa ngaphakathi kwebanga lokukhubazeka kwebanga elizungeze ama-500 mm.

3, ukushaywa umoya

Ububanzi be-air gouging crack bulimaza iziphetho zombili ukuya ngaphandle, umoya omuhle we-weld ophumayo ophuma phakathi kokungekho ngaphansi kuka-50 mm, i-planer slot emikhawulweni yomibili yokuguquka okushelelayo, indawo yokuguquka ebushelelezi kanye nomugqa oqondile okungenani ngaphezu kuka-45 °.I-air gouging carbon rod kufanele ibe ngaphansi kuka-60 ° Angle, izofika ngokuqhekeka, ikakhulukazi nge-Angle ibe yincane ngangokunokwenzeka.

4, ukugaya

Ukuze kungabi mnyama, ukupholisha ngemva kwendawo kufanele kube ukuguquka okushelelayo, akufanele kube nomgodi ojulile ocijile.

5, PT

Ngemva kokuba selehlile izinga lokushisa elifanele lokuhlolwa kwe-penetrant (PT).

6, ukugaya

Ngokwesisekelo semiphumela yokuhlolwa kwe-PT, ukugaya, ukupholisha kuze kungabi khona umugqa obomvu.

7, MT

Yenza ngemva kokuhlolwa kwezinhlayiyana kazibuthe (MT), qiniseka ukuthi akukho ufa osele, ngaphandle kwalokho kufanele uqhubeke nokupholishwa, kuze kube (MT) ukuze uthole ukuqhekeka.

8, ukushisa ngaphambi kokushisela

Izinga lokushisa elinconywayo lokushisisa kuqala lingu-110-170 ℃, izinga lokushisa langaphambi kokushisa libona indawo ye-weld nhlangothi zombili ezingekho ngaphansi kuka-150 mm, ububanzi bokushisa be-weld ibanga elingaphansi kuka-500 mm.

9, ukushisela

Kwenziwa ngokuhambisana nemiyalelo yokusebenza yokulungisa i-welding, ububanzi be-weld abukho ngaphezu kuka-15 mm, bungakwazi ukuhlanganisa okuphambene nabo.Noma ingasetshenziswa, inqubo yokushisela ye-arc ezenzakalelayo engaphansi kwamanzi.

10, ukugcina ukushisa, ukupholisa kancane ngemva kokushisela

11, ukwelashwa ukushisa emva Welding

Ukwelashwa ukushisa ngemva kokushisela ngokuyinhloko ukusabalalisa i-hydrogen, ukunciphisa ingcindezi esele ngemva kokushisela, ngoba i-weldment enkulu yokuqina ibe "nokucutshungulwa kwe-hydrogen elimination" ekhethekile, "ukuqeda ukucindezeleka kokwelashwa kokushisa.Kunconywa uhlelo lokwelapha ukushisa: ngokushesha ngemva kokuphothulwa kokushisela nge-ceramic blanket kagesi ishisiswe ibe ngu-200 ℃, ukugcinwa kokushisa kuvala ukupholisa kancane kukagesi ngemva kwamahora angu-2.

12, ngemuva kokuhlolwa kwe-welding

Amahora angu-48 ngemva kokufakwa kwe-welding, ukuhlolwa kwe-NDT, ngokuhambisana nezidingo zokuqinisekisa ukukhanda okufanelekayo.