Ukucutshungulwa okungaphezulu kwamashubhu angenamthungo (smls) ikakhulukazi kuhlanganisa: ukuchama kweshubhu lensimbi, ukugaya kwendawo yonke kanye nokucutshungulwa komshini. Inhloso yawo ukuthuthukisa ikhwalithi ephezulu noma ukunemba kobukhulu bamashubhu ensimbi.

Ukudubula ukuchama ebusweni beshubhu elingenamthungo: Ukuchama kwesibhamu phezu kwepayipi lensimbi ukufafaza isibhamu sensimbi noma isihlabathi se-quartz (sekuhlangene esibizwa ngokuthi isihlabathi sokudubula) sosayizi othile phezu kweshubhu elingenamthungo ngesivinini esikhulu ukuze ungqongqoze. susa isikali se-oxide endaweni ukuze Uthuthukise ukushelela kwendawo yeshubhu lensimbi. Lapho isikali se-iron oxide esingaphezulu kweshubhu lensimbi sichotshozwa futhi sihlutshiwe, ezinye iziphambeko ezingelula ukutholwa ngeso lenyama nazo zizodalulwa futhi kube lula ukuzisusa.

Ubukhulu nobulukhuni bokudubula kwesihlabathi kanye nesivinini somjovo yizici ezibalulekile ezithinta ikhwalithi yokuchama yeshubhu lensimbi. Uma ukudubula kwesihlabathi kukukhulu kakhulu, ukuqina kuphezulu kakhulu futhi isivinini somjovo sishesha kakhulu, kulula ukuchoboza nokuwa esikalini se-oxide ebusweni bepayipi lensimbi, kodwa kungase kubangele inombolo enkulu yemigodi. osayizi abahlukene ebusweni beshubhu yensimbi ukwenza ama-pockmarks. Ngokuphambene nalokho, isikali se-iron oxide singase singasuswa ngokuphelele. Ngaphezu kwalokho, ukushuba nokuminyana kwesikali se-oxide endaweni yeshubhu lensimbi kuzophinde kuthinte umphumela wokudubula wokuchama.
Ukuqina nokujiya kwesikali se-iron oxide endaweni yeshubhu lensimbi, kuba mubi kakhulu umphumela wokuhlanza isikali se-iron oxide ngaphansi kwezimo ezifanayo. I-spray (shot) i-shot derusting iyindlela ekahle kakhulu yokususa amapayipi.

Ukugaya sekukonke kwendawo yeshubhu engenamthungo: Amathuluzi okugaya jikelele kwendawo engaphandle yepayipi lensimbi ikakhulukazi ahlanganisa amabhande abrasive, amasondo okugaya nemishini yokugaya. Ukugaya okuphelele kwendawo yangaphakathi yepayipi lensimbi kusebenzisa ukugaya isondo lokugaya noma ukugaya umshini wokugaya umshini wokugaya. Ngemuva kokuthi ingaphezulu leshubhu lensimbi seligaywe lilonke, alikwazi nje ukususa ngokuphelele isikali se-oxide ebusweni beshubhu lensimbi, lithuthukise isiphetho sepayipi lensimbi, kodwa futhi lisuse amaphutha amancane ebusweni bepayipi. ishubhu lensimbi, elifana nemifantu emincane, imigqa yezinwele, imigodi, imihuzuko, njll. Ukugaya ingaphezulu leshubhu lensimbi ngebhande elilumayo noma isondo lokugaya lilonke kungase kubangele ukonakala kwekhwalithi ikakhulukazi: isikhumba esimnyama ebusweni beshubhu lensimbi, ukujiya kodonga okweqile, indiza (i-polygon), umgodi, ukusha kanye nezimpawu zokugqoka, njll. Isikhumba esimnyama ebusweni bepayipi lensimbi sibangelwa inani elincane lokugaya noma imigodi ebusweni bepayipi lensimbi. Ukwandisa inani lokugaya kungaqeda isikhumba esimnyama ebusweni be-tube yensimbi.

Ngokuvamile, ikhwalithi yangaphezulu yepayipi yensimbi izoba ngcono, kodwa ukusebenza kahle kuzoba phansi uma ithubhu lensimbi engenamthungo ligaywa ngebhande elihubhuzayo lilonke.