Umhlahlandlela kanjiniyela wokukhetha ishubhu lensimbi elilungile

Unjiniyela unezinketho eziningi uma kuziwa ekukhetheni ishubhu lensimbi elifanele lanoma yiluphi uhlelo lokusebenza. Amabanga 304 kanye ne-316 amashubhu ensimbi engenasici yiwona asetshenziswa kakhulu. Kodwa-ke, i-ASTM iphinde inikeze onjiniyela isixazululo esingcono kakhulu sezinhlelo zabo zokusebenza. Ngokulandela imihlahlandlela yokucaciswa, ihlangabezana nezinhloso zebhajethi ngenkathi isahlinzeka ngokusebenza okudingekayo phakathi nokuphila komkhiqizo.

Ukuthi ukhethe okungenamthungo noma okushiselwe
Lapho ukhetha impahla yeshubhu, kubalulekile ukwazi ukuthi kufanele ingabi namthungo noma i-welded. Amashubhu ensimbi engenamthungo angu-304 enziwe ngento eyaziwayo yekhwalithi ephezulu. Amashubhu angenamthungo akhiqizwa nge-extrusion, inqubo yokugunda izinga lokushisa eliphezulu, noma ukubhoboza okujikelezayo, inqubo yokudabula kwangaphakathi. Amashubhu angenamthungo avame ukuhlinzekwa ngokuqina kodonga oluphakeme ukuze akwazi ukumelana nezimo ezicindezelayo.
Ishubhu elishiselwe lakhiwa ngokugoqa ubude bomucu wensimbi libe isilinda, bese lishisisa futhi lihlanganisa imiphetho ukuze lenze ishubhu. Ibuye ingabizi kakhulu futhi inezikhathi zokuhola ezimfushane.

UKUCABANGA NGEZOMNOTHO
Izintengo ziyahlukahluka kakhulu kuye ngenani elithengiwe, ukutholakala kanye nesilinganiso se-OD-to-wall. Ukuhlinzekwa kanye nokufunwa kwezinto zakwamanye amazwe kuye kwacindezela amanani kuyo yonke indawo. Izintengo ze-nickel, ithusi ne-molybdenum zonke zikhuphuke futhi zehla kakhulu eminyakeni yamuva nje, okunomthelela omkhulu ezindlekweni zamashubhu ensimbi. Ngenxa yalokho, kufanele kuqashelwe okwengeziwe lapho kusethwa isabelomali sesikhathi eside sengxubevange ephezulu efana ne-TP 304, TP 316, i-cupro-nickel nama-alloys aqukethe u-6% we-molybdenum. Ama-alloys e-nickel aphansi njenge-Admiralty Brass, TP 439 kanye nama-super ferritics azinzile futhi ayabikezelwa.