304 insimbi engagqwali izingxenye zamashubhu awugqinsi anezindonga ukuze kulawulwe usayizi wokusanhlamvu ngesikhathi sokwelashwa ukushisa kuyadingeka, izinga layo lokushisa 304 insimbi engagqwali eliwugqinsi ishubhu enodonga linomthelela obaluleke kakhulu.

Nansi indlela yokulawula usayizi wosayizi wokusanhlamvu Indlela Isifingqo ngendlela elandelayo.
(1) Khetha izinga lokushisa elifanelekile lokushisisa
Izinga lokushisa lokushisa liphansi kakhulu, inqubo yokwenza i-austenitic 304 insimbi engagqwali ene-tube enodonga ihamba kancane, ayikwazi ngisho nokwakhiwa ngokugcwele, ukwelashwa kokushisa akukwazi ukufeza izidingo. Izinga lokushisa liphezulu kakhulu, kulula ukuthola okusanhlamvu okuqinile kwe-austenite. Banga ukuwohloka kokusebenza. Kufanele kube ukukhetha okunengqondo lokushisa lokushisa kuyahlukahluka kuye ngezici eziningana ukwakheka kwamakhemikhali 304 insimbi engagqwali obukhulu-ngodonga ipayipi, ukwakheka kanye nobukhulu izingxenye, noma yiziphi izidingo ezikhethekile, izinguquko cross section kanye nezidingo ezithile zobuchwepheshe.

(2) Nquma isikhathi esiphusile kanye nezingxenye ezingcono kakhulu zokufakwa kwe-insulation ngenjongo yokushisa ngayo, kanye nezingxenye zensimbi engagqwali engu-304 austenitic ngendlela elinganayo enodonga oluwugqinsi.
Ukubamba isikhathi ngokucabangela amaphuzu amabili kude kakhulu noma okubangelwa okusanhlamvu okukhulu kwe-austenite kuzokwengeza umjikelezo wokukhiqiza, ukunciphisa ukusebenza kahle, ukwelashwa kokushisa akusizi ukulawula inhlangano efanele yenhlangano yasekuqaleni kuthinta insimbi yokuqala Ngakho-ke, ubukhulu bokusanhlamvu izinsimbi zamathuluzi ekhabhoni ephezulu, ukuze kuvinjwe ukushisa ngokweqile nokuqina okukhulayo, khetha inhlangano encane yokuhlukanisa eyindilinga ehlukanisayo;. iklabhu ngemuva kokukhetha ukuhlakazeka okukhulu kwe-lamellar pearlite enhle noma inhlangano yokwelapha yokucisha kanye neyokushisa. Khetha ingqikithi yokusanhlamvu okuhle 304 ishubhu yensimbi engagqwali enodonga oluwugqinsi ukuze kube nokuzwela kokushisa kwemvelo encane yensimbi ecolisekile, ngakho-ke izimo zokushisisa ezijwayelekile ziqinisekisa izinhlamvu ezinhle ze-austenite.