Ukuthengisa okushisayo kwekhwalithi ephezulu ye-China umphakeli wethusi wensimbi engenasici afanelekile
Lokhu kufana kufaka imigoqo yensimbi engenasici eshisayo nebandayo, kufaka phakathi umjikelezo, isikwele, kanye ne-hexagonal, kanye namajambo ashubile asongwe noma ancishwe ama-angles wokwakha imithambo ye-boiler nengcindezelo.
Izinsimbi ezingenasici ezingama-304l zenziwa kusuka ku-chromium engu-18% efanayo, i-8% nickel, kepha ngokuqukethwe okuphansi kwekhabhoni kunezinto ezingama-304 ze-flange. Ngenkathi ukwakheka kwamakhemikhali kwensimbi engenasici 304L Flanges kuyafana nalokho kwebanga le-304, kunezinguquko ezithile ekwakhiweni kwamakhemikhali. Ukuguqulwa kwamakhemikhali kwebanga le-304L kuthuthukisa izakhiwo zalo njengokuzenzisa. Ukuncishiswa kokuqukethwe kwekhabhoni ku-ASME B16.11 CL3000 A182 F304L Slip On Flanges Alloy kanye nokufakwa kwe-nitrogen kubhekele izinguquko ku-alloy.