304 insimbi engagqwali ukunemba steel tube iwusizo kakhulu, ikakhulukazi embonini kagesi, lapho ingatholakala yonke indawo. Insimbi engagqwali ingathola isisekelo embonini kagesi ngezinzuzo zayo ezimbili zokuphepha, inhlanzeko, nokumelana nokugqwala. Nazi ezinye izicelo ezimele.

Okokuqala, izingxenye ezihlangana ngqo nokudla. 304 steel stainless steel precision tube ilingana “nompompi” njengendawo yokukhipha amanzi. Ukuthintana ngqo namanzi okuphuza kubaluleke kakhulu mayelana nokuphepha kanye nenhlanzeko yezinto ezisetshenziswayo. 304 insimbi engagqwali ibonwa ngumbuso njengensimbi engagqwali yezinga lokudla. Imvula yezinsimbi ezisindayo njenge-arsenic, i-cadmium, i-lead, i-chromium, ne-nickel ihlangabezana nezindinganiso eziqinile. Ukuze uthole imininingwane, sicela ubhekisele ku-“GB 4806.9-2016 National Food Safety Standard”.

Ukufakwa kwamapayipi kusebenzisa inqubo yokupholisha ukususa ukuphakama okweqile kwe-weld yodonga lwamapayipi angaphakathi. Udonga lwamapayipi lungapholishwa lube nomthelela wesibuko, okuthuthukisa ukumelana nokugqwala kanye nokumelana nokukala kwepayipi lensimbi engagqwali futhi kususe amafutha ukuze kufezwe ukuhlanzeka okudingwa yizinga lokudla, ukuze kusetshenziswe ngokuzethemba. I-ductility ye-304 steel stainless stainless steel precision tube yi-δ5 (%) ≥ 40, ubulukhuni ≤ 201HBW, ≤ 92HRB, ≤ 210HV; akulula ukuphuka lapho ugoba, futhi ingagoba kunoma iyiphi i-engeli, ngokusebenza okuhle kakhulu kokucubungula, kwehlise kakhulu izinga le-scrap, futhi ngokuyisisekelo yonga izindleko.

Ngaphezu kwalokho, isetshenziswa njengeshubhu lokushintshanisa ukushisa kuma-heaters amanzi egesi, osekunesikhathi eside isendaweni yokushisa ephezulu nendawo enomswakama, futhi inezidingo eziqinile zokumelana nokugqwala nokumelana nokushisa okuphezulu. Insimbi engagqwali engu-304 ingamelana namazinga okushisa aphezulu angu-800 degrees Celsius, kanye nokusebenza kwayo okushisayo (W·m-1·K-1): (100℃) 16.3, (500℃) 21.5, kuyisinqumo esingcono kakhulu sokushintshisana kokushisa kwe-heater yamanzi egesi amashubhu. Amashubhu ensimbi angu-304 ensimbi enembile aphathwa ngesixazululo esikhanyayo, esishisisa ishubhu lensimbi ezingeni lokushisa eliphezulu futhi sipholise ngokushesha, incibilikise ama-carbide enhlanganweni, ithuthukise ukumelana nokugqwala kweshubhu, futhi inwebe impilo yesevisi yokushisa. ishubhu yokushintshanisa. Ukupholishwa okunembayo kusetshenziselwa ukuthuthukisa ukushelela kodonga lweshubhu yangaphakathi, okwenza udonga lwamashubhu lumelane nokugqwala nokukala, nokuthuthukisa ukusebenza kokudlulisa ukushisa; insimbi engagqwali kulula ukuyisika futhi ingenziwa ibe amashubhu anezindonga ezincane. Ngaphezu kokuthuthukisa ukusebenza kokudlulisa ukushisa, kungase futhi konge izindleko, futhi ukusebenza nomnotho kuyaphilisana.

Okungenhla ukusetshenziswa kwamashubhu ensimbi engagqwali angu-304 embonini kagesi njengokuthintana okuqondile nokudla kanye namashubhu okushintshanisa ukushisa. Ngemva kokuhlaziywa okuningiliziwe kwezinto ezibonakalayo nokusebenza kokucubungula, kutholakala ukuthi amashubhu ensimbi enembile angama-304 angasetshenziswa ngale ndlela.