I-16Mn yekhwalithi ephezulu yomkhiqizi wepayipi lensimbi engenamthungo
(1) Ikhwalithi ephezulu ye-carbon structural steel amabanga afaka ama-20g, 20mng no-25mng.
(2) Ingxubevange amamaki ensimbi yesakhiwo: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, njll.
(3)Ngokungeziwe ekuqinisekiseni ukwakheka kwamakhemikhali nezici zokuwumshini, amashubhu kabhayela we-1Cr18Ni9 kanye ne-1cr18ni11nb avame ukusetshenziswa kunsimbi ekwazi ukumelana nokushisa azoba ngaphansi kokuhlolwa kwe-hydrostatic, ukuvutha kanye nokuhlolwa kokucaba ngakunye ngakunye. Amapayipi ensimbi azolethwa esesimweni esiphathwa ngokushisa.
(1)I-Gb3087-2008 amashubhu ensimbi angenamthungo amaboilers aphansi naphakathi. Ukuhlolwa kwe-tensile kuzohambisana ne-GB / t228-87, ukuhlolwa kwe-hydrostatic nge-GB / t241-90, ukuhlolwa okuphansi nge-GB / t246-97, ukuhlolwa kwe-flaring nge-GB / t242-97 nokuhlolwa okugoba okubandayo nge-gb244-97.
(2)I-GB5310-2008 amashubhu ensimbi angenamthungo amaboiler anengcindezi ephezulu. Ukuhlolwa kwe-tensile, ukuhlolwa kwe-hydraulic kanye nokuhlolwa kokucaba kuyafana nalokhu okucaciswe ku-gb3087-82; Ukuhlolwa komthelela ngokuya nge-gb229-94, ukuhlolwa kwe-flaring ngokuya nge-GB / t242-97 nokuhlolwa kosayizi wokusanhlamvu ngokuya nge-Yb / t5148-93; Ukuhlolwa kwe-Microstructure kuzohambisana ne-gb13298-91, ukuhlolwa kwe-decarburized layer kuzohambisana ne-gb224-87, futhi ukuhlolwa kwe-ultrasonic kuzohambisana ne-GB / t5777-96.
(3) Ukuhlolwa kokusebenza ngokomzimba kanye nezinkomba zamashubhu obhayela angenisiwe kuzokwenziwa ngokuhambisana nezindinganiso ezifanele ezishiwo kunkontileka.
Amandla amakhulu (i-FB) athwalwa isampula ngesikhathi sokwephuka ingcindezi etholwe endaweni yokuqala ephambanayo (so) yesampula ((σ)， Okubizwa ngokuthi amandla aqinile(σ b) , ku-N / mm2 (MPA) . Imele ikhono eliphezulu lezinto zensimbi ukumelana nokwehluleka ngaphansi kwengcindezi. Ifomula yokubala ithi:
Kuphi: FB -- amandla amakhulu athwalwa isampula uma yephukile, n (Newton); Ngakho-ke -- indawo yoqobo yesampula, mm2.
Ngezinto zensimbi ezinomphumela wokukhiqiza, ingcindezi lapho isifanekiso singaqhubeka sinwebeka ngaphandle kokukhula (ukugcina njalo) ukucindezeleka phakathi nenqubo yokushuba kubizwa ngokuthi iphoyinti lokukhiqiza. Uma ukucindezeleka kuncipha, amaphuzu aphezulu naphansi esivuno azohlukaniswa. Iyunithi yephoyinti lesivuno ngu-n / mm2 (MPA).
Iphoyinti lokukhiqiza eliphezulu (σ Su):ukucindezeleka okukhulu ngaphambi kokucindezeleka kwesivuno kwesampula kuncipha okokuqala; Iphoyinti lesivuno esiphansi (σ SL): ingcindezi encane esigabeni sokukhiqiza lapho umphumela osheshayo wokuqala ungacatshangelwa.
Ifomula yokubala yephoyinti lesivuno ithi:
Kuphi: FS -- ukucindezeleka kwesivuno (okungaguquki) kwesampula ngesikhathi sokushuba, n (Newton) ngakho -- indawo yoqobo yesiqephu sesampula, mm2.
