Intshayelelo yemveliso
I-Astm A335 inkcazo esemgangathweni yombhobho wentsimbi engenamthungo ye-ferritic ialloy-steel yenkonzo yobushushu obuphezulu
Umgangatho we-ASTM A335 ukhutshwa phantsi kobizo olusisigxina A 335/A 335M; Inani elilandela emva konyulo libonisa unyaka wokwamkelwa kwasekuqaleni okanye, kwimeko yohlaziyo, unyaka wohlaziyo lokugqibela. Inani elikwizibiyeli libonisa unyaka wokuvunywa kwakhona kokugqibela. I-epsilon ephezulu ( ュ) ibonisa utshintsho lokuhlela ukususela kuhlaziyo lokugqibela okanye ukuvunywa kwakhona.
Ububanzi
1.1 Le nkcazo igubungela umbhobho we-alloy-steel ongenamthungo (umndilili) olungiselelwe inkonzo yobushushu obuphezulu (iMote 1). Umbhobho oyalelwe kolu luhlu uya kulungeleka ukugotywa, ukujika (i-vanstoning), kunye nemisebenzi efanayo yokubumba, kunye ne-fusion welding. Ukhetho luya kuxhomekeka kuyilo, iimeko zenkonzo, iipropati zomatshini, kunye neempawu zobushushu obuphezulu.
QAPHELA 1 Α ISihlomelo X1 sidwelisa ubungakanani kunye nobukhulu bodonga lombhobho onokufunyanwa phantsi kwenkqubo yorhwebo yangoku.
1.2 Amabakala amaninzi e-ferritic steels (Qaphela 2) ahlanganisiwe.
Inqaku lesi-2
ΑIintsimbi zeFerritic kolu phawu zichazwa njengeentsimbi ezisezantsi neziphakathi-zengxubevange eziqulathe ukuya kuthi ga kunye nokuquka i-10％ chromium.
1.3 Iimfuno ezongezelelweyo (S1 ukuya kwi-S7) zohlobo lokuzikhethela zibonelelwe. Ezi mfuno zongezelelweyo zifuna ukuba kwenziwe iimvavanyo ezongezelelweyo, kwaye xa zifunwa, ziya kuchazwa ngokolandelelwano kunye nenani lolo vavanyo olufunekayo.
1.4 Amaxabiso axeliweyo nokuba kwiiyunithi ze-inch-pound okanye iiyunithi ze-SI kufuneka athathwe ngokwahlukeneyo njengomgangatho. Ngaphakathi kokubhaliweyo, iiyunithi ze-SI ziboniswa kwizibiyeli. Amaxabiso achazwe kwinkqubo nganye akalingani ncam; ngoko ke, inkqubo nganye kufuneka isetyenziswe ngokuzimeleyo kwenye. Ukudibanisa amaxabiso asuka kwezi nkqubo zimbini kunokukhokelela ekungahambelani nengcaciso. Iiyunithi ze-intshi yephawundi ziya kusebenza ngaphandle kokuba igama elithi "M" le nkcazelo licacisiwe kulandelelwano.
Qaphela 3ΑI-NPS yomyili engenamlinganiselo (ubungakanani bombhobho oqhelekileyo) ufakwe endaweni yalo mgangatho kumagama esintu anjenge "dayamitha yesiqhelo," "ubukhulu," kunye "nobungakanani begama."
Izinto eziphathekayo kunye noVeliso
Umbhobho usenokuba shushu ugqitywe okanye ubanda ngokutsalwa ngobushushu bokugqiba unyango oluphawulwe ngezantsi.
UVavanyo lweTension oluNqamkileyo okanye lweLongitudinal kunye noVavanyo loKutyabeka, uvavanyo loBulukhuni, okanye uVavanyo lwe-Bend TestMechanical luchaziwe
Ukufudumala kwezinto eziphathekayo kwisithando sohlobo lwe-batch, iimvavanyo ziya kwenziwa kwi-5% yombhobho kwiqashiso ngalinye eliphathwayo. Kwiiqashiso ezincinci, ubuncinane umbhobho omnye uya kuvavanywa.
Ukushisa kwezinto eziphathwayo ngenkqubo eqhubekayo, iimvavanyo ziya kwenziwa kwinani elaneleyo lombhobho ukwenza i-5% yeqashiso, kodwa akukho meko ingaphantsi kwe-2 ipayipi.
Amanqaku oVavanyo loBulukhuni:
I-P91 ayiyi kuba nobunzima obungadlulanga kuma-250 HB/265 HV [25HRC].
Amanqaku oVavanyo lwe-Bend:
Kumbhobho obubanzi bayo budlula i-NPS 25 kunye nomlinganiselo wobubanzi bodonga oluyi-7.0 okanye ngaphantsi kuya kufakwa kuvavanyo lokugoba endaweni yovavanyo lokucaba.
Omnye umbhobho onedayamitha elingana okanye edlula i-NPS 10 unokunikwa uvavanyo lokugoba endaweni yovavanyo lokucaba ngokuxhomekeke ekuvunyweni komthengi.
Imizekelo yokuvavanya i-bend iya kugotywa kwiqondo lokushisa lokushisa nge-180 ngaphandle kokuqhekeka ngaphandle kwesahlulo esigobileyo.
Uvavanyo lweHydrostatic
Idayamitha engaphakathi yokugoba iya kuba yi-intshi engama-25.
Ubude bombhobho ngamnye buya kuvavanywa i-Hydro, ngokukhetha ukwenziwa kovavanyo lombane olungonakaliyo lunokusetyenziswa.
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