Iwaranti yomvelisi wetyhubhu yebhoyila yokwenene
Umbhobho wensimbi ongenamthungo ophakamileyo kunye nombhobho webhoyila woxinzelelo oluphezulu luhlobo lwebhoyila yombhobho, oyinxalenye yodidi lombhobho wentsimbi ongenamthungo. Indlela yokuvelisa iyafana neyombhobho ongenamthungo, kodwa kukho iimfuno ezingqongqo kwibakala lensimbi elisetyenziselwa ukwenziwa kombhobho wensimbi. Iityhubhu zebhoyila ezinoxinzelelo oluphezulu zihlala zisetyenziswa phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu. Iityhubhu zebhoyila ezinoxinzelelo oluphezulu zisetyenziswa ikakhulu ukwenza iityhubhu zokufudumeza, iityhubhu zokufudumeza, iityhubhu zomoya, iityhubhu eziphambili zomphunga, njl.
Iityhubhu zebhoyila ezinoxinzelelo oluphantsi noluphakathi gb3087-2008 kunye netyhubhu yebhoyila yoxinzelelo oluphezulu GB5310-2008 yintsimbi ekwinqanaba eliphezulu lekhabhoni eyintsimbi eshushu eqengqelekayo kunye nebandayo etsalwa (iqengqelekisiwe) iityhubhu yentsimbi engenamthungo zokwenza iityhubhu zomphunga ezishushu kakhulu, iityhubhu zamanzi abilayo zoxinzelelo oluphantsi kunye noxinzelelo oluphezulu. iibhoyila ezinezakhiwo ezahlukahlukeneyo kunye neetyhubhu zomphunga ezishushu kakhulu, iityhubhu ezinkulu zomsi, iityhubhu ezincinci zomsi kunye neetyhubhu zezitena ze-arch kwiibhoyila ze-locomotive. Umbhobho wensimbi ongenamthungo wesakhiwo (GB / t8162-2008) ngumbhobho wensimbi ongenamthungo wesakhiwo ngokubanzi kunye nesakhiwo soomatshini.
Inkcazo kunye nomgangatho wenkangeleko:I-GB5310-2008 iityhubhu zentsimbi ezingenamthungo kwiibhoyila zoxinzelelo oluphezulu, i-diameter yangaphandle yeetyhubhu eziqengqelekayo yi-22 ~ 530mm, kwaye ubukhulu bodonga yi-20 ~ 70mm. Umbhobho ozotyiweyo (obandayo oqengqiwe) unobubanzi obungaphandle obuyi-10 ~ 108mm kunye nobukhulu bodonga obuyi-2.0 ~ 13.0mm.
Umbhobho wentsimbi ongenamthungo okhethekileyo ligama eliqhelekileyo lombhobho wentsimbi ongenamthungo kunye nezinye iimilo zecandelo ngaphandle kombhobho ojikelezayo. Ngokwemilo eyahlukeneyo kunye nobukhulu becandelo lombhobho wentsimbi, linokohlulwa lube ngumbhobho wentsimbi olinganayo omilise okwemilo ekhethekileyo (ikhowudi D), ubukhulu bodonga olungalinganiyo umbhobho wentsimbi ongenamthungo (ikhowudi BD) kunye nobubanzi obuguquguqukayo obunokwakheka okukhethekileyo. umbhobho wentsimbi ongenamthungo (ikhowudi BJ). Umbhobho okhethekileyo owenziwe ngentsimbi ongenamthungo usetyenziswa ngokubanzi kwiindawo ezahlukeneyo zesakhiwo, izixhobo kunye namacandelo omatshini. Xa kuthelekiswa nombhobho ojikelezayo, umbhobho owenziwe ngokukodwa unomzuzu omkhulu we-inertia kunye ne-modulus yecandelo, kwaye unokugoba okukhulu kunye nokuxhathisa kwe-torsion, enokunciphisa kakhulu ubunzima besakhiwo kunye nokugcina intsimbi.
(1) I-Gb3087-2008 iityhubhu zensimbi ezingenamthungo kwiibhoyili eziphantsi kunye neziphakathi. Indlela yokuvavanya ukubunjwa kweekhemikhali iya kuhambelana neendawo ezifanelekileyo ze-gb222-84 kunye neendlela ze-gb223 zokuhlalutya kweekhemikhali zentsimbi, intsimbi kunye ne-alloy.
(2) I-GB5310-2008 iityhubhu zentsimbi ezingenamthungo kwiibhoyili zoxinzelelo oluphezulu. Indlela yokuvavanya ukwakheka kweekhemikhali iya kuhambelana neendawo ezifanelekileyo kwi-gb222-84, iindlela zokuhlalutya iikhemikhali zentsimbi, intsimbi kunye nealloy kunye neendlela ze-gb223 zokuhlalutya iikhemikhali zentsimbi, intsimbi kunye nealloy.
(3) Ukwakhiwa kweekhemikhali kwimibhobho yensimbi yebhoyila ephuma kumazwe angaphandle kuya kuhlolwa ngokwemigangatho efanelekileyo echazwe kwikhontrakthi.
(2) I-alloy structural steel grade grade: 15mog, 20mog, 12crmog, 15CrMoG, 12CR2MOG, 12crmovg, 12Cr3MoVSiTiB, njl.
(3) Ukongeza ekuqinisekiseni ukwakheka kweekhemikhali kunye neempawu zoomatshini, i-1Cr18Ni9 kunye ne-1cr18ni11nb iityhubhu zebhoyila eziqhele ukusetyenziswa kwintsimbi erusayo ekwaziyo ukumelana nobushushu ziya kuxhomekeka kuvavanyo lwe-hydrostatic, ukugqabhuka kunye novavanyo lokucaba nganye nganye. Imibhobho yentsimbi iya kuhanjiswa kwimeko yokuphathwa bubushushu.
Ukongezelela, kukho iimfuno ezithile ze-microstructure, ubukhulu bengqolowa kunye ne-decarburization layer yombhobho wensimbi ogqityiweyo.
