Pamene kupanga mu patsogolo kufa, ndi workpiece kuthamanga, kukanikiza mikhalidwe ndi kuyambira zinthu amakhudza luso kupeza khola zojambula zotsatira popanda makwinya.
Q: Timapanga chikhocho muzitsulo zosapanga dzimbiri 304.Pa siteshoni yoyamba ya kufa patsogolo, timakokera pafupifupi mainchesi 0.75 kuya.Ndikayang'ana makulidwe a perimeter ya butt flange, imatha kusiyana ndi mainchesi 0.003 kuchokera mbali imodzi kupita imzake.Kugunda kulikonse ndi kosiyana ndipo sikumawonekera pamalo amodzi.Ndinauzidwa kuti chinali ndi chochita ndi kukonza kwa zopangira, mwina m'mphepete mwa spool yayikulu.Kodi tingapeze bwanji kapu ya mawonekedwe osasintha popanda ma creases?
A: Ndikuwona kuti funso lanu limapereka mafunso awiri: choyamba ndi kusiyana komwe mumapeza pojambula, ndipo chachiwiri ndi gwero lazinthu ndi ndondomeko yake.
Vuto loyamba ndi cholakwika chachikulu pamapangidwe a chidacho, ndiye tiyeni tikambirane zoyambira.Makwinya nthawi ndi nthawi komanso kusinthasintha kwa makulidwe a makapu atatambasula akuwonetsa zida zosakwanira zomangira pamalo anu otambasulira kufa.Popanda kuwona kapangidwe kanu kakufa, ndikadayenera kuganiza kuti nkhonya ndi kufa radii ndi zovomerezeka zawo zimakwaniritsa magawo onse apangidwe.
Panthawi yojambula, chojambulacho chimagwiritsidwa ntchito pakati pa chojambula chojambula ndi chogwiritsira m'mphepete, pamene nkhonya yojambula imakoka zinthuzo muzojambulazo, kuzikoka pambali yojambula kuti ipange chipolopolo.Kukangana kwamphamvu kumachitika pakati pa nkhungu ndi chogwirira ntchito.Panthawi imeneyi, zinthuzo zimagwedezeka ndi kuponderezedwa kodutsa, zomwe zimapangitsa kuti makwinya ndi ma radial elongation pamene chogwirizira m'mphepete chimayimitsa kutuluka kwa zinthuzo.Ngati chisindikizo chosindikizira ndichokwera kwambiri, zinthuzo zimasweka pansi pa mphamvu yokoka ya nkhonya.Ngati ili yotsika kwambiri, makwinya amawonekera.
Kujambula bwino sikungathe kupitirira malire pakati pa chipolopolo cha chipolopolo ndi m'mimba mwake.Malirewa amadalira kuchuluka kwa zinthuzo.Lamulo lalikulu ndikujambula 55% mpaka 60% nthawi yoyamba ndi 20% nthawi iliyonse pambuyo pake.Pa mkuyu.1 imasonyeza ndondomeko yoyenera yowerengera preform pressure yomwe ikufunika kutambasula (nthawi zonse ndimawonjezera osachepera 30% mphamvu yowonjezera ngati chitetezo. Izi zikhoza kuchepetsedwa ngati kuli kofunikira, koma n'zovuta kuonjezera pambuyo pa mapangidwewo).
Kuthamanga kwa billet p ndi 2.5 N / mm2 kwa zitsulo, 2.0-2.4 N / mm2 kwa aloyi yamkuwa ndi 1.2-1.5 N / mm2 kwazitsulo zotayidwa.
Kusiyanasiyana kwa makulidwe a flange kungasonyezenso kuti kapangidwe kanu kachida sikokwanira mokwanira.Nsapato ya nkhungu iyenera kukhala yokhuthala mokwanira kuti ipirire kugwedezeka popanda kupindika.Thandizo pansi pa nsapato liyenera kukhala lachitsulo cholimba, ndipo zikhomo zowongolera zida ziyenera kukhala zazikulu mokwanira kuti ziteteze kusuntha kwapang'onopang'ono kwa zida zam'mwamba ndi zapansi panthawi yotambasula.
Onaninso nkhani zanu.Ngati zowongolera zosindikizira zatha komanso kumasuka, simungapambane, ngakhale zida zanu zili zamphamvu bwanji.Yang'anani chotsitsa chosindikizira kuti muwonetsetse kuti ndicholondola komanso chapakati pautali wonse wa makina osindikizira.Onetsetsani kuti mafuta anu ojambulira asefedwa ndipo ali bwino, komanso kuti chidacho chikugwiritsa ntchito kuchuluka koyenera komanso malo oyenera a nozzle.Zida zonse zosindikizira zimafufuzidwa mosamala kuti zitsimikizire kutsirizika kwapamwamba, kuphimba ndi symmetry.Ndipo samalani kwambiri pojambula radii, ayenera kukhala ndi geometry yabwino komanso ukhondo wapamtunda.
Komanso, pamene makasitomala amakonda kuganiza kuti 304L ndi standard 304 ndizosinthana, 304L ndiye chisankho chabwino kwambiri chotambasula.L imayimira low carbon, yomwe imapatsa 304L 0.2% mphamvu zokolola za 35 KSI, pamene 304 ili ndi 0.2% yokolola mphamvu ya 42 KSI.Ndi mphamvu yotsika ya 16%, 304L imafuna mphamvu yochepa kuti iwonongeke ndikugwira nkhungu panthawi youmba.Ndi yosavuta kugwiritsa ntchito.
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Mu gawo loyamba la magawo awiri, wojambula zitsulo ndi wowotcherera Ray Ripple alowa nawo Dan Davis…
Nthawi yotumiza: Jan-03-2023