Zifukwa zowonongeka kwa nkhungu za mphete zimakhala zovuta kwambiri ndipo ziyenera kufufuzidwa mwatsatanetsatane;komabe, akhoza kufotokozedwa mwachidule pazifukwa zotsatirazi:
1. Zomwe zimayambitsidwa ndi zida za mphete ndi mtundu wopanda kanthu
1)Zomwe zimagwiritsidwa ntchito mu mphete ndi chimodzi mwa zifukwa zofunika kwambiri.Pakadali pano, mphete yaku China imafa makamaka imagwiritsa ntchito 4Cr13 ndi 20CrMnTid, yomwe imakhala yokhazikika.Komabe, pali opanga zinthu zosiyanasiyana.Pazinthu zomwezo, padzakhala kusiyana kwina mu kufufuza zinthu, zomwe zidzakhudza ubwino wa nkhungu ya mphete.
2)kukonza ndondomeko.Uwu ndi ulalo wofunikira pakupanga nkhungu.Kwa nkhungu zachitsulo zazitsulo zazitsulo, nthawi zambiri zimakhala zofunikira pazitsulo zazitsulo monga kugawa kwa carbide muzinthu.Kutentha kopangira pompo kuyeneranso kuyendetsedwa mosamalitsa, kukhazikitsidwa kwa njira zowotchera zoyenera, kutsata njira zowotchera, komanso kuziziritsa pang'onopang'ono kapena kuziziritsa panthawi yake mukatha kufota.Osakhazikika njira mosavuta kuchititsa ming'alu mu mphete kufa thupi.
3)Kukonzekera kutentha mankhwala.Kutengera zakuthupi ndi zofunikira za nkhungu, njira zokonzekera zochizira kutentha monga kuziziritsa ndi kuzimitsa ndi kutentha zimagwiritsidwa ntchito kuwongolera kapangidwe kake, kuthetsa zolakwika zamapangidwe popanga ndi zosoweka, komanso kukonza magwiridwe antchito.Oyenera kukonzekera kutentha mankhwala mkulu mpweya aloyi nkhungu zitsulo angathe kuthetsa maukonde carbides, spheroidize ndi kuyenga carbides, ndi kulimbikitsa yunifolomu carbide kugawa.Izi zidzathandiza kuonetsetsa ubwino wa kuzimitsa ndi kutentha ndi kuonjezera moyo wa nkhungu.
2. mphete kufa kutentha mankhwala
1)kupsinjika ndi kupsinjika.Uwu ndiye ulalo wofunikira pakuwongolera kutentha kwa nkhungu.Ngati kutenthedwa kukuchitika panthawi yozimitsa ndi kutentha, sikudzangoyambitsa kuwonongeka kwakukulu kwa workpiece, komanso kumayambitsa mapindikidwe ndi kuphulika panthawi yozizira, zomwe zimakhudza kwambiri moyo wa nkhungu.Njira zochizira kutentha ziyenera kuyendetsedwa mosamalitsa komanso kugwiritsa ntchito kutentha kwa vacuum.Kutentha kuyenera kuchitika mu nthawi mutatha kuzimitsa, ndipo njira zosiyanasiyana zochepetsera ziyenera kutengedwa malinga ndi zofunikira zaumisiri..
2)kuchepetsa nkhawa annealing.Chikombolecho chiyenera kuthandizidwa ndi kupsinjika maganizo annealing pambuyo pa makina ovuta kwambiri kuti athetse kupsinjika kwamkati komwe kumadza chifukwa cha makina okhwima kuti apewe kupindika kwambiri kapena ming'alu yomwe imayambitsidwa ndi kuzimitsa.Kwa nkhungu zokhala ndi zofunikira zolondola kwambiri, chithandizo chochepetsera nkhawa chimafunika pambuyo popera, chomwe chimapindulitsa kukhazikika kwa nkhungu ndikuwonjezera moyo wake wautumiki.
3. Kutsegula chiŵerengero cha nkhungu ya mphete
1)Ngati kutsegulira kwa mpheteyo kuli kokwera kwambiri, kuthekera kwa kusweka kwa mphete kumawonjezeka.Aliyense wopanga nkhungu wa mphete adzakhala ndi kusiyana kwakukulu chifukwa cha mitundu yosiyanasiyana ya chithandizo cha kutentha ndi njira.Nthawi zambiri, zopangidwa ndi kampani yathu zimatha kukulitsa kuchuluka kwa 2-6% pamaziko a nkhungu zamtundu woyamba, ndipo zimatha kutsimikizira moyo wautumiki wa nkhungu ya mphete.
4. Kuvala mphete
1)Pamene mphete imafa imavala ku makulidwe enaake ndipo mphamvu imachepetsedwa mpaka pamene sichikhoza kupirira kupanikizika kwa granulation, kusweka kudzachitika.Ndikoyenera kuti mphete ya mpheteyo ilowe m'malo mwa nthawi yomwe mphete ikafa ivalidwe mpaka pamene mizere yothamanga imatuluka.
5. Kugwiritsa ntchito mphete kufa
1)Pa granulation ndondomeko ya mphete kufa, kuchuluka kwa zinthu kulowa sangakhoze kuloledwa ntchito pa 100% katundu chifukwa mkulu granulation linanena bungwe mphete kufa palokha.Kugwira ntchito kwanthawi yayitali komanso mwamphamvu kotereku kumapangitsanso kusweka kwa mphete kufa..Tikukulimbikitsani kuwongolera katundu pa 75-85% kuti muwonetsetse kuti moyo wautumiki wa mphete umafa.
2)Ngati mpheteyo ifa ndipo zodzigudubuza zapanikizidwa mwamphamvu kwambiri, kusweka kumatha kuchitika.Nthawi zambiri, timafunikira kuti mtunda pakati pa mphete kufa ndi chodzigudubuza uyenera kuyendetsedwa pakati pa 0.1-0.4mm.
6. Zosiyanasiyana
1) Kuthyolako kumachitika kwambiri pamene zinthu zolimba monga zitsulo zachitsulo zikuwonekera muzinthu za granulated.
7. Kuyika mphete ndi zovuta za granulator
1) Kufa kwa mphete sikumayikidwa mwamphamvu ndipo pali kusiyana pakati pake ndi granulator.Kufa kwa mphete kumathanso kusweka panthawi ya granulation.
2) Pambuyo pa chithandizo cha kutentha, nkhungu ya mphete imakhala yopunduka kwambiri.Ngati sichikonzedwa, nkhungu ya mphete imasweka pakagwiritsidwa ntchito.
3) Pamene granulator yokha ili ndi vuto, monga shaft yaikulu ya granulator kugwedezeka, etc.
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Nthawi yotumiza: Jan-25-2024