Mumawona 'Stellite' ikuponyedwa mozungulira mozungulira ma valve, makamaka pamipira ndi mipando. Lingaliro laposachedwa ndilakuti ndi chinthu cholimba kwambiri, chosavala chomwe mumamenya nacho, komanso kuti vuto lathetsedwa. Ndipamene mavuto ambiri amayambira. Kwenikweni, kufotokoza a Mpira wa stellite valve ndi mpando si lingaliro limodzi; ndi mndandanda wa zosankha zolumikizana zokhudzana ndi gawo lapansi, njira yogwiritsira ntchito, kalasi yeniyeni ya Stellite, ndi makina omaliza. Pezani cholakwika chimodzi, ndipo gulu lonse likhoza kulephera kapena kulephera msanga, kutembenuza ndalamazo kukhala phunziro lokwera mtengo.
Lingaliro Lolakwika Lachikulu: Zonse Ndi Zovuta
Mapepala ambiri ogula amakhazikika pa kuuma, nthawi zambiri amafuna chinachake ngati HRC 40-45 osachepera pa Stellite 6 zokutira. Ngakhale kuuma ndikofunikira kwambiri pakukana abrasion, ndi gawo chabe la nkhaniyi. Ndawonapo mipando yomwe imakumana ndi kuuma kwake koma yosweka muutumiki chifukwa zida zapansi, kunena kuti 13Cr martensitic zosapanga dzimbiri, sizinakonzedwe bwino kapena Stellite idayikidwa molimba kwambiri popanda kupsinjika koyenera. Mgwirizanowo unalephera. Kutengeka ndi nambala kumanyalanyaza kugwirizana kwazitsulo ndi kupsinjika kotsalira kuchokera ku kuwotcherera kapena kupopera mbewu mankhwalawa.
Ndiye pali gawo lapansi. Simungangoyika Stellite pa chilichonse. Pa mpira, nthawi zambiri mumayang'ana pachimake 17-4PH kapena 316SS. Pampando, ukhoza kuphatikizidwa ndi 410 kapena Inconel 718. Ma coefficients akuwonjezera kutentha ayenera kukhala mu ballpark yomweyo. Ndikukumbukira pulojekiti ya valavu yotsika kwambiri pomwe mphete yapampando inali 316L, ndipo tidagwiritsa ntchito wosanjikiza wa Stellite 21. Panthawi yoyendetsa njinga yamoto, kufalikira kosiyanako kunapangitsa kuti tsitsi likhale losweka pamawonekedwe. Gawolo lidadutsa kuuma kwa QA ndi kulowa kwa utoto, koma zidalephera m'munda pambuyo pozungulira pang'ono. Chifukwa chake? Kusankha gawo la gawo la ntchitoyo kunali kolakwika.
Ntchito yofunsira yokha ndi malo amigodi. PTA (Plasma Transferred Arc) kuwotcherera ndikofala ndipo kumapereka chomangira chachitsulo cholimba kwambiri, koma kuyika kwa kutentha ndikofunikira. Kuyika kwa laser kumakhala kolondola kwambiri ndi kutentha pang'ono, koma mtengo wake ndi wapamwamba kwambiri ndipo mawonekedwe a ufa amayenera kukhala angwiro. Kuwotcherera kwa Oxy-acetylene, njira ya kusukulu yakale, idakalipo kuti ikonzedwe; imapereka ndalama zabwino, zofewa koma zimadalira kwambiri luso. Njira iliyonse imabweretsa ma microstructure osiyanasiyana, kuchuluka kwa dilution ndi chitsulo choyambira, komanso kupsinjika komaliza. Kutchula pamwamba pa Stellite popanda kufotokozera ndondomekoyi ndikuyitanira kusinthasintha.
Kusankha Mkalasi: Stellite 6, 12, 21, kapena Chinachake?
Stellite 6 ndiye kavalo wogwirira ntchito, corrosion wabwino wamba komanso kukana kuvala. Koma si nthawi zonse yankho. M'malo osokonekera kwambiri, ntchito zamchenga, Stellite 12, yokhala ndi mpweya wambiri wama carbides ambiri, imatha kukhazikika bwino. Komabe, kuuma kowonjezerako kumabwera ndi kukana kocheperako pang'ono. Kwa mautumiki okhala ndi cavitation yayikulu, monga mavavu otulutsa pampu, cholimba, chochulukira cha Stellite 21 nthawi zina chimatha kuyamwa ma micro-impacts bwino popanda micro-fracturing.
Apa ndipamene kuyanjana ndi malo opangira makina ndi makina omwe amamvetsetsa moyo wonse amafunikira. Kampani ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., ndi zaka makumi atatu akuponya ndi kupanga, amapeza izi. Iwo sali ongotengera madongosolo; luso lawo mu nkhungu zipolopolo ndi kuponya ndalama, kuphatikizapo ntchito yawo ndi cobalt ndi faifi tambala aloyi, zikutanthauza kuti amawona gawo kuchokera ku chitsulo chosungunula ku mapeto dimension. Ndiwo omwe angafunse ngati Stellite 6 PTA pamwamba pa mpira-woponyera 17-4PH ndi kuyitanira koyenera kwa ntchito inayake ya gasi wowawasa, kutanthauza kuti mwina njira yosiyana ya kutentha isanakwane kapena kusintha kwa aloyi wa nickel-based alloy monga Colmonoy kuti azitha kukana kupsinjika kwa sulfide.
Mdierekezi ali mu post-valali kutentha mankhwala ndi Machining. Pambuyo pakuphimba, kuchepetsa nkhawa sikungakambirane. Kumangirira pamwamba kuti zisaloledwe komaliza, makamaka pa mpira wozungulira kapena pampando wopapatiza, ndi luso lapadera. Mufunika makhazikitsidwe a CNC omwe ndi olimba mokwanira kuti azitha kudulidwa kwakanthawi ndi zida zomwe zimatha kuyendetsa zolimba, zamtundu wa Stellite popanda kuumitsa pamwamba. Mpando wosamangika bwino umakhala ndi misozi yaying'ono yomwe imakhala malo oyambira kukokoloka. Ndidayenera kukana magawo omwe amawoneka bwino pa CMM koma amamva ngati akhungu mukamayendetsa chala pamalo osindikizira - chizindikiro chodziwikiratu chazinthu zong'ambika kuchokera pachida chosawoneka bwino.
Zovuta Zenizeni Zapadziko Lonse ndi Ma Nuances a Misonkhano
Ngakhale ndi zigawo zangwiro, msonkhano ukhoza kupha ntchitoyo. Kulakwitsa kwachikale ndi kuthamangitsa chosungira mpando. Mwasindikiza mphete yapampando ya Stellite yopangidwa mwaluso iyi kapena yolumikizidwa pathupi lalikulu. Ngati kukwanira kuli kolimba kwambiri kapena torque yayitali kwambiri, mutha kusokoneza mphete yapampando, ndikupanga bore yopanda zozungulira. Mpirawo umangosindikizidwa pamalo okwera, zomwe zimapangitsa kuti pakhale kutha komanso kutayikira. Ndinaphunzira izi movutikira pamagulu a ma valve okwera mpira. Tinathamangitsa kutayikira kwa masabata, kulowetsa mipira ndi mipando, tisanayang'ane bore geometry ya thumba la mpando mu thupi - linali lozungulira ndi magawo khumi pambuyo pa msonkhano.
Chinthu chinanso chobisika ndi kuthyola kapena kugwedeza. Oyeretsa ena amaumirira kuti mipira ya Stellite ndi mipando iyenera kulumikizidwa pang'ono ngati seti yofananira. Ena amatsutsa kuti ndi makina amakono a CNC, ayenera kusindikiza kunja kwa bokosilo. Zomwe ndikuganiza ndizotengera kalasi ya kusindikiza. Kwa mipando yofewa ya ANSI Class VI (yolimba-yolimba), ndizosafunikira. Kwa okhala ndi zitsulo, Gulu la IV kapena V, kuwala kowala kwambiri, koyendetsedwa bwino ndi kophatikizana koyenera kungathandize pokwerera tinthu tating'onoting'ono tating'onoting'ono. Koma mopitilira muyeso, ndipo mumawononga geometry ndi kumaliza kwapamwamba. Ndi chinthu chokhudza, osati njira yomwe mungalembe mosavuta.
Ubwino wa Integrated Manufacturing
Ichi ndichifukwa chake kusiyana pakati pa malo ogulitsa ntchito ndi opanga ophatikizana ndikofunikira. Pamene kuponyera, kuphimba, chithandizo cha kutentha, ndi makina olondola ali pansi pa denga limodzi, kapena kugwirizanitsa mwamphamvu, mumapewa kuloza zala zambiri. Ngati pali cholakwika pakuyika kwa gawo lapansi komwe kumangowoneka pambuyo pakuphimba, wothandizira yemwe ali ndi vuto limodzi ndiye eni ake. Iwo akhoza kufufuza mbiri ya kutentha kwa gawolo kuyambira pachiyambi.
Kuyang'ana pa supplier ngati Mtengo wa QSY (https://www.tsingtaocnc.com), kupereka kwawo kwa nkhungu za chipolopolo ndi kuponyedwa kwa ndalama zophatikizidwa ndi makina a CNC azinthu kuphatikizapo ma aloyi opangidwa ndi cobalt amalankhula za kuphatikiza uku. Za a Mpira wa stellite valve, amatha ndalama kuponya pachimake cha mpira kukhala pafupi-ukonde mawonekedwe kuchokera zosapanga dzimbiri zoyenera, kuchita PTA cladding m'nyumba, kuchita zofunika pambuyo kuwotcherera kutentha mankhwala, ndiyeno kutsiriza makina ozungulira pamwamba ndi tsinde kugwirizana pa CNC lathe ndi moyo tooling. Kupitilira kumeneko kumawongolera zosintha. Katswiri angadziwe ndendende kuchuluka kwa katundu woti asiye popanga chotchinga, momwe gawolo limasokonekera powotcherera, komanso momwe angalikonzere pomaliza kuti ligwire chakhumi.
Njira ina ndi yogawikana: Kampani A imasiya kanthu, Kampani B imavala, Kampani C imatenthetsa, Company D imakonza. Gawo lirilonse limawonjezera mayendedwe, kukonza zolakwika, ndipo, mowopsa kwambiri, kufalikira kwaudindo. Mpando womalizidwa ukalephera kuyesa kutayikira kwa helium, aliyense amaimba mlandu mnzake. Njira yophatikizika singakhale yotsika mtengo nthawi zonse pamatchulidwe oyambira, koma imachepetsa kwambiri mtengo wamtengo wapatali komanso chiwopsezo.
Malingaliro Omaliza: Ndi Dongosolo, Osati Chophimba
Chifukwa chake, mukamaliza kuwunikanso zina za a Mpando wa satellite ndi mpira, yang'anani kupyola muyeso wakuthupi. Ganizirani mwadongosolo. Kodi chilengedwe chonse cha mankhwala ndi makina ndi chiyani? Kodi gawo lapansi ndi chiyani, ndipo limagwirizana? Kodi Stellite ikugwiritsidwa ntchito bwanji ndikumalizidwa? Kodi zigawozo zidzasonkhanitsidwa bwanji? Palibe mchitidwe wabwino kwambiri wapadziko lonse lapansi, koma mndandanda woyenera kwambiri wazomwe mungagwiritse ntchito.
Cholinga sikungokhala ndi gawo la Stellite. Cholinga chake ndi kukhala ndi njira yodalirika yosindikizira, yokhalitsa. Nthawi zina, izi zingatanthauzenso kukayikira zomwe zimayambira - pazovuta zina, ntchito zoyera, 440C yolimba kapena 17-4PH ya nitride ikhoza kugwira ntchitoyo pamtengo wotsika. Koma mukafuna kuphatikiza kukana kwa galling, kukana kwa dzimbiri, komanso kukana kukokoloka komwe ma aloyi a cobalt amapereka mwapadera, ndiye kuti mumadzipereka kupanga chigawo chonsecho ndikumvetsetsa kumeneko. Si kugula chinthu; ndi mgwirizano luso pakati mlengi ndi wopanga amene adetsedwa manja awo ndi ndondomekoyi. Ndiko kumene kudalirika kwenikweni kumamangidwa.
