Mukakhomerera '17 4 Investment casting' mukusaka, mwina mukuyang'ana chipolopolo chamatsenga-gawo lomwe ndi lamphamvu, losachita dzimbiri, komanso lovuta, zonse pamtengo wabwino. Zowona, kuchokera ku benchi yanga, ndizosokoneza. 17-4 PH zosapanga dzimbiri ndizinthu zabwino kwambiri, koma kuziphatikiza ndi njira yopangira ndalama sizongoyeserera chabe. Ndawonapo zojambula zambiri zomwe zimatchulidwa ndi rote, popanda kukambirana kwenikweni za chikhalidwe cha kutentha kwa kutentha (H900, H1025, ndi zina zotero) zoponyedwa, zomwe zimatengera makina omwe mumapeza. Ndiko komwe nthawi zambiri kutha kumayambira.
Chikoka ndi Chenjezo Laposachedwa
Lonjezo ndi losatsutsika. Investment casting zimakupatsani mwayi wopanga ma geometri owoneka bwino, owoneka ngati ukonde omwe angakhale ovuta kumakina kuchokera ku bar stock, makamaka muzinthu zolimba ngati 17-4. Ganizirani masamba a turbine, zida zopangira opaleshoni, kapena ma valve okhala ndi ndime zamkati. Zinyalala ndizochepa, zomwe zimakhala zofunikira pamtengo wamtengo wapatali.
Koma apa pali hiccup yoyamba yothandiza: fluidity. 17-4 mumkhalidwe wake wosungunula samayenda ngati 304 kapena 316. Ngati mapangidwewo ali ndi zigawo zoonda kwambiri kapena zimafuna kudzaza nkhungu yatsatanetsatane, yotambalala, mutha kuthamangira molakwika kapena kuzimitsa kozizira. Tidaphunzira izi koyambirira ndi gulu la ma sensor housings. Khoma laling'ono linali 1.2mm, ndipo tinali ndi 50% zotsalira mpaka tidakonzanso njira yolowera ndikuwonjezera kutentha kwa kuthirira - komwe kumadzetsa nkhawa zake zamapangidwe ambewu. Nthawi zonse kumakhala koyenera.
Apa ndipamene zinachitikira foundry zimakhala zosakambilana. Sitolo yomwe imangotsanulira mawonekedwe osavuta a chitsulo cha kaboni akhoza kukhumudwa kwambiri ndi 17-4. Muyenera bwenzi amene amamvetsa zitsulo, osati akamaumba. Ndakhala ndi zokambirana zabwino ndi matimu m'malo ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd.. Kuganizira kwawo kwa nthawi yayitali kuponya ndalama ndi ma aloyi apadera, monga tawonera patsamba lawo tsngtaocnc.com, akusonyeza kuti adadutsapo zovuta zakuthupi izi m'mbuyomu, zomwe ndi theka la nkhondo.
Post-Casting: Kumene PH Imachitika
Ili ndiye gawo lomwe silinatchulidwe kwambiri mu ma RFQ. Simumaponya 17-4 PH. Mumaponya 17-4 zosapanga dzimbiri mumkhalidwe wokhazikika. The Precipitation Hardning imabwera pambuyo pake. Chigawo cha as-cast ndi chofewa komanso chotheka. Ndiye inu kutentha kuchitira izo kwa anatchula H-condition.
Kuwongolera kofunikira ndikufanana kwa kutentha ndi mpweya. Ngati mukuyang'ana H900 kuti ikhale yolimba kwambiri (mozungulira 190 ksi tensile), kupatuka kwa 25 ° F mung'anjo kungayambitse kuuma kosagwirizana pakupanga. Nthawi ina tinali ndi gulu la magawo olumikizira zakuthambo omwe adalephera QC chifukwa thermocouple ya ng'anjo inali kugwedezeka; mbali za mbali imodzi ya thireyi anakumana spec, ena sanatero. Linali phunziro lokwera mtengo posangoganiza kuti chotenthetsera chatha.
Ndipo makina pambuyo kuumitsa? Ndizotheka koma zovuta. Ngati mukufuna kuchotsa zitsulo zazikulu, chitani mu annealed state post-cast, ndiye kuumitsa. Kuwala kulikonse mukamaliza kuumitsa kumafuna zida za ceramic kapena CBN, ndipo mukuwona zida zikuvala ngati khwawa. Mtundu wamtengo umasintha kwambiri potengera izi.
Dimensional Drift Panthawi Yochizira Kutentha
Mfundo yobisika yomwe imaluma okonza: kuuma kwa mvula kumayambitsa kusintha pang'ono, koma kodziwikiratu, kowoneka bwino. Sizili ngati kuzimitsa zitsulo za carbon, koma zilipo. Kwa kukula kwa 100mm, mutha kuwona kusintha kwa 0.05mm mpaka 0.1mm. Ngati muli ndi +/- 0.05mm kulolerana pa bore yovuta, muyenera kuwerengera izi. Tsopano nthawi zonse timapanga shrinkage / kukula kwachinthu chogwirizana ndi H-condition mu kapangidwe kake kakufa kofunikira. Kunyalanyaza izi kumatanthauza kutha ndi zinthu zofananira koma zakunja.
Zolephera Zenizeni Zapadziko Lonse ndi Kukonza
Ndikukumbukira ntchito ina ya panyanja—chochizira chapampu chosawononga dzimbiri. Zomwezo zinali 17-4 PH H1150 zosakaniza bwino za mphamvu ndi kukana kwa dzimbiri. Zojambulazo zinkawoneka zokongola, zodutsa X-ray, koma zidalephera kuyesa mchere wopopera kale kuposa momwe ankayembekezera.
Chifukwa chake? Intergranular dzimbiri. Kuwonekera kwa nthawi yayitali mu chithandizo cha ukalamba cha 1150 ° F, ngati sichiwongoleredwa bwino, kungayambitse chromium carbides kutsika malire a tirigu, kuwononga chromium kwanuko. Kukonzekera sikunali kusintha zinthu, koma kusintha kutentha kutentha ndi kuonetsetsa kuzimitsa mofulumira pambuyo siteji anneal. Izi sizinthu zamabuku; ndi mtundu wa njira nuance inu kuphunzira kuchokera kuthamanga zikwi za zigawo ndi kuona zomwe zimasweka ndi chifukwa.
Uwu ndiye mtengo wa ogulitsa omwe amaphatikiza kuponyera ndi makina. Ngati bungwe lomwelo limayang'anira ndondomeko yonse ya ndondomeko kuchokera ku nkhungu kupita ku gawo lomaliza, monga ma QSY ophatikizidwa kuponya ndalama ndi CNC makina kupereka, kuthetsa mavuto kumakhala njira yotseka. Simukuimba mlandu wa caster, ndiye wothira kutentha, ndiye wamakina. Ndemanga zake ndizachangu komanso zitha kuchitika.
Nthawi Yogwiritsa Ntchito, Nthawi Yoyenda
Ndiye, kodi '17 4 kuyika ndalama' kumakhala komveka? Choyamba, pamene zovuta zimakhala zokwera ndipo mtengo wa makina kuchokera ku olimba ukhoza kukhala wotsika kwambiri. Chachiwiri, pamene mukufunika kuphatikiza zolimbitsa dzimbiri kukana ndi mkulu mphamvu mu gawo lomwelo. Chachitatu, mukakhala ndi voliyumu yotsimikizira mtengo wa zida za ceramic nkhungu.
Kodi muyenera kuganiziranso liti? Kwa mawonekedwe osavuta - flange yoyambira kapena kapamwamba kolunjika. Ingopangani makina. Pazinthu zomwe zimafuna kukana dzimbiri komaliza m'malo ochepetsa asidi, zosapanga dzimbiri zosiyanasiyana zitha kukhala zabwinoko. Ndipo pa ntchito yotentha kwambiri, kumbukirani kuti mikhalidwe ya H imataya mphamvu kuposa 600 ° F.
Ndikoyeneranso kufunsa za ma aloyi ena. Nthawi zina, duplex zitsulo zosapanga dzimbiri zoponyedwa ndi makina zimatha kupereka chiwongola dzanja chabwinoko / magwiridwe antchito pakugwiritsa ntchito. Katswiri wabwino woyambira adzakhala ndi zokambirana ndi inu, m'malo mongovomereza kusindikizidwa.
The Supplier Landscape ndi Pragmatic View
Msikawu wadzaza ndi maziko omwe amati ali ndi mphamvu. Wosiyanitsa ali mu zokambirana zaukadaulo. Ndikayang'ana mbiri ya ogulitsa, zaka 30 zamakampani, monga QSY imatchulira, zikuwonetsa kuti mwina adakumana ndi zinthu zambiri komanso kusintha kwazinthu. Zikutanthauza kuti mwina awona ma projekiti 17-4 omwe adagwira ntchito ndi omwe sanachite.
Kutchulidwa kwawo kogwira ntchito ndi ma aloyi opangidwa ndi cobalt ndi zitsulo zopangidwa ndi nickel ndi proxy yabwino. Ngati atha kuthana ndi kuthira ndikuwongolera ma superalloys amenewo, 17-4 ili bwino mkati mwa gudumu lawo lazitsulo. Vutoli nthawi zambiri limakhala pakukhazikika kwamayendedwe opanga, osapanga chitsanzo chimodzi chabwino.
Pamapeto pake, kutchula '17 4 kuyika ndalama' ndikuyamba kukambirana, osati kutha. Zimabweretsa pamodzi zinthu zovuta komanso njira yosavuta. Kupambana kumatengera kumvetsetsa mphambanoyo-zovuta zamadzimadzi, kuwongolera kutentha kosasinthika, ndi mawonekedwe ake. Yambitsani mgwirizano ndi malo ogulitsira aukadaulo, ndipo njirayo imapereka magawo omwe sangathe kupanga njira ina iliyonse. Zilakwitseni, ndipo mwasiyidwa ndi zodula kwambiri, zovuta kwambiri.
