Tarisai, kana vanhu vazhinji vakanzwa Stellite ichiratidza, vanobva vafunga kuti hazvigoneke. Ndiko kukanganisa kwekutanga. Iyo cobalt-chromium alloy, hongu, yakanyanya kuoma uye inoshingirira kupfeka, galling, uye corrosion. Asi kurova Stellite panzvimbo inotakura haisi yemashiripiti kugadzirisa. Ndakaona madhizaini achitadza nekuti mumwe munhu akaritsanangudza kune isiriyo application, kufunga kuomarara kwega kunogadzirisa zvese. Icho chokwadi chakanyanya kuwanda - ndezvekunzwisisa uko kuomarara ikoko kunoshanda, uko kunogona kunge kwakanyanyisa, uye zvakanyanya, kuti unoipinza sei pachikamu chakavimbika.
Iyo Alloy pachayo uye kwainopenya
Stellite haisi fomu imwe chete. Wawana mamakisi se6, 12, 21... imwe neimwe ine tweaks mu tungsten, kabhoni, molybdenum zvirimo. Kune mabheji, iwe unowanzo gara munzvimbo yeStellite 6 kana hama dzake. Hunhu hwayo hwekutanga hausi kuoma chete (kuri kumusoro uko, kwakatenderedza 40-50 HRC se-yakakandwa, yakakwira kana yakaomeswa), asi kugona kwayo kuchengetedza iyo kuomarara patembiricha yakakwira uye nekupokana kwayo-kwakazara kubata. Izvi zvinoita kuti ive yekuenda kune mamiriro ekuzora ari pamucheto, pakati, kana zvisingagoneke - funga maoko epombi mune abrasive slurry, trunnions dzevharuvhu mumhepo inodziya yakanyanya, kana zvimwe zvinzvimbo mumisanganiswa yebasa rakanyanyisa.
Ndinoyeuka chirongwa chemutengi wekugadzira makemikari. Vaive nejenarari resimbi isina tsvina yaipera mumavhiki nekuda kwemusanganiswa wekuratidzwa kweasidhi yakapfava uye kutakura zvinhu. Kuzora mafuta kwainge kusingaite. Takaronga a Stellite bearing Sleeve yakafukidzwa pajenari. Kiyi yaisangove sarudzo yenyama, asi kutsanangura Stellite 6B kune zvishoma zvirinani kuramba ngura pamusoro peiyo chiyero 6. Musiyano uyu unokosha pasi.
The flip side? Iine brittle. Iwe haugone kutora chikamu cheStellite-chakavharwa uye uchitarisira kuti chinomira chinorema kuvhunduka kana mapoinzi maitiro. Ichaputika kana kutsemuka. Ndakadzidza kuti zvakaoma kare nerock crusher application. Iyo dhizaini inodaidzira kuti Stellite yakafukidzwa paimba inotakura, asi dhizaini haina kuverengera kune dzimwe nguva tramp simbi. Mhedzisiro: kuparara kwenjodzi mushure memwedzi mishoma. Isu taifanira kudzokera kune yakaoma, kunyangwe isingapfeki-isingapfeki, zvinhu zvepasi zvine nzvimbo yakaoma-yakatarisana.
The Manufacturing Crucible: Casting vs. Overlay
Apa ndipo panosangana mugwagwa. Iwe hauwanzo kukanda chikamu chakakura chekutakura kubva kuStellite yakasimba-inodhura zvakanyanya uye kuomesesa kwekukanda kwehombe, ruzha rwakakosha. Iyo yakajairwa, inodhura-inoshanda nzira ndeyekuisa Stellite overlay pane yakasimba, yakawanda ductile substrate senge kabhoni simbi kana 316 isina tsvina.
Apa ndipo apo kugona kwemudiwa kunova kwakakomba. Makambani anga ari muchokwadi kukanda uye kugadzira kwemakumi emakore, senge Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), vaona matenderedzwa aya. Neanopfuura makore makumi matatu mugomba mold uye kukanda mari, vanonzwisisa metallurgical bonding. Nokuti a Stellite bearing pamusoro, iyo yekuvharira maitiro-kazhinji poda welding kana PTA (Plasma Transferred Arc)-inoda kudzorwa kudzivirira kunyungudika kweStellite musimbi yepasi uye kuderedza kupisa-kukanganisa kutsemuka kwenzvimbo. Mamiriro eQSY mukushanda nema alloys anokosha, kusanganisira cobalt-based, anovapa gumbo mu pre-heat uye post-heat treatment protocols, izvo zvisingagone kutaurirana kuti zvibudirire.
Ndakaongorora akavharika akatadza uko iyo Stellite layer yakangobviswa. Chikonzero chikuru? Inenge nguva dzose isina kukodzera kugadzirira kwepamusoro kana zvisiri izvo interlayer zvinhu. Dzimwe nguva unoda nickel-based buffer layer pakati pesimbi shaft neStellite kubata musiyano wekuwedzera kwemafuta. Aya ndiwo ma gritty details anoparadzanisa chikamu chekushanda kubva kune scrap bin candidate.
Machining uye Kupedzisa: The Final Hurdle
Zvakanaka, iwe une yako Stellite layer yakasungwa zvinobudirira. Iye zvino unofanirwa kuigadzira kuti inyatso kushivirira. Ichi chimwe chikara. Iwe haugone kushandisa yakajairwa HSS kana kunyange mamwe maturusi ecarbide; unoda magiredhi akasarudzika ecarbide, kazhinji aine chaiwo geometri, kana kuti unoenda kunokuya. Inononoka, inodya maturusi, uye inodhura.
CNC machining hunyanzvi hwakakosha pano. Iwo mareti ekudya, kumhanya, uye kudzika kwekucheka kwakasiyana zvachose nekugadzira mild simbi. Chitoro chinonyanyo gadzira aluminium kana simbi isina chinhu chinonetsa uye kuburitsa kupera kwakashata kwepamusoro izvo zvinokanganisa basa rekubereka. Kupedzisa pa a Stellite bearing pamusoro panofanirwa kuve pakanaka kwazvo kudzivirira kutanga kutsemuka uye kuve nechokwadi chekudyidzana kwakaringana kana zvichibvira. Iyi ndiyo imwe nzvimbo iyo zvitoro zvakasanganiswa zvinobata ese ari maviri alloy application uye iyo chaiyo machining, sezvakaratidzwa muQSY's sevhisi renji, inogona kuchengetedza kuwirirana uye kuzvidavirira kuburikidza nemaitiro ese.
Isu takanga tine nyaya yekuti kuvharika kwaive kwakakwana, asi kukuya kwekupedzisira kwakaunza micro-cracks nekuda kwekupisa. Chikamu chakapfuura nzvero yokutanga asi chakakundikana mubasa nguva isati yakwana. Iyo gadziriso yaive ichichinjika kune inokambaira-yekudya yekukuya maitiro nekuwedzerwa kunotonhorera kuburitsa. Chidzidzo: ketani yemaitiro haipere pakuiswa.
Kushandisa Pitfalls uye Real-World Compromises
Kutsanangura Stellite hakusi bhokisi rekutarisa. Iwe unofanirwa kufunga nezve mating surface. Kumhanya Stellite pachezvako kazhinji itsika yakaipa-inogona kuramba iine nduru pasi pekumanikidzwa kwakanyanya. Iyo yekirasi pairing ndeyeStellite inopesana neyakapfava, inoenderana zvinhu senge 316 isina tsvina kana yakanyatsogadziriswa bhuronzi. Izvi zvinobvumira iyo yakapfava zvinhu kupfeka zvishoma, kunyudza chero mabrasives uye kudzivirira iyo Stellite.
Corrosion ndiyo imwe nuanced point. Nepo Stellite ichiramba midhiya yakawanda inoparadza, haisi yepasirese inert. Mukudzikisa zvakanyanya maasidhi kana nharaunda dzine chlorides pakupisa kwepamusoro, unofanirwa kutarisa matafura ekuora zvakanaka. Dzimwe nguva, yakakwira-giredhi isina tsvina kana nickel-based alloy seHastelloy inogona kunge iri nani sarudzo yese, kunyangwe kana kupfeka kwayo kushomeka. Iko kutengeserana.
Mutengo unogara uchipinda muhurukuro. Iyo yakazara Stellite overlay process pane yakakura chikamu inogona kudhura 5-10x kupfuura yakajairwa yakaomeswa simbi sleeve. Kururamiswa kunouya kubva kune yakawedzerwa nguva yekumhanya, yakaderedzwa isina kurongeka yekudzika, uye chengetedzo mumasisitimu akavharwa kana akaoma-kusvika. Iwe hauzvishandise nekuti inotonhorera tekinoroji; unoishandisa nekuti iyo yakazara mutengo wevaridzi math inoshanda.
Kutarisa kune Supply Chain
Kutsvaga yakavimbika Stellite-inotakura zvinhu hazvisi zvekutsvaga akachipa mutengesi. Zviri pamusoro kuwana shamwari ane metallurgical ruzivo uye muitiro kudzora. Nhoroondo yemakore makumi matatu yefemu yakaita seQSY mukukanda nekugadzira alloys akakosha inoratidza kuti vakafamba munzira yekudzidza yekushanda nezvinhu zvakaoma senge cobalt uye nickel alloys. Chiitiko ichi chinoshandura zvakananga mukukanganisa kushoma kwekugadzira uye mazano ari nani panguva yechikamu chekugadzira.
Kana ndichiongorora mutengesi, handingotarise bhurocha ravo rinopenya. Ini ndinobvunza nezve yavo PTA weld overlaying paramita, nzira yavo yekusimbisa kutendeka kwebhondi (kazhinji kuongororwa kweultrasonic), uye maitiro avo akajairwa ekuzorodza kushushikana. Ini ndoda kuona maturusi avo ekubata zvikamu zvakaoma panguva yekugadzira. Aya ndiwo akasarudzika, anoshanda ruzivo anovimbisa kuti chikamu chinoshanda.
Pakupedzisira, a Stellite bearing mhinduro imhinduro yakagadzirwa zvakanyanya kune yakatarwa seti yehutsinye mamiriro. Haisi nhumbi. Kubudirira kwaro kunoenderana nekudzika, kunoshanda kunzwisisa kwemaitiro ealloy kubva kune yekutanga kana welding bay kusvika kune yekupedzisira micron-level kupedzisa pamushini weCNC. Kuigadzirisa kunonzwa kushoma sekukunda kwetekinoroji uye zvakanyanya semhedzisiro yakawanikwa-nesimba yekuremekedza zvinhu zvesainzi uye maitiro ekugadzirisa.
