ho etsa nickel

Nickel casting e fana ka khanyetso e ikhethang mochesong, kutu le ho roala-ho etsa hore e be ea bohlokoa bakeng sa li-valve tsa hydraulic, matlo a pompo ea khatello e phahameng, le lisebelisoa tsa ho theola oli le khase. Empa ho fumana li-nickel tse nang le molumo, mokhoa o tsitsitseng ha se feela taba ea ho tšela tšepe e qhibilihisitsoeng ka har'a hlobo. Re se re kentse likarolo tse fetang 12,000 tsa nickel alloy ho tloha 2018-ho kenyeletsoa likarolo tsa pompo ea cobalt-nickel ea AMS 5387 le li-winch shafts tse thehiloeng ho T800-'me ho hloleha ho hong le ho hong ho re rutile ho hong ho nepahetseng. Bukana ena e hlalosa se sebetsang, se sa sebetseng, le hore na ke hobane'ng.

Qala ka Alloy e nepahetseng-'me u e netefatse

Ho hlahisa nickel ho qala nako e telele pele sebōpi se tuka. Li-alloys tsa nickel ha li fetohe. U sebelisa IN718 moo moreki a boletseng UNS N06625? Seo ha se sebaka-ke kotsi e sebetsang. Ka nako e 'ngoe re kile ra fumana li-bar tse tala tse ngotsoeng "Inconel 625" tse neng li lekoa ka 0.8% tlase ho molybdenum. Liphetho tse hlahisitsoeng li ile tsa feta tlhahlobo ea pono empa tsa hloleha ho etsa tlhahlobo ea setlolo sa letsoai ka lihora tse 72 - eseng 1,000. Ho hlahisa nickel ea 'nete ho qala ka litlaleho tsa tlhahlobo ea leloala tse netefalitsoeng (MTRs), netefatso e felletseng ka sebono sa OES, le ho latella palo ea mocheso. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., sehlopha se seng le se seng sa nickel kapa cobalt-nickel se fumana netefatso ea thepa e kenang khahlano le ASTM B446 kapa AMS 5708. Ha ho mekhelo. Haeba morekisi oa hau a ka tlola mohato ona, mokhoa oa hau oa ho tsamaisa o se o senyehile.

Laola Hlobo—Eseng Tšepe Feela

Lisebelisoa tsa nickel tse entsoeng ka tšepe li hloka botsitso bo feteletseng ba mocheso. Mefuta ea lehlabathe ea phunya. Investment shell coatings spall. Re bone lihlopha tsa porosity li thehoa eseng ho kenngoa ha khase-empa ho tloha ho silica reaction le nickel oxide ho 1,350 ° C. Ho lokisa? Sebelisa likhetla tsa matsete a zircon bakeng sa li-nickel tse nang le mabota a masesaane a ka tlas'a botenya ba 5 mm. Bakeng sa ho lahla lehlabathe, qoba lehlabathe le tala le kopantsoeng ka letsopa. Fetolela ho li-bunders tsa phenolic urethane tse sa bake tse nang le liphahlo tsa ceramic tsa ho hlatsoa-tse lekiloeng ho mamella > 1,400 ° C ntle le micro-cracking. Haholo-holo: preheat hlobo ho 250-350 ° C * 'me u tšoare* ka ≥90 metsotso. Ho tlola nako ea ho koloba ho baka mohatsela, phepelo e sa fellang, le ho koaleha serame—haholo-holo ka lijeometri tse rarahaneng joalo ka matlo a lisilindara tsa pompo ea piston tse nang le likanale tse futhumatsang ka hare.

Qoba Likotsi Tsena tse Tharo—Nako le Nako

• Ho nyenyefatsa matšeliso a ho honyela. Li-alloys tsa nickel li honyela ka 2.1–2.5% ka tatellano—e batla e le tšepe e bohlooho habeli. Mefuta ea CAD e lekantsoeng ho 2.3% e ntse e fana ka +0.12 mm ho kheloha ho likarolo tsa 300 mm haeba katoloso ea mocheso oa thepa ea paterone e sa tsejoe.
• Ho tlola tharollo ea anneal pele ho machining. Mehaho ea nickel ea as-cast e na le karohano ea dendritic le khatello ea maikutlo e setseng. Ho sebetsa pele ho phekolo ea mocheso ho lebisa ho warpage, chatter, le ho roala lisebelisoa pele ho nako-esita le ho kenya carbide. Lisebelisoa tsohle tsa rona tsa AMS 5387 le T800 li fumana tharollo e felletseng (1,150 ° C / 2 hrs / argon quench) pele ho mosebetsi oa CNC.
• Ho nka "nickel" e bolela "non-magnetic." Li-alloys tse ling tsa nickel-copper (mohlala, Monel 400) li boloka matla a khoheli a fokolang ka mor'a ho lahlela. Haeba kopo ea hau e hloka MRI-grade non-magnetism, bolela ASTM A479 Grade N04400 le <0.005 max μr—'me u netefatse ka gaussmeter post-heat-treat.

Ke Hobane'ng ha Khokahano e Otlolohileng e Fetola Liphetho

Liphoso tse ngata tsa ho lahla nickel li etsahala libakeng tse hahelletsoeng: setsing sa ho futhumatsa mocheso, se hloekisang mocheso ho setsebi sa machini, setsebi sa machini ho fihlela sephetho. Re laola mekhahlelo eohle e mene — setsing se le seng se netefalitsoeng ke ISO 9001. Ha moreki a ne a hloka li-valve tsa khatello e nang le ± 0.025 mm ID tolerance holim'a 120 mm bore, re lahlela, tharollo-annealed, rough-turned, age-harded, finish-bored, and honed-tsohle ka tlas'a marulelo a le mong. Sephetho? 98.7% tlhahiso ea pele ea pele. Bapisa seo le phallo ea mosebetsi ea kantle moo morekisi e mong le e mong a sebelisang li-offsets tsa bona tsa maemo, nalane ea mocheso, le mekhoa ea ho itokisetsa holimo. Ho feto-fetoha ha metsoako. Mohlala oa rona o otlolohileng o felisa ho hoholeha ha sehokelo, o netefatsa tsoelo-pele ea microstructure, le ho notlela ho latela GD&T ho tloha ho datum ho isa tlalehong ea tlhahlobo ea ho qetela.

Tlhahlobo ea ho Qetela: Botsa Lipotso tsena tse hlano pele u Lahlela

Pele o amohela qotso ea nickel-kapa o saena moetso-netefatsa lintlha tsena tse hlano:

1. Na boemo ba alloy bo lumellana le tikoloho ea ts'ebeletso-eseng feela matla a tsitsitseng, empa bophelo ba ho phatloha ha mocheso o sebetsang?
2. Na lisebelisoa tsa hlobo le li-profiles tsa preheat li ngotsoe-ha li nahane?
3. Na morekisi o netefatsa thepa e kenang *ebile* o boloka ho lateloa ha mocheso ka botlalo?
4. Na tharollo ea annealing e reriloe *pele ho * mochini ofe kapa ofe - 'me e netefalitsoe ka boima le litlaleho tsa boholo ba lijo-thollo?
5. Na litlhahlobo tsa CMM li etsoa likarolong tse pholileng ka ho feletseng, tse tsitsitseng-ha li chese ka ntle ho mohala?

Ho hlahisa nickel ha se mokhoa oa thepa. Ke konteraka ea metallurgic pakeng tsa morero oa moralo le 'nete ea' mele. Phapang e 'ngoe le e' ngoe - ebang ke k'hemistri, boemo ba mocheso, kapa nako ea ho lekanya - e siea monoana ts'ebetsong. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Re nka nickel casting e le boenjiniere ba bohlokoa haholo, eseng ho tšela tšepe. Hobane ha pompo ea hau e sebetsa ho 4,000 psi kapa valve ea hau e tiisa khase e bolila, ha ho na moeli oa "haufi ka ho lekaneng."