Thaum cov kws tshaj lij qhia ASTM A747 castings, lawv tsis yog xaiv cov khoom siv xwb - lawv tau cog lus rau qhov pib ua haujlwm. Tus qauv no tswj hwm cobalt-chromium-nickel alloys tsim rau huab cua hnav, corrosion, thiab thermal kuj-tshwj xeeb tshaj yog nyob rau hauv rotating twj tso kua mis Cheebtsam, siab-siab valve lub cev, thiab hydraulic system vaj tse nyob qhov twg tsis ua hauj lwm yog ib qho kev xaiv. Tab sis kev nrhiav ASTM A747 castings tsis yog nrhiav * ib qho * qhov chaw. Nws yog hais txog kev koom tes nrog tus neeg muag khoom uas kho qhov sib xws ntawm metallurgical tsis sib xws, uas tau lees paub txhua qhov cua sov tiv thaiv AMS 5387 tshuaj txwv, thiab leej twg tswj hwm tag nrho cov saw hlau: los ntawm T800-qib raw billet traceability mus rau qhov kawg GD&T tshuaj xyuas ntawm CMM calibrated.
Vim li cas "ASTM A747 Hoobkas" cov neeg tshawb nrhiav feem ntau ntaus tuag
Peb tau tshuaj xyuas ntau dua 200 RFQs los ntawm North American twj tso kua mis OEMs thiab European oilfield cov chaw muab kev pabcuam hauv 18 lub hlis dhau los. Feem ntau pib nrog ib lo lus nug ceev: "Koj puas tuaj yeem pov ASTM A747-thiab ua pov thawj nws?" Ntau tus neeg muab khoom teb ntau dhau "yog" ces nres ntawm cov ntaub ntawv pov thawj. Lawv subcontract melting, hla intergranular corrosion testing ib ASTM A262 Practice E, los yog tsis muaj peev xwm muab ntau-specific spectrographic qhia. Peb tau pom cov khoom pov tseg tsis kam lees - tsis yog qhov yuam kev loj - tab sis vim tias cov ntsiab lus chromium poob 0.3% qis dua 28-32% ntau yam xav tau los ntawm ASTM A747. Qhov sib txawv ntawd tsis tshwm sim rau ntawm daim duab. Nws tshwm sim raws li ntxov ntxov pitting nyob rau hauv qaub roj kev pab cuam.
Lub hwj chim tiag tiag tsis muaj peev xwm casting. Nws yog ntsug integration. Qhov tseeb ASTM A747 kev ua raws cai xav tau kev tswj hwm plaub theem txuas: kev lees paub cov khoom siv raw, nqus-arc remelted (VAR) los yog induction-melted pouring, tshuaj annealing nrog meej tsau sijhawm / ntsuas kub, thiab tom qab-kub-kho kho microstructure pov thawj. Yog tias tsis muaj kev tswj hwm, "ASTM A747 Hoobkas" dhau los ua cov lus lag luam - tsis yog qhov tseeb ntawm kev tsim khoom.
Qhov twg precision casting ua tau raws li kev ua haujlwm validation
Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ASTM A747 tsis yog daim ntawv teev npe. Nws yog lub hauv paus ntawm peb lub twj tso kua mis ua haujlwm. Peb cov xuab zeb-casting kab ncuav heats nyob rau hauv argon shrouding. Txhua batch undergoes spectrographic tsom xam ua ntej pouring - thiab dua tom qab kev kho cua sov. Peb khaws tag nrho traceability: yaj tooj, ladle kub nkhaus, txias tus nqi cov ntaub ntawv, thiab Rockwell C hardness nyob rau hauv peb cheeb tsam ntawm txhua casting. Rau AMS 5387-raws li qhov chaw-xws li cobalt alloy nozzles rau reciprocating twj-peb ntxiv ASTM E112 grain loj pov thawj thiab ASTM A262 Xyaum E intergranular corrosion kuaj ntawm cov neeg ua pov thawj.
Qhov kev qhuab qhia no tseem ceeb tshaj plaws ntawm qhov chaw geometry-sensitive. Siv piston twj tso kua mis lub tog raj kheej vaj tse: phab ntsa thickness variations saum toj no ± 0.15 hli ua rau uneven thermal expansion, ua rau qaug dab peg nyob rau hauv load. Peb cov txheej txheem sib txuas cov peev txheej-tus qauv raug nrog CNC-machined core boxes-tom qab ntawd txheeb xyuas qhov tseem ceeb bores nrog huab cua gaging thiab nto tiav nrog profilometry. Qhov tshwm sim? Lub tog raj kheej Housing tuav <0.005 hli roundness hla 300 hli ntev, txawm nyob rau hauv T800-raws li ASTM A747 castings.
Plaub yam tsis muaj kev sib tham rau lub hom phiaj tseem ceeb ASTM A747 khoom
- Raw khoom provenance: Peb tsuas yog VAR-refined cobalt-nickel billets nrog zeb xeem ntawv qhia txog C, Cr, Ni, Mo, Fe, Si, Mn, thiab N-tsim tawm tsam ASTM A747 Table 1 kam rau ua ua ntej txais
- Cov ntaub ntawv kho cua sov: Txhua lub voj voog ntawm lub tshuab hluav taws xob tau nkag mus-so lub sijhawm so, tus nqi ramp, cua dew point, thiab quench nruab nrab kub-nrog cov kos npe digital traceable rau tus neeg teb xov tooj thiab hloov
- Nyob rau hauv cov txheej txheem metrology: Qhov loj me me ntsuas nruab nrab ntawm kev siv Zeiss CONTURA G2 CMMs; nto kev ncaj ncees tau lees paub los ntawm SEM duab ntawm cov qauv txiav
- Functional test alignment: Cov rooj sib txoos zaum kawg raug kuaj xyuas raws li API 598, nrog cov nqi xau - tsis yog dhau los / ua tsis tiav - tawm tsam cov neeg siv khoom tshwj xeeb
Qhov no tsis yog theoretical. Peb lub hlis dhau los, peb tau xa 42 ASTM A747 center ncej rollers rau offshore winch systems. Txhua chav tsev muaj peev xwm ua kom muaj cua sov tag nrho, lub zog tensile> 1000 MPa, thiab kev cuam tshuam toughness> 35 J ntawm -20 ° C - tag nrho cov ntawv pov thawj ntawm ASTM E23. Tus neeg siv tau tshaj tawm xoom teb tsis ua haujlwm thoob plaws 18 lub hlis ntawm kev ua haujlwm hauv cov dej ntsev-laden marine ib puag ncig.
Kev nkag ncaj qha, tsis yog cov txheej txheem faib khoom
ASTM A747 cov haujlwm xav tau kev sib tham engineering-tsis yog daim ntawv xaj. Thaum tus kws tsim qauv German hydraulic valve thov kom peb ua kom tau raws li qhov hloov pauv hloov pauv hloov pauv, peb pab pawg tau ua haujlwm thermal stress simulations * ua ntej * tooling, flagged lub peev xwm kub-qhov chaw ntawm 3 teev chaw nres nkoj junction, thiab npaj ib qho chaw txias txias hloov. Qhov kev sib koom tes tau txiav lawv cov qauv coj ua lub sijhawm ua haujlwm los ntawm 22 hnub. Peb tuav GD&T kev txhais lus, kos duab validation, thiab manufacturability tawm tswv yim - tsis raws li add-ons, tab sis raws li tus txheej txheem cov kauj ruam.
Peb lub chaw muaj ntawv pov thawj ISO 9001 hauv Qingdao ua haujlwm ncaj qha B2B kev koom tes nkaus xwb. Tsis muaj distributors. Tsis muaj neeg nruab nrab. Koj tham nrog tus kws tshaj lij uas ua haujlwm CNC tshuab dhos txiav koj lub ASTM A747 ntsaws-tsis yog tus muag khoom hais los ntawm PDF catalog. Lub sij hawm ua cov txheej txheem raug kho thaum lub sij hawm hais: 12 lub lis piam rau thawj tsab ntawv pom zoo, 8 lub lis piam rau kev txiav txim rov qab - kaw hauv kev sau ntawv, nrog rau kev nplua rau kev ncua.
ASTM A747 Hoobkas kev koom tes ua tiav thaum metallurgy, machining, thiab kev lav phib xaub sib koom ua ke. Yog tias koj qhov kev txiav txim tom ntej no yuav tsum tau sau cov ntaub ntawv cobalt-alloy kev ncaj ncees-tsis yog ib daim ntawv tshwj xeeb-pib nrog cov ntaub ntawv taug qab, txheeb xyuas cov ntaub ntawv kho cua sov, thiab paub meej tias leej twg kos npe tawm ntawm CMM daim ntawv tshaj tawm kawg. Qhov sib txawv ntawm kev ua raws li kev qhia tshwj xeeb thiab kev cia siab ntawm thaj chaw nyob hauv cov ntsiab lus. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. tsim kom muaj qhov sib txawv hauv txhua lub ncuav.
