Alloy bushings daws cov teeb meem hnav hauv ntiaj teb tiag tiag thiab kev tsis sib haum xeeb - thaum lawv tau tsim txoj cai. Peb tau pom hydraulic twj tso kua mis sib dhos ua tsis tau tom qab 4,200 teev ua haujlwm vim cov qauv tooj liab bushings deformed nyob rau hauv cyclic radial load. Peb tau hloov tawg cam khwb cia-hlau qhia tes tsho nyob rau hauv offshore winch center shafts nrog kev cai alloy bushing inserts-thiab ncua kev pab cuam lub neej los ntawm 3.7 ×. Qhov no tsis yog theoretical. Nws yog daim teb-pov thawj metallurgy siv rau kev ua haujlwm geometry.
Yog vim li cas Standard Bushings tsis nyob rau hauv Industrial Loads
Feem ntau cov kev ua tsis tiav rov qab mus rau peb qhov kev xav tsis sib haum: qhov kev thauj khoom ntawd zoo li qub, qhov kub thiab txias tsis tu ncua, thiab qhov sib cuag saum npoo tseem tsis sib xws. Nyob rau hauv qhov tseeb, piston twj tso kua mis lub tog raj kheej vaj tse pom lub siab spikes saum toj no 450 bar thaum roj kub hloov los ntawm 35 ° C mus rau 110 ° C thaum lub sij hawm ua hauj lwm cycles. Qhov ntawd thermal expansion qhov sib txawv? Nws yog qhov twg misalignment pib. Bronze bushings soften ze ntawm 150 ° C. Steel-on-steel interfaces gall tsis muaj kev tswj kev sib txhuam coefficient. Thiab cam khwb cia hlau tsis muaj qhov microstructural stability xav tau rau sub-0.015 mm runout kam rau ua nyob rau hauv high-speed rotating sib dhos.
Peb tau taug qab 68 qhov kev ua tsis tiav thoob plaws hauv engineering tsheb hydraulic ntau tshaj 18 lub hlis. 73% koom nrog cov qhab nia ntxov ntxov ntawm cov ntawv xov xwm ncej-ua rau tsis yog los ntawm kev sib kis, tab sis los ntawm bushing creep nyob rau hauv sustained 120 MPa kev ntxhov siab. Qhov laj thawj tsis yog av. Nws yog khoom yield.
Alloy Bushing Materials: Matching Chemistry rau Kev Ua Haujlwm
Tsis yog tag nrho cov alloy bushings ua kom sib npaug. Cobalt-nickel alloys zoo li AMS 5387 xa hardness saum 45 HRC nrog zero thermal expansion hauv qab 500 ° C. T800 cobalt-raws li qib muaj zog compressive siab tshaj 1,100 MPa ntawm 600 ° C - qhov tseem ceeb rau downhole twj nozzles raug rau cov roj qaub thiab abrasive xuab zeb. Hlau castings nrog 3.2% chromium thiab 1.8% molybdenum tiv thaiv galling zoo dua cov hlau grey-tab sis tsuas yog thaum tshav kub-kho rau 28-32 HRC thiab ua tiav-hauv av rau Ra ≤0.4 μm.
Nov yog qhov ua haujlwm - thiab yog vim li cas:
- Cobalt-nickel (AMS 5387): Qhov zoo tshaj plaws rau oscillating loads> 100 kN thiab kub> 400 ° C. Retains dimension stability nyob rau hauv ± 0.002 hli tshaj 10,000 cycles.
- T800 cobalt alloy: Optimal rau non-lubricated los yog marginally lubricated interfaces. Coefficient ntawm kev sib txhuam nyob qis dua 0.28 txawm tias tom qab 500 teev qhuav khiav.
- Chromium-molybdenum cam khwb cia hlau: Nqi-zoo rau nruab nrab-siab li qub qhov chaw ceev ceev nyob rau hauv 1.2 m / s thiab ambient temp nyob qis dua 120 ° C.
Siv cobalt alloy nyob rau hauv ib tug low-load gearmotor vaj tse? Overkill - thiab kim. Siv cam khwb cia hlau nyob rau hauv lub offshore twj tso kua mis foundation? Guaranteed spalling hauv 18 lub hlis. Kev xaiv cov khoom tsis yog hais txog specs. Nws yog hais txog ciam teb tej yam kev mob.
Design & Manufacturing: Qhov twg Precision ua tau zoo
Ib qho zoo meej alloy chemistry txhais tau tias tsis muaj dab tsi yam tsis muaj geometry meej. Peb tshuab cobalt alloy bushings ntawm 5-axis CNC chaw nrog pob zeb diamond tig sab hauv bores-ua tiav roundness ≤0.003 hli thiab nto tiav Ra 0.2 μm. Vim li cas qhov ntawd tseem ceeb? Vim hais tias ib tug 0.008 hli tawm-ntawm-ib puag ncig mob tsub kom lub zos kev sib cuag kev nyuaj siab los ntawm 47% ntawm lub siab point. Qhov ntawd yog qhov uas microcracks nucleate.
Peb cov txheej txheem integrates casting thiab machining txhob txwm tshaj tawm. Rau piston twj tso kua mis lub tog raj kheej vaj tse, peb nrum lub plhaub sab hauv cov hlau hlau (ASTM A), ces nias-haum lub tshuab cobalt alloy liner. Qhov cuam tshuam haum compresses lub liner radially-tsim built-in preload uas suav cov kev ua haujlwm tensile stresses. Tsis muaj nplaum. Tsis shrink haum. Tsuas yog metallurgical synergy.
Txhua batch ua tiav tag nrho traceability: raw cov ntaub ntawv pov thawj, cov ntaub ntawv kho cua sov, CMM cov lus ceeb toom ntawm ASME Y14.5, thiab kev sim ua haujlwm kawg ntawm qhov ntsuas siab thiab ceev. Yog hais tias lub bushing tig ntawm 1,800 rpm hauv lub winch center ncej, peb tig-kuaj nws ntawm 2,200 rpm rau 30 feeb ua ntej shipping.
Thaum Yuav Qhia Txog Alloy Bushing-Thiab Thaum Tsis Tau
Xaiv cov bushings alloy thaum ib qho ntawm cov no siv:
- Ncej deflection tshaj 0.025 mm nyob rau hauv siab tshaj plaws load
- Kev ua haujlwm kub hloov pauv ntau dua 60 ° C thaum lub sijhawm ua haujlwm ib txwm ua
- Nto ceev tshaj 1.5 m / s nrog sib quas ntus lubrication
- Ib feem yuav tsum tau ASME B16.34 lossis API 6A ntawv pov thawj
Tsis txhob qhia lawv rau qhov zoo li qub, cov ntawv siv qis qis xws li ntsuas vaj huam sib luag pivots lossis phau ntawv tuav valve. Lo nrog phosphor bronze muaj. Txuag cov kev ua tau zoo ntawm qhov tseem ceeb: lub siab li qub kev caij tsheb kauj vab 12 zaug hauv ib feeb, lub hauv paus twj tso kua mis txhawb nqa 8-tuj rotating masses, los yog offshore winch shafts enduring ntsev-spray corrosion thiab poob siab loading.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. tsim cov khoom no-tsis yog cov khoom catalog, tab sis raws li kev sib txuas lus tseem ceeb. Peb validate GD&T callouts ua ntej txiav hlau. Peb chij lub kaum sab xis uas cuab cua thaum lub sij hawm casting. Peb kuaj txhua alloy bushing tiv thaiv koj cov khoom siv tiag tiag - tsis yog hlau.
Hnav thiab misalignment tsis yog yuav tsum tau zam. Lawv yog cov tsos mob ntawm cov ntaub ntawv tsis sib haum, saib tsis taus, lossis tsis raug cuam tshuam. daws lawv ntawm qhov chaw - tsis yog nrog cov sijhawm saib xyuas, tab sis nrog cov kev daws teeb meem zoo. Qhov ntawd yog li cas koj txav los ntawm kev hloov pauv mus rau qhov kev ua tau zoo uas tuaj yeem kwv yees tau.
