Plhaub molding casting muab precision, repeatability, thiab nto tiav unmatched los ntawm cov pa xuab zeb casting-tshwj xeeb tshaj yog rau nruab nrab-complexity, high-volume Cheebtsam xws li hydraulic valve lub cev, twj tso kua mis vaj tse, thiab winch shafts. Peb tau tsim ntau tshaj 12,000 plhaub-moulded hlau thiab hlau castings nyob rau hauv peb lub xyoos dhau los ib leeg-feem ntau nyob rau hauv ± 0.15 hli qhov ntev kam rau ua thiab Ra 3.2 µm as-cam khwb cia nto. Qhov no tsis yog theoretical. Nws yog dab tsi tshwm sim thaum koj muab phenolic resin chemistry, tswj cov tub ntxhais-lub thawv kub, thiab lub sij hawm ntawm lub plhaub tuab xyuas ntawm lub khw hauv pem teb.
Kauj Ruam 1: Kev Npaj Qauv - Precision Pib Nrog Tus Xib Hwb
Peb siv cov hlau tawv tawv lossis txhuas cov qauv - tsis txhob ntoo lossis cov hlau tsis tshua muaj - rau lub plhaub molding. Vim li cas? Vim tias tus qauv lub neej ncaj qha tswj tus nqi ib feem ntawm qhov ntim siab tshaj 500 units. Peb cov qauv muaj xws li cov duab kos duab meej (0.5°–1.5°), qhov cua grooves tsis nqaim tshaj 0.8 hli, thiab kev sib xyaw ua ke cov yam ntxwv uas tshem tawm cov kev sib tw khiav. Txhua tus qauv tau lees paub CMM pov thawj rau cov neeg siv khoom GD&T ua ntej siv thawj zaug. Qee cov neeg siv khoom xa tuaj rau peb 3D-luam qauv qauv rau kev sim ua haujlwm - tab sis peb yeej tsis pov los ntawm lawv. Thermal expansion mismatch ntawm cov luam ntawv cob thiab molten hlau ua rau unpredictable warpage nyob rau hauv lub plhaub.
Kauj Ruam 2: Plhaub Tsim - Thaum tshav kub kub, resin, thiab sij hawm tsis sib tham
Cov qauv yog preheated rau 220-250 ° C. txias dhau lawm? Ua tsis tiav resin curing. Kub dhau lawm? Ua ntej decomposition thiab roj tsis xws luag. Peb txheej nws nrog nplua silica xuab zeb (40-100 mesh) tov nrog 2.5-5% thermosetting phenolic resin. Cov qauv coated rotates hauv ib lub thawv pov tseg rau 10-20 vib nas this-tsuas yog ntev txaus rau ib lub plhaub 6-12 hli los tsim. Tom qab ntawd nws yog inverted thiab ci ntawm 380-420 ° C rau 2-4 feeb. Qhov kawg ci crosslinks cov resin tag nrho. Hla nws, thiab lub plhaub crumbles thaum sib dhos pwm. Peb saib xyuas qhov cub kub txhua txhua 90 vib nas this uas siv cov ntsuas kub ntsuas ntsuas-tsis yog kev nyeem ntawv ambient.
Kauj Ruam 3: Pwm los ua ke - Alignment Dictates Dimensional Stability
Ob lub plhaub ib nrab yog glued nrog kub-activated phenolic nplaum los yog mechanically pinned. Tsis muaj av nplaum, tsis muaj ntsia hlau, tsis muaj daim kab xev. Misalignment ntawm txawm tias 0.3 hli qhia tau tias yog flash ntawm qhov chaw siab-zoo li lub tog raj kheej flanges los yog lub rooj zaum hauv av. Rau asymmetrical qhov chaw, peb siv dowel pins nrog ± 0.01 hli txoj hauj lwm kam rau ua. Ua ntej nchuav, txhua cov pwm sib dhos dhau los ntawm qhov chaw kho qhov muag kho qhov muag. Yog hais tias qhov sib txawv ntawm ib nrab siab tshaj 0.1 hli ntawm txhua qhov chaw, nws tau muab pov tseg - tsis rov ua haujlwm dua. Reassembly qhia txog kev ua yuam kev.
Kauj Ruam 4: Pouring thiab Solidification - Tswj Flow tiv thaiv kev kub ntxhov
- Pour kub yog tuav nyob rau hauv ± 15 ° C ntawm qhov zoo tshaj plaws-piv txwv li, 1,420-1,450 ° C rau ASTM A126 Class B grey hlau
- Hlau nkag los ntawm qhov rooj hauv qab kom txo qis oxide entrapment
- Cog tawm tshwm sim 15-25 feeb tom qab ncuav-sijhawm rau ib ntu tuab, tsis yog lub sijhawm teev
- Tsis yuam kom txias. Ceev ceev quenching tawg plhaub thiab induces residual kev nyuaj siab nyob rau hauv nyias-walled vaj tse
Peb ib zaug nchuav 48 zoo tib yam piston twj tso kua mis lub tog raj kheej nyob hauv ib lub tshav kub. Rau pom tias micro-shrink nyob rau hauv lub valve chaw nres nkoj recess. Hauv paus ua rau? Ib tug 7 ° C poob rau hauv lub ladle kub thaum lub sij hawm kawg 12 ncuav. Tam sim no peb teev ncuav temp rau txhua tus pwm - thiab tsis lees txais ib qho kev sib txawv ntawm qhov sib txawv tshaj ± 10 ° C.
Kauj Ruam 5: Tom qab Casting Handling - Qhov Chaw Ncaj Ncees Ntog Tau Txais lossis Poob
Plhaub molding muab ze-net zoo-tab sis tsis zoo li net. Qhov tseem ceeb sealing nto tseem xav tau CNC machining. Tias yog vim li cas peb integrate casting thiab machining nyob rau hauv ib lub ru tsev. Peb cov hlau castings ncaj nraim los ntawm shakeout mus rau kab rov tav machining chaw-tsis muaj nruab nrab cia. Vim li cas? Kev nqus dej noo rau hauv qhov ntxeem tau ua rau hydrogen pinholes thaum kho cua sov tom ntej. Peb kuj tsis txhob tua blasting ntawm qhov chaw destined rau AMS 5387-tshaj daim ntawv thov; angular media puas tsuaj rau qhov ze-nto grain qauv uas xav tau rau qaug zog tiv thaiv nyob rau hauv cobalt-alloy twj twj tso kua mis.
Plhaub molding casting excels qhov twg xuab zeb casting tsis sib xws thiab peev casting hom pob nyiaj siv - feem ntau yog rau qhov hnyav ntawm 0.5 kg txog 50 kg, txhua xyoo ntim ntawm 1,000 txog 50,000 units, thiab cov ntaub ntawv suav nrog cov hlau, carbon steel, stainless hlau, thiab nickel-tiv taus alloys. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb kho lub plhaub molding tsis yog ib qho txheej txheem tab sis raws li ib qho ntawm qhov tseeb casting-machining-finishing voj. Txhua lub plhaub-moulded tivthaiv peb nkoj nqa tag nrho cov khoom traceability, CMM-certified qhov ntev, thiab cov ntaub ntawv thermal keeb kwm-los ntawm cov qauv ci mus rau qhov kawg kev ntxhov siab. Qhov ntawd yog li cas lub siab li qub muaj sia nyob 20,000 PSI cycles. Qhov ntawd yog li cas winch shaft rollers tswj kev khiav qis dua 0.02 hli tom qab 10,000 teev. Precision tsis ua tiav hauv ib kauj ruam. Nws yog xauv hauv-ib kauj ruam.
