Materials Science: Lub Pob Zeb ntawm Pwm Lub Neej
Preform pwm ua haujlwm nyob rau hauv ib puag ncig hnyav heev: kev txhaj tshuaj kub tuaj yeem ncav cuag 280 degree, siab tshaj 150MPa, thiab lawv yuav tsum tiv taus ntau lub voj voog thermal ib feeb. Yog li ntawd, xaiv cov khoom pwm yuav tsum sib npaug zog, toughness, thermal stability, thiab qaug zog kuj.
Tam sim no, cov pwm pwm feem ntau siv ua ntej- cov yas pwm tawv steels (xws li P20 thiab 718H), uas nws cov tawv tawv tsis sib xws (HRC30-34) zam kev kho cua sov deformation thiab ua kom cov kab noj hniav seem ruaj khov. Rau ultra-kev kub ceev txhaj tshuaj molding (lub sij hawm voj voog <3 vib nas this), maraging steels (xws li 18Ni300) yuav tsum. Cov hlau no ua tiav qhov hardness ntawm HRC50 los yog siab dua los ntawm nag lossis daus hardening kev kho mob thaum tswj kev ua haujlwm zoo polishing, uas ua rau lub preform nto tiav ntawm Ra 0.2μm lossis tsawg dua.
Structural Innovation: Los ntawm Khiav Tsim Kom Txias Optimization
Cov qauv tsim ntawm preform pwm yog ib qho "art of balance." Lub tshuab hluav taws xob kub khiav, siv lub valve- hom rooj vag los tswj cov dej ntws tawm, tuaj yeem tshem tawm cov kab khiav txias thiab cov kab vuam, txhim kho qhov pom tseeb ntawm ntau dua 5%. Rau ntau- kab noj hniav pwm (xws li 96 kab noj hniav), kev sib tw khiav tshuab yuav tsum xyuas kom meej tias lub sij hawm sib txawv ntawm txhua qhov kab noj hniav yog<0.05 seconds; otherwise, excessive preform weight fluctuations will occur.
Lub tshuab cua txias yog qhov tseem ceeb rau kev tsim khoom. Conformal Cooling, siv 3D tshuab luam ntawv, tsim cov cua txias hauv pwm uas ua raws li kab noj hniav contour, txo lub sij hawm txias los ntawm 40% thiab txhim kho qhov kub thiab txias los ntawm 25%. Ib qho kev tshawb fawb pom tau hais tias 64-kab kab noj hniav pwm siv cov cuab yeej no tau nce txhua hnub tawm los ntawm 120,000 lub raj mis mus rau 180,000 lub raj mis, thaum txo kev siv hluav taws xob los ntawm 18%.
Txheej Txheem Ua Haujlwm: Ultra-Precision Machining thiab Surface Treatment
Cov kab noj hniav machining qhov tseeb ntawm cov pwm pwm yuav tsum ncav cuag ± 0.002mm, uas tso siab rau kev sib xyaw ua ke ntawm tsib -axis siab- nrawm machining chaw (ceev ntau dua lossis sib npaug li 20,000rpm) thiab pob zeb diamond-coated tej cuab yeej. Daim iav polishing (Ra < 0.05μm) tsis tsuas yog txo cov kev sib txhuam ntawm cov yas molten, tab sis kuj tiv thaiv "nyiaj streaks" ntawm lub preform nto.
Kev kho deg tshuab yog qhov tseem ceeb sib npaug. TD kev kho mob (molten ntsev infiltration) tsim ib txheej tungsten carbide ob peb micrometers tuab ntawm cov pwm nto, nce hnav tsis kam los ntawm 5 zaug; thaum lub pob zeb diamond-zoo li cov pa roj carbon (DLC) txheej ua ke nrog cov coefficient qis ntawm kev sib txhuam nrog cov tshuaj lom neeg ruaj khov, ua rau nws tsim tshwj xeeb rau kev tsim cov co- txhaj tshuaj preform pwm nrog cov txheej txheem thaiv.
Kev Tswj Xyuas Zoo: Los ntawm Thawj Tshooj Kev Tshawb Fawb mus rau tag nrho Lifecycle Traceability
Niaj hnub nimno preform pwm ntau lawm tau tsim kom muaj kev tswj xyuas zoo. Thawj tsab xov xwm tshuaj xyuas siv lub tshuab ntsuas kev sib koom tes (CMM) thiab lub tshuab ntsuas qhov muag txhawm rau txheeb xyuas cov kab noj hniav qhov ntev thiab qhov tseeb ntawm txhua qhov ntev. Thaum lub sij hawm tsim khoom, ib qho kev soj ntsuam hauv online saib xyuas qhov hnyav thiab cov phab ntsa tuab hauv lub sijhawm siv infrared sensors, thiab cov ntaub ntawv raug xa ncaj qha mus rau MES system rau kev ua tau zoo thiab kev ua kom zoo.
Qhov "micrometer-level" precision tswj qhov kawg no txhais ua kev sib tw khoom zoo dua qub. Cov ntaub ntawv qhia tau hais tias PET lub raj mis uas tsim los siv cov pwm pwm tuaj yeem muaj 15% siab dua compressive zog thiab 30% txo qis tus nqi tawg, txuag cov khoom lag luam tseem ceeb tom qab- cov nqi muag.