Common Rail Shim Measurement & Micro-Lapping Chaw Nres Tsheb - Nrog Tus Ntaus Ntshuam Dial Rau Sub-Micron Thickness Control

Nyob rau hauv cov kev tsheb ciav hlau injectors, kev hloov kho shim - nyob rau hauv qab lub valve caij nplooj ntoos hlav los yog plunger phau ntawv qhia - ncaj qha tswj lub preload ntawm lub koob tswj lub ntsiab. Lub thickness sib txawv ntawm tsuas yog 0.005 hli hloov lub sij hawm txhaj tshuaj los ntawm 0.3℃crank lub kaum sab xis thiab hloov cov roj xa los ntawm 1.5-2% ntawm tag nrho cov load. Kev ntsuas pa nrog lub micrometer handheld, thaum raug, tsis muab qhovmetrological tswv yimxav tau kev kho kev sib tsoo - yog tias lub shim yog oversize, koj yuav tsum twv seb cov khoom siv ntau npaum li cas tshem tawm thiab rov ntsuas dua. Qhov noCommon Rail Shim Measurement & Micro-Lapping Chaw nres tshebintegrates peb lub luag haujlwm tseem ceeb rau hauv ib lub platform benchtop: aprecision thickness ntsuas(nrog rau qhov ntsuas 0.001-mm dial), amicro-lapping roojnrog ib tug built-in abrasive disc, thiab alub tshuab nqus tsev ua haujlwmuas ruaj lub shim thaum ntsuas thiab sib tsoo. Lub chaw nres tsheb hloov shim hloov kho los ntawm kev sim-thiab-kev ua yuam kev mus rau ib qhokaw-loop sizing ua haujlwm, txo qhov nruab nrab hloov lub sij hawm los ntawm 12 feeb mus rau hauv 3 feeb ib shim, thaum ua tiav ib tug zaum kawg thickness kam rau ua ntawm ± 0.002 hli.

Qhov chaw nres tsheb yog acompact lub rooj zaum(300 × 250 × 180 mm, 12 kg) muaj peb modules:

1. Ntsuas Module

Granite puag phaj(200 × 150 mm, qib 00, flatness 0.002 mm) - muab qhov ruaj khov, thermally inert reference nto.

Kem thiab caj npab- Ib kab hlau tsis nruj (Ø 25 mm, 250 mm qhov siab) nrog rau counter-balanced, zawv zawg caj npab. caj npab tuav ibimported dial qhia(Mitutoyo lossis Tesa, 0-10 mm ntau, 0.001 mm kawm tiav, nrog lub tiaj tiaj tiaj) ntawm lub nrawm-tso clamp.

Shim centering jig- Lub caij nplooj ntoos hlav-loaded, peb lub puab tsaig nruab nrab ntawm lub puab tsaig uas tso lub shim ntawm tib qhov chaw rau txhua qhov kev ntsuas, tshem tawm qhov yuam kev ntawm qhov chaw tso rau sab nraud.

2. Lapping Module

Micro-lapping rooj- A 100-mm-inch, cam khwb cia hlau lapping phaj (qib GG-25, 58 HRC) nrog precision-av, tiaj tus (flatness 0.002 mm). Lub phaj yog tsav los ntawm avariable-speed lub cev muaj zog(0-300 RPM, digitally tswj) nrog rau kev sib hloov ntawm lub moos / counter-clockwise kev sib hloov.

Abrasive dispenser- Ib qho khoom siv ntsuas, plunger-type dispenser uas xa cov nqi tswj hwm ntawm pob zeb diamond muab tshuaj (3-µm lossis 6-µm, muab) rau ntawm lub phaj lapping.

Lub tshuab nqus tsev ua haujlwm- Lub tshuab nqus tsev chuck (80 × 80 mm) nrog cov hloov tau, ntxeem tau lub phaj saum toj kawg nkaus uas tuav lub shim kom ruaj khov thaum lapping, tiv thaiv nws los ntawm spinning lossis tilting nyob rau hauv kev sib tsoo.

3. Tswj thiab tso saib

Digital thickness nyeem ntawv- Lub dial qhia qhov kev nyeem ntawv yog tso tawm rau ntawm lub vijtsam loj, backlit LCD (yeem, nrog Bluetooth tso zis rau cov ntaub ntawv kaw lus). Cov zaub qhia ob qho tib si thickness thiab qhov sib txawv ntawm lub hom phiaj (neeg siv-set).

Lapping timer- Lub programmable timer (0-99 vib nas this) uas tswj lub sijhawm lapping; lub suab ceeb toom qhia txog qhov kawg ntawm lub voj voog.

Kev ua haujlwm lapping yog azoo-stop, timed processuas tshem tawm cov khoom nyob rau hauv increments ntawm 0.001-0.003 hli rau ib lub voj voog, nyob ntawm seb lub abrasive grit thiab lub lapping phaj ceev.

Standard Lapping Cycle:

Ntsuas- Muab lub shim rau ntawm qhov nruab nrab jig, txo qhov ntsuas dial, thiab sau qhov tuab. Sib piv nrog tus nqi phiaj; xam cov oversize (piv txwv li, +0.015 mm).

Lap- Muab lub shim rau ntawm lub tshuab nqus tsev chuck (pas sab hauv qab), siv lub tshuab nqus tsev kom ruaj ntseg. Teem lub sijhawm lapping (rau 0.015 mm loj, teem rau 25 vib nas this ntawm 200 RPM nrog 6-µm muab tshuaj txhuam). Pib lub phaj lapping thiab txo qis lub shim mus rau lub phaj abrasive. Lub tshuab nqus tsev chuck tuav lub shim thaum lub phaj lapping tig hauv qab nws.

Remesure- Tshem tawm lub shim, ntxuav nws nrog ib daim ntaub tsis muaj lint-dawb (kom tshem tawm cov residue abrasive), thiab ntsuas nrog lub ntsuas ntsuas.

Rov ua dua- Yog tias lub shim tseem loj dua, rov ua lub voj voog rov qab nrog lub sijhawm txo qis (piv txwv li, 10 vib nas this) thiab qhov zoo tshaj plaws abrasive (3-µm) kom ncav cuag lub hom phiaj.

Qhov chaw nres tsheblapping phajyog periodically conditioned siv apob zeb diamond hnav cuab yeej(suav nrog), uas restores lub phaj flatness thiab nto zoo nkauj. Lub phaj raug ntsuas rau 500 lub voj voog ua ntej yuav tsum tau rov ua kom txias (ib qho yooj yim, 2-feeb ua haujlwm).

Qhov taw qhia hu tuaj txawv teb tsis yog tsuas yog shim lub thickness tab sis kuj muaj ob qhov kev ntsuas ntxiv:

Parallelism- Los ntawm rotating lub shim ntawm qhov nruab nrab jig thiab nyeem ntawv ntawm plaub lub ntsiab lus (0℃, 90℃, 180℃, 270℃), tus neeg teb xov tooj tuaj yeem kuaj xyuas qhov txawv txav ntawm lub ntsej muag ntawm lub ntsej muag. Qhov sib txawv> 0.005 mm qhia tias lub shim tsis yog sib npaug thiab yuav tsum tau lapped ntawm ob sab.

Nto tiav- Lub dial indicator's anvil, thaum txo qis mus rau lub shim nrog lub zog nruab nrab, yuav pom muaj qhov tsis sib xws ntawm qhov chaw (scratches, burrs, lossis waviness) raws li qhov hloov pauv ntawm kev nyeem ntawv thaum lub sijhawm qeeb ntawm lub shim.

Qhov chaw nres tsheb suav nrog antsuas daim npavrau txhua tus shim, qhov twg tus neeg teb xov tooj sau qhov pib thickness, lub voj voog lapping, thiab qhov kawg thickness - tsim cov keeb kwm traceable rau kev tswj kom zoo.

Qhov chaw nres tsheb yog nruab nrog aMitutoyo 2109SB-10(los yog Tesa-sib npaug) dial indicator - Swiss/Japanese-manufactured, jeweled-bearing instrument with a 0-10 mm Measuring range and a 0.001 mm (1 µm) graduation. Qhov taw qhiatiaj tus anvil(Ø 6.0 hli, carbide-tipped) ua kom muaj kev sib cuag nrog lub ntsej muag, thiab nwscaij nplooj ntoos hlav-loaded plungersiv qhov rov ua tau 1.2-1.5 N quab yuam - txaus los kov yeej qhov tsis sib xws ntawm qhov tsis sib xws ntawm qhov shim. Qhov taw qhia yogshockproofthiabtiv thaiv plua plav(IP54), ua rau nws haum rau kev cob qhia siv. Adaim ntawv pov thawj calibration(tuaj yeem ua raws li ISO 17025) tau muab, txheeb xyuas qhov ntsuas qhov tseeb ntawm tsib lub ntsiab lus thoob plaws nws qhov ntau (0, 2.5, 5.0, 7.5, thiab 10.0 mm).

Q1: Qhov chaw nres tsheb no puas tuaj yeem siv rau lapping hardened shims (txog 62 HRC) yam tsis muaj kev puas tsuaj rau lub phaj lapping?
Yes. The cast iron lapping plate is designed for hardened steel. The diamond abrasive (6‑µm or 3‑µm) removes material from the shim without significantly wearing the plate. However, very hard shims (>60 HRC) yuav xav tau lub sijhawm ntev dua; peb pom zoo kom siv 6-µm muab tshuaj txhuam rau thawj zaug tshem tawm, tom qab ntawd hloov mus rau 3-µm kom tiav.

Q2: Dab tsi yog qhov tsawg kawg nkaus thickness uas kuv tuaj yeem hlais yam tsis muaj shim warping?
Shims nyias li 0.3 hli tuaj yeem lapped yam tsis muaj warping, muab lub tshuab nqus tsev chuck tuav lawv tiaj. Rau cov shims nyias nyias (tsawg dua los yog sib npaug li 0.5 hli), peb pom zoo kom txo cov phaj phaj ceev mus rau 100 RPM thiab siv cov nplua abrasive (3-µm) kom txo cov quab yuam txiav. Lub chaw nres tsheb adjustable ceev tswj tau qhov no.

Q3: Kuv yuav paub li cas thaum lub phaj lapping xav tau rov kho dua?
Thaum lub sij hawm lapping yuav tsum tau tshem tawm cov khoom siv tau nce ntau dua 20% piv rau qhov kev ua haujlwm thawj zaug, lub phaj phaj tau glazed. Siv cov cuab yeej hnav khaub ncaws pob zeb diamond kom maj mam muab cov phaj saum npoo ntawm tus ntoo khaub lig-hatch qauv; qhov no restores qhov txiav txiav. Cov cuab yeej hnav khaub ncaws suav nrog, thiab cov txheej txheem siv sijhawm tsawg dua 2 feeb.

Q4: Kuv puas tuaj yeem ntsuas shims uas tsis yog xim hlau (xws li, cov khoom sib xyaw lossis ceramic)?
Lub ntsuas ntsuas yuav siv tau rau txhua qhov chaw tiaj tus, tsis muaj qhov ntxeem tau. Txawm li cas los xij, lub lapping module yog tsim los rau cov hlau shims nkaus xwb - ceramic los yog cov ntaub ntawv sib xyaw yuav tsum tau tshwj xeeb cov khoom sib tsoo. Lub chaw nres tsheb lub tshuab nqus tsev chuck yuav tsis tuav cov khoom tsis yog xim hlau kom ruaj ntseg; Yog tias xav tau, peb pom zoo kom muaj kev sib koom ua ke rau cov khoom siv zoo li no.

Q5: Dab tsi yog qhov tseeb ntawm qhov ntsuas thickness piv rau digital micrometer?
Lub dial qhia qhov tseeb (± 0.002 mm) thiab granite puag phaj flatness (0.002 mm) ua ke los muab qhov ntsuas tsis meej ntawm ± 0.003 mm - piv rau cov micrometer zoo. Txawm li cas los xij, qhov chaw nres tsheb qhov txiaj ntsig tseem ceeb yog kev koom ua ke nrog cov txheej txheem lapping: lub shim yog ntsuas, lapped, thiab rov ntsuas dua yam tsis tau tshem tawm ntawm qhov chaw nres tsheb, tshem tawm cov kev tuav yuam kev uas tshwm sim thaum tsiv ntawm lub micrometer thiab lub tshuab lapping.

Q6: Lub chaw nres tsheb lapping phaj yog 100 hli inch - Kuv puas tuaj yeem lap ntau shims tib lub sijhawm?
Qhov chaw nres tsheb yog tsim los rau ib leeg-shim lapping kom paub meej meej thickness tswj. Txawm li cas los xij, rau kev ua batch (piv txwv li, lapping ib txheej ntawm rau qhov kev txhaj tshuaj shims rau tib lub thickness), koj tuaj yeem lap lawv ua ntu zus - qhov chaw nres tsheb qhov programmable timer thiab lub tshuab nqus tsev chuck tso cai nrawm, rov ua dua. Lub sijhawm teeb tsa ntawm shims yog nyob rau hauv 30 vib nas this.

 

Txhawm rau ua kom koj qhov kev yuav khoom tau yooj yim thiab yooj yim, peb muab ntau yam kev xaiv them nyiaj ruaj ntseg:

Peb nyob ntawm no los ua kom koj cov txheej txheem xaj kev txhawj xeeb-dawb - xaiv txoj kev them nyiaj uas ua haujlwm zoo tshaj rau koj!

 

 

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