M11 Tswj Valve Lub Rooj Lapping Tool - Precision Resurfacing Rau Cummins Injector Control Valves, Restoring Sealing Geometry Rau Sub-Micron Flatness

Nyob rau hauv Cummins M11 common-rail injector, lub rooj zaum tswj valve yog tus neeg saib xyuas ntawm tus tsav thiab qhov tseeb txhaj tshuaj. Lub rooj zaum saum npoo uas deviates los ntawm nws thawj lub khob hliav qab los ntawm tsuas yog 0.02 hli tsub kom lub valve nqa hysteresis, ua rau cov tshuaj kom muaj nuj nqis los ntawm ± 3 mg / stroke ntawm lub tog raj kheej. Qhov kev tsis sib haum no txhais tau hais tias tsis muaj zog, ua kom muaj pa taws ua kom pom tseeb, thiab ntsuas qhov poob qis hauv qhov siab tshaj plaws torque - feem ntau kuaj pom tias yog qhov tsis raug ECU lossis hnav plunger. M11 tswj lub rooj zaum lapping cuab yeej yog tsim los kho dua tshiab qhov tseem ceeb sealing interface yam tsis tau hloov tag nrho lub valve los ua ke, rov qab kho qhov qub geometric kev sib raug zoo ntawm lub pob valve thiab lub rooj zaum ntawm ib feem ntawm tus nqi hloov. Tsis zoo li cov khoom siv dav dav, cov cuab yeej no tuav lub kaum sab xis (feem ntau yog 60℃lossis 90℃nyob ntawm qhov sib txawv ntawm lub valve) thiab ua kom muaj kev sib haum xeeb mus rau hauv 0.005 hli, tshem tawm qhov "tes-xav" kwv yees uas plagues phau ntawv lapping.

Cov cuab yeej lapping no yog qhov tshwj xeeb rau cov tswj valve siv hauv:

Cummins M11(ISL 8.9L, ISM 10.8L, QSM 11L) - ob qho tib si mechanical thiab common-rail iterations (2000-2015)

Cummins N14(xaiv cov qauv nrog Bosch / CELECT ™ tswj li qub)

Cummins L10(nrog lub tes tsho adapter rau lub qia me me)

Industrial C8.3 thiab C10cav siv tib lub valve tsev neeg

Cov cuab yeej muaj xws li peb qhov kev sib pauv hloov tau cov kev taw qhia uas phim cov tswj valve qhia bore diameters:5.98mm, 6.02mm, thiab 6.05mm- npog qhov kam rau ua ntau yam ntawm kev tsim khoom thiab kev pabcuam-hnav bores. Txhua phau ntawv qhia yog case-hardened (60 HRC) thiab hauv av mus rau ib qho concentricity ntawm<2 µm to prevent ovality transfer during the lapping stroke.

✔ Lub dual-grit lapping lub taub hau tso cai rau ob-theem txheej txheem: ntxhib (150 grit) rau tshem tawm cov pits thiab khawb tob dua 15 µm, ua raws li kev nplua (600 grit) rau polishing zaum kawg. Lub cuab yeej ua-nyob rau hauv lub caij nplooj ntoos hlav-loaded siab limiter tiv thaiv kev sib tsoo, uas yuav nthuav dav lub sealing band tshaj qhov tau teev tseg 0.6 - 0.8 hli dav

Q1: Kuv puas tuaj yeem siv cov cuab yeej lapping no ntawm kev tswj cov khoom siv los ntawm lwm lub npe (xws li Bosch CP3 lossis Delphi)?
Cov cuab yeej yog dimensioned rau Cummins M11-style li qub nrog tus qauv 6 hli qhia bore thiab 60℃lub rooj zaum. Rau lwm hom, peb muab adapters (muag nyias) - thov sab laj nrog peb daim ntawv haum. Siv cov cuab yeej no rau ntawm qhov tsis sib xws yuav ua rau lub rooj zaum geometry puas.

Q2: Kuv yuav ua li cas thiaj paub thaum lub lapping ua tiav yam tsis tau tshem lub valve ntawm lub tshuab?
Koj tuaj yeem ua "blue check" - siv ib txheej nyias ntawm Prussian xiav rau lub pob valve, zaum nws maj mam, ces tshem tawm. Ib qho tag nrho, txawm tias lub nplhaib xiav hloov mus rau tag nrho lub rooj dav dav qhia tias ua tiav lapping. Yog hais tias lub nplhaib tawg los yog tsis sib xws, txuas ntxiv lapping nyob rau hauv luv luv.

Q3: Kuv yuav tsum siv grit li cas rau lub rooj sib sib zog nqus (pom qhov yaig> 0.02 hli)?
Pib nrog lub taub hau ntxhib nkaus xwb - tsis txhob hla mus kom zoo. Rau pitting hnyav, koj yuav tsum tau lapped rau 2-3 feeb nrog ntxhib, ntxuav thiab rov ua dua cov khoom siv txhua 30 vib nas this. Thaum cov pits ploj mus, hloov mus rau qhov zoo rau qhov kawg polish.

Q4: Kuv puas tuaj yeem siv lub tshuab fais fab nrog lub laum lossis lub tshuab pneumatic?
Yog lawm, tab sis peb pom zoo kom siv qhov qis-ceev (tsawg dua lossis sib npaug li 150 rpm) thim rov qab laum nrog lub torque limiter teem rau 2 Nm. Kev nrawm dua ua kom muaj cua sov ntau dhau, uas tuaj yeem ua rau cov khoom siv ntawm lub valve thiab hloov lub rooj hardness. Phau ntawv lapping yog kev nyab xeeb dua rau cov pib tshiab.

Q5: Kuv yuav tsum hloov lub taub hau li cas?
Cov pob zeb diamond txheej feem ntau kav ntev txog 500-600 lub rooj zaum hauv lub rooj zaum thaum siv nrog kev ua kom zoo thiab tu. Qhov pom kev pom ntawm hnav yog ci ntsa iab, glazed nto - qhov no qhia tias pob zeb diamond tau dulled. Hloov lub taub hau thaum koj pom lub sijhawm lapping nce ntau dua 50% rau tib lub rooj zaum.

Q6: Puas yog lapping hloov qhov tswj valve qhov qhib siab?
Lapping me ntsis txo lub rooj qhov siab (txog 0.015 hli), uas ua rau kom lub valve caij nplooj ntoos hlav preload los ntawm kwv yees li 2-3%. Qhov no yog nyob rau hauv ECU qhov kev hloov pauv ntau yam thiab tsis tas yuav rov ua dua. Txawm li cas los xij, yog tias koj laps ntau dua 0.03 hli tag nrho cov khoom, koj yuav tsum rov ua lub caij nplooj ntoos hlav kom rov ua kom lub npe qhib siab - peb muab lub tshuab xam zauv shim hauv cov cuab yeej phau ntawv.

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:

Hloov txhab nyiaj

Txhawb ntau yam txiaj ntsig thiab kev them nyiaj hauv tuam txhab.

Western Union

Kev hloov nyiaj sai thiab thoob ntiaj teb.

PayPal

Kev nyab xeeb thiab yooj yim them nyiaj online.

Alibaba

Txaus siab rau kev tiv thaiv ntxiv nrog kev ntseeg siab Alibaba kev lag luam.

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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