Thaum koj tab tom nrhiav tus brakes tswv lub tog raj kheej, lub tog raj kheej lub tog raj kheej, lossis clutch hydraulics, kev kho saum npoo tsis yog qhov zoo nkaus li. Nws cuam tshuam ncaj qha rau kev tiv thaiv corrosion, hnav lub neej, kev ua haujlwm foob, thiab yuav ua li cas cov khoom tuav raws li qhov tiag - lub ntiaj teb no.
Cov ntaub ntawv sib txawv-aluminium alloys, grey cam khwb cia hlau, thiab steel-yuav tsum tau muaj kev kho mob sib txawv. Thiab tib txoj kev kho mob siv rau cov khoom tsis raug tuaj yeem ua rau tsis ua tiav ntxov.
Phau ntawv qhia no piav qhia txog cov txheej txheem kev kho saum npoo tseem ceeb uas siv hauv hydraulic brake tivthaiv tsim, txhua tus ua dab tsi, thiab vim li cas qhov kev xaiv tseem ceeb.
Vim li cas Nto Kho Qhov Teeb Meem rau Nres Cheeb Tsam
Lub tog raj kheej nres ua haujlwm hauv qhov chaw hnyav. Lawv raug rau:
- Nres kua(DOT3, DOT4, DOT5.1) - tshuaj lom neeg nruj heev
- Kub siab heev– txij thaum txias pib mus rau siab -kub braking
- Txoj kev ntsev, noo noo, thiab khib nyiab- corrosion kuj
- Tsis tu ncua mechanical kev sib txhuam- pistons txav tawm ntawm lub tog raj kheej bores
Yog tias tsis muaj kev kho kom zoo, ib qho txhuas piston yuav hnav tawm hauv lub lis piam. Lub cev lub tog raj kheej hlau yuav xeb hauv hnub. Cov ntsaws ruaj ruaj yuav ua tsis tiav. Qhov chaw yuav xau.
Txoj kev kho saum npoo zoo txuas ntxiv kev pab cuam lub neej, tswj kev ncaj ncees ntawm hydraulic, thiab tiv thaiv cov nqi rov qab.
Aluminium Cheebtsam: Anodizing
Aluminium yog cov khoom siv ntau tshaj plaws rau lub tog raj kheej lub tog raj kheej, lub tog raj kheej lub tog raj kheej, thiab lub tog raj kheej clutch. Tab sis raw aluminium yog mos thiab corrosion-nrawm. Anodizing daws ob qho teeb meem.
Ntuj (Clear) Anodizing - Hom II
Nws yog dab tsi:Cov txheej txheem electrochemical uas tsim cov pob tshab 5-15μm oxide txheej rau ntawm txhuas nto. Lub txheej yog kaw tom qab kaw lub microscopic pores
Qhov twg nws siv:
- Sab nrauv ntawm aluminium brakes thiab clutch cylinders
- Cheebtsam qhov twg OEM -zoo li yuav tsum tau
- Cov khoom uas xav tau laser npav lossis luam ntawv tom qab kho
Cov yam ntxwv tseem ceeb:
- Nyiaj - grey metallic tsos - phim cov khoom qub tiav
- Nruab nrab corrosion kuj (200-400 teev ntsev tsuag)
- Nto hardness nyob ib ncig ntawm HV 150-200
- Tsis hloov qhov loj me
- Tus nqi qis dua nyuaj anodizing
Visual identification:Nyiaj-grey nrog ib nrab-gloss tiav, zoo li lub siab-kawg aluminium laptop. Me ntsis "grippy" rau qhov kov. Tsis yog -conductive – ib tug multimeter yuav qhia tsis muaj txuas ntxiv.
Hard Anodizing - Hom III
Nws yog dab tsi:Ib qho kev txhoj puab heev ntawm anodizing, ua ntawm qhov kub thiab txias (-5℃rau +5℃) nrog rau tam sim no ntau dua. Qhov tshwm sim yog ntau tuab 25-50μm (txog 100μm) ceramic zoo li oxide txheej
Qhov twg nws siv:
- Pistons- cov khoom txav txav uas yuav tsum muaj kev sib txhuam tas li
- Lub tog raj kheej bores- qhov chaw lub piston swb tawm tsam
- Heavy-cov haujlwm thiab daim ntawv thov tsheb ua lag luam
- Txhua yam khoom siv aluminium raug hnav
Cov yam ntxwv tseem ceeb:
- Tsaus grey rau dav hlau dub tsos - qhov tsaus, lub thicker txheej
- HV 350-500 hardness - ncav cuag cov hlau
- Kev hnav zoo heev - ncua lub neej ntawm piston
- Zoo corrosion kuj
- Dimensionally thicker - machining yuav tsum suav rau 10-25μm ib sab
Visual identification:Sib sib zog nqus dub, tag nrho matte (zero gloss). Xav zoo li ceramic lossis polished pob zeb. Tus ntiv tes yuav tsis khawb nws.
Txoj cai ceev:Qhov tsaus thiab ntau matte dub tiav ntawm ib qho txhuas piston, qhov zoo dua qhov nyuaj anodizing. Sib sib zog nqus dub nrog xoom gloss=zoo.
Hlau Cheebtsam: E-coat thiab Dacromet
Grey cam khwb cia hlau (HT250) tseem siv dav rau lub tog raj kheej nres, tshwj xeeb tshaj yog nyob rau hauv kev lag luam thiab hnyav- daim ntawv thov. Hlau rusts sai sai hauv cov av noo - feem ntau nyob rau hauv 24 teev tom qab raug. Kev kho deg tsis yog xaiv tau.
Electrophoretic Txheej (E-coat)
Nws yog dab tsi:Cov txheej txheem txheej txheej txheej txheej txheej txheej hlau uas cov hlau tau muab tso rau hauv dej -raws li da dej. Ib qho hluav taws xob tso cov txheej txheem sib npaug ntawm txhua qhov chaw - suav nrog cov xov sab hauv, qhov qhov muag tsis pom, thiab cov chaw so uas cov xim pleev xim tsis tuaj yeem ncav cuag. Tom qab ntawd lub coated ib feem yog ci ntawm 180-200℃los kho cov xim.
Electrophoretic Txheej (E-coat)
| TIAB SA 124527 |
| 47520-F1010 |
| 8-94447-208-0 |
Qhov twg nws siv:
- Sab nrauv ntawm hlau nres tus tswv lub tog raj kheej thiab lub tog raj kheej log
- Hlau proportional valve lub cev
- Hlau clutch cylinders
- Txhua yam khoom siv hlau xav tau kev tiv thaiv kev tiv thaiv corrosion tag nrho
Cov yam ntxwv tseem ceeb:
- Uniform dub txheej, semi-gloss tiav
- 15-25μm zaj duab xis thickness
- 400-600 xuab moos ntsev tsuag kuj
- Npog cov xov sab hauv thiab qhov muag tsis pom qhov - tsis muaj qhov tsis pom
- Resistant brake fluids, diesel, thiab lwm yam automotive kua
Visual identification:Ntshiab dub nrog ib tug pom ib nrab -gloss sheen (xws li automotive xim tab sis me ntsis duller). Yooj yim rau kov. Ib tug ntiv tes yuav tawm ib qho faint kos. Cov txheej yog pom nyob rau hauv threaded qhov - yog li koj paub tias nws yog E-coat, tsis tsuag xim.
Dacromet (Zinc-Aluminium Flake Txheej)
Nws yog dab tsi:Cov dej-raws li txheej uas muaj zinc thiab txhuas flakes hauv chromate binder. Siv los ntawm dip-spin los yog tshuaj tsuag, tom qab ntawd kho ntawm 300℃. Qhov tshwm sim yog 4-8μm nyiaj-grey txheej txheej
Dacromet (Zinc-Aluminium Flake Txheej)
| 47201-42360 |
| 8-97946-626-1 |
| 47207-26010 |
Dacromet muab kev tiv thaiv triple:
- Lub cev barrier- overlapping flakes tsim lub labyrinth uas thaiv txoj kev corrosion
- Kev tiv thaiv kev txi- zinc corrodes ua ntej, tiv thaiv lub hauv paus hlau
- Passivation- cov chromate binder tsim cov txheej txheem tshuaj lom neeg ruaj khov
Qhov twg nws siv:
- Hlau lub tog raj kheej lub cev (kev xaiv hloov kho dua E-coat)
- High - lub zog fasteners thiab bolts (10.9 thiab 12.9 qib)
- Springs thiab caij nplooj ntoos hlav clips (zero hydrogen embrittlement risk)
- Cheebtsam raug kub siab (txog 300 degree)
- Cov khoom xa tuaj rau siab - thaj chaw muaj ntsev (cov cheeb tsam ntug dej hiav txwv, cov teb chaws Islands tuaj)
Cov yam ntxwv tseem ceeb:
- 1000+ teev ntsev tsuag tshuaj tiv thaiv - kwv yees li ob npaug ntawm E-coat
- Zero hydrogen embrittlement - muaj kev nyab xeeb rau siab -lub zog steel
- Withstands 300℃kev ua haujlwm tsis tu ncua
- Nyiaj -grey, tag nrho matte tiav
- Cov tawv tawv qis dua E-coat - khawb yooj yim dua
Visual identification:Nyiaj -grey matte tiav nrog kev ntxhib los mos zoo nkauj. Zoo li cov ntawv xuab zeb zoo tab sis smoother rau qhov kov. Tsis muaj gloss txhua yam. Ntawm cov khoom siv hlau, nyiaj -grey + matte=Dacromet; nyiaj- dawb + glossy=zinc plating.
| Feature | Dacromet | E-cov | Zinc Plating |
| ntsev tsuag kuj | 1000+ teev | 400-600 teev | 72-200 hnub |
| Kub tiv taus | 300 degree | 180℃(kho qhov txwv) | 100℃(tws) |
| Hydrogen embrittlement txaus ntshai | Zero | Zero | Tam sim no (tsis muaj kev nyab xeeb rau siab -lub zog steel) |
| Xim | Nyiaj -grey matte | Dub semi{0}}gloss | Silver-white/blue-white |
| Kev pab them nqi | Zoo heev (dip process) | Zoo heev (electric field) | Poor (qhov tob tsis phaj) |
| Nqi | Nruab nrab-siab | Nruab nrab | Tsawg |
| Ib puag ncig | Tsawg VOC, RoHS xaiv | Tsawg VOC, dej -raws li | Muaj Cr6+ pov tseg |
Lwm Cov Kev Kho Hniav
Sandblasting (Abrasive Blasting)
Nws yog dab tsi:Siab - cua siab (0.4-0.8 MPa) propels abrasive media (iav hlaws, txhuas oxide, thiab lwm yam) ntawm cov khoom nto kom tshem tawm cov nplais, oxides, thiab burrs. Tsim ib qho kev ntxhib los mos matte.
Qhov twg nws siv:
- Ua ntej- kho ua ntej anodizing lossis txheej
- Tshem tawm cov txheej qub los ntawm cov khoom xa rov qab
- Tsim ib qho chaw zoo ib yam rau laser npav
Visual identification:Uniform matte silver -grey, kiag li tsis yog -reflective. Zoo li 400-600 grit sandpaper. Cov ntawv ntiv tes yuav qhia meej meej ntawm cov xuab zeb-tsuas yog qhov chaw.
Chromate Conversion Txheej
Nws yog dab tsi:Cov txheej txheem tshuaj dip uas tsim cov sub-micron conversion txheej ntawm txhuas. Tsis hloov qhov ntev. Tsis cuam tshuam conductivity.
Qhov twg nws siv:
- Sab hauv thiab nyuaj - mus rau - mus txog thaj chaw uas anodizing yuav tsis nkag mus
- Kev tiv thaiv corrosion ib ntus ua ntej ua haujlwm ntxiv
- Adhesion puag rau adhesives los yog sealants
Visual identification:Zaj sawv kub los yog yellowish tint. Tig ib feem nyob rau hauv lub teeb thiab koj yuav pom iridescent xim hloov - qhov no yog kos npe ntawm chromate hloov dua siab tshiab.
Dub Oxide (Bluing)
Nws yog dab tsi:Cov txheej txheem kub caustic oxidation (140-150 degree) uas tsim 1-2μm Fe₃O₄ (magnetite) zaj duab xis ntawm hlau. Yooj yim heev - yuav luag tsis muaj qhov hloov pauv. Corrosion kuj yog tsawg.
Qhov twg nws siv:
- Tsawg tshaj plaws - nqi luv - lub sij hawm tiv thaiv xeb (khoom muag / kev tiv thaiv kev thauj mus los)
- Cov khoom yuav tsum tau hloov pauv qhov zero
- Kho kom zoo nkauj matte dub tiav
Visual identification:Ntshiab dub, kiag li matte, nyias nyias. Ib tug yuam sij yuav khawb mus rau liab qab hlau tam sim ntawd. Yog tias nws khawb tau yooj yim thiab nthuav tawm cov hlau grey hauv qab, nws yog cov oxide dub - tsis yog E-coat.
Zinc Plating + Passivation
Nws yog dab tsi:Electroplated zinc txheej (5-15μm) nrog trivalent chromate passivation topcoat. Zinc corrodes sacrificially los tiv thaiv lub hauv paus steel.
Qhov twg nws siv:
- Tsawg- lub zog fasteners (Qib 8.8 thiab hauv qab)
- Brackets, mounting hardware, washers
- Tsis yog -txhawb cov khoom siv sab nraud
Ceeb toom tseem ceeb:Zinc plating qhia txog kev pheej hmoo ntawm hydrogen embrittlement. Hydrogen atoms nkag mus rau hauv cov hlau nplej thaum lub sij hawm electroplating, uas tuaj yeem ua rau cov pob txha tawg tam sim ntawd.Tsis txhob qhia zinc plating rau siab-cov kabmob lub tog raj kheej lossis siab - lub zog fasteners.
Visual identification:Nyiaj-dawb lossis xiav-dawb nrog pom xim hlau gloss. Saib ze thiab koj yuav pom zoo "snowflake" siv lead ua qauv. Xiav-dawb + glossy=zinc plating.
Electroless Nickel plating
Nws yog dab tsi:Cov txheej txheem autocatalytic chemical deposition - tsis muaj hluav taws xob xav tau. Deposits ib txheej npib tsib xee-phosphorus alloy txheej (5-25μm) rau txhua qhov chaw, suav nrog qhov tob qhov muag tsis pom.
Qhov twg nws siv:
- Premium aluminium brake cylinders (cov neeg siv khoom- qhia)
- Ib puag ncig corrosion heev (marine, hnyav ntsev raug)
- Aluminium lub tog raj kheej bores (alternative to hard anodizing)
Visual identification:Semi-paj nyiaj-dawb nrog cov xim daj daj (nickel lub ntuj xim). Nws zoo nkaus li du thiab nplua, zoo li stainless hlau.
Daim Ntawv Qhia Kev Xaiv: Yam Kev Kho Mob rau Yam Khoom Uas Muaj?
-
Aluminium Brake Master Lub tog raj kheej
| Cheeb Tsam Cheeb Tsam | Pom zoo kho | Txhim kho kev xaiv |
|---|---|---|
| Piston | Hard anodizing (yuav tsum tau) | - |
| Lub tog raj kheej bore | Hard anodizing | Electroless npib tsib xee |
| Sab nrauv lub cev | Sandblasting + natural anodizing | Hard anodizing (hnyav-lub luag haujlwm) |
| Sab hauv kab | Kev hloov pauv ntawm chromate | - |
-
Hlau Nres Master Lub tog raj kheej
| Cheeb Tsam Cheeb Tsam | Pom zoo kho | Txhim kho kev xaiv |
|---|---|---|
| Piston | Hard chrome (steel piston) | - |
| Lub tog raj kheej bore | Phosphating + roj | - |
| Sab nrauv lub cev | E-cov | Dacromet (siab salinity) |
| Fasteners | Dacromet (Qib 10.9+) | Zinc plating (Qib 8.8-) |
-
Nres lub tog raj kheej (Aluminium)
| Cheeb Tsam Cheeb Tsam | Pom zoo kho |
|---|---|
| Piston | Hard anodizing |
| Lub tog raj kheej bore | Hard anodizing |
| Sab nrauv lub cev | Sandblasting + natural anodizing |
| Bleeder ntsia hlau | Dacromet los yog zinc plating |
-
Nres lub tog raj kheej (Iron)
| Cheeb Tsam Cheeb Tsam | Pom zoo kho |
|---|---|
| Piston | Hard chrome |
| Lub tog raj kheej bore | Phosphating + roj |
| Sab nrauv lub cev | E-cov |
| Bleeder ntsia hlau | Dacromet (zero hydrogen embrittlement) |
-
Clutch Master / qhev lub tog raj kheej
| Cheeb Tsam Cheeb Tsam | Pom zoo kho |
|---|---|
| Piston (Aluminium) | Hard anodizing |
| Lub tog raj kheej bore (Aluminium) | Hard anodizing |
| Sab nrauv lub cev (Aluminium) | Sandblasting + natural anodizing |
| Sab nrauv lub cev (hlau) | E-cov |
| Push pas nrig | Dacromet los yog tawv chrome |
-
Kho cov khoom siv
| Hom Lub Npe | Pom zoo kho |
|---|---|
| Aluminium piston | Hard anodizing |
| Springs | Dacromet (zero hydrogen embrittlement) |
| Hlau clips / clamps | Dacromet lossis zinc plating + passivation |
| Plua plav npog (hlau) | E-coat (hlau) los yog ntuj anodizing (aluminium) |
Phau Ntawv Qhia Txog Kev Pom Kev Ceev
- Rau aluminium qhov chaw:
| Koj pom dab tsi | Nws yog dab tsi |
| Tsaus grey rau dav hlau dub, tag nrho matte, ntiv tes yuav tsis khawb | Hard anodizing(zoo) |
| Silver-grey nrog semi-gloss, tsis yog{2}}conductive | Ntuj anodizing |
| Nyiaj -grey tag nrho matte, ntiv tes qhia, zoo li ntawv xuab zeb | Sandblasted nkaus xwb(tsis muaj anodizing) |
| Zaj sawv kub / daj iridescent | Kev hloov pauv ntawm chromate |
| Cov nyiaj sov sov-dawb, nplua zoo li stainless hlau | Electroless npib tsib xee |
- Rau hlau qhov chaw:
| Koj pom dab tsi | Nws yog dab tsi |
| Dub nrog pom semi-gloss, txheej pom hauv xov | E-cov |
| Ntshiab dub, tag nrho matte, khawb yooj yim rau liab qab hlau | Dub oxide |
| Nyiaj -grey matte, tsis muaj gloss, ntawm cov khoom siv hlau | Dacromet |
| Nyiaj -dawb nrog hlau gloss, "snowflake" qauv | Zinc plating |
| Tsaus grey matte nrog crystal kev ntxhib los mos | Phosphating |
Cov ntsiab lus
Kev kho deg tsis yog kev kho kom zoo nkauj tom qab. Nws yog qhov kev txiav txim siab engineering uas txiav txim siab ntev npaum li cas lub tog raj kheej nres yuav kav ntev npaum li cas, seb nws puas yuav xau, thiab seb nws puas yuav muaj sia nyob ntawm ib puag ncig nws tau teeb tsa.
Cov ntsiab lus tseem ceeb:
- Aluminium pistons yuav tsum tau nyuaj anodized- tsis muaj kev zam. Raw aluminium hnav tawm hauv lub lis piam.
- Hlau lub cev xav tau kev pab tag nrho- E-coat yog tus qauv kev lag luam. Dacromet yog qhov hloov kho rau siab - ib puag ncig salinity.
- Zinc plating muaj nws qhov chaw- tab sis yeej tsis nyob rau hauv siab -cov khoom siv los yog siab - lub zog fasteners. Hydrogen embrittlement yog tiag tiag.
- Ntuj anodizing yog rau tsos- nws zoo rau sab nrauv, tab sis nws yuav tsis tiv thaiv lub piston lossis bore los ntawm hnav.
- Kev soj ntsuam pom qhia zaj dab neeg- xim, gloss, thiab khawb tsis kam qhia txog kev kho mob thiab seb nws puas ua tiav.
Thaum koj tab tom sib piv lub tog raj kheej nres los ntawm cov chaw muag khoom sib txawv, saib yav dhau los lub ci ntsa iab sab nrauv. Nug seb qhov kev kho saum npoo tau siv rau lub piston, qhov bore, thiab lub cev. Cov lus teb yuav qhia koj ntau ntxiv txog cov khoom lag luam zoo dua li kev thov kev lag luam.
SY-PARTS – Tsim tus nqi tiag tiag rau cov neeg siv khoom
Rau kev nug los yog thov cov qauv tshuaj ntsuam xyuas, tiv tauj peb los ntawm lub vev xaib. Peb teb hauv 24 teev.