Hobaneng ho Hlokeha Mochini oa Honing ho Tlhahiso ea Ring ea Piston
Mehele ea piston e tlameha ho ba lejometri e nepahetseng ka mokhoa o ikhethileng le sephetho sa bokaholimoho netefatsa:
E nepahetsengho tiisapakeng tsa lerako la piston le silinda
Laolwafilimi ea oliholim'a silindara
Nyenyanekhohlano le ho felloa ke matlanakong ea ts'ebetso ea enjine
Ka mor'a mekhoa e kangho reteleha, ho sila, le ho ratha, selikalikoe sabophara ba ka hare (ID), bophara ba kantle (OD), ledifahleho tse mahlakoree kanna ea ba le:
Matshwao a manyenyane a machining
Likhopamiso tse nyane ({0}}kantle ho-tse chitja, taper)
Motsoako o sa nepahalang oa ho boloka oli le ho sebetsa-ka hare
Kahoo,ho hlomphuoaho:
Finyellamicron-boemo bo chitja le ho nepahala ha bopharaea ID kapa OD ea selikalikoe.
Ntlafatsabokaholimo le thepa e behangbakeng sa ho thellela boreleli kgahlanong le cylinder bore.
Hlahisa amicrotexture e laoloange bolokang oli e tlotsang hantle.
Tlosamasalla lisebelisoa tsa matšoaole ho hloekisa geometry ka mor'a phekolo ea mocheso kapa ho sila.
Mesebetsi ea Mochini oa Honing ho Tlhahiso ea Ring ea Piston
| Mosebetsi | Tlhaloso |
|---|---|
| Dimensional Precision | Boholo ba ho qetela ba reng ID/OD ho isa ho ±0.001–0.002 mm. |
| Tokiso ea Roundness le Cylindricity | E felisa ho khopama ho bakoang ke kalafo ea mocheso kapa mochini oa pele. |
| Ntlafatso ea Qetello ea Bokaholimo | E fihlella seipone-joaloka kapa sehlaba (Ra ≈ 0.1–0.3 µm). |
| Sebaka sa ho Boloka Oli | E hlahisa-cross-hatch kapa plateau texture bakeng sa lubrication e feletseng. |
| Ho Fokotsa Khohlano le Nyeoe | E ntlafatsa ts'ebetso ea selikalikoe sa piston le katleho ea enjine. |
Kamoo Honing Process e Phethahalang Kateng (Mohato-ka-Mohato)
1. Tokisetso ea mosebetsi
Mehele ea piston le eona e tlameletsoeka bonngwekapa homekolokotoanaho aho nepahala mandrel.
Mochini oa honing o behiloe ho latelaboholo ba selikalikoe le thepa(hangata tšepe e entsoeng ka tšepe, tšepe, kapa mehele ea molybdenum-e koahetsoeng).
2. Honing Tool Setup
A honing mandrel kapa hloohokenyelletsemajoe a hlabange sebelisoa.
Hangata, li-abrasives li tengdaemane, CBN (cubic boron nitride), kapa aluminium oxide, ho itšetlehile ka boima ba lesale le litlhoko tsa ho qetela.
Majoe ae atolohang, ho sebelisa khatello e tšoanang ka hare kapa ka ntle.
3. Honing Opereishene
(a) Ho kopanela le Motsamao
Hlooho ya ho rokae potoloha(hangata 200-600 rpm) haho busetsana ka axiallyka maqhubu a phahameng (20-60 strokes / min).
Ts'ebetso ena e kopaneng e fokotsa sebaka se nepahetseng, se ts'oanang 'me se ka hlahisa amicro-cross{1}}hatch patternha ho hlokahala.
(b) Khatello e Laolang le Lijo
Hydraulic kapa servo{0}katoloso e laoloang e sebetsa khatello e sa fetoheng ea ho netefatsa hore thepa e tlosoa.
Ho tlosa lintho tse bonahalang ho fokotsehile - hangata5–20 µm- empa e na le boitsebelo bo holimo ba thutatekanyo.
(c) Phallo e Phodileng
Oli ea ho hloekisa kapa sepholi sa maiketsetso se tlosa likaroloana tse ntle, mafura, 'me se pholisa lisebelisoa tsa mosebetsi le li-abrasives.
4. Tlhokomelo ea Ts'ebetso le Tekanyo
{0}e ntse e lekanngoakapamekhoa ea ho lekanya moeahlokomela boholo ba bore kapa ID ka nako ea sebele.
Ho koala{0}}ka ho iketsa ho etsa bonnete ba hore selikalikoe se seng le se seng se kopana le mamello.
Bakeng sa{0}}tlhahiso e phahameng,metjhini e mengata{{0}ea spindle kapa ea polanete ea ho holisali sebelisetsoa ho honing ka nako e le 'ngoe ea mehele e mengata.
5. Qetello (Sehlabeng kapa Mirror Honing)
Pase ea ho qetela e sebelisoa{{0}majoe a matleho batalatsa litlhoro ha u ntse u siea oli{0}likhohlo tse saletseng.
Sena "honing ea sehlaba" e etsa sebopeho se laoloang se fokotsang ho khathala ha enjine e qala ho sebetsa-mohatong.
Sephetho sa Bokaholimo le Litšobotsi tsa Dimensional
| Paramethara | Boleng bo Tlwaelehileng | Morero |
|---|---|---|
| Mamello ea ID / OD | ± 0.001–0.002 limilimithara | Ho tiisa hantle ka har'a piston groove le cylinder bore |
| Ho pota-pota | Ka tlase ho kapa ho lekana le 1.0 µm | Potoloho e boreleli le khatello e tšoanang |
| Bokhopo ba Sefahleho (Ra) | 0.1–0.3 µm | Taolo e ntlafalitsoeng ea ho thella le oli |
| Cross{{0}Hatch Angle | 20-40℃(haeba ho hlokahala) | Ho boloka oli hantle le ho tlotsa |
| Karolelano ea Plateau | 60–80% | Ho matha ka potlako-ho kena le ho felloa ke matla |
Honing Configurations bakeng sa Piston Rings
| Mofuta | Tlhaloso | Kopo |
|---|---|---|
| Honing ka Hare | Ho matlafatsa bophara ba kahare (bakeng sa piston groove fit) | E tloaelehileng haholo |
| Tlotlo ea Kantle | E qeta bophara bo ka ntle (bakeng sa sebaka sa ho kopana le silinda) | E sebelisoa bakeng sa taolo e nepahetseng ea sehokelo sa ring-bore |
| Flat Surface Honing | E qeta lifahleho tse mahlakore a reng | Bakeng sa ho thella ho boreleli ka har'a li-piston grooves |
| Mechini e Hloekisang Lipolanete | Li-spindle tse ngata li holisa mehele e mengata ka nako e le 'ngoe | Mehala e phahameng-ea tlhahiso ea molumo |
Kakaretso
| Karolo | Tlhaloso |
|---|---|
| Tlhokahalo ea Honing | Ho fumana maemo a holimo, a boreleli, le ho boloka oli-lisebelisoa tsa piston bakeng sa ho tiisa enjene le ho phela bophelo bohle. |
| Mesebetsi e Meholo | Tokiso ea boholo, ntlafatso ea ho pota-pota, ho qeta bokaholimo, le sebopeho sa lubrication. |
| Mokhoa oa Ts'ebetso | Ho itšeha ho laoloang ho sebelisoa majoe a bilikang le a khutlang tlas'a phallo e pholileng e sa khaotseng. |
| Sephetho | Geometry e tsitsitseng ea ring, khohlano e tlase, taolo e nepahetseng ea oli, le ho tšoarella ho matlafalitsoeng ts'ebetsong ea enjene. |
