Graphite roj thiab nws siv hauv tsheb
Txheem
Graphite roj - inorganic lubricant zoo li, dub los yog xim av tsaus xim av, nrog ib tug ntom thiab viscous sib xws. Outwardly, nws zoo li lub npe nrov roj. Cov roj nplua nyeem yog tsim los ntawm cov roj zaub uas siv roj av cylinder roj kua thiab lithium lossis calcium soaps, nrog rau graphite. Graphite hmoov yog siv los ua tom kawg. Raws li GOST 3333-80, raws li nws tau tsim, qhov zoo tshaj plaws siv kub yog los ntawm -20 ° C mus rau + 60 ° C, txawm li cas los xij, qhov tseeb, nws tuaj yeem tiv taus qhov kub thiab txias. Graphite grease yog dav siv hauv kev lag luam, nrog rau hauv kev thauj mus los hauv tshuab. uas yog, nws yog smeared nrog springs, ncua kev kawm ntawv, hnyav loaded bearings, qhib gears, thiab hais txog.
Kev sib xyaw ntawm graphite lubricant
Ua ntej ntawm tag nrho cov, koj yuav tsum paub tias nyob rau hauv cov ntaub ntawv technical, lub sij hawm "graphite lubricant" txhais tau tias muaj ntau yam compositions. Qhov tseeb yog tias thaum xub thawj cov ntsiab lus no yog hais txog cov roj ntsha uas tsis muaj roj, uas graphite yog siv los ua cov thickener, tab sis nyob rau hauv lub dav dav, lubricants kuj hu ua li ntawd, qhov twg graphite yog siv los ua ib qho ntxiv. Yog li, lo lus "graphite lubricant" tuaj yeem txhais tau tias:
crushed graphite
- zoo tib yam graphite hmoov, uas yuav siv tau raws li ib tug khoom lubricant;
- xab npum-raws li lubricant uas muaj graphite;
- graphite ncua kev kawm ntawv nyob rau hauv cov roj tov (inorganic hom lubricant).
Nws yog cov ntsiab lus tom kawg uas feem ntau hu ua graphite roj, thiab nws yuav tau tham ntxiv. Nws cov thev naus laus zis tsim khoom suav nrog kev ua kom tuab cov roj av organic lossis hluavtaws, uas tau txais los ntawm cov khoom siv roj av, nrog cov calcium xab npum thiab graphite hmoov. Hauv lwm lo lus, peb tuaj yeem hais tias graphite hmoov ntxiv rau cov roj classic, uas muab cov roj nplua nyeem nws cov khoom.
Tam sim no, tooj liab-graphite roj kuj tuaj yeem pom ntawm muag. Copper hmoov yog ntxiv rau nws muaj pes tsawg leeg. Nws muaj peev xwm tiv taus qhov kub thiab txias. Feem ntau tooj liab-graphite roj muaj nyob rau hauv daim ntawv ntawm aerosols. Saib ua ntej, cia peb hais tias feem ntau qhov kev sib xyaw no yog siv rau cov lus qhia caliper. Txoj kev no koj tuaj yeem zam cov discs thiab / lossis nres nruas rau lub hub flanges.
Cov khoom ntawm graphite roj
Los ntawm nws tus kheej, graphite ua kom sov thiab hluav taws xob zoo, tsis tawg nyob rau hauv lub zog ntawm cov dej noo, tsis cuam tshuam los ntawm hluav taws xob zoo li qub, thiab kuj thermally ruaj khov (nws tuaj yeem tiv taus qhov kub thiab txias). Tag nrho cov khoom no, txawm tias tsawg dua, muaj cov roj nplua nyeem sib xws.
Dab tsi yog qhov zoo graphite lubricant? Nws qhov zoo muaj xws li:
- chemical tsis kam (thaum siv roj nplaum rau qhov chaw ua haujlwm, nws cov ntsiab lus tsis nkag mus rau hauv cov tshuaj tiv thaiv nrog nws);
- thermal tsis kam (tsis evaporate mus txog qhov kub ntawm +150 ° C, vim tias qhov concentration ntawm cov khoom tsis haum hauv nws cov muaj pes tsawg leeg, tsis poob nws cov yam ntxwv ntawm qhov kub thiab txias);
- tiv thaiv qhov chaw ua haujlwm los ntawm noo noo;
- tau nce colloidal stability;
- tawg-pov thawj;
- muaj zoo heev lubricating zog;
- nce hnav tsis kam, mechanical kev ua tau zoo thiab kev pabcuam lub neej ntawm lub tshuab uas siv;
- txo tus naj npawb ntawm qaug dab peg;
- tsis cuam tshuam los ntawm cov roj, uas yog, tseem nyob rau saum npoo txawm tias nws yog tam sim no;
- graphite roj adheres zoo rau txhua qhov chaw;
- resistant rau hluav taws xob zoo li qub;
- muaj cov nplaum nplaum thiab antifriction.
kuj yog ib qho tseem ceeb kom zoo dua ntawm graphite roj yog nws tus nqi qis nrog kev ua haujlwm zoo. Txawm hais tias, nyob rau hauv kev ncaj ncees, nws yuav tsum tau muab sau tseg tias tam sim no muaj ntau lwm yam, ntau tshaj lubricants, uas, txawm tias lawv kim dua, muaj kev ua tau zoo dua.
Txawm li cas los xij, graphite roj kuj muaj qhov tsis zoo. uas yog, nws tsis tuaj yeem siv rau hauv cov txheej txheem nrog kev ua haujlwm siab, txij li cov khoom impurities tam sim no nyob rau hauv graphite yuav ua rau muaj zog hnav ntawm qhov chaw;
Nta
Tam sim no GOST 3333-80, nrog rau cov xwm txheej tseem ceeb, qhia txog kev ua haujlwm thiab kev ua haujlwm ntawm graphite roj.
| Характеристика | nqi |
|---|---|
| Qhov ntsuas kub ntawm kev siv | los ntawm -20 ° C mus rau + 60 ° C (txawm li cas los xij, nws raug tso cai siv roj ntawm qhov kub hauv qab -20 ° C hauv cov dej ntws thiab cov khoom siv zoo sib xws) |
| Qhov ceev, g / cm³ | 1,4… 1,73 |
| Tso taw tes | tsis qis dua +77 ° C |
| Kev nkag mus ntawm +25 ° C nrog kev ntxhov siab (60 ob lub voj voog) | tsis tsawg tshaj 250 mm / 10 |
| Colloidal stability, % ntawm cov roj tso tawm | tsis ntau tshaj 5 |
| Loj feem ntawm cov dej | tsis ntau dua 3% |
| Shear zog ntawm +50 ° C | tsis tsawg tshaj 100 Pa (1,0 gf / cm²) |
| Viscosity ntawm 0 ° C nyob rau hauv qhov nruab nrab strain rate gradient 10 1 / s | tsis ntau tshaj 100 Pa•s |
| Tensile zog ntawm +20 ° C, kg / cm² | |
| tensile | 120 |
| rau compression | 270… 600 |
| Hluav taws xob tsis kam | 5030 XNUMX awm |
| Kub, ° C | |
| decomposition | 3290 |
| qhov siab tshaj plaws tso cai ua haujlwm | 540 |
| nruab nrab tso cai ua haujlwm | 425 |
| Roj oxidation cov khoom | CO, CO 2 |
| NLGI class | 2 |
| Kev xaiv raws li GOST 23258 | SKa 2/7-g2 |
Thaum ua haujlwm nrog roj, koj yuav tsum nco ntsoov thiab ua raws li cov cai hauv qab no rau kev nyab xeeb ntawm graphite roj.
Ua raws li cov hauv qab no kev nyab xeeb thiab kev tiv thaiv hluav taws thaum tuav cov roj:
- Graphite roj yog tawg-pov thawj, nws lub teeb nyem yog +210 ° C.
- Thaum spilled rau saum npoo, cov roj nplua nyeem yuav tsum tau sau rau hauv ib lub thawv, qhov chaw nchuav yuav tsum tau so qhuav nrog ib daim ntaub, uas yuav tsum tau muab tso rau hauv ib qho kev sib cais, nyiam dua hlau, lub thawv.
- Thaum muaj hluav taws kub, cov tshuaj tua hluav taws tseem ceeb yog siv: dej pos huab, tshuaj lom neeg, huab cua tshuaj ua npuas ncauj, ua npuas ncauj ua npuas ncauj thiab cov hmoov sib xyaw tsim nyog.
Scope ntawm daim ntawv thov
Scope ntawm graphite roj yog dav heev. Hauv kev tsim khoom, nws yog lubricated nrog:
- cov khoom siv tshwj xeeb springs;
- qeeb-mus bearings;
- qhib thiab kaw shafts;
- ntau yam iav;
- nres li qub;
- raug tshem tawm hauv cov tshuab loj loj, cov cuab yeej tshwj xeeb;
- drilling rig txhawb nqa.
Tam sim no peb luv luv sau cov khoom thiab cov txheej txheem ntawm lub tsheb uas tuaj yeem lubricated nrog qhov sib xyaw no (siv rau qee qhov nta):
- kauj tsheb sib txuas;
- steering khib (npe, lub khib vaj tse yog disassembled thiab ua hauj lwm iav yog lubricated);
- cov ntsiab lus ntawm lub kauj mechanism (tshwj tsis yog cov uas siv cov roj iav los ua lubricants);
- pob cov kabmob;
- anti-creak washers nyob rau hauv lub springs;
- anthers ntawm lub tswv yim thiab rods;
- thawb bearings;
- steering knuckle bearings (rau kev tiv thaiv, roj tseem ntim rau hauv lub hau tiv thaiv);
- cable tsav nres nres nres;
- tshuab springs;
- Nyob rau hauv lub log tsav tsheb, nws tuaj yeem siv rau cov kiv cua ncej crosspieces.
graphite roj kuj tseem siv tau los ua prophylactic. uas yog, nws tuaj yeem siv los lubricate threaded kev sib txuas, zoo tib yam thiab tshuab xauv lub caij ntuj sov thiab tshwj xeeb tshaj yog nyob rau lub caij ntuj no.
Ntau tus neeg tsav tsheb kuj txaus siab rau cov lus nug ntawm seb nws puas tuaj yeem lubricate CV pob qij txha (cov pob qij txha tsis tu ncua) nrog graphite. Tsis muaj ib lo lus teb rau qhov no. Yog tias peb tab tom tham txog cov roj nplua nyeem pheej yig hauv tsev, ces koj yuav tsum tsis txhob muaj kev pheej hmoo, nws tuaj yeem ua rau lub hauv paus mechanism ntawm lub pob khawm. Yog tias koj siv cov roj nplua nyeem kim kim (piv txwv li, Molykote BR2 ntxiv, Molykote Longterm 2 ntxiv, Castrol LMX thiab lwm yam ntaub ntawv uas muaj graphite), ces koj tuaj yeem sim. Txawm li cas los xij, nco ntsoov tias muaj cov roj nplua nyeem tshwj xeeb rau CV pob qij txha.
CV sib koom ua ke roj
Lub sijhawm lubrication ntawm CV sib koom ua ke txo nws txoj kev hnav thiab txuas ntxiv nws lub neej kev pabcuam. Txhua hom pob khawm xav tau nws tus kheej hom roj nplaum. Nrhiav seb qhov twg yuav tsum tau smeared thiab qhov twg yog qhov zoo dua los ntawm kev tshuaj xyuas thiab tshuaj xyuas cov yam ntxwv. Paub meej ntxiv
Nws yog ib qho tsim nyog nyob nyias ntawm cov lus nug ntawm seb puas muaj peev xwm lubricate lub roj teeb terminals nrog graphite roj. Yog, nws muaj pes tsawg leeg ua hluav taws xob, tab sis muaj kev pheej hmoo ntawm overheating vim qhov tseeb tias nws muaj kev tiv thaiv siab. Yog li ntawd, "graphite" yuav siv tau los lubricate lub terminals, tab sis nws yog undesirable. Lubrication yuav tiv thaiv qhov chaw ntawm corrosion. Yog li ntawd, nws yog qhov zoo dua los siv lwm txoj hauv kev los lubricate lub roj teeb terminals.
Yuav ua li cas lubricate roj teeb terminals
Lubricants rau lub roj teeb terminals tuaj yeem muaj los ntawm cov txheej txheem "laus-fashioned" los tiv thaiv cov roj teeb ntawm oxidation, mus rau niaj hnub, nrog impurities uas txhim kho hluav taws xob conductivity. Paub meej ntxiv
Yuav ua li cas tshem tawm graphite roj
Siv cov roj nplua nyeem yam tsis muaj kev saib xyuas tuaj yeem yooj yim stain koj cov khaub ncaws. Thiab nws yuav tsis yooj yim rau tshem tawm, vim nws tsis yog tsuas yog rog, tab sis kuj graphite, uas nyuaj rau so. Yog li, cov lus nug nthuav dav tshwm sim: koj tuaj yeem so lossis so cov roj graphite li cas. Hauv Is Taws Nem muaj ntau qhov kev tsis sib haum xeeb thiab kev xav txog qhov no. Peb muab koj cov kev xav txog ntau yam kev kho mob uas yuav tsum tau pab hauv qhov no (qhov tseeb yog tias nyob rau hauv txhua tus neeg mob cov kev kho mob sib txawv tuaj yeem pab tau, txhua yam nyob ntawm qhov kev sib kis, hom ntaub, lub sijhawm ntawm kev sib kis, ntxiv impurities, thiab lwm yam). Yog li, lawv yuav pab koj:
Antipyatin
- roj av (xws li 98th, los yog ntshiab aviation kerosene);
- roj ntxuav (piv txwv li, "Antipyatin");
- "Sarma gel" rau cov tais diav;
- tshuaj zawv plaub hau tsis sib cuag nrog lub tsheb (txhaj tshuaj aerosol rau hauv av, ces sim maj mam so nws);
- soapy kub (yog tias cov pa phem tsis muaj zog, ces koj tuaj yeem ntub cov khaub ncaws ib ntus hauv cov tshuaj ntxhua khaub ncaws, thiab tom qab ntawd so ntawm tes);
- "Vanish" (ib yam li ntawd, koj yuav tsum tau muab tso rau hauv cov khaub ncaws ua ntej thiab cia lawv sawv ntsug rau ob peb teev, koj tuaj yeem ntxuav lawv ntawm tes lossis hauv lub tshuab ntxhua khaub ncaws).
Qee tus tswv tsheb pom zoo kom ntxhua khaub ncaws hauv lub tsheb ntxhua ntawm qhov kub siab tshaj plaws. Nco ntsoov tias rau qee hom ntaub, qhov no tsis tsim nyog! Tej zaum lawv yuav poob cov qauv thiab cov khaub ncaws tsis tuaj yeem rov qab los. Yog li ntawd, nyeem dab tsi yog qhia ntawm daim ntawv lo rau ntawm cov khaub ncaws, uas yog, ntawm qhov kub ntawm cov khoom tuaj yeem ntxuav.
Yuav ua li cas ua graphite roj nrog koj tus kheej tes
Ua-nws-koj tus kheej graphite roj
Vim muaj koob meej ntawm graphite grease ntawm automakers, nrog rau qhov yooj yim ntawm nws muaj pes tsawg leeg, muaj ntau ntau txoj kev uas koj tuaj yeem ua cov roj nplua nyeem hauv tsev.
koj yuav tsum noj graphite hmoov, roj thiab tshuab roj. Lawv qhov piv txwv yuav txawv. Lub hauv paus yog cov roj ua kua, uas cov roj ntxiv, thiab tom qab ntawd graphite (koj tuaj yeem siv cov cwj mem frayed lossis hnav txhuam ntawm lub tshuab hluav taws xob lossis cov khoom siv tam sim no). tom qab ntawd qhov loj no yuav tsum tau nplawm kom txog thaum muaj qhov sib xws zoo ib yam li qaub cream. Iav roj tuaj yeem siv los hloov cov roj tshuab.
Txawm li cas los xij, koj yuav tsum nkag siab tias cov khoom sib xyaw ua ke hauv tsev yuav tsis ua raws li GOST tau teev tseg, yog li cov roj nplua nyeem yuav tsis ua raws li nws cov qauv. Tsis tas li ntawd, lub txee lub neej ntawm cov khoom siv hauv tsev graphite lubricants yuav qis dua lub Hoobkas.
Tooj graphite roj
Raws li tau hais los saum no, ib qho kev txhim kho ntawm cov classic graphite roj yog tooj liab-graphite roj. Los ntawm lub npe nws yog tseeb hais tias tooj liab hmoov yog ntxiv rau nws muaj pes tsawg leeg, uas ho txhim kho cov kev ua tau zoo zog. Cov yam ntxwv ntawm cov muaj pes tsawg leeg ntawm tooj liab-graphite roj muaj xws li:
Tooj graphite roj
- muaj peev xwm ua haujlwm ntawm qhov kub thiab txias (hauv qhov no, nws tsis tuaj yeem qhia meej meej, txij li cov khoom sib txawv nrog cov khoom sib txawv muaj nyob rau hauv kev ua lag luam, qee qhov ntawm lawv tuaj yeem ua haujlwm ntawm qhov kub txog + 1000 ° C thiab siab dua, nyeem cov ntsiab lus hauv cov khoom piav qhia);
- muaj peev xwm tiv taus siab mechanical loads (zoo ib yam li cov kab lus dhau los);
- nce qib ntawm adhesion thiab nplaum;
- ua kom tiav cov txheej txheem corrosion ntawm qhov chaw tiv thaiv;
- tiv taus roj thiab noo noo;
- Cov muaj pes tsawg leeg ntawm cov roj nplua nyeem tsis suav nrog txhuas, npib tsib xee thiab sulfur.
Piv txwv li, tooj liab-graphite roj zoo kawg nkaus tiv thaiv qhov chaw ua haujlwm txawm tias nyob rau hauv kev ua haujlwm hnyav. Feem ntau threaded kev sib txuas raug kho nrog cov cuab yeej no ua ntej txuas lawv. Qhov no ua rau nws muaj peev xwm unscrew kev twb kev txuas yav tom ntej yam tsis muaj teeb meem.
Nrov tuam ntxhab
Thaum kawg, cia peb luv luv nyob ntawm qee cov tuam txhab tsim khoom tsim cov roj graphite. Nws tsim nyog hais tam sim ntawd tias lawv cov khoom muaj ntau txoj hauv kev zoo sib xws, yog li nws tsis muaj teeb meem tiag tiag uas hom roj nplua nyeem koj yuav. Cov roj graphite hauv tsev ua tau raws li GOST 3333-80, yog li txhua yam khoom yuav zoo li qub.
Yog li, nyob rau hauv lub post-Soviet qhov chaw, graphite lubricants yog tsim los ntawm:
- LLC "Colloid-graphite npaj" Lub tuam txhab no tsim graphite lubricants rau kev lag luam. Ua lag luam wholesale khoom xa tuaj.
- Roj Cai. Raws li qhov kawg ntawm 2021, ib lub raj hnyav 100 grams raug nqi 40 rubles. Tus lej catalog ntawm cov khoom yog 6047.
- TPK "RadioTechPayka". Ib lub hub ntawm 25 grams raug nqi 30 rubles, ib lub raj ntawm 100 grams nqi 70 rubles, thiab ib hub ntawm 800 grams nqi 280 rubles.
Raws li rau txawv teb chaws manufacturers, lawv cov khoom muaj ib tug zoo meej muaj pes tsawg leeg. feem ntau, ntxiv rau graphite, cov nyiaj muaj pes tsawg leeg suav nrog cov khoom siv niaj hnub thiab cov ntsiab lus uas ua rau lawv txoj haujlwm ua haujlwm. Hauv qhov no, lawv cov lus piav qhia tsis tsim nyog, ua ntej, vim tias qhov kev xaiv yuav tsum tau ua raws li lub hom phiaj ntawm cov neeg siv khoom, thiab qhov thib ob, cov roj nplua nyeem thiab cov tuam txhab tsuas yog loj heev!
Es tsis txhob ib tug xaus
Graphite grease yog cov cuab yeej pheej yig thiab siv tau zoo los tiv thaiv cov chaw ua haujlwm los ntawm kev xeb, ua rau kev ua haujlwm ntawm cov khub ua haujlwm, nrog rau kev ua kom lawv lub neej ua haujlwm. Txawm li cas los xij, thaum siv nws, nco ntsoov tias cov roj nplua nyeem tsis tuaj yeem siv rau hauv cov txheej txheem kev kub ceev thiab qhov yuav tsum tau muaj siab precision ntawm qhov chaw ua haujlwm. Yog li ntawd, siv nws hauv cov nodes uas tau hais los saum toj no, thiab muab nws tus nqi qis, nws yuav ua haujlwm zoo rau koj los tiv thaiv qhov chaw ntawm koj lub tsheb.
