graphite roj nplua nyeem. Cov yam ntxwv tshwj xeeb
Kev sib xyaw thiab cov yam ntxwv
Txog rau tam sim no, muaj pes tsawg leeg ntawm graphite roj tsis raug rau cov kev cai nruj. Txawm tias GOST 3333-80, uas hloov lub outdated GOST 3333-55, tsis tsim kom muaj nuj nqis los yog zoo muaj pes tsawg leeg ntawm cov khoom siv nyob rau hauv lub tsim ntawm graphite roj. Tus qauv tsuas yog qhia txog cov yam ntxwv ntawm graphite roj hom "USsA" thiab yam tsawg kawg nkaus uas yuav tsum tau muaj.
Qhov no yog siv los ntawm cov tuam ntxhab, sim nrog cov muaj pes tsawg leeg thiab, vim li ntawd, cov khoom kawg ntawm cov khoom. Niaj hnub no, ob lub ntsiab lus tseem ceeb ntawm graphite roj yog ob yam khoom: cov pob zeb hauv av tuab (feem ntau ntawm cov hauv paus chiv keeb roj av) thiab cov av graphite zoo. Calcium los yog lithium xab npum, siab heev, antifriction, dej dispersion thiab lwm yam additives yog siv raws li ntxiv additives.
Qee zaum tooj liab hmoov ntxiv rau graphite. Tom qab ntawd cov roj hu ua tooj liab-graphite. Lub peev xwm ntawm tooj liab-graphite roj yog hloov mus rau kev tiv thaiv ntev ntawm kev sib cuag ntawm qhov chaw los ntawm kev xeb nrog qhov sib txawv me me. Piv txwv li, xws li ib tug lubricant yog dav siv nyob rau hauv threaded kev twb kev txuas thiab ntau yam kev qhia.
Cov yam ntxwv ntawm graphite roj, nyob ntawm seb muaj pes tsawg leeg, sib txawv heev. Piv txwv li, qhov ntsuas kub tsawg kawg nkaus uas cov roj nplua nyeem tsis cuam tshuam nws cov khoom sib txawv ntawm -20 txog -50 ° C. Qhov siab tshaj plaws: los ntawm +60 (rau qhov yooj yim UssA lubricant) rau +450 (rau niaj hnub high-tech "graphites").
Ib qho ntawm cov lus tshaj tawm ntawm graphite roj yog qhov qis coefficient ntawm kev sib txhuam. Qhov no ua tiav ua tsaug rau graphite, daim hlau thiab cov muaju uas nyob rau theem molecular zoo kawg nkaus glide ob qho tib si rau ib leeg thiab lwm qhov chaw, tsis hais qhov xwm txheej ntawm cov chaw no. Txawm li cas los xij, vim qhov nyuaj ntawm ib tus neeg graphite muaju, cov roj no tsis pom zoo siv rau hauv kev sib txhuam nrog cov khoom raug siab thiab qhov sib txawv me me ntawm cov khoom sib txuas. Piv txwv li, nws tau raug pov thawj tias muab "graphite" es tsis txhob siv cov roj uas tsim nyog (solidol, lithol, thiab lwm yam) hauv cov kabmob dov txo lawv lub neej kev pabcuam.
Graphite kuj txiav txim siab cov khoom siv hluav taws xob ntawm cov roj nplua nyeem. Yog li ntawd, graphite roj yog siv los tiv thaiv hluav taws xob tiv tauj los ntawm corrosion thiab nce sparking.
Nws siv rau dab tsi?
Lub Scope ntawm graphite lubricant feem ntau yog dav heev. Graphite tau ua pov thawj nws tus kheej zoo nyob rau hauv qhib kev sib txhuam khub, nyob rau hauv uas ceev ntawm tus txheeb ze txav ntawm qhov chaw me me. Nws tsis ntxuav tawm nrog dej ntev, tsis qhuav tawm thiab tsis degrade nyob rau hauv kev cuam tshuam ntawm lwm yam tsis zoo sab nraud.
Hauv cov qauv tsheb thiab cov tsheb thauj khoom, graphite roj kuj tau siv dav heev:
- threaded kev twb kev txuas - tiv thaiv corrosion thiab sticking ntawm threads;
- pob bearings ntawm lub kauj log - raws li lub ntsiab lubricant nws yog pumped rau hauv lub cev ntawm bearings thiab ntxiv rau muab tso rau hauv lub anthers;
- steering pas nrig pob qij txha thiab cov lus qhia - siv zoo ib yam nrog cov pob bearings;
- spline kev sib txuas - sab nraud thiab sab hauv splines yog lubricated kom txo tau hnav thaum lawv sib nrig sib zog;
- springs - lub springs lawv tus kheej thiab anti-creak substrates yog lubricated;
- kev sib cuag - raws li txoj cai, cov no yog cov roj teeb terminals, ib tug tsis zoo hlau los ntawm lub roj teeb mus rau lub cev thiab ib tug zoo hlau los ntawm lub roj teeb mus rau lub oob khab;
- raws li ib tug anti-creak txheej ntawm hu rau yas thiab hlau nto.
Txawm tias muaj tseeb hais tias niaj hnub no lub lag luam muaj ntau yam ntawm ntau tshaj thiab yoog lubricants, graphite tseem nyob rau hauv kev thov ntawm cov neeg tsav tsheb. Nws yog qhov zoo sib npaug ntawm tus nqi thiab cov yam ntxwv. Tus nqi nruab nrab rau 100 grams ntawm graphite lubricant fluctuates nyob ib ncig ntawm 20-30 rubles, uas yog cheaper npaum li niaj hnub lubricant compositions nrog txhim kho cov yam ntxwv. Thiab qhov twg tsis muaj kev tiv thaiv siab, kev siv graphite yuav yog qhov kev daws teeb meem zoo tshaj plaws.
