Yuav ua li cas xaiv lub grit loj ntawm lub log sib tsoo? Kos npe thiab yees duab

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Tag nrho qhov chaw ntawm lub log sib tsoo yog them nrog ntau qhov nyuaj. Yooj yim muab, qhov no yog grit ntawm lub sib tsoo log. Cov khoom no feem ntau yog faib sib npaug ntawm tag nrho thaj tsam ntawm lub voj voog. Ua ntej pib nrog kev xaiv ntawm lub voj voog rau kev ua cov khoom, nws yog ib qho tseem ceeb kom nkag siab txog tus yam ntxwv no.

Sib tsoo log

Qhov kev tshuaj xyuas yuav tsum pib nrog qhov tseeb tias koj yuav tsum nkag siab tias lub voj voog yog dab tsi. Nws yog cov cuab yeej txiav abrasive. Nws yog ib qho tsim nyog hais tias muaj cov voj voog uas siv rau kev ua haujlwm ntawm phau ntawv, nrog rau kev ua haujlwm ntawm cov tshuab. Lawm, qhov loj me ntawm kev sib tsoo lub log ntawm cov cuab yeej kev tshaj lij raug xaiv raws li qhov ua tau kom ua tau zoo tshaj plaws.

Muaj ob peb yam uas lub voj voog tau muab faib ua ob peb pawg, tab sis qhov tseem ceeb tshaj plaws yog cov khoom siv abrasive thiab khi cov khoom. Raws li qhov ntsuas no, muaj cov voj voog hauv qab no:

• silicon carbide nplej;
• elbora;
• electrocorundum;
• pob zeb diamond lossis ntuj tsim.

Ntawm no nws yog ib qho tseem ceeb kom nkag siab tias nws yog cov nplej loj ntawm lub log sib tsoo uas txiav txim siab nws lub hom phiaj tseem ceeb. Nws yog cov khoom siv abrasive uas txiav tawm lub microscopic txheej ntawm cov khoom. Rau nws cov pob khoom, muaj ntau yam khoom uas tuaj yeem ua tau ob qho tib si dag thiab ntuj. Lwm qhov tshwj xeeb ntawm kev sib tsoo log yog qhov muaj cov qauv ntxeem tau, uas muab cov roughness ntawm txheej.

Grain overview

Qhov kev xaiv ntawm grit loj ntawm lub log sib tsoo nyob ntawm seb yuav tsum tau ua li cas rau kev huv ntawm qhov chaw yuav tsum tau ua. Txhawm rau kom tsis txhob yuam kev, txhua lub voj voog muaj lub npe tshwj xeeb (kos npe).

Yog tias koj paub cov cim, ces xaiv lub voj voog tsim nyog, hauv txoj cai, tsis nyuaj. Nws yog ib qho tseem ceeb heev uas yuav tsum paub tias qhov luaj li cas ntawm kev sib tsoo log rau cov hlau thiab ntoo txheej yog sib txawv, thiab yog li ntawd koj yuav tsum tau xyuam xim rau qhov tseeb thaum xaiv ib lub cuab tam. Yog tias tom qab ua haujlwm lossis thaum lub sijhawm ua haujlwm, cov ntiv taw, cov kab nrib pleb thiab lwm yam tsis xws luag tshwm rau ntawm lub voj voog, ces qhov yuam kev tau ua nyob rau theem ntawm kev xaiv cov nplej loj ntawm cov cuab yeej ua haujlwm. Yuav ua li cas txiav txim siab qhov ntsuas no kom raug? Ob yam yuav tsum tau coj mus rau hauv tus account: qhov yuav tsum tau purity ntawm kev ua, nrog rau cov hom ntawm kev ua hauj lwm, uas plays lub luag hauj lwm tseem ceeb.

Cov cuab yeej uas nquag yuav niaj hnub no yog 60, 100 thiab 120 grit.

Lub voj voog xaiv thiab cov lus pom zoo

Yog tias nws yog qhov tsim nyog los ua qhov sib tsoo, uas yog ua tiav nrog qhov kawglog, lub grit yuav tsum yog los ntawm 16 mus rau 36. Cylindrical ntxhib sib tsoo yog ua los ntawm ib lub log nrog grit Performance index ntawm 24-36. Lub grit ntawm kev sib tsoo abrasive log rau puag ncig zoo sib tsoo yuav tsum yog los ntawm 60 mus rau 100. Muaj xws li kev ua haujlwm, uas yog hu ua kev ua tiav ntawm ntau cov hniav, uas yog ua los ntawm lub log nrog grit ntawm 170-220. Kev sib tsoo zoo yog nqa tawm nrog lub log yam ntxwv los ntawm 180 mus rau 320. Muaj cov txheej txheem hu ua xov sib tsoo. Lub ntsiab lus ntawm cov txheej txheem yog qhov tseeb ntawm lub npe, thiab ua haujlwm, qhov loj ntawm lub voj voog yog los ntawm 100 txog 280.

Muaj txoj hauv kev yooj yim dua los txhais cov graininess. Semi-finishing los yog ua tiav ntawm cov khoom yuav tsum muaj cov khoom zoo ntawm cov nplej. Roughing, ntawm qhov tsis sib xws, yog nqa nrog coarse nplej.

Marking

Cov cuab yeej piav qhia muaj ntau qhov tsis muaj, uas feem ntau qhia hauv nws lub npe. Grit marking ntawm kev sib tsoo log tsis tau teev tseg, nws yeej ib txwm suav nrog tag nrho lub log npav.

1. Lub voj voog hom ib txwm teev ua ntej.
2. Qhov thib ob tseem ceeb parameter yog qhov ntev ntawm lub cuab yeej.
3. Cov hauv qab no qhia txog hom khoom siv abrasive uas tau siv los tsim lub log txheej.
4. Tam sim tom qab no, lub npe grit ntawm kev sib tsoo log yog qhia.
5. Cov cim ib txwm hais txog qhov nyuaj ntawm cov khoom.
6. Txoj kev sib txuas.
7. Nyob ib pob.
8. Ua haujlwm siab tshaj plawsncig.
9. chav kawm muaj tseeb.
10. Unbalance class.

Cov npe 10 yam khoom suav nrog ob qho tib si kos qhov loj me ntawm lub log sib tsoo thiab qhia txog lwm yam.

Kev faib cov voj voog rau hauv pawg los ntawm grit

Muaj ntau pab pawg ntawm cov cuab yeej sib txawv hauv cov nplej. Cov pab pawg ntawm cov khoom siv loj suav nrog cov cuab yeej uas cim 320 b, 250 b, 200 b, 160 b, 125 b thiab ntau lwm tus. Cov pab pawg tom ntej yog qhov nruab nrab, uas suav nrog cov npe xws li 50 k, b, 40 k, b, 32 k, b, thiab lwm yam. Cov pab pawg neeg nplua nuj suav nrog cov qib xws li 12 k, b, 10 k, b, 8 k b,3k,ib. Cov pab pawg kawg suav nrog cov voj voog nrog cov npe 5, 4, 3, nrog rau M63, M50, M40, M28.

Siv lub cuab tam raws li qib ntawm grit

Thaum xaiv qhov zoo grit, nws yog ib qho tseem ceeb kom paub tias qhov sib txawv ntawm grit cuam tshuam rau cov khoom tshem tawm. Piv txwv li, cov qoob loo loj loj ntawm lub log nrov plig plawg yuav tso cai rau cov kav hlau loj loj tuaj yeem ua tiav. Thiab thaum nws los txog rau kev ua ntoo, koj yuav tsum tau yuav lub log nrog cov khoom siv tsis zoo.

Ntau qib ntawm tus yam ntxwv no yog qhov tsim nyog los pab ua haujlwm ua ntej thaum tev nrog qhov tob tob ntawm kev txiav. Cov log nrog qib sib txawv yog qhov zoo rau kev ua haujlwm, thiab ib pab pawg sib cais yuav tsum tau ua haujlwm nrog tooj liab, tooj dag thiab txhuas.

Coarse wheel grit feem ntau yuav tsum tau thaum sib tsoo yog nqa nrog qhov kawg ntawm lub log. Tsis tas li ntawd, lawv kuj siv tau thaum sib tsoo sab hauv yog tsim nyog. Feem ntau, cov khoom siv zoo li no tau siv rau ntawm cov tshuab uas muaj qhov ua kom nruj thiab ua kom muaj zog.

Cov log nruab nrab thiab zoo grit yog siv rau kev ua haujlwm xws li:

• tawv hlau alloy sib tsoo;
• machining hardened steels;
• nto tiav;
• ntse ntawm lwm yam cuab yeej.

Cov log nruab nrab thiab nplua-grained kuj tseem siv tau thaum xav tau kev ua haujlwm siab heev. Tam sim no, tus yam ntxwv no yuav tsum ua raws li GOST R 52381-2005. No GOST sib tsoo log grit tau hloov cov ntaub ntawv dhau los nrog tus lej 3647.

Qhov txawv ntawm kev xaiv raws li GOST

Nws tsim nyog hais tias koj yuav tsum paub qhov cim los ntawm ob daim ntawv, vim nws tseem nyob ntawm ntau cov qauv qub. Raws li GOST 3647-80, granularity ntawm lub voj voog yog qhia nyob rau hauv units uas sib npaug rau 10 microns, piv txwv li, 20=200 microns. Yog hais tias muaj pes tsawg leeg muaj micropowder, ces tsab ntawv M yog ntxiv rau micron. Raws li cov qauv tshiab, cov nplej loj ntawm lub voj voog yog qhia los ntawm tsab ntawv F nrog tus lej.

Cia peb hais, raws li tus qauv qub, qhov granularity ntawm lub voj voog yog qhia los ntawm tus lej 200, uas qhov nruab nrab yog 2500-2000 microns. Raws li GOST tshiab, tib lub voj voog yuav raug xaiv raws li F8 lossis F10. Ua piv txwvQhov loj ntawm thawj lub voj voog yog 2460 µm, thiab qhov thib ob yog 2085 µm.

Tsev hom

Raws li nws tau dhau los ua kom pom tseeb, qhov kev huv ntawm qhov chaw yuav tsum xuab zeb nyob ntawm seb qhov luaj li cas ntawm cov khoom siv abrasive. Txawm li cas los xij, nws tsim nyog hais tias kuj tseem muaj cov nplej sib txawv hauv lawv daim ntawv. Lawv tuaj yeem nthuav tawm nyob rau hauv daim ntawv ntawm intergrowths los yog me me crystalline fragments nrog ib tug arbitrary zoo. Muaj cov kev sib tsoo zoo, uas tsis yog tsuas yog muaj cov qoob loo zoo xwb, tab sis cov nplej nws tus kheej tau nthuav tawm nyob rau hauv daim ntawv ntawm cov siv lead ua puv. Yog hais tias peb tham txog qhov parameter ntawm grain nws tus kheej rau lub sib tsoo log, ces nws yog tsim nyog hais txog peb lub ntsiab tsis: thickness, dav thiab ntev ntawm grain.

Txawm li cas los xij, tam sim no tsim nyog sau cia ntawm no tias cov kws tshaj lij hauv daim teb no feem ntau siv dav raws li qhov tseem ceeb thiab tsuas yog tus yam ntxwv. Nyob ntawm seb qhov luaj li cas ntawm cov nplej, nws yuav nyob ntawm seb cov khoom siv ntau npaum li cas lub log tuaj yeem tshem tawm hauv ib qho dhau los, thiab yog li tag nrho cov kev ua tau zoo ntawm lub log sib tsoo.

Yog tias peb tham txog kev txiav txim siab lub cim ntawm cov khoom, ces nws yooj yim heev. Lub ntsiab lus ntawm graininess marking yog raws li nram no: lub prefix qhia ib tug lej qhia ntawm tus yam ntxwv. Qhov siab dua tus lej teev, qhov zoo dua ntawm cov khoom siv abrasive.

pob zeb diamond cuab yeej

Cov log uas kim tshaj plaws thiab zoo rau cov khoom sib tsoo yog pob zeb diamond. Cov khoom siv no muaj xws li qhov concentration ntawm cov pob zeb diamond txheej, uas tau qhia nyob rau hauv tus naj npawb ntawm pob zeb diamond ib cubic millimeter ntawm hmoov.abrasive txheej. Qhov no parameter yog suav hais tias yog ib qho ntawm cov tseem ceeb, raws li nws cuam tshuam cov efficiency thiab profitability. Nws yog tsim nyog hais tias qhov qhia tau hais tias ncaj qha nyob ntawm qhov loj ntawm cov pob zeb diamond sib tsoo log. Hauv lwm lo lus, qhov siab dua qhov grit Performance index, nrog rau qhov nyuaj ntawm cov khoom yuav tsum tau ua, cov pob zeb diamond muaju nyob rau hauv txheej abrasive kuj yuav nce.

Hnub no, ntau pab pawg ntawm pob zeb diamond log tau tsim. Lawv tuaj yeem muaj 150-, 100-, 75-, 50- thiab 25% concentration ntawm pob zeb diamond. Tam sim no, 100% concentration yog suav tias yog muaj 4.39 carats. Ib carat yog sib npaug rau 0.2 grams muaj nyob rau hauv 1 cubic centimeter.

Grit rau pob zeb diamond log

Sib tsoo rau pob zeb diamond sib tsoo lub log yog qhov loj ntawm pob zeb diamond nplej lawv tus kheej hauv cov txheej abrasive lossis intergrowths ntawm cov muaju. Peb qhov ntsuas tseem ceeb yog peb qhov ntsuas tib yam li cov nplej zoo tib yam, tab sis ntawm no, ib yam nkaus, tsuas yog qhov dav yog coj mus rau hauv tus account. Grit rau pob zeb diamond log yog xaiv raws li hom roughness yuav tsum nyob rau hauv qhov kawg, ntawm hom khoom thiab qhov loj ntawm qhov nyiaj pub dawb.

Thaum ntxov nws tau hais tias nrog kev txo qis ntawm cov nplej, qhov zoo ntawm kev sib tsoo nce. Qhov no muaj tseeb, txawm li cas los xij, cov nplej zoo tsis yog ib txwm nyiam. Qhov tseeb yog tias kev siv cov cuab yeej zoo li no ua rau lawv muaj zog clogging, thiab cov txheej txheem kho yuav raug cauterized thaum lub sij hawm sib tsoo. Yog tias peb tham txog kev tsim khoom, ces cov nplej me me kuj cuam tshuam rau qhov ntsuas no.

Hnub no, muaj plaub yam tseem ceeb rau hauv cov pob zeb diamond sib tsoo log, nyob ntawm lawv cov grit. Zoo 100/80, Nruab Nrab 125/100, Coarse 160/125, Loj 200/165.

Cov log zoo zoo yog siv los ua kom tiav lwm yam cuab yeej xws li riam, chisels lossis lwm yam cuab yeej. Cov pab pawg nruab nrab yog qhov zoo rau kev ua kom pom tseeb ntawm txhua qhov chaw txiav, thaum lub log loj dua twb tau thov ncaj qha rau saum txheej.

ntiaj teb

Sandpaper yog suav tias yog cov khoom tsim nyog tshaj plaws rau kev ua ntoo. Txawm li cas los xij, lub voj voog yuav zoo muaj ob qho tib si polymer thiab hlau txhuam. Tsis tas li ntawd, koj tuaj yeem siv cov cuab yeej tsoos nrog cov nplej. Yog hais tias nws yog tsim nyog los nqa tawm ib tug loj tev ntawm ntoo, ces ib tug grit ntawm 40 mus rau 60 yuav tsum tau, rau nruab nrab tu, daim duab nce los ntawm 20 thiab ranges ntawm 60 mus rau 80. Qhov zoo tshaj plaws grit yog los ntawm 100 mus rau 120 thiab yog siv rau kev sib tsoo nto.

Ntxiv rau, ib yam li cov hlau, koj yuav tsum xaiv qhov zoo grit rau ntoo, nyob ntawm seb yuav ua li cas.