Sandpaper feem ntau yog siv los ua kom tiav thiab roughing nto. Cov khoom siv muaj cov yam ntxwv sib txawv, qhov sib txawv ntawm qhov ntau thiab tsawg, hom abrasive siv.
Cov khoom siv yog dab tsi?
Daim ntawv elastic abrasive lossis ntaub-raws li, qhov chaw ua haujlwm uas tau npog nrog cov hmoov granular, yog ntawv xuab zeb. Cov khoom siv no yog siv los ua cov ntoo, hlau, yas, iav, thiab lwm yam khoom siv.
keeb kwm kev tsim kho
Raws li cov ntaub ntawv sau tseg, cov ntawv xuab zeb yog thawj zaug siv los ntawm Suav cov kws ua haujlwm hauv xyoo pua 13th. Sandpaper tau tsim los ntawm kev kho cov xuab zeb sib tov, crushed cov noob thiab cov plhaub nrog cov hmoov txhuv nplej siab ntawm cov tawv tawv tawv. Feem ntau, cov khoom me me ntawm cov iav tawg tau siv los ua cov abrasive rau kev ua haujlwm ntxhib.
Thawj qhov kev tsim cov ntawv xuab zeb tau tshwm sim hauv xyoo 1833, thaum muaj patent rau kev tsim cov ntawv tshiabCov khoom raug xa mus rau Asmeskas tus lag luam Isaac Fisher los ntawm lub nroog Springfield (Vermont).
Ib zaug nrog kev txhim kho thev naus laus zis, cov ntawv xuab zeb kuj tau txhim kho. Txij li thaum pib ntawm lub xyoo pua 20th, active kev loj hlob tau ua nyob rau hauv cov teb chaws Europe, thaum lub sij hawm qhov zoo ntawm ib tug neeg abrasive cov ntaub ntawv tau kawm. Tom qab ntawd, cov txiaj ntsig ntawm kev ua haujlwm tau ua lub hauv paus rau kev tsim cov ntawv xuab zeb uas tsis muaj dej noo. Hom ntawv xuab zeb no tau ua ib lub kiv puag ncig me me hauv kev lag luam tsheb. Tshwj xeeb, nws qhib qhov ua tau sai thiab ua tiav ntawm qhov chaw.
Daim ntawv thov nta
Thaum ua qhov chaw nrog cov tawv nqaij abrasive, qee cov cai yuav tsum ua raws. Nyob rau hauv cov chav kawm ntawm kev ua hauj lwm los kho qhov tsis xws luag, nws yog thawj qhov tsim nyog los siv cov tawv nqaij coarsest. Coarse grit haum rau roughing ntoo, tshem tawm cov xim qub, xeb txheej.
Cov ntawv xuab zeb zoo yog siv rau theem ntawm kev sib tsoo zoo, polishing ntawm hlau, pleev xim rau qhov chaw. Rau stripping yas, daim ntawv xuab zeb nrog qhov tsawg kawg nkaus grit yog qhov zoo tagnrho.
Hnub no, cov ntawv xuab zeb dej tsis muaj dej kuj tseem muaj rau cov neeg siv khoom siv tes ua, kev siv uas zam qhov tshwm sim ntawm cov hmoov av ntau thaum ua haujlwm. Ua tsaug rau kev sib tsoo ntub dej, qhov chaw yuav tsum tau ua kom tau qhov smoothest, zoo nkauj tshaj plaws.
Ntse
Ntawm cov kev txhais cov yam ntxwv ntawm abrasivedaim tawv nqaij highlight cov hauv qab no:
- Base material.
- Grain values.
- Txoj kev tsim cov hauv paus uas siv los ua nplej.
Sandpaper - yam
Cov tawv nqaij sib tsoo tau muab faib ua ntau hom sib cais, feem ntau raws li lub hauv paus uas siv cov abrasive. Feem ntau yog cov khoom siv ntawv. Cov tshuaj no tshwj xeeb tshaj yog pheej yig thiab tsim nyog hnav tsis kam. Cov khoom lag luam feem ntau ntawm cov phiaj xwm no yog cov tshuaj tiv thaiv dej, thiab tseem qhib rau kev siv cov nplej tsawg tshaj plaws.
Npuag-raws li cov ntawv xuab zeb muaj qhov hnav tsis kam. Ua tsaug rau kev siv cov resins tshwj xeeb, nws tuaj yeem muab cov dej noo-resistant zoo. Tsis tas li ntawd, cov ntaub ntawv rov qab ua rau cov ntaub ntawv elastic heev.
Xav txog cov lus nug ntawm cov ntawv xuab zeb zoo li cas (cov khoom siv), nws tsis tuaj yeem tsis nco qab cov khoom sib xyaw. Xws li cov tawv nqaij sib tsoo yog qhov txawv ntawm qhov zoo ntawm ob qho kev xaiv saum toj no. Li no tus nqi siab ntawm cov khoom zoo li no. Nyob rau hauv cov nqe lus ntawm daim ntawv thov, ua ke abrasives muaj peev xwm tiv taus cov neeg kho tshuab kev nyuaj siab.
Raws li cov nplej loj, cov ntawv xuab zeb hauv qab no yog qhov txawv:
- Coarse-grained - siv rau kev yooj yim, ntxhib ua cov ntaub ntawv, tshem tawm cov kab mob, xim, cuam tshuam corrosion. Sanding nrogsiv cov abrasives ntawm pawg no tawm qhov tob tob, textured khawb ntawm qhov chaw.
- Medium-grained - siv thaum nws tsim nyog los ua cov khoom nruab nrab ntawm cov khoom. Sanding pliable nto nrog cov ntawv, xws li ntoo ntuj, tso cai rau koj kom qib thiab du cov dav hlau.
- Fine-grained - yog cov cuab yeej zoo tshaj plaws rau kev npaj cov ntaub ntawv rau kev ua cov xim thiab cov kua roj vanish. Cov tawv nqaij zoo li no yuav yooj yim tshem tawm me me khawb thiab me me ntawm qhov chaw.
Type of abrasive
Cov hauv paus hauv qab no yog siv los ua cov abrasives hauv kev tsim cov ntawv xuab zeb:
- Garnet yog ib yam khoom tshwm sim uas yog cov tshuaj zoo tshaj plaws rau kev ua tiav cov ntoo ntuj.
- Silicon carbide yog lub zog siab tshaj plaws abrasive. Cov tawv nqaij coated nrog cov nplej zoo li no yog cov cuab yeej tseem ceeb rau kev ua haujlwm ntawm cov hlau thiab yas. Carbide abrasive yog tsim rau tu cov xim pleev xim rau qhov chaw, sib tsoo fiberglass.
- Ceramic - tawv nrog cov txheej txheej no yog siv rau theem ntawm kev tsim cov qauv ntawm cov ntoo, nrog rau thaum tshem tawm qhov tsis xws luag. Hauv lwm lo lus, cov ntawv xuab zeb no yog siv thaum ua haujlwm ntxhib. Feem ntau, cov khoom ntawm cov phiaj xwm no tuaj yeem pom nyob rau hauv daim ntawv ntawm cov hlua khi hlua khi, uas yog siv rau kev kho tshuab nto.
- Aluminium oxide - tshwj xeeb tshaj yog txawvtsis yooj yim qauv. Thaum tsim kev sib txhuam nrog cov npoo, cov abrasive tsim cov npoo tshiab. Yog li ntawd, cov tawv nqaij ntawm txoj kev npaj no muaj lub neej ua haujlwm zoo tiag tiag. Cov ntawv xuab zeb no feem ntau yog siv hauv kev ua ntoo thiab ntoo ua haujlwm.
Xav paub ntxiv
Ntxiv rau qhov loj me, cov ntaub ntawv ntxiv hauv qab no yuav tshwm sim ntawm pob ntawv xuab zeb:
- Lub Hom Phiaj - rau kev ua cov hlau nto lossis cov ntaub ntawv pliable ntau dua ntawm qhov tsis muaj zog.
- Web parameters - ntev thiab dav.
- Qhov muaj pes tsawg leeg ntawm cov abrasive thiab nws feem.
- Qhov xwm ntawm cov nplaum siv los kho cov abrasive (synthetics, amber varnish, formaldehyde resin, ua ke daim ntawv cog lus).
- Qib ntawm hnav tsis kam ntawm cov khoom.
Sandpaper - nqe
Daim ntawv abrasive nqi ntau npaum li cas hauv kev lag luam hauv tsev? Tus nqi ntawm cov ntawv nplua-grained cov khoom lag luam pib ntawm li 30 rubles ib kab 'meter'. Tus nqi ntawm ib daim ntaub emery ruaj khov rau ntawm cov ntaub substrate yog li ntawm 150-200 rubles ib kab meter thiab nws txawv nyob ntawm qhov feem thiab hom abrasive siv.
In xaus
Muab piv rau lwm cov xov xwm sib tsoo, tshwj xeeb tshaj yog cov txhuam hniav hlau, sib tsoo lub log, cov ntawv xuab zeb yog cov khoom siv pheej yig heev uas tuaj yeem siv tau rau cov neeg siv khoom dav tshaj plaws. Hnub nodaim tawv nqaij abrasive yog muab nyob rau hauv daim ntawv ntawm strips, voj voog, nplooj ntawv, tapes. Tag nrho cov no pab txhawb rau nws txoj haujlwm hauv ntau yam haujlwm, kev ua haujlwm ntawm tus kheej thiab siv cov cuab yeej hluav taws xob.
