Yuav ua li cas xaiv tus naj npawb ntawm cov ntawv xuab zeb rau kev sib tsoo tsheb

Sab nraub qaum ntawm cov yob, cov ntawv los yog cov sib tsoo tshwj xeeb yog cim. Nws ua raws li Lavxias teb sab GOSTs ntawm 1980 thiab 2005 (tsab ntawv "M" los yog "H") thiab ISO thoob ntiaj teb tus qauv qauv (ntawv "P" nyob rau hauv lub cim).

Cov neeg tsav tsheb uas ua haujlwm rau lawv lub tsheb ntawm lawv tus kheej tsis ntshai txawm tias pleev xim rau lub cev. Ib txoj kev nyuaj, txawm li cas los xij, yuav tsum muaj kev paub zoo, piv txwv li, pes tsawg daim ntawv xuab zeb xav tau rau kev pleev xim, sib tsoo, polishing lub tsheb. Lub ncauj lus tsim nyog tshawb nrhiav.

Hom abrasive tawv

Sandpaper (sandpaper) yog cov khoom sib tsoo rau muab cov qauv rau saum npoo ua ntej pleev xim thiab coj nws ci thiab ci tom qab. Ua ntej koj pom cov xov tooj ntawm cov ntawv xuab zeb rau pleev xim rau lub tsheb, koj yuav tsum nkag siab txog cov khoom siv abrasive. Kev faib tawm mus raws lub hauv paus, uas yog siv cov kua nplaum los yog mastic.

Muaj cov hom tawv nqaij hauv qab no:

• Ntawv. Qhov no yog qhov kev xaiv ntau tshaj plaws thiab kev lag luam, tso cai rau koj siv cov chips me me rau ntawm daim ntawv.
• Npuag raws. Cov ntawv xuab zeb no yog elastic thiab hnav-resistant, uas cuam tshuam rau tus nqi.
• Ua ke. Kev sib xyaw ua ke ntawm ob qho kev xaiv yav dhau los tau nqus cov khoom zoo tshaj plaws: kev ua kom yooj yim - los ntawm cov ntaub hauv paus, muaj peev xwm siv tau zoo abrasive - los ntawm ib daim ntawv.

Abrasive daim ntaub ntawm ib daim ntaub

Sandpaper yog tsim nyob rau hauv daim ntawv los yog yob. Txhawm rau xaiv tus naj npawb ntawm cov ntawv xuab zeb rau kev sib tsoo lub tsheb, koj yuav tsum xub xa mus rau lub tswv yim ntawm "grain".

Nplej cim

"Grains" - abrasive hmoov - muaj cov yam ntxwv sib txawv:

• qhov loj;
• cov khoom ntawm kev tsim khoom;
• daim ntawv thov ceev ib square inch.

Cov kev txwv no pab koj xaiv cov ntawv xov xwm xav tau rau polishing lub tsheb.

Grit yog ntsuas hauv micrometers (µm). Qhov gradation ntawm cov khoom emery mus raws li qhov loj me ntawm cov abrasive:

• Loj. Kev tsim tus lej - los ntawm 12 mus rau 80. Daim ntawv yog siv rau hauv kev npaj ua haujlwm ntxhib, kev ua haujlwm tseem ceeb ntawm thaj chaw kho. Loj grain evens tawm chips, welds.
• Nruab nrab. Tsim los ntawm cov cim los ntawm 80 txog 160, nws yog siv rau kev kho kom zoo ntawm lub cev, kev npaj zaum kawg rau putty. Los ntawm cov ntsuas no ntawm granularity, tus naj npawb ntawm cov ntawv xuab zeb rau tha xim lub tsheb raug xaiv.
• Me me. Qhov loj tshaj plaws ntawm abrasive hmoov yog concentrated nyob rau hauv ib square inch, xws li qhov loj ntawm 160 mus rau 1400. Nyob rau hauv cov kev txwv no, muaj ib tug xov tooj ntawm cov xuab zeb rau lub tsheb polishing, uas yuav tsum tau nyob rau hauv lub finishing theem ntawm painting.

Daim duab qhia ib lub rooj ntawm sanding grits rau cov khoom sib txawv.

Sanding grit rooj rau cov khoom sib txawv

Cov lus qhia tau hais tias cov naj npawb ntawm cov ntawv xuab zeb rau stripping tom qab muab lub tsheb pw hauv thaj tsam ntawm 180 txog 240.

Sab nraub qaum ntawm cov yob, cov ntawv los yog cov sib tsoo tshwj xeeb yog cim.

Sandpaper marking

Nws ua raws li Lavxias teb sab GOSTs ntawm 1980 thiab 2005 (tsab ntawv "M" los yog "H") thiab ISO thoob ntiaj teb tus qauv qauv (ntawv "P" nyob rau hauv lub cim).

Siv abrasives

Raws li ib tug crumb (hmoov) rau lub hauv paus, manufacturers siv pob zeb, xuab zeb, plhaub pob zeb thiab cov khoom siv polymer.

Nrov abrasives:

• Garnet. Ntuj keeb kwm muab softness thiab elasticity rau emery, uas yog feem ntau siv rau kev ua ntoo.
• Silicon carbide. Ib hom hmoov universal rau kev ua hauj lwm nrog paintwork, hlau nto.
• Ceramic crumb. Ib qho khoom siv muaj zog heev yog xav tau rau kev tsim cov khoom.
• Zircon corundum. Resistant abrasive feem ntau yog ua nyob rau hauv daim ntawv ntawm ib txoj siv rau grinders.
• Alumina. Lub durability ntawm abrasive tso cai rau nws siv rau sharpening txiav ntug.

Silicon Carbide Sandpaper

Thaum xaiv cov ntawv xuab zeb rau tha xim tsheb, xyuam xim rau silicon carbide abrasive.

Yuav ua li cas sandpaper kom zoo

Lub tshuab yog yooj yim. Qhov tseem ceeb yog qhov tseeb thiab ua siab ntev. Rau kev xuab zeb, koj yuav tsum tau siv cov ntaub ntawv sib txawv rau kev pleev xim lub tsheb - los ntawm qhov tsawg tshaj plaws mus rau cov khoom sib tsoo loj tshaj plaws.

Cov txheej txheem nta

Ua hauj lwm hauv ib lub thawv huv, qhuav, zoo-kub. Ua kom ntub dej, npog hauv pem teb thiab phab ntsa nrog cov yas qhwv.

Npaj tag nrho, tiv thaiv kab mob ua pa nrog lub tshuab ua pa, qhov muag nrog tsom iav. Sau cov crumb tsim thaum lub sij hawm sanding txheej txheem nrog lub tshuab nqus tsev vacuum.

Npaj ua haujlwm

Qhov kawg tshwm sim ntawm staining ncaj qha nyob ntawm theem npaj:

1. Ntxuav koj lub tsheb ntawm lub tsheb ntxuav ua ntej.
2. Nyob rau hauv lub chaw nres tsheb, tshem tawm tag nrho cov yas, chrome qhov chaw uas tsis muaj feem xyuam rau tha xim.
3. Ntxuav lub tsheb dua nrog tshuaj zawv plaub hau, so qhuav, degrease nrog tus ntsuj plig dawb.
4. Tshawb xyuas lub cev, ntsuas qhov ntsuas kev ua haujlwm. Nws yog qhov ua tau tias tsis yog tag nrho cheeb tsam yuav tsum tau ntxuav, pleev xim thiab xuab zeb.
5. Brew qhov chaw uas xav tau nws, ncaj nws.

Npaj ua haujlwm

Tom qab ntawd ntxuav chav dua.

Nta ntawm phau ntawv sib tsoo

Txhawm rau pab txhawb kev ua haujlwm, npaj cov xuab zeb ua ntej - ib qho thaiv nrog cov ntawv xuab zeb tuav. Koj tuaj yeem yuav cov cuab yeej lossis ua rau koj tus kheej los ntawm cov ntaub ntawv improvised: ib daim ntoo, daim txhuam cev tawv.

Thawj theem ntawm stripping lub cev ntawm lub tsheb mechanics thiab cov neeg pleev kob yog hu ua matting. Nws yog qhov yooj yim dua rau polish hla thaj chaw loj siv lub tshuab sib tsoo, tab sis qhov twg lub cuab yeej tsis tuaj yeem nkag tau, nws yog qhov zoo dua los txhuam nws ntawm tes. Tus naj npawb ntawm cov ntawv xuab zeb rau matting lub tsheb yog P220-240.

Tom qab cov txheej txheem no, dents, khawb, thiab lwm yam tsis xws luag tau pom meej meej. Khiav ntawm daim tawv nqaij raws li tus lej P120: nws yuav txawm tawm khawb, cov npoo ntse ntawm cov xim, ntxuav cov xeb.

Sanding tes

Lub hom phiaj ntawm cov txheej txheem nyob rau theem no tsis yog qhov chaw du. Txhawm rau kom zoo dua adhesion ntawm putty nrog lub cev hlau, uniform micro-scratches yuav tsum nyob twj ywm rau tom kawg.

Tsis txhob hnov ​​​​qab nqus cov khib nyiab. Thaum lub saum npoo yog npaj, putty nws, cia nws qhuav. Xaiv tus naj npawb ntawm cov ntawv xuab zeb rau kev sib tsoo tom qab tso lub tsheb, mus rau tag nrho cov panels.

Ib txheej ntawm primer tsis txaus, yog li npog lub cev nrog ib tug thib ob, yog tias tsim nyog, thiab ib txheej thib peb, txhua zaus sanding qhov chaw kho.

Yuav ua li cas grind putty ntawm lub tsheb nrog ib tug grinder

Qhov txiaj ntsig zoo tshaj plaws yuav ua tiav nrog eccentric orbital sander. Cov cuab yeej hluav taws xob siv tau yooj yim: koj tsuas yog yuav tsum tau txuas cov sib tsoo tshwj xeeb nrog lub qhov txuas rau lub tshuab. Tom qab ntawd tsav tsheb raws qhov chaw nyob rau hauv cov lus qhia xaiv xaiv.

Cov cuab yeej yog muab nrog cov plua plav collector uas nqus cov seem ntawm cov abrasive. Nws yog ib qho tseem ceeb uas yuav tsum xaiv tus naj npawb ntawm cov ntawv xuab zeb thiab cov nplej loj rau kev sib tsoo cov av ntawm lub tsheb, thiab qhov ceev thiab qhov zoo yuav muab los ntawm cov cuab yeej.

Sanding nrog ib tug grinder

Rau qhov loj tshaj plaws thiab smoothest cheeb tsam, ib tug siv sander yuav ua. Muab cov ntawv xuab zeb rau nws hauv daim ntawv ntawm canvas. Tom ntej no, tig rau ntawm lub cuab yeej thiab, tuav tus kov, tsav nws mus rau qhov raug. Nws yog ib qho tsim nyog xav txog lub zog ntawm lub cuab yeej: lub tshuab tuaj yeem zom tawm ntawm cov hlau loj.

Ob peb lub tswv yim ntxiv

High-quality sanding yog kab tias lub sijhawm npaj tseem ceeb ua ntej staining. Ntawm no kev paub thiab intuition ua lub luag haujlwm loj.

Nyeem kuj: Yuav ua li cas tshem tau nceb los ntawm lub cev ntawm lub tsheb VAZ 2108-2115 nrog koj tus kheej txhais tes

Cov lus qhia los ntawm kev paub txog tsheb mechanics:

• Yog tias tsis yog tag nrho lub cev yuav tsum tau xuab zeb, npog thaj tsam ze ntawm thaj chaw kho nrog daim kab xev npog.
• Thaum teem caij kho qhov chaw, tsis txhob ntshai mus ntes ib cheeb tsam dav dua qhov tsis xws luag.
• Ua ntej sanding, kho lub putty nrog ib tug dub tsim: nws yuav qhia qhov twg yuav ntxiv putties.
• Nco ntsoov khaws thiab ua haujlwm nrog cov tawv nqaij ntxhib, nruab nrab thiab nplua grit.
• Nws yog ib qho tsim nyog los zom cov hlau thiab putty nrog kev sib txawv ntawm lub cev: cov txheej txheem primer yog ib txwm softer thiab yuav yooj yim tshem tawm los ntawm kev txaus siab heev.
• Pib nrog cov ntawv xuab zeb ntxhib, tom qab ntawd nce cov ntawv xuab zeb rau polishing lub tsheb los ntawm 80-100 units.

Thaum lub sijhawm ua haujlwm, tshem cov plua plav, ua kom ntub dej.