Ntwav txhuam ntoo thiab nws cov variants

Ntwav txhuam ntoo kuj hu ua ntwav txhuam ntoo. Qhov no abrasive, ua grain khoom yog daim ntaub los yog daim ntawv, uas ib tug tshwj xeeb txheej ntawm abrasive hmoov. Ntwav txhuam ntoo yog siv raws li ib tug "phau ntawv" hom thiab nyob rau hauv lub tshuab, rau cov zauv (stripping) ntawm tag nrho cov txee uas tom qab luam, sanded, pleev xim rau, lacquered, etc. Nrog kev pab los ntawm nazhdachki yuav tau tshem tej kob qub, xeb. Feem ntau ntawm cov abrasive daim ntawv rolls muaj, tab sis muaj ntau tshaj kev xaiv, xws li abrasive ntaub nqus dej. Rau tu loj loj zoo txaus kom muaj muaj ib tug tshwj xeeb cork bar, uas yog txuas mus rau ntwav txhuam ntoo. Yog hais tias koj yuav tsum tau ntxuav hlau, yuav tsis ua tsis muaj ib tug laum, uas yuav pab raws li tus tsav rau cov rotating phaj ntawm cov hniav sib tsoo log thiab abrasive scheto ib tug.

Yog hais tias koj yog rau txawv hom phiaj xav tau ntwav txhuam ntoo, nws faib yuav pab koj xaiv ib tug uas suits koj zoo tshaj plaws. Yog li ntawd, cais Emery rau ib lub hauv paus hom. Cov tawv rau lub hauv paus ntawm daim ntawv yuav tsum yog cov pa los yog waterproof. Nyob rau hauv tas li ntawd, qhov no cov ntaub ntawv uas muaj peev xwm mas loj cov neeg kho tshuab kev nyuaj siab. Nws nqi yog tsawg tsawg, tab sis nws tsis yog heev coj-resistant thiab sai sai erased. Ntwav txhuam ntoo rau lub hauv paus ntawm ntaub (paj rwb los yog polyester) ib tug ntau ruaj, elastic thiab resistant mus ya raws. Tsis tas li ntawd abrasive daim ntawv tshwm sim raws li nyob rau hauv lub neej coj tau txais los sib nplaum thiab daim ntawv so ntswg. Tshwj xeeb tshaj yog cov khoom ntaub ntawv no yog ua rau tshwj xeeb Emery machines, abrasive discs rau lub hauv paus ntawm fiber.

Txawm li cas los, cov kev faib yuav tsis txaus los paub, nws yuav tsum tseem yuav tau nyob rau hauv view graininess. Hais tias nws yog tus tseem ceeb tshaj plaws yam ntxwv ntawm cov khoom no. Coated ntxhib no los txhuam Lub rougher, tsawg ib tug qhia txog nws txoj kev grain. Indicators ntawm lub coarsest ntwav txhuam ntoo comprise los ntawm 12 mus rau 16. Siv nws yog feem ntau muab tshem tawm los ntawm lub chaw uas kob qub, cov kua roj vanish, scraped cov kua roj vanish.

Qab nws yog tsawg ntxhib ntwav txhuam ntoo zeb index uas yog hom twg los ntawm 24 mus rau 40. Nws kuj yuav kuam xim. Tab sis daim tawv nqaij abrasiveness ntawm 60-80 twb tau muab siv tom qab tus nto ntxuav. Tej nazhdachkoy ntxhib sib tsoo yog ua. Yuav kom du thiab theem nto, thov lub ntwav txhuam ntoo nrog grain loj 80-150. Nws kuj yuav tshem laug tom qab ntxhib sib tsoo tsis xws luag, irregularities.

Abrasive daim ntawv rau finer zeb ntaub ntawv yog los ntawm 150 mus 320-feeb. Lawv kho nto nyob rau hauv lub kawg theem, tam sim ntawd ua ntej thiab tom qab lub primer ua ntej painting. Tom qab sanding nrog fine ntwav txhuam ntoo li cov ntoo nto yuav txig du. Tej zaum nws tsis txawm yuav tau pleev xim, tab sis cia li txaus los qhia cov kua roj vanish.

Txawm li cas los, muaj ib tug super-slim ntwav txhuam ntoo. Nws yog hom twg los ntawm 360 th rau 4000. Nws ntwav txhuam ntoo nulevka lub feem ntau "maj", thiab yog siv feem ntau rau polish twb pleev xim rau saum npoo av. Siv ib daim ntaub, nws yog ua tau los mus tshem tawm ruaj glossy sheen xim, kom tsum pauv rau qhov tsawg tshaj plaws kos, tshem tawm ntawd cog chaw.