Tib cov xim pleev xim uas kov yeej tus ntsuj plig ntawm tus kws kos duab

2024 Tus sau: Leah Sherlock | [email protected]. Kawg hloov kho: 2023-12-17 05:37

Cov xim roj yog qhov tshwj xeeb tshaj yog nrog cov kws paub txog kev ua yeeb yam: cov duab kos duab feem ntau pleev xim nrog lawv txhawm rau khaws cov tsim rau ntau pua xyoo. Cov roj ziab yog ib txwm muaj nyob rau hauv lawv cov muaj pes tsawg leeg - ib zaj duab xis-forming tshuaj raws li zaub roj.

Cov xim roj yog cov khoom zoo tsuas yog tias lawv muaj cov qib siab tshaj plaws ntawm cov roj kom qhuav. Piv nrog rau lwm hom dyes, lawv muaj tus nqi qis. Lawv cov txiaj ntsig tsis xaus rau qhov ntawd: thaum siv, cov xim roj tau hloov mus rau hauv cov txheej txheem ib puag ncig. Linen ziab roj yog yooj yim heev rau tha xim, vim hais tias nrog nws cov kev pab xim pleev xim rau ib tug waterproof zaj duab xis. Txhawm rau siv cov xim pleev xim rau daim ntaub, nws yog qhov yuav tsum tau ua kom paub tseeb tias qhov chaw tsis muaj impurities ntau dhau thiab cov primer tau qhuav zoo. Nyob rau hauv cov kev tshwm sim uas uncured xim nyob rau ntawm daim tawv nqaij, nws yuav yooj yim tshem tawm nrog ib daim ntaub dipped nyob rau hauv zaub roj. Nws yog qhov zoo tshaj plaws los pleev xim rau cov hnab looj tes lossis siv cov khoom tsim tshwj xeeb.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov xim roj yuav tsum muab cia nrog lub hau kaw kom nruj rau hauv qhov chaw qhuav thiab tsaus: li no lawv yuav khaws lawv cov khoom ntev dua. RauTxhawm rau dilute cov xim tuab heev, koj yuav tsum siv cov kuab tshuaj tshwj xeeb, turpentine lossis dab dawb. Koj tuaj yeem siv roj pleev xim rau hauv txhua txoj kev: nrog txhuam los yog cov menyuam. Feem ntau, cov txhuam hniav me me yog siv rau daim ntawv thov.

Nyob rau hauv chav tsev kub, xim qhuav rau tsawg kawg ib hnub: lawv feem ntau khaws lawv cov yas los ntawm ob mus rau peb hnub. Yog tias lub hauv paus rau daim duab yog cov khoom ntoo, tom qab cov xim tawv tawv, evaporation ntawm qhov chaw ntawm lub hauv paus yuav tsis dhau. Thaum xaiv cov xim, koj yuav tsum tau qhia meej txog qhov muaj pes tsawg leeg, vim tias nws zoo ib yam rau cov roj enamel, tab sis ntxiv rau cov roj kom qhuav, nws muaj cov tshuaj yeeb yaj kiab tsim cov tshuaj. Cov enamels qhuav sai dua li cov xim roj, yog li lawv nyuaj heev los siv rau kev pleev xim.

Qhov zoo tshaj plaws thickness ntawm cov xim txheej yog los ntawm 1 hli mus rau 0.5 cm. Xws li qhov yuam kev yuav cuam tshuam rau kev ua haujlwm ntev, yuav ua rau nws puas tsuaj sai. Nws raug nquahu kom txwv cov txheej txheem ntawm kev pleev xim ib daim duab los ntawm lub sijhawm: tsim kom txog thaum cov roj pleev xim rau ntawm daim ntaub pib poob lawv qhov qub qub.

Txhawm rau zam kev tsim cov txheej npub ntawm qhov chaw, tos lub sijhawm txij thaum pib ntawm cov xim pleev xim rau lawv qhov kawg hardening. Nws yog qhov zoo tshaj plaws los hloov kho tom qab thawj lub tsho tiv no ntawm cov xim tau qhuav tag. Yog hais tias cov xim tsuas qhuav qhuav, tab sis tsis hardened, duacov txheej txheej pleev xim yuav qhuav npub vim cov txheej hauv qab yuav rub cov roj tawm ntawm nws, depriving nws ntawm qhov tsim nyog binder. Qhov no tuaj yeem ua rau pom cov kab nrib pleb thiab cov voids tsis xav tau: kev ziab ib txhij ntawm ob txheej yuav tshwm sim ntawm tus nqi sib txawv.

Nco ntsoov tias qhov txiaj ntsig tsis txaus ntseeg ntawm cov xim pleev xim pleev xim yog ua haujlwm rau cov dej noo thiab ntau yam tshuaj sib cuam tshuam, yog li cov xim pleev xim roj yuav tsis hloov lawv cov tsos rau xyoo.