Ib tug neeg ib txwm nug, yog vim li cas engineering drawings thiab mechanical drawings xiav? Tej zaum txhua tus paub tias lo lus blueprint los ntawm qhov no. Qhov tseeb, yog vim li cas vim li cas cov duab kos xiav yog vim lawv txoj kev kos duab. Cov duab kos no tsis yog kos lossis luam tawm, tab sis "qhuav". Tej zaum nyob rau hauv txoj kev thiab alleys, koj yeej ib txwm pom cov paib xws li luam ntawv cov duab pasted rau ntawm qhov nkag ntawm ib co printing tsev, thiab qhov no yog qhov lawv hais txog.
Cov ntawv luam ntawv, feem ntau hu ua "blueprint paper", yog ib hom tshuaj txheej txheej ua ntawv, tshwj xeeb yog siv rau ntau yam engineering tsim thiab tshuab luam ntawv, thiab yog ib qho khoom tseem ceeb hauv kev tsim, kev tshawb fawb thiab kev tsim kho.
Kev kos duab xiav architectural engineering yog ib hom kev kos duab loj tsim nyob rau hauv lub sijhawm tsis muaj computer graphics.
Tus kws kos duab kos duab nrog tus cwj mem carbon rau ntawm daim ntawv pob tshab hu ua "sulfuric acid paper". Lub hom phiaj yog los pab txhawb kev luam ntawv ntawm ntau cov duab kos zoo ib yam nrog "lub tshuab luam ntawv" thaum siv ntau cov duab kos rau yav tom ntej.
Cov xim xiav ntawm daim duab kos yog vim lub hauv paus ntsiab lus ntawm "lub tshuab luam ntawv" ammonia dej fixation thiab photosensitive, thiab tsis muaj lwm yam ntsiab lus.
Tam sim no, cov neeg sau ntawv tsis tshua pom cov pleev xim rau tes, thiab txhua tus siv CAD los ua kom tiav cov duab kos duab ntawm ntau yam qauv. Nws tseem tuaj yeem luam tawm xim.
Txawm li cas los xij, txhawm rau luam tawm ntau tus tib daim duab, cov neeg tsim qauv tseem siv yav dhau los "txoj kev luam ntawv". Tus nqi kos duab ntawm txoj kev no tsawg heev, thiab tus nqi luam ntawv A 1- qhov loj ntawm daim duab rau hauv daim ntawv tsis yog siab. Thiab cov efficiency yog siab heev. Nws tsuas yog siv ob peb feeb los luam daim duab A1- qhov loj me rau hauv daim ntawv qhia.
Yog tias koj tsis xav kom cov duab kos yog xiav heev, koj tuaj yeem ua rau lub sijhawm luam ntawv qeeb; txwv tsis pub, lub sij hawm luam ntawv sai dua, qhov bluer nws yuav yog.
Blueprint paper (blueprint yaper) tseem hu ua ntawv luam ntawv, thiab diazonium ntsev zoo li luam ntawv los yog diazo photosensitive ntawv. Nws yog ib yam ntawm cov ntawv ua tiav los ntawm kev siv daim ntawv qhia zaub mov raws li daim ntawv hauv paus, thiab tom qab ntawd txheej txheej ntawm daim ntawv qhuav nrog tus neeg sawv cev photosensitive, uas yog yob ntawv.
Lub hauv paus ntawv yuav tsum muaj lub zog zoo ntub dej tensile thiab nqus cov khoom, tsawg deformation, thiab tsis muaj cov tshuaj uas cuam tshuam rau cov khoom ntawm cov khoom siv sensory. Nws feem ntau yog ua los ntawm paj rwb pulp los yog bleached ntoo pulp ntawm lub tshuab ntawv. Daim ntawv qhia zaub mov ua los ntawm cov ntawv tsim nyog muaj cov yam ntxwv ntawm daim ntawv du, txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej
Printing drawings yog muab faib ua txoj kev siv:
1. Kev luam ntawv ntub dej, uas yog, ntxuav thiab ziab cov duab kos, uas yog, hlau ntsev kos duab, cov txheej txheem photoreduction yog ntxuav nrog dej, thiab qee chav tseem siv cov qauv no.
2. Kev luam ntawv qhuav, uas yog, luam ntawv los ntawm kev ntxiv diazo, lossis hu ua ammonia fumigation. Nws cov txheej txheem photoreduction siv cov roj ammonia, thiab feem ntau ntawm cov khoom siv yav dhau los ntawm kev ua lag luam yog hom luam ntawv no.
3. Muaj ob hom kev luam ntawv semi-ntub, ib qho yog siv rau ob qho tib si sensitizer thiab tus neeg saib xyuas kom txo tau ntawm daim ntawv, thiab muab ob npaug rau nws los ua ib daim duab thaum ua rhiab; lwm qhov yog siv rau kev luam ntawv qhuav, thiab cov dej ammonia yog evaporated rau hauv pos huab thaum luam ntawv. Ua rau hauv daim duab thaum ziab.
Hais txog kab xim, muaj:
1. Cov kab xiav ntawm cov keeb kwm dawb, kab dawb ntawm xiav keeb kwm yav dhau, thiab cov kab xim av ntawm cov keeb kwm dawb yog cov duab ntub dej.
2. Cov kab liab liab ntawm keeb kwm xiav, kab xim av ntawm cov keeb kwm dawb, thiab cov kab dub ntawm cov keeb kwm dawb yog cov duab kos duab qhuav. Muaj feem ntau cov kab ntshav ntawm cov keeb kwm xiav ntawm kev ua lag luam, thiab qee qhov chaw muaj cov kab xiav lossis dub ntawm cov keeb kwm dawb.
Los ntawm txheej txheej: muaj ob hom txheej txheej ib leeg thiab ob sab txheej:
1. Ib txheej txheej txheej muaj ob lub ntsiab lus: ib qho yog siv cov kua photosensitive nkaus xwb ntawm daim ntawv siv; lwm qhov yog siv cov tshuaj photosensitive ntawm ib sab thiab boric acid dej ntawm sab nraud kom tshem tawm warping ntawm daim ntawv thiab nce lub sijhawm cia. Qhov tseeb, nws yog coated ntawm ob sab. Vim hais tias tsuas yog ib sab yog photosensitive, nws tseem hu ua ib leeg-sided coated khau, uas yog cov ntaub ntawv nyob rau hauv ntau qhov chaw.
2. Ob tog txheej txheej txhais tau hais tias ob sab yog coated nrog tus neeg sawv cev photosensitive, thiab cov duab tuaj yeem luam tawm ntawm ob sab, feem ntau kom txo cov ntim ntawm cov ntaub ntawv thiab txuag cov ntawv. Nyob rau hauv kaum xyoo dhau los, txoj kev loj hlob ntawm txoj kev yog xiav kab ntawm dawb keeb kwm yav dhau thiab ob-sided txheej, vim hais tias cov photosensitive ceev ntawm kab xiav yog 1/5 sai dua li cov kab liab liab thaum lub sij hawm cia tsis hloov, thiab xim. yog ci, thiab cov photosensitive ceev yog siab ntev. Lub degree yog loj.
