Lub khw muag khoom niaj hnub no muaj cov xim thiab cov kua roj vanish, uas xav tau cov kuab tshuaj tshwj xeeb thiab cov thinners kom dilute. Nyob rau hauv muaj pes tsawg leeg, lawv yog cov organic thiab inorganic, thiab nyob rau hauv cov nqe lus ntawm evaporation tus nqi - ceev, universal thiab qeeb. Txhua hom yog tsim los ua haujlwm sib txawv. Ntawm lawv, R-4 hom kuab tshuaj sawv cev rau nws ntau yam. Nws yog ib qho khoom siv tsis tseem ceeb thaum ua haujlwm pleev xim, vim nws pab txhawm rau ua kom cov xim thiab cov kua roj vanish ntau ntxiv.
Lub hom phiaj thiab qhov sib xyaw ntawm cov khoom
P-4 hnyav yog npaj rau kev ua kom cov xim thiab cov kua roj vanish ua los ntawm cov copolymer ntawm vinyl chloride, polyvinyl chloride chlorinated thiab epoxy resins. Nws belongs rau txoj kev daws teeb meem, vim nws muaj ntau tshaj ob yam. Cov kuab tshuaj muaj xws li volatile organic tshuaj xws li butyl acetate - 12%, acetone - 26%, toluene - 62%.
Hauv kev tsim cov khoom no, niaj hnubtechnologies thiab khoom siv uas muab nws nrog high quality. Thinner P-4 vim nws cov khoom tseem ceeb ua kom cov txheej txheem sib xyaw. Nws siv ua rau nws ua tau nyob rau hauv ib lub sij hawm luv luv kom tau cov xim zoo nkauj, npaj txhij rau siv.
Solvent specifications
Outwardly, cov kuab tshuaj R-4 yog cov pob tshab, tsis muaj xim lossis xim daj nrog cov ntxhiab tsw tshwj xeeb. Nyob rau hauv nws, qhov loj feem ntawm dej yog 0.7%; acid naj npawb tsis tshaj 0.07 mg KOH / g; flash point - 7 ° C; coagulation naj npawb - 24%; auto-ignition kub - 550°C.
Universal hnyav P-4, cov yam ntxwv ntawm kev tso cai rau nws siv rau kev ua haujlwm nrog ntau cov kua roj vanish thiab enamels, yog qhov xav tau ntawm cov neeg siv khoom. Kev sib xyaw ua ke ntawm peb lub ntsiab lus suav nrog hauv cov khoom muaj txiaj ntsig cuam tshuam rau qhov ntom ntawm cov khoom pleev xim rau kev ua haujlwm viscosity.
Daim ntawv thov
Txhawm rau dilute cov kua roj vanish thiab cov xim siv hauv kev kho kom zoo nkauj sab hauv, nrog rau kev npaj cov chaw, P-4 hnyav yog siv. Cov xim thiab cov kua roj vanish yog siv rau saum npoo hauv ib txheej, yog li lawv yuav tsum tsis txhob muaj cov pob, uas delaminate thaum qhuav. Txhawm rau coj lawv mus rau qhov xav tau sib xws, cov kuab tshuaj ntxiv rau enamels, primers, putties hauv me me, thaum sib tov kom huv si. Kev ntxuav ntawm qhov chaw los ntawm cov roj stains thiab cov kab mob qub yog nqa tawm nrog ib daim ntaub ntub dej hauv cov tshuaj. Nws evaporates, lub resulting zaj duab xishardens thiab dhau los ua cov txheej tiv thaiv rau qhov chaw kho.
Los ntawm kev ntxiv R-4 hnyav rau cov khoom pleev xim, tus nqi yog 90 rubles ib 1 liter, koj txo lawv cov kev noj thiab ua rau muaj peev xwm ua rau thaj tsam loj dua. Cov nqi sib tov pom zoo los ntawm cov chaw tsim khoom yog qhia rau ntawm lub ntim ntawm cov tshuaj. R-4 hnyav, uas nws cov yam ntxwv muaj siab heev, yog haum rau diluting XB-124 grey thiab tiv thaiv enamels. Tsis tas li, cov khoom siv no tuaj yeem siv los dilute cov khoom sib xyaw:
- OS lem 51 03, 12 03;
- enamel "Evinal 28"; "Vinicolor"; EP 140, 439; "Vinikor 62"; XB 518, 125, 714, 1120; "Evicor";
- primers XC 04, 062, 059, 077; "Vinikor 061"; EP 0263, 0103, 0508, 0259;
- lacquer brands XC 76, XSL, XC 724, XB 784;
- ncig teb chaw EP 0020,XB 005.
ntsuas kev nyab xeeb
Solvent P-4 yog cov kua uas muaj zog ua kom khaus khaus ntawm daim tawv nqaij, mucous daim nyias nyias ntawm lub cev ntawm lub zeem muag thiab ua pa. Nws yog toxic, flammable thiab txawm tawg. Cov kuab tshuaj R-4 yog volatile heev thiab belongs rau 3rd chav kawm txaus ntshai. Thaum ua hauj lwm nrog nws, yuav tsum tau ceev faj.
Ua haujlwm siv cov khoom siv no yuav tsum tau nqa tawm hauv chav nrog cov khoom siv thiab tso pa tawm, kom deb ntawm qhov qhib hluav taws, ntawm qhov kub ntawm +5 … + 30ºС, thiab tseem nrog cov av noo ntawm 85%. Thaum thovhnyav yog txwv tsis pub haus luam yeeb. Cov khoom no yog tawg nyob rau hauv kev sib cuag nrog oxidizing agents xws li acetic thiab nitric acids, hydrogen peroxide, nrog rau chloroform thiab bromoform.
Cov khoom no yog tshuaj lom. Thaum evaporated, nws pollutes huab cua sai heev, uas yuav ua rau muaj kev puas tsuaj loj rau tib neeg noj qab haus huv. Lub tshuab ua pa yuav tsum tau siv los tiv thaiv kev ua pa. Nyob rau hauv rooj plaub ntawm kev sib cuag nrog tes los yog lwm qhov chaw, cov kuab tshuaj yuav tsum tau ntxuav tawm nrog dej.
Cia
P-4 Cov kuab tshuaj yog cov khoom siv hluav taws xob thiab tshuaj lom, yog li nws yuav tsum tau muab khaws cia rau hauv lub thawv kaw kom ruaj ntseg, kom deb ntawm lub tshuab cua sov, khoom noj khoom haus, khoom siv hluav taws xob, tawm ntawm qhov ncav cuag me nyuam, thiab tawm ntawm tshav ntuj ncaj qha. Nws yog nkag mus rau lub network faib khoom hauv cov ntim khoom ua los ntawm cov khoom siv tiv thaiv nws cov khoom. Chav tsev uas cov kuab tshuaj khaws cia yuav tsum tsis txhob muaj hluav taws kub. Txee lub neej txij li hnub tsim khoom yog 12 lub hlis.
