Mastic BPM-3 thiab BPM-4. Compound khoom

Cov khoom thiab cov yam ntxwv zoo ntawm cov roj hmab-bitumen mastics

Mastic, npaj rau lub hauv paus ntawm roj hmab thiab bitumen, yog ib txheej txheej, uas yog insurmountable barrier rau ya raws. Nws tsim cov txheej txheem txuas ntxiv uas, txawm tias qhov hloov pauv ntawm qhov kub thiab txias sab nraud, kev tswj hwm thermal ruaj khov, uas ua rau qeeb cov txheej txheem ntawm corrosion thiab lwj ntawm cov ntaub ntawv hlau.

Roj Hmab-bitumen mastics yog cov pab pawg hu ua "txias" mastics, uas yog siv rau lub kaw qhov chaw ntawm lub tsheb tom qab preheating, tab sis nyob rau hauv lub chav tsev kub (tsuas yog cua sov tsuas yog npaj kom me ntsis txo cov viscosity ntawm cov muaj pes tsawg leeg, kom yooj yim. ntawm kev ua haujlwm nrog nws). Tsis tas li ntawd, txhua yam ntawm cov khoom siv ua haujlwm nruj me ntsis. Roj hmab tsub kom lub elasticity ntawm mastic thiab nws tsis kam mus khoov thaum lub sij hawm ntse tshuab los yog shocks, thiab bitumen pab txhawb rau lub hydrophobicity ntawm mastic thiab nws tsis kam mus rau chemically aggressive ib puag ncig (acids thiab alkalis).

Txij li thaum muaj hnub nyoog bituminous nyob rau lub sij hawm thiab poob nws elasticity, polymeric tebchaw yog ntxiv rau mastic, uas ua rau kom lub softening point. Qhov no yog qhov tsim nyog txhawm rau siv cov roj hmab-bitumen mastics ntawm BPM series txhua xyoo puag ncig.

Cov yam ntxwv ntawm kev ua haujlwm ntawm cov khoom sib xyaw raws li xav tau:

Mastic hom	Softening kub, ° C	Elongation plasticity, mm	Cov txheeb ze elongation thaum pib tawg, %	Kev ntsuas kub, ° C
PEB-3	50	3… 5	60	10… 30
PEB-4	60	4… 8	100	5… 30

Mastic BPM-3

Thaum siv rau cov hlau nto ntawm lub tsheb, qhov sib xyaw ua haujlwm ua haujlwm hauv qab no:

• Tiv thaiv steel los ntawm corrosion.
• Txo cov suab nrov hauv chav tsev.
• Ua txhua yam kev tiv thaiv hauv qab los ntawm ntau yam ntsev, crushed pob zeb, gravel.
• Pab dampen vibrations.

Lub xub ntiag ntawm cov roj hmab zoo nyob rau hauv muaj pes tsawg leeg ua kom txaus elasticity ntawm lub txheej, uas yog khaws cia txawm nyob rau hauv qis kub (txog -15 ... -20).⁰C).

Aluminosilicate compositions yog nkag mus rau hauv cov muaj pes tsawg leeg ntawm BPM-3 mastic, lub xub ntiag ntawm uas tiv thaiv lub sab nraud lub cev qhov chaw ntawm dynamic loads. Nyob rau tib lub sijhawm, mechanical hnav tsis kam yog txhim kho. Cov khoom siv bituminous pab txhawb rau qhov tsim nyog txuas ntxiv ntawm txheej txheej thiab txo qis ntawm thaj chaw dawb.

Mastic yog flammable, yog li nws pom zoo kom ua hauj lwm nrog nws nyob rau hauv zoo-ventilated qhov chaw, deb ntawm qhov chaw ntawm qhib nplaim taws. Ua ntej thov cov mastic yog rhuab nyob rau hauv ib da dej da dej los yog nyob rau hauv ib tug sov so chav tsev. Cov muaj pes tsawg leeg yog npaj rau kev siv thaum nws yog homogeneous, viscous, nplaum dub loj.

Mastic BPM-4

BPM-4 yog ib qho kev txhim kho mis ntawm BPM-3 mastic. Hauv particular, muaj cov khoom uas ua rau kom cov modulus ntawm elasticity ntawm cov khoom, uas muaj ib tug zoo ntxim rau lub durability ntawm lub txheej.

Tsis tas li ntawd, BPM-4 roj hmab-bitumen mastic yog tus cwj pwm los ntawm:

• Lub xub ntiag ntawm amine-muaj roj av roj, uas muab ib tug ntxiv anti-corrosion nyhuv uas kav ntev lub sij hawm.
• Ua kom elasticity ntawm qhov chaw kho, uas yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov tsheb ua haujlwm ntawm txoj kev tsis zoo.
• Ua kom ib puag ncig tus phooj ywg zoo thaum siv, vim nws tsis muaj cov khoom ua rau lub cev ua pa.

Lwm qhov kev ua haujlwm tsis zoo sib xws rau lub peev xwm ntawm BPM-3 mastic.

Kev tsim cov roj hmab-bitumen mastics BPM-3 thiab BPM-4 yog ua raws li cov kev cai ntawm GOST 30693-2000.

Kev txheeb xyuas neeg siv

Kev tshuaj xyuas feem ntau qhia txog cov yam ntxwv hauv qab no ntawm kev siv cov hom mastics:

1. Qhov kev ntshaw ntawm kev siv cov thinners, txij li thaum pib lub xeev (txawm tias tom qab thermal softening) nws yog ib qho nyuaj rau siv mastics, tshwj xeeb tshaj yog nyob rau ntawm qhov chaw nrog ib tug complex configuration. Gasoline Kalosh, kerosene, toluene yog pom zoo raws li diluting tebchaw. Txawm li cas los xij, tag nrho cov nyiaj ntawm cov thinner yuav tsum tsis pub tshaj 15% ntawm qhov ntim ntawm mastic thawj.
2. Qee qhov kev tshuaj xyuas nco ntsoov qhov tseeb ntawm lub cev kev laus ntawm cov txheej txheem kho nrog BPM-3, uas cov tswv tsheb tau tawm tsam los ntawm kev qhia cov yas yas rau hauv mastic. Hauv lub peev xwm no, koj tuaj yeem siv cov roj cav lim.
3. Piv rau BPM-3, BPM-4 mastic tuaj yeem siv rau hauv ib txheej, tab sis ua ntej nws raug pom zoo kom huv si thiab degrease qhov chaw, nrog rau siv cov phosphate-muaj primer.
4. Tsis zoo li qee cov khoom zoo sib xws - piv txwv li, Kordon anticorrosive - Nizhny Novgorod mastics tsis tawg ntawm qhov kub thiab txias.

Cov neeg siv kuj xav txog "kev phooj ywg" ntawm ob qho tib si los ua ib qho zoo, uas tso cai rau siv lwm hom khoom zoo sib xws.

Mastic, armored tiv thaiv corrosion ntawm hauv qab