Mastic BPM-3 ndi BPM-4. Compound katundu

Katundu ndi zabwino za mphira-phula mastics

Mastic, yokonzedwa pamaziko a mphira ndi phula, ndi chophimba chimodzi, chomwe ndi chotchinga chosagonjetsedwa ndi chinyezi. Zimapanga kusanjikiza kosalekeza komwe, ngakhale kusinthasintha kwa kutentha kwakunja, boma lokhazikika lamafuta limasungidwa, lomwe limachepetsa kwambiri njira za dzimbiri ndi kuwonongeka kwa zinthu zachitsulo.

Mastics a mphira-phula ndi gulu la mastics otchedwa "ozizira", omwe amagwiritsidwa ntchito kumalo osindikizidwa a galimoto atatha kutentha, koma kutentha kwapakati (kutentha kumangotanthauza kuchepetsa kukhuthala kwa kapangidwe kake, mosavuta. kugwira nawo ntchito). Komanso, aliyense wa zigawo zikuluzikulu amachita mosamalitsa kumatanthauza ntchito. Mphira umawonjezera kutha kwa mastic komanso kukana kupindika pakawombedwa kapena kugwedezeka, ndipo phula limathandizira kuti hydrophobicity ya mastic ikhale yolimba komanso kukana kwake kumadera ankhanza (ma acid ndi alkalis).

Popeza misinkhu iliyonse ya bituminous imakalamba pakapita nthawi ndipo imataya mphamvu zake, mankhwala a polymeric omwe amawonjezera kufewa ayenera kuwonjezeredwa ku mastic. Izi ndizofunikira kuti mugwiritse ntchito mastics a BPM-labala-phula chaka chonse.

Makhalidwe ogwirira ntchito a nyimbo zomwe zikuganiziridwa:

Mtundu wa mastic	Kutentha kofewa, ° С	Elongation pulasitiki, mm	Kutalikirana kofananirako kumayambiriro kwa kusweka,%	Kutentha kwa ntchito, ° С
BPM-3	50	3 ... 5	60	10 ... 30
BPM-4	60	4 ... 8	100	5 ... 30

Mastic BPM-3

Mukagwiritsidwa ntchito pazitsulo zamoto, zojambulazo zimagwira ntchito zotsatirazi:

• Kuteteza zitsulo ku dzimbiri.
• Amachepetsa phokoso mu kanyumba.
• Amapanga chitetezo chamakina pansi kuchokera ku mchere wosiyanasiyana, mwala wosweka, miyala.
• Imathandiza kuchepetsa kugwedezeka.

Kukhalapo kwa mphira womwazika bwino pakuphatikizidwa kumatsimikizira kukhazikika kokwanira kwa zokutira, zomwe zimasungidwa ngakhale kutentha kochepa (mpaka -15 ... -20)⁰C).

Nyimbo za aluminosilicate zimayambitsidwa mu BPM-3 mastic, kupezeka kwake komwe kumateteza ziwalo zakunja za thupi ku katundu wamphamvu. Panthawi imodzimodziyo, kukana kuvala kwa makina kumawonjezeka. Chigawo cha bituminous chimathandizira kupitiliza koyenera kwa zokutira ndikuchepetsa malo aulere.

Mastic amatha kuyaka, choncho tikulimbikitsidwa kuti tigwire nawo ntchito m'malo olowera mpweya wabwino, kutali ndi magwero a moto wotseguka. Musanagwiritse ntchito mastic imatenthedwa m'madzi osamba kapena m'chipinda chofunda. The zikuchokera ndi okonzeka ntchito pamene ndi homogeneous viscous yomata misa wakuda mtundu.

Mastic BPM-4

BPM-4 ndi njira yabwino ya BPM-3 mastic. Makamaka, pali zigawo zomwe zimawonjezera modulus ya elasticity ya zinthu, zomwe zimakhala ndi zotsatira zabwino pa kulimba kwa zokutira.

Kuphatikiza apo, BPM-4 rabara-phula mastic imadziwika ndi:

• Kukhalapo kwa mafuta a petroleum omwe ali ndi amine, omwe amapereka zowonjezera zotsutsana ndi dzimbiri zomwe zimakhala kwa nthawi yaitali.
• Kuwonjezeka kwa elasticity ya malo ochiritsidwa, omwe ndi ofunika kwambiri kwa magalimoto oyendetsa misewu yoipa.
• Kuchuluka kwa chilengedwe mwaubwenzi panthawi yogwiritsira ntchito, popeza ilibe zigawo zomwe zimakwiyitsa dongosolo la kupuma.

Zotsalira zogwirira ntchito zimagwirizana ndi kuthekera kwa mastic BPM-3.

Kupanga mphira-phula mastics kalasi BPM-3 ndi BPM-4 ikuchitika malinga ndi luso luso GOST 30693-2000.

Zotsatira za Mwamunthu

Ndemanga zambiri zikuwonetsa zotsatirazi zakugwiritsa ntchito mitundu iyi ya mastics:

1. Kufunika kogwiritsa ntchito zoonda, popeza poyambira (ngakhale kufewetsa kwamafuta) kumakhala kovuta kugwiritsa ntchito mastics, makamaka pamalo omwe ali ndi kasinthidwe kovutirapo. Mafuta Kalosh, palafini, toluene akulimbikitsidwa monga diluting mankhwala. Komabe, kuchuluka konsekonse kocheperako sikuyenera kupitilira 15% ya voliyumu yoyambirira ya mastic.
2. Ndemanga zina zimazindikira kukalamba kwakuthupi komwe kumapangidwa ndi BPM-3, yomwe eni magalimoto akulimbana nayo poyambitsa mapulasitiki mu mastic. Mwa izi, mutha kugwiritsa ntchito mafuta a injini osasankhidwa.
3. Poyerekeza ndi BPM-3, BPM-4 mastic ingagwiritsidwe ntchito pagawo limodzi, koma izi zisanachitike zimalimbikitsidwa kuti ziyeretsedwe bwino ndikupukuta pamwamba, komanso kugwiritsa ntchito pulasitala yokhala ndi phosphate.
4. Mosiyana ndi zinthu zina zofananira - mwachitsanzo, Kordon anticorrosive - Nizhny Novgorod mastics samasokoneza kutentha kozungulira.

Ogwiritsanso amawona "ubwenzi" wa nyimbo zonse ziwiri kukhala chinthu chabwino, chomwe chimalola kugwiritsa ntchito mitundu ina yazinthu zofanana.

Mastic, odana ndi dzimbiri mankhwala pansi