PVA glue: zinthu zofunika komanso mitundu

Pakalipano, PVA glue ndi mtundu wotchuka kwambiri wa guluu omwe amagwiritsidwa ntchito kwambiri m'madera ambiri. Zimagwiritsidwa ntchito limodzi ndi ana a sukulu mu maphunziro a zowawa, ndi ogwira ntchito zomangamanga kuti aike mataya a ceramic. Kutchuka kwa nkhaniyi kumafotokozedwa ndi kuphweka ndi kosavuta kwa ntchito yake, kupezeka kwa mankhwala osokoneza bongo komanso mtengo wogula.

Gulu lachilendo la PVA ndilopangidwa mofanana, m'malo mooneka ngati maonekedwe oyera, omwe amadziwika ndi mphamvu yambiri (panthawi yomwe imagwiritsidwa ntchito) komanso chabwino cha chisanu.

Zamakono zamakono zimapanga mitundu ingapo ya mankhwalawa, omwe amasiyana molemba ndi m'kalasi ya katundu, malinga ndi muyezo wa kukana madzi. Kusankhidwa kwa izi kapena zomangiriza kumadalira mwachindunji ndi munda wogwiritsira ntchito komanso zida zomwe zimagwiritsidwa ntchito pamodzi. Zotsatira zomaliza zimadalira izi.

Chipangizo cha PVA chonse chimakhala ndi zida zogwiritsira ntchito zomangamanga zofanana ndi 400-450 N / m, kutsika kwa mlingo wa mamita 100 kufika mazana asanu ndi anayi pamtunda umodzi (malinga ndi mtundu wa ntchito), kutentha kwachisanu ndi mowirikiza .

Kuwonjezera pamenepo, tiyenera kuzindikira nthawi yowuma, nthawi zambiri osapitirira maora makumi awiri mphambu anayi, komanso moyo wautali wa miyezi isanu ndi umodzi kapena isanu ndi iwiri.

Masiku ano, PVA glue imapeza ntchito yake pamagulu osiyanasiyana. Amagwiritsidwanso ntchito popanga matabwa a ceramic, komanso pamene akuphimba makoma ndi mapepala, komanso ngati chowonjezera chogwiritsidwa ntchito mu galasi.

Mankhwala otsekemera, omwe ali ndi poizoni wa mitundu yonse, amagwiritsidwa ntchito popanga pepala, makatoni kapena zithunzi. Kugwirira ntchito, komwe kumakhala kuthamanga kwa madzi okwanira komanso kumangiriza bwino, kumagwiritsidwa ntchito pogwira ntchito ndi zipangizo zosiyanasiyana. Glue "Moment", yomwe imadziwika ndi nthawi yosachepera, imagwiritsidwa ntchito poika mipando ndi mapepala. Kuphatikizanso apo, pali Plue gulu lapadera la nkhuni ndi zopangira zikopa. Chogwiritsidwa ntchito choterechi ndichinthu choyenera kuti chikhale choyambirira ndi fillers.

Palinso guluu, lomwe limapangidwira matabwa a ceramic ndi pulasitiki, phula la PVA la homopolymer lomwe limagwiritsidwa ntchito popanga zipangizo zomangamanga, komanso m'makampani ogulitsa nsalu ndi mapepala. Wotsirizirayo amasiyana ndi mphamvu yogwira.

Kuyeretsa kwa chilengedwe, chitetezo ndi mtengo wotsika mtengo amachititsa mtundu uliwonse wa zinthuzo kukhala chinthu chofunika kwambiri. Mwa njira, izi zikufotokozera chimodzi mwa zifukwa za kutchuka kwake. Pachifukwa chake, ngakhale kutulutsa "pulasitiki yamakono" - chidole cha ana chapadera chomwe chingasinthe chikhalidwe chake ndi kutenga mtundu uliwonse.

Kupindula kwakukulu kuposa njira zina zofananamo ndizofunika kwambiri lero kuti opanga amayesetsa kusintha mapangidwe a PVA glue, osati kupanga mapuloteni atsopano.