PVA guruu: huru zvinhu uye mhando

Pari, PVA guruu ndiyo-chinja guruu maonero, zvikuru nevanhu munzvimbo dzakawanda. Rinoshandiswa sezvo schoolboys pane zvidzidzo basa navavaki nyanzvi kuti kugadzwa zvedongo usina kukonekita. Yakakwirira kukurumbira iri acho nokuda kwayo nyore uye zviri nyore, hapana chepfu choutsi oornag mutengo.

Traditional PVA guruu chinhu homogeneous, asi viscous zvacho chena ruvara, dzinoratidzwa anokudzwa simba (by gluing) uye yakanaka chando nemishonga.

Modern indasitiri unobereka mhando dzakawanda chigadzirwa ichi, izvo yakasiyana marongerwo uye nhengo yekirasi mutoro, maererano mvura nemishonga. Kusarudza namira anoenderana kushandiswa uye yakananga zvechadenga zvinhu izvo achanamatira pamwe chete. Kubva izvi zvinoenderana zvichabuda.

PVA guruu yezvisikwa ane unhu hwakadai namira simba yakaenzana 400-450 N / m, pasi mafuta rakawanda, zvinobva zana mapfumbamwe magiramu por mativi mita (zvichienderana mhando basa), mukuru nemishonga kuti chando, zvinogara anopfuura mana chikamu .

Uyezve, zvinokosha kuziva yakakwana nokuomesa nguva rinowanzova maora anopfuura makumi maviri nezvina, uye zvakarurama refu pasherefu upenyu - mitanhatu kusvikira mwedzi minomwe.

To musi, PVA guruu anowana kushanda kwayo muminda basa siyana. Kushandiswa Kwaro uye kuturika zvedongo usina kukonekita, uye unhani wallpapered masvingo, uye kunyange somunhu tichisunga chirungiso mugirazi indasitiri.

Kwevafundisi guruu, muduku chepfu yose dzimwe mhando akashandiswa Muitiro unobatanidza mapepa, makadhibhokisi uye mifananidzo. Joiner, ine yakakwirira mvura nemishonga uye adhesion zvakanaka, rinoshandiswa siyana fenicha. Guruu "Moment", dzinoratidzwa shoma kudzvanya nguva rinoshandiswa kana kuisa parquet uye laminate. Uyezve, pane chinokosha PVA guruu huni nematehwe zvigadzirwa. chigadzirwa Izvi rinofanirawo pakuderedza kuti primers uye fillers.

Pane namira akanyorerwa kuti cladding pamwe zvedongo usina kukonekita uye basa pamwe pamakapeti, homopolymer PVA guruu zvaishandiswa pakugadzira zvokuvakisa, uyewo Whitehead Textile uye porcelain indasitiri. Last inopa kunonyanyisa simba marongero.

Environmental ushamwari, kuchengeteka, uye mutengo kuti chero mhando izvi zvokunyama yaibatsira chaizvo kutora. Izvi, Sezvineiwo, anotsanangura chimwe zvikonzero zviri kumusoro kukurumbira. On hwaro ichi kunyange kubereka "akangwara plasticine" - rinokosha toyi vana kuti vanogona kuchinja mamiriro uye kuti zvachose chero chimiro.

The pachena paanopfuura dzimwe yeimwe ichi mhando chinhu chikuru pane zviri nhasi mukugadzira makambani kutsvaka kuvandudza Pfungwa pamusoro PVA guruu, pane wekuvamba adhesives itsva.