Chii akashandisa plywood bakelized?

Kare muna 1909 rakanyoreswa bvumidzwa munyika pakutanga zvaAtemisi mapurasitiki. Pakutanga, masayendisiti synthesized mumwe phenol-formaldehyde nebwe, uye chete pashure vakagamuchira polymer yokutanga yenyika. Chokutanga, mumwe pfuma itsva yave magnificently kutumidzwa mishonga "oksibenzilmetilenglikolangidrid", asi kushandisa pfungwa vakakunda, uye ipapo akaberekwa ari "Bakelite". Chaizvoizvo, musi uyu raiva zuva apo paiva plywood bakelized.

Zvisinei, vakawanda fuma mutsva akanga asina pakarepo: pakutanga raishandiswa chete nokuda pagadzirwe insulators. Asi pashure vaviri makore, yava pfungwa vamiririri kubva motokari uye midziyo Mazinga: Bakelite aiva nyore kufurirwa chaizvo uye isingadhuri zvinhu, rakanakira vakawanda kugadzirwa.

Akasikwa nokukurumidza plywood bakelized, riri anenge kuchinja iripo nhasi. Zvinonzi kwakavakirwa yepamusoro Birch ukanyatsotarisisa glued phenol formaldehyde varnish. Tichifunga kumanikidzwa uye tembiricha, izvo zvinokosha mamiriro ezvinhu pagadzirwe iyi, zvinokwanisika kuti vabudirire% dhigirii angasvika 100. impregnation. Phenols pachavo vari insoluble uye haagoni kukuvadza utano mutengi, asi zvinobatsira kudzivirira fungal kurwisa plywood. Nokuda kwaizvozvi, zvimwechetezvo ndiye anenge asingadi kuora.

Pasinei zvakanyanyisa nyore kugadzira, ichibereka plywood bakelized ine simba unhu kuti dzinoita kuti potse kukwikwidzana matsva zviitiko. Asi rinodhura dererei zvikuru, izvo zvinoita kuti vanhu vakawanda mashoko aya pakati vavaki.

Kana kuverenga nokungwarira, iwe pamwe haangavi kwauri nhau yokuti rinogona kushandiswa kunyange kupfuura kuoma runyararo. It haana chete mukuru nemishonga kuti mwando, asi kutamburawo pesvedzero yakaipa hasha namakemikari runyararo. Nokuda kwaizvozvi, kakawanda kunogona kuonekwa akadaro zvekumwe nzvimbo, inova uriri muchikepe. Zvechokwadi, mumamiriro ezvinhu akadaro, chaiwo mvura nemishonga plywood bakelized refu nguva kupikisa kunyange matambudziko reactive yomugungwa.

It inogonawo kushandiswa sezvo zvinhu nokuda reusable formwork, sezvo kunyange shoma Kudzingwa zvinogara uchiitarisira pasina zvinetso. Unganidza shuttering wakadaro nyore, uye masvingo aro kumeso kubvumira kuwana goho chivharo yakapotsa configuration akakwana. Kufunga zvaro pasi chafariz conductivity, ucharasikirwa ndoda kupisa, uchishandisa unyanzvi muchando kudziyisa kongiri kana kudira. Muchidimbu, mumwe nyore plywood bakelized kuponesa mari yakawanda panguva yakaderera mutengo kuti rikatenge.

The guru Ukuru mwero Pepa rino zvinhu anobvisa kudiwa zvishoma nhamba mapfundo. Kana zvakanaka uye nokungwarira kushandiswa, mumwe formwork zvikuru kumira vanenge makumi matatu mumakomba! Pari plywood bakelized muchiso FBS anobudiswa munyika yedu. Her kusunungurwa zvirimwa vaita Tyumen uye Nizhny Novgorod, anozivikanwa yakakwirira risanyatsobuda ayo.