Vose vanogadzira mapuranga vakaona matambudziko anowedzera shrinkage isina kukodzera kana kupfugama kwehuni. Kana huni ikaoma zvisina kufanira, inogona kuputika, mukombe, uta, kuputika, kink kana kutarisa. Chinokosha pakuvaka maitiro emapurani ekugadzira mapuranga ndekuziva kana chimwe chezvinetso izvi chingakanganisa basa rako uye kugadzirira kusingadzivisiki.
Ramba uchiyeuka kuti ruzivo runotevera runobatanidza nehutanda huni hutanda, zvose zvakagadzirwa nematanda uye softwoods .
Plywood nemamwe miti yakagadzirwa nematanda haatombogoni kufanana nehutano hwakafanana.
Nei Ko Wood Inopera Kana Ichirerera?
Iyo ichiri kurarama sechikamu chemuti wemuti, huni inowanzo hutanda hutete twakatapira sese & mvura kubva kumidzi yemuti kusvika kumatavi makuru. Sezvatakakurukura munyaya yedu pamusoro peColwoodwood neSapwood , mishonga inowanikwa pedo nezvikamu zvekunze zvetambo inoshingaira uye inopfuuridza kupisa kupfuura iyo moyowood inowanikwa pedyo nepakati peti.
Mapurogiramu ako ehuni achaita zvakakodzera. Zvigadzirwa zvakavakwa kubva mumoyo wehuni zvichave zvisingakwanisi kuderera uye kuzviputika pane zvigadzirwa zvakaitwa kubva sapwood, sezvo mwoyowood isingagoni kuchengetedza unyoro.
Acclimatization of Wood
Zvakanaka, matanda haafaniri kunge akaomeswa zvakanaka vasati vavaka purojekiti, asi inofanira kunge yakagadziriswa kune zvakatipoteredza kune iyo ichashandiswa purogiramu zvachose.
Semuenzaniso, chirongwa chakavakwa mumamiriro ezvinhu ane humvu seFlorida angangoita zvakanyanya zvikuru kana ichifanira kushandiswa munzvimbo yakaoma serenje reArizona.
Pane kudaro, huni inofanira kutengwa uye kuchengetwa kwemavhiki mashomanana munzvimbo iyo purojekiti yekupedzisira ichashandiswa usati watanga purojekiti.
Nenzira iyi, huni huchava husingakwanisi kutama mushure mekunge purojekiti yapera.
Radial, Longitudinal uye Tangential Shrinkage
Zvose huni hutatu hutatu hutatu, uye kuziva kuti huni hunodonha uye hunovhuvhuta pamwe nematatu aya huchakubatsira kugadzirira matambudziko.
Longitudinal (pamwe chete nechemberi yakadzika yemuyoyo) shrinkage haina kunyanya. Mune zviitiko zvakawanda, kubva kune zvitsva-zvakasvibirirwa matanda kune huni-yakanyorowa, unogona kutarisira chete zvishoma zvishoma zvekufamba pamwe nechokureba kwebhodhi.
Kuti uone hunoti uye tangential tsanangudzo yeganda redu, unofanira kutarisa kuguma kwezviyo. Nzira inonzi radial isinganzwisisiki kumaketani okukura, apo tangential yakafanana nemhete.
Ramba uchifunga kuti kufamba pamwe chete ne-tangential axis inenge nguva dzose inenge iri huru kupfuura inotenderera mberi kwehutungamiri. Nekutarisa kunyoresa iyo mhete dzekukura dzinotungamirirwa mubhodhi, unogona kuwana pfungwa yekuti bhodhi ichaita sei kana kufamba kwechimiro ichi kupfuura chikwangwani cheredhiyo.
Zano: Kufambira mberi ndeimwe yezvikonzero zvakawanda nei zvikwata zvemota-soro zvakatsvakwa (uye zvinodhura). Nemhaka yehuni inotemwa yakagadzirwa kubva mugiyo, zvindori zvinokura zvishoma kusvika kumativi ebhodhi.
Sezvo zvakadaro, bhodhi ichanyura kana kutyora zvakanyanyisa kudarika bhodhi rose.
Mashoko Aya Anobatsira Sei?
Kuziva kuti bhodhi rinogona kupera kana kuvhara richakubatsira sei kuziva (kana kuti) bhokisi rinofanira kushandiswa pabasa rekuveza. Nemuenzaniso, kana iwe uri kutengesa tafura-kumusoro kubva kune zvakatevedzana zvebhendi-mapuranga, iwe unogona kunge uchinge uchingwa (iyo iri pakati pakusimuka kubva kumagumo, zvichiita kuti arc zvishoma muhupamhi bhodhi) sezvinoita huni huchikurira kana kuti huchienda.
Kana iwe uine mapepa akawanda eatang-e-cut-up angangonzwa kuvhara, kufambisa rimwe nerimwe bhiri kumucheto pasi (kuitira kuti mumwe ape mukombe zvichikwira apo inotevera ichakwira pasi), unogona kuderedza kusviba kwehuta hukuru mumutsetse wepamusoro .
Chimwe chiyeuchidzo chekucherechedza ndicho chikamu pakati pemakona ekukura.
Sangano nekumhanya zvakanyanya zvindori zvakanyanya kuderedza kufamba. Saka, bhodhi rakagadzirwa-tangentially rine maketani makuru ekukura rinogona kutarisira kufamba kusina kufanana, kazhinji kunokonzera kukanganisa (kunzi kutarisa) apo kukwira kunowedzera.
Paunenge uine bhodhi rakadaro iro rinoratidzika sekuti rinogona kuguma mukati-kati (kunyanya kana nzvimbo yepakati inotemwa kubva pith, kana nzvimbo, yeguru), unogona kunge uchida kuderedza zvikamu zviduku kubva pamiganhu yebhodhi iri uye kubvisa chikamu chikamu. Hapana chichakuvadza aesthetics yepurojekiti nekukurumidza kudarika kuputika mune chimwe chinhu chakakurumbira chehuni mubasa.
Kwokudzidza Kwakawanda
Pane basa rakagadziriswa, rakasarudzwa pamapuranga uye kuti huni inofamba sei kana ichinge ichinge ichiderera kana ichikurira. Dzidza zvakanyanya nokuverenga Kunzwisisa Wood: Bhuku reMhizha reWechnology raR. Bruce Hoadley. Bhuku iri rakawanda rekutarisa kupfuura "peji peji," asi ini handizivi imwe yemashoko anofukidza zvinhu zvehuni zviri nani. Hoadley inosanganisira chinyorwa chakakwana cheji chinyorwa chinoratidzira shrinkage yakawanda yemhando dzakawanda dzehuni yemiti sezvo yakasvibira kubva kune zvisikwa kusvika kuvhuni-yakaoma, pamwe nematatu ose. Iyi ibhuku rimwe chete randingarumbidza mumwe nomumwe wehuni ane zvinyorwa rimwe chete muchitoro chavo.