Zvinhu Zvinokanganisa Adhesive Bonding Simba

Zvinhu Zvinokanganisa Adhesive Bonding Simba

1. pamusoro roughening

Kana zvinonamira zvakazara pamusoro pechinhu, kukwirisa kwepamusoro kunobatsira kuvandudza kupararira kwezvinonamira uye kunowedzera density yenzvimbo dzakabatana pakati pekunamatira uye zvinhu, izvi zvinosimudzira kusimba kwekubatanidza. Pane zvinopesana, kana chinonamira chikatadza kuparadzira zvinhu zvakanaka, kukwirisa kwepamusoro kunoderedza simba rekubatanidza.

2. Kurapa kwepamusoro

Kugadzirira kwepamusoro pamberi pekubatana ndiyo kiyi yekubudirira kwekubatana. Inotarisira kuwana majoini akasimba uye akasimba. Nekuda kwehuvepo hwema boundary layers asina kusimba akaumbwa neooxide layers senge ngura, chrome plating layers, phosphating layers, release agents, etc. pamabonding materials, mabatirwo epamusoro peadherent zvinozokanganisa simba rekubatanidza. Semuenzaniso, nzvimbo dze polyethylene dzinogona kurapwa nekupisa chromic acid oxidation kuvandudza kusimba kwekubatana.

3. Pinda

Mushure mekubatana, mubatanidzwa unowanzo kukanganiswa nemhoteredzo, mamorekuru madiki semvura kana zvinonyungudutsa zvinogona kupinda mukati meglue layer. Semuyenzaniso, mukunyorova kana pasi pemvura, mamorekuru emvura anopinda muglue; mune organic solvents, solvent mamorekuru anoita zvimwechete. Aya mamorekuru anotanga aita kuti glue layer ichinje chimiro chayo, obva asvika pakuonana pakati peglue nepamusoro. Izvi zvinonetesa chisungo, zvichizokonzera kutadza. Kupinda hakungotangi kubva kumicheto yeglue layer. Kana zvinhu zvirikusungwa zviine porous, mamorekuru madiki anogonawo kupinda nepamagap, pores, kana pakatsemuka, anobva asvika painterface odzikisa simba rekubatanidza. Kupinda uku hakungodzikisi simba remuviri wejoinhi asi kunogonawo kukonzera shanduko yemakemikari pachiratidziro, senge ngura, izvo zvinoita kuti chisungo chive chisingabatsiri zvachose.

4. Movement

Bonded zvinhu zvine plasticizers, akadai PVC. Sezvo mamorekuru aya madiki asingasanganisike nemamorekuru epolymer, anobuda zviri nyore kubva kunze kwechinhu kana kuti bonding interface. Kana mamorekuru madiki akatamiswa achigara pamwe chete panzvimbo, anomisa kunamira kune izvo, zvichiita kuti bondi isashande.

5. Pressure

Paunenge uchinamatira, dzvanya kumanikidza kunzvimbo. Izvi zvinobatsira guruu kuzadza maburi madiki pachinhu zviri nyore, kunyangwe maburi akadzika uye machubhu madiki, uye kuderedza zvinonamirwa zvakashata. Pamanamati asina kusimba, kudzvanya kuchaita kuti anyanye kuwanda uye kusasiya guruu yakakwana. Saka mirira kusvika glue rawedzera simba mukusunga usati wadzvanya. Izvi zvakare zvinosundira mweya kunze kwepamusoro pechinhu uye zvinoderedza mabhuru emhepo munzvimbo inonamira. Kune akakora kana akasimba glues, kudzvanya kunodiwa kana uchinamira. Muzviitiko izvi, iwe kazhinji unofanirwa kudzipisa nemazvo kuti dziite dzakatetepa kana kushandura mvura. Semuenzaniso, kugadzira insulating pressing layer kunoitwa pasi pekupisa nekumanikidzwa. Kuti uwane chisungo chakasimba, shandisa kudzvinyirirwa kwakasiyana kune glues akasiyana. Uye kazhinji, shandisa kudzvanywa kwepamusoro kune akasimba kana akakora glues, uye yakaderera kudzvanywa kweglue dzakatetepa.

6. Ukobvu hweglue layer

Mafuro akakora anowana nyore mabhuru emhepo, zvikanganiso uye kuputika kwekutanga, saka iwe unofanirwa kuita kuti glue layer iite mutete sezvinobvira kuti uwane chisungo chakasimba. Zvakare, kana matinji akakora akapisa, kuwedzera kwawo kunokonzeresa kushushikana kwekupisa munzvimbo yejoinhi, izvo zvinoita kuti kubatana kutsemuka kuve nyore. Izvo zvinoshungurudza pamajoini chaiwo zvakaoma, kusanganisira shear stress, peel stress uye kudzokororwa kushushikana. Chekutanga, shear stress: kana off-center pulling force is used, stress inovaka pamigumo yechisungo. Kunze kwesimba rekugera, pane zvakare simba rekudhonza pamwe nejoinhi uye kubvarura simba pajoini. Kana mubatanidzwa uri pasi pekugera, kukora kwechinhu chiri kunama, kusimba kwakabatana. Chechipiri, peel stress: izvi zvinoitika kana chinhu chiri kunama chakapfava. Masimba ese ari maviri ekudhonza nekugera anobata pajoinhi, uye simba rese rinotarisa pane glue - zvinhu zvemukati, saka mubatanidzwa unotsemuka zviri nyore. Nekuti peel stress inokuvadza zvakanyanya, iwe unofanirwa kudzivirira majoini madhizaini anoigadzira kana uchigadzira. Chechitatu, kudzokororwa kushushikana: iyo glue iri mujoinhi inopera zvishoma nezvishoma kubva pakudzokororwa kunetseka uye inoputsika pamatanho akaderera pane zvakajairwa static kusagadzikana. Yakaomarara uye yakatambanudzwa glues, senge mamwe erubbery, bata anodzokororwa kushushikana zvakanaka.

7. Kushushikana kwemukati
   Chekutanga, shrinkage stress: Kana glue richirapa, rinoderera muhuwandu nekuda kwekubuda, kutonhora uye kuita kwemakemikari, izvo zvinokonzeresa shrinkage kusagadzikana. Kana simba rekudzikisa rinenge rakasimba kudarika simba rekunamatira, iro rinoratidzika sesimba rechisungo rinodonha zvakanyanya. Zvakare, kusaenzana kwekunetsekana kugovera kwakatenderedza mabhondi echeto kana mapundu ari muglue anokonzera kushushikana mupfungwa, izvo zvinowedzera mukana wekutsemuka kuumba. Crystalline glues anodzikira zvakanyanya kana achirapa nekuda kwecrystallization, izvo zvinogadzirawo kushushikana kwemukati mumubatanidzwa. Kana iwe ukawedzera huwandu hwezvinhu zverubha zvinogona kupenya kana kushandura saizi yekristaro, unogona kuderedza kushushikana kwemukati. Kuwedzera tougheners kune thermosetting resin glues ndiyo yakanakisa muenzaniso. Semuenzaniso, kune phenolic-acetal glues, kana iyo acetal yemukati iri pasi pe40%, iyo yekubatanidza inongotadza interface; kana iri pamusoro pe40%, ine kukundikana kwakabatana, uye simba rezvisungo rinowedzera zvakanyanya. Chechipiri, kushushikana kwekushisa: Kana resin yakanyunguduka ichitonhora uye ichipora kubva kune tembiricha yakanyanya, inodzikira muhukuru. Chisungo chinochibata panzvimbo, izvo zvinogadzira kushushikana kwemukati pane interface. Kana cheni dzemamorekuru dzichigona kutsvedza dzichipfuura neimwe, kushushikana kwemukati kunopera. Zvinhu zvikuru zvinokanganisa kushushikana kwekushisa ndiko kuwedzera kwemafuta ekuwedzera, tembiricha yekamuri, kusiyana kwekushisa uye mutsauko mukuoma. Kuti uderedze kushushikana kwemafuta kunokonzerwa neakasiyana ekuwedzera kwemafuta coefficients, iwe unofanirwa kuita glue's thermal yekuwedzera coefficient pedyo neiyo yezvinhu zviri kunama. Kuwedzera mafirita inzira yakanaka - unogona kuwedzera hupfu hwechinhu chimwe chete, kana fiber nehupfu hwezvimwe zvinhu.