Izinto eziphambili zokuKhetha i-Adhesive

Imiba ephambili yokuKhetha okuncamathelayo ----Imigaqo yoBuchule kunye neNdlela yokuKhetha okuSebenzayo


Umsebenzi osisiseko wezinto zokuncamathelisa kukwaleka umphezulu wezinto ezincamathelayo kwaye uzibophelele kunye. Xa ukuvelisa iindibano ezidibeneyo, into yokuqala ephambili kukukhetha i-adhesive efanelekileyo kwiintlobo ezahlukeneyo ezikhoyo. Ngezantsi kukho izinto ezininzi eziphambili ezichaphazela ukhetho lwe-adhesive.

1. I. IiNdibano eziBond

Ukusetyenzwa komsebenzi wonke wokuvelisa iindibano ezidityanisiweyo zisebenzisa amanqanaba ahlukeneyo empembelelo ekukhetheni okuncamathelayo. Ukusetyenzwa kwangaphambili kwe-bonding kudala iimeko ezithile zomphezulu kwimigangatho yokubambelela, emisela ngokuthe ngqo ukusebenza kokugqibela kokudibanisa. Ukuba iimeko ezinjalo zomhlaba azikwazi ukuguqulwa, i-adhesive ehambelanayo kunye nomgangatho okhoyo kufuneka ikhethwe. I-Post-bonding machining systems yecandelo elidityanisiweyo eligqityiweyo nalo kufuneka lithathelwe ingqalelo ngexesha lokukhetha ukuncamathelisa. Ukuba indibano edibeneyo isebenza njengeyunithi enye ukuba idibaniswe namanye amacandelo, iimpawu zokusingatha i-adhesive ekhethiweyo kufuneka zihambelane nesigqi sokuvelisa kwezinye iinkqubo zokusebenza. Ukongezelela, ifom ye-adhesive ye-adhesive (ulwelo, i-paste, ifilimu okanye i-solid) iya kuhambelana neendlela zokuvelisa ezisetyenziswe kwindibano edibeneyo.

1. II. Iipropathi zokuBambelela iMathiriyeli

Iimpawu ezibonakalayo kunye neekhemikhali zezinto zokubambelela, kunye nomgangatho ofunekayo wokulungiswa komhlaba ngaphambi kokudibanisa, zenza enye into ebalulekileyo ekukhethweni kwe-adhesive.Ithagethi yokukhethwa kweli nqanaba kukwandisa amandla okudibanisa kwi-interface edibeneyo, ukwenzela ukuba i-joint ihluleke ngokubambisana ngexesha lokuvavanya kunokubandezeleka kokungaphumeleli kwe-interfacial phakathi kwe-adhesive kunye nokubambelela. Ngaloo ndlela kuphela amandla aphezulu okunamathela anokufezekiswa ngokupheleleyo.

1. III. Amandla okubambelela kwiZixhobo

I-Low-amandla e-substrates inokuba buthathaka kune-adhesive ngokwayo, okubangela ukungaphumeleli kokubambisana okwenzeka ngaphakathi kwe-adherend endaweni ye-adhesive layer.

Kwizicelo ezinjalo, i-adhesive ekhethiweyo iya kuvumela indibano edibeneyo ukuba imelane nazo zonke iimeko zenkonzo yenyama enokuthi isiseko sinyamezele, ngaphandle komngcipheko wokungaphumeleli kokubambisana. Kule meko, ukwamkela izinto ezincamathelayo eziphezulu-amandla kuya kukhokelela kwi--kucaciswa kwezinto ezincamathelayo kunye neendleko ezongezelelweyo ezingeyomfuneko.

1. IV. Ukutyeba kweZixhobo zokubambelela

Enye into engenakuhoywa yindlela ebonakalayo ye-adhesive. I-Solvent-izinto zokuncamathelisa ezisekelwe zidla ngokubangela ukushwabana kwincam edityanisiweyo xa kuhlanganiswa iifilimu ze-thermoplastic okanye iilaminates ezidibeneyo; nangona kunjalo, xa ifakwe kwi-thermoplastics eqinile, zihlala zithoba iimfuno zonyango lwangaphambili lwe-substrate. I-geometry ekhethekileyo ye-adherends isoloko iququzelela ukusetyenziswa kweentlobo ezithile zokunamathela. Ukudibanisa emphethweni phakathi kwezakhiwo ze-aluminiyam ye-honeycomb kunye namaphepha esinyithi esicaba, i-primer yolwelo edityaniswe neefilimu ezincamathelayo ze-thermosetting eziqiniswe ngelaphu le-fiberglass lizisa ukusebenza kakuhle kwebhondi. Iincamathelisi zokuncamathelisa zilungele ukwenza abatshintshi bobushushu ngokudibanisa amaphiko obhedu kunye neetyhubhu zealuminiyam. Kwiisubstrates ezinabileyo, high-viscosity okanye uncamathisele-izinto zokuncamathelisa ezilungele ngakumbi

1. V. Ukuhambelana phakathi kwe-Adherends kunye ne-Adhesives

Ukungahambelani phakathi kwe-adherend kunye ne-adhesive kuya kubangela ukungaphumeleli kokubambisana kwendibano edibeneyo. Oku kuyinyani nokuba icandelo elinye lokuncamathelisa lingahambelani ne-adherend. Imizekelo yile ilandelayo: iinxalenye zentsimbi zigqwala ngokuncamathelisa okuneasidi okanye kwealkaline; iiplasticizers ezifudukayo ziphuma kwiiplastiki eziguquguqukayo ziye kwi-adhesive kwaye zibangele ukusilela kokudibanisa ubuso; i-solvents okanye izinto eziguquguqukayo eziqulethwe kwi-adhesive ehlasela iifilimu zeplastiki. Ke ngoko, xa kunokwenzeka, iinkcukacha zepropathi ezineenkcukacha ziya kunikezelwa kunye neesampulu ezincamathelayo. Oku ngokuqinisekileyo kuya kuba yingenelo kubo bobabini abavelisi abancamathelayo kunye neengcali eziqhuba iinkqubo zokudibanisa.

1. VI. IiMfuneko Zokugcinwa KweeNdibano eziBond

Ngelixa iimeko zenkonzo yeendibano ezidityanisiweyo zidla ngokutsala ingqalelo eyaneleyo, iimeko zokugcinwa kwazo zihlala zingahoywa. Isenzo esifanelekileyo kukuqwalasela amaqondo okushisa angaqhelekanga kunye nemithwalo yempembelelo enokuthi iindibano ezidibeneyo zihlangane ngexesha lokuthutha kunye nokugcinwa kwinqanaba lokukhetha ukunamathela.

1. VII. Iindleko

Xa uvavanya yonke inkqubo yokudibanisa iyonke, ukufaneleka kweempawu zokuncamathelisa zithwala ubunzima obukhulu kuneendleko zayo zezinto ezikrwada. Ngaphandle kwexabiso leyunithi ye-adhesive ngokwayo, ukusebenza kakuhle kwemveliso kunye nezinye izinto ezinxulumene nazo kufuneka zifakwe kwinkqubo yokhetho. Ukukhetha kuphela elona ncamathele lisezantsi ngaphandle kokuthathela ingqalelo imilinganiselo efanelekileyo edweliswe ngezantsi ayizukubonelela ngeenzuzo ezifanelekileyo kwezoqoqosho:

Ukusebenza kakuhle kokudibanisa ngokubanzi

Ukulula kokufumana izixhobo ezifunekayo kwisicelo kunye nokusetyenzwa

Ixesha lokujikeleza elichithwa yinkqubo yokudibanisa

Iindleko zabasebenzi zokubambelela kunye nokuhlolwa

Umthamo wokwenziwa kwenkunkuma xa kuthelekiswa nobunye ubuchwephesha bokudibanisa

Ngokubanzi, ukukhawuleza-izinto ezincamathelayo ezenza ukuba kube lula ukuhamba kwe-bonding kuyabiza-iyasebenza nakwixabiso leyunithi ephezulu kancinane, ngaphandle kokuba ziyayiphelisa imfuneko yeejigi zendibano ezintsonkothileyo okanye zokubumba.