Izinto zokuncamathelisa zokuFakwa kweSicelo
Ukusebenza okuphezulu kwe-Deepmaterial enye kunye nenxalenye ezimbini zezitywini zemizi-mveliso kulula ukuzisebenzisa kwaye ziyafumaneka ukuze zisetyenziswe kwizicelo ezifanelekileyo. Banikezela ngezisombululo ezixabisa kakhulu kwizicelo zetekhnoloji ephezulu. Iimveliso zethu zokutywina ziquka i-epoxies, i-silicones, i-polysulfides kunye ne-polyurethanes. Zisebenza nge-100% kwaye azinazinyibilikisi okanye izinyibilikisi.
Yintoni umahluko phakathi kweAdhesives & Sealants?
Ii-sealants zi-polymers ezine-tight ye-molecular structure engavumeli ukungena. Ziqulethe i-epoxies eyomisa ngokukhawuleza eyenza isiphelo esithambileyo. I-Adhesives sisakhiwo esiyinkimbinkimbi ngakumbi eyenzelwe ukubamba kunye nokubopha kwinqanaba leselula.
Izincamathelisi vs
- Izitywini ziyilelwe ukuvala izikhewu phakathi komphezulu kwaye zithintele izinto ezinjengothuli, amanzi, okanye ubumdaka ekungeneni kuzo. Izinto zokuncamathelisa ziyenziwa ukwenza imiphezulu emibini ibambene ukuze ingabinako ukwahlulwa.
- Ii-sealants zinamandla asezantsi kunye nobude obuphezulu / ukuguquguquka kwaye azisetyenziselwa ukudibanisa izinto kunye ngelixa izincamathelisi zenzelwe ukuncamathela izinto ezimbini kunye ngokuncamathela.
- Izinto zokutywina azisoloko zinamandla okuncamathelisa afunekayo ekuncamatheleni ixesha elide kwaye izinto zokuncamathelisa aziwomi kakuhle xa zisetyenziswa kumphezulu wangaphandle.
- Ii-sealants zine-paste-like consistency evumela ukuzaliswa kwezithuba phakathi kwe-substrates kwaye inokuncipha okuphantsi emva kokufakwa kwesicelo. Izinto zokuncamathelisa zikwimo yolwelo ezithi zibe qinileyo emva kokufakwa kwesicelo zize zisetyenziswe ukubopha imathiriyeli kunye.
- I-Adhesive iya kunika imvakalelo eqinile kunye neyomelele kwaye ijonge ngokuchasene ne-sealants ephantsi ngamandla kwaye ithambile ngakumbi.
Ukutywinwa okuSebenzayo ngee-Adhesives
Izitywina zinempembelelo eqinisekileyo ekusebenzeni kunye nobomi obude bofakelo, iindibano, kunye namacandelo. Ukanti, ingqalelo idla ngokunikelwa kubo kuphela xa besilela. Ngelixa i-O-rings inokuba zezona zitywina zisetyenziswa kakhulu kwaye ezinye iindidi zamatywina angatshintshiyo zikhona, itekhnoloji ye-adhesive bonding ene-gaskets elulwelo kunye ne-seal bonding ivula iinketho ezongezelelweyo zokutywinwa okuthembekileyo.
Ukutywinwa okuSebenzayo ngee-Adhesives
Izitywina zinempembelelo eqinisekileyo ekusebenzeni kunye nobomi obude bofakelo, iindibano, kunye namacandelo. Ukanti, ingqalelo idla ngokunikelwa kubo kuphela xa besilela. Ngelixa i-O-rings inokuba zezona zitywina zisetyenziswa kakhulu kwaye ezinye iindidi zamatywina angatshintshiyo zikhona, itekhnoloji ye-adhesive bonding ene-gaskets elulwelo kunye ne-seal bonding ivula iinketho ezongezelelweyo zokutywinwa okuthembekileyo.
Kwimveliso yemizi-mveliso, izithuba ezidibeneyo phakathi kwamacandelo zihlala zifuna ukuvalwa ukuze kuthintelwe ukungena komoya, uthuli, amanzi kunye neekhemikhali ezinobundlobongela. Oku kubaluleke ngakumbi kwiinkalo zombane, iimoto, ubunjineli boomatshini, kunye nobunjineli benkqubo. Usetyenziso oluqhelekileyo lwahlukene njengemizi-mveliso esetyenziswa kuyo. Eminye imizekelo zizindlu zamacandelo e-elektroniki, oomazibuthe, kwaye, ewe, iinkqubo ze-fluidic.
Ukusa kumlinganiselo othile, amacandelo anokutywinwa ngendlela yolwakhiwo olusulungekileyo ngaphandle kokutywinwa okongeziweyo. Nangona kunjalo, ngokunyuka kweemfuno kunokufuneka ukuba kusetyenziswe isitywina esahlukileyo .. Kwinjineli, lo msebenzi ujongwa ngokuqhelekileyo ngokuyila i-geometry yecandelo ukwenzela ukuba isitywina esisisigxina singafakwa kwi-gap edibeneyo. Ngokuxhomekeke kwi-thermal, ikhemikhali, kunye neemfuno zoomatshini, izitywina zeshishini zihlala zinerubha, i-silicones, i-thermoplastic elastomers, okanye iTeflon.
Kuthekani ngerabha?
Irabha yeyona nto isetyenziswa kakhulu kwezi njongo, kwaye ukhetho lweemveliso ezenziwe zerabha luneenzuzo ezithile: zitywina kakuhle kakhulu. Uxinzelelo oluqhelekileyo olusetelwe irabha ye-nitrile kwiimeko eziqhelekileyo ze-100 °C / 24h yi-20 - 30%. Ukongezelela, ezi rubber zisekwe kakuhle kunye ne-thermal, i-chemically, kunye ne-mechanical robust, kunye neendleko eziphantsi zezinto ezibandakanyekayo. Nangona kunjalo, bakwanazo nezingeloncedo, ngakumbi ngokubhekiselele ekudityanisweni kwabo kwinkqubo yemveliso.
Ngejometri yokutywina ejikelezileyo, izinto ezingalunganga zinokuthi zingabalulekanga kwaye i-O-rings iya kuba sisisombululo sezoqoqosho. Kwimeko yeentambo zokutywina okanye iiteyiphu zokutywina ezifana nezo zisetyenziselwa izindlu, ukuveliswa okusebenzayo (sele kukho) kunzima ngakumbi. Bafuna ukudibanisa okongeziweyo kwi-manual kwindawo yokudibanisa apho iziphelo ezimbini zithintana, oku kuthetha ukuba inyathelo elongezelelweyo nelinokuchitha ixesha.
Iimilo zerabha ezintsonkothileyo zinokuveliswa ngokubethelwa ngenqindi okanye nge-vulcanizing. Oku kuvumela iinkqubo ezilula zokuvelisa, kodwa ezi zisebenza kuphela kumthamo ophezulu wemveliso, ekubeni iimbumba ezibizayo kwimilo nganye kufuneka zigcinwe kwisitokhwe.
Ukutywina iGap ngeeThermoplastic Elastomers
Izitywina ezenziwe nge-thermoplastic elastomers (TPE) zinika enye indlela. Zisetyenziswa ngokuthe ngqo kwicandelo ngokubumba inaliti. Zomelele, zimelana ne-abrasion, kwaye zibambelela kakuhle kwiiplastiki zobugcisa ezifana ne-PA, i-PC, okanye i-PBT, eyenza itywina-bubungqina bokuvuza. Kwiqondo lobushushu begumbi, i-TPE iziphatha njenge-elastomers zakudala, kodwa icandelo le-thermoplastic linciphisa ubushushu besicelo kwi-80 - 100 °C, kunye neseti yoxinzelelo eyanda kumaqondo obushushu aphezulu. Kwi-TPU esetyenziswa ngokubanzi, isethi yoxinzelelo malunga ne-80% (100 °C / 24 h), kwezinye iindidi ze-TPE amaxabiso malunga ne-50 % zinokwenzeka.
Inkqubo yokutofa ilula kune-vulcanizing, kodwa ayibalulekanga, ngakumbi ngenxa yeempawu zokusetyenzwa kwe-TPUs kunye nokuba isixhobo siyafuneka kwijiyometri nganye. Ukongezelela, umatshini wokubumba we-injection multi-component uyadingeka ukuze ugweme ukufaka icandelo kwakhona kwisinyathelo esongezelelweyo senkqubo.
Ulwelo lokuqala, emva koko uQinise
Ngee-gaskets ezingamanzi iindleko zotyalo-mali ezinjalo azenziwanga. Ezi ntlobo ze-gasket azikwazi ukuqukuqela, iimveliso ezincamathelisa kakhulu ezisekwe kwi-viscous ezisasazwa ngokobude obufunwayo kunye nokumila kwaye zinyange kwindawo yazo yesicelo. Ukuguquguquka kwesicelo sabo kubenza bafanelekele iijometri zecandelo elintsonkothileyo, nokuba zintathu-dimensional. Olunye uncedo lwee-gaskets zolwelo xa kuthelekiswa neegaskets eziqinileyo kukuba aziphumli nje ngokuyinxenye kwiincopho ezirhabaxa, ngaloo ndlela zitywina iindawo ezingcono ze-wavy kunye nokuvumela unyamezelo oluphezulu lwemveliso.
Xa kuthelekiswa nerabha entsonkothileyo ngamanye amaxesha okanye izitywini ze-TPU, zibandakanya amanyathelo ambalwa enkqubo, ukunciphisa amaxesha okuseta umatshini, kwaye kuvelise ukwaliwa okuncinci kunokufa. Iinkqubo zokuvelisa ziyakwazi ukuzenzekelayo ngokulula, kunye nenkqubo enye kuphela efunekayo kwimveliso yazo zonke iinxalenye. Iimpazamo zokukhupha ezinokuthi zibekho kwintsimbi yokutywina zichongiwe nge-fluorescence yolawulo lomgangatho we-optical inline. Ekubeni akusekho mfuneko yokubamba inani elikhulu lamatywina akhoyo, iindleko zokugcina azikho umba.
Ukuza kuthi ga ngoku, iimveliso ezikwisiseko se-silicone okanye i-polyurethane zihlala zisetyenziselwa i-gaskets engamanzi. Nangona kunjalo, ezi nkqubo zimbini zinyanga kancinane kwaye ke zifaneleke ngcono kumacandelo amakhulu okanye uthotho oluncinci. Kwimeko yochungechunge olukhulu, inkqubo engabonakaliyo kunye neguquguqukayo eyenziwa yi-gaskets ye-liquid kaninzi ayikwazanga ukuhlawulela ukungabikho kwesantya xa kuthelekiswa ne-rubber okanye i-TPU seals.
Nangona kunjalo, ixesha elithile ngoku, ukukhanya-ukunyanga i-acrylates yecandelo elinye liye lithengiswa, libonisa amandla abo ngokukodwa kwiichungechunge ezinkulu. Ukukhanya okuphezulu kwe-UV okunamandla kuqinisekisa ukuba i-adhesive ifikelela kumandla ayo okugqibela ngaphakathi kwemizuzwana embalwa, ngaloo ndlela ivumela amaxesha omjikelezo omfutshane kunye nokucubungula ngokuthe ngqo kwamacandelo, okuyimiba ebalulekileyo ukufezekisa umthamo ophezulu wemveliso.
Iimpawu ezintle zokubuyisela imilo yezixhobo ziqinisekisa ukutywinwa okuthembekileyo emva kokujoyina: iseti yoxinzelelo oluphantsi ukuya kwi-10 % (85 °C, 24 h) ivumela ukuba baphinde baphinde baphinde baphinde babuyele kwiimilo zabo zangaphambili xa kungekho xinzelelo. Iinguqulelo ezininzi ezomileyo kumphezulu zivumela ukuphinda kuqhawuke. Ukongeza, i-acrylate-based based-form-in-place gaskets ihlangabezana neemfuno ze-IP67, ngenxa yeempawu zazo zokugxotha amanzi. Ziyi-PWIS- kunye ne-solvent-frees, ebonisa uluhlu lobushushu ukusuka ku -40 ukuya kwi-120 °C.
Ukutywinwa kunye nokudibanisa kwi-One Go
Ukudityaniswa kwetywina sisisombululo esifanelekileyo ukuba itywina lenzelwe ngokucacileyo ukuba alinakususwa. Apha kwakhona, kunokwenzeka ukwenza nayiphi na imilo kunye nokusebenzisa i-fluorescence yokulawula umgangatho ongaphakathi. Inzuzo eyongezelelweyo kukuhanjiswa kwamandla - i-adhesives ayigcini nje ukutywina amacandelo kodwa idibanise ngokusisigxina. Oku kuguqulela kwiimfuno ezincitshisiweyo zendawo. Izikrufu azisafuneki, zivumela izindlu ezincinci, i-miniaturization yeendibano, kunye namanyathelo ambalwa okuvelisa.
Ukusetyenziswa komthamo ophezulu, i-acrylates yokukhanya kunye ne-epoxy resins zifanelekile ngokukodwa, kuxhomekeke kwiimfuno ze-thermal kunye neekhemikhali. Ngelixa i-epoxy resins izinzile kancinci kwiqondo lobushushu, ii-acrylates zibonelela ngokuguquguquka okukhulu kunye nokunyanga ngokukhawuleza. Ukongeza, iinguqulelo ezimbini zokunyanga zikhona kuzo zombini iintsapho zemveliso. Ukunyanga kwii-ovens okanye ngokuqhagamshelana nomswakama womoya, ezi ntlobo zokubambelela ziqinisekisa ukuwela ngokupheleleyo nakwiindawo ezinomthunzi.
isiphelo
Izitywina azikho nje izangqa zerabha. Njengayo nayiphi na imathiriyeli, iyantlukwano iye yanda kakhulu. Itekhnoloji yokudibanisa kunye ne-gaskets yolwelo enyanga ukukhanya kunye nezisombululo zokutywina zibonelela abasebenzisi ngeendlela ezintsha zokuphucula uyilo lwabo kwaye bafezekise zombini iinkqubo zemveliso ezisebenzayo neziguquguqukayo.
Ibhokisi yolwazi: Iseti yoxinzelelo
I-deformation esisigxina ibalulekile kwiitywina, ekubeni i-flange seal ixinzelelwe kubukhulu obuthile kwaye yenza uxinzelelo kwi-flange surfaces. Olu xinzelelo luyehla ngokuhamba kwexesha ngenxa yokuguqulwa kwezinto zokutywina. Ukomelela kwe-deformation, kokukhona amandla acinezelayo kwaye ngaloo ndlela umphumo wokutywina uyancipha.
Le propati idla ngokubonakaliswa njengeseti yoxinzelelo. Ukumisela ucinezelo olusetelwe ngokweDIN ISO 815 okanye i-ASTM D 395, isampuli yecylindriki ixinzelelwe ukuya kuma-25 % (ixabiso eliqhelekileyo) kwaye emva koko igcinwe ixesha elithile kwiqondo lobushushu elinikiweyo. Amaxabiso aqhelekileyo ziiyure ezingama-24 kwi-100 °C okanye i-85 °C. Ngokuqhelekileyo imizuzu engama-30 emva kokunciphisa uxinzelelo, ubukhulu bulinganiswa kwakhona kwiqondo lokushisa, ukugqiba ukuguqulwa okusisigxina. Okukhona isezantsi iseti yoxinzelelo, kokukhona izinto ziphinda zafumana ubukhulu bayo bokuqala. Iseti yoxinzelelo ye-100 % iya kuthetha ukuba umboniso awubonisi ukubuyiswa kwemilo kwaphela.
I-Deepmaterial's Polyurethane Sealants ibonelela ngebhondi eyomeleleyo, ebhetyebhetye kwaye eyomeleleyo ye-elastomeric etywina ngokuchasene nezinto. Bagqwesa kwizicelo ezicela umngeni kwimizi-mveliso, ezothutho kunye nezokwakha kwaye zinokupeyintwa nje ukuba ulusu lufomekile. Ezi zitywina ziyafumaneka kwiintlobo ezininzi zobunzima, amaxesha avulekileyo kunye nemibala ukuhlangabezana neemfuno zakho zesicelo.
