Irabha ye-Styrene-Butadiene
Isingeniso esibalulekile:
Irabha ye-styrene-butadiene (SBR), eyaziwa nangokuthi irabha ye-polybutadiene, iyirabha yokwenziwa. Yakhiwa nge-polymerization yama-monomers amabili, i-butadiene ne-styrene. I-SBR inokumelana okuhle kakhulu nokugqoka, ukumelana nokuguga nokunwebeka, futhi isetshenziswa kabanzi ezikhathini ezahlukahlukene.
Ububanzi besicelo:
Ukukhiqiza amathayi: I-SBR ingenye yamarabha asetshenziswa kakhulu ekukhiqizeni amathayi. Ingasetshenziswa ekunyatheleni amathayi, izindonga eziseceleni kanye nomzimba ukuze unikeze ukudonsa okuhle nokumelana nokugqoka.
Imikhiqizo yenjoloba :I-SBR isetshenziselwa ukukhiqizwa kwemikhiqizo yenjoloba ehlukahlukene, njengezigxivizo, amapayipi, amapayipi, ama-MATS enjoloba, njll. Ukunwebeka nokuqina kwayo kuyenza ilungele le mikhiqizo.
I-Sole: Ngenxa yokuthi i-SBR inokumelana nokugqokwa okuhle kakhulu kanye ne-anti-slip, ivame ukusetshenziswa ekwenzeni izicathulo zezemidlalo, izicathulo zokusebenza nezinye izicathulo.
Izinamathiselo zezimboni :I-SBR ivamise ukusetshenziswa njengengxenye yezinto ezinamathelayo zezimboni ukuze kuhlanganiswe izinto ezahlukahlukene njengezinsimbi, amapulasitiki nokhuni.
Impahla yezemidlalo :I-SBR iphinde isetshenziselwe ukwenza izinto zezemidlalo ezifana ne-basketball nebhola lezinyawo, kanye nezindawo zokugijima amathrekhi nemishini yokuqina.
Imikhiqizo Ebunjiwe Yokujova Ngokwezifiso
Izinqubo Zokukhiqiza Imikhiqizo Yerabha
Ukukhiqizwa kwezimpahla zenjoloba kuhilela izinqubo ezimbalwa eziyinkimbinkimbi eziguqula izinto zenjoloba ezingavuthiwe zibe imikhiqizo yokugcina. Lezi zinqubo ziyahlukahluka kuye ngohlobo lwerabha esetshenzisiwe kanye nento ethile ekhiqizwayo. Okulandelayo yizinsizakalo zokukhiqiza irabha esizihlinzekayo ukuze sisekele izidingo zakho:
Ukubunjwa Kokucindezela
Ekubunjweni kokucindezelwa, inhlanganisela yerabha ifakwa endaweni yokubumba, futhi ingcindezi isetshenziswa ukucindezela impahla ibe yisimo esifunwayo. Ukushisa bese kusetshenziswa ukwelapha irabha. Le ndlela ivame ukusetshenziselwa ukukhiqiza imikhiqizo efana ne-gaskets, izimpawu, kanye nezingxenye zezimoto.
Ekubunjweni kokucindezelwa, inhlanganisela yerabha ifakwa endaweni yokubumba, futhi ingcindezi isetshenziswa ukucindezela impahla ibe yisimo esifunwayo. Ukushisa bese kusetshenziswa ukwelapha irabha. Le ndlela ivame ukusetshenziselwa ukukhiqiza imikhiqizo efana ne-gaskets, izimpawu, kanye nezingxenye zezimoto.
UmjovoUkubumba
Ukubumba umjovo kuhlanganisa ukujova irabha encibilikisiwe esikhunjeni ngaphansi kwengcindezi ephezulu. Le nqubo ilungele ukwenza izingxenye eziyinkimbinkimbi nezinembayo, ezifaka izingxenye zezimoto nezimpahla zabathengi. Ukubunjwa kwe-overmolding kanye nokufaka izinhlobonhlobo zale nqubo, ezibandakanya ukuhlanganiswa kwezingxenye zensimbi eziqediwe endaweni yokubumba ngaphambi kokujova irabha.
Ukubumba umjovo kuhlanganisa ukujova irabha encibilikisiwe esikhunjeni ngaphansi kwengcindezi ephezulu. Le nqubo ilungele ukwenza izingxenye eziyinkimbinkimbi nezinembayo, ezifaka izingxenye zezimoto nezimpahla zabathengi. Ukubunjwa kwe-overmolding kanye nokufaka izinhlobonhlobo zale nqubo, ezibandakanya ukuhlanganiswa kwezingxenye zensimbi eziqediwe endaweni yokubumba ngaphambi kokujova irabha.
Dlulisa Ukubumba
Ukuhlanganisa izici zokucindezelwa nokubunjwa komjovo, ukubumba kokudlulisa kusebenzisa inani elilinganiselwe lenjoloba ekamelweni elishisayo. I-plunger iphoqelela okokusebenza endaweni yokubumba, iyenze ifaneleke ukukhiqiza izixhumi zikagesi, ama-grommets, nezingxenye ezincane ezinembayo.
Ukuhlanganisa izici zokucindezelwa nokubunjwa komjovo, ukubumba kokudlulisa kusebenzisa inani elilinganiselwe lenjoloba ekamelweni elishisayo. I-plunger iphoqelela okokusebenza endaweni yokubumba, iyenze ifaneleke ukukhiqiza izixhumi zikagesi, ama-grommets, nezingxenye ezincane ezinembayo.
I-Extrusion
I-Extrusion isetshenziselwa ukudala ubude obuqhubekayo berabha enomumo othize we-cross-sectional, njengamapayipi, amashubhu, namaphrofayela. Irabha iphoqelelwa nge-die ukuze kuzuzwe ukucushwa okufunayo.
I-Extrusion isetshenziselwa ukudala ubude obuqhubekayo berabha enomumo othize we-cross-sectional, njengamapayipi, amashubhu, namaphrofayela. Irabha iphoqelelwa nge-die ukuze kuzuzwe ukucushwa okufunayo.
Ukwelapha (Vulcanization)
Ukwelapha, noma ukwenza i-vulcanization, kuhlanganisa ukuxhumanisa amaketanga e-polymer yenjoloba ukuze kuthuthukiswe amandla, ukunwebeka, nokumelana nokushisa. Lokhu kufezwa ngokusebenzisa ukushisa nokucindezela emkhiqizweni wenjoloba ebunjiwe, ngezindlela ezivamile ezihlanganisa isitimu, umoya oshisayo, nokwelapha nge-microwave.
Ukwelapha, noma ukwenza i-vulcanization, kuhlanganisa ukuxhumanisa amaketanga e-polymer yenjoloba ukuze kuthuthukiswe amandla, ukunwebeka, nokumelana nokushisa. Lokhu kufezwa ngokusebenzisa ukushisa nokucindezela emkhiqizweni wenjoloba ebunjiwe, ngezindlela ezivamile ezihlanganisa isitimu, umoya oshisayo, nokwelapha nge-microwave.
Irabha ukuze Metal Bonding
Inqubo ekhethekile, i-rubber to metal bonding idala imikhiqizo ehlanganisa ukuguquguquka kwerabha namandla ensimbi. Ingxenye yenjoloba yenziwe kusengaphambili noma ibunjwe, ibekwe endaweni yensimbi nge-adhesive, bese ingaphansi kokushisa nokucindezela kokuvuthwa noma ukuphulukiswa. Le nqubo ibopha ngokwekhemikhali irabha ensimbi, idale uxhumano oluqinile noluhlala isikhathi eside olubalulekile ezinhlelweni ezidinga kokubili ukudambisa ukudlidliza nokusekelwa kwesakhiwo.
Inqubo ekhethekile, i-rubber to metal bonding idala imikhiqizo ehlanganisa ukuguquguquka kwerabha namandla ensimbi. Ingxenye yenjoloba yenziwe kusengaphambili noma ibunjwe, ibekwe endaweni yensimbi nge-adhesive, bese ingaphansi kokushisa nokucindezela kokuvuthwa noma ukuphulukiswa. Le nqubo ibopha ngokwekhemikhali irabha ensimbi, idale uxhumano oluqinile noluhlala isikhathi eside olubalulekile ezinhlelweni ezidinga kokubili ukudambisa ukudlidliza nokusekelwa kwesakhiwo.
Ukuhlanganisa
Ukuhlanganisa kuhlanganisa ukuxuba izinto zenjoloba eluhlaza nezithasiselo ezihlukahlukene ukuze kwakhiwe inhlanganisela yerabha enezici ezithile. Izengezo zingabandakanya ama-ejenti okwelapha, ama-accelerator, ama-antioxidants, ama-filler, ama-plasticizers, nama-colorants. Lokhu kuxutshwa kuvame ukwenziwa emshinini onama-roll amabili noma kumxube wangaphakathi ukuze kuqinisekiswe ukusatshalaliswa okufanayo kwezithasiselo.
Ukuhlanganisa kuhlanganisa ukuxuba izinto zenjoloba eluhlaza nezithasiselo ezihlukahlukene ukuze kwakhiwe inhlanganisela yerabha enezici ezithile. Izengezo zingabandakanya ama-ejenti okwelapha, ama-accelerator, ama-antioxidants, ama-filler, ama-plasticizers, nama-colorants. Lokhu kuxutshwa kuvame ukwenziwa emshinini onama-roll amabili noma kumxube wangaphakathi ukuze kuqinisekiswe ukusatshalaliswa okufanayo kwezithasiselo.
Ukugaya
Ukulandela ukuhlanganiswa, i-compound yerabha ibhekana nezinqubo zokugaya noma zokuxuba ukuze kuthuthukiswe i-homogenize futhi ilolonge into. Lesi sinyathelo sisusa amabhamuza omoya futhi siqinisekisa ukufana kunhlanganisela.
Ukulandela ukuhlanganiswa, i-compound yerabha ibhekana nezinqubo zokugaya noma zokuxuba ukuze kuthuthukiswe i-homogenize futhi ilolonge into. Lesi sinyathelo sisusa amabhamuza omoya futhi siqinisekisa ukufana kunhlanganisela.
Ngemuva kokucubungula
Ngemva kokwelashwa, umkhiqizo wenjoloba ungase ubhekane nezinqubo ezengeziwe, okuhlanganisa ukugunda, ukucwazimula (ukukhipha izinto ezidingekayo), nokwelashwa kwangaphandle (okufana nokunamathiswa noma ukupholishwa) ukuze uhlangabezane nezimfuneko ezithile.
Ngemva kokwelashwa, umkhiqizo wenjoloba ungase ubhekane nezinqubo ezengeziwe, okuhlanganisa ukugunda, ukucwazimula (ukukhipha izinto ezidingekayo), nokwelashwa kwangaphandle (okufana nokunamathiswa noma ukupholishwa) ukuze uhlangabezane nezimfuneko ezithile.