I-Peek ithatha indawo yentsimbi kwaye iqale isetyenziswe kwi-Mercedes-Benz Gearbax ye-Gears

I-Peek ithatha indawo yentsimbi kwaye iqale isetyenziswe kwi-Mercedes-Benz Gearbax ye-Gears

Iplastiki yokusebenza kakhulu njengePolyserethertone Iigiya ze-Pekk zisetyenziswa okokuqala kwi-Mercedes-Benz Beaboby.

I-STASTER YETYENZISEKILE I-Vetakhep 5000 g ziigiya zokuqala zeplastiki eziza kusetyenziswa kwiMercedes-Ben. Ithatha indawo yegiya esetyenzisiweyo ngaphambili

Iigiya zeplastiki zithatha indawo yokutshintsha iigiya zesithsaba kwizicelo ezininzi kuba zikhaqwe, zikhawuleza, zinepropathi esebenzayo, yenziwa ngokufanelekileyo kwaye inxibe ngokukuko. Iimveliso ezenziwe ngeeplasitiki ezisebenzayo ezinjengePolyserhertone Eyona nto ibalulekileyo yokuvavanywa kovavanyo kunye noyilo lwecandelo lohlobo lweplastiki.

Ngo-2018, iziko lobuchule kwi-Tribology lasekwa eDarmstadt, eJamani, ukuphucula iiplasitiki ezisebenzayo ngokuveliswa kwamacandelo, ezinje: i-Peek, i-Polyamide 12 (PI). Ukongeza kwiindlela eziqhelekileyo ezinjengePIN-kwidiski kunye novavanyo lwe-Bhodi-kwi-In-Diski ye-Mini), bafaka uhlobo olutsha lwe-rig (Fig. 1).

Umzobo 1: IZiko leKhola leNdawo eQhelekileyo eDarmstadt, iJamani, ifake irig yovavanyo lwegiya ukuvavanya i-gears yeplastiki yokuvavanywa: Ivumela uyilo lweegesi ngokumisela amaxabiso athile afanelekileyo

Ibhentshi yovavanyo lokuvavanywa kweegiya zeplastiki

Ukuziphatha kunye nokunxiba okuziphetheyo kweegiya kuntsonkothile kwaye kuxhomekeke kuxinzelelo oluthile lwasekhaya ekunxibelelaneni nentsimbi yentsimbi kunye neemeko zokusingqongileyo ngexesha lokusebenza. Ukuza kuthi ga ngoku, iimvavanyo zemodeli ezinjengokuvavanywa kwePIN-kwi-dis-dis-i-discy kunye neemvavanyo zemveli ze-static kunye neemvavanyo eziguqukayo kwiisampuli ezisemgangathweni zisebenze ngokufanelekileyo imiqathango ekhethekileyo yegiza yegiza. Endaweni yoko, amaxabiso athile oyilo yoyilo anokumiselwa kwiigiya zeplastiki kwimvavanyo yecandelo kuvavanyo olutsha lwegiya. Ukuxinana okuguqukayo kunye noomatshini bokutshintsha kwemithwalo kusetyenziswa kwi-pin eqhutywa ngentsimbi ukuya kwamazinyo eplasitiki phantsi komthwalo we-torque echaziweyo, isantya kunye neemeko zobushushu. Iigiya zeplastiki zithathwe ngeoyile okanye igrisi njl. Njl. Inokuthelekiswa neegiya zeplastiki ezenziweyo.



Olu vavanyo lwenziwa ngokwe-vgi lama-vdi angama-2736-4 emigangathweni ("thermoplastic gias: Ukumiselwa kwemithwalo yomthamo weGear") ukumisela umthwalo we-Gearty's " Ezi ziphumo zisetyenziswa njengedatha eluhlaza kwiinkqubo zokulinganisa i-gear ye-gear ye-gear kwiNkqubo yokuNceda abaThengi. Ukuvavanywa ngokufuthi kuyaqhubeka de igiya iyasilela ngenxa yokunxiba okanye ukugqobhoza iingcambu. Ubushushu beengcambu zobungalisayo buchaphazela ukwahluka komthwalo kunokuba kukumelana, ke kunokulinganiswa kwaye kulawulwa ngenzwakazi (ir) yezinzwa kwimidlalo ekhoyo.

Ukukholisa iipropathi zoomatshini kunye nokuxhathisa iikhemikhali ze-peek

Xa kuphuhliswa ii-polymers eziphezulu kakhulu kwiigiya, iimfuno ezahlukeneyo zemfundo, i-thermal kunye nezoqeqesho kufuneka zilungelelaniswe kangangoko kunokwenzeka ngokoxinzelelo ezichaphazelekayo. Uhlengahlengiso lwezinto ezithile lunokuchaphazela kakubi ukusebenza kwe-gear. Umzekelo, ukongeza ngamanye amaxesha okusetyenziselwa ukuphucula iipropathi ze-anti-nxiba okanye ukunciphisa ukungasebenzi kakuhle kwegiya yegiya (kuxhomekeke kwi-adticle matrix) ukuba ibe ngumthombo weziphene okanye amathuba okuwa ).

Xa kuthelekiswa neeplasitiki zobunjineli ezifana nePolyxoloTylene (POM), i-POM), i-POM), i-PA6 kunye ne-PA66, i-Peecy Playpt eSebenzayo ineenzuzo ezininzi xa isetyenziswa njengezinto zegiya. Ngokukodwa, inokudlulisela imithwalo ephezulu kumaqondo obushushu aphezulu. Ngenxa yokufunxa kwamanzi angathandekiyo kunye ne-shrinkage ephantsi kunye ne-shrinkage yeposi, iindawo ezibunjiweyo zizinto ezizinzileyo, kwaye zisekwe kubume bemolekyuli bezixhobo ze-thermoplasticisticisticisticicicicicisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticisticististi. Ezi ndawo zibaluleke kakhulu xa iigiya zithathwe ngeoyile yemoto okanye i-fluid yothumelo, eyindawo ebonakalayo yeeplasitiki ezininzi.

Ukugcinwa kwioyile kuhlala kungatshintshi

Ukuthatha inqanaba lokudluliselwa emva kokugcinwa ngokupheleleyo kwi-gear ioyile (umzobo 2), sinokubona ukuba i-Polyphthalam 4000 g) I-vestale ye-GORTUS, iphumelele imodeli eyomeleleyo) yi-pullamide ye-pullamatic enozinzo lobushushu obuphezulu. I-Elonging kwi-Veeven ye-Peek ayitshintshanga, kodwa i-elonghation ngekhefu ye-PPA inciphile kakhulu emva kokugcina iiyure ezingama-500. Iimpawu zeBrittle ze-Peett zibonakaliswa kwi-Elongetions kwisivuno, ngelixa i-PPA ibonakalisiwe kwi-Elonglotion nge-Elongation ngenxa yokunqongophala kwesivuno. Iimvavanyo ezongeziweyo ezongeziweyo zovavanyo zibonisa indlela yokuziphatha komlinganiso.

Umzobo 2: Isivuno se-Elongwetion ye-Peek kwaye waphula i-PPA emva kokugcinwa ngokupheleleyo kwe-gear ye-oyile nge-150 ° C: I-Elongition ye-PPA ihla kakhulu, ngelixa i-elongwetion yexabiso le-Pek ihlala ifana.

Xa kuthelekiswa nenye iplasitiki yobunjineli, i-Peek's ephezulu ye-Peek kunye ne-thermal yenze ukuba iqhubeke iphela kwizicelo zeGear. Oku kuboniswanelisiwe ziigiya zokuvavanya i-ductur huctule yemolekyuli ephantsi kweemeko ezomileyo nezeoli nge-80 ° C no-130 ° 2 ° 2 ° 2 ° 2), kusetyenziswa irig yovavanyo. Igiya yeplastiki iqhutywa nge-650rpm ngephinano kunye nobunzima obuthile obuthile kunye nobunzima. Isiphumo kukuba i-Peected Peected I-oyile inokudlulisela imithwalo ephezulu kakhulu ngaphezulu kobomi obude kakhulu. Phantsi kweemeko ezikhoyo zokuqhuba, iigiya zihlala zisilele ngenxa yokunxiba, ngelixa ziphantsi kweemeko ezinobhejane zeoli, iigiya zihlala zisilele ngenxa yengcambu yengcambu yefreyimu.

Umzobo 3: Ukuvavanywa koomatshini kweegiya ezenziwe nge-vestmep 5000 g: iigiya ze-oyile ze-oyile zinokudlulisela imithwalo ephezulu kwimijikelezo emininzi

Ukunciphisa ukungqubana nge-peek

Izibonelelo ezongezelelweyo ze-Peek zibandakanya ukuntywila ngokugqwesileyo kwaye zinxibe iipropathi, ngakumbi i-ityhefu esezantsi kunye nokusebenza kwengqumbo. Eli lokugqibela liqinisekisa ukugcinwa kwamandla ukuba isebenza okanye inyibilikisiwe. Oku kuqinisekisiwe kolunye uhlobo (Fig. 4). I-fictions coefficients ye-Steel-inyibilikisi-i-intshi ye-injini kwi-oyile ye-injini nge-9 ° C ngokudlulisela ibhola yentsimbi kunye ne-disk yentsimbi yentsimbi ifundwe. Ngexesha lokuvavanywa, ibhola yentsimbi yayilayishwe nge-30n kwaye isebenza ngomyinge we-25%, enokusetyenziselwa ukuvavanya isiphakamiso seSilayidi seSilayidi.

Umzobo wesi-4: I-Coetions Coeregedigy ye-Steel-Steel-Inetion kwi-oyile ye-oyile ye-motor: i-coefficies iphantsi kakhulu ngokusetyenziswa kweplastiki yeplastiki ye-vest ye-vest ye-vest ye-vest ye-vest yeplanga ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestmet ye-vestalep ye-vest ye-vest ye-vest yeplanga ephezulu ye-vestaleep 5000 g

Ijika elibizwa ngokuba yi-strove libonisa ukuba ukusetyenziswa kwe-peek-conitions kwiinkqubo ezinoluhlu lweoyile kwenza izisombululo ezifanelekileyo. Ukusebenza kwengqumbo yentsimbi yentsimbi yonyuswa ukuya kuthi ga kwinqanaba le-4-7. Oku kunokuchazwa yindlela yokuziphatha ye-viscoelastic ye-peek kunye nengcinezelo ye-hertzian ye-hertchian ephantsi phakathi kwendawo yoqhakamshelwano.

Ukuziphatha kwe-viscoelastic kunye nefuthe elihle lokutshixwa kwezizizathu zezizathu zeempawu zengxolo zayo ezintle. Ukupheliswa kwengxolo ye-injini ye-injini yokuthi cwaka, ukuhanjiswa okuthe cwaka kuya kuba nzima ngakumbi, ngakumbi kwizithuthi zombane. Kwi-Gease-ilitha le-Pelicted Pelipes United States, i-Peek-Paysication inciphise ingxolo ye-moya, kwezinye iimeko ngaphezulu kwe-10db (Fig. 5). Imilinganiselo yenziwa kwiqonga lemizi-mveliso kunye ne-Ama yeTekhnoloji yeTekhnoloji (iFA) kwicandelo lobunjineli boomatshini kwi-ruhr-Universion Bochum, eJamani.

Umzobo 5: Imilinganiselo yengxolo ye-airborne ye-Geek-inyibiliki yentsimbi kunye nentsimbi yentsimbi kwicandelo lama-3000 kwi-RPM: ngokusebenzisa i-DPM, inqanaba lengxolo lancitshiswa ngaphezulu kwe-10 db kwiimeko ezithile

Mercedes-Benz: iplastiki endaweni yentsimbi

Iinzuzo ezichazwe ngasentla zivumela usetyenziso lwe-peek amagidi kwi-Merces Senterporions kwiMercedes-Benz (umfanekiso wentloko). Le yeyona gick yokuqala yeplastiki esetyenziswe kwesi sicelo senjini esinzima, ithathe indawo yegiza yentsimbi enikezelweyo. Emva kothotho lweemvavanyo kunye novavanyo ngamahlakani ezemveliso, i-Peek ilungele ukusetyenziswa kule meko inobungozi. Iigiya zenziwa ngokufakwa kwenaliti, ezisebenza ngexabiso kwaye zichanekile, kwaye azifuni ukwenziwa kweposi ngokubanzi njengoko bekunjalo ngentsimbi yentsimbi. Ukongeza, umzuzu ophantsi we-inetia ngexesha lokuqhuba ugcina amandla kwaye wenze ukuba isebenze ngokugudileyo kunye nengxolo yengxolo.

Isishwankathelo kunye ne-Outlook

Ukusuka kubunjineli bemveli yemveli ukuya kwiirobhothi kumanzi, izicelo ezinokubakho zeegiya zeplastiki ziyahluka kakhulu. Iiplasitiki ezisebenzayo ezifana ne-Peek yandiswa ukusetyenziswa kweegiya zeplastiki kuhanjiswa kwiTorque ephezulu, isantya kunye neqondo lobushushu. Ukufezekisa oku, kufuneka zenziwe ngeplanga engqondweni ukuze zisetyenziswe ezincinci, zilula kunye nezixhobo ezifanelekileyo zamandla. Ezi ndawo zintle ziya kukhuthaza ukusetyenziswa kweeglasi ze-pek kwizithuthi zombane kunye nokuthengisela iigiya zentsimbi. I-3D iprinta iya kunceda kule meko. Iya kuvula kwakhona amathuba amatsha esicelo. Ukusetyenziswa kwezisombululo ze-hybrid ngakumbi kunye nokudityaniswa kwemisebenzi eyongezelelekileyo njengokupholisa kunye neendlela zokupholisa kwakhona kuzisa ezinye iindlela.

Zonke zonke, intshiseko ye-inxungl ye-inxungta ye-inxungction izisa inkululeko yoyilo enkulu kwi-Gearli yoyilo. Oku kwenza ukuba kwenzeke ukuba basebenzise iimveliso ezenziwe ngeplasitiki eqeqeshiweyo kwindawo yamazinyo, i-faces eguqulwe ngamazinyo kwindawo yemithi ye-fibermes eqinileyo kwindawo ejikeleze i-Peak, njl. Banika iindleko -Ngapheshele imveliso kwaye ichanekile, umz. Ukongeza, iimveliso zezinto ezibonakalayo ezisekwe kwi-Smart zivumela uyilo lweenkqubo ze-forilogicals ezingenabantu abangaphandle kwendlela efanelekileyo yokutyibisa amandla kunye nokugcina izinto ezibonakalayo (ngokunyanzeliswa kunye nokongezwa).