Izinqondo Ezikhethekileyo Zematrix Yomxube Kwi-Diamond Blades Ezikhuphakekileyo

Ukufundwa kohlobo lomxube kumsebenzi wexesha le-diamond

Imatriksi yobuchwepheshe buxhunywe kumaplethi wodiamond owaphakathi kuthinta njengoba yahlinzwa konke xa iplugile ngemithwalo engalunganga. Ngokuvamile, le matriksi ihlenza izinto ezintathu eziphambene: kuqala, iyakhushela izikhumba zokugayaza ukungasuka ngemuva ngenkathi isebenza; yesibili, iyahlala ukulahlwa ukuze izindiamonds ezintsha ziphume ngelixa ezindala zilahlwa; yesithathu, inceda ekususa umthwalo ongezinyawo owakhiwa ngexesha lokugaya. Umdelo omuhle wematriksi uyafumana indawo efanelekileyo phakathi kokuqhutywa kwamadimandi ngexesha elide ukuze zenze ngcono kodwa kube nenkululeko yokulahlwa ukuze iplugile isebenze kakuhle ngexesha elide. Ukufumana oku kwenzeke kuyisiphumo esibalulekilexa kusebenza nezinto ezilungile njengegranite, iiconcrete walls, okanye amatile acesele apho ixesha eligcweleyo lokugaya libalulekile kakhulu kumasebe amaprofeshini.

Ukuthi ukudweba kobuchwepheshe kuthinta kanjani inkathwazo yokugaya, ukukhathazeka kolahlwa, nokugcina kwezindiamond

Isikhephe sobuchwepheshe sikhethwayo siyenzela ngokubangelwa kweplugile:

Umthombo Wobuchwepheshe	Iimpawu Ezibalulekileyo	Ukuphakama kweqondo
Ebenzi kwi-Cobalt	Ubukhona bendawo yokunqoba kakhulu, ukuxhasana okukhulu	Ukugcina kwe-diamond okungcono (+25-30% kunega-iron)
Esebenzisa i-iron	Ubuncinane bomthelelo, izilinga zokudonsa ngokushesha	Ukugcina kahle ematerialini embalwa
I-Bronze (Cu-Sn)	Ukuthulwa kuyilapha, ubuchwepheshe besandla	Isisekelo esikhulu ekusebenzisweni kwamasonja namathuba

U-cobalt ukhula izinxweba ezikhulu kunesilinganiso sezinto ngezindonga kunalo-hlangu, okusho ukuthi izixhamla zezindonga zilahlekelwa ngaphambi kokuthi zihlule. Izifundo evela ku-Materials Engineering Report ngo-2023 zafumana ukuthi u-cobalt lunciphisa ukuhlulwa kwesibonelo kuqala kabangama-18 kuya kuma-22 phesenti kunazo zonke izinhlelo eziphathelene no-iron. Manje, nakuba u-cobalt ungena ngokwengeziwe xa kufakiwe ukugcina izindonga ziqinile, amatrikesi e-iron anamathuba wawo. Aqhutshelwa ngokushesha, futhi lokhu kuyakwethula ukusebenzela kakhulu kumadeko alula angabi mbi. Izinhlayiya zika-bronze zisuka phakathi kwalowo. Zisebenza kahle ekukhulenikoleni izinto njenge-tile nezinhlayiya ezilula, ngaphezu koko zihandlela ukugogogxa kahle ngemisebenzi, okuyinto ethandwa yonke ekuphileni kwesixhamla.

Izidingo ezitholakala ngokusebenzisa ukhetho kwe-matrix yemipunga

Ubuchwepheshe bezigaba zokudweba kusebenza ngendlela ehambisana nobukhulu bomongo. Xa kusebenziwe nokugcina okubanzi njengegranite, abayimfundo bakhetha izimo ezizinzileyo ukuze izindilinga zibonakale kahle ngokugcina. Kodwa xa kusebenziwe ngeconcrete ephuthayo, baya kumetali enhle engeyi yironi, kobalti, nikili nokopi uyikophele ukulahleka ngokushesha. Kuzindlela apho umvutho kube yinkinga, njengoba kugcina asiphi, izigaba ezinezinkimbini eziningi ze-cobalt zilondolosa isimo saso lapha kuma-650 degrees Celsius. Lezi zigaba ezithile zihlala ziqhubeka kahle kunazo ezijwayelekile zakwa-bronze, ziqhubeka kuhlinzeka ngama-40 iphasenthi ngaphambi kokulahleka. Abasebenzi bonke bathola lezi zici - kuphela ama-8 kuma-10 amabhamu aphezulu endalo ekhona manje ayisebenzisa izimpaphezo ezithile zamathambo azenzakalelayo ezifakiwe ngokuyinhloso yokusebenza, bekize bonke ububi obungcono babo ngokufaka izixuku ezifanayo nezidingo.

Izimali Ezibalulekileyo Ezisetshenziswa Kuzigaba Zokudweba Ngokucindezwa Kwamandla

Izinhlelo Ezisekelwe kuBhronzi: I-Copper ne-Tin njengezinqawula Zasekela

Izigaba zebhronzi zibonakala kakhulu kumagunywa akhethekile anesidwini ngoba i-copper inemiphefumulo yekondakthi yezulu (ngaphezu kuka-380 W/m·K) wethu kuthi i-tin isinikela ukuphila kwesililo. Xa le minomethe ihlanganiswa, zihlanganisa into eqondene nespong eyayisiphondo esivimba izulu lapha kusebenza futhi kusindisa amadotyana ukuba angaxoleki. Kizindalo ezimnandi njenge-asphalt, le magunywa ebhronzi achitha kabusha phakathi kuka-15 kuze kube ngu-20% ngaphaya kwezinye ezenziwe nganguqu. Kodwa kukhona into ebalulekile okumele kubangelwa. Uma kuthathwa izinkokhelo ezide ngokujulile njenge-granite noma i-concrete enenziwe ngamathambo, le bhronzi iqala ukuchithwa ngokushesha kunesiqondiso. Ngakho ke abasebenzi baseqile bahlala bakhetha ezinye izinto kumsebenzi omkhulu lapho ubude bezinhlalo buqhubekela.

Izixhobo Ezisekelwe kuCobalt: Ukugcina Okuhle Kwe-Diamond Nokusebenza Kwesitshalo

U-Cobalt usiza ukuthi izindlovu zihlale kahle ngendlela yomsebenzi, lokhu kususa ukuthatha kwezincwadi ngisho nge-30% emasabathakathini. Xa kufika ekususweni, u-cobalt unamandla okulubricate ngokwakhe okuthiwa kuthutha kumakoni ezenziwe ngokugcwele futhi eziphathelene kahle. Kuyakhona, izinhlelo ezisekelwe ku-cobalt zizoba zenzela izimali eziningi kunesibini noma kuthathu kulinganayo noma zingaba zingcono kunezinye izinhlelo. Kodwa bheka iziphumo ezindelela: izibhamu zilindela kakhulu xa zikhipha izindiza ezibuthakathaka njenge-granite noma basalt. Idatha yesimo sezimali kusukela emacaleni amasha ebekwe ngokulahleka kubonisa ukuthi izinkathi zokuphila zingakhuphuka phakathi kwe-40% kuya kuma-60% kude kakhulu. Kuzindlela apho ubungako buhle kuphela kubaluleke kakhulu, lokhu kuyakhiwa u-cobalt ukuthi kube nesilinganiso esingcono ngaphandle kokuthinta izindleko eziphakeme kusuku lokuqala.

Amatrikesi Asekelwe ku-Iron: Ubunzima Obunzima Ngokunyelela Ukukhupha Okunzulu

I-powders zezinjini nezimali elihle (ngaroundo 99.7% noma kahle kunezo) ziyehlisa iqhakaza phakathi kwe-hardness (okuvamekileyo phakathi kwe-120 ne-150 HV) nokuthi kufanelekile njani ukukhulula kwizikhiphi ngapha kwegciwane. Lokhu kwenza kube yinketho eqhele uma imali ihluphekile kodwa ubumnandi bakhona. Izibindi ezivela kwalawa maxabiso kudinga iziphazamo ezikhulu ngemva kokususwa kwebhloko, zihlala zidinga izigaba eziningi kangange-kilonewtons eziyi-18 zihlela zibambe amadimandi ngokuphelele ngokungu-85% ngosuku lwesimo. Uhlengahlenga olutsha lokuphatha izisayizi zezithelo kwalawa ziphowdasi zazivimela izikhala phakathi kumxabiso kuze kube ngu-5%. Ngakho ke, izinhlahla ezisezinjini zashisa emncincane kuzo okunikezwa yi-cobalt engeyomlando, kodwa ngumthelela omusha ngokungu-halfe wemali, lokhu kuyisimiso esikhulu kubasebenzi abathanda ukuncipha izindleko ngaphandle kokuchitha okuningi kakhulu kwezenzo.

Izinhlangano ze-Fe-Co-Ni-Cu: Izimiso Ezidlulisayo kwi-Matrix Strength ne-Stability

Isiloyi esinezigaba nge-Fe35Co30Ni20Cu15 sibalwa ngemikhawulo eminingi yemiphefumulo. U-Cobalt usenza kube lula ukugcina, u-nickel ungakhathazeki kusetempeshini, u-copper ungeneza inkolo yesilika, kodwa u-iron uphatha ubuchwepheshe obudingileyo. Uma le miphefumulo ihlanganiswa, zifinyelela kusuku ku-280 kuya ku-320 kwi-skala ye-Vickers hardness. Izilinganiso zabo zeziphinde zamathuba zisetempeshini zingaba ngu-10.2 kuya ku-11.6 micrometers ngameter ngadegri ye-Celsius, okufana kahle nezindilinga eziphakeme zezidolophu. Ngoba kukhona ukufanana okukhulu kwiziphinde zamathuba, kukhona ukuncipha okukhulu kwezivivinyo ezincane xa kuthathelwa izigaba ezimbalwa zokuphakama nokudla. Ngaleso sifo, iziqhamo zokugcina zilima kusuku kuma-70% kuya ku-90% ende kunazo zonke ezinye izinto xa kusebenzisa ukugcina okubangelwa.

Izibonakude Ezininzi Nezigaba Ezinesibindi

U-Tungsten No-Tungsten Carbide Ukuvutha Okuningi Kunezidingo Zokugcina

Ukudala kwezinhlayiya zetungsten kuyisimo esijwayelekile ekwakheni ukukhathazeka kwemisebenzi eminingi yasebhakabhakeni. Ngokomlando ophublikhile ku-International Journal of Refractory Metals ngoPitshini, izixhobo zokugcina ezibhobho phakathi kwe-10 ne-15 iphesenti ye-tungsten carbide zibonisa iinkcitho ezipheleleyo ze-18 iphesenti ngaphantsi kwezixhobo ezimbhalo ezenziwe ngebronze matrix xa zisebenzisa igrenayiti. Lokhu kusetyenziswa kakhulu kuthilelwa kumlinganiso wohlekisa we-tungsten owaziwa ngokuba ngu-7.5 ku-Mohs scale kunye nokuthi kwenza i-carbide structures eziphila ngexesha lenkqubo yoku-sinter. Oku kuzenzeka kakhulu kumthengi ukuze akwazi ukufumana ubungakanani obulungileyo, ngelixa kukho okunye ikakhulu kwe-tungsten kungahlawula ubungakanani be-porosity kumongo wamandla okusondela kwi-diamonds ngexesha lesebenzo.

Izongezi ze-Nickel ne-Silver: Ukwakha kweToughness kunye Nekhondla Yethermal

Ukufakela inikeli ngenkathi ephindwe kabili kuya kungama-8 ipheresente ngowonkani kakhulu kuthutha okuphazanyayo ngaphezu kwezingu-22% ngokwemithetho yomthelelo ohlelekileyo, lokhu kusho ukuthi izinto zingahlali ziqaqambe noma zihlale ngaphandle kwesimiso. Xa isiliva ifakwa phakathi kwezi-2 kuya kuma-4%, ikusiza ekulawuleni umthubi kangcono futhi. Lokhu kwenza uhlelo olukhulu emsebenzini wokugayaza, kuqeda lezikhala ezibhothe kakhulu ngaphezu kwezingu-140 ze-Celsius ng during long marble cutting sessions. Le mibili imifanekiso ihlanzekile kakhulu nezinhlelo ezihlelekile zamaye amakhasi amagcobho. Kuyisisekelo esibalulekile ekwenzeni izipangu zogaya izimpapaza zocingo ngokucophelela, ngoba le zipangu zidinga ukuthula kubadala abasheshayo ngaphandle kokuhlala.

Ukulunga Okulinganiswa: Izinguqulo Ezivela KuCobalt Khona Kwizinhlelo Zokudweba Ngamaye

Idatha yesilaborithori neyendawo ngokulinganisa ubunzima bezigaba nokuchithwa

Xa kufanele kube yindlela yokugcina ku-granite, izinto ezisekelwe ku-cobalt zenzela ubuchwepheshe obuncane ngokungu-18 kuze kube ngu-22% kunazo ezenziwa nge-iron lapho amathempurethe akhula kangaka kunesikhathi sika-200. Lokhu kusho ukuthi izixhamo zingagcina kakhulu ngaphandle kokuthakatha kakhulu. Ngokushesha, izixhamo ze-iron ziningi kakhulu ngokujwayelekile zibonakala ngama-53.2 kuSkala yeRockwell kunzulu kuka-42.9 kobalt, ngakho-ke zilindela kahle emehlweni epholile kakhulu apho izinto ziyapholakala kakhulu. Kwenziwe nezilinganiso ezithile kwembono yesimo sezinto. Emva kokusebenzisa lezi zixhamo ngemizuzwana engu-50 ngqo kumetshelo ye-granite, izinhlelo ze-cobalt zazibonisa kuphela ubuchwepheshe bezingu-5% kumasegmenti futhi izine le-iron zazinezingu-7 kuze kube ngu-9% ubuchwepheshe bokusebenza ngendlela efanayo.

Ukugcinwa kwe-diamond nokudala okude kwe-segment emehlweni yezithunywa

Indlela u-cobalt livalela ngayo kumagunya kunciphisa inkomba yakhe ekugcineni izindlovu ngenkathi kusebenziswa kuconcrete. Sikuxoxa ngaproximately 85 ukuya ku-88 iphesenti yokugcina, ngelixa izinhlelo eziqashelwe ku-iron zifana kuphela nge-72 ukuya ku-75 iphesenti. Kodwa isahluko sibonakala kakhulu emaqinimini aphezulu. Emva kokubaleka ngokuphambene kusuku lwesikhombisa, iziqhamo ze-iron zilahlela izindlovu zabo ngaproximately amahora angu-30 iphesenti ngaphandle kukaKobalt. Abasebenzi basebenziso bazi lokhu kahle kusenzo. Nakuba kunjalo, abaningi bahlala nezinqamlezelo ze-iron kumsebenzi lapho umthembiso uphawula kakhulu. Noma kunjalo kudingeka zishintshelwe kangcono, izinto zokwakha zizicost ngaphansi kuka-40 ukuya ku-45 iphesenti kunazo ezinye izinkomba ze-cobalt. Ngakho ke kumasekelo amancane noma kumthembiso ongcongweneyo, i-iron isohlwayele indlela yokukhetha nakuba inemiphumela yalo.

Izici ezihlukene eziphathelene :

METRIC	Izinhlelo Eziqashelwe Ku-Cobalt	Izinhlelo Eziqashelwe Ku-Iron
Ukugcina kwezindlovu (%)	85-88	72-75
Isilinganiso sokulahleka kwezinqamlezelo (%)	<5	7-9
I-indeks yokwakha kweproduction	145	100
Ispeed Esidingiwe Yokuqonda	2200 RPM	1800 RPM

Izixoko Ezisha Kukudala Kwematriki Yemetals Kuzindlela Zokugayaza

Ukuvutha kwezimali zokugcina kanye nezakhiwo zokudibanisa eziphathelene

Iindlela ezintsha zokugcina zibandisa iingcinga ezingenakho njenge-chromium kanye ne-tungsten (ngoko kungama-0.5 ukuya kuma-2%) kumixholo engqonge ye-iron-cobalt-copper. Le miqakaba engaphezulu iyafinyelela kuye kuma-98% wodidi lwangaphakade xa igcinezwa phakathi kwe-750 kuya kwe-850 degrees Celsius. Lokhu kungaphezulu kakhulu kunalo 92-94% esiqhathanisa kumendini yezakhiwo ezidala ngokomdla, njengoko kuchazwe kwiimvango zezobuchwepheshe kwiimvula zezixhobo zokugcina ngonyaka odlulileyo. Ngokugcina okuqhelekileyo, sithola le miqakaba efana nendawo. Amalungu aphakathi anezinto ezibuthakathaka ebalulekileyo ngama-700-800 kusilinganiso sesilinganiso ukulawula ukulahlekwa. Ekugcineni, amalungu aphakathi aphila kakhulu ngezilinganiso zokulahlekwa phakathi kwe-15 kuya kwe-18 MPa iingcinga ezimbhalo. Lo kombhini zenza umkhiqizo wokugcina ube ngcono kakhulu kumasebenzi aphambene apho ubunzima kanye nokuphila kubaluleke.

Iintsonga ezingaphandle kwe-Cobalt: Ukuthuthukisa ubomi bendalo kanye nokunceda kwimali

Amathiko okhuni akhuthaza ushintsho kumongo, kanti manje amabhadi angu-38% e-Eropi aqala ukusebenzisa izinhlelo ze-Fe-Ni-Mn endaleni yezinto ezibalulekileyo. Lezi zinhlelo ezintsha zazihlanya izindlovu ngendlela efanayo no-cobalt, ngaphakathi kwe-85 kuya ku-89% yokugcina, kodwa futhi zethula imali, zibeka izindleko zokwakha phakathi kwe-$11 kuya ku-$15 ngakilogremu. Xa zivulwa ku-quartzite, lezi bhadi ezingenacocalt zilinda ngamandla njengazo zenzelwe, zingaba ngama-120 kuya ku-135 amatha lamanje kabusha ngaphambi kokuthi kudinga ukubuyiselwa. Okukhomba kakhulu kulolu guquko kukuthi ukwakha lezi bhadi kwenza ukuthi kube khona izimo eziphansi ngama-60% zezimoto ze-carbon dioxide ngenkathi yokusinda. Ngakho sikhola indlela engcono ekugcinweni kwesimo sezulu etholakala kakhulu kakhulu kuzo zonke izisekelo.

Ukwebela Ubuchwepheshe beBond kunye Nombhalo wezinto kwezisekelo Ezithile Zokugayaza

Ukudizaina kwegibhubhu leminyaka ihlala ikhankanya kakhulu ekufakeleni izikhombolo ngokuchanekileyo. Kusebenziswa yizinhleli eziqashelwa phakathi kwe-55 kuya ku-60 HRC ezinezinkinga zikowuthri nge-12-18% ukuze zilindele kahle ukuguquguquka kwesithamo. Kodwa, lapho kufakiwe ubuchwepheshe obugcwele, kudingeka into enobukhachazane - njengamaqashi asebenzisa Fe-W eziqashelwa phakathi kwe-65 kuya ku-68 HRC abaleki amaqhakaza angaphakathi kwe-800 kuya ku-950 digiri eseliseli. Kunezinto ezintsha futhi ezibizwa ngama-laser-clad hybrid segments apho ama-layer asebenzisa Fe-based ne-Cu-Sn afika ngokujulene. Lezi zingcindeza isiphiwo ngendlela engu-40% ngesikhathi esifushane kunamagibhubhu asemthethweni ngaphandle kokulahlekelwa kobungakanani bomadodana. Okutholakelela lapha kuyinkimbinkimbi kakhulu, njengoba abakhethi bezixhumanise benza amandla kakhulu kulezi zixhumanise ezahlukene ekunikezeni izixhumanise ezinezindlela ezihle kakhulu empendulo yazo zonke iziseko zemfundo.

Imibuzo Evame Ukubuzwa

Yini indima yesixhumanisi samagiba esimanyaweni egibhubheni?

Imatriksi yombutho wemetalu kumagolide we-diamond ibamba izikhumba zokugaya ekhona, iyala ukulahlwa ukuveza i-diamond ezintsha ngemuva kwezotshiwo, kanti na ikusiza ekukhishweni kwesithamo esakazwa ngokuphindezela, ihlinzekela iqiniso lezindlela zomgodi ngokuphindaphinda.

Kungani isistemu se-metal yangahliwe isetshenziswa kumagolide we-diamond?

Izisitemu ze-metal ehlukene, njenge-yacobalt, ye-iron, ne-bronze, zisetshenziswa kumagolide we-diamond ukuze ziyalo umsebenzi womgodi ngokwemiphumela yokuphinda, ukulindela kolahlwa, nokubamba kwe-diamond, ngokulinganisa ngekusebenzisa nokuthi yiziphi izinto okuphinywa kuzo.

Ziziphi i-additives ezinzima ezisetshenziswa kumagolide we-diamond?

Izidingo ezinzima njenge-tungsten kanye ne-tungsten carbide zisetshenziswa ukuhlanjulula kunye nokulindela kokugaya, ngelikasethandaba izidingo ze-nickel kanye ne-silver zisetshenziswa ukuhlanjulula kunye nokukhisha kwezithamo kumagolide we-diamond.