Izibalo Ezinhloko Zezimali Zokuphendula Ezilandelwayo Ngokudlulula Kwintuthuko

Ukugcina ulwazi lwe-carbon footprint kusihlakuvelo sohlwayelwa sablade yesandla esiphindwe ngokuphelele, kusukela ekutholeni izindlela zokuqala kuze kube kisaphuleka, kubaluleke kakhulu uma sifuna ukuncipha izimo eziyakhiwa khona ngendlela efanelekileyo. Izinombolo zikushela indlela okuqashelwa ngayo i-CO₂ kuzinye izikhathi: zingacaphunga imini yokudonsa yezinto ezijwayelekile njenge-tungsten carbide ne-diamonds esenzululwazi, emva koko imicimbi yesidlalo njenge-sintering kanye nokugaya, futhi ekugcineni konke okwenzekayo uma iziblade ziyafika kumasese kanye noma zizophulwa kanjani. Ukubuka ngokucophelela lezi zinombolo kusho into ethintekayo – ngaphezu kwesihlanu semigomo yonke ivela kutsiwo lwe-sintering kuphela. Lokhu kuyaqonda ngoba lethu izinkukho eziningi kumele ziqashiwe kangakanani. Uma izithalashi ziqhubeka nokugcina ulwazi lwazo malayezini akhona aqashelwa kulezikhathi ezinehlangothi, zingabona izindawo apho kungaconywa ukuguquka. Izingxenye eziningi zisebenzisa i-Life Cycle Assessments (LCAs) ukuqinisekisa ukuthi imilingo yawo ihlanganiswe phakade. Ngaphandle kokusiza abadli wezithalashi ukuba bafunde, lokhu kufanako ukugcina ulwazi kuthatha indlela eyancipha njengamadoda afuna ukubonakala kabanzi ngokuthi kudinga ukubonakala kabanzi mayelana nezimo ze-Scopе 3. Idatha ye-life world ikushela ukuthi lezo nzuzo zazinzima phakathi kwe-18% kuye kwe-25% ukuncipha kwegama elilodwa kodwa kuyaba nenhlalo enempilo kanye nokusebenza kweziblade.

Ukulinganisa KweNkinga Yomphakathi (LCA) kanye Ne-ISO 14040/14044 Ukulindela Kwezimali Zokukhala Kwamandla

Ukulinganisa KweNkinga Yomphakathi kusinika indlela evela khona ukulinganisa iziphumo ezikwenzekayo kwemvelo, ukuqinisekisa izilinganiso ezivimbela ngokukhala kwamandla ekwakhiweni kwesimeni sokugaya isihlaha.

Izifazwe ZeLCA Ezisetshenziswayo Kwizihlaha Zokugaya Isihlaha: Kusukela Ekunyoleni Izindlela Ezivela Khona Kuze kube yini Yokuphela

I-LCA ilinganisa izihlaha zokugaya isihlaha ngamaqondlo amane:

1. Ukunyola Izinto Ezivela Khona : Ukuhlolonwa kweziphomo ezikhiwe ngenyolovu, ikobhamu, nezidlalo ezinzima
2. Ukugcina : Ukubala umsebenzi wokudla kwezenzo kanye nokuthuthwa komoya kwi-grinding
3. Ifazwe Lokusetshenziswa : Ukulinganisa ubungakanani bomsebenzi wokusebenza ngexaki kumsebenzi wokugaya
4. Ifazwe Lapho Kuphela : Ukuhlaziywa kwezindleko zokusula nokuthuthukisa kwezimali ezenziwa ngomkhawulo wamathambo

Lendlela yokufaka kuleli qhaza ikhombisa ukuthi ukugcina kuyaphathelwa yizinkinga ezinesithupha sezingozi - indawo ebalulekile yokuthuthuka (Ibhali elixhaswayo leMaterials Efficiency Journal 2023). Ngokulandela izimo zonke, abayenzelula bafumana ubonakaliso bezindawo ezinezindleko eziningi baze bathintele izenzo.

Ukuthini kwe-ISO 14040/14044 Ukulungiselela Kuchaza Ubucophele Nokwemthetho Kwizilingo Zokubamba Icarbon

Isimo se-ISO 14040 sibala indlela okumele kuyenzelwe ngayo iingxaki zokulinganisa umgama wokuphila, ngelixa i-ISO 14044 ibhekene namaqhelekiso amathuba abalulekileyo apho akwenza izixhobo zokulinganisa ukubamba kwintando kuthembekile kwaye ihlanganise phakathi kwezinye izigaba. Lezi ziqalelo zezifundazwe zikhusela iindawo zokwenza izilinganiso ezingavumelekanga ngokuba zidinga ukulungiswa kwegunya elipheleleyo, ugcino olucacileyo lwemeko ye-3 yombiko, nezindlela ezihlengahlengisweyo yokulinganisa imbono yobomi bomhlaba. Iinkampani ezilandelayo ezimbini ziziqalelo zinezixhobo ezinobuhleli ngaphezu kwezigaba eseqhelwe kuyo zazenzelwa ngomdla weGlobal Sustainability Review ngoBara eludlulileyo. Idatha yabo ibonisa ulwandlelo olukhulu kumthembeka ngaproximately 28% xa kulinganiswa neezigaba ezingafanelekanga, okwenza kube lula ukulinganisa njani kube lula ukusebenzisa intando kwaye into efana nje ukusetyenziswa kwamagugu kuzo zonke izikhathi zalo mgama walo.

Imeko ye-1, 2, kunye 3: Izilinganiso Ezibalulekileyo Zokubamba Kwintando Ngxesha

Isikhala 1: Ukwanda Okudla Ngokwesibonelo Kusika, Ukugaya, Nokufaka Amakhemikhali

Umdlalo wokwanda okudla kungumthombo wokugcina okuthiwa yizinhlelo zokwenza izinto ekuhlaleni. Uma sisebenzisa lezi zikhala zokunqoba ukuxhumana kwezindilinga, kuzocweba igesi yesayensi ethile eyayisivele futhi ibhale indiphuromithile yenkohlwe emoyeni. Inkathi yokugaya iyakha izinto ezincane zonke eziphazanyayo, kanti lezi zinhlelo zidinga izinhlelo zokulima okuphazanyayo eziphazanyayo eziphazanyayo. Kunezinye izinto ezifakwayo - izinhlelo ezifana nokufakwa kwegasi ngendlela (PVD) ziyakha izinkinga zokugaya okuyakhiwa kuzokhula kwezinkohlwe emoyeni. Izilimi eziningi manje zinezinhlelo zokulandela ngokuvamile ezizodwa kuzo zonke izinhlelo zazo. Zondla lonke lo data mayelana nezinkinga zokukhula kwezinkohlwe ukuze abaphathisi bakhone ukubona iziqendukezo zezokwenza ezingadinga ukulandela uma ziyashintsha ukuncipisa inkohlaka yomphakathi.

Isikhala 2: Ukusetshenziswa Kwamandla Wamagridi Nenkinga Yenkolo Yenkolo

Izindlelko ezigcwele zikwa kakhulu ekutholeni i-electricity yezinto ezithile njengezimboni ze-hydraulic, izimbinjini ze-CNC, nokugcina izibhamu zigcinwe ngisho kuqala. Uma sibuka ubukhulu be-energi ekudingekayo ukwakha igxila ngalinye, ekhlukweni kwamawatt amahora ngalunye, lokhu kusiza ekulinganiseleni izigaba ezahlukene. Izilonda ezisezindaweni ezadlulula izimali zikhethephosi zihamba ngaphezu kwesibili ngesikhathi esiphelele kakhulu kunazo ezisebenzisa imithombo ethintela. Ngoba kube khona lezi zilingano zezindlelko, okmanyana abakhuselekile bakhokhelwa ekuphathiseni kwabo kungcono. Ukuze kube lula njengokushintsheza i-bulbs ye-LED futhi ufake izinqumo ezilandelayo isimo se-energi ngemizuzwana yokusha kungasebenze kakhulu ekukhuliseni izindlelko eziyisikhathi sesibili.

Isikhala 3: Iziphimba Ezinamandla Upstream — I-Tungsten Carbide, I-Cobalt, ne-Diamond Supply Chains

Iingxaki ezininzi zokuphuma kuka-carbon zisuselwa kwimisebenzi yasentla, zibangela ngaphezulu kwezintathu nezilishumi ngaphakathi koko kuphumelelwa kumoya. Xa kufika kumzimba othile, ukuthinta kuka-tungsten kususela ngama-12 kilogram kayi CO2 ekulinganayo nganye ngalinye ikilogram ephindwe. Ukunciphisa kuka-cobalt kunenyaniso eyodwa ngoba kudinga imisebenzi engakanani ukuze kwenzeke. Ukwenza amadhamanti akhokelelwe akhethekileyo akuyona into ethembekileyo. Kudinga ngenabhoxo ukuya kuma-100 ukwanda i-hour ukwenza karati enye ngokuchazwe yi-pressure kunye netemperetsha esiyizithunywa ngazo. Kunye nokuba singenamaxesha okuzikhumbula izindleko zokuthutha apho zongezela ngaphezulu koko kuphumelelwa kuka-carbon. Ukuhlola le ngxaki ngokupheleleyo kwi-supply chain, iinkampani kufuneka ziphuculane ngempeleni nezathengiselwe. Ukufumana indlela yokuthenga izinto ezingenanto encinci kumoya kufuneka kube yinto eqhelekileyo kubo bonke abathandabuzayo ukunciphisa konke kuphumelelwa kumoya.

Izikhumbuzo Zeqiniso LeCarbon Ngesimo Sezinto: I-Tungsten Carbide, I-Cobalt, neDiamond Yokwenza

Iqiniso LeCarbon Ezigcineniwe nguye kg ye-Tungsten Carbide kunye ne-Cobalt ekwakhiweni kweBlade Matrix

I-matriks eblade iphakanyiswa ngokuvamile ngu-tungsten carbide kanye ne-cobalt, nokho lezinto zibeka izinkcazelo ezahlukene kakhulu emhlabeni. Ukwenza i-tungsten carbide kusuke kuqhipha phakathi kwe-8 kuya ku-12 kilogram yeco₂ ekulingana naye ngalokilogram ezenziwa, ngisho lapha inkathi yokwenza kudinga imodi enkulu. I-cobalt iyisidingo esingaphezu kwalokho uma kufaneleke ukuthi kubukeke umbiko wentsimbi, ubukhulu obunye bawo kungaba phakathi kwe-15 kuya ku-20 kg CO₂e ngalokilogram. Lokhu kuyindlela engcono kakhulu njengoba kudingeka amathuba aphelele okuthola futhi ukucweba izingcindezi. Ngoba i-cobalt isebenza njengaphakathi kuka-3% ukuze kuya ku-20% kwizimatriks eziningi zeblade, ukutholwa kwezindlela zokusebenzisa okuncane kwalokho noma ukulondoloza okwenzelwa ngento eyodwa engenakho umthelela ongcono kumhlaba kungasekela ukuncipha kokuphakama kwezimo ngaphandle kokuthi kube khona ukuthula kweblade. Abazalisi abaningi sebeqala ukulandela izinto ezingaphezu kwezinye eziphakanyiswa ngamandla kodwa zenza ngendlela ebalulekile ngaphansi kwemfihlo yesimo sezulu.

Ukudinga Kwezimali Zesintering Njengeyona Mitholampofu Yenkomba Yembiko

Umsebenzi wokusinda kwe-High Pressure High Temperature (HPHT) uwakha kakhulu kunye nje kabini yesibini yazo zonke i-emissions ngexesha lokwakhiwa. Xa sijonga izinombolo, ukudala igram 1 kuphela kwesayensi ye-diamond grit kuthumela phakathi kwe-kilogram 4.2 ne-5.3 ye-CO2 ekulingana naleyo, kangangoko kuba kukho ntoni eyizisa imali enkulu ekugcineni i-electricity ngomsebenzi ngokuthi kuchazwe kwi-Journal of Cleaner Production ngo-2020. Oku kungcono kakhulu emaphandleni apho izimali eziphuma kwegolide zisemacaleni azifuna ukuphula ikhole, oku kungenjalo njalo kumaxesha amaninzi asemgangathweni aphelile. Ukuguqula ukusetyenziswa kweenjongo ezimbiyo zokwalulwa kwezimali ezifanelekayo kuzakukhusela le mihambo engcono ngaproximately 40%. Lokhu kuyakubeka ukunyusa kweenjongo ezingcono ezihlala ziyakufundisa into ebalulekile xa kufuneka intshabalalo yokwenza i-diamonds ibe yinto ethembekile.

Ukusimba Kwizilingo Zokwenza Ngendlela Eyingcono Ngokusebenzisa Iindlela Ezinemithetho Ebophephile

Abakhi kuyaphazanya izindlela zokusebenzisa amanzi ngokushesha nokusebenzisa izinto eziqukethe ngokudlulula. Lezi zindlela zihlinza izimo eziphazanyayo kanye nezimpawu zomphakathi wokwakha kwizinyo zodaka.

Ukuthuthukwa Kwemfihlo Yenkolo Kunye Nokunyuswa Kwemfihlo Yenkolo Kwiindlela Zamanje

Ukushintsha izindlini zokusinda eziphathelene ngezimali ngoziwe ngokudluliswa kwegogo kungahlawula ukusetshenziswa kwamandla phakathi kuka-30 kuya ku-50 iphesenti ngokwesicwangciso esiphubekayo eJournal of Cleaner Production ngo-2023. Manje amakhampini amakhulu ayafaka izikhala ze-solar ezigcineni kwabo futhi ayithenge izikhuthazo zokuthenga amandla afakwayo, okungethelani kulula izindlela zokuthenga amandla futhi kunciphisa ububi bokuphuma kwe-Scope 2. Ngokulandela ngokushesha ukusetshenziswa kwamandla, izinkampani zithola izinyathelo ezifuna amandla kangakanani, njengokugaya. Lokhu kumethula ukuthi kube yini okumele kuthuthukiswe futhi kumethula izimo ezintsha zokuthi izigaba zokwakha zisetshenzisa amandla mangakanani.

Izibuko Zeqiniso: Ukubuyisela Emuva Iblade Ezilahlekile Nokusebenzisa Fishe Imipowuli Yemetali

Inkonyo eyamandla yokudonsa futhi kwezimali ezibalulekile njenge-tungsten carbide ne-cobalt kusetyenziswa izindlela zokususwa kanye nezilavu zomagnethi. Uma izinkampani zibuyisela lezi ziphumo ezitholakele kumsebenzi ngendlela engaphandle kokukhokha izinto eziphuma emhlabathini, zizokwephula ukulwa kwe-carbon khona-kona. Ibhala likhona - kuphula okungenani okungama-8 kg we-CO2 ngalinye ilogramu yezinto ezadonsakanywa kunokunquma kwamanzi amasha emhlabathini. Isibonelo somphakathi sitholakele kuququzelelo ovela ekutholeni indlela yokusebenzisa phantsi lezi ziphumo, wabuye waphula kabusha umnyango wayo we-carbonway uphawu lwesihlanu ngenkathi isikhathi esifanayo imoto iyavela. Okuthandazekile kukuthi izixhobo zakhe zokugcina zasebenza kanjalo njengangenkulungwane, kusho ukuthi ukuzulazula akubaluleki ukuthi uzosebenza kakhulu noma kube lula emsebenzini.

Isikhombisi Sokuqala

Yini indlela yokulandela i-carbon footprints ngasemgangathweni ongaphaya kwe-diamond saw blade?

Ukulandela izinqamlezo ze-carbon zibaluleke kakhulu ekukhawazeni kakhulu kwezimali ezihlukene, kusukela ekunqumeni kwemithombo yokubala kuya ekususweni kwezinto. Kunciphisa indlela okufanele kuguquke kuyo, ngabe kube yisiproso esigcinwa kabaliswe sengcindezi esinamandla.

Kungani Ukuchazwa Kwesiqu Sokuqala (LCA) kunciphisa kumavali abalansi we-carbon?

I-LCA inikeza indlela eqiniswayo yokulinganisa iziphumo ezenziwa kumhlaba, ukuqinisekisa ukuthi idatha ibalulekile kuzinye zizindawo. Ibona izindawo ezineziphumo ezikhulu futhi ikusiza abakhi kumelana nokugcina izinyathelo ezingenziwa ukukhupha izimali.

Ziziphi i-Scopes 1, 2, ne-3 zezimali?

I-Scopes 1 zizimali ezidolobheneyo ezivelayo kumthethoselulo wokwakha, i-Scopes 2 zizimali ezingenalo kodwa zavela usebenzisa amanzi, futhi i-Scopes 3 zifaka izenzo ezikhulu ephakathi kwemithombo yokubala.

Kunjani ukuthi ukudibanisa kwezimali ezenziwa kumhlaba kusiza abakhi ukukhupha izinqamlezo ze-carbon?

Ngokushintsha kumthombo wokuphathwa kwamandla njengezepaneli zasolari namandla wokwenta umphumulo, abasebenzi bakhupha kakhulu ukusetshenziswa kwamandla, ngakho-ke bakhupha izimo zabo zeScope 2 ne-engagement yabo yonke yokuphazanyiswa komoya.

Kukhona kanjani imithetho esemnqaneni yokwakha ukuze kube lula ukulungisa izibalo zomoya?

Imithetho ethembekile iqukethe imisebenzi efanele amandla nemodeli engcwele yesilinganiso, njengokubuyisela izikhwama ezikhutshaziwe nezibalazana izimpumulo, okufihla izimo zokuphazanyiswa ngaphandle kokuchitha ubunzima noma ubuncane.