Ukufunda kwezibhakabhaka zokupholisa: Kungani ubukhulu bakwe-diamond buyenza ngokwanele kwezinkundla eziphakeme

Ubukhulu bakwe-diamond bengama-10 Mohs ngaphandle kwebukhulu bakwezinkundla bengama-4,000–7,000 psi kwe-compressive strength

Kodwa kufuna ukuchitha amaphansi amagcwele, izinkokhelo zezindiza ziyabhekana ngokuphelele ngokuthi zihlakaze njani kumiphumela yezinto. Lezi izindiza zihlakaze kumgqa wokugcina we-Mohs nge-10. Lokhu kuyakubeka ngaphezulu kwezimbili ngokuphakeme kuka-corundum okuphakeme ngokugcina we-9, futhi kubhekiswe kuzo zonke izinto ezinamandla okukhula kakhulu kumaconcrete, ngoba umaconcrete wasekhaya uyaphakeme ngokugcina kwe-4,000 ku-7,000 psi. Okudala kukho ukuthi lezi izindiza zihlakaze zibekwa ngokuphakeme kakhulu kunezinye izinto, futhi zichitha umaconcrete ngokwenza izihlakazi ezincinci kumphumela wakhe wokugcina ngaphandle kokuthi zihlakaze. Ngokusemaphakathini, i-aluminum oxide eyiphelele ngokugcina we-9 ayikwazi ukudlula ngokuphelele xa isebenza ngamaphansi amadense kakhulu. Abaprofesiyo bafuna ukushintsha lezi zinkokhelo ngokuphelele. Isidingo esikhulu elinesindiza zezindiza kukuthi kuyakhuluma ngokuphelele ngokugcina. Lokhu kuyakubeka ukuthi akukho ukungena kwemvula kusuku sokuchitha ngokukhula kakhulu, futhi akukho uphawu lokuthi isilayi sishwele noma kuthi izihlakazi zizohlanzwa kusuka kumaphansi.

Kungani ukuthi i-aluminium oxide ne-silicon carbide zihlukana ngezinyathelo ezingaphansi, izinyathelo ezingaphezulu kwezindawo zokugcina

Amakhwama amahle angakwazi ukusebenza kahle nge-concrete eyodwa ngoku njengoba kukho umphumela wokungafani phakathi kwezinto. Izinkampani zezindaba zokusebenzisa izinkampani zokukhupha ezisemthethweni, njenge-aluminium oxide ne-silicon carbide, ziyaph rely kuzo ukuthi zihlale zihlukanise ukuze zibonise izinyathelo zokukhupha eziphusha, kodwa le ndlela ayisebenzi kahle xa kusebenziswa emashefu anganakwazi ukufinyelela kona. Kuthi ukuthi? Lezi zinto zihlala zihlukane futhi zibeka isikhumba esikhulu, zithutha izikhathi eziningi futhi ziburna ishefu sesikhwama kusukela. Le ndlela yenzeka kahle kune-concrete eyodwa enesilica ephakeme ekhanda kwe-Mohs 7 noma kude kakhulu. Ukubona kubonisa ukuthi izinkampani zesi-silicon carbide zihlala zihlukane kahle kabili kune-diamond xa zisebenzisa emixwebeni yeqhuartz. Abasebenzi bahlala nabafunda obuhlungu obuhle kwezindawo zokuhluka, izikhathi ezide kwezindlela, nezindawo ezihlala azizange zifinyelele i-standards zokugcina okufunekayo yezindawo zokusebenza zonke, ezinikezela ubukhulu nokubona.

Izindlela Zokuphumeza: Ukuhambisana, Ubukhulu Bekugcina, Nokufakwa Kwemithombo Yomfanekiso

isikhathi Sekugcina esingaphansi kwe-37%: Iziphakamiso zasekhaya zesi-2023 sika-ICRI (izipad zokugcina zezindiza ngokulingana nezilwane zokugcina zezinkokhelo)

Ngokulandela iziphakamiso ezazisweni yalezi-2023 yaseNkambo Yezinkokhelo Zokubuyisela Emasisweni, izipad zokugcina zezindiza zihlukile kwezinye izipad zezinkokhelo zokugcina ngokulingana ngokuhambisana kwe-37%. Lokhu kungani? Izindiza zihamba kahle ekugcineni futhi zingasibeka kahle emasweni amakhulu noma zihlukile kahle ngokulingana ngokungafiki kwezinye izindlela. Izinto ezingaphansi njengokwesikholo sezinkokhelo zihlukile kahle emasweni amakhulu okwesikholo, lokho kusho ukuthi kufanele kusishanyelwe izipad ngokuphelele futhi kufanele kusitshutshwe isikhathi sokusebenza ngokuphelele. Iziphakamiso zasekhaya zibonisa ukuthi abasebenzi bokusebenza emasweni amakhulu ayisigaba somphakathi bangagcina umsindo wasekhaya wawo wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya wawo wasekhaya waw......

Ukuthuthukiswa kwezinye zokugcina: ukongeza kwemicro-hardness ngama-22% (ASTM C805) nokuphatha kwezinye zokugcina

Ukusebenzisa ama-diamond pads kungakhuphula ubulukhuni obuncane bendawo cishe ngama-22% njengoba kuhlolwe ngaphansi kwamazinga e-ASTM C805, okuholela ekuqedeni okuqinile futhi okuhlala isikhathi eside kakhulu uma kuqhathaniswa nalabo abenziwe ngemikhiqizo esekelwe ku-oxide. Indlela lezi zinsimbi ezisika ngayo inembile ngempela, zakha ngisho nemidwebo yokugqwala esusa leyo nkungu ecasulayo esivame ukuyibona lapho sisebenzisa izindlela ezindala zokuchoboza. Lolu hlobo lokugqoka lubonisa ukukhanya ngendlela eqhubekayo, into ebaluleke kakhulu ezindaweni ezinjengezitolo eziphambili, iminyuziyamu yezobuciko nezinye izakhiwo eziphambili zezentengiselwano lapho ukubukeka kunendaba khona. Ngokwemininingwane evela e-Concrete Polishing Association of America eyanyatheliswa ngonyaka odlule, izindawo eziphathwe ngale ndlela zinamathuba angaba ngu-40% amancane okuba zibe namabala endleleni. Futhi kunomunye umehluko omkhulu okufanele uqaphele: kuyilapho i-silicon carbide ivame ukudala imifantu emincane ebusweni, ukucwebezelisa idayimane empeleni kwenza ukhonkolo uqine, kukhuphule amandla okucindezela ngaphezu kwama-7000 psi. Lolo hlobo lokuqina luhlangabezana nazo zonke izinhlobo zezidingo ezinzima ezidingekayo ezindaweni ezimatasa njengezikhumulo zezindiza, izimpahla, nezindawo zezimboni lapho ukhonkolo kudingeka ume khona ukuze usetshenziswe kanzima njalo.

Umnotho Wempilo Yokusebenza Nokuphepha Kwama-Pad Ahlanganiswe Ngedayimane

58 Ukusabalala okuphezulu nge-pad ngayinye kanye nezindleko eziphansi eziphelele zobunikazi (Umbiko Wokubhekisela we-NTCA 2024)

Amaphakethe aboshwe ngedayimane ahlinzeka ngezomnotho wokuguqula umjikelezo wempilo, ne-NTCA Benchmark Report 2024 eqinisekisa ukumbozwa okungama-58 ngaphezulu kwepadi ngalinye uma kuqhathaniswa nezinye izindlela zendabuko. Lokhu kubangelwa ngokuqondile ukumelana nokuqedwa okuvelele kwedayimane, okwenza kube nokugqokwa okuqhubekayo phakathi nesikhathi sokusebenza eside futhi kunciphise kakhulu ukushintshwa.

Izihlathi zesidimane ziyathatha izinkinga eziningi kusukela kusukela kunazo ezihlathi zokugqamisa ngokwezinkampani, okusho ukuthi ziyathatha izinkinga ezimbili kuze nezintathu. Kodwa xa sibheka isithembiso esikhulu, lezi zihlathi zizokhula ngokuphelele futhi zizokwakha izinkinga zeprojekthi ngokujwayelekile phakathi kwe-40% ne-60%. Ukuthi azikhozwa ngokuphindaphindi kahle kuzoba nokuthatha izinkinga ezincinci ekuthiwa kwezihlathi futhi kuzoba nokuthinta okuncinci kwezinhlelo zokusebenza emkhumbini. Ubunzima bokusebenza ngokuphelele bokubona kwezihlathi zokugqamisa ngokwezinkampani kuyisidingo esikhulu. Lezi zihlathi zizokhula ngokuphelele futhi ngokujwayelekile, okusho ukuthi akukho zikhohliso ezingaphansi kwezinye izinqumo. Ngaphezu kwalokho, indlela yabo yokugqamisa amasonto ayenza amapatereni athile ayo abe nemiphumela emithile okuzoba nokuthinteka kwemithi yezindawo. Lokhu kubalulekile kakhulu xa kusebenzwa kumathilayi amakhulu apho kufuneka kwenziwe ukugqamisa okuphelele kwezinye izindawo. Abasebenzi bazobonwa ngokuphelele ngezindlela ezingaphansi kwezindlela ezingavumelekile.