Ngolunye usuku, bendincokola nomhlobo wam osebenza kurhwebo lwamazwe ngamazwe, kwaye wayexhalabile nge-odolo yokuthumela ngaphandle ye-brown fused alumina micro-powder: “Umthengi ucela i-F36 grit ngokwemigangatho yaseMelika, kodwa umgangatho wefektri yethu uchaza ‘umgubo ophakathi nocolekileyo.’ Ngaba ezi zimbini ziyafana? Ungakanani umahluko owamkelekileyo?” Lo mbuzo ugxininise ukudideka okuqhelekileyo kushishino – imigangatho yei-alumina emdaka exutyiweyo I-micro-powder ngokwenene yahlukile kakhulu kwiimarike zasekhaya nezamazwe ngamazwe. Ndisebenze kweli shishini kangangeminyaka engaphezu kweshumi, ukusuka kwingcali ukuya kumphathi womgangatho, kwaye ndiphathe iinqwaba zamaxwebhu aqhelekileyo phantse isiqingatha sobude bam. Namhlanje, makhe sixoxe ngezinto ezithethwa yile migangatho yasekhaya neyamazwe ngamazwe kunye nendlela ekufuneka isetyenziswe ngayo ekusebenzeni.
I. Imigangatho Yasekhaya: Utshintsho oluvela “kwiNqanaba Elikhulu” ukuya “kwiNgcali Ecociweyo”
Inkqubo yasekhaya eqhelekileyo ye-brown fused alumina micro-powder iye yatshintsha kakhulu ngokuhamba kwexesha. Kwiminyaka yokuqala, yayibanzi kakhulu.
1. I-National Standard GB/T 2478: Umlinganiselo Omdala
I-GB/T 2478-2021 yangoku ethi “Ordinary Abrasives – Brown Fused Alumina” ithathwa njengowona mgangatho usisiseko wasekhaya. Ilawula ikakhulu “imvelaphi” ye-brown fused alumina – ukwakheka kwayo ngamakhemikhali kunye neempawu zomzimba. Umzekelo, icacisa ukuba umxholo we-Al₂O₃ akufuneki ube ngaphantsi kwe-94.5%, i-Na₂O akufuneki ibe ngaphezulu kwe-0.45%, kwaye kukho imida ecacileyo kumxholo wezinto ezinomtsalane. Nangona kunjalo, ingxaki kukuba lo mgangatho ubanzi kakhulu malunga necandelo “le-micro-powder”. Yahlula ubungakanani bamasuntswana kwiindidi ezine eziphambili: “ingqolowa ecolekileyo,” “ingqolowa ephakathi,” “ingqolowa entle,” kunye “nomgubo omncinci,” ichaza nje umgubo omncinci njengo “ubungakanani bamasuntswana obucolekileyo kune-240 mesh.” Kodwa kwimarike yokwenyani, i-F240 (malunga ne-62 microns) nangaphezulu zithathwa njengezinto ezirhabaxa, ngelixa ii-micro-powders zokwenyani ziqala kwi-F280 (malunga ne-53 microns) ukuya ezantsi, ukuya kwi-F1200 (malunga ne-12 microns) okanye nangakumbi. Ke ngoko, abantu abangaphakathi kushishino ngokubanzi bayaqonda ukuba umgangatho wesizwe ubeka "isiseko," kwaye imigangatho eneenkcukacha ngakumbi iyafuneka kwimveliso ecociweyo.
2. Imigangatho yoShishino: Ngayinye ineNdlela yayo
Ngenxa yokuba umgangatho wesizwe ungenazo iinkcukacha ezaneleyo, amashishini ahlukeneyo aphuhlise imigangatho yawo. Umgangatho weshishini loomatshini (JB/T) uchaza iimfuno ezineenkcukacha ezininziumgubo omncinci we-alumina oxutywe ngombala omdakaisetyenziswa kwi-abrasives. Umzekelo, uthotho lwe-JB/T 7984 lwahlula i-micropowder ibe ziiklasi ezingaphezu kweshumi ukusuka kwi-F230 ukuya kwi-F1200, apho iklasi nganye ichaza uluhlu lokusasazwa kobukhulu be-particle. Umzekelo, i-F400 ifuna ukuba ii-particles eziqinileyo zingadluli kwi-42.0 micrometers, ii-particles eziphambili zixinene phakathi kwe-17.0-25.0 micrometers, kwaye kukwakho nomda ophezulu wee-particles ezincinci. Lo mgangatho ngowona usetyenziswa kakhulu kushishino lwe-abrasive.
Umgangatho weshishini lesinyithi (i-YB/T) ugxile kakhulu kwi-brown fused alumina micropowder esetyenziswa kwizinto ezichasene ne-refractory. Awugxininisi kumanani athile obungakanani bezinto, kodwa ugxininisa izalathisi ezifana "nobuninzi" kunye "nokulahleka kokutsha," ezichaphazela kakhulu ukusebenza kwezinto ezichasene ne-refractory ngexesha lokwakha. Abavelisi bee-castable ezichasene ne-refractory ngokubanzi banamathela kulo mgangatho.
Umgangatho weshishini lezinto zokwakha (JC/T) uneemfuno ezikhethekileyo zepowder ye-alumina emdaka exutywe ne-brown esetyenziswa kwi-ceramic glazes. Umzekelo, ubumhlophe kunye nomxholo wokungcola kulawulwa ngokungqongqo, kuba ukungcola okugqithisileyo kunokuchaphazela umbala we-glaze. “Ifektri yethu ibonelela ngamashishini amathathu ngaxeshanye: ii-abrasives, ii-refractories, kunye nee-ceramics,” umphathi wemveliso wakhalaza kum, “Kufuneka sibe neeseti ezintathu zezixhobo zokuvavanya kwindawo yokusebenzela, silandela imigangatho emithathu eyahlukeneyo. Nangona yonke iyi-brown fused alumina micropowder, ingqwalasela yahlukile ngokwenene.”
3. Imigangatho yeShishini: "Incwadi yeMisebenzi" yokwenyani
Eyona nto ikhokela imveliso ngokuqhelekileyo ngumgangatho weshishini. Imigangatho yesizwe neyeshishini yinqanaba lokupasa le-60%, ngelixa imigangatho yeshishini "yincwadi yokusebenza" yokufikelela kwi-90%. Ndityelele umenzi we-micropowder ephezulu, kwaye imigangatho yeshishini labo yayingqongqo kakhulu kunemigangatho yesizwe. Umzekelo, umgangatho wesizwe we-F800 micropowder ufuna kuphela "umlinganiselo weenxalenye eziphambili ungabi ngaphantsi kwe-45%," ngelixa umgangatho weshishini labo ufuna "ungabi ngaphantsi kwe-55%," kwaye i-curve yokusasazwa kobungakanani beenxalenye kufuneka ibe lukhuni ukuqinisekisa iinxalenye ezifanayo. Bakwafake isalathisi "sokuqiniswa kobume beenxalenye" esingafakwanga kumgangatho wesizwe, esifuna ukuba iinxalenye eziqhekekileyo nezimile okwenaliti zingadluli umlinganiselo othile.
II. Imigangatho Yangaphandle: Imithetho Eyahlukileyo Yomdlalo
Xa usebenzisana nabathengi bamanye amazwe, uya kufumanisa ukuba “imithetho yabo yomdlalo” yahlukile kakhulu.
1. I-ISO yoMgangatho weHlabathi: Isikhokelo esiBanzi sokuFuna iSiseko esiVumelwano ngelixa kuhlonitshwa umahluko
Uthotho lwe-ISO 8486 luyimigangatho eyaziwayo kwihlabathi liphela ngobukhulu be-abrasive particles. Eyona nto iphambili luyilo lwenkqubo epheleleyo "yobukhulu be-F grit", ukusuka kwi-F4 (malunga ne-4.75mm) ukuya kwi-F1200 (malunga ne-12 micrometers), egubungela lonke uluhlu lobukhulu be-abrasive particles.Umgangatho we-ISO igxininisa ngokukodwa ekuchazweni kweenkcukacha-manani "zokusasazwa kobungakanani bezinto ezincinci." Ayijongi nje kuphela ezona nxalenye zinkulu okanye ubungakanani bezinto ezincinci ezisisiseko, kodwa igxininisa ukuba lonke igophe lokusasazwa kufuneka lihlangabezane neemfuno. Oku kufuna izixhobo zovavanyo eziphambili, ngokuqhelekileyo i-laser particle size analyzer; iindlela zemveli zokusila azisanele. "Xa saqala ukwenza uvavanyo ngokomgangatho we-ISO, safumanisa ukuba iimveliso ezazithathwa 'njengezifanelekileyo' ngaphambili zazinokusasazwa kobukhulu bezinto ezincinci ngokubanzi ngokomgangatho omtsha, nto leyo eyenza ukuba zingafaneleki," ukhumbula umlawuli welebhu. "Kamva, salungisa inkqubo yokubeka amanqaku ukuze ihlangabezane nemigangatho ngokwenene. Nangona inkqubo yayibuhlungu, ukukhuphisana kwemveliso kwimarike yamazwe ngamazwe kwaphucuka."
2. Imigangatho yaseMelika i-ANSI/FEPA: Ichanekile ukuya kwinqanaba lokuba yinto efunekayo
Imigangatho yaseMelika, ingakumbi imigangatho ye-ANSI B74.12 kunye ne-FEPA, inefuthe elikhulu kwicandelo lee-micro-powders. Ukuba umgangatho we-ISO "ngumgaqo-nkqubo," umgangatho waseMelika "ujolise kwiinkcukacha". Ukuthatha "ubungakanani be-P grit" ye-FEPA (ehambelana nobukhulu be-F grit ye-ISO) njengomzekelo, ineemfuno zepesenti ezichanekileyo zokusasazwa kobungakanani be-particle yobukhulu be-grit nganye, echanekileyo kwiindawo ezininzi zedesimali. Umzekelo, kwi-P240 (malunga ne-58.5 micrometers), icacisa ukuba i-D3 (kwi-3% cumulative distribution) akufuneki idlule kwi-69.8 micrometers, i-D50 (ububanzi obuphakathi) kufuneka ibe phakathi kwe-51.7-56.3 micrometers, kwaye i-D94 akufuneki idlule kwi-42.0 micrometers. Eli nqanaba lokuchaneka libeka iimfuno eziphezulu kakhulu kulawulo lwenkqubo yemveliso.
Okubaluleke ngakumbi kukuba umgangatho waseMelika unemida engqongqo kakhulu "yokunyamezelana kwee-particles ezirhabaxa." Umzekelo, kwii-micro-powders ezinobukhulu obufanayo be-F400, umda ophezulu wee-particles ezirhabaxa ezivunyelwe ngumgangatho waseMelika uphantsi kakhulu kunowomgangatho waseTshayina. "Abathengi baseYurophu naseMelika baxhalabile kakhulu ngale nto," utshilo umphathi wezorhwebo lwangaphandle. "Bayoyika ukuba ii-particles ezirhabaxa ziya kukrwela umphezulu we-workpiece. Kwiimveliso esizithumela eMelika, inkqubo yokubeka amanqaku kufuneka iphindwe kabini ukuqinisekisa ukuba ezo particles 'zibalekileyo' zihluziwe."
3. Imigangatho yaseYurophu neyaseJapan: Ugxininiso olwahlukileyo
Ukongeza ekwamkeleni imigangatho ye-ISO, abavelisi abaninzi baseJamani abakhulu nabo banemigangatho yaboimigangatho yangaphakathi(ezifana neemfuno ezifunyenwe kwimigangatho ye-DIN), ezidla ngokuba ngqongqo kunemigangatho yamazwe ngamazwe, ingakumbi malunga nokuhambelana kokwakheka kweekhemikhali kunye nokuzinza kwebhetshi. Umgangatho waseJapan (JIS R 6001) unomdla kakhulu; ugxininisa kakhulu "kwintsebenzo esebenzayo." Ngaphandle kwezalathisi zendalo nezekhemikhali eziqhelekileyo, ukwafuna "uvavanyo lwamandla okugaya," kusetyenziswa indlela eqhelekileyo yokugaya ngokwenene ukujonga ukusebenza kakuhle kokugaya kunye nomgangatho womphezulu womsebenzi. Oku kubonisa indlela "ejolise kwiziphumo" zeenkampani zaseJapan.
Ⅲ. Uthelekiso oluQhelekileyo: Iintlobo ezahlukeneyo zomahluko ophambili
“Into endibangela intloko ebuhlungu kakhulu asikuko imigangatho ngokwayo,” uvumile umlawuli womgangatho, “kodwa ngabathengi abasebenzisa imigangatho eyahlukeneyo yokuhlolwa. Kwinyanga ephelileyo, kwiodolo enye, umthengi wasekhaya uhlolwe ngokomgangatho wesizwe, kwaye waphumelela; umthengi waseKorea uhlolwe ngokomgangatho we-KS (ofana ne-JIS), kwaye naye waphumelela; kodwa umthengi waseJamani uhlolwe ngokomgangatho we-FEPA, kwaye izalathisi ezimbini zazinexabiso elibalulekileyo, nto leyo ekhokelele kwimpikiswano ende.”
Ⅳ. "Ubulumko obuqhelekileyo" ekusetyenzisweni okusebenzayo
Enyanisweni, ukunamathela ngokuqinileyo kwiziqendu ezisemgangathweni akusoloko kusebenza; udinga "ubulumko obuqhelekileyo." Okokuqala, kufuneka uqonde "umoya" womgangatho. Wonke umgangatho unengqiqo yawo. Umzekelo, kutheni imigangatho yaseMelika ingqongqo kangaka kumasuntswana arhabaxa? Ngenxa yokuba ishishini lokuvelisa ngokuchanekileyo laseMelika liphuhliswe kakhulu, kwaye bayoyika ukukrwela iindawo ezichanekileyo. Ukuqonda oku, uyazi ukuba iimveliso ezithunyelwa eMelika kufuneka zibe nomzamo owaneleyo kwinkqubo yokubeka amanqaku.
Okwesibini, funda “ukuguqula phakathi kwemigangatho.” Iingcali ezinamava zonke zine “itheyibhile yokubala ngengqondo”: malunga nokuba inombolo ye-F ihambelana ne-medium yasekhaya kunye ne-fine powders, kunye nomahluko phakathi kochungechunge lwe-P lwaseMelika kunye nochungechunge lwe-ISO F. Nangona lungachanekanga ngokupheleleyo, luluncedo kakhulu kunxibelelwano lokuqala. “Ngoku siqeqesha isebe lethu lokuthengisa, kwaye isifundo sokuqala yitheyibhile yokuthelekisa eqhelekileyo,” utshilo umphathi woqeqesho, “ukunciphisa ukulahleka kwee-odolo ngenxa yokungaqondani kakuhle kwemigangatho.”
Okona kubaluleke kakhulu, misela "umgangatho oyintloko" wakho. Inkampani ephumeleleyo, emva kokuqonda kakuhle imigangatho yasekhaya neyamazwe ngamazwe, iya kuphuhlisa iseti yemigangatho yolawulo lwangaphakathi ephezulu kuneemfuno zabathengi. "Imigangatho yethu yolawulo lwangaphakathi ingqongqo nge-10-20% kunemigangatho yabathengi engqongqo," utshilo umphathi omkhulu wefektri. "Ngale ndlela, nokuba abathengi bethu basebenzisa yiphi imigangatho, singayiphatha ngokulula. Nangona ibiza ngaphezulu kancinci, yakha udumo lomgangatho, nto leyo exabisekileyo ekuhambeni kwexesha."