Intsimbi engenastainless ifika kwiifinishies ezininzi eziqhelekileyo.Kubalulekile ukwazi ukuba zeziphi ezi zigqibo ziqhelekileyo kwaye kutheni zibalulekile.Izinto ezintsha zamva nje kwitekhnoloji ye-abrasive inokunciphisa amanyathelo enkqubo ukuhambisa isiphelo esifunwayo, kubandakanywa neglosi efunwayo.
Insimbi engenasici inokuba nzima ukusebenzisana nayo, kodwa imveliso egqityiweyo inika enye yembonakalo engcono kwaye yenza wonke umsebenzi uxabiseke.Kuyavunywa ngokubanzi ukuba ukusebenzisa i-grit ecolekileyo ngokulandelelana kwesanti kunokususa iipatheni zokukrala kwangaphambili kunye nokuphucula ukugqitywa, kodwa kukho amanyathelo amaninzi ngokubanzi okufuneka uwaqaphele xa usebenzisa ulandelelwano oluninzi lwegrit ukufezekisa ukugqiba okufunwayo.
Intsimbi engenastainless ifika kwiifinishies ezininzi eziqhelekileyo.Kubalulekile ukwazi ukuba zeziphi ezi zigqibo ziqhelekileyo kwaye kutheni zibalulekile.Izinto ezintsha zamva nje kwitekhnoloji ye-abrasive inokunciphisa amanyathelo enkqubo ukuhambisa isiphelo esifunwayo, kubandakanywa neglosi efunwayo.
I-Specialty Steel Industry of North America (SSINA) ichaza imigangatho yoshishino kunye nalapho iimveliso zisebenzisa amanani ahlukeneyo okugqiba.
No. 1 yenziwe.Olu unyango oluphezulu lwenziwa ngokuqengqeleka (i-hot rolling) insimbi engenasici ethe yafudumeza ngaphambi kokuqengqeleka.Kufuneka ukugqiba okuncinci kakhulu, yingakho kuthathwa njengento enqabileyo.Iimveliso eziqhelekileyo ezinamabala anenombolo enye zizifudumezi zomoya, iibhokisi ze-annealing, i-boiler baffles, amacandelo ahlukeneyo eziko, kunye nee-turbines zegesi, ukukhankanya ezimbalwa.
INombolo ye-2B igqityiwe.Lo mgangatho oqaqambileyo oqengqelekayo ufana nesipili esinamafu kwaye awufuni manyathelo okugqiba.Iinxalenye ezine-2B ezigqityiweyo ziquka iipani zendalo yonke, izixhobo zeplanti yeekhemikhali, izixhobo zokusika, izixhobo zokusila amaphepha kunye nezixhobo zemibhobho.
Kukho kwakhona ukugqitywa kwe-2D kwinqanaba le-2. Oku kugqitywa kufana neyunifomu, i-matte yesilivere engwevu kwiikhoyili ezincinci, ubukhulu bayo buncitshiswe yinkqubo yokugqiba epholileyo ebandayo njengoko idla ngokusetyenziswa ngokugqitywa kwefektri.I-Pickling okanye i-descaling iyafuneka emva kokuba unyango lobushushu lususe i-chromium.I-Pickling ingaba yinyathelo lokugqibela lokuvelisa lo nyango oluphezulu olufunekayo.Xa i-peyinti epeyintiweyo inikezela ngepeyinti egqwesileyo njengoko i-2D ipeyintiweyo inikezela ngepeyinti egqwesileyo.
I-Polish No. 3 ibonakaliswe ngemigca emifutshane, engqindilili, ehambelanayo yokupolisha.Ifumaneka ngokupolisha ngoomatshini kunye ne-abrasives ephuculweyo eqhubekayo okanye ngokudlula iikhoyili kwii-roller ezikhethekileyo ezicinezela iipateni ebusweni, ukulinganisa ukubonakala komatshini.
Ukupholisha koomatshini, i-50 okanye i-80 grit idla ngokusetyenziswa ekuqaleni, kwaye i-100 okanye i-120 grit iqhele ukusetyenziselwa ukugudisa okokugqibela.Uburhabaxa bomphezulu buqhele ukuba noburhabaxa obuyi-avareji (Ra) ye-microintshi ezingama-40 okanye ngaphantsi. , izixhobo zasekhitshini, kunye nezixhobo zenzululwazi yi-No.
No. 4 ukugqiba yeyona nto ixhaphakileyo kwaye isetyenziswa kwisixhobo kunye namashishini okutya.Inkangeleko yawo ibonakaliswe ngemigca emifutshane egudisiweyo ehambelanayo enwenwela ngokulinganayo kubude bekhoyili.Ifumaneka ngokugqityezelwa ngoomatshini No. es.
Uburhabaxa bomphezulu budla ngokuba yiRa 25 µin.okanye ngaphantsi.Olu kugqiba lusetyenziswa kakhulu kwindawo yokutyela nasekhitshini, kwiivenkile ezithengisa ukutya, ukutya kunye nezixhobo zobisi.Njengokugqibezela iNombolo yesi-3, ukuba umqhubi ufuna ukudibanisa i-welds okanye enze ezinye izinto zokugqiba, umgca opholisiweyo onesiphumo udla ngokuba mde kunomgca kwimveliso egudisiweyo ngumenzi okanye iindawo zokupakisha ibhedlele apho kufunyenwe isixhobo somgqubo wetanki kunye nesixhobo sokucoca indawo yesibhedlele. iipaneli zokulawula, kunye nezixhobo zokukhupha amanzi.
I-Polish No. 3 ibonakaliswe ngemigca emifutshane, engqindilili, ehambelanayo yokupolisha.Ifumaneka ngokupolisha ngoomatshini kunye ne-abrasives ephuculweyo eqhubekayo okanye ngokudlula iikhoyili kwii-roller ezikhethekileyo ezicinezela iipateni ebusweni, ukulinganisa ukubonakala komatshini.
Ukugqitywa kweNombolo yesi-7 kubonakaliswe kakhulu kwaye kufana nesibuko.Iphuculwe kwi-320 grit kunye ne-polish No.
Kukho ukuqhubela phambili okubonakalayo kwii-abrasives ezisetyenziselwa ukufezekisa oku kugqitywa kwendawo, ukunceda abavelisi bavelise iindawo ezininzi ngokukhuselekileyo, ngokukhawuleza, kunye neendleko ezifanelekileyo.
Ezi abrasives zibonelela ngokukhawuleza, ubomi obude, kunye nokunciphisa inani lamanyathelo afunekayo ukuze kwenziwe umsebenzi.Ngokomzekelo, i-flap ene-microcracks kwiincinci ze-ceramic yandisa ubomi bayo ngesantya esicothayo kwaye inika ukugqitywa okuhambelanayo.
Ukongezelela, iteknoloji efana ne-abrasives abrasives inamaqhekeza adibanisa ukusika ngokukhawuleza kwaye anike ukugqiba okungcono.Kufuna amanyathelo ambalwa kunye ne-inventory encinci yokwenza umsebenzi, kwaye abaninzi abaqhubi babona ukusebenza kakuhle kunye nokugcinwa kweendleko.
Michael Radaelli is Product Manager at Norton|Saint-Gobain Abrasives, 1 New Bond St., Worcester, MA 01606, 508-795-5000, michael.a.radaelli@saint-gobain.com, www.nortonabrasives.com.
Abavelisi banomngeni wokugqiba iikona kunye ne-radii yeengxenye zetsimbi ezingenasici.Ukudibanisa i-welds enzima ukufikelela kunye neendawo zokwenza, inenkqubo yezinyathelo ezinhlanu ezifuna ivili lokugaya, i-square pad yeegrits ezininzi, kunye nesondo esifanayo sokugaya.
Okokuqala, abaqhubi basebenzisa ivili lokusila ukwenza imikrwelo enzulu kula macandelo ensimbi engenasici.Amavili okugaya ngokubanzi aqinile kwaye axolelwe kakhulu, abeka umqhubi kwindawo engafanelekanga ekuqaleni.Inyathelo lokugaya lalichitha ixesha kwaye lishiye imikrwelo eyayifanele isuswe ngamanqwanqwa amathathu ongezelelweyo okugqiba i-pad ye-pad yokugqiba inyathelo lokugqiba i-uniform ye-grad surface ukufezekisa ubungakanani obufanayo beengqolowa.
Ngokutshintsha ivili lokugaya kwivili le-ceramic lobe, umqhubi wakwazi ukugqiba ukupholisa kwinqanaba lokuqala.Ukugcina ulandelelwano lwegrit efanayo njengoko kwinqanaba lesibini, umqhubi watshintsha iipads zesikwere ngevili le-flap, ukuphucula ixesha kunye nokugqiba.
Ukususa i-80-grit pad square kwaye endaweni yayo kunye non-elukiweyo mandrel kunye amasuntswana agglomerated ilandelwa yi-220-grit non-woven mandrel ivumela umqhubi ukuvelisa sheen ezinqwenelekayo kunye nokugqiba ngokubanzi kwaye kuphelisa imfuneko Inyathelo lokugqibela yinkqubo yokuqala (sebenzisa ivili lomanyano ukuvala inyathelo).
Ndiyabulela ekuphuculweni kwamavili e-flapper kunye nobuchwepheshe obungabonakaliyo, inani lamanyathelo liye lancitshiswa ukusuka kwisihlanu ukuya kwezine, elinciphisa ixesha lokugqiba ngama-40% kwaye ligcina iindleko zabasebenzi kunye nemveliso.
Kubekho ukuqhubela phambili okubonakalayo kwi-abrasives esetyenziselwa ukufezekisa oku kugqitywa komphezulu, ukunceda abavelisi bavelise iinxalenye ezininzi ngokukhuselekileyo, ngokukhawuleza, nangeendleko ezifanelekileyo.
I-WELDER, eyayisakuba yi-Practical Welding Today, ibonisa abantu bokwenene abenza iimveliso esizisebenzisayo nesisebenza ngazo yonke imihla.Eli phephancwadi liye lanceda abantu baseMntla Merika iminyaka engaphezu kwama-20.
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