Isebe lobugcisa be-TAA likholelwa ukuba unyango lwangaphambili ludlala indima ebalulekileyo ekusebenzeni kwengubo.Phakathi kwezinto ezininzi ezichaphazela ukusebenza kwengubo, ukunyangwa komphezulu yeyona nto ibalulekileyo.

Unyango lwangaphambili ngumsebenzi osisiseko

Ukulungiswa komphezulu kunokudala iimeko zokwaleka kunye nokusebenza okugqwesileyo kwimiba emibini: kumatshini, ibonelela ngoburhabaxa bomphezulu bokwaleka;Kwaye kwimichiza, yenza iimolekyuli zengubo ngokusondeleyo kunye nomgangatho we-substrate yensimbi.

Yoyisa isiphumo esibi sobuso obugudileyongenxaukutyabeka

Ukuba umphezulu ugudileyo, akuyi kubakho ukubambelela kakuhle phakathi kwengubo kunye nomgangatho, kwaye ukugubungela kumphezulu kunokususwa ngaphandle komzamo.Ngokuchasene noko, ukuba umphezulu we-workpiece unzima njenge-sandpaper, akulula ukususa i-coating.

Emva konyango lokukroba (ukuqhushumba kwesanti), umphezulu wentsimbi uya kubarhabaxa njengephepha lesanti, nto leyo esihlala siyibiza ngokuba buburhabaxa bomphezulu.

Izinto eziyingozi ezingabonakaliyo ngeso lenyama

Ngexesha lokunyangwa komphezulu wesakhiwo sentsimbi eruliweyo ngaphambi kokupeyinta, iinxalenye ezibonisa imingxuma yokubola emva kokudutyulwa kokudubula (ingakumbi emazantsi emingxuma yokuhlwa) inokuqulatha iityuwa ezinyibilikayo.Ukudubula okomileyo akukwazi ukususa ezi tyuwa.Ngoko ke, ngaphambi kokudweba, kukulungele ukujonga ukuba ngaba kukho i-salts e-soluble kunye nokugxininiswa kwabo kwindawo yokusebenza kunye nesixhobo esikhethekileyo sokuvavanya intsimi.Ukuba ukuxinwa kweetyuwa ezinyibilikayo kudlula ixabiso elivumelekileyo, kuya kuthathwa amanyathelo okuwasusa.

Ibakala lokucoca

Uqoqosho luyingxaki ekufuneka siyiqwalasele xa simisela umgangatho wokucoca umphezulu.Ngokuqhelekileyo, okukhona iimfuno zococeko ziphezulu, kokukhona ixabiso lokucoca liphezulu.Ukucoca umphezulu wentsimbi, iimfuno zokucoceka kweyona nqanaba lokucoca ngokucokisekileyo (SA 3) zibiza kakhulu kunezo zenqanaba lokucoca ngokucokisekileyo (SA 2).Ukucocwa komphezulu wezakhiwo zetsimbi ezisetyenziswe kwindawo eyingozi kakhulu kufuneka kufikelele kwinqanaba eliphezulu, kodwa kwezinye iimeko, ukuphumelela kweendleko zobomi benkonzo yokugubungela kukwayinto ebalulekileyo ekukhethweni kwinqanaba lokucoca.

I-workpiece ephathwayo nge-abrasive non-metallic abrasive ayinayo intsalela ye-athomu ye-Fe kwaye ayilula ukugqwala kunye ne-discolor, kodwa inezinga eliphezulu lokutyumza, uthuli olukhulu kunye nokungcola okukhulu, okungahambelani neemfuno zokukhusela okusingqongileyo.TAAigrit yentsimbi engenasici inokusombulula kakuhle iingxaki ekuhlangabezene nazo.Kwintsimi ethile yokucoca, i-workpiece ayifuni kuphela ukuba ingabikho kwi-corrosion kunye ne-discoloration emva kokunyanga kwendawo, kodwa kunye nokwenza uburhabaxa obuthile phezu komhlaba kunye nokufezekisa ukubambelela okwaneleyo emva kokugubungela.

Iintsimbiigrityenziwe ngehigh carbon steel shotinokuhlangabezana neemfuno ezirhabaxa emva kokucoca, kodwa iiathomu ze-Fe ziya kuhlala ziphezu komhlaba, okubangela umhlwa kunye nokuguquka kombala kunye nokuchaphazela umgangatho wokugquma.

Intsimbi yokusika ucingo olungenasiciinokuthintela umphezulu we-workpiece ukuba ungagqwala kwaye utshintshe umbala, kodwa uya kuba ngqukuva ngexesha lokuqhushumba, ngoko awukwazi ukuhlangabezana neemfuno zoburhabaxa.

Igrit yentsimbi engenasici i-grit ye-stainless material grit particle, ayinakusombulula kuphela ingxaki yokubola kunye nokuguqulwa kwebala ngenxa yee-athom ze-Fe ezishiyekileyo, kodwa kwakhona yenza imiphetho kunye neekona ukwenza ubunzulu be-anchor obufunekayo, ukuphucula umgangatho wokugquma kunye nokuhlangabezana neemfuno zokugquma.Inombono obanzi wemarike.

Ukwengeza, yenziwe ngentsimbi eshayinayoigritinokutshintsha iindidi zesanti yamaminerali kunye ne-non-metallic abrasives, njenge-alumina oxide, i-emery, isanti ye-quartz, i-glass beads, njl.

Xa kuthelekiswa neziqhoboshi ezingezizo ezentsimbi,yenziwe ngentsimbi eshayinayoigrit kunokuzisa iindleko eziphantsi zokusebenza, ukunciphisa kakhulu ukukhutshwa kothuli, ukunciphisa iindleko zokususa uthuli kunye nokuphucula indawo yokusebenza.

Ukusetyenziswa kwegrit yentsimbi engatyiwayo: