Insimbi engagqwali inezakhiwo eziningi ezenza ikhangeke ngezinhlelo ezahlukene zokusebenza, kodwa lezi zakhiwo ezifanayo zingenza kube nzima ukusebenza ngazo. Ngesikhathi isetshenziswa, iyaklwebheka futhi ingcole kalula, okwenza ithambekele ekugqwaleni. Okokugcina kodwa okungabalulekile, ibiza kakhulu kunensimbi yekhabhoni, ngakho-ke inkinga yezindleko zezinto zokwakha iba nkulu kakhulu lapho kukhiqizwa izingxenye zensimbi engagqwali.
Amakhasimende nawo alindele lukhulu ngekhwalithi yokuqeda, efuna ukuqeda okufana nesibuko kwento ezovezwa njengomkhiqizo oqediwe ngokwemvelo yayo. Amathuba amancane kakhulu okufihla iphutha ngokumboza noma ngopende.
Uma usebenza ngamapayipi ensimbi engagqwali, lezi zinkinga ziyanda ngezinga elithile, njengoba ukukhetha amathuluzi afanele futhi asebenzayo okucubungula izinto kalula kuze kube sekuqedweni kunqunyelwe.
Ngenxa yokumelana kwayo nokugqwala, insimbi engagqwali ilungele ukusetshenziswa okudinga ukukhanya kwemvelo kwensimbi, njengeziteringi nama-armrest. Lokhu kusho nokuthi ububanzi bangaphandle bepayipi bungahluka kusukela ekuqandeni kuya ekubukekeni okubushelelezi nokungenaphutha.
Lokhu kudinga ithuluzi elifanele elihlanganiswe nesihluthulelo esifanele. Ngokuvamile umbuzo wokuqala esiwubuza amakhasimende ethu ukuthi yikuphi ukutshalwa kwezimali abazimisele ukukwenza ukuqinisekisa ukuthi bathola ukuqeda kwepayipi okufiswayo ngokushesha nangokungaguquguquki. Kulabo abafuna ukugcina ukugeleza okuzinzile kwemiyalelo yokuqeda ipayipi, ukwenza inqubo ngokuzenzakalela nge-grinder engenasisekelo, i-cylindrical grinder, noma olunye uhlobo lomshini webhande ngokuqinisekile kungenza kube lula ukuhlunga izingxenye ukuze kufezwe umphumela ofiswayo. Ukuqina komkhiqizo oqediwe kungatholakala futhi kusukela engxenyeni kuya kwenye.
Kodwa-ke, kukhona nezinketho zamathuluzi esandla. Kuye ngobukhulu bepayipi, umshini wokugaya ibhande ungaba yindlela ephumelelayo yokuqinisekisa ukuthi i-geometry yengxenye ayishintshi ngesikhathi senqubo yokuqeda. Ukusetshenziswa kwe-belt slack kuvumela iphrofayili ye-tubular ukuthi isebenze ngaphandle kokuyinciphisa. Amanye amabhande anama-pulley amathathu okuxhumana, okuvumela ukuguquguquka okwengeziwe nxazonke kwepayipi. Amabhande ayatholakala ngobukhulu obuhlukahlukene. Amabhande efayela asukela ku-18″ kuya ku-24″, kuyilapho i-King-Boa idinga amabhande angu-60″ kuya ku-90″. Amabhande angenasikhungo nayi-cylindrical angaba amasentimitha angu-132 ubude noma ngaphezulu futhi afike ku-6 amayintshi ububanzi.
Inkinga ngamathuluzi esandla ukuthi ukuthola isiphetho esifanele ngokuphindaphindiwe kuwubuciko kakhulu kunesayensi. Abasebenzi abanolwazi bangafinyelela iziphetho ezinhle kakhulu ngale ndlela, kodwa kudinga ukuzijwayeza. Ngokuvamile, isivinini esiphezulu sibangela imihuzuko emincane, kanti isivinini esiphansi sibangela imihuzuko ejulile. Ukuthola ibhalansi yomsebenzi othile kuncike kumqhubi. Isivinini sokuqala setheyiphu esinconywayo sincike endaweni yokugcina oyifunayo.
Kodwa-ke, kubalulekile ukugwema ukusebenzisa ama-disc noma ama-hand grinder anoma yiluphi uhlobo ekucubunguleni amapayipi. Kunzima ukuthola iphethini oyifunayo ngala mathuluzi, futhi uma ucindezela i-dial kakhulu, ingathinta i-geometry futhi idale indawo eyisicaba epayipini. Ngakwesokunene, uma umgomo uwukupholisha ubuso besibuko kunokuba kube iphethini yokuklwebheka, kuzosetshenziswa izinyathelo eziningi zokusila futhi isinyathelo sokugcina kuzoba yi-polish compound noma induku yokupholisha.
Ukukhetha i-abrasive kudinga ukuqonda okucacile kokuphela kokugcina. Yiqiniso, lokhu kulula ukukusho kunokukwenza. Ukuhlola okubonakalayo kuvame ukusetshenziswa ukufanisa izingxenye nemikhiqizo ekhona. Kodwa-ke, umhlinzeki we-abrasive esitolo angasiza ekunqumeni ukuthi kungcono kanjani ukunciphisa kancane kancane inani le-abrasive ukuze kufezwe umphumela oyifunayo.
Uma ugaya insimbi engagqwali endaweni yokugcina, kubalulekile ukusebenzisa inqubo yokuhudula elandelanayo. Ekuqaleni, ufuna ukuqinisekisa ukuthi wonke amabala nezimbobo ziyasuswa. Sifuna ukuqala ngomkhiqizo ongcono kakhulu wokubhekana nalezi ziphutha; lapho ukuhudula kujula, kulapho kudingeka umsebenzi omningi wokukulungisa. Esinyathelweni ngasinye esilandelayo, kufanele kuqashelwe ukususa imihuzuko kusukela kokuhudula kwangaphambilini. Ngakho-ke, iphethini yokuhudula efanayo ifinyelelwa kumkhiqizo oqediwe.
Ngezibhulashi ezimboziwe zendabuko, kungaba nzima ukweqa amazinga okubhula ukuze uthole isiphetho esifanele se-matte ensimbi engagqwali ngenxa yendlela ukubhula okuwohloka ngayo. Kodwa-ke, ubuchwepheshe obunye bukuvumela ukweqa izinyathelo, njenge-3M's Trizact abrasives, eziguga ngendlela yokuthi ukubhula "kuvuselelwe" ngohlamvu olusha oluveziwe njengoba lusetshenziswa. 3M
Vele, ukunquma izinga lobukhali bento ehudulayo kuncike ezintweni ezisetshenziswayo. Uma udinga ukususa amaphutha afana nesikali, ama-dents noma imihuzuko ejulile, kuzodingeka usebenzise into ehudulayo. Isibonelo, sivame ukuqala ngebhande lokuhambisa elingu-3M 984F noma elingu-947A. Lapho sesishintshele emabhandeni angu-80 e-grit, sashintshela emabhandeni akhethekile kakhulu.
Uma usebenzisa ama-abrasives agqokiwe avamile, qiniseka ukuthi unciphisa ukwakheka kwe-abrasives ngayinye ngaphandle kokuphuthelwa ngenxa yokuthi i-abrasives iphuka kanjani ukuze kutholakale ukuqeda okuqondile kwensimbi engagqwali. Uma i-abrasives iphuka, kudingeka ingcindezi eyengeziwe ukuze kufezwe umphumela ofanayo namaminerali amnyama noma asuswa ku-abrasives. Amaminerali aqinile noma amandla aphezulu akhiqiza ukushisa. Ngenxa yokuthi ukushisa kuyinkinga lapho kuqedwa insimbi engagqwali, kungathinta ukuqeda futhi "kuluhlaza okwesibhakabhaka" ubuso.
Enye inkinga engaphakama ngezinye izinto zokubhula ezishibhile ukuhambisana kwezimbiwa zazo zokuqeda. Kuzoba nzima kumuntu ongenalwazi ukuqinisekisa ukuthi into yokubhula ithola indawo oyifunayo esinyathelweni ngasinye. Uma kukhona ukungahambisani, kungase kubonakale imihuzuko engase ingabonakali kuze kube sesigabeni sokupholisha.
Kodwa-ke, ezinye izindlela zikuvumela ukuthi weqe izinyathelo. Isibonelo, i-Trizact Abrasive ye-3M isebenzisa ingxube ye-resin kanye ne-abrasive ukudala isakhiwo se-pyramidal esivuselela ubuso obu-abrasive ngezinhlayiya ezisanda kuvezwa ngisho noma i-abrasive iguga. Lobu buchwepheshe buqinisekisa ukuqeda okufanayo kuyo yonke impilo yebhande. Ngenxa yokuthi ibanga ngalinye le-Trizact tape linikeza ukuqeda okubikezelwayo, sikwazile ukweqa amazinga a-abrasive ekugcineni. Lokhu kusindisa isikhathi ngokunciphisa izinyathelo zokusila nokunciphisa ukuphinda usebenze ngenxa yokusila okungaphelele.
Isihluthulelo sokukhetha i-abrasive ukunquma ukuthi ungayithola kanjani i-finish efanele ngesikhathi esifanele nangendlela engabizi kakhulu.
Njengoba insimbi engagqwali iyinto eqinile, ukukhetha i-abrasive kanye namaminerali kubaluleke kakhulu. Uma usebenzisa i-abrasive engafanele, uma isetshenziswa isikhathi eside, kukhiqizwa ukushisa okuningi. Kubalulekile ukusebenzisa uhlobo olufanele lwe-mineral kanye nokusebenzisa i-abrasive ene-heat dissipative coating ukususa ukushisa endaweni yokuxhumana lapho usika.
Uma usebenzisa umshini, ungasebenzisa ne-part coolant, esiza futhi ukususa udoti, ukuqinisekisa ukuthi imihuzuko ayilimazi indawo. Qiniseka ukuthi usebenzisa isihlungi esifanele ukuze udoti ungaphindi ungene lapho i-coolant iphinda ijikeleziswa emshinini.
Iningi labantu licabanga ukuthi yonke insimbi engagqwali ibukeka ifana, kodwa uma kukhulunywa ngobuso obuqediwe bengxenye, izinhlobo ezimbili ezahlukene zamaminerali zingathinta ukubukeka kwaleyo ngxenye. Lo mbono uncike kumsebenzisi.
Isibonelo, i-silicon carbide yendabuko ivame ukushiya imihuzuko ejulile ekhombisa ukukhanya ngendlela ehlukile futhi yenze kube luhlaza okwesibhakabhaka.
Ngesikhathi esifanayo, i-aluminium oxide yendabuko ishiya isimo esiyindilinga esibonakalisa ukukhanya ngendlela ehlukile futhi senza impahla ibe phuzi.
Kuye ngobukhulu bepayipi, umshini wokugaya ibhande ungaba yindlela ephumelelayo yokuqinisekisa ukuthi i-geometry yengxenye ayishintshi ngesikhathi senqubo yokuqeda. Ukusetshenziswa kwe-belt slack kuvumela iphrofayili ye-tubular ukuthi isebenze ngaphandle kokuyinciphisa. 3M
Ukwazi ukuphela kwengxenye okudingekayo kubalulekile ngoba izinhlelo zokusebenza zivame ukudinga izingxenye ezintsha ukuze zifane nezikhona.
Insimbi engagqwali iyinto ebiza kakhulu, ngakho-ke ukukhetha ngokucophelela amathuluzi okuqeda kubalulekile. Ukusekelwa okufanele okuvela kubahlinzeki kungasiza izitolo ukuthola izindlela zokonga isikhathi nemali.
Gabi Miholix is ​​an Application Development Specialist in the Abrasive Systems Division of 3M Canada, 300 Tartan Dr., London, Ontario. N5V 4M9, gabimiholics@mmm.com, www.3mcanada.ca.
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