Izinto Ezisisiseko Ukukhetha Izixhobo ze-Sandblasting

Isanti yayiyeyona nto ixhaphakileyo yokuqhobosha esetyenziswa kule nkqubo, kungoko igama elithi sandblasting. Kwiminyaka engama-50 edlulileyo, izinto ezongezelelweyo zilungelelaniswe kwinkqubo yokucoca izinto.

Namhlanje, amagama okuqhushumba kwemithombo yeendaba kunye nokucocwa koqhushumbo oluqhumayo kuchaza ngokuchanekileyo inkqubo, kuba izinto eziqhushumbayo zinokubandakanya naliphi na inani leemveliso, ezinje nge-slag yamalahle, igarnet, iintsimbi zeglasi, amaqokobhe e-walnut, kunye nee-corncobs.

Uqhushumbo lwemidiya lunokusetyenziswa phantse kuwo wonke ummandla wetrektara, ngokunikwa umxube ochanekileyo wemathiriyeli yemidiya, uxinzelelo lomoya, umthamo, kunye nombhobho wokuqhushumba.

Okulandelayo zezinye zeziseko xa kuziwa ekukhetheni amacandelo.

ICompressor
Icompressor yomoya yeyona nto ibalulekileyo kwinkqubo yokuqhunyiswa kwesanti. Inika umthamo womoya kunye noxinzelelo lokuhambisa imidiya erhabaxa nangona ithumbu kunye noqhushumbo lombhobho onesantya esaneleyo sokususa isikali, umhlwa, okanye iingubo ezindala ukusuka kwindawo ekujoliswe kuyo.

Ngokuqhushumba kwekhabhinethi, i-3 ukuya kwi-5 cubic feet ngomzuzu (cfm) inokwanela, utsho. Kwimisebenzi emikhulu, uluhlu lwama-25 ukuya kuma-250 cfm lunokuba yimfuneko.

Xa ukhetha imbiza eqhumayo okanye ikhabhinethi, kukho iindidi ezimbini onokukhetha kuzo: ukutya okufunxayo kunye nokutya koxinzelelo.

Iinkqubo zokutyisa
Iinkqubo ze-suction-feed zisebenza ngokukhupha i-abrasives ngokuthe ngqo kwi-blast gun. Oku kuxhomekeke kumoya wecompressor owondliwa kumpu wokuqhushumba ukwenza ivacuum. Xa umpu uqhutywe, i-abrasive ifakwe kumgca wesondlo kwi-gun gun. Umoya ophumayo emva koko uthwala i-abrasive kwindawo ekujoliswe kuyo.

Ngokwahlukileyo, iinkqubo zoxinzelelo-zokutya zigcina i-abrasive kwisitya okanye embizeni. Imbiza isebenza ngoxinzelelo olulingana nolo lwethumbu lezinto eziphathekayo. Ivalve yokulawula ebekwe emazantsi embiza ilinganisa i-abrasive ibe ngumsinga womoya onesantya esiphezulu. Umjelo womoya emva koko uthwala i-abrasive ngokusebenzisa umbhobho wokuqhushumba ukuya kwindawo yokusebenza.

Umbhobho wokuqhushumba sisixhobo esisetyenziselwa ukunyusa isantya sempembelelo ye-sandblasting abrasive. Nangona kukho iindidi ezahlukeneyo zemilomo, kukho ezine eziqhelekileyo.

• Umbhobho obhobhozayo othe ngqo wenza ipateni eqinileyo yokucoca indawo okanye ukuqhushumba kwekhabhathi. Ngokuqhelekileyo isetyenziselwa ukucoca iindawo ezincinci.

* Umbhobho we-venturi lolona khetho lulungileyo lokucoca imveliso ephezulu yemiphezulu emikhulu. Kubalulekile ukuqaphela, nangona kunjalo, ukuba xa kuqhunyiswa kuxinzelelo oluphezulu (i-100 psi okanye ngaphezulu), i-abrasives inokufikelela kwisantya esingaphezu kwe-500 mph.

• Umbhobho wokuqhushumba ophindwe kabini unokucingelwa njengemilomo emibini ebekwe ekupheleni ukuya ekupheleni. Imingxuma yokungenisa umoya kumzimba wombhobho ivumela umoya wecompressor ukuba udibanise nomoya we-atmospheric. Esi senzo se-venturi sonyusa i-cfm kwaye sinyusa ubungakanani bepateni yokuqhushumba. I-Deardorff iphawula ukuba i-double-venturi nozzle iyona nto ikhethekileyo yokucoca uxinzelelo oluphantsi. Oku kungenxa yokuba isenzo sokufunxa semingxunya yokungenisa umoya sinakho ukuthwala izixa ezikhulu, iibrasives ezixineneyo ngombhobho wezinto eziphathekayo kuxinzelelo oluphantsi.

• Umlomo wefeni uvelisa ipateni yefeni esetyenziselwa ukuqhushumba imiphezulu emikhulu, ethe tyaba. Umbhobho wefeni ufuna umthamo womoya ongaphezulu we-cfm ukuze usebenze.

Imilomo ye-nozzles nayo iyafumaneka kunye nokukhethwa kwezinto zokugqoka, ezibandakanya i-aluminium, i-tungsten carbide, i-silicon carbide, kunye ne-boron carbide. Ngokwemvelo, ukhetho luxhomekeke kwibhajethi yakho kunye nobunzima bomsebenzi. Gcina nje ukhumbule ukuba ukusetyenziswa kwemidiya kuyanda ngokunxitywa kwe-nozzle.

Konke malunga ne-Abrasives
Izinto ezichaphazela ukusebenza kwe-abrasive ziquka ezi zilandelayo.

* Ukuqina kobumdaka, ukubola, okanye ukugquma okugugayo kuya kususwa.

* Ukuqulunqwa komphezulu kunye novakalelo.

* Umgangatho wokucoca ofunekayo.

* Uhlobo lwe-abrasive.

* Iindleko kunye neendleko zokulahla.

* Isakhono sokusebenzisa kwakhona.

I-abrasive yinxalenye yayo nayiphi na inkqubo yokuqhushumba eyenza ngokwenene umsebenzi wokucoca. Kukho iindidi ezine eziphambili zemathiriyeli e-abrasive.

• Izinto ezixutywayo zendalo ziquka isanti ye-silica, isanti yemineral, igarnet, kunye nespecular hematite. Ezi zithathwa njengeebrasives ezisebenzisekayo kwaye zisetyenziselwa ikakhulu ukuqhushumba kwangaphandle.

* Izinto eziqhotsayo ezenziwe ngumntu okanye ezenziwe ngabantu, ezifana namaso eglasi, ialuminiyam oxide, isilicon carbide, intsimbi yokudutyulwa, kunye nezixhobo zeplastiki, ziyakwazi ukuphinda zisetyenziswe kwaye zinokusetyenziswa kwiinkqubo ezivumela ukuchacha nokuphinda kusetyenziswe.

* Izinto ezixutywe nemveliso – ezifana ne-slag yamalahle, eyimveliso ephuma kwimizi-mveliso yamandla ombane ebaselwa ngamalahle – zithathwa njengezona zirhabaxa zisetyenziswa kakhulu emva kwesanti yesilica.

• Iibrasives ezingezizo ezentsimbi zidla ngokuhlelwa njengezinto eziphilayo. Oku kubandakanya amaso eglasi, imidiya yeplastiki, kunye neendidi zeenkozo ezifana ne-corncobs, isitashi sengqolowa, iigobolondo ze-pecan, iigobolondo zekhokhonathi, kunye namaqokobhe e-walnut. Iibrasives ze-Organic zisetyenziswa xa kufuneka umonakalo omncinci womphezulu.

Ubume kunye Nokuqina
Okunye okuqwalaselwayo xa ukhetha i-abrasive kukumila komzimba kunye nobunzima.

"Imilo ye-abrasive iya kugqiba umgangatho kunye nesantya senkqubo yokuqhushumba," uphawula uDeardorff. "Ii-angular, ezibukhali, okanye i-abrasives-shape-shape iyakucoca ngokukhawuleza kwaye ifake indawo ekujoliswe kuyo. I-abrasives ejikelezayo okanye e-spherical iyakucoca iinxalenye ngaphandle kokususa ubuninzi obuninzi bezinto ezisisiseko."

Ubunzima, okwangoku, abuchaphazeli nje isantya esicoca ngaso, kodwa kunye nobuninzi bothuli oluveliswayo kunye nesantya sokuphuka, esinefuthe elithe ngqo kwi-recycle yamandla.

Ubunzima be-abrasive buhlelwa ngumlinganiselo we-Mohs - inani eliphezulu ukusuka kwi-1 (talc) ukuya kwi-10 (diamond), imveliso inzima.

Ukuba unomdla kwiAbrasive Blast Nozzle kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, UNGAQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.