Angazi ukuthi ungayikhetha kanjani i-blast nozzle? Ukulandela izinyathelo ezine, kulula!

--Izinyathelo ezine zikutshela ukuthi ungakhetha kanjani imibhobho yokuqhuma efanele

Imibhobho ye-sandblasting iklanywe ngezinhlobo ezahlukene ezinobukhulu obuhlukahlukene kanye nokwakheka kwezinto ezihlukahlukene. Ukukhetha umbhobho we-sandblast ofanele wohlelo ngalunye kumane nje kuyindaba yokuqonda okuguquguqukayo okuthinta ukusebenza kokuhlanza kanye nezindleko zomsebenzi. Uma ungazi ukuthi ungazikhethela kanjani umlomo wombhobho ofanele, landela izinyathelo ezi-4 njengezansi.

1. Khetha usayizi we-Nozzle Bore

Lapho ukhetha i-nozzle, iqala ngeyakhoi-compressor yomoya. Uma usuqonda ukuthi usayizi we-compressor yakho uwathinta kanjani amandla okukhiqiza, uzofuna ukubhekausayizi we-nozzle. Khetha umlomo wombhobho onesibhobo esincane kakhulu futhi uzobe ushiya umthamo wokuqhuma etafuleni. Isithukuthezi esikhulu kakhulu futhi uzoswela ingcindezi yokuqhuma ngendlela ekhiqizayo.

Ithebula elingezansi libonisa ukuhlobana phakathi kwevolumu yomoya, usayizi wombhobho, kanye nomfutho womlomo wombhobho futhi livame ukusetshenziswa embonini ukukhetha usayizi wombhobho. Inzuzo yakhona yangempela ukukhetha usayizi wombhobho okahle wokucindezela kwenozzle edingekayo ukwenza umsebenzi.

2. Khetha umumo weNozzle

Okulandelayo yi-umumo wombhobho. Ama-nozzles eza ngezindlela ezimbili eziyisisekelo:Si-traight borefuthiI-Venturi, ngokuhlukahluka okuningana kwamabhomu e-Venturi.

Imibhobho ye-Sight Bore(Inombolo 1) dala iphethini yokuqhuma eqinile yokuqhuma kwendawo noma umsebenzi wekhabhinethi yokuqhuma. Lezi zingcono kakhulu emisebenzini emincane efana nokuhlanza izingxenye, ukubunjwa kwe-weld seam, ukuhlanza ama-handrails, izinyathelo, i-grillwork, noma itshe lokudweba nezinye izinto.

I-Venturi yayinezimbobo(Izinombolo 2 kanye no-3) zakha iphethini yokuqhuma okubanzi futhi zikhuphule isivinini esilimazayo ngo-100% ngomfutho othile.

Imibhobho ye-Venturi iyisinqumo esingcono kakhulu sokukhiqiza okukhulu lapho kuqhunyiswa izindawo ezinkulu. Imibhobho ye-venturi ephindwe kabili kanye nobubanzi bomphimbo yizinguqulo ezithuthukisiwe zomlomo omude wesitayela se-venturi.

Ii-venturi kabiliisitayela (Inombolo 4) ingacatshangwa njengamabhomu amabili ochungechungeni anegebe nezimbobo phakathi ukuze kuvunyelwe ukufakwa komoya engxenyeni engezansi yomfula. Isiphetho sokuphuma siphinde sibe banzi kunombobo ovamile. Kokubili ukulungiswa kwenziwa ukuze kwandiswe usayizi wephethini yokuqhuma futhi kuncishiswe ukulahleka kwesivinini esibi.

Imibhobho yomphimbo ebanzi(Inombolo 5) ifaka umphimbo omkhulu wokungena kanye nebhobo elikhulu lokuphuma eliphambukayo. Uma ifaniswe nepayipi elinosayizi ofanayo ingahlinzeka ngokukhula ngo-15% kokukhiqiza phezu kwemibhobho enomphimbo omncane. Kungumqondo omuhle futhi ukuba nama-engeli nozzles atholakalele izindawo eziqinile njenge-brittle lattice, ngemuva kwama-flange, noma amapayipi angaphakathi. Ama-opharetha amaningi achitha ama-abrasives nesikhathi sokulinda i-ricochet ukwenza umsebenzi wenziwe. Isikhathi esincane esisithathayo ukushintshela ku-i-angle nozzleihlale ilulama ngokushesha, futhi isikhathi esiphelele emsebenzini siyancishiswa.

3. Khetha i-Nozzle Material

Uma usunqume usayizi we-nozzle nomumo, uzofuna ukucabangelaimpahlai-nozzle liner yenziwe ngayo. Izinto ezintathu eziyinhloko ekukhetheni okokusebenza kwe-nozzle efanelekile ukuqina, ukumelana nomthelela, kanye nentengo.

Ukukhethwa kwento yomlomo we-nozzle kuncike esikhunjeni osikhethayo, ukuthi uqhumisa kangaki, usayizi womsebenzi, kanye nobunzima besizinda somsebenzi. Nazi iziqondiso ezijwayelekile zokusebenzisa izinto ezahlukahlukene.

I-tungsten carbide nozzles:Angakwazi nikeza impilo ende kanye nomnotho lapho ukuphatha kabi kungenakugwenywa. Ifanele ukuqhuma kwe-slag, ingilazi, nama-abrasives amaminerali.

I-silicon carbideama-nozzles:Ingazweli futhi ihlala isikhathi eside njenge-tungsten carbide, kodwa cishe ingxenye eyodwa kwezintathu yesisindo samabhomu e-tungsten carbide. Ukukhetha okuhle kakhulu lapho opharetha besemsebenzini isikhathi eside futhi bekhetha umlomo wombhobho ongasindi.

I-Boron carbide nozzles:Iqinile kakhulu futhi ihlala isikhathi eside, kodwa i-brittle. I-Boron carbide ilungele iziqhumane ezinolaka ezifana ne-aluminium oxide kanye nezinhlanganisela zamaminerali ezikhethiwe lapho ukuphatha kabi kungagwenywa. I-Boron carbide ngokuvamile izokhipha i-tungsten carbide izikhathi ezinhlanu kuya kweziyishumi kanye ne-silicon carbide izikhathi ezimbili kuya kwezintathu lapho kusetshenziswa ama-abrasives anolaka. Intengo nayo iphakeme kakhulu phakathi kwabo.

4. Khetha Intambo neJacket

Okokugcina, udinga ukukhetha impahla yejacket evikela isisu. Kufanele futhi ucabangele ukuthi yisiphi isitayela somucu esizifanela kangcono izidingo zakho zokuqhunyiswa kwesihlabathi: intambo ecolekile noma intambo eqinile (inkontileka).

1) I-Nozzle Jacket

Ijakhethi le-Aluminium:Amabhantshi e-aluminium anikeza izinga eliphezulu kakhulu lokuvikela emonakalweni womthelela ku-lightweight.

Ijakhethi Lensimbi:Amabhantshi ensimbi anikeza izinga eliphezulu kakhulu lokuvikela emonakalweni womthelela ku-heavyweight.

Ijakhethi Lerabha:Ijakhethi yenjoloba Ayisindi ngenkathi isahlinzeka ngokuvikeleka komthelela.

2) Uhlobo Lwentambo

Intambo Emahhadla (Inkontileka)

Intambo esezingeni lomkhakha emicu engu-4½ iyintshi ngayinye (TPI) (114mm), lesi sitayela sehlisa kakhulu ithuba lokuwela futhi kulula kakhulu ukuyifaka.

Intambo Enhle(Uchungechunge lwe-NPSM)

I-National Standard Free-Fitting Straight Mechanical Pipe Thread (NPSM) iwuchungechunge olujwayelekile lwemboni olusetshenziswa kabanzi eNyakatho Melika.

IMIBONO YOKUGCINA

Umoya omkhulu namabhomu amakhulu kuholela emazingeni amakhulu okukhiqiza, kodwa wumumo webhobo lombhobho onquma ukusheshisa kwezinhlayiya nosayizi wephethini yokuqhuma.

Kukho konke, awukho umbhobho ongcono kakhulu, iphuzu elibalulekile ukuthola imibhobho efanelekile kakhulu ongayisebenzisa.