Basics Kusarudza Zvikamu paSandblasting

Jecha ndiro rainyanya kushandiswa pakuita izvi, nekudaro zita rekuti sandblasting. Mumakore makumi mashanu apfuura, zvimwe zvinhu zvakagadziridzwa kuitira nzira yekuchenesa zvinhu.

Nhasi, mazwi e media blasting uye abrasive blast kuchenesa anotsanangura nemazvo maitiro, sezvo blast zvinhu zvinogona kusanganisira chero nhamba yezvigadzirwa, zvakaita semarasha slag, garnet, magirazi mabhero, mateko ewalnut, uye zviyo.

Media blasting inogona kushandiswa pachinenge chikamu chese chetarakita, ichipihwa musanganiswa wakakodzera wemedia material, air pressure, volume, uye blast nozzle.

Zvinotevera ndezvimwe zvezvakakosha kana zvasvika pakusarudza zvikamu.

The Compressor
Iyo compressor yemhepo ndiyo inonyanya kukosha chikamu chejecha blasting process. Inopa huwandu hwemhepo uye kudzvanywa kwekufambisa iyo abrasive media kunyangwe hose uye kuputika nozzle ine yakaringana velocity kubvisa sikero, ngura, kana machira akachembera kubva panzvimbo yakanangwa.

Pakuputika kwekabati, 3 kusvika 5 cubic tsoka paminiti (cfm) inogona kukwana, anodaro. Pamabasa makuru, huwandu hwe25 kusvika 250 cfm hunogona kudikanwa.

Pakusarudza bhodhoro rinoputika kana kabhineti, kune marudzi maviri ekusarudza kubva: kusveta chikafu uye kudzvinyirirwa chikafu.

Feed Systems
Suction-feed masisitimu anoshanda nekupuruzira mabrasives zvakananga mupfuti inoputika. Izvi zvinotsamira pamhepo yecompressor ichipihwa mupfuti inoputika kugadzira vacuum. Apo pfuti inotangwa, iyo abrasive inosvetwa mumutsara wekudya kune pfuti inoputika. Mhepo inopunyuka inobva yatakura abrasive ichienda kwayakananga.

Kusiyana neizvi, masisitimu ekudzvinyirirwa anochengeta abrasive mumudziyo kana poto. Iyo poto inoshanda pakumanikidzwa kwakaenzana neiyo hosi yezvinhu. Ivharuvhu yekudzora yakamisikidzwa pazasi pepoto inometa iyo abrasive mumhepo inomhanya-mhanya. Mhepo inoyerera inobva yatakura abrasive kuburikidza nehosi yekuputika kune nzvimbo yebasa.

Iyo blast nozzle ndiyo mudziyo unoshandiswa kukwidziridza kumhanya kweiyo sandblasting abrasive. Nepo kune akatiwandei emhando dzakasiyana dzemanozzles, kune mana akajairika.

* Iyo yakatwasuka-inoboora nozzle inogadzira yakasimba patani yekuchenesa nzvimbo kana kuputika kwekabati. Inowanzoshandiswa pakuchenesa zvikamu zviduku.

* A venturi nozzle ndiyo yakanakisa sarudzo yekumusoro-kugadzirwa kwekuchenesa kwenzvimbo hombe. Izvo zvakakosha kuti uzive, zvisinei, kuti kana kuputika nekumanikidza kwakanyanya (100 psi kana kupfuura), mabrasives anogona kusvika kumhanya kweanopfuura 500 mph.

* Kaviri-venturi blast nozzle inogona kufungidzirwa semipumburu miviri yakaiswa kumagumo kusvika kumagumo. Mhepo-induction maburi mumuviri wemhuno inobvumira mweya we compressor kusanganiswa nemhepo yemuchadenga. Ichi chiito che venturi chinowedzera cfm uye zvakare chinowedzera saizi ye blast pattern. Deardorff anocherekedza kuti kaviri-venturi nozzle ndiyo yakanakisa sarudzo yekudzika-kudzvinyirira kuchenesa. Izvi zvinodaro nekuti kusvetwa kwemaburi emhepo-inopinza mhepo kune kugona kutakura akawanda anorema, dense abrasives kuburikidza nehose yemidziyo pane yakaderera.

* Fani nozzle inoburitsa feni patani inoshandiswa kuputika nzvimbo dzakakura dzakati sandarara. Iyo fan nozzle inoda yakawanda cfm air volume yekushanda.

Manozzles anowanikwawo nesarudzo yezvishandiso, zvinosanganisira aluminium, tungsten carbide, silicon carbide, uye boron carbide. Sezvingatarisirwa, sarudzo inoenderana nebhajeti rako uye kuomarara kwebasa. Ingo rangarira kuti kushandiswa kwe media kunowedzera nekupfeka kwe nozzle.

Zvese Nezve Abrasives
Zvinhu zvinokanganisa abrasive performance zvinosanganisira zvinotevera.

* Kuoma kwetsvina, ngura, kana machira akachembera kuti abviswe.

* Surface kuumbwa uye kunzwa.

* Hunhu hwekuchenesa hunodiwa.

* Mhando yeabrasive.

* Mutengo uye mari yekurasa.

* Recycle kugona.

Iyo abrasive chikamu chechero nzira yekuputika iyo inoita basa rekuchenesa. Pane mana makuru Classifications abrasive zvinhu.

* Natural abrasives inosanganisira silica jecha, mineral sands, garnet, uye specular hematite. Aya anoonekwa seanogona kushandiswa mabrasives uye anonyanya kushandiswa kuputika kwekunze.

* Mabrasives akagadzirwa nevanhu kana kugadzirwa akadai semagirazi mabeads, aluminium oxide, silicon carbide, steel shot, neplastic media, anogona kushandiswa zvakare uye anogona kushandiswa mumasisitimu anobvumira kupora nekudzokororwa.

* By-product abrasives - semarasha slag, iyo inogadzirwa nemagetsi emagetsi emagetsi emagetsi - anoonekwa seanonyanya kushandiswa abrasive mushure me silica sand.

* Non-metallic abrasives anowanzo kupatsanurwa se organic zvinhu. Izvi zvinosanganisira magirazi mabhedhi, epurasitiki media, uye mhando dzezviyo senge corncobs, gorosi starch, pecan shells, kokonati mateko, uye walnuts shells. Organic abrasives inoshandiswa kana kukuvara kushoma kwepasi kuchidikanwa.

Chimiro uye Kuoma
Zvimwe zvinofungwa pakusarudza abrasive chimiro chemuviri uye kuoma.

"Chimiro cheabrasive chinotarisa kunaka uye nekumhanya kwemaitiro ekuputika," anodaro Deardorff. "Angular, sharp, kana irregular-shape abrasives achachenesa nekukasira uye anoisa patarisiro. Mabrasives akatenderedzwa kana spherical achachenesa zvidimbu pasina kubvisa huwandu hwakawandisa hwehwaro."

Iko kuomarara, zvakadaro, kunokanganisa kwete chete kumhanya kwainochenesa, asiwo huwandu hweguruva hunogadzirwa uye chiyero chekuputsika, icho chinewo chakananga mhedzisiro pane inogona kudzokororwa.

Kuoma kweabrasive kunorongwa neMohs rating - iyo yakakwirira nhamba kubva ku1 (talc) kusvika ku10 (dhaimondi), iyo inonyanya kuoma chigadzirwa.

Kana iwe uchifarira Abrasive Blast Nozzle uye uchida rumwe ruzivo uye ruzivo, unogona KUTITA NEI runhare kana tsamba kuruboshwe, kana kuti TUMUMA MAIL pazasi peji.