Nhanganyaya yeSandblasting

Izwi rokuti sandblasting rinotsanangura kuputika zvinhu zvinokuvadza pamusoro pepamusoro nekushandisa mweya wakamanikidzwa. Kunyange zvazvo jecha rinowanzoshandiswa sezwi reamburera kune dzose nzira dzekuputira dzinopisa, dzinosiyana nekuputika kwepfuti apo iyo abrasive media inofambiswa nevhiri rinotenderera.

Sandblasting inoshandiswa kubvisa pendi, ngura, marara, zvikweshwa uye mavanga ekukanda kubva panzvimbo asi inogonawo kuita zvakapesana nekuisa nzvimbo yekuwedzera magadzirirwo kana dhizaini.

Jecha hariwanzo kushandiswa mukuputira jecha nhasi nekuda kwenjodzi dzehutano uye matambudziko ane chekuita nehunyoro. Dzimwe nzira dzakaita sesimbi grit, magirazi mabhedhi uye aluminium oxide zvave kufarirwa pakati pemamwe marudzi mazhinji epfuti media.

Sandblasting inoshandisa mhepo yakamanikidzwa kufambisira zvinhu zvinoputika, zvakasiyana nekuputika kwepfuti, uko kunoshandisa vhiri blast system uye centrifugal force yekumhanyisa.

Chii chinonzi Sandblasting?

Sandblasting, inowanzonziwo abrasive blasting, inzira inoshandiswa kubvisa kusvibiswa kwepamusoro, kutsetseka nzvimbo dzakashata, uye zvakare roughen dzakatsetseka. Iyi inzira yakaderera-mutengo nekuda kwemidziyo yayo isingadhure, uye iri nyore apo ichiunza mhedzisiro yemhando yepamusoro.

Sandblasting inoonekwa seyakapfava abrasion blasting technique kana ichienzaniswa nepfuti. Nekudaro, kusimba kunogona kusiyanisa zvichienderana nerudzi rwechigadzirwa chejecha, kudzvanywa kwemhepo yakamanikidzwa, uye rudzi rweabrasive media inoshandiswa.

Sandblasting inopa sarudzo yakawanda yeabrasive zvinhu zvinobudirira mumashandisirwo akasiyana, sekubvisa pendi uye kusvibiswa kwepamusoro kwakareruka mukusimba. Maitiro acho zvakare akanakira kuchenesa inonzwisisika zvinhu zvemagetsi uye corroded connectors zvine hunyoro. Mamwe maapplication ejecha anoda abrasive blasting power anogona kushandisa high-pressure setting uye abrasive shot media.

Iyo Sandblasting process Inoshanda Sei?

Iyo sandblasting process inoshanda nekusimudzira sandblasting media kusvika pamusoro kuburikidza nekushandisa sandblaster. Iyo sandblaster ine zvikamu zviviri zvikuru: bhodhoro rinoputika uye kutora mhepo. Iyo bhoti inoputika inobata media inoputika uye inofambisa zvimedu kuburikidza nevharuvhu. Kutora kwemhepo kunofambiswa nemhepo compressor iyo inoshandisa kudzvanywa kune media mukati mekamuri. Inobuda mumuromo nekumhanya kukuru, ichikanganisa pamusoro nechisimba.

Iyo jecha rinoputika rinogona kubvisa marara, nzvimbo dzakachena, kubvisa pendi, uye kunatsiridza kupera kwechinhu. Migumisiro yaro inoenderana zvikuru nemhando yeabrasive uye maitiro ayo.

Yemazuva ano sandblast midziyo ine yekudzoreredza sisitimu inounganidza yakashandiswa midhiya uye inozadza bhodhoro rinoputika.

Sandblasting Equipment

Compressor - Iyo compressor (90-100 PSI) inopa yakamanikidzwa mhepo inopa iyo inosimudzira iyo abrasive media kusvika pamusoro pechinhu. Dzvinyiriro, vhoriyamu, uye simba rebhiza kazhinji ndizvo zvinhu zvakakosha zvekufunga nezvazvo pakusarudza yakakodzera sandblasting compressor.

Sandblaster - Sandblasters (18-35 CFM - cubic tsoka paminiti) endesa iyo abrasive midhiya pachinhu uchishandisa mweya wakamanikidzwa. Industrial sandblasters inoda yakakwira volumetric kuyerera mwero (50-100 CFM) sezvo iine nzvimbo yakakura yekushandisa. Kune marudzi matatu ejecha: giravhiti-yakadyiswa, pressure blasters (positive pressure), uye siphon sandblasters (negative pressure).

Blast cabinet - Iyo blast cabinet inzvimbo inotakurika inoputika iyo idiki uye compact yakavharirwa system. Iyo inowanzo ine zvikamu zvina: iyo cabinet, abrasive blasting system, recycling, uye guruva kuunganidza. Makabati anoputika anoshandiswa nekushandisa maburi egirovhosi emaoko emushandisi uye chitsiko chetsoka chekudzora kuputika.

Blastkamuri - Kamuri inoputika inzvimbo inogona kugadzirisa zvakasiyana-siyana zvemidziyo iyo inowanzo shandiswa kuita zvekutengesa. Zvikamu zvendege, midziyo yekuvakisa, uye zvikamu zvemotokari zvinogona kugadzika jecha mukamuri rinoputika.

Blast recovery system - Midziyo yemazuva ano yejecha ine kuputika kudzoreredza masisitimu anodzoreredza sandblasting media. Inobvisawo tsvina inogona kukonzera kusvibiswa kwenhepfenyuro.

Cryogenic deflashing system - Tembiricha yakaderera kubva ku cryogenic deflashing masisitimu inobvumira kuparara kwakachengeteka kwezvinhu, senge diecast, magnesium, plastiki, rabha, uye zinc.

Wet blast equipment - Wet blasting inobatanidza mvura mu abrasive blasting media kuderedza kupisa kubva mukukweshana. Iyo zvakare yakapfava abrasion nzira kana ichienzaniswa nekuoma kuputika sezvo ichingokwesha nzvimbo yakanangwa muworkpiece.

Sandblasting Media

Sezvinoratidzwa nezita racho, mafomu ekutanga ejecha ainyanya kushandiswa sejecha nekuda kwekuvapo kwaro, asi raive nezvinonetsa muchimiro chekunyorova uye zvinosvibisa. Kunyanya kunetseka nejecha sechinhu chinokuvadza injodzi dzehutano hwaro. Kufemba guruva resilica kubva mujecha kunogona kukonzera hosha dzakakomba dzekufema, kusanganisira silicosis nekenza yemapapu. Nokudaro, mazuva ano jecha harisi kushandiswa uye zvakasiyana-siyana zvemazuva ano zvinoputika zvakatsiva iyo.

Iyo blasting media inosiyana zvichienderana neinodiwa pamusoro pekupedzisira kana application. Zvimwe zvinozivikanwa zvinoputika media zvinosanganisira:

Aluminium oxide grit (8-9 MH - Mohs kuomarara chikero) - Ichi chinhu chinoputika chakapinza chakanyanya kugadzirira uye kurapwa kwepamusoro. Inodhura-inoshanda sezvo inogona kushandiswazve kakawanda.

Aluminium silicate (marasha slag) (6-7 MH) - Ichi ne-chigadzirwa chemagetsi emagetsi emagetsi chidhinha uye chinoraswa. Indasitiri yeoiri neyenzvimbo yengarava inoishandisa mukuvhurika-kuputika, asi ine muchetura kana yakafumurwa kune zvakatipoteredza.

Girazi rakapwanyika grit (5-6 MH) - Girazi grit blasting rinoshandisa recycled glass beads ayo asina chepfu uye akachengeteka. Iyi jecha-blasting media inoshandiswa kubvisa machira uye kusvibiswa kubva panzvimbo. Yakapwanyika girazi grit inogonawo kushandiswa zvinobudirira nemvura.

Soda (2.5 MH) - Bicarbonate soda blasting inoshanda mukubvisa ngura yesimbi zvinyoro nyoro nekuchenesa nzvimbo pasina kukuvadza simbi iri pasi. Sodium bicarbonate (soda yekubikisa) inofambiswa pamhepo yakaderera ye20 psi zvichienzaniswa nejecha rinogara richiputika pa70 kusvika 120 psi.

Simbi grit & pfuti yesimbi (40-65 HRC) - Simbi mabrasives anoshandiswa kune pamusoro pekugadzirira maitiro, akadai sekuchenesa uye etching, nekuda kwekukurumidza kubvisa kwavo kugona.

Staurolite (7 MH) - Iyi blast media ndeye silicate yesimbi uye silica jecha iyo yakanakira kubvisa nzvimbo dzakatetepa nengura kana machira. Inowanzo shandiswa kugadzira simbi, kuvaka shongwe, uye midziyo yakatetepa yekuchengetedza.

Pamusoro pemidhiya yambotaurwa, kune akawanda akawanda aripo. Zvinogoneka kushandisa silicon carbide, inova ndiyo yakaoma abrasive media iripo, uye organic shots, senge walnuts shells uye chibage miguri. Mune dzimwe nyika, jecha richiri kushandiswa nanhasi, asi tsika iyi inopokana sezvo njodzi dzehutano dzisina kunaka.

Shot Media Properties

Imwe neimwe mhando yepfuti midhiya ine idzi 4 mikuru zvivakwa zvinogona kutariswa nevashandisi pakusarudza zvekushandisa:

Chimiro - Angular media ine mitsetse yakapinza, isina kukwana, ichiita kuti ibudirire pakubvisa pende, semuenzaniso. Round media yakapfava kupfuura angular media uye inosiya yakakwenenzverwa pamusoro pekutarisa.

Saizi - Saizi yakajairwa mesh yejecha 20/40, 40/70, uye 60/100. Makuru mesh profiles anoshandiswa kune hukasha application ukuwo madiki mesh profiles ari ekuchenesa kana kupukuta kugadzira chigadzirwa chapera.

Density - Midhiya ine density yakakwira ichava nesimba rakawanda pamusoro pesimbi sezvo ichifambiswa nemhepo inoputika hose pane yakagadziriswa velocity.

Kuoma – Kuoma abrasives inogadzira yakakura kukanganisa pane iyo mbiri nzvimbo ichienzaniswa neakapfava mabrasives. Kuomarara kweMedia nekuda kwekuputira jecha kunowanzoyerwa kuburikidza neMohs kuomarara chiyero (1-10). Mohs inoyera kuoma kwemaminerari uye zvinhu zvekugadzira, zvichiratidza kuramba kwezvicherwa zvakasiyana kuburikidza nekugona kwezvinhu zvakaoma kukwenya zvinhu zvakapfava.