Ndeipi menduru inopenya uye inotaridzika chaizvo?

Chii chinonzimenduruiyo inopenya uye inotaridzika zvikuru-yekupedzisira?

Simbi dziri pedyo nemhepo gore rose, uye maitiro anowanzowedzerwa pamusoro pemenduru, mikombe, menduru dzechirangaridzo, nezvimwewo kuti ipe imwe dziviriro yezvigadzirwa zvesimbi.
Dzinotevera ndedze2022 Winter Olympics menduru, idzo dzakaputirwa nejecha pamusoro. Nhasi, ngatiunze maitiro akajairwa ekugadzira jecha.

Sandblasting inzira yekurapa pamusoro pezvishandiso zvebasa. Uchishandisa mhepo yakamanikidzwa sesimba, danda rejet rinomhanya-mhanya rinoumbwa kupfapfaidza zvinhu (copper ore, jecha requartz, jecha redhaimani, jecha resimbi, jecha regungwa) nekumhanya kukuru pamusoro peiyo workpiece kuti irapwe, zvichikonzera shanduko mukati. chitarisiko kana chimiro chenzvimbo yebasa. Nekuda kwekukanganisa uye kucheka mhedzisiro yeabrasives pamusoro peiyo workpiece, pamusoro peiyo workpiece inowana imwe dhigirii yehutsanana uye hwakasiyana roughness, iyo inovandudza ma mechanical properties ye workpiece surface. Naizvozvo, kurwisa kuneta kweiyo workpiece kunovandudzwa, kusungirirwa pakati payo uye kupfeka kunowedzera, kusimba kwejasi kunowedzera, uye kunobatsirawo kuenzana nekushongedza kwejasi.

Raw zvinhu kuti sandblasting kurapwa

Sandblasting: Izwi rehunyanzvi rinoshandiswa mukukanda mari yegoridhe neyesirivha. Pakugadzira mold yegoridhe nesirivheri mari, hukuru hwakasiyana uye mhando dzesimbi jecha zvimedu zvinoshandiswa kupfapfaidza chikamu chepeteni munzvimbo ine chando chakanyanya. Kana uchigadzira mari yegoridhe nesirivheri, chimiro chakanaka chinooneka pane chikamu chemuenzaniso, chichiwedzera pfungwa yehukuru uye kuisa. Sandblasting: (zvichireva kubviswa kwe ngura panzvimbo dzesimbi kana kuputira pamusoro pesimbi) yakakamurwa kuita yakajairwa jecha requartz nejecha requartz rakanatswa: nekuoma kwakanyanya uye kunaka kwekubvisa ngura.

Sandblasting process

Pre processing stage

Iyo pre-kurapwa nhanho yemaitiro inoreva kurapwa kunofanirwa kuitwa pamusoro peiyo workpiece isati yapfapfaidzwa kana kuputirwa nejira rekudzivirira. Hunhu hwekutanga kurapwa mujecha rejecha tekinoroji inokanganisa kunamatira, kutaridzika, kunyorova kwehunyoro, uye kushorwa kwekupotera. Kana basa rekutanga rekurapa risati raitwa zvakanaka, ngura icharamba ichipararira pasi pechifukidzo, zvichiita kuti chifukidzo chibvise zvidimbu. Mushure mekunyatsocheneswa kwepamusoro uye zvakajairika kucheneswa kwakapusa kweiyo workpiece, hupenyu hwekuputira hunogona kufananidzwa ne4-5 nguva uchishandisa nzira yekubuda kwezuva. Kune nzira dzakawanda dzekuchenesa pamusoro, asi dzinowanzogamuchirwa kuchenesa zvinonyungudutsa, kugeza asidi, maturusi emaoko, uye maturusi emaoko.

Process stage

Iyo sandblasting process inoshandisa mhepo yakamanikidzwa sesimba rekugadzira yakakwira-speed jet beam, iyo inopfapfaidza zvinhu uye zvimwe zvinhu pamusoro peiyo workpiece kuti inorapwa nekukurumidza, zvichikonzera shanduko pamusoro peiyo workpiece. Nekuda kwekukanganisa uye kucheka mhedzisiro yeabrasives pane workpiece pamusoro, iyo workpiece yepamusoro inowana imwe dhigirii yehutsanana uye kwakasiyana roughness, inovandudza ma mechanic properties ye workpiece surface.

Zvakanakira zvesandblasting tekinoroji

(1) Kupfekedza uye kubatanidza pre-kurapwa sandblasting inogona kubvisa tsvina yese senge ngura pamusoro peiyo workpiece, uye kumisikidza yakakosha pateni yekutanga (inowanzozivikanwa seyakakasharara nzvimbo) pamusoro. Inogonawo kuwana madhigirii akasiyana ehukasha nekuchinjanisa mabrasives emhando dzakasiyana siyana, senge maturusi anobhururuka abrasive, kuvandudza zvakanyanya kusimba kwekubatanidza kwejasi uye machira. Kana kuita kuti kusungirirwa kwezvikamu zvekunamatira zvakanyanya kusimba uye zvemhando yepamusoro.
（2） Iyo yakaoma pamusoro pekukanda uye kucheneswa uye kukwenenzverwa mushure mekupisa kurapwa kunogona kucheneswa nejecha, iyo inogona kubvisa tsvina yese (yakadai seganda re oxide, mavara emafuta, nezvimwewo) pamusoro pezvakagadzirwa uye kupisa-kupisa workpieces. Iko kupenya kwepamusoro kunogona kuvandudza kutsetseka kwechishandiso, kuburitsa yunifomu uye inopindirana simbi ruvara, zvichiita kuti chitarisiko chiwedzere kunaka uye chinokwezva.
(3) Kucheneswa kweBurr uye kushongedza kwepasi sandblasting kunogona kuchenesa mabhurari madiki pamusoro pezvishandiso zvebasa, kuita kuti nzvimbo yebasa ive yakatsetseka, kubvisa kukuvadza kwemaburrs, uye kugadzirisa giredhi. Uye kuputika kwejecha kunogona kugadzira makona madiki akatenderedzwa pane chinongedzo cheiyo workpiece pamusoro, zvichiita kuti iwedzere kunaka uye chaiyo.
(4) Mushure mekuputika kwejecha, yunifomu uye yakanaka concave convex nzvimbo inogona kugadzirwa pamusoro, ichibvumira mafuta ekuzora kuti achengetwe, nekudaro kuvandudza mamiriro ekuzora uye kuderedza ruzha kuwedzera hupenyu hwebasa.
(5) Kune mamwe akakosha chinangwa workpieces, sandblasting inogona kuwana akasiyana maratidziro kana matte mhedzisiro pakuda. Zvakadai sekukwenenzvera simbi isina simbi yekushanda uye mapurasitiki, kukwenenzvera zvinhu zvejade, matte pamusoro pekugadzirisa fenicha yemapuranga, mapatani epatani egirazi rine chando, uye kukwasharara kwejira remachira.

Pakazara, inoita kuti menduru yegoridhe iratidzike yepamusoro, yakasimba uye yakasimba