Ho laola ts'ebetso ea ho sila ea mabili a ho sila ka granularity e tsoakiloeng ea li-abrasives

Ho sila ke mokhoa oa ho etsa mochine oo lebili la ho sila la abrasive (GS, joalokaha ho fanoe ka Fig.1) le sebelisoang ho tlosa lisebelisoa ka lebelo le itseng le potolohang [1]. Lebili la ho sila le entsoe ka li-abrasives, moemeli ea tlamang, li-fillers le li-pores, joalo-joalo, moo, abrasive e phethang karolo ea ho itšeha nakong ea ho sila. Ho tiea, matla, boits'oaro ba fractural, geometry ea abrasive e na le phello e kholo ts'ebetsong ea ho sila (bokhoni ba ho sila, botšepehi ba holim'a mochine o entsoeng ka mochine, joalo-joalo) ea lebili la ho sila [2, 3].

Setšoantšo sa 1.Mabili a tloaelehileng a ho sila a nang le granularity e tsoakiloeng ea li-abrasives.

Matla a zirconia alumina (ZA) ka granularity ea F14 ~ F30 e ile ea lekoa. Likahare tsa abrasive tsa F16 kapa F30 ho GS e lokiselitsoeng li ne li arotsoe ka lihlopha tse hlano ho tloha holimo ho ea tlaase: ultrahigh (UH), phahameng (H), bohareng (M), tlaase (L), le tlaase ka ho fetisisa (EL). Ho ile ha fumaneha hore Weibull e sithabetsang matla a F14, F16 le F30 ea ZA e ne e le 198.5 MPa, 308.0 MPa le 410.6 MPa, ka ho latellana, e leng se bontšang hore matla a ZA a hola ka ho fokotseha ha boholo ba grit ea abrasive. Modulus e kholoanyane ea Weibullme bontšitse phapang e fokolang pakeng tsa likaroloana tse lekiloeng [4-6]. Themboleng bo fokotsehile ka ho fokotseha ha boholo ba grit ea abrasives, ho senola hore phapang pakeng tsa li-abrasives tse lekiloeng e ile ea e-ba kholoanyane ka ho fokotseha ha grit ea abrasive [7, 8]. Kaha boholo ba bokooa ba abrasive bo lula bo le teng, li-abrasives tse nyane li na le bofokoli bo fokolang le matla a phahameng, kahoo li etsa hore li-abrasives tse nyenyane li be thata ho li senya.

Feie.2. Khatello ea maikutlo a Weibulls₀le Weibull modulusmbakeng sa granularities tse fapaneng tsa ZA.

Sebopeho sa abrasive comprehensive wear ea mokhoa o loketseng oa ho sebeletsa o ile oa ntlafatsoa [9], joalokaha ho bontšitsoe setšoantšong sa 3. Tlas'a maemo a loketseng, abrasive e na le tekanyo e phahameng ea tšebeliso 'me GS e bontša ts'ebetso e ntle ea ho sila [3]. Tlas'a mojaro o silang o fanoeng le matla a moemeli ea tlamang, mekhoa e meholo ea ho roala e ile ea fetoloa ho tloha ho attrition wear le micro-facture bakeng sa F16 ho ea ho attrition wear le ho huloa bakeng sa F30 e nang le phapang ea matla a ho senya abrasive [10,11]. The attrition wearing e bakile ho senyeha ha GS le ho itšeha ho bakoang ke ho hula ka ntle ho ka finyella boemo bo leka-lekaneng, kahoo ho phahamisa matla a ho sila haholo [9]. Bakeng sa nts'etsopele e tsoelang pele ea GS, matla a ho senya abrasive, matla a moemeli a tlamang le mojaro oa ho sila, hammoho le mekhoa ea ho apara evolutions ea abrasives, e lokela ho fetoloa le ho laoloa ho ntšetsa pele sekhahla sa tšebeliso ea li-abrasives.

Feie.3.Mokhoa o nepahetseng oa ts'ebeletso ea abrasive

Le hoja ts'ebetso ea ho sila ea GS e susumetsoa ke lintlha tse ngata, tse kang matla a ho senya, matla a ho tlama, moroalo oa ho sila, mekhoa ea ho itšeha, maemo a ho sila, joalo-joalo, lipatlisiso tsa mekhoa ea taolo ea li-granularities tsa motsoako oa li-abrasives li ka fana ka boitsebiso bo bongata mabapi le moralo le tlhahiso ea GS.

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