Uphando ngempembelelo yeBrown Fused Alumina Micropowder kwi-Material Surface Righness
Kumsebenzi wethu, ingakumbi ekunyangweni komphezulu okanye ekucutshungulweni kwezinto, sijongana nesalathisi "soburhabaxa" phantse yonke imihla. Kufana "nophawu lweminwe" yezinto, nto leyo egqiba ngokuthe ngqo ukuba ingaba uqweqwe olulandelayo lunokunamathela na, ukuba iindawo ezinganyangekiyo zigugile kangakanani, kwanesiphumo sokutywina kwendibano. Namhlanje, masingathethi ngezo ngcamango ziphezulu, kodwa hlala phantsi sixoxe njengoogxa bethu malunga nomhlobo wethu omdala esimaziyo—i-brown fused alumina micropowder—nendlela "elawula" ngayo uburhabaxa bomphezulu wezinto.
I. Okokuqala, masiqonde: Yintoni kanye kanye i-brown fused alumina micropowder?
I-alumina exutyiweyo emdaka, ngokufutshane, yiloo nto "siyicoca" sisebenzisa izinto ezifana ne-alumina kunye ne-coke kwisithando sombane se-arc. Ngenxa yokuba iqulethe i-titanium kunye ne-iron oxides, inombala onsundu, yiyo loo nto ibizwa njalo. Inobunzima obuphezulu, iqinile kakuhle, kwaye ifikeleleka ngexabiso eliphantsi, nto leyo eyenza ukuba ibe "yintsika ephambili" ekuqhumeni nasekugayweni kwesanti.
Kwaye igama elithi “micropowder” libalulekile. Libhekisa kumgubo ocolekileyo kakhulu ofunyanwa ngokutyumza nokuhluza i-alumina emdaka exutywe ngenkqubo ekhethekileyo, enobukhulu beesuntswana obuqhele ukuba phakathi kwamakhulu aliqela ukuya kumawaka aliqela eemeshe. Musa ukuyithatha kancinci le mpuphu; ayiseyiyo “imela yokusika iinkuni” erhabaxa, kodwa “imela yokubumba” echanekileyo. Ukuvela kwayo kuvumele i-alumina emdaka exutywe ukuba isuke kwimisebenzi enzima efana nokususa isikali se-oxide eshinyeneyo kwi-castings ukuya kwicandelo lokulungisa ngokuchanekileyo, apho kufuneka umgangatho ophezulu kakhulu womphezulu.
II. "Iyikrola" Njani Ingaphezulu? - Ihlabathi Elinamandla Le-Microscopic
Abantu abaninzi bacinga ukuba ukuqhumisa isanti kukubetha nje umphezulu ngesanti, kwaye okukhona ubetha nzima, kokukhona kuba nzima ngakumbi. Oko kuyinyani, kodwa kuthi thina sifunda ngee-micro-powders, elinye isiqingatha sisisiseko. Impembelelo ye-brown fused alumina micro-powder kwi-surface roughness yinkqubo eyinkimbinkimbi enamandla, endiyishwankathelayo ibe ziziphumo ezintathu eziphambili:
Isiphumo "sokugrumba" (Ukusika okuKhulu): Le yeyona nto iqondakala lula. Amasuntswana e-micro-powder abhabha ngesantya esiphezulu, njengeehammer ezincinci ezingenakubalwa kunye neetshisel, achaphazela umphezulu wezinto. Amasuntswana aqinileyo aya "kuluma" ngokuthe ngqo kwizinto, enze imingxunya emincinci. Eli nqanaba lelona qhubi liphambili lokurhabaxa komphezulu okwanda ngokukhawuleza. Khawuthelekelele umphezulu ogudileyo ogrunjwa ngemingxunya emincinci engenakubalwa; umahluko phakathi kweencochoyi kunye neentlambo uyanda kakhulu, ngokwendalo uphakamisa amaxabiso oburhabaxa (umz., Ra, Rz).
Isiphumo "sokulima" (ukuguqulwa kweplastiki): Oku kunomdla. Xa amasuntswana engawuchaphazeli umphezulu ngokuthe nkqo, kodwa endaweni yoko "awukrwele" nge-engile, asenokungawunqumli ngqo umphezulu. Endaweni yoko, njengokulima, "acinezela" umphezulu emacaleni, enze "umngxuma" ophakanyisiweyo. Le nkqubo ayisusi ngqo umphezulu, kodwa ngokuguqulwa kweplastiki, itshintsha imo yomphezulu, yandisa umahluko phakathi kweencochoyi neentlambo.
Iziphumo "zokudibanisa" kunye "nokudinwa": Phantsi kwempembelelo eqhubekayo yee-microparticles, umphezulu wezinto udlula kwinkqubo "yokucocwa" ngeempembelelo eziphindaphindwayo. Iimpembelelo zokuqala zinokukhulula umphezulu, kodwa iimpembelelo eziqhubekayo ngokwenene "zicutha" umaleko womphezulu, zenze umaleko oxineneyo noqinisiweyo. Kwangaxeshanye, iimpembelelo eziphindaphindwayo zibangela ukudinwa kwisakhiwo somphezulu wezinto, okwenza kube lula ukuba amasuntswana alandelayo asuswe.
Njengoko ubona, nenkqubo elula yokuqhumisa isanti ibandakanya iziphumo ezintathu ngaxeshanye kwaye zisebenzisana kwihlabathi le-microscope: "ukumba," "ukulima," kunye "nokucofa."
III. Izinto Ezintathu Eziphambili Ezichaphazela Iziphumo: Ubungakanani Beenxalenye, Uxinzelelo, kunye ne-Engela
Ngoku ekubeni siyiqonda le migaqo, "siyiyalela" njaniumgubo omncinci we-alumina oxutywe ngombala omdakaukufezekisa uburhabaxa bomphezulu obufunekayo ekusebenzeni ngokwenene? Ixhomekeke kakhulu kwezi zinto zintathu ziphambili:
Into Yokuqala: Ubungakanani beParticles (Ingaba umgubo ufanele ube rhabaxa kangakanani?)
Le yeyona parameter ibalulekileyo. Ngamafutshane, phantsi kweemeko ezifanayo, okukhona amasuntswana eqokobhe ngakumbi, kokukhona ixabiso lobungakanani bomphezulu liphezulu. Ukusebenzisa umgubo oqokobhe one-80-mesh kuya kuvelisa umphezulu oqokobhe kakhulu ngemivumbo embalwa; kodwa ukuba usebenzisa i-W40 okanye i-micropowder ecolekileyo, umphezulu ophumayo uya kuba bushelelezi kakhulu kwaye ube nemvakalelo entle. Oku kufana nokugquma umthi nge-sandpaper eqokobhe ngakumbi kune-sandpaper ecolekileyo—iziphumo zahlukile kakhulu. Ke ngoko, ukufumana ubungqingqwa bomphezulu obuphantsi, ukukhetha umgubo ocolekileyo linyathelo lokuqala.
Into yesibini ebalulekileyo: Uxinzelelo lwesifutho (Mangakanani amandla?)
Uxinzelelo ngamandla anikwa amasuntswana. Okukhona uxinzelelo lukhulu, kokukhona amasuntswana ebhabha ngokukhawuleza, kokukhona amandla e-kinetic angakumbi, kwaye kokukhona isiphumo "sokumba" kunye "nokulima" sinamandla ngakumbi, nto leyo ebangela uburhabaxa obukhulu. Nangona kunjalo, kukho ingxaki: uxinzelelo oluphezulu alusoloko lungcono. Uxinzelelo olugqithisileyo lunokukhokelela ekusikeni kakhulu, lude lonakalise ukuchaneka kobukhulu bomsebenzi, okanye lude lwaphule izinto ezibuthathaka. Amava ethu kukuba, ngelixa sihlangabezana neemfuno zokucoca noburhabaxa, kungcono ukusebenzisa uxinzelelo oluphantsi kangangoko—"sebenzisa intsimbi engcono apho ibalulekileyo."
Into yesithathu ebalulekileyo: I-engile yokutshiza (Ivela kweliphi icala?)
Abantu abaninzi abayinaki le parameter. Uphando lubonisa ukuba xa i-engile yokutshiza iphakathi kwama-70° nama-90° (phantse i-perpendicular), ukwanda koburhabaxa kubaluleke kakhulu kuba isiphumo "sokumba" siyaqhubeka. Xa i-engile iba ncinci (umz., ama-30°-45°), isiphumo "sokulima" siba sobala ngakumbi, nto leyo ebangela iprofayili eyahlukileyo yoburhabaxa. Ukuba sifuna ukucoca umphezulu kodwa singafuni ukuba ube rhabaxa kakhulu, ngamanye amaxesha sisebenzisa i-engile encinci ukuze sifumane ulungelelwano phakathi kokucoca kunye noburhabaxa.
IV. "Iimfihlo" kunye nokucamngca ngendlela esetyenziswa ngayo
Ithiyori iyodwa ayanelanga; zininzi “iimfihlo” ezifumaneka kumsebenzi wokwenyani.
Umzekelo, "ubushushu" bento yokusebenza (iimpawu ezisisiseko zezinto) kubalulekile. Ukusebenzisa iiparameter ezifanayo ukuchwetheza intsimbi ecinyiweyo enobunzima obuphezulu xa kuthelekiswa ne-aluminium ethambileyo kuya kuvelisa iziphumo ezahlukeneyo ngokupheleleyo. Izinto ezithambileyo zichaphazeleka lula kukuguqulwa kweplastiki, zivelisa "imingxunya" enzulu nebanzi kwaye ivaleke lula; izinto eziqinileyo zinokwenzeka ukuba ziqhekeke kancinci, zenze imingxunya emininzi.
Omnye umzekelo "bubude bexesha" lomgubo omncinci.Umgubo omncinci we-alumina oxutywe ngombala omdakaiya kubola ize iqhekeke ngokuhamba kwexesha. Ibhetshi entsha yepowder inobukhulu obufanayo besuntswana, imiphetho ebukhali, kunye namandla okusika aqinileyo, nto leyo evelisa uburhabaxa obufanayo nobukhulu. Nangona kunjalo, ipowder esetyenzisiweyo, enemiphetho ejikelezileyo kunye nobukhulu besuntswana obuncinci, iba "ndala kwaye igugile," kunye namandla okusika ancitshisiweyo, nto leyo enokubangela uburhabaxa obuncinci nobufanayo, obufanelekileyo ekugqityweni "kwesatin" kumphezulu rhoqo. Konke kuxhomekeke kwiimfuno zakho zenkqubo.
Ngoko ke, ukufunda isiphumoumgubo omncinci we-alumina oxutywe ngombala omdakaUkurhabaxa komphezulu akuyonto nje yokujonga izinto kunye nokusebenza ngokufanelekileyo. Bubugcisa bokulawula ngokuchanekileyo kwihlabathi le-microscope. Sifanele sibe njengogqirha wezonyango waseTshayina onamava, siqonde ngobuchule iimpawu kunye neendlela "zamayeza ezonyango" anjenge "amasuntswana, uxinzelelo, kunye ne-engile," size emva koko sidibanise oku "nomgaqo" wezinto zokusebenza, ukuze sinike "iyeza" elifanelekileyo kwaye sifezekise ukurhabaxa komphezulu okugqibeleleyo.