Impendulo:
Eli nqaku likhankanya ukuba xa ubushushu bokugaya bungaphantsi kwama-471 ° C, umgangatho kaloliwe ubonakala ngombala wawo oqhelekileyo; phakathi kwe-471-600 ° C, umzila wesitimela ubonisa ukukhanya okutshisa okuphuzi; kwaye phakathi kwe-600-735 ° C, umgangatho wesitimela ubonisa ukutsha okuluhlaza okwesibhakabhaka. Ke ngoko, umntu unokujonga iqondo lokutsha kukaloliwe ngokujonga utshintsho lombala kumphezulu kaloliwe emva kokusila.

Impendulo:
Uhlalutyo lweziphumo ze-EDS kwinqaku lubonisa ukuba ngokunyuka kwamandla amatye okugaya, umxholo wezinto ze-oksijini kumzila wesitimela uyancipha, obonisa ukunciphisa i-oxidation degree of the surface kaloliwe. Oku kuhambelana nentsingiselo yokutshintsha kombala kumphezulu kaloliwe, icebisa ukuba amandla asezantsi amatye okusila akhokelela kwi-oxidation ebukhali ngakumbi.

Impendulo:
Inqaku libonisa ukuba ngexesha lokubunjwa kwe-debris, i-deformation yeplastiki iyenzeka kwaye ubushushu buveliswa ngenxa yokunyanzeliswa kwe-abrasives; ngexesha lokuphuma kwe-debris, umgangatho ophantsi we-debris uxubha ngokubhekiselele kumphezulu wesiphelo se-abrasive kwaye uvelise ukushisa. Ngoko ke, umphumo odibeneyo wokuguqulwa kwe-debris kunye nokushisa okukhukhulayo kukhokelela kwiqondo eliphezulu le-oxidation kwindawo ephantsi ye-debris, okubangelwa umxholo ophezulu wezinto ze-oxygen.

Impendulo:
Iziphumo zohlalutyo lwe-XPS kwinqaku zibonisa ukuba kukho ii-C1s, ii-O1, kunye neencopho ze-Fe2p kumzila kaloliwe emva kokusila, kwaye ipesenti ye-athomu ye-O iyancipha ngeqondo lokutshisa kumzila kaloliwe. Ngokusebenzisa uhlalutyo lwe-XPS, kunokumiselwa ukuba iimveliso eziphambili ze-oxidation kumzila wesitimela ziyi-oxide yensimbi, ngokukodwa i-Fe2O3 kunye ne-FeO, kwaye njengoko iqondo lokutshisa liyancipha, umxholo we-Fe2 + uyanda ngelixa umxholo we-Fe3 + uyancipha.

Impendulo:
Ngokutsho kwenqaku, iipesenteji zendawo eziphakamileyo kwi-spectrum ye-Fe2p encinci ukusuka kuhlalutyo lwe-XPS lubonisa ukuba ukusuka kwi-RGS-10 ukuya kwi-RGS-15, ipesenti yendawo ephakamileyo ye-Fe2 + 2p3 / 2 kunye ne-Fe2 + 2p1 / 2 inyuka ngelixa i-peak area ipesenti ye-Fe3 + 2p3 / 2 kunye ne-Fe3 + 2p1 / 2 iyancipha. Oku kubonisa ukuba njengoko iqondo lokutshisa phezu komzila wesitimela liyancipha, umxholo we-Fe2 + kwimveliso ye-oxidation yomhlaba uyanda, ngelixa umxholo we-Fe3 + uyancipha. Ngoko ke, umntu unokugweba iqondo lokutshiswa komphezulu womzila ukusuka kwi-proportion changes of Fe2 + kunye ne-Fe3 + kwiziphumo zohlalutyo lwe-XPS.

A: Itekhnoloji ye-High-speed Grinding (HSG) bubuchule obuphambili obusetyenziselwa ukugcinwa kololiwe ngesantya esiphezulu. Isebenza ngokutyibilika-rolling iintshukumo ezidityanisiweyo, iqhutywa ngamandla akhubekisayo phakathi kwamavili okusila kunye nomphezulu kaloliwe. Ubuchwephesha buvumela ukususwa kwezinto kunye nokuzilola, ukubonelela ngesantya esiphezulu sokugaya (i-60-80 km / h) kunye nokunciphisa iifestile zokugcina xa kuthelekiswa nokugaya okuqhelekileyo.

A: I-Sliding-Rolling Ratio (SRR), engumlinganiselo wesantya sokutyibilika ukuya kwisantya sokuqengqeleka, ichaphazela kakhulu indlela yokuziphatha yokusila. Njengoko i-angle yoqhagamshelwano kunye nomthwalo wokugaya ukwanda, i-SRR iyanda, ibonakalisa utshintsho kwi-sliding-rolling composite motion of the pairs grinding. Ukutshintsha ukusuka kwintshukumo elawulwayo ukuya kwibhalansi phakathi kokutyibilika kunye nokuqengqeleka kuphucula kakhulu iziphumo zokusila.

A: Ukuphucula i-angle yoqhagamshelwano kuphucula ukusebenza kakuhle kokugaya kunye nomgangatho ophezulu. Uphononongo lubonisa ukuba i-angle yoqhagamshelwano ye-45 ° ivelisa umgangatho ophezulu wokugaya, ngelixa i-angle yoqhagamshelwano ye-60 ° ivelisa umgangatho ophezulu ophezulu. Uburhabaxa bomphezulu (Ra) buyancipha kakhulu njengoko i-engile yoqhagamshelwano ikhula.

A: Iziphumo zokudityaniswa kwe-Thermo-mechanical, kubandakanywa noxinzelelo oluphezulu loqhagamshelwano, amaqondo obushushu aphakamileyo, kunye nokupholisa ngokukhawuleza, okukhokelela kuguquko lwe-metallurgical kunye nokuguqulwa kweplastiki kumzila kaloliwe, okukhokelela ekwakhiweni kwe-brittle white etching layer (WEL). Le WEL ithanda ukophuka phantsi koxinzelelo lwebhayisekile ukusuka kunxibelelwano lwesiporo sikaloliwe. Iindlela ze-HSG zivelisa i-WEL kunye nobukhulu obuphakathi obungaphantsi kwe-8 micrometers, incinci kune-WEL ebangelwa ukugaya okusebenzayo (~ 40 micrometers).

A: Uhlalutyo lwe-debris yokusila lunika ulwazi olongezelelweyo kwiindlela zokususa izinto. Ubutyobo obufana nokuqukuqela kunye nobume bemela, obubonisa ukusebenza kakuhle kokusila, buxhaphake kakhulu kwii-SRR eziphezulu. Ngokwahlukileyo, i-block kunye ne-debris egayiweyo ilawula kwii-angles zoqhagamshelwano ezisezantsi, ezibonisa ukusebenza okungonelanga kokusila. Ubukho be-debrical spherical buyanda kunye nemithwalo yokusila, ebonisa amaqondo okushisa aphezulu okusila.

A: Ukutyibilika kunceda ukususwa kwemathiriyeli kumphezulu kaloliwe, ngelixa ukuqengqeleka kuphucula ukukhutshelwa kobutyobo kunye nokuzilola ngokwakho. Olu lungelelwano oluguquguqukayo luyimfuneko ekufezekiseni ukugaya okusebenzayo kunye nomonakalo omncinci we-thermal.

A: Ngokulungisa iintshukumo ezihlanganisiweyo ze-sliding-rolling, ukusebenza kakuhle kokugaya kunokuphuculwa, umgangatho womphezulu unokwandiswa, kwaye ubomi benkonzo yamavili okugaya bunokwandiswa. Iitshathi zeRadar zibonisa ukuba i-angle yoqhagamshelwano ye-45 ° inika ibhalansi engcono kakhulu yokusebenza kunye nomgangatho, ngelixa i-angle ye-60 ° yoqhagamshelwano ihlala ivelisa iindawo ezigudileyo.

A: Olu phando lugxininisa ukubaluleka kokulinganisa ngokuguquguqukayo ukutyibilika kunye nezindululo eziqengqelekayo ukuphucula ukusebenza kokusila, ukuphucula umgangatho womphezulu, kunye nokwandisa ubomi benkonzo yokusila amavili. Ukupasa kokuqala kokugaya, i-angle ye-45 ° yoqhagamshelwano yandisa ukusebenza kakuhle kokususa izinto, ngelixa i-angle ye-60 ° iqinisekisa umgangatho ophezulu ophezulu kwizigaba zokugqiba.