Ko green silicon carbide micropowder inovandudza sei mashandiro ezvishandiso zvekuputira?
Mazana emamita pamusoro, mhepo ine simba yaipfuura nepakati. Old Li akasunga tambo yake yekudzivirira neunyanzvi ndokutanga kuongorora banga guru remhepo riri pamberi pake. Zvigunwe zvake zvakakasharara zvakaratidza mavanga madiki asi anoshungurudza ari kumucheto webanga—nzvimbo inonyanya kukuvadzwa nemhepo nejecha. Akafinyamisa kumeso, achiziva kuti munguva pfupi banga racho raizofanira kudzikiswa kuti rigadzirwe. Kupfeka kwakakosha pamusoro pebanga ndiro jira rekutanga rekudzivirira kubva kumhepo nekukukurwa kwejecha. Uye mukati mekudzivirira uku mune "pfupa rakaoma" rakakosha—upfu hwegirini hwesilicon carbide.
“Iri jecha rakasvibira rakasvibira ringaita serakakosha, asi dai risina, chifukidziro chedu chebanga chaizofanana nepepa!” Old Li aigara achitaura kune mainjiniya matsva. Munyika yakakura yezvinhu zvekuputira, green silicon carbide micropowder inoita basa risingatsiviwi. Harisi chete “musana” wechifukidziro; zvakare chishandiso chinoshandiswa zvakasiyana-siyana chinowedzera kushanda kwaro.
"Mapfupa Akaoma" Anotsigira "Nhoo yeDaimondi"
Kabhidhi yegirini yesiliconUpfu hwe micropowder, muchidimbu, i ultra-pure silicon carbide (SiC) yakakuyiwa zvakanaka kuita upfu hwakakura se micron. Chinhu chayo chinonyanya kuzivikanwa kuoma kwayo! Kuoma kwayo kweMohs kunosvika 9.5, kuchipfuura dhaimani ne cubic boron nitride chete, uye kwakaoma kupfuura simbi yakajairika. Kuiisa muzvipfeko zvakasiyana-siyana zvisingapfeki kwakafanana nekuwedzera zvidimbu zvidiki zvisingaverengeki zvedhaimani mumatope akapfava.
Fungidzira pamusoro pechifukidziro chakarohwa nejecha rinomhanya, marara esimbi, kana mvura inoparadza. Dai chifukidziro chacho chaive resin yakapfava kana simbi, chaizopfekwa uye chabviswa mumasekonzi mashoma. Zvisinei, ne green silicon carbide micropowder yakapararira zvakaenzana mukati me coating matrix, zvidimbu izvi zvakaoma zvinoshanda se "nhovo" diki dzisingaverengeki uye "nhare." Zvinotora uye zvinoparadzira simba rekudonha, zvichideredza zvakanyanya kupera nekurasikirwa kwezvinhu zvekufukidzira pachazvo. Green silicon carbide micropowder, chifukidziro chakasimba, chinogara kwenguva refu, chinoshandiswa pamadziro emukati memapaipi ekuchera, mazino emabhaketi ekuchera, uye zvikamu zvakakosha zvekuboorera mafuta. "Kuoma" uku kunowedzera hupenyu hwekushanda kwezvifukidziro zvakanyanya, zvichideredza zvakanyanya kuwanda uye mutengo wekugadzirisa nekutsiva.
"Simbi Yakasimbiswa" Inosimbisa Muviri
Upfu hwegirini hwesilicon carbide micropowder hunongobatsira chete pakusimba kwesimbi. Hunosimbisawo machira.Zvinhu zvekuputira, kunyanya dzakagadzirwa ne polymer dzakadai se epoxy ne polyurethane, dzinowanzova nesimba shoma, kuomarara, uye kusapisa. Green silicon carbide micropowder inoshanda sesimbi inowedzerwa pakongiri, zvichivandudza zvakanyanya hunhu hwese hwemakemikari ekupenda.
1. Simba uye Modulus: Zvidimbu zvesilicon carbide zvakaoma zvinobatana zvakasimba ne coating matrix, zvichitamisa uye zvichibvisa mitoro zvinobudirira. Kana coating ikakanganiswa kana kukotama, zvidimbu izvi zvinodzivirira matombo kuti asapararire zviri nyore, zvichivandudza zvakanyanya simba re coating, flexural strength, uye elastic modulus (kuoma). Zvakafanana nekuwedzera matombo muvhu rakapfava—zvinoita kuti mugwagwa uve wakasimba uye unodzivirira kumanikidzwa.
2. Kugadzikana kweDimensional uye Kuramba Kupisa:Kabhidhi yegirini yesilicon (GSIC)ine mwero wakaderera wekuwedzera kwekupisa uye kugadzikana kwakanaka kwekupisa (inogona kutsungirira tembiricha dzinopfuura 1,000 degrees Celsius pasina kuora). Kana ikaiswa muzviputiro, inodzivirira zvinobudirira kuchinja, kutsemuka, uye kutotsemuka kunokonzerwa nekuwedzera kusingawirirani uye kudzikira munzvimbo dzinopisa nedzinotonhora. Izvi zvakakosha kune zviputiro zvinoshanda pasi pekuchinja kukuru kwekupisa kana kuti zvinoda kupisa kwakanyanya. Inoita kuti chiputiro chirambe chakasimba uye chinodzivirira kuchinja kwekupisa pasi pekuchinja kwekupisa.
Kuenzana kudiki pakati pe "thermal shield" ne "thermal conductive network"
Hunhu hwekupisa hwemapupa madiki eGSIC akasvibira hwakaongororwawo muindasitiri yekupeta, chikuru chiri zvinodiwa pakushandisa.
Kudzivirira Kupisa: Fungidzira madziro echoto kana chikamu cheinjini chinoda kutsungirira kupisa kwakanyanya.GSICUpfu hudiki hunopararira zvakaenzana mujira rinopisa rinopinza mvura (senge ceramic-based kana special resin-based coating), nepo upfu pachahwo huchipa conductivity yakanaka yekupisa, hunowedzerawo kutenderera kwenzira yekupisa mukati mejira. Hunoshandawo pamwe chete nemaburi kuti hudzivirire kupisa kuti kusapinde nekukurumidza mujira. Izvi zvakafanana nekuvaka madziro akaumbwa nezvidhinha zvidiki zvisingaverengeki zvinodzivirira kupisa (green silicon carbide particles) nemhepo pakati pechoto nenyika yekunze, zvichiwedzera zvakanyanya kudzikamisa kupisa kwejira.
Kupisa Kwakawedzerwa: Kusiyana neizvi, kune machira emagetsi anofukidza zvikamu kana mamwe machira anodzivirira kupisa anoda kupisa nekukurumidza, upfu hwe green silicon carbide hunova "nyanzvi yekufambisa kupisa." Kupisa kwayo kwakanyanya kupfuura kwema polymer mazhinji uye substrates dzesimbi. Kana ikagadzira network inoshanda yekupisa mukati mejira, inoshanda se "migwagwa mikuru" isingaverengeki, ichikurumidza kuendesa kupisa kwemukati pamusoro pejira uye kuibvisa, ichidzivirira kupisa kwakanyanya uye kutadza kushanda. Zvakafanana nekuisa layer ye "thermal paste" yakasanganiswa nezvidimbu zvinofambisa kupisa zvinoshanda zvakanyanya pamusoro pechipu chinopisa.