Tuubooyinka birta ah ee dhumucdiisuna waxay leeyihiin faa'iidooyin badan, sida caabbinta oksaydhka heerkulka sare, caabbinta daxalka xooggan, caagagga wanaagsan, waxqabadka alxanka oo aad u fiican, iwm, waxaana si ballaaran loogu isticmaalaa warshadaha madaniga ah ee kala duwan. Si kastaba ha ahaatee, sababtoo ah adkeysiga hooseeya iyo iska caabbinta yar ee birta, codsigeeda marar badan ayaa xaddidan doona, gaar ahaan deegaanka halkaasoo arrimo badan sida daxalka, xirashada, iyo culeyska culus ay jiraan oo saameeya midba midka kale, nolosha adeegga Walxaha birta aan la taaban karin ayaa si weyn loo gaabin doonaa. Marka, sida loo kordhiyo adkaanta dusha sare ee tuubooyinka birta ah ee dhumuc weyn leh?
Hadda waxaa jira hab lagu kordhinayo adkaanta dusha sare ee tuubooyinka derbiga qaro weyn by ion nitriding si loo hagaajiyo caabbinta xirashada oo sidaas u kordhiyaa nolosheeda adeegga. Si kastaba ha ahaatee, tuubooyinka birta aan fiicnayn ee austenitic laguma xoojin karo isbeddelka wajiga, iyo nitriding ion caadiga ah waxay leedahay heerkul sare oo nitriding ah, kaas oo ka sarreeya 500 ° C. Chromium nitrides waxay ku soo da'i doontaa lakabka nitriding, taasoo ka dhigaysa matrixka birta aan lahayn chromium- sabool ah. Iyadoo adkaanta dusha sare ay si weyn u korodhay, caabbinta daxalka dusha ee tuubada ayaa sidoo kale si aad ah loo wiiqi doonaa, taas oo lumin doonta sifooyinka tuubooyinka birta ah ee dhumuc weyn leh.
Isticmaalka qalabka DC pulse ion nitriding si loogu daaweeyo tuubooyinka birta austenitic leh heerkulka hooseeya ee nitriding ion waxay kor u qaadi kartaa adkaanta dusha sare ee tuubooyinka birta ee dhumucdiisuna waxay ilaalinaysaa caabbinta daxalka oo aan isbeddelin, taas oo kordhinaysa caabbinta xirashada. Marka la barbar dhigo shaybaarada nitriding ion ee lagu daweeyay heerkulka caadiga ah, isbarbardhigga xogta sidoo kale waa mid cad.
Tijaabada waxaa lagu sameeyay foornada nitriding 30kW DC pulse ion. Halbeegyada sahayda korantada garaaca wadnaha DC waa danab la hagaajin karo 0-1000V, wareegga waajibaadka la hagaajin karo 15% -85%, iyo inta jeer ee 1kHz. Habka cabbiraadda heerkulka waxaa lagu cabbiraa heerkulbeegga infrared IT-8. Qalabka muunadku waa austenitic 316 dhumuc weyn oo bir ah oo bir ah, iyo ka kooban yahay kiimiko waa 0.06 carbon, 19.23 chromium, 11.26 nikkel, 2.67 molybdenum, 1.86 manganese, inta soo hartayna waa bir. Cabbirka muunadku waa Φ24mm × 10mm. Tijaabada ka hor, shaybaarada waxaa lagu dahaadhay xaashi biyo ah si looga saaro wasakhda saliidda, ka dibna la nadiifiyo oo la qalajiyo aalkolo, ka dibna waxaa la dhex dhigayaa badhanka cathode diskka waxaana la faaruqiyay meel ka hooseysa 50Pa.
Microhardness lakabka nitrided xitaa wuxuu gaari karaa in ka badan 1150HV marka ion nitriding lagu sameeyo austenitic 316 tuubooyinka birta alxanka ah ee heerkulka hooseeya iyo heerkulka caadiga ah ee nitriding. Lakabka nitrided ee lagu helay nitriding ion heerkulka hooseeya waa mid khafiif ah oo leh qallafsanaan adag. Ka dib markii heerkulka hooseeya ee ion nitriding, caabbinta xirashada ee birta austenitic waxaa lagu kordhin karaa 4-5 jeer, caabbinta daxalka ayaa weli ah mid aan isbeddelin. Inkasta oo caabbinta xirashada lagu wanaajin karo 4-5 jeer by ion nitriding heerkulka nitriding caadiga ah, caabbinta daxalka ee austenitic ahama birta qaro weyn tuubooyinka qaro weyn ayaa la dhimi doonaa ilaa xad sababtoo ah nitrides chromium ayaa ku soo daadi doona dusha sare.
Waqtiga boostada: Agoosto-23-2024