Qeexida birta aan la taaban karin
Hawada ama dhexdhexaadinta daxalka kiimikada waxay iska caabin kartaa daxalka birta aluminiumka sare leh, birta aan lahayni waa dusha qurux badan iyo iska caabbinta daxalka wanaagsan, ma aha in la dhejiyo iyo daawaynta kale ee dusha sare, oo waxay ciyaaraan sifooyinka dusha sare ee birta aan la taaban karin, oo loo isticmaalo dhinacyo badan oo ka mid ah nooca birta, sida caadiga ah loo yaqaan ahama.Anigoo ka wakiil ah waxqabadka 13 chromium steel, 18-chromium - birta nikkel iyo birta kale ee alloy sare.
Laga soo bilaabo barta metallographic ee view, sababtoo ah ahama ka kooban chromium iyo dusha sare ee samaynta filim chromium aad u khafiif ah, filimku ka soocay ogsijiinta ee duulaanka birta iska caabinta daxalka.Si loo ilaaliyo iska caabbinta daxalka ee ku jira birta-la'aanta, birta waa inay ka kooban tahay in ka badan 12% chromium.
Taariikhda horumarinta ee ahama
Sababta loo isticmaalo birta iyo birta sida aadka ah loo isticmaalo waa sababta oo ah uruurinta kaydka macdanta birta, kaydinta badan, macdanta dhaqaale iyo dhalaalinta, iyo qabow xoog leh iyo awood qallafsanaan kulul oo birta iyo birta qayb ahaan dhammaatay.Alaabooyinka la dhammeeyey waxay leeyihiin sifooyin farsamo oo heer sare ah (xoog, caag ah iyo iska caabin saameyn ah) iyo qalabka mashiinka (goynta, alxanka, qallafsanaanta qabow, iwm.).Laakiin marka la barbar dhigo walxaha silicic acid, walxaha polymer synthetic iyo qaar ka mid ah biraha aan birta ahayn, faa'iido darrada ugu weyn waa: jawiga ama acid, alkali, milixda iyo xaaladaha kale ee warbaahinta, si sahlan loo lumiyo miisaanka sababtoo ah daxalka, iyo xitaa burbur dhamaystiran.
Noocyada birta aan fiicnayn
Birta aan-dhalatada lahayn waxaa lagu kala saari karaa isticmaalka, isku dhafka kiimikada iyo qaab-dhismeedka biraha.
Birta austenitic-ku waxay ka kooban tahay 18% chromium -8% nikkel, qaddarka curiye kastaa wuu ka duwan yahay, si loo horumariyo noocyada kala duwan ee birta.
Kala soocida halabuurka kiimikaad: ①Cr taxane: taxane ferrite, taxanaha nidaamka Martensite
Kala-soocidda qaab-dhismeedka birta-soo-saarka: (1) birta aan-ka-soo-baxa lahayn ee austenitic, (2) birta aan-ka-soo-baxa lahayn, (3) birta-daxamada martensitic, (4) birta laba-laaban, (5) roobka oo adkeynaya birta-ahaama
Waqtiga boostada: Jan-10-2022