Fasaha - Gabatarwa ga Rufin Zirconia

Zirconia fari ne mai nauyi amorphous foda ko crystal monoclinic, mara wari, mara daɗi, kusan maras narkewa a cikin ruwa.Matsayin narkewa yana kusan 2700 ℃, tare da babban wurin narkewa da wurin tafasa, taurin kai da ƙarfi, a yanayin zafi na al'ada azaman insulator, kuma babban zafin jiki yana da kyawawan kaddarorin kamar wutar lantarki.Bugu da kari, da sinadaran Properties na zirconia ne sosai barga, insoluble a cikin ruwa, hydrochloric acid da tsarma sulfuric acid, yana da kyau thermochemical kwanciyar hankali, high zafin jiki watsin da high zafin jiki ƙarfi da taurin, a lokaci guda yana da kyau inji, thermal, lantarki. kayan gani na gani.

Ana shirya suturar zirconia ta hanyar fesa plasma, wanda shine ɗayan abubuwan da aka saba amfani da su na yumbu.Fasahar fesa Plasma tana amfani da arc ɗin plasma wanda ke gudana ta hanyar kai tsaye azaman tushen zafi, yumbu mai dumama, gami, karafa da sauran kayan zuwa narkakkar ko narkar da ƙasa, da kuma fesa cikin babban sauri zuwa saman kayan aikin da aka riga aka shirya don samar da ingantaccen farfajiyar mannewa. Layer.Plasma spraying don shirya rufin zirconia, babban halayensa sune kamar haka:

Iya iya;

1, high zafin jiki juriya: zirconia narkewa batu ne game da 2700 ℃, sau da yawa amfani da refractory kayan, don haka zirconia shafi yana da kyau high zafin jiki juriya.

Iya iya;

2, sa juriya: yumbura zirconia yana da ƙarfi mafi girma kuma mafi kyawun juriya, ƙarfinsa na Mohs yana kusan 8.5, tare da juriya mai kyau;

3.Thermal barrier shafi: Aikace-aikacen plasma spraying zirconia thermal barrier shafi a kan injuna gas ya sami babban ci gaba.Har zuwa wani lokaci, an yi amfani da shi a cikin ɓangaren turbine na iskar gas, wanda zai iya inganta haɓakar abubuwan zafi mai zafi.

Bakin karfe waya raga tare da Zirconia shafi ana amfani da ko'ina a kan high zafin jiki aiki yanayi.Ƙididdiga na yau da kullum yana da 60mesh / 0.15mm da 30mesh / 0.25mm. Za mu iya yin sutura a bangarorin biyu. Irin wannan nau'in abu kuma zai iya yin sutura a kan ragar karfe na nickel. High tsarki zirconia shafi na iya samar da wani Layer na high zafin jiki juriya. , lalata juriya ga iri-iri na kayan workpiece, musamman tare da aluminum, molybdenum, platinum, rhodium da titanium wadannankarfe kayan bonding more stable.It ne musamman dace da shafi a kan dumama kashi na high zafin jiki makera, wanda zai iya tsawanta ta sabis rayuwa.