Kudzora ngura yesimbi isina tsvina pakati pegranular, 304 simbi isina tsvina, 304 ngura yesimbi isina tsvina uye ngura musimbi isina tsvina pakati pegranular mu10%, zvichaita kuti kunamira kwetsanga kudzikire, kana paine kushushikana, kuve nyore kwazvo kutsemuka, kutopwanyika, uye kuvanzwa, kusingaonekwe kubva muchimiro chayo. Inokonzerwawo nezvimwe zvikonzero zvikuru zvengura. Kuora kwesimbi isina tsvina mukati megranular kunokonzerwa nehurombo kunonyanya kukonzerwa nemiganhu yezviyo Cr, Cr uye c easy form chemical compounds, iyo Cr content.
1, kuumbwa kwemakemikari uye chimiro
(1) Zviri mukati meC
Huremu hwesimbi hunokonzerwa nekuora kwesimbi isina tsvina inonzi austenitic ndiyo inonyanya kukosha. Kune rumwe rutivi, dzora zvakanyanya huremu hwekabhoni musimbi yesimbi uye mutsvimbo yekuwelda pa0.08%, wedzera zvinhu zvinosimbisa Ti, Nb, hukama hwakasimba ne c, kabhoni isati yasungwa neCr, zvichigadzira compound yakagadzikana.
(2) chimiro chezvikamu zviviri
Maumbirwo ezvikamu zviviri achawedzera zvikuru kugona kwekudzivirira ngura pakati pegranular. Kune rumwe rutivi, zvinhu zvinoumba ferrite zvakabatana, zvakaita sechromium, Silicon, aruminiyamu, molybdenum, weld formation yezvikamu zviviri, uye pane imwe ferrite yakasarudzwa, zvinhu zvakawanda zvekushongedza zvinobatanidzwa.
2, tekinoroji yekunamira
(1) tembiricha iri pakati pe450 ~ 850 ℃, kunyanya pa650 ° C ndiyo inonyanya kugadzirwa munzvimbo yekupisa ine njodzi yengura pakati pegranular (inozivikanwawo senzvimbo inonzwa tembiricha). Kubatanidza simbi isina ngura, ma welds anogona kutorwa pasi pe laminate, kana zvakananga mumvura yekumashure yekutonhodza weld, kuti itonhore nekukurumidza, zvichideredza nguva mu tembiricha, matanho anoshanda ekuvandudza kuramba kwengura kwemajoini.
(2) kuwedzera kwesimba remuchina wekusonerera, kuchaita kuti simbi isingatsvinda irambe ichingopwanyika. Munguva yekusonerera, uchishandisa nzira yekudzikisa magetsi, kumhanya kwemagetsi, nzira yekudzikisa kupisa, uye kuderedza kupisa. Kupisa kushoma, nekudzivirira kupisa nekukurumidza kudzivirira ngura yenzvimbo yakanganiswa nekupisa pakati pegranular.
Nguva yekutumira: Kurume-12-2018