Kusarudzwa kwepoda metallurgy binders,simbi poda jekiseni kuumba tekinorojindicho chigadzirwa chekubatanidza uye mharadzano yepurasitiki yekuumba tekinoroji, polymer chemistry, poda metallurgy tekinoroji uye simbi zvinhu sainzi. Iyo mold inogona kushandiswa jekiseni kuumba iyo isina chinhu uye kuipfuudza kuburikidza neSintering inogona kukurumidza kuburitsa yakakwirira-density, yakakwirira-chaiyo, matatu-dimensional yakaoma-yakaumbwa zvikamu zvechimiro. Inogona kukurumidza uye nemazvo kugadzira mazano ekugadzira kuita zvigadzirwa zvine mamwe maitiro uye anoshanda maitiro, uye anogona zvakananga kugadzira-mazhinji zvikamu. Iko shanduko nyowani muindasitiri yekugadzira tekinoroji.
Process features:
Iyi tekinoroji tekinoroji haina chete zvakanakira zveyakajairwa simbi yehupfu maitiro senge nhanho shoma, kwete kana kushoma kucheka, uye yakakwirira yehupfumi mabhenefiti, asi zvakare inokunda zvikanganiso zvechinyakare.upfu metallurgy zvigadzirwazvakadai sezvinhu zvisina kuenzana, zvinhu zvakaderera zvemagetsi, uye kuoma mukugadzira masvingo akaonda uye zvivako zvakaoma. Inonyanya kukodzera kugadzirwa kwehuwandu hwezvikamu zviduku, zvakaoma uye zvakakosha zvesimbi. Kuyerera kwemaitiro: binder → kusanganisa → jekiseni kuumba → kudzikisa → sintering → post-kugadzirisa.
Powder metal powder:
Iyo particle size yesimbi poda inoshandiswa muMIM maitirokazhinji 0.5 ~ 20μm; ne theoretically, iyo yakatsetseka zvidimbu, iyo yakakura iyo chaiyo nzvimbo, zvichiita kuti zvive nyore kugadzira uye sinter. Iyo yechinyakare simbi simbi maitiro anoshandisa coarser poda yakakura kupfuura 40μm.
Mu themetal jekiseni rekuumba MIM, binder inoita basa rakakosha zvikuru, inobata zvakananga kusanganiswa, jekiseni rekugadzira, degreasing uye mamwe maitiro, uye ine simba guru pamhando, degreasing uye dimensional kunyatsoita kwesimbi yehupfu jekiseni rekuumba isina chinhu, alloy kuumbwa, nezvimwewo. muchina, ndiko kuti, inova mutakuri wekutyaira kuyerera kwehupfu. Nokudaro, kusarudzwa kwebinder ndiyo kiyi yekuumbwa kwejekiseni rose rehupfu. Zvinodiwa kune binder:
- diki, ndiko kuti, kuve nechokwadi chekuti musanganiswa une rheology iri nani paunenge uchishandisa binder shoma sezvinobvira;
- Hapana kuita, kureva kusaita kemikari nehupfu hwesimbi;
- Zviri nyore kubvisa, hapana zvakasara muchigadzirwa.
Mweya webinder powder metallurgy MIM process, kuwedzera kwayo nekubvisa ndiyo kiyi tekinoroji yeMIM, uye nzira yekubvisa mafuta inoshandiswa mubinder system inyaya yakakosha yekutsvagisa kumba nekune dzimwe nyika. Zvisungo zvinoshandiswa muMIM zvinosanganisira thermoplastic systems, thermoset systems, mvura-soluble systems, gel systems uye masisitimu akakosha, imwe neimwe ine zvayakanakira nezvayakaipira. Thermoplastic binder system ndiyo huru uye inotangira yeMIM binder, uye vanhu vanotarisa pakuvandudza rheological properties yekudyisa tsanga, Tsvakurudzo yakawanda yakaitwa kuderedza deformation yekudzikisa uye kupfupisa nguva yekudzikisa, uye mamwe maajenti anosanganisira polyacetal binders akagadzirwa. Asi kutsvagisa nekuvandudzwa kwemabhaidha kunoshaikwa nehupfu
Kubatana, kusanganiswa kwehupfu nemabhainda, rheological uye thermodynamic zvimiro zvezvisungo uye zvekudya pasi pemamiriro akasiyana siyana,Pesvedzero yezvisungo pa degreasing uye zvigadzirwa zvechigadzirwa zvinopa misimboti yepasirese uye hwaro hwedzidziso yekusarudzwa kwevanosunga, izvo zvisina mubvunzo zvakasiyana Iine chirevo chakanaka. Kuvandudzwa kweiyo itsva uye inoshanda binder system ndiyo inotariswa zvakareTekinoroji yeMIM.
Nguva yekutumira: Jun-23-2022