MIM ihuza iki?

Guhitamo ifu ya metallurgie binders,tekinoroji yo gutera inshingenigicuruzwa cyo guhuza no guhuza tekinoloji yububiko bwa plastike, chimie polymer, tekinoroji ya metallurgie nibikoresho bya siyansi. Ifumbire irashobora gukoreshwa mugutera inshinge ubusa hanyuma ikanyura muri Sintering irashobora kubyara byihuse ubucucike bwinshi, busobanutse neza, butatu-buringaniye buringaniye buringaniye. Irashobora kwihuta kandi neza ibitekerezo byubushakashatsi mubicuruzwa bifite imiterere nuburyo bukora, kandi birashobora kubyara ibice byinshi. Nimpinduka nshya mubikorwa byinganda zikora inganda.

Ibiranga inzira:

Ubu buryo bwikoranabuhanga ntabwo bufite ibyiza byifu ya metallurgie isanzwe gusa nkintambwe nkeya, nta kugabanya cyangwa kugabanuka, hamwe ninyungu nyinshi zubukungu, ariko kandi inesha ibitagenda neza gakondoifu ya metallurgienkibikoresho bitaringaniye, imiterere mike yubukanishi, ningorane zo gukora urukuta ruto kandi rwubatswe. Birakwiriye cyane cyane kubyara umusaruro muto, bigoye kandi byihariye byuma. Inzira igenda: binder → kuvanga → inshinge inshinge → gutesha agaciro → gucumura → nyuma yo gutunganya.

Ifu y'ifu y'ifu:

Ingano yubunini bwifu yicyuma ikoreshwa muriInzira ya MIMmuri rusange 0.5 ~ 20μm; mubyukuri, nibyiza ibice, nini nini yubuso bwihariye, byoroshye gukora no gucumura. Ifu gakondo ya metallurgie ikoresha ifu ya coarser irenze 40 mm.

Muburyo bwo gutera inshinge MIM, binder igira uruhare runini cyane, igira uruhare rutaziguye kuvanga, gushushanya inshinge, gutesha agaciro nibindi bikorwa, kandi bigira ingaruka zikomeye kumiterere, gutesha agaciro no kugereranya uburinganire bwimbuto yifu yicyuma ibumba ubusa, ibivanze nibindi, nibindi. Uruhare rwarwo ni uguhuza ibice byifu ya feri, kuburyo ivangavanga riba ryuzuye mumashanyarazi. Kubwibyo, guhitamo binder nurufunguzo rwo gushiraho inshinge zose. Ibisabwa kugirango uhuze:

• umubare muto, ni ukuvuga, kwemeza ko imvange ifite rheologiya nziza mugihe ukoresheje binder nkeya ishoboka;
• Nta reaction, ni ukuvuga nta reaction ya chimique hamwe nifu yicyuma;
• Biroroshye gukuraho, nta bisigara mubicuruzwa.

Ubugingo bwa binder powder metallurgy MIM inzira, kuyongeraho no kuyikuraho nubuhanga bwingenzi bwa MIM, kandi inzira yo gutesha agaciro ikoreshwa muri sisitemu ya binder ni ingingo yingenzi yubushakashatsi murugo no hanze. Binders zikoreshwa muri MIM zirimo sisitemu ya thermoplastique, sisitemu ya thermoset, sisitemu yogukoresha amazi, sisitemu ya gel hamwe na sisitemu idasanzwe, buri kimwe gifite ibyiza byacyo nibibi. Sisitemu ya Thermoplastique ni yo nzira nyamukuru kandi ibanziriza MIM binder, kandi abantu bibanda ku kunoza imiterere ya rheologiya yo kugaburira ibinyampeke, Hakozwe ubushakashatsi bwinshi bugamije kugabanya ihinduka ry’imiterere no kugabanya igihe cyo kwangirika, kandi hateguwe uburyo bwihariye bwihariye harimo na polyacetal binders. Ariko ubushakashatsi niterambere rya binders ntibibura ifu
Kuba hafi, kuvanga ifu na binders, imiterere ya rheologiya na thermodynamic ya binders hamwe nibiryo mubihe bitandukanye, Ingaruka za binders kumanuka no kumitungo yibicuruzwa bitanga amahame rusange nifatizo zifatika zo gutoranya binders, nta gushidikanya ko ifite umwihariko mwiza. Iterambere rya sisitemu nshya kandi ikora neza binder nayo yibandwahoIkoranabuhanga rya MIM.