Gukora Iterambere Ryambere: Gutera inshinge za Ceramic Kwiyongera

Gukoresha tekinoroji yububiko bwa ceramic

Hamwe niterambere ryihuse ryikoranabuhanga rya CIM, ibicuruzwa byo guteramo ceramic byakoreshejwe mubice bimwe

1. Kimwe cya gatatu cyibibazo byo mu Busuwisi byakozwe hifashishijwe ikoranabuhanga rya ceramic powder, kandi ibikoresho ni zirconia, ibikoresho bya ceramic bitigera byambara.
2. Ubuyapani bwakoze inganda za zirconia fibre ihuza umwobo w'imbere wa 0.015mm.
3. Reta zunzubumwe zamerika zabonye umusaruro wimisatsi ya zirconia no gukoresha ibikoresho bya nitride ya silicon muri moteri.
4. Yateje imbere umurongo wa ceramic ya mixeur ya helix ivanze na ceramic nozzles hamwe nududodo tubiri muri Laboratoire ya Leta nkuru ya Powder Metallurgie ya kaminuza nkuru y’ikoranabuhanga yo mu majyepfo y’Ubushinwa. Sensor ya zirconia yatunganijwe neza nishuri ryibikoresho byubumenyi nubuhanga bya kaminuza ya Huazhong yubumenyi n’ikoranabuhanga hakoreshejwe ikoranabuhanga rya CIM.

Igikorwa cyibanze cyerekana imbonerahamwe ya ceramic inshinge

Ifu, binder, ikwirakwiza, amavuta - kuvanga - gutesha agaciro granulation - inshinge - gutesha agaciro - gucumura - Kugerageza ibicuruzwa

Ceramic Injection molding tekinoroji kubutaka bwa ceramic

1. Ifu igomba gutegurwa byumwihariko kumipaka ntarengwa yuzuza ubwinshi nigiciro gito;
2. Ifu ntabwo yegeranya;
3. Imiterere y'ifu ifatika cyane;
4. Hariho ubushyamirane buhagije hagati yifu kugirango wirinde guhinduka cyangwa gusenyuka kwa bilet nyuma yo gukuraho. Mu bihe byinshi, Inguni karemano igomba kuba hejuru ya 55 °;
5. Kugirango byorohereze gucumura byihuse, bigomba kugira ingano ntoya igereranije, muri rusange munsi ya 1 mm;
6. Ifu ubwayo ni yuzuye, idafite imyenge y'imbere;
7. Ubuso bwa poro burasukuye kandi ntibukora imiti hamwe na binder.

Sisitemu yo gutera inshinge

Guhambira muburyo bwo gutera inshinge bifite imirimo ibiri yibanze.

Mbere ya byose, ifu irashobora kuvangwa neza murwego rwo gutera inshinge, kandi ifu irashobora kugira amazi meza nyuma yo gushyushya;

Icya kabiri, binder irashobora kugumana imiterere yumubiri nyuma yo guterwa inshinge no mugihe cyo kwangirika.

Turashobora kuvuga ko binder arirwo rufunguzo nurufunguzo muburyo bwo gutekesha ifu ya porojeri, kandi buri terambere niterambere ryibikorwa byo gutera inshinge biherekejwe no kuvuka kwa sisitemu nshya. Muri CIM, kubera ko ingano yifu ya poro ari ntoya ugereranije no guterwa inshinge yifu yicyuma, amazi ya poro ubwayo arakennye, kandi ikinyuranyo hagati yifu na binder nyuma yo kuvanga ni gito cyane, bikaviramo kwangirika bigoye, ibyo bikaba bitanga ibyifuzo byinshi bisabwa kubihuza. Kubwibyo, nkibikoresho byo guteramo ceramic, guhuza ibi bikurikira:

1. Kugenda neza. Ubukonje bwo guterwa inshinge bugomba kuba butagereranywa, ubukonje buri hejuru cyane, ifu ntishobora gukwirakwizwa neza muri binder, ntabwo bigoye kuvanga gusa, ariko kandi biragoye kubona fagitire ivanze imwe, byoroshye kubyara inenge; Ubukonje buke cyane buzatera gusiba ifu ya ceramic na binder, kandi viscosity ntishobora guhindagurika cyane hamwe nubushyuhe, bitabaye ibyo inenge zikabaho.

2. Binder igomba kuba ishobora guhanagura ifu neza kandi ikagira ingaruka nziza yo gufata ifu. Mubisanzwe kugirango tunonosore imikorere yubushuhe bwa binder, ibintu bimwe bikora hejuru bigomba kongerwamo kugirango bigabanye ububobere bwuruvange kandi byongere amazi. Muri icyo gihe, binder ihanagura ibice kugirango itange imbaraga za capillary zo kwamamaza adsorb no kurinda umubiri guhinduka. Kugirango umenye neza ko fagitire ihagaze, ifu igomba kuba inert ugereranije na binder.

3. Binder igizwe nibintu byinshi bigize ibinyabuzima. Biragoye ko ingirabuzimafatizo imwe yujuje ibyangombwa bisabwa, kandi nyuma yimwe mubice bigabanutse, harakorwa porotike ifunguye, ifasha mukwirengagiza binder isigaye. Imyitozo yerekanye ko igabanuka ryikigero cyibice byinshi bihuza byihuta cyane kurenza icyahujwe kimwe kandi inenge ni nke cyane. Birumvikana, polymers organic hamwe nibintu byinshi bihuza birahuza.

4. Binder ifite ubushyuhe bwinshi nubushyuhe bwo kwagura ubushyuhe buke. Ibi ntibirinda gusa inenge ziterwa nubushyuhe bwumuriro, ahubwo binagabanya ihungabana ryumuriro kumubiri kandi bigabanya inenge.

5. Byongeye kandi, binder igomba kandi kuba idafite uburozi, idahumanya, idahindagurika, iyinjizwa ridafite ubuhehere, kandi imikorere yubushyuhe bwa cycle ntigihinduka.

Kugereranya ibyiza nibibi bya sisitemu zitandukanye

Bimwe mubisanzwe bihuza muri CIM bigizwe

Mumyaka yashize, binders zisanzwe zikoreshwa muburyo butandukanye bwo gutera inshinge za ceramic. Nkuko bigaragara kumeza, binders zikoreshwa muri CIM ahanini ni sisitemu ya thermoplastique igizwe nibice byinshi.

Gutegura imvange ya CIM

Uruvange ni uruvange rwifu na binder. Muburyo bwose bwo guterwa inshinge, gutegura ifu na polymer binder bivanze ni imwe muntambwe zingenzi. Inzira isaba kuvanga kugira ubutinganyi bwiza, imiterere myiza ya rheologiya nibiranga gutesha agaciro.

Kuri tekinoroji yatoranijwe yo kuvanga, uruhare nyamukuru nuguhuza igipimo, ubushyuhe nigihe. Ariko, niba kuvanga umuvuduko nubushyuhe biri hasi cyane, nubwo igihe cyo kuvanga kidashobora kuba kimwe.

Ikibazo cya rheologiya ya PIM ahanini ni ugusuzuma no kuranga ubwiza bwimvange.

Gutera inshinge

Intego yo guterwa inshinge nugushaka umubiri wa CIM utagira inenge hamwe nuduce duto duto muburyo bwifuzwa. Uruvange rwateguwe rushobora guterwa muri mashini isanzwe yo gutera inshinge, cyangwa irashobora guterwa mumashini idasanzwe yo guteramo ifu. Ibipimo byububiko mubisanzwe birimo ubushyuhe bwo gutera inshinge, umuvuduko wo gutera inshinge, umuvuduko wo gutera inshinge, igitutu gifata umuvuduko, umuvuduko ufata igihe cyo gukonja hamwe nubushyuhe bwubushyuhe. Niba ibipimo byimikorere bitagenzuwe neza, biroroshye kubyara inenge zitandukanye. Inenge zatewe inshinge ntizishobora kuvaho mubikorwa byakurikiyeho, bityo rero iki gikorwa kigomba kugenzurwa cyane, kikaba ari ingenzi mu kuzamura umusaruro w’ibicuruzwa no gukoresha ibikoresho.

Ibice byo gutera inshinge Zirconiya

Kugenzura inenge muburyo bwo gutera inshinge

Kugenzura inenge muburyo bwo gutera inshinge birashobora gutekerezwa kubintu bibiri: kuruhande rumwe, isano iri hagati yubushyuhe bwubushyuhe, umuvuduko nigihe cyashyizweho; Ikindi kintu ni urujya n'uruza rw'ibiryo mu cyuho cyuzuye. Kuberako ibicuruzwa byinshi bya CIM ari ibice bito bifite imiterere igoye kandi bisabwa neza, gutembera kwivanga mumyanya yububiko birimo ibibazo byububiko, harimo aho icyambu kigaburira, uburebure bwumuyoboro utemba, aho umwobo uva, nibindi, bisaba gusobanukirwa neza ibipimo byimitungo ivanze, ubushyuhe mukubyimba hamwe no gukwirakwiza ibibazo bisigaye.

Ceramic sintering

Inzira yo gucumura ni ukugenzura cyane cyane ingano yubunini bwimbuto zubutaka, kubona ibikoresho byicyiciro gikenewe, no kwemeza ubwinshi bwicyaha hamwe numubiri wuzuye ceramic.

Uburyo bwo gucumura ibintu bibiri byingenzi: gucumura ubushyuhe nigihe cyo gucumura

Uburyo bushya bwo gutera inshinge

Ifu ya co-inshinge (PCM) niterambere rishya ryo gushiramo ifu.Ubu buhanga bukoresha imashini itera inshinge ebyiri kugirango ikurikirane inshinge ebyiri zitandukanye zivanze nifu ivanze mu cyuho. Ubu buryo butuma ubuvuzi bwo hejuru bukorwa mugihe cyo guterwa inshinge, kuruta nyuma yuko ibicuruzwa byarangiye byateguwe. Gutegura no gutunganya ibicuruzwa birashobora kurangizwa muburyo bumwe, ubwabyo birashimishije cyane muburyo bwa tekiniki nubukungu.

Tekinoroji yo gutera inshinge nkeya, ukurikije uburyo bwo gutera inshinge ubwayo, uburyo bwo gutera inshinge nkeya kuruta gutera inshinge nyinshi.Kugaburira ibishishwa rusange hagati ya 1.5-4.0Pa.s birashobora kurangizwa numwuka uhumeka 0.8Mpa, ushobora gukuraho sisitemu ya hydraulic, piston yo gutera no guhuza inkoni mubikoresho gakondo. Birashobora kugaragara ko ibyiza byo gutera inshinge nkeya ari progaramu yumuvuduko muke mugutera inshinge icyatsi kibisi, kwambara gake, kugaburira udukoni, kwirinda umwanda wo kugaburira biterwa no kwambara piston yatewe no kudatandukanya ifu / binder. Mubyongeyeho, hari ingufu nke zikoreshwa, ubunini bwibikoresho bito, imiterere yoroshye nigiciro gito.