Isinyithi somgubo (I-powder metallurgy, ebizwa ngokuba yi-PM) bubuchwepheshe be-metallurgical apho umgubo wesinyithi (okanye umxube womgubo wesinyithi kunye nomgubo ongeyonsimbi) usetyenziswa njengezinto eziluhlaza ukwenza iimveliso zesinyithi okanye izinto ngokwenza, ukunyibilikisa okanye ukwenza izinto ezishushu. Inkqubo yokuvelisa i-powder metallurgy ifana nenkqubo yokuvelisa iimveliso ze-ceramic, ngoko ke abantu badla ngokubiza indlela ye-powder metallurgy ngokuthi "indlela ye-cermet".
Ngophuhliso olukhawulezileyo lwazo zonke iinkalo zobomi, iimfuno ezahlukeneyo ezifana noyilo olukhaphukhaphu noluncinci, iindawo ezininzi ziya zisiba nzima ngakumbi, nto leyo ebangela ukuba inkqubo yokubumba i-powder metallurgy ijongane nemingeni engakumbi.
Njengoko inani le-PM lisanda, iimfuno zenkqubo ziya kuba nzima ngakumbi. Njengezixhobo ezibalulekileyo kumgca wokuvelisa inxalenye ye-powder metallurgy, i-powder forming hydraulic press imisela umgangatho we-powder compact kwaye ithintela uphuhliso lweshishini le-powder metallurgy eTshayina. . I-powder press esebenza kakuhle yimveliso ye-hydraulic press eyenza i-powder esekwe kwitekhnoloji ye-electro-hydraulic ratio, kodwa itekhnoloji yayo ikwimeko yokutshixwa.
Okwangoku, izityalo ezinkulu zemveliso ye-powder metallurgy ziqalise izixhobo eziphambili zokwenza i-powder kunye neendlela zemveliso ezivela kwamanye amazwe, kodwa intshayelelo yodwa ayinakuyisombulula ingxaki ngokusisiseko. Ke ngoko, uphuhliso oluzimeleyo lwezixhobo zokwenza i-powder zobugcisa obuphezulu lukwayindlela enkulu yophuhliso kwishishini le-powder.
Inkqubo yokwenza i-powder metallurgy
Ukubumba linyathelo elibalulekileyo kwinkqubo yokunyibilikisa isinyithi somgubo. Injongo yokubumba kukuvelisa i-compact enobume obuthile, ubungakanani, uxinano kunye namandla athile. Ukubumba ngokucinezela yeyona ndlela ilula yokwenza.
Indlela yokubumba ucinezelo inenkqubo elula, isebenza kakuhle kakhulu, kwaye ilungele imveliso ezenzekelayo. Nangona kunjalo, ukusasazwa koxinzelelo lwale ndlela akufani, ngoko ke ubuninzi bomzimba oluhlaza abufani, kwaye ukuqhekeka kuyenzeka, nto leyo ekhokelela ekubonakaleni kweemveliso ezineziphene.
a. Ukufana kokusasazwa kobuninzi be-compact: Ngenxa yokuba umzimba we-powder uhamba kuzo zonke iindlela emva kokuba uxinzelelekile kwi-die, ibangela uxinzelelo olusecaleni oluthe nkqo eludongeni lwe-die. Uxinzelelo olusecaleni lubangela ukungqubana, okuya kubangela ukwehla okukhulu koxinzelelo kwicala lokuphakama kwe-compact.
Amanyathelo okuphucula: 1) Nciphisa ukungqubana, faka ioyile yokuthambisa eludongeni olungaphakathi okanye sebenzisa isikhunta esinodonga olungaphakathi oluthambileyo;
2) Ukucinezela ngeendlela ezimbini kusetyenziswa ukuphucula ukungalingani kokusasazwa koxinano lwee-compacts eziluhlaza;
3) Zama ukunciphisa umlinganiselo wobude nobubanzi xa uyila isikhunta.
b. Ukugcina ubuqotho: ngenxa yokwanda kwe-elastic kwe-mold yabasetyhini ngexesha lenkqubo yokucinezela, xa uxinzelelo lususiwe, i-compact iyathintela ukufinyela kwe-elastic kwe-mold yabasetyhini, kwaye i-compact iphantsi koxinzelelo lwe-radial, nto leyo ebangela ukuba i-compact ifumane uxinzelelo lwe-reverse shear ngexesha lenkqubo yokuxinanisa. Amanye amabala abuthathaka kwi-compact anokutshatyalaliswa phantsi koxinzelelo lwe-shear olukhankanyiweyo apha ngasentla.
Amanyathelo okuphucula: Ngokuphathelele ulwakhiwo, iindawo maziphephe imingxunya ebhityileyo, enzulu nemxinwa, imiphetho ebukhali, iibhosi ezincinci nezincinci kunye nezinye iimilo kangangoko kunokwenzeka.
Ukusuka kula manqaku mabini angentla, inkcazo ecacileyo yempembelelo yento enye kwinkqubo yolawulo lokubumba kumgangatho wemveliso, kodwa kwizicelo ezisebenzayo, izinto ezahlukeneyo ezinefuthe ziyahambelana. Ngexesha lenkqubo yophando, kufunyaniswe ukuba izinto ezichaphazela umgangatho wemveliso ngaxeshanye zezi:
1. Impembelelo yokwenza uxinzelelo kumgangatho we-billet: amandla okucinezela anempembelelo ngqo kuxinano. Ukwehla koxinzelelo olukhoyo kubangela ukuqhekeka nokuqhekeka ngexesha lokucinezela, kwaye kukho imingxunya kwindawo ejongene ne-compact emva kokudilizwa.
2. Isiphumo sokucinezela isantya kumgangatho we-compact: Ngexesha lokuxinana komgubo, isantya sokucinezela sichaphazela ukuphuma komoya kwiimbobo eziphakathi kwee-powders, kwaye sichaphazela ngokuthe ngqo ukufana koxinana oluncinci. Umahluko woxinano lwe-compact mkhulu kakhulu. Kulula ukuvelisa iintanda.
3. Impembelelo yexesha lokubamba kumgangatho we-compact: Ngexesha lenkqubo yokucinezela, kufuneka kubekho ixesha elifanelekileyo lokubamba phantsi koxinzelelo oluphezulu lokucinezela, olunokunyusa kakhulu uxinano lwe-compact.
Izixhobo zokubumba i-powder metallurgy ezizenzekelayo ngokupheleleyo ezisandula ukuphuhliswa yiChengdu Zhengxi Hydraulic Equipment Manufacturing Co., Ltd. ziyilelwe njengesixhobo esitsha sokuqalisa sasekhaya esidibanisa iingenelo zee-mechanical presses kunye nee-CNC servo hydraulic presses.
Isiseko sesixhobo esidityanisiweyo se-mold esidityanisiweyo sohlobo lwetemplate sinokulawula ngokufanelekileyo ukuhambelana kwemveliso kunye nesantya esifanelekileyo semveliso. Ngokusekelwe ekwaneliseni ukucinezelwa koxinzelelo oluqhubekayo, indlela yokucinezelwa kwenkqubo emiselweyo ye-mechanical press yongezwa, engenakusebenza nje kuphela njengomda kodwa ikwasebenza njengendlela yokucinezelwa esisigxina. Ukhuseleko oluphindwe kabini lokucinezelwa nokucinezelwa luphucula kakhulu ukuchaneka kwemveliso kunye nokusebenza kakuhle kwemveliso.
Nks. Serafina
Umnxeba/iiWts/iWechat: 008615102806197
Ixesha lokuthumela: Juni-07-2021
