Isebenza Kanjani I-Powder Metallurgy?

Wake wabhekana nokukhungatheka kokulahlwa kwezinto eziphezulu, ukuguquguquka okulinganiselwe kwedizayini, noma ukungakwazi ukukhiqiza izimo eziyinkimbinkimbi ngomsebenzi wensimbi ovamile? Lezi zinselele zingaphazamisa inqubo yakho yokukhiqiza, zikhuphule izindleko, futhi zikhawulele umkhawulo wakho wokuncintisana.

Faka i-powder metallurgy (PM) - inqubo yokuguqula insimbi ebhekana nalezi zinkinga ngqo. I-PM inikeza indlela emisha yokudala ikhwalithi ephezulu, izingxenye zensimbi eziyinkimbinkimbi ezinodoti omncane, ukunemba okungenakuqhathaniswa, kanye nokusebenza kahle kwezindleko.

Isebenza Kanjani I-Powder Metallurgy?

I-Powder Metallurgy (PM)iyinqubo yokwenza insimbi enemisebenzi eminingi eshintsha izimpushana zensimbi zibe izingxenye eziqinile. Nansi incazelo enemininingwane yokuthi isebenza kanjani:

Ukukhiqizwa Kwempushana

Inqubo iqala ngokukhiqizwa kweizimpushana zensimbi, okungatholakala ngezindlela ezihlukahlukene ezinjengokugaya, ukuchotshozwa, i-atomization, noma ukusabela kwamakhemikhali. Izinsimbi ezivamile ezisetshenziswa ku-PM zifaka insimbi, insimbi, ithusi, ithusi, ne-aluminium. Indlela ngayinye yokukhiqiza impushana ithinta ubukhulu bezinhlayiyana, ukuma, nokuhlanzeka, okubuye kube nomthelela ezintweni zengxenye yokugcina.

Ukuhlanganisa nokuhlanganisa

Okulandelayo, izimpushana zensimbi zixutshwa nezithasiselo, izibophezelo, noma izithambisi ukuze kuzuzwe izici nezakhiwo ezidingekayo. Lesi sinyathelo sibalulekile njengoba sivumela ukwakhiwa kwama-alloys amasha ngokuhlanganisa izinto ezahlukene. Ukuxutshwa okunembile nokuhlanganiswa kwezimpushana kuqinisekisa ukufana nokuvumelana emkhiqizweni wokugcina.

Ukucinana

Impushana exubile ibe isicindezelwa ibe yisimo esifunwayo kusetshenziswa umfutho ophezulu, inqubo eyaziwa ngokuthi ukuhlanganisa. Lokhu kungenziwa ngokusebenzisa izindlela ezifana ne-cold die compaction, ukucindezela kwe-isostatic, noma ukuhlanganisa okushisayo. Izingcindezi zivame ukusuka ku-150 MPa ukuya ku-700 MPa, okuqinisekisa ukuthi izinhlayiya zempushana zihlanganiswe ngokuqinile ndawonye. Lesi sigaba sibalulekile ukuze kuzuzwe ubuqotho besakhiwo kanye nokuminyana okudingekayo engxenyeni.

I-Sintering

Ingxenye ehlanganisiwe ibe isifakwa ekushiseni, lapho ishiselwa ezingeni lokushisa elingaphansi kwendawo yokuncibilika kwensimbi endaweni elawulwayo. Le nqubo ivumela izinhlayiya zensimbi ukuba zihlangane ndawonye, ​​​​zakhe ingxenye eqinile, ehlala njalo. I-Sintering ithuthukisa izakhiwo zemishini yengxenye, njengamandla nobulukhuni, iyenze ifanelekele izinhlelo zokusebenza ezihlukahlukene.

Manje njengoba sesiqonda okuyisisekeloinqubo ye-powder metallurgy, ake sijule emithethweni eyenza lobu buchwepheshe busebenze kangaka. Sizophinde sihlole ubunkimbinkimbi benqubo ye-sintering futhi sigqamise izinzuzo eziyinhloko ze-PM kunezindlela ezivamile zokusebenza ngensimbi.

Uyini Umgomo We-Powder Metallurgy?

Umgomo we-powder metallurgy usekhonweni layo lokudala izingxenye zensimbi ngokulawula okunembile kokubunjwa kanye ne-microstructure. Ngokukhohlisa usayizi, umumo, kanye nokusatshalaliswa kwezimpushana zensimbi, i-PM ingakhiqiza izingxenye ezinezakhiwo ezifanelanisiwe, njengamandla athuthukisiwe, ukumelana nokugqoka, kanye ne-thermal conductivity. Lokhu kunemba kwenza i-PM ilungele ukukhiqiza izimo eziyinkimbinkimbi nemiklamo eyinkimbinkimbi engaba inselele noma engenzeki ngezindlela ezivamile.

Isebenza Kanjani Inqubo Ye-Sintering Ku-Powder Metallurgy?

Ngesikhathi sokuncibilika, impushana yensimbi ehlanganisiwe ishiselwa ezingeni lokushisa elithile elingaphansi kwendawo yayo yokuncibilika kodwa iphakame ngokwanele ukuze ivumele ukusakazeka kwe-athomu. Le nqubo ibangela ukuthi izinhlayiya zensimbi zihlangane ezingeni le-athomu, ziqede i-porosity futhi zikhulise ukuminyana kwengxenye. Umkhathi olawulwayo, njengamagesi angenayo noma i-vacuum, isetshenziselwa ukuvimbela i-oxidation nokungcola. I-Sintering ingacutshungulwa kahle ukuze kuzuzwe izakhiwo ezifiselekayo zemishini, ikwenze kube isinyathelo esibalulekile kunqubo ye-PM.

Yiziphi Izinzuzo Eziyinhloko Zokusebenzisa I-Powder Metallurgy Ngaphezu Kwezindlela Zomdabu Zokusebenza Ngensimbi?

I-powder metallurgy inikeza izinzuzo ezimbalwa ezibalulekile kunezindlela zendabuko zensimbi:

1. Izimo Eziyinkimbinkimbi Nokubekezelelana Okuqinile:I-PM ivumela ukukhiqizwa kwemiklamo eyinkimbinkimbi kanye namajiyometri ayinkimbinkimbi okunzima noma okungenakwenzeka ukufeza ngezindlela zendabuko.
2. Ukusebenza Kwezindleko:I-PM isebenza kahle kakhulu ekukhiqizeni ngobuningi bezingxenye ezincane, ukunciphisa udoti wezinto ezibonakalayo kanye nezindleko zokukhiqiza zizonke.
3. Ukusetshenziswa Kwempahla:Kuze kufike ku-97% wezinto zokuqala ezisetshenziswa emkhiqizweni wokugcina, okwenza i-PM ibe yinqubo yokukhiqiza evumelana nemvelo futhi esimeme.
4. Ama-alloys ahlukile kanye nezinto zokwakha:I-PM ivumela ukudalwa kwezinto eziyingqayizivele nama-alloys angenzeki ngezinye izindlela, ehlinzeka ngezici zokusebenza ezithuthukisiwe.
5. Ukuvumelana nokunemba:Imvelo elawulwayo ye-PM iqinisekisa ukuvumelana okuphezulu nokunemba ezingxenyeni zokugcina, okuholela ekusebenzeni okungcono nokuthembeka.

Isiphetho

Kafushane, i-powder metallurgy iyinqubo yokuguqula insimbi ebhekana nemikhawulo yezindlela zensimbi zendabuko. Ngokuqonda izimiso ze-PM, ubunkimbinkimbi benqubo ye-sintering, kanye nezinzuzo eziningi ezinikezayo, abakhiqizi bangasebenzisa lobu buchwepheshe ukuze bakhiqize izingxenye zensimbi ezisezingeni eliphezulu, ezingabizi kakhulu, nezisimeme. Njengoba izimboni ziqhubeka nokuthuthuka, ukwamukelwa kwezindlela ezintsha ezifana ne-powder metallurgy kuzoba ukhiye ukuze uhlale uncintisana futhi uhlangabezane nezidingo zokukhiqiza zesimanje.