Iyo abantu bumvise 'muri powder metallurgie', bakunze gushushanya uburyo bwiza, bugezweho - ifu ya kanda, sinter, byakozwe. Ukuri kumaduka ni akajagari, kuzuye ubwumvikane kandi 'biterwa' nigihe impapuro zamakuru zidakubiyemo.
Ikinyuranyo hagati yihariye nukuri
Fata ubucucike. Umuntu wese yiruka kuri theoretical 100% igice cyuzuye. Ariko mubikorwa, kugera ku bucucike bumwe, cyane cyane muri geometrike igoye, ni intambara ihoraho. Urashobora kugira spec ihamagarira 7.2 g / cm3, hanyuma ukayikubita ugereranije. Nyamara, kwambukiranya igice, urahasanga gradients - ibice byoroheje byacumuye bitandukanye na hub nini. Ibi ntabwo ari kunanirwa mubikorwa ifu ya metallurgie kuri buri, ariko biranga shingiro. The tooling design, the fill, the press stroke—they all leave their fingerprint. Nabonye ibice bitambutsa QA mubipimo n'ubucucike buringaniye, gusa birananira mugupima umunaniro kubera umuyoboro utagaragara kuri radiyo. Aho niho imirimo nyayo itangirira.
Ibi bihuza nabakiriya basanzwe. Bohereza igishushanyo kubice byabigenewe barabaza, Urashobora kubikora ukoresheje PM kugirango uzigame ikiguzi? Rimwe na rimwe, yego. Ariko kenshi, igishushanyo gifite inguni zityaye, uburebure bwurukuta rudasanzwe, cyangwa ibintu bisaba gutunganywa kabiri. Agaciro nyako ifu ya metallurgie ni ugushushanya inzira kuva yatangira-ikubiyemo imishinga, guhuza inzibacyuho, no kwerekana ubworoherane inzira ishobora gufata mubyukuri itabihinduye umushinga wo gutunganya. Nintambwe yo kugisha inama ikunze gusimbuka mukihutira kuvuga.
Guhitamo ibikoresho ni akandi gace keze hamwe nuance. Icyuma gisanzwe cyumuringa-umuringa-karubone ni urugo rwakazi, ariko mugihe ukeneye kurwanya ruswa cyangwa imikorere yubushyuhe bwo hejuru, ukandagira mubyuma byabugenewe mbere cyangwa bitagira umwanda. Hano harambuye: hamwe na 316L ifu itagira umwanda, umwuka wicyaha uba ingirakamaro. Akantu gato kamenetse mu itanura, umwuka wa ogisijeni usigaye, kandi ntushobora kubona ibara ryonyine - ubona okiside ya chromium oxyde ikuraho ruswa irwanya intoki. Birasa neza bivuye mu itanura, ariko bizabora. Wiga kwiringira abasesengura ikime kuruta amaso yawe.
Aho PM Ahurira Urunigi runini rwo gukora
Aha niho ubuhanga bwabakora serivisi yuzuye buba ingenzi. Igice ntikivuka mu itanura ryacumuye kandi cyitwa cyuzuye. Fata isuka cyangwa ibikoresho bikozwe ifu ya metallurgie. Irashobora gukenera kurambirwa kugeza kurangije neza, urufunguzo runyeganyega, cyangwa amenyo hasi. Niba gucumura bitagenzuwe kugirango hagabanuke kugoreka, ibyo bikorwa bya kabiri bibahenze, kurya ikiguzi cya mbere cyo kuzigama. Nakoranye nabafatanyabikorwa babona kwishyira hamwe neza. Kurugero, Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), hamwe nimyaka yabo yo gukina no gutunganya, basobanukiwe ninzibacyuho hagati yimikorere. Mugihe urufatiro rwabo ruri mubishushanyo mbonera no gushora imari, amahame yo gucunga imyitwarire yibikoresho hamwe no gutunganya neza icyiciro cya kabiri birashobora kwimurwa. Gusura ikigo nkicyabo, urabona imashini za CNC ziteguye kurangiza hafi-net-shusho-yimiterere, yaba ituruka kumashanyarazi cyangwa compte ya PM. Ubwo bushobozi bwo hasi butegeka uburyo ukoresha inzira yimbere ya PM.
Tuvuze ibya kabiri, kuvura ubushyuhe nyuma yo gucumura ni isi yonyine. Ikibazo cyo gukomera igice cya PM ntabwo ari nko gukomera icyuma gikozwe mu cyuma. The porosity acts as a network of tiny stress concentrators. Niba utitondeye ikirere cya carburizing hamwe nigipimo cyo kuzimya, urashobora guteza imbere imipaka yimbuto ya okiside kumpande ya pore, bigatuma igice cyacika. Twize ibi inzira igoye kumurongo woherejwe. Batsinze igenzura rikomeye ariko batangira kuvunika munsi ya torque. Isesengura ryo kunanirwa ryerekanye iyi okiside ya intergranular. Gukosora? Guhinduranya ubushyuhe bwumuriro hamwe nikirere gikaze cyane kugenzura mugihe cyo kuzamura-gukwirakwiza. Yongeyeho ikiguzi nigihe, ariko byari ibyo cyangwa gusiba porogaramu zose.
Rimwe na rimwe, igisubizo ntabwo ari inzira nyinshi, ahubwo ni ibintu byahinduwe. Twari dufite umushinga wo kwambara cyane mumashini itunganya ibiryo. Icyuma gisanzwe gikomeye cya PM ntabwo cyari gifashe. Twarebye gucengera hamwe n'umuringa, ariko ibyo bintu bigoye. Noneho twibanze ku gukoresha ifu ivanze yashoboraga kwakira amavuta akomeye, nkumubare wagenzuwe wa grafite, winjiye muri matrix. Yashizeho uburyo bwo kwisiga biranga ubuzima bwa serivisi. Ntabwo igitabo cya mbere cyahisemo, ariko byaturutse ku gusobanukirwa ko imikorere - kugabanya guterana amagambo no gutitira - yari ingenzi kuruta kwirukana imbaraga zidasanzwe.
Igikoresho cyo gusya hamwe n'inzitizi za prototype
Ntakintu kizana inyigisho kwisi nkibikoresho. Gushushanya no gutunganya ibipimo bipfa niho igice cyigice kibaho. Ibipimo byapimwe mubihumbi icumi-icumi bya santimetero. Kudahuza gato muburyo bwo guhuza inkoni, hanyuma ukambara kuruhande rumwe, biganisha kubibazo byo gusohora igice no kunanirwa ibikoresho byihuse. Igiciro nigihe cyo kuyobora ibikoresho nimbogamizi nini kuri prototyping muri PM. Ntabwo ari nko gutunganya aho usubiramo gahunda gusa. Ibi bihatira igishushanyo mbonera cyane. Ndibuka prototype ikora kumazu ya sensor aho umukiriya yakomezaga guhinduranya umwobo. Nyuma yo guhindura ibikoresho bya gatatu, igiciro cyarenze umwaka wose uteganijwe kuzigama umusaruro. Twagombaga gusubiza inyuma no kurangiza igishushanyo, dusobanura ko ubuhanga muri PM buza nyuma yuko ibikoresho bigaragaye, atari mugihe cyo kurema.
Iyi nzitizi ndende yo kwinjira kuri prototypes niyo mpamvu benshi bareba ibigo bifite ubushobozi bubangikanye. Niba ikintu kigize imbaraga kidashidikanywaho, birashobora kuba byiza kubigaragaza ukoresheje uburyo bworoshye nko gushora imari cyangwa no gutunganya CNC kuva mububiko kugirango yemeze ifishi, ikwiye, n'imikorere. Igishushanyo kimaze gufungwa, noneho ushora imari muri PM ibikoresho byo kubyara umusaruro. Isosiyete nka QSY, ikora muburyo bwinshi (https://www.tsingtaocnc.com), is positioned to advise on this exact journey. Barashobora gukoresha prototype bakoresheje amaduka yabo cyangwa amaduka ya CNC, hanyuma bagahindura igishushanyo gikuze kuri PM kugirango umusaruro ukorwe, byose mugihe bakomeza guhuzagurika mubintu bifatika no mubipimo bikomeye binyuze mumashini yabo.
Kwambara ibikoresho ntabwo ari umurongo ugaragara; ni buhoro buhoro gutesha agaciro guhindura igice. Urashobora gutangira kubyara ibice hejuru yumurongo wihanganirana, hamwe na kanda zirenga 100.000, zigenda munsi. Inzira nziza ikubiyemo igenzura ryateganijwe no kubungabunga ibikoresho, ariko kandi wiga ibimenyetso - kwiyongera gake kwingufu zo gusohora, burr ntoya kuruhande runaka. Gufata noneho bikiza umusozi wo gutondeka no gusiba nyuma.
Ikirere hamwe no gucumura: Ukuboko kutagaragara
Itanura ryo gucumura ni umutima wibikorwa, kandi ikirere ni amaraso yubuzima. Gukoresha 90/10 ya azote-hydrogen ivanze nibisanzwe, ariko ubuziranenge bufite akamaro. Igicucu cya ogisijeni cyangwa ibirimo ubuhehere, kandi urimo gucumura ubwato bwibisigazwa. Twashyizeho uburyo nyabwo bwo gukurikirana ikirere nyuma yo gutakaza umusaruro wumunsi wose kumacupa yanduye. Amakuru yahumuye amaso - washoboraga kubona aho ikime kinyerera iminota mike mbere yuko inenge igaragara igaragara. Noneho ni igice kitagibwaho ibiganiro.
Ubushyuhe hamwe nigihe ni imbyino. Ibitabo biguha intera, vuga 1120 ° C muminota 30 kubwicyuma runaka. Ariko itanura ryanyu rishyushye, igice cyawe cyuzuza ubukana kumukandara, ndetse nubushuhe bwibidukikije bugira ingaruka kubice byatsi uko byinjiye - byose bihindura iyo ngingo nziza. Utegura resept kuri buri gice cyumuryango, ariko burigihe uhindura. Ese umuvuduko wumukandara ukoraho byihuse? Ibice biri hagati yumukandara bigera kuri temp? Wiga gusoma ibara ryacapwe nimpeta yikigice cyometse kumeza nkuko usoma pyrometero.
Igipimo cyo gukonjesha nikintu kitaganiriweho. Gukonjesha byihuse bishobora gusohora ibice byumuryango byihuse, ariko kubintu bimwe na bimwe bivanze, birashobora gufunga imihangayiko cyangwa bikabuza gushiraho ibyiciro byifuzwa. Rimwe na rimwe, ukenera gukonjesha kugenzurwa, kugabanura itanura. Nibikorwa bya kera hamwe nubucuruzi bufite ireme bukemurwa ntabwo ari nigitabo, ahubwo nigikorwa cyigice mu murima. Niba ibice bigaruka hamwe na micro-crack, ahantu ha mbere tureba ni akarere gakonje.
Gutekereza Kurenga Itangazamakuru
Ubwanyuma, gutsinda ifu ya metallurgie ni bijyanye no kubona igice nka sisitemu muri sisitemu. Ntabwo ari ikintu cyihariye. Nigute ihura nigiti? Nibikanda-bikwiye, kandi niba aribyo, nigute porosity igira ingaruka kubihuza bikwiye? Twagize ikibazo aho PM bushing yuzuye neza yamenetse mugihe cy'iteraniro rikwiye. Ikibazo ntabwo cyari igihuru; cyari igitero gikabije cyo gukanda cyakuwe mubishushanyo mbonera. Tugomba kongera kubara bikwiye dushingiye ku mbaraga nyazo zo kwikuramo ibintu byoroshye, ntabwo ari ubwinshi bwabwo.
Ubu buryo bwa sisitemu nicyo gitandukanya ibice bitanga ibice nabafatanyabikorwa bakora. Nijyanye no kubaza, Iki gice kigamije gukora iki? aho kuba gusa, Turashobora gukora iyi shusho? Harimo gusobanukirwa urwego rwose rutanga, uhereye kumasoko y'ifu (aho guhuzagurika ari umwami) kugeza kubitanga byanyuma. Niyo mpamvu abakora kuva kera, baba bibanda kuri PM, gukina, cyangwa gutunganya, akenshi bafite ubumenyi bwimbitse. Babonye ibyananiranye, bagendeye kubura ibikoresho, kandi bahuza inzira kugirango imirongo ikomeze. That experience, the kind built over 30 years as noted in QSY's operations across casting and machining, informs every step—from material selection and process design to final inspection—ensuring the part doesn't just meet a print, but survives in the real world.
Noneho, iyo ntekereje gukora ifu ya metallurgie, ni bike kubijyanye nigitabo cyibitabo nibindi byinshi bijyanye niyi ntera yegeranijwe yo guhindura ibintu bifatika. Numurima aho uhora uringaniza physics nziza hamwe nukuri kwubukungu bwumusaruro hamwe nibintu bifatika. Ifu niyo ntangiriro.
