Kana vanhu vazhinji vakanzwa 'zvigadzirwa zvakagadzirwa nehupfu simbi', vanobva vangofunga nezvemagiya madiki, akaoma kunzwisisa akaiswa kana mabearings ekuzvizodza nawo. Izvo hazvina kuipa, asi zvakangofanana nekutsanangura mota chete nema spark plugs. Chokwadi chakanyanya kunyura muhupenyu hwemazuva ese emaindasitiri kupfuura izvozvo. Pane fungidziro yakajairika, kunyanya kubva kune avo vanoshanda zvakanyanya nesimbi yakanyungudutswa, senge mune yedu yakavakirwa, kuti zvikamu zvePM zvinongori zvakachipa, zvakaderera-kuita imwe nzira. Ndapedza makumi emakore ndiri kuQingdao Qiangsenyuan Technology Co., Ltd. (QSY) padhuze negoko rekuumbwa nekukanda mari, ndaimbogovana zvishoma zvekurerekera ikoko. Kwaingove kuburikidza nekubatana kwakananga nevashambadziri vePM uye kuyedza kutsiva zvimwe zvinhu izvo zvandakanyatsobata paipenya poda metallurgy-uye pazvisingaite.
Mamiriro eBhizinesi: Ipo PM Inokodzera
PaQSY, nyika yedu isimbi yemvura-kudurura, kuomesa, kugadzira. Saka, apo mutengi we hydraulic valve assembly akaomerera pakushandisa PM-yakagadzirwa valve spool pane yedu CNC-machineed version kubva kubhawa stock, ndakanga ndisina chokwadi. Kudhirowa kwacho kwaida kuti pave nechimiro chakaoma chemukati chiteshi icho chaive chinotyisa kumuchina. Mutengesi wePM akaendesa pedyo-net-shape chikamu. Density uye kupera kwepamusoro ndizvo zvaive zvinonetsa. Yakashanda, asi chiyero chekumanikidza chaifanira kudzikiswa zvishoma kana ichienzaniswa neyakagadzirwa yakaenzana. Iko kutengeserana-kuomerwa kwekutengesa kudiki mune yekupedzisira michina zvivakwa-ndiyo calculus yezuva nezuva mumunda uyu.
Apa ndipo panoitika sarudzo chaiyo. Haisi yekuti ndeipi nzira iri 'nani' mune vacuum. Kune yakakwira-stress turbine blade mune nickel-based alloy, investment casting ndiyo nhare yedu. Asi kune yakakwira-vhoriyamu, yakaoma-yakaita cam mune ferrous alloy, uko kushandiswa kwezvinhu kubva mukugadzira kungave kuri pasi pe40%, poda metallurgy inotanga kuimba rwiyo rwayo rwesiren. Iyo nharo yehupfumi uye yekurasa zvinhu inowandisa, chero dhizaini yakagadziridzwa kuitira compaction uye sintering kubva pakutanga.
Ndinoyeuka kuedza kwakakundikana kushandisa PM yekubatanidza tsvimbo mune prototype injini. Iyo data yekuneta yaitaridzika zvakanaka pabepa, asi isu takapotsa nuance yeanisotropic zvivakwa. Chikamu chakakundikana pamwe chete nendege inotsikirira pasi pe cyclic kurodha, yakajairika PM yekutadza modhi iyo yakaumbwa kana yakakandwa chikamu chaisazoratidza nenzira imwechete. Chakanga chiri chidzidzo chakaoma kuti haugone kungotora dhirowa yechikamu chakagadzirwa wochitumira kuchitoro chePM. Iyo yakagadzirwa inofanira kutaura mutauro wekuita.
Hurukuro Yezvinhu: Alloys uye PM Advantage
Izvi zvinotungamirira kune zvinhu. Basa redu pa QSY ane alloys akakosha senge cobalt-based uye nickel-based anowanzo kune yakanyanyisa nharaunda-tembiricha yepamusoro, ngura. Powder metallurgy ine mutambo wakasarudzika pano uyo kukanda hakugone kuenderana nyore: simbi matrix composites uye graded structures. Ndakaona zvikamu zvePM apo zvimedu zveceramic zvakaparadzirwa zvakafanana mualuminium matrix yekupfeka kuramba, chimwe chinhu chisingagoneki kuwana pasina kusarura kwakasimba mukukanda.
Kune maturusi esimbi anomhanya-mhanya, PM ndiye mambo. Iyo yakanaka, yunifomu carbide chimiro chaunowana kubva paatomizing uye kubatanidza hupfu hunoguma nemudziyo unokuya zviri nani uye unopfeka zvakaenzanirana kupfuura wakare wakakandwa mumwe wake. Isu tinopa PM-yakagadzirwa maturusi mablanks kune edu ega CNC machining nzvimbo. Musiyano wekuenderana pakati pemabhechi unoonekwa zvakanyanya.
Asi, pane muganhu. Kune mahombe, akaomesesa emidziyo musimbi isina tsvina yekushandisa mugungwa, isu tichiri kutsamira pakukanda. Kutendeseka kwechikamu chakakandwa zvakanaka, chimiro chayo che isotropic, uye kugona kuburitsa zvikamu zvinorema zvakanyanya zvichiri kupa muganho. PM zvikamu, kupfuura imwe saizi, zvinonetsa ne density kufanana. Icho chimanikidziro chemuviri chekumanikidza.
Iyo Dimensional Dhanzi: Kushivirira uye Sekondari Operations
Chinhu chikuru chekukakavadzana, kana kusanzwisisana, kushivirira kwedimensional. Iyo 'near-net-shape' vimbiso ye upfu metallurgy ichokwadi, asi 'pedyo' ndiro izwi rinoshanda. Kune maficha anoenderana neinotsikirira nzira, unogona kubata zvinokatyamadza kushivirira, dzimwe nguva mukati mezvishoma zvezviuru zve inch. Asi munzira yekudzvanya, uri kubata neiyo compact's springback uye sintering shrinkage, iyo inowedzera musiyano.
Chinenge chikamu chese chakakomba chePM chatinobata nacho chinoitwa chechipiri. Ndiko kune kambani yakaita seyedu, ine zvakadzika CNC machining hunyanzvi, kazhinji hunouya mumufananidzo. Giya rine sintered rinogona kuda kubvongodzwa kana kukuya pachiboro charo, kana chimiro chechimiro chingada chiso chakaomarara chakagadzirwa kuti chisimbise kupfava. Iyo synergy yakajeka: PM inogadzira iyo yakaoma geometry zvinobudirira, uye chaiyo machining inowedzera yekupedzisira yakakosha kubata. Iko kubata maoko pakati pemaitiro, kwete kutsiva.
Ndinorangarira ndichiongorora batch yePM flanges uko bhaudhi gomba denderedzwa raive zvishoma elliptical post-sintering. Chikonzero chacho? Non-uniform density kubva kune-off-center zadza mufa. Mutengesi wePM aifanira kuwedzera danho rekuita kuti rigadzirise. Iyi mhando yemaitiro nuance haionekwe pane data sheet asi ichokwadi chemazuva ese chekugadzira.
Kudhura Izvo Zvisingaoneki: Iyo Chaiyo Economics
Wese munhu anotaura nezve kuchengetwa kwezvinhu kwePM, chiri chokwadi - hausi kushandura 60% yezvinhu zvako kuita machipisi. Asi iyo chaiyo mutengo nyaya iri mukushandisa uye vhoriyamu. Zviumbwa zvehupfu zvinodhura, zvakaoma, uye zvakaoma. Vanoita pfungwa yekugadzirwa kwe50,000 zvidimbu, kwete zve 500. Izvi zvinopesana zvakakwana nejecha redu rekukanda pateni logic, apo patani yemapuranga yakachipa uye inokurumidza.
Kune zvakare yakavanzika mutengo wehupfu pachayo. Yepamusoro-soro, pre-alloyed simbi poda haina kudhura. Kune yakajairwa iron-copper-carbon musanganiswa, inokwikwidza. Asi kana iwe uchinge wapinda mune iwo nickel-based kana chishandiso simbi poda, iyo mbishi mutengo pa kilogiramu inogona kukupa kumbomira. Iwe urikubhadharira iyo atomization process uye inodzorwa particle size distribution. Iko kururamiswa kunofanirwa kubva mukuita uye kubviswa kwematanho epasi ekugadzirisa.
Takaita ongororo yemutengo wakazara kumhuri yezvikamu zvidiki. Pamayunitsi zviuru zvishanu, CNC machining kubva kubhawa stock yaive yakachipa. Pamayunitsi e50,000, PM yaive yakachipa ne30%. Pamayuniti e500,000, gap rakawedzera kusvika pa50%. Asi izvi zvakangobata chete kana chikamu dhizaini chakabatanidzwa kuita muchina mumwe chete. Kuwedzera chikamu chechipiri-chikamu kuburikidza nekuvhiya kwakasiyana kwakauraya margin. Iyo yekuputsika kwehupfumi-chero poindi ndiyo inofamba inotangwa, yakadzama inonzwa kune dhizaini yakaoma.
Kutarisa Mhiri Kwenzira: Casting vs. PM Maonero
Kubva pachigaro changu mukambani yekukanda uye yekugadzira, kusimuka kwePM kwave kuchidzidzisa. Izvo zvakatimanikidza kuti tive vakapinza pamusoro pekukosha kwedu pachedu. Kune zvidimbu zvine maburi emukati - senge chinopfumisa chine blade yakafukidzwa - kuisa mari kuchiri kusingakundiki. PM haigone kuita izvozvo. Kune zvikamu zvinoda huwandu hwekupedzisira uye hupenyu hwekuneta, senge crankshaft yeinjini inonyatsoshanda, kuforoma kuchiri kutonga, kunyangwe PM forging iri kupinda munzira.
Asi kune iyo yakakura yepakati nzvimbo yezvimiro, kupfeka, uye magineti zvikamu-funga sintered filters, clutch hubs, pole zvidimbu zvemotors-powder metallurgy inowanzova sarudzo yakanakisisa isingarambiki. Muitiro wakakura, wakaoma kunzwisisa. Shanduko yehunyanzvi senge simbi jekiseni molding (MIM) yakawedzera kudzima mitsara, ichibvumira zvidiki, zvisinganzwisisike zvikamu zvakaoma izvo chero zvechinyakare PM kana micro-casting yaigona kubata hupfumi.
Pakupedzisira, ndezvekuva nechishandiso chakakodzera chebasa racho. At Iyo kambani Qingdao Qiangsenyuan Technology Co., Ltd., simba redu riri mukushandura simbi yemvura kuita mativi chaiwo, akavimbika. Powder metallurgy idenga rakafanana apo zvidimbu zvesimbi zvakasimba zvinounganidzwa kuita zvikamu zvakakosha zvakaenzana. Iwo mainjiniya akangwara andinoziva haapike kuvimbika kune imwe nzira. Vanonzwisisa mutauro wavo wose—kugadzira, kugadzira, kugadzira, uye upfu metallurgy-uye sarudza mutauro unonyatso taura nyaya yechigadzirwa chavo. Basa chairo rinoitika mushanduro.
