Xa iinjineli zichaza intsimbi estainless for high-pressure hydraulic valves okanye i-win-resistant shafts, abafane bazinze kumabanga asemgangathweni. Bafuna ukuhambelana kwe-microstructural, ubunzima obusondeleyo-net-shape, kunye nokuzinza kwe-dimensional phantsi kwe-thermal cycling-imeko apho ukubunjwa kwendabuko okanye umatshini kusilela. Yiyo loo nto amaqela amaninzi oyilo aguqukela kuwo powder metallurgy steel stainless-kungekhona njengenye indlela, kodwa njengesisombululo esisisiseko se-mission-critical parts echanekileyo. Kwaye esinye isixhobo esihlala sinikezela ngeso sithembiso yiQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD.
Powder Metallurgy Steel Stainless: Apho Ukuchaneka Kudibana noLawulo lweMetallurgical
Siye sabona abathengi babuyela kathathu kunye nomzobo wezindlu zevalve efanayo-okokuqala kumatshini kwi-bar stock, emva koko kutyalo-mali, ekugqibeleni umgubo wesinyithi (PM) insimbi engenasici. Uphindaphindo ngalunye lusombulule ingxaki enye kodwa lwazisa enye: ukwenza ubuchwephesha obushiya uxinezeleko olushiyekileyo kumacandelo anodonga olucekethekileyo; ukujula kungenise iporosity kwiindlela zokudityaniswa kweendlela; I-PM ihambisa zombini ubuninzi> 99.5% kunye nokulingana okuziinkozo kuwo wonke u-0.05 mm ubukhulu bodonga. Umahluko yayingengomsebenzi kuphela-yayikuphinda-phinda kwiibhetshi zeeyunithi ezingama-500 ngaphandle kokufaneleka.
I-PM insimbi engenasici ayifakwanga i-316L kwaye ibizwa ngokuba yenziwe. Iqala nge-gas-atomized pre-alloyed powders-ngokuqhelekileyo i-17-4PH, i-15-5PH, okanye i-Cr-Ni-Mo-Cu yesiko i-variants-screened to ± 5 µm particle distribution. Kwi-QINGDAO QIANGSENYUAN, i-compaction isebenzisa ii-pressure-acting-double kunye ne-real-time monitoring density monitoring, kungekhona i-tonnage ezinzileyo. I-Sintering iyenzeka kwiziko levacuum elinendawo yombethe elawulwayo (<-40 ° C) kunye namazinga e-ramp ≤5 ° C / min ukukhusela i-chromium carbide precipitation. Isiphumo? Isixhobo esinamandla okuvelisa i-20-30% ephezulu kunamabakala asetyenzisiweyo alinganayo, i-zero ye-voids yangaphakathi ibonwa ngovavanyo lwe-ultrasonic kwi-10 MHz, kunye nobunzima bomhlaba u-Ra ≤1.6 µm njenge-sintered-akukho ukugaya okwesibini okufunekayo kwiindawo ezingavalwanga.
Kutheni “Ifektri” ibaluleke ngaphezu “koMboneleli”
Abanye abathengisi bakhupha i-sintering. Abanye baphatha kuphela oomatshini bokugqibela. Yinyani ipowder metallurgy factory steel stainless umnikazi wekhonkco elipheleleyo-ukusuka kwirisithi ye powder ukuya kuvavanyo olusebenzayo-kwaye QINGDAO QIANGSENYUAN yenza oko kanye. Indawo yabo ye-Qingdao idibanisa iilayini ze-PM eziqinisekisiweyo ze-ISO 9001 kunye neeseli ze-CNC ze-5-axis, ii-ovens zonyango lobushushu ezilinganiswe kwi-AMS 2750E, kunye ne-CMM-equipped metrology labs eqhuba iinkqubo ze-Zeiss CONTURA G2.
Olu lawulo oluthe nkqo lususa iindawo ezimbini zokungaphumeleli eziqhelekileyo: Okokuqala, ukulandeleka kwezinto. Ibhetshi nganye iphethe ii-MTR ezipheleleyo-hayi nje idatha yokuqina, kodwa iintsalela ze-oksijini/nitrogen, iingxelo zohlalutyo lwe-sieve, kunye ne-sintering atmosphere logs. Okwesibini, ukuthembeka kwejometri. Xa umxhasi ecela indlu yesilinda yempompo yepiston enezibuko ezipholileyo ezisi-8, ±0.01 mm ukunyamezelwa kwendawo, kunye nemihlaba yokutywinwa eqinisiweyo, iqela lilungelelanise icandelo eliluhlaza lejometri, imephu yembuyekezo ye-sinter, kunye nokulungiswa kokuphambuka kobushushu emva kwe-sinter-konke ngaphambi kokusikwa kwesixhobo.
Ii-Aplikheshini Zokwenene, Hayi nje Amanani eKhathalogi
Jonga ngaphaya kwee-database. Ekuhanjisweni okwenyani, amacandelo abo e-PM asombulula iingxaki ezithile zentsimi:
- Iivalvu ze-oyile kunye nerhasi: I-AMS 5387 i-cobalt-chromium alloy nozzles imelana ne-120 ° C H₂S imimandla ngelixa igcina i-concentricity yesihlalo emva komjikelezo we-50,000 woxinzelelo-uqinisekisiwe nge-API RP 14D iimvavanyo ze-hydrostatic endurance.
- Iishafti zeziko lezobunjineli zewintshi yemoto: Amalungu e-PM asekelwe kwi-T800 aqhuba i-3 × ixesha elide kuneelinganisi ezibunjiweyo kwi-salty-spray izilingo zokunxiba ezikhawulezayo, ngenxa yokusabalalisa i-carbide efanayo esusa iindlela zokunxiba ezikhethiweyo.
- I-high-speed pump impellers: Izindlu ze-Net-shape sintered 17-4PH zinciphisa ixesha lokuhlanganisa nge-65% ngokubhekiselele kuyilo lwe-bolted multi-piece, ngaphandle kokuvuza kwe-gasket kwi-450 ye-bar eyahlukeneyo yoxinzelelo.
Ezi ayizizo iinzuzo zethiyori. Ziziphumo eziqinisekisiweyo ngophicotho-zincwadi oluqhutywa ngabathengi-hayi ukulinganisa elebhu kuphela.
Yintoni efunekayo ukuba iiNjineli ziyazi ngaphambi kokuchaza
Iinyani ezintathu ezisebenzayo zibumba iiprojekthi eziphumeleleyo ze-PM:
- Uyilo lwe-sintering kuqala: Ii-Undercuts ezinzulu kune-3 × ubukhulu bodonga zifuna umatshini wesibini. I-radius encinci yi-0.2 mm-kungekhona i-0.05 mm njenge-EDM. Sicebisa uphononongo lwe-GD&T kwangoko sisebenzisa inkonzo yabo yenkxaso yobunjineli yasimahla.
- Ubungakanani bebhetshi utshintsho lwezoqoqosho kwiiyunithi ezingama-250: Ngezantsi koko, i-amortization yezixhobo yenza i-PM ibe yindleko kune-CNC. Ngaphezulu kwayo, iindleko zizonke zehla nge-18–22% ngenxa yenkunkuma engaphantsi ngama-70% yenkunkuma ekrwada kunye ne-40% yamaxesha amafutshane okukhokela.
- Ukugqitywa komphezulu akukhethi-kuyasebenza: Imiphezulu ye-As-sintered idibana ne-ISO 13715 yeendawo ezingabalulekanga, kodwa ubuso bokutywina buhlala bungena kwi-vibratory finishing + electropolishing to Ra ≤0.4 µm. Akukho ngaphandle.
Abayityhala i-PM apho ingekhoyo-njengezibiyeli ezinkulu zesakhiwo okanye izindlu ezinoxinzelelo oluphantsi. Ugxininiso lwabo luhlala lumxinwa: iindawo ezichanekileyo ezisebenza ngokuphezulu apho ukuxinana, ukuxhathisa umhlwa, kunye nokuzinza kwe-dimensional zidibana.
Ukujonga Phambili: Ukusuka kwiFactory ukuya kwi-Foundry-Machining Hybrid Partner
Umda olandelayo awukho nje ngcono i-PM engenasici-yimveliso ye-hybrid. I-QINGDAO QIANGSENYUAN ngoku ifanelekile kwiinkqubo ezihlanganisiweyo: ukufaka i-valve ekufutshane ne-net, emva koko yenza i-laser ye-laser ye-Stellite 6 kwindawo yokutywina, ilandelwa kukugqiba ukuseta kwi-CNC enye. Oku kuphelisa ukungahambelani kwe-thermal phakathi kwesiseko kunye nezixhobo ezingaphezulu-isizathu esaziwayo sokuchithwa kwangaphambi kwexesha kwizicelo zomjikelezo ophezulu.
Kwiinjineli eziphonononga ababoneleli, buza imibuzo emithathu: Ngaba banokukubonisa iilogi zemozulu ye-sintering kwiodolo yakho yokugqibela? Ngaba bayayenza inkqubo yokujonga ingxinano-hayi nje icandelo lokugqibela lokuqinisekisa? Kwaye ngaba baya kuphuhlisa i-GD&T yakho yokupakisha ngaphambi kokuba ucofe luqale? Ukuba impendulo nguewe kubo bobathathu, usebenza nge ipowder metallurgy factory steel stainless-hayi nje omnye umthengisi. Loo mahluko uchaza ukuthembeka xa umsebenzi ungenako ukuthotywa.
