Sintering yepoda metallurgy fekitori mashandiro harisi danho rekupedzisira-inguva yekugadzira-kana-yekupwanya yechikamu chekuvimbika, kugadzikana kwedimensional, uye kushanda kwenguva refu mukushushikana kwakanyanya. KuQINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Takanyudza zviuru gumi nezviviri zvemabhechi ecobalt-nickel alloy compacts kubva 2018-kunyanya AMS 5387 uye T800-giredhi zvinhu zvakagadzirirwa hydraulic pombi dzimba, pressure centre mavharuvhu zvigaro, mawinner. Zvatakadzidza zvakanga zvisiri mumabhuku. Yakabuda kubva mumatanda echoto, microstructure scans, uye yakadzokororwa midzi-chikonzero kuongororwa apo density yakadonha 0.3% pa1,185 ° C kana kukura kwezviyo kwakaputika panguva yekutonhora kwenitrogen-yakaderedzwa.
Temperature Profile Control Haitaurike—Kunyanya kune Superalloys
Kutadza kwakawanda mukupisa kwepoda metallurgy fekitori mitsetse inodzokera kumashure kwekupisa-kwete zvigadziro zvemidziyo. Kutsauka kwe15°C munguva yekubata-bata kunochinja AMS 5387's intergranular phase distribution inokwana kucheka hupenyu hwekuneta ne37% mudzimba dzepiston pump silinda. Isu tinoshandisa mbiri-zone molybdenum-inopisa mavira ane chaiyo-nguva thermocouple mhinduro pane matatu radial zvinzvimbo pamutoro. Kunzwisisa kwakakosha: ramp rates pazasi 3 ° C / min pazasi 600 ° C inodzivirira binder decomposition blowouts; pamusoro pe900 ° C, tinobatisisa 45 maminitsi-kwete 60-kudzivisa yakawandisa cobalt diffusion tichichengeta ≥98.2% theoretical density. Iyi haisi dzidziso. Ndiyo mbiri yakapfuura ASTM B243 tensile kusimbiswa pa92 akateedzana mijenya.
Atmosphere Kuchena Inotungamira Pakuperera Kutendeseka-uye Machinability
Hydrogen yemukati inonyanya kukosha kupfuura yakazara gasi kuyerera. Isu tinotarisisa H₂ dova nguva nenguva - kwete kungoisa pfungwa pamhepo. Mumwe mutengi cobalt alloy nozzles airatidza micro-pitting mushure mekupisa kurapwa. Kuferefeta kwakaratidza inlet hydrogen pa99.99% kuchena-asi dova rakananga pa -42°C rakaunza trace water vapour iyo yakagadzira nickel-rich miganhu yezviyo panguva yekupisa. Mhinduro: yakawedzera cryogenic trapping uye yakaomesa dova kusvika -65°C. Mhedzisiro: kushata kwepamusoro (Ra) kwakadonha kubva ku1.8 µm kuenda ku0.6 µm pre-machining, kucheka CNC kutenderera nguva ne22%. Kune simbi yekukanda uye simbi isina tsvina, isu tinochinja kune yakaparadzaniswa ammonia nayo <5 ppm O₂- inosimbiswa awa yega yega kuburikidza ne zirconia sensor. Hapana kunze.
Mutoro Geometry uye Green Density Inofanirwa Kufananidzwa-Kwete Kukwirisa
Higher green density inonzwika zvirinani-kusvikira kukanganisa kwasvika. Isu tinovhara girini density pa62-65% yeT800-yakavakirwa zvikamu kureba kupfuura 120 mm. Sei? Nekuti kusaenzana kudikitira pamakona akaomesesa-seaya ari muinjiniya mawinch shafts-zvinokonzeresa 0.18 mm uta muhurefu hwe 300 mm kana girini yakasvibira ikadarika 66%. Kugadzirisa kwedu: akakamurwa kurodha matireyi ane graded ekutsigira mapini. Zvikamu zvitete zvinogara pazvigadziko zveceramic zvinodzivirira zvishoma; mabhesi akakora anogara pane yakakwira-conductivity silicon carbide pads. Shrinkage musiyano wakaderera kubva ± 0.32% kusvika ± 0.07%. Bhonasi: kuburitsa kwechoto kwakawedzera 18% nekuti isu takabvisa post-sinter kutwasanuka.
Real-Nguva Monitoring Inorova Post-Process Kuongorora Nguva Yese
Isu takamira kuvimba nesample-based density cheki mushure mekunge bhechi remiviri yevharuvhu yekumanikidza yakundikana hydrostatic kuyedzwa pa410 bar - kunyangwe ichipfuura CMM kuongororwa. Root cause: localized porosity pedyo nemukati radii inopotswa nesingle-point Archimedes kuyerwa. Iye zvino imwe neimwe sintering run inodyisa data mune yedu proprietary SinterTrack system: thermocouple arrays log 120 points per load; masensa ekurasikirwa kukuru anoona kupera kwebinder kupera mukati me ± 0.8 seconds; infrared makamera mepu pamusoro emissivity inochinja inoratidza kutanga kwezviyo coalescence. Nyevero dzinokonzera otomatiki kubata-uye-wongororo kana chero parameta ikatsauka kupfuura zvakatemerwa kudzora zviganho-yakaverengerwa pagiredhi rezvinhu, kwete pachoto. Izvi zvakaderedza mijenya isingaite kubva pa1.4% kusvika pa0.23% mumwedzi gumi nemisere.
Optimization Haisi Yeimwe Parameter-Iri nezve Kupindirana Sarudzo
Sintering yepowder metallurgy fekitori budiriro inoenderana nekuti mhepo, tembiricha, nguva, uye chikamu geometry inopindirana-kwete maitiro ega ega. Iyo tembiricha ye5°C yepamusoro inovandudza density asi inowedzera oxidation yepasi kunze kwekunge hutsanana hwehydrogen hwakasimba panguva imwe chete. Kukurumidza kutonhora kunovandudza kuoma asi kunokoka microcracks kunze kwekunge green density ichidonha zvishoma. PaQINGDAO QIANGSENYUAN, tinobata sintering seyakavharwa-loop system: inopinda poda yakawanda data (particle size D50, oxygen content, flow rate) inogadzirisa zvakananga zvigadziro zvevira zvisati zvarodha. Isu tinogovera pfungwa iyi - kwete mibairo chete - nevatengi panguva yekuongorora kweGD&T. Nekuti kana imba yako yepombi inofanirwa kurarama zviuru makumi maviri pamakumi matatu neshanu bar, sintering haisi kugadzira. Kuzadzika kwechibvumirano chesimbi.
