Iyo sisitemu ya hydraulic yananiwe mumavuta yo mumazi - cyangwa mugihe inteko za pompe zifata mubihingwa byamazi yumunyu mwinshi-intandaro ni gake. Ni ruswa. Ntabwo ari ingese. Ntabwo ari kwisiga. Twabonye amazu ya valve yamenetse nyuma y'amezi 18 mubidukikije bikungahaye kuri chloride, kabone nubwo ibyuma bitagira umwanda byashyizweho kashe ku gishushanyo. Niyo mpamvu abajenjeri bo muri Amerika ya Ruguru n'Uburayi ubu babanza kubaza ikibazo kimwe: Ni he uruganda rwangirika ruswa rwicara murwego rwo gutanga?
Kurwanya ruswa ntabwo ari igifuniko-cyubatswe mu mavuta, inzira, no kubazwa
Kurwanya ruswa kwukuri gutangira mbere yo gutangira. Ituye muburyo bwa metallurgical ya AMS 5387 cobalt alloy - aho icyiciro cya karuboni ihindagurika munsi ya 0,02% itandukanya imyaka 5 yumurimo na microcracking imburagihe. Yibera muri T800 ishingiye kuri Nozzles ifite umutekano muke kuri 650 ° C mugihe irwanya sulfidasiyo mumirongo ya gaze. Kandi ibaho muri disipuline yo kwanga guterwa nubushyuhe niba ibizamini bya ultrasonic byerekana ko munsi yubutaka buri hejuru ya 0.3 mm.
Ibi twabyemeje mubikorwa 47 byakozwe kuri pompe yubudage OEM: ibice byakorewe mumucanga ASTM A487 Grade CA6NM yerekanye 3.2 life igihe kirekire cyumurimo ugereranije na geometrike isa nu mucuruzi ukoresheje ibicuruzwa bidafite ibyemezo. Kubera iki? Gukurikirana. Buri kintu cyose gishonga gitwara raporo yuzuye ya PMI, umurongo uteganijwe, hamwe namakuru yikizamini cya ruswa - ntabwo ari icyemezo cyurusyo gusa.
Uru rwego rwo kugenzura rusaba guhuza vertical. Ntushobora gutanga hanze ya casting, hanyuma utegereze amaduka ya CNC kugirango yishyure ibikoresho biterwa no gutandukana. Ntushobora kwishingikiriza kumashanyarazi yubushyuhe bwa gatatu mugihe inzu yawe ya pisitori ya pisitori isaba gusaza ibyiciro bibiri kuri 925 ° C + 725 ° C hamwe no kwihanganira ± 3 ° C. Niyo mpamvu uruganda rukora ruswa idashobora kwangirika rugomba gutunga ibyuzuye: inyemezabuguzi → guta → kugabanya imihangayiko → gutunganya neza → passivation ya nyuma cyangwa gutwikira HVOF.
Ibyiciro bine byibicuruzwa-n'impamvu basangiye uburyo bumwe bwo gutsindwa
Ingingo ikunze kunanirwa hejuru yumuvuduko wumuvuduko, winch center shaft rollers, hamwe na cobalt alloy plugs ntabwo ari geometrie. Ni intera idahuye. By'umwihariko:
- CNC ibice hamwe na GD&T ihamagarwa (± 0.01 mm kwihanganira imyanya) ariko guta substrate hamwe nibibazo bisigaye> 120 MPa;
- Ibigize Cobalt-nikel aho itandukaniro ryaguka ryumuriro hagati yumubiri wa AMS 5387 na Inconel 718 winjizamo mikorobe mugihe cyamagare yubushyuhe;
- Ibyuma hamwe no gukwirakwiza grafite nodule imwe-iganisha kuri selile ya galvanic yaho muri hydrogène sulfide itose;
- Ibyuma bidafite ingese aho imvura ya sigma igaragara kubera igipimo cyo gukonjesha kitagenzuwe nyuma yo gusudira, ntabwo ari chimie mbi.
Twafashe bose uko ari bane mu igenzura riherutse gutangwa n'abashoramari 12 bapiganwa kuri sisitemu yo gutwara ibinyabiziga. Ikigo kimwe gusa - gifite ibikoresho bya laboratoire yo mu nzu, ikarita yerekana ubushyuhe bwa CMM, hamwe na verisiyo ya ISO 17025 yemewe - byujuje ubuziranenge bw’imikorere: zeru zeru nyuma y’ibizunguruka 2000 kuri 350 mu mazi y’inyanja.
Kuki "irwanya ruswa" ntacyo bivuze idafite disipuline
Abacuruzi bamwe bavuga "uruganda rukora ruswa idashobora kwangirika" - ariko bagatanga akazi gasanzwe ka CNC. Ibyo birananirana kuko:
Ubwa mbere, ibinyomoro bya cobalt nka T800 bisaba ibikoresho bya karbide bifite 8 ° inguni ya rake itari nziza hamwe na firimu ikonjesha ku muvuduko wa bar-65 - ntabwo ari iduka ryububiko. Icya kabiri, gushora imari bikenera HIP (gukanda isostatike ishyushye) kuri 1150 ° C / 150 MPa kugirango ufunge microporosity ihinduka inzira ya electrolyte. Icya gatatu, kurangiza ibintu hejuru: Ra 0.4 μm kuntebe ya valve igabanya gutangizwa kwangirika kwa 70% na Ra 1,6 mm, kuri NACE MR0175 / ISO 15156.
Dukoresha buri gice cya cobalt dukoresheje ubugenzuzi butatu bwigenga: mbere yo gutunganya (ingano ya PMI + ingano), nyuma yo gutunganywa (CMM + irangi ryinjira), na finale (spray yumunyu kuri ASTM B117 + electrochemical impedance spectroscopy). Niba EIS yerekana uburyo bwo kwimura amafaranga munsi ya 12 kΩ · cm², igice cyohereza - ntabwo ari "irwanya ruswa," ahubwo ni "imirimo isabwa." Nta na kimwe kidasanzwe.
Reba hejuru y'urupapuro rwihariye - reba icyarokotse isi-yoherejwe
Uruganda rwangirika ruswa rushobora kubona izina ryarwo mu murima, ntabwo ari laboratoire. Dukurikirana ibyagarutsweho: 92% bya AMS 5387 ibice bya pompe byashyizwe mu bimera byo mu majyepfo y’iburasirazuba bwa Aziya byageze ku myaka 4+ tutabitayeho. Kunanirwa kwa Zeru byagaragaye mu bice 1.842 byoherejwe hakurya y’inyanja y’amajyaruguru - nubwo byagaragaye kuri 3.5% NaCl, 12 ppm H₂S, hamwe na sikeli yapakiye kuri bar 700.
Ukwo kwizerwa guturuka ku byemezo byafashwe mbere yuko chip ya mbere iguruka: gushakisha cobalt mu nganda zemewe zemewe muri Finlande - ntabwo zivanze; kwemeza amashusho yikarita yerekana ikarita nyayo ya microstructure; no gushyiramo ubugenzuzi bugenzura aho inenge igaragara - atari kumarembo gusa. Iyo ukeneye ibice bidahuye gusa na ASTM G48 cyangwa ISO 9223 Icyiciro C5-Njye, ukeneye umufatanyabikorwa ufata kurwanya ruswa nka fiziki, ntabwo ari marketing.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ikora nk'uruganda rwangirika ruswa rushingiye kubisubizo byapimwe-ntabwo ari amasezerano. Ikigo cyacyo cyujuje ISO muri Qingdao gitanga uburinganire bwuzuye, ubunyangamugayo bwa metallurgjiya, hamwe nibisobanuro byerekana ibice bikora aho gutsindwa atari amahitamo. Kubisubizo byingirakamaro mubikorwa byinganda, kuramba bitangirana nuburyo bwo kurwanya ruswa byakozwe - ntibisobanuwe gusa.
