Likarolo tsa Alloy 400 li fana ka khanyetso ea kutu e ke keng ea lekanngoa libakeng tse mabifi tsa lik'hemik'hale, tsa leoatleng le libakeng tsa indasteri tse nang le chloride e ngata-haholo-holo moo litšepe tse sa hloekang li hlōlehang. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., re se re hlophisitse likarolo tse fetang 12,000 tsa Alloy 400 ho tloha 2018 bakeng sa 'mele ea li-valve tsa haeteroliki, matlo a pompo ea kantle ho naha, le lisebelisoa tsa ka hare tsa khase e bolila. Karolo e 'ngoe le e' ngoe e qala ka billet e netefalitsoeng ea ASTM B164, e sebetsana le khatello ea maikutlo pele CNC e fetoha, 'me e qetella ka Ra ≤0.8 μm holim'a botšepehi-ha ho mekhelo.
Hobaneng ha Likarolo tsa Alloy 400 li Feta Mekhoa e meng ea Ts'ebeletso ea Sebele ea Lefatše
Bareki ba botsa: "Hobaneng u sa sebelise 316 stainless kapa duplex?" Karabo e ho boitšoaro ba electrochemical-eseng libukana tsa papatso. Alloy 400 (Ni-Cu, ~ 67% Ni / 30% Cu) e hanyetsa ho fokotsa li-acids tse kang hydrofluoric le sulfuric moo passivation e hlōlehang. Re bone li-valve tse 316 li corrode ka likhoeli tse 9 ka har'a mohala oa phetisetso ea asiti ea phosphoric; molamu oa piston oa Alloy 400 o nkile lilemo tse 4.7. Ho itšireletsa ha metsi a leoatle le ho phatloha ha khatello ea maikutlo ha ho na taba-ho netefalitsoe ka laboratoring ea rona e ngolisitsoeng ka molao ea ISO 17025 e sebelisa liteko tsa ho qoelisoa tsa ASTM G36 le tlhahlobo ea lebelo la butle-butle la ASTM F1113.
Empa Alloy 400 ha se plug-and-play. Sekhahla sa eona se tlase sa ho thatafatsa mosebetsi se hloka lisebelisoa tse khethehileng: ho kenngoa ha carbide ka lifahleho tse bentšitsoeng tsa rake, botebo bo sa tebang ba sehiloeng (≤0.3 mm), le pholiso ea likhohola ka khatello ea 65 bar. Moreki e mong o lekile ho e etsa mochining oa lefa o nang le lisebelisoa tsa HSS-e hlahisitseng sekhahla sa 42% sa likhahla le matšoao a moqoqo a fetang mamello ea GD&T ea ± 0.025 mm. Hona joale re kenyelletsa tlhahlobo ea mahala ea machinability le RFQ e 'ngoe le e' ngoe, ho hlahisa mathata a ka bang teng joalo ka ho khopama ha lebota kapa ho se tsamaisane ha mocheso nakong ea kalafo ea mocheso.
Moo Precision Machining e Kopanang le Corrosion-Critical Geometry
Liphoso tse ngata ha li hlahe ka khetho ea thepa-empa ke ts'ebetso ea geometry. Sebaka se tiisitsoeng se sa lumellaneng holim'a 'mele oa valve ea khatello ea Alloy 400 se ka potlakisa ho bola ha crevice ka 300%. Ke ka lebaka leo ts'ebetso ea rona e kenyelletsang metrology ka mekhahlelo e meraro: netefatso ea CMM ea pele ho ts'ebetso ea setoko se tala, tekanyo ea ts'ebetso ea ho nepahala ha khoele ea lead (ea bohlokoa bakeng sa API 6A lithupa tsa li-valve tsa heke), le netefatso ea ho qetela ea bokaholimo ka li-interferometry tse khanyang.
Ka tloaelo re hlahisa likarolo tseo barekisi ba tloaelehileng ba li fokotsang: 120-mm-diameter Alloy 400 cylinder liner tse nang le 0.01 mm botenya ba lebota ho pholletsa le bolelele ba 450 mm; liboro tsa matlo a pompo tse sa pota-potileng tse hlokang ± 0.008 mm cylindricity; le li-nozzles tse tepeletseng tse nang le botebo ba 0.005 mm pakeng tsa mathōko a ho kena le a ho tsoa. Tsena ha se mamello-re li tiisa. Thomello e 'ngoe le e 'ngoe e kenyelletsa litlaleho tse felletseng tse ka lateloang ho latela maemo a NIST, hammoho le litlaleho tsa tlhahlobo ea leloala tse ikhethileng tse bonts'ang litaba tsa 'nete tsa Cu/Ni/Fe/C—eseng feela “ho lumellana le tse itseng.”
Ho tloha ho Casting ho ea ho Qetello: Hobaneng ho le Bohlokoa ho Kopanya Mothehi
Barekisi ba bang ba ntša Alloy 400 ba e kenya ka mochini. Ha re etse joalo. Hobaneng? Hobane karohano ea dendritic ho as-cast Alloy 400 e theha libaka tse ruileng tsa Cu-rich tse atisang ho hlaseloa ka mokhoa o ikhethileng. Ts'ebetso ea rona ea ho lahla lehlabathe e sebelisa litekanyetso tse laoloang tsa ho tiisa le li-post-cast homogenization ho 1150 ° C bakeng sa lihora tse 4-tse netefalitsoeng ke tlhahlobo ea microprobe. Sena se felisa ho tlama, se tiisa hore 67.2 ± 0.3% kabo ea Ni, 'me e fana ka boima bo tsitsitseng (130-160 HBW) ho pholletsa le karolo eohle.
Taolo ena e fetela ho qetela. Electropolishing e sebetsa hampe ho Alloy 400 ka lebaka la microstructure ea eona ea mekhahlelo e 'meli. Ho e-na le hoo, re sebelisa motsoako oa "citric-nitric passivation" oa mong'a ntlo o lateloang ke ho hloekisoa ha ultrasonic metsing a hloekisitsoeng-a tiisitsoe ka ASTM A967 Method D. Bareki ba tlaleha 2.3 × bophelo bo bolelele ba tšebeletso ka li-loops tse pholileng tsa chloride ha li bapisoa le mekhoa e meng e entsoeng ka mochine.
Ho Khetha Alloy e Nepahetseng 400 Karolo ea Molekane-Ka Ntle ho Letlapa la Boitsebiso
Batla matšoao a mararo: Ntlha ea pele, bopaki ba tlhahlobo ea ho hlōleha ha lefatše-e seng feela lipolelo tsa ho lumellana. Re boloka tlaleho ea sechaba ea lipatlisiso tsa sesosa (tse sa tsejoeng) tse koahelang hydrogen embrittlement ts'ebeletso ea H₂S le galvanic coupling le li-flange tsa carbon steel. Taba ea bobeli, litsamaiso tsa ts'ebetso tse tlalehiloeng: Na li hlakisa nako ea ho soasoa? Reite ea ho pholisa? Netefatso ea boholo ba lijo-thollo ka ASTM E112? Taba ea boraro, karabelo ho li-callouts tsa GD&T-haholo profil, ho felloa ke matla, le boemo bo kopaneng. Haeba setšoantšo sa hau se totobatsa lintlafatso tsa MMC kapa liemeli tsa likarolo tsa datum, sehlopha sa bona sa qotsa se tlameha ho bua puo eo hantle.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. e sebetsa ka tsela ena hobane likarolo tse thibelang ho bola ha se thepa. Ke bathusi ba tsamaiso. Ho hloleha ha karolo e le 'ngoe ea Alloy 400 mojuleng oa taolo ea subsea ho ka baka $2.4M ka litšenyehelo tsa nako ea ho theoha. Ke ka lebaka leo re nkang taelo e 'ngoe le e' ngoe-ho tloha ho mohlala ho ea ho tlhahiso-e le ea bohlokoa haholo. Re romela likarolo tsa Alloy 400 ho ea Amerika Leboea, Europe, le Asia Boroa-bochabela ka traceability e felletseng ea thepa, setifikeiti sa boholo, le tšehetso ea boenjineri e hahelletsoeng khoutheng-e sa eketsoa e le tefiso e eketsehileng.
Bakeng sa lits'ebetso tse hlokang ho sekisetsa ho hanyetsa ho bola, botšepehi ba sebopeho, le ho tsitsisa ha metallurgical-Alloy 400 likarolo tse tsoang QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. li entsoe hore li sebetse, li netefatsoe ho paka, 'me li fanoa ho boloka litsamaiso li sebetsa.
