Tataiso ea Khetho ea Lisebelisoa tsa ho Lahlela Matsete: Li-alloys tse Bapisang le Kopo ea Hau

Ke Hobane'ng ha Khetho ea Lintho e Le ea Bohlokoa Haholo ho Tsetelo ea Matsete

Monyetla oa mantlha oa ho etsa matsete ke tokoloho ea meralo - li-geometri tse haufi le net-shape, mabota a masesaane, le likarolo tsa kahare tse ke keng tsa fihlelleha ka ho qhekella kapa ho etsa lehlabathe. Empa tokoloho eo e phahamisa mathata tabeng ea ho khetha lintho tse bonahalang. Ts'ebetso ea ho etsa matsete e tsamaisana le lithempereichara tse entsoeng ka tšepe e qhibilihisitsoeng ka har'a likhetla tsa ceramic, 'me lelapa le leng le le leng la alloy le sebelisana ka tsela e fapaneng le tikoloho eo: litšepe tsa k'habone lia tšoarela, limaraka tse sa hloekang li hloka moea o laoloang, 'me li-superalloy li hloka taolo e nepahetseng ea mocheso. Ho khetha alloy eo u ke keng ua khona ho e tseba ka mokhoa o tsitsitseng ke mokhoa oa porosity, inclusions, le tieho ea ho tlisa.

Lipotso tse hlano tse hlahisang qeto efe kapa efe ea alloy

Pele u bula database ea lintho tse bonahalang, araba lipotso tsena tse hlano le sehlopha sa hau sa moralo:

1. Karolo e tla jara meroalo efe? Matla a tsitsitseng, ho palama baesekele, le ho ama ntlha e 'ngoe le e 'ngoe ho malapa a fapaneng a motsoako.
2. E tla sebeletsa tikoloho efe? Mecha ea litaba e senyang, mocheso o phahameng, le ho khopana ho fokotsa lebala ka potlako.
3. Mamello le litlhoko tsa bokaholimo ke life? Li-alloys tse ling li na le mamello e matla ho feta tse ling.
4. Karolo e tla etsoa joang? Li-alloys tse thata li eketsa nako ea ho sebetsa le litšenyehelo tsa lisebelisoa.
5. Kopo e hlile e tiisa eng? Lintho tse hlalosang ho feta tekano ke tsona tse atileng haholo - ebile li theko e boima - phoso ea khetho.

Litšepe tsa Carbon le Low-Alloy: The Workhorses

Limaraka tse tloaelehileng : AISI 1020/1030/1045, AISI 4130, AISI 4140/42CrMo4, AISI 8620, 16MnCr5

Litšepe tsa carbon le alloy low-alloy li ikarabella bakeng sa boholo ba lichelete tsa lichelete ka bongata, 'me ka mabaka a utloahalang. Ba fana ka tekanyo e ntle haholo ea matla, ho tiea, ho cheseha, le litšenyehelo - hangata theko ea thepa e tlaase ka kilogram ea motsoako ofe kapa ofe oa boenjiniere o ka lahlehang.

• AISI 1020/1030 (khabone e hlakileng) : E loketse li-brackets, levers, housings, le li-fittings moo matla a itekanetseng (400-600 MPa tensile) a lekaneng. E babatsehang machining.
• AISI 4130/4140 (chromium-molybdenum) : Khetho ea kamehla bakeng sa likarolo tse phahameng tsa khatello ea maikutlo - 'mele ea li-valve tsa hydraulic, lithupa tsa khokahano, likere le lisebelisoa tsa lebala la oli. 4140 e tingoeng le e halefileng e fihla ho 930+ MPa matla a ho tsitsa ka ho hanyetsa mokhathala o motle.
• AISI 8620 (nickel-chromium-molybdenum) : E hlalositsoe moo ho hlokahalang hore ho be thata ho thatafala - likheo tsa li-gear, li-camshaft, le bokaholimo bo apereng bo hlokang mokotla o thata oa carburized holim'a mokokotlo o thata.

Keletso ea ho khetha : Haeba karolo ea hau e sebetsa ka sebopeho se ka tlase ho 300 ° C ntle le ho pepeseha ha kutu, tšepe e nang le alloy e tlase e batla e le eona karabo e sebetsang ka ho fetisisa. U se ke ua ntlafatsa ho ea ho se nang letheba ntle le lebaka le khannoang ke kutu - tefiso ea litšenyehelo ke 2-4×.

Litšepe Tse Hloekileng: Ho Corrosion le Heat Resistance

Limaraka tse tloaelehileng : CF8/304, CF8M/316, CA15/410, 17-4 PH, 2205 duplex

Litšepe tse sa hloekang li laola li-valve, pompo, ts'ebetso ea lijo, lisebelisoa tsa metsing le tsa lik'hemik'hale. Ts'ebetso ea matsete e sebetsana hantle le maemo a sa tsitsang, leha ho qhibiliha ho laoloang le maemo a leholimo a khetla a bohlokoa ho qoba ho nka khabone le ho kenyelletsa oxidation.

• CF8 (304) : The general-purpose austenitic grade for metsi, lijo, le bonolo lik'hemik'hale tšebeletso. Ho hanyetsa kutu e ntle, sebopeho se setle, eseng sa makenete.
• CF8M (316) : E eketsa molybdenum bakeng sa ho hanyetsa pitting khahlanong le chloride - khetho e tloaelehileng bakeng sa ho ntša letsoai, hardware ea marine, mekhatlo ea lik'hemik'hale tsa valve, le lisebelisoa tsa meriana.
• CA15 (410) / CA6NM (410NiMo) : Martensitic stainless grades tse kopanyang ho hanyetsa ha kutu e itekanetseng le matla a phahameng - tse sebelisoang ho limathi tsa turbine, li-valve trim, le li-pump shafts.
• 17-4 PH : Pula-e thatafatsa letheba e fanang ka matla a 1,100+ MPa a tsitsitseng ka ho hanyetsa ha kutu. Mokhoa oa ho fumana likutu tsa li-valve tse sebetsang hantle haholo, lisebelisoa tsa sepakapaka, le lisebelisoa.
• Duplex 2205 : E batla e imena habeli matla a tlhahiso ea 316 ka khanyetso e phahameng ea chloride-corrosion cracking, bakeng sa mosebetsi oa lik'hemik'hale o mosehla le o mabifi.

Malebela a ho khetha : Bapisa kereiti e sa tsitsang le mochine o itseng oa ho senya. 304 e hloleha libakeng tsa chloride moo 316 e pholohang; 316 ka boeona e inehela khatellong ea maikutlo-ho phatloha moo limaraka tse peli li sa sebetseng teng.

Tšepe ea Ductile le Tšepe e Bohlooho: Ho senya le Boleng

Limaraka tse tloaelehileng : QT400-18, QT450-10, QT500-7, QT700-2, GG25

Le hoja boholo bo amahanngoa le ho chesoa ha lehlabathe, tšepe ea ductile e boetse e na le matsete a lichelete - haholo-holo bakeng sa likarolo tseo ho tsona motsoako oa eona o ikhethang oa matla, damping, le matla a haufi le tšepe ka theko e tlaase e leng ea bohlokoa.

• QT450-10 / QT500-7 : Mehaho ea mehaho, litšehetso tsa li-axle, likarolo tsa ho emisa. Elongation ea 7-10% e fana ka boima ba 'nete.
• QT700-2 : Lisebelisoa tse matla haholo - matlo a ho qetela a koloi, li-crankshafts, likere - moo ho senyehang ha vibration le matla a hatellang.
• GG25 (tšepe e bohlooho) : Likarolo tsa sekontiri le mariki moo damping le thermal conductivity li fetang litlhoko tsa tensile.

Lisebelisoa tsa Koporo: Li-Bearings le Tšebeletso ea Marine

Limaraka tse tloaelehileng : C95800 NiAl bronze, C83600 koporo e khubelu, C95400 aluminium bronze

Li-alloys tsa koporo li fumana sebaka sa tsona moo tšepe e ke keng ea khona ho ea teng: tikoloho e qoeletseng ea leoatle, ts'ebeliso ea lihlahla le lisebelisoa tse se nang tlhase bakeng sa maemo a kotsi.

• C95800 Nickel-Aluminium Bronze : Tekanyetso ea propeller ea marine - 600+ MPa tensile, cavitation e babatsehang le ho hanyetsa ho bola ha metsi a leoatle, le thepa e khahlanong le litšila.
• C95400 Aluminium Bronze : Li-bearings tse matla, likere le litulo tsa li-valve tse hlokang boima ba moroalo ho feta li-bronze tse tloaelehileng.

Li-Superalloys le Lisebelisoa tse khethehileng

Bakeng sa likarolo tsa turbine ea khase, litsamaiso tsa mosi, le lisebelisoa tsa petrochemical tse sebetsang ka holimo ho 600 ° C, ho etsa matsete ke eona feela ts'ebetso e sebetsang. Cobalt-base (Stellite) le li-alloys tsa nickel-base li boloka matla a mocheso moo litšepe li 'nileng tsa inehela ka nako e telele. Lisebelisoa tsena li hloka litsi tse khethehileng tse nang le bokhoni ba ho qhibilihisa vacuum - karolo eo ho eona khetho ea thepa le khetho ea barekisi e ke keng ea arohanngoa.

Tlhahlobo ea 'Nete ea Ts'ebetso ea Litšenyehelo

Mohlala o sebetsang oa kelello o beha malapa a tloaelehileng a alloy ka litšenyehelo tse lekanyelitsoeng tsa thepa:

1. Grey iron / carbon steel (ea motheo 1.0×)
2. Aene ea tšepe (1.1×)
3. Tšepe ea alloy e tlase (1.2–1.5×)
4. 400-letoto le sa hloekang (1.5–2×)
5. 300-letoto le sa hloekang (2–3×)
6. 17-4 PH / duplex (3–4×)
7. Lisebelisoa tsa boronse (3–5×)
8. Li-Superalloy (8–20×+)

Sebopeho se hlakile: mohato o mong le o mong oa lere o reka bokhoni bo itseng - matla, ho hanyetsa ho bola, kapa ho hanyetsa mocheso. Lefa bakeng sa bokhoni boo kopo ea hau e bo hlokang, eseng boo karolo ea mohlolisani oa hau e bo hlokang.

Kamoo KST Casting e Tšehetsang Qeto ea Hao ea Lintho

Khetho ea thepa ha ea lokela ho etsahala ka thoko ho tlhahiso. Ho Ningbo Ruican, sehlopha sa rona sa boenjiniere se hlahloba RFQ e 'ngoe le e 'ngoe bakeng sa ts'ebetso ea lisebelisoa pele e qotsa. Re fana ka litlatsetso tse fetelletseng tse phahamisang litšenyehelo, re fana ka tlhahiso ea lintho tse lekanang le tsona tse ntlafatsang bokhoni ba ho bapala, le ho fana ka maikutlo a DFM a kopanyang likarolo le ho fokotsa ho sebetsa ha mochini. Ka setifikeiti sa IATF 16949, netefatso ea spectrometer mochesong o mong le o mong, le setifikeiti se felletseng sa EN 10204 3.1, u fumana netefatso e ngotsoeng ea hore motsoako o karolong ea hau ke motsoako oo u o boletseng.