Litaba - Selelekela sa Lifting Chain of Grades: G80, G100 & G120

Ho phahamisa liketane le matjeketjaneke likarolo tsa bohlokoa indastering eohle ea kaho, ea tlhahiso, ea merafo le e kantle ho naha. Tshebetso ea bona e itšetlehile ka saense ea lintho tse bonahalang le boenjiniere bo nepahetseng. Likarolo tsa ketane tsa G80, G100, le G120 li emela mekhahlelo e ntseng e tsoela pele ea matla, e hlalosoang ke matla a bona a tlase (ho MPa) a atisitsoeng ka 10:

- G80: 800 MPa bonyane matla a ho tiea

- G100: 1,000 MPa bonyane matla a ho tiea

- G120: 1,200 MPa bonyane matla a ho tiea

Limaraka tsena li khomarela litekanyetso tsa machaba (mohlala, ASME B30.9, ISO 1834, DIN EN818-2) 'me li hlahlojoa ka thata le ho lekoa ho netefatsa ho tšepahala tlas'a meroalo e matla, mocheso o feteletseng le tikoloho e senyang.

1. Lisebelisoa le Metallurgy: Saense ka Mora ho Phahamisa Chains Mephato

Thepa ea mochini oa liketane tsena tse phahamisang li hlaha ho tsoa khethong e nepahetseng ea alloy le kalafo ea mocheso.

Kereiti	Lisebelisoa tsa motheo	Phekolo ea mocheso	Lintlha tsa Key Alloying	Likarolo tsa Microstructural
G80	Tšepe ea khabone e mahareng	Ho khutsisa & ho halefisa	C (0.25-0.35%), Mon	Martensite e futhumetseng
G100	Matla a phahameng a tlaase a alloy (HSLA) tšepe	Ho tima ho laoloang	Cr, Mo, V	Fine-grained bainite/martensite
G120	E tsoetseng pele HSLA tšepe	Precision temping	Cr, Ni, Mo, micro-alloyed Nb/V	Phatlalatso e ntle haholo ea carbide

Hobaneng le hore na lisebelisoa tsena li bohlokoa joang:

- Ntlafatso ea Matla: Lisebelisoa tsa alloying (Cr, Mo, V) li etsa li-carbides tse sitisang ho sisinyeha ha tsamaiso, ho eketsa matla a lihlahisoa ntle le ho nyehela ductility .

-Ho hanyetsa Mokhathala: Li-microstructures tse entsoeng hantle ka G100/G120 li sitisa ho qalisoa ha crack. G120's tempered martensite e fana ka bophelo bo phahameng ba mokhathala (> 100,000 cycles at 30% WLL).

- Apara Resistance: Ho thatafala ka holim'a metsi (mohlala, ho thatafala ha induction) ho G120 ho fokotsa ho khopama lits'ebetsong tse nang le likhohlano tse phahameng joalo ka mehala ea merafo.

Welding Protocols for Chain Integrity

•Pre-Weld Prep:

o Hloekisa libaka tse kopaneng ho tlosa li-oxide / litšila.

o Preheat ho 200 ° C (G100/G120) ho thibela ho phatloha ha hydrogen.

•Mekhoa ea ho Welding:

o Laser Welding: Bakeng sa liketane tsa G120 (mohlala, li-alloys tsa Al-Mg-Si), welding e mahlakoreng a mabeli e theha libaka tsa fusion tse nang le HAZ e bōpehileng joaloka H bakeng sa kabo e tšoanang ea khatello ea maikutlo.

o Hot Wire TIG: Bakeng sa liketane tsa tšepe tsa boiler (mohlala, 10Cr9Mo1VNb), li-welding tse ngata li fokotsa ho sotha.

•Keletso ea Bohlokoa:Qoba bofokoli ba geometric ho HAZ - libaka tse kholo tsa ho qala crack ka tlase ho 150°C.

Mekhahlelo ea Post-Weld Heat Treatment (PWHT).

Kereiti	PWHT Mocheso	Tšoara Nako	Phetoho ea Microstructural	Ntlafatso ea Thepa
G80	550-600°C	Lihora tse 2-3	Martensite e futhumetseng	Ho imolla khatello ea maikutlo, + 10% e ama matla
G100	740-760°C	Lihora tse 2-4	Phallo e ntle ea carbide	15% ↑ matla a mokhathala, HAZ e ts'oanang
G120	760-780°C	Lihora tse 1-2	E thibela M₂₃C₆ mahoashe	E thibela tahlehelo ea matla ka mocheso o phahameng

Tlhokomeliso:Ho feta 790 ° C ho baka carbide coarsening → matla / ductility tahlehelo.

2. Ho Phahamisa Liketane Ts'ebetso ka Maemo a Feteletseng

Litikoloho tse fapaneng li hloka litharollo tsa thepa tse lokiselitsoeng.

Mamello ea Mocheso:

- G80:Tshebetso e tsitsitseng ho fihlela ho 200 ° C; ka ho lahleheloa ke matla ka potlako ho feta 400 ° C ka lebaka la ho fetoha ha mocheso.

- G100/G120:Liketane Boloka matla a 80% ho 300 ° C; limaraka tse khethehileng (mohlala, ka Si/Mo e kenyellelitsoeng) hanela ho theoha ho fihlela ho -40°C bakeng sa tšebeliso ea arctic.

Corrosion Resistance:

- G80:E tloaetse ho mafome; e hloka ho tlotsoa oli khafetsa libakeng tse mongobo.

- G100/G120:Likhetho li kenyelletsa galvanization (zinc plated) kapa mefuta e fapaneng ea tšepe e sa hloekang (mohlala, 316L bakeng sa limela tsa leoatleng/likhemikhale). G100 ea Galvanized e mamella lihora tse 500+ litekong tsa ho fafatsa letsoai.

Mokhathala le Matla a Amang:

- G80:E lekane bakeng sa meroalo e tsitsitseng; matla a tšusumetso ≈25 J ho -20°C.

- G120:Matla a ikhethang (> 40 J) ka lebaka la litlatsetso tsa Ni/Cr; e loketseng bakeng sa ho phahamisa matla (mohlala, li-cranes tsa sebaka sa likepe).

3. Tataiso e Ikhethileng ea Khetho ea Ts'ebeliso

Ho khetha mophato o nepahetseng ho matlafatsa polokeho le litšenyehelo.

Lisebelisoa	Kereiti e khothalelitsoeng	Mabaka
Kaho e Akaretsang	G80	E na le litšenyehelo tse lekaneng bakeng sa meroalo e itekanetseng / libaka tse omileng; mohlala, scaffolding.
Ho Phahamisa Maoatleng/Maoatleng	G100 (Galvanized)	Matla a phahameng + ho hanyetsa kutu; e hanela metsi a leoatle.
Merafo/ Ho rafa	G120	E eketsa khanyetso ea ho roala ha mafika a abrasive; e pholoha meroalo e amang.
Mocheso o Phahameng (mohlala, Mehaho ea tšepe)	G100 (Mofuta o phekotsoeng mocheso)	E boloka matla haufi le libopi (ho fihlela ho 300 ° C).
Liphahamiso Tse Bohlokoa tsa Matla	G120	E thibela mokhathala bakeng sa ho phahamisa liroala-nkhoana kapa ho kenya lisebelisoa tse potolohang.

4. Maikutlo a Thibelo ea ho Hloka le Tlhokomelo

- Ho hloleha ha Mokhathala:E atileng haholo ho cyclic loading. Khanyetso e phahameng ka ho fetesisa ea crack ea G120 e fokotsa kotsi ena.

- Corrosion Pitting:E sekisetsa matla; li-galvanized G100 li-slings li nka 3 × nako e telele libakeng tse lebōpong la leoatle khahlanong le G80 e sa koahetsoeng.

- Tlhahlobo:ASME e laela licheke tsa khoeli le khoeli bakeng sa mapetsong, ho apara> 10% bophara, kapa bolelele. Sebelisa tlhahlobo ea magnetic particle bakeng sa lihokelo tsa G100/G120.

5. Ho Khothatsa Litlhahiso le Mekhoa ea Bokamoso

- Smart Chains:Liketane tsa G120 tse nang le li-sensor tsa khatello tse kentsoeng bakeng sa ho lekola mojaro oa nako ea nnete.

- Liaparo:Liaparo tsa Nano-ceramic ho G120 ho lelefatsa bophelo ba ts'ebeletso libakeng tse nang le asiti.

- Material Science:Patlisiso ka mefuta e fapaneng ea tšepe ea austenitic bakeng sa ho phahamisa cryogenic (-196 ° C LNG lits'ebetso) .

Qetello: Ho Mapisa Chains Kereiti ho Litlhoko tsa Hao

- Khetha G80bakeng sa lifti tse sa senyeheng tse sa jeng litšenyehelo.

- Hlalosa G100bakeng sa tikoloho e senyang / e matla e hlokang matla a leka-lekaneng le nako e telele.

- Khetha bakeng sa G120maemong a feteletseng: mokhathala o mongata, ho soahlamana, kapa ho phahamisoa ka nepo.

Tlhokomeliso ea ho Qetela: Kamehla beha pele liketane tse tiisitsoeng tse nang le liphekolo tse latellang mocheso. Khetho e nepahetseng e thibela ho hlōleha ha tlokotsi—mahlale a lintho tse bonahalang ke mokokotlo oa ho phahamisa tšireletseho.

Nako ea poso: Jun-17-2025

Selelekela sa Lifting Chain of Grades: G80, G100 & G120

1. Lisebelisoa le Metallurgy: Saense ka Mora ho Phahamisa Chains Mephato

2. Ho Phahamisa Liketane Ts'ebetso ka Maemo a Feteletseng

3. Tataiso e Ikhethileng ea Khetho ea Ts'ebeliso

4. Maikutlo a Thibelo ea ho Hloka le Tlhokomelo

5. Ho Khothatsa Litlhahiso le Mekhoa ea Bokamoso

Tlohela Molaetsa oa Hao: