Xov Xwm - Kev Taw Qhia Txog Cov Qib Nqa Khoom: G80, G100 & G120

Cov saw hlau thiab cov slingsyog cov khoom tseem ceeb hauv txhua qhov kev tsim kho, kev tsim khoom, kev khawb av, thiab kev lag luam hauv hiav txwv. Lawv qhov kev ua tau zoo nyob ntawm kev tshawb fawb txog cov khoom siv thiab kev tsim kho kom raug. Cov qib saw hlau ntawm G80, G100, thiab G120 sawv cev rau cov pawg muaj zog siab dua, txhais los ntawm lawv lub zog tensile tsawg kawg nkaus (hauv MPa) muab faib los ntawm 10:

- G80: 800 MPa yam tsawg kawg nkaus tensile zog

- G100: 1,000 MPa yam tsawg kawg nkaus tensile zog

- G120: 1,200 MPa yam tsawg kawg nkaus tensile zog

Cov qib no ua raws li cov qauv thoob ntiaj teb (piv txwv li, ASME B30.9, ISO 1834, DIN EN818-2) thiab dhau los ntawm kev tshuaj xyuas thiab kev sim nruj kom ntseeg tau tias muaj kev ntseeg siab nyob rau hauv cov khoom thauj dynamic, qhov kub thiab txias heev, thiab cov chaw muaj corrosive.

1. Cov Khoom Siv thiab Metallurgy: Kev Tshawb Fawb Tom Qab Cov Qib Lifting Chains

Cov khoom siv kho tshuab ntawm cov saw hlau no yog los ntawm kev xaiv cov hlau sib xyaw thiab kev kho cua sov kom raug.

Qib	Cov khoom siv hauv paus	Kev kho cua sov	Cov Ntsiab Lus Tseem Ceeb ntawm Kev Sib Xyaws	Cov yam ntxwv me me
G80	Hlau nruab nrab-carbon	Kev Tua thiab Kev Kub Ntxhov	C (0.25-0.35%), Mn	Tempered martensite
G100	Cov hlau uas muaj zog siab thiab tsis tshua muaj hlau (HSLA)	Kev tswj hwm kev tua hluav taws	Cr, Mo, V	Bainite/martensite uas muaj cov pob zeb me me
G120	Cov hlau HSLA siab heev	Kev kub siab ua kom raug	Cr, Ni, Mo, micro-alloyed Nb/V	Ultra-fine carbide dispersion

Vim li cas thiab cov ntaub ntawv no tseem ceeb li cas:

- Kev Txhim Kho ZogCov khoom sib xyaw ua ke (Cr, Mo, V) tsim cov carbides uas cuam tshuam kev txav mus los, ua rau lub zog tso zis ntau ntxiv yam tsis muaj kev cuam tshuam rau kev ua haujlwm.

-Kev Tiv Thaiv Kev Qaug ZogCov qauv me me hauv G100/G120 ua rau tsis yooj yim tawg. G120's tempered martensite muaj lub neej qaug zog zoo dua (>100,000 lub voj voog ntawm 30% WLL).

- Kev Tiv Thaiv HnavKev ua kom tawv ntawm qhov chaw (piv txwv li, kev ua kom tawv ntawm qhov chaw) hauv G120 txo qhov kev puas tsuaj hauv cov ntawv thov kev sib txhuam siab xws li kev khawb av draglines.

Cov Txheej Txheem Vuam Rau Kev Ncaj Ncees ntawm Cov Saw

•Kev Npaj Ua Ntej Weld:

o Ntxuav cov pob qij txha kom tshem tawm cov oxides/cov kuab paug.

o Ua ntej cua sov rau 200°C (G100/G120) kom tiv thaiv hydrogen tawg.

•Cov Kev Siv Vuam:

o Kev Vuam Laser: Rau G120 saw hlau (piv txwv li, Al-Mg-Si alloys), kev vuam ob sab tsim cov cheeb tsam sib xyaw nrog H-zoo li HAZ rau kev faib tawm kev ntxhov siab sib xws.

o Hlau Kub TIG: Rau cov saw hlau boiler (piv txwv li, 10Cr9Mo1VNb), kev vuam ntau zaus txo qhov kev cuam tshuam.

•Lub Tswv Yim Tseem Ceeb:Tsis txhob muaj qhov tsis zoo ntawm cov duab hauv HAZ - qhov chaw tawg loj pib qis dua 150 ° C.

Cov Kev Kho Mob Tom Qab Weld Kub (PWHT)

Qib	Kub PWHT	Tuav Lub Sijhawm	Kev Hloov Pauv Me Me	Kev Txhim Kho Vaj Tse
G80	550-600°C	2-3 teev	Tempered martensite	Kev txo kev ntxhov siab, + 10% kev cuam tshuam kev nyuaj siab
G100	740-760°C	2-4 teev	Kev sib kis ntawm cov carbide zoo	15% ↑ lub zog qaug zog, HAZ sib xws
G120	760-780°C	1-2 teev	Txwv tsis pub M₂₃C₆ coarsening	Tiv thaiv kom tsis txhob muaj zog thaum kub siab

Kev Ceeb Toom:Tshaj 790 ° C ua rau carbide coarsening → lub zog/ductility poob.

2. Kev Ua Haujlwm ntawm Cov Saw Nqa Khoom hauv Cov Xwm Txheej Hnyav

Cov chaw sib txawv xav tau cov khoom siv kho kom haum rau koj.

Kev kam rau siab kub:

- G80:Kev ua haujlwm ruaj khov txog li 200 ° C; nrog rau kev poob zog sai sai saum 400 ° C vim yog kev hloov pauv tempering.

- G100/G120:Cov saw hlau khaws cia 80% lub zog ntawm 300 ° C; cov qib tshwj xeeb (piv txwv li, nrog ntxiv Si / Mo) tiv taus embrittlement mus txog -40 ° C rau kev siv arctic.

Kev Tiv Thaiv Kev Xeb:

- G80:Yooj yim xeb; yuav tsum tau roj ntau zaus hauv cov chaw noo noo.

- G100/G120:Cov kev xaiv muaj xws li galvanization (zinc plated) lossis stainless-steel variants (piv txwv li, 316L rau marine / tshuaj cog). Galvanized G100 tiv taus 500+ teev hauv kev sim tshuaj tsuag ntsev.

Kev qaug zog thiab kev cuam tshuam kev tawv:

- G80:Txaus rau cov khoom thauj zoo li qub; qhov cuam tshuam toughness ≈25 J ntawm -20 ° C.

- G120:Kev ua kom muaj zog tshwj xeeb (> 40 J) vim yog kev ntxiv Ni / Cr; zoo tagnrho rau kev nqa dynamic (piv txwv li, cov cranes hauv chaw nres nkoj).

3. Phau Ntawv Qhia Xaiv Tshwj Xeeb Rau Daim Ntawv Thov

Kev xaiv qib zoo yuav ua rau muaj kev nyab xeeb thiab txuag tau nyiaj.

Cov ntawv thov	Qib Pom Zoo	Kev piav qhia
Kev Tsim Kho Dav Dav	G80	Tsim nyog rau cov khoom thauj nruab nrab/chaw qhuav; piv txwv li, scaffolding.
Kev Nqa Khoom Hauv Dej Hiav Txwv/Thaj Av	G100 (Xim av nplaum)	Lub zog siab + kev tiv thaiv corrosion; tiv taus dej hiav txwv pitting.
Kev khawb av/kev khawb av	G120	Ua kom muaj kev tiv thaiv kev hnav ntau tshaj plaws hauv kev tuav pob zeb abrasive; tiv taus cov khoom hnyav.
Kub-Kub (piv txwv li, Cov Hoobkas Hlau)	G100 (Heat-treated variant)	Khaws lub zog ze ntawm cov cub tawg (txog li 300 ° C).
Cov Kev Nqa Khoom Tseem Ceeb	G120	Tiv taus kev qaug zog rau kev nqa lub dav hlau lossis kev teeb tsa cov khoom siv tig.

4. Kev Tiv Thaiv Kev Ua Tsis Tau Zoo thiab Kev Txij Nkawm

- Kev qaug zog tsis ua haujlwm:Feem ntau tshwm sim hauv kev thauj khoom cyclic. G120 qhov kev tiv thaiv kab nrib pleb zoo tshaj plaws txo qhov kev pheej hmoo no.

- Kev puas tsuaj los ntawm corrosion:Ua rau lub zog tsis zoo; cov hlua khi galvanized G100 kav ntev dua 3 × hauv cov chaw ntug dej hiav txwv piv rau G80 uas tsis tau coated.

- Kev Tshuaj Xyuas:ASME yuam kom kuaj xyuas txhua hli seb puas muaj qhov tawg, hnav >10% txoj kab uas hla, lossis ntev. Siv kev sim cov khoom sib nqus rau G100/G120 txuas.

5. Txhawb kom muaj kev tsim kho tshiab thiab cov qauv yav tom ntej

- Cov saw hlau ntse:G120 saw hlau nrog cov sensors strain uas tau muab tso rau hauv rau kev saib xyuas lub sijhawm tiag tiag.

- Txheej:Cov txheej txheem nano-ceramic ntawm G120 kom ntev lub neej kev pabcuam hauv cov chaw acidic.

- Kev Tshawb Fawb Txog Khoom Siv:Kev tshawb fawb txog cov hlau austenitic sib txawv rau kev nqa cryogenic (-196 ° C LNG daim ntawv thov).

Xaus Lus: Kev Sib Txuas Cov Chains Qib Rau Koj Cov Kev Xav Tau

- Xaiv G80rau cov nqi-rhiab, tsis-corrosive static lifts.

- Qhia meej G100rau cov chaw muaj zog corrosive/dynamic uas xav tau lub zog thiab kev ua haujlwm ntev.

- Xaiv G120nyob rau hauv cov xwm txheej hnyav: kev qaug zog siab, kev puas tsuaj, lossis kev tsa siab raug.

Lus Cim Kawg: Ib txwm muab qhov tseem ceeb rau cov saw hlau uas tau ntawv pov thawj nrog kev kho cua sov uas taug qab tau. Kev xaiv kom zoo yuav tiv thaiv kev puas tsuaj loj heev - kev tshawb fawb txog cov khoom siv yog lub hauv paus ntawm kev nyab xeeb ntawm kev nqa.

Lub sijhawm tshaj tawm: Lub Rau Hli-17-2025

Kev Taw Qhia Txog Cov Qib Nqa Khoom: G80, G100 & G120

1. Cov Khoom Siv thiab Metallurgy: Kev Tshawb Fawb Tom Qab Cov Qib Lifting Chains

2. Kev Ua Haujlwm ntawm Cov Saw Nqa Khoom hauv Cov Xwm Txheej Hnyav

3. Phau Ntawv Qhia Xaiv Tshwj Xeeb Rau Daim Ntawv Thov

4. Kev Tiv Thaiv Kev Ua Tsis Tau Zoo thiab Kev Txij Nkawm

5. Txhawb kom muaj kev tsim kho tshiab thiab cov qauv yav tom ntej

Tawm Koj Cov Lus: