S890 qwyog cov qauv steel qib nrog lub zog tawm los ntau dua li S690QL. Cov khoom siv ua ib qho kev xaiv zoo rau cov neeg muag khoom uas xav txhawb lub zog siab hauv kev siv nyiaj zoo. Vim yog cov yam ntxwv ntawm cov hlau, cov neeg siv khoom tuaj yeem siv cov khoom siv no hauv ntau daim ntawv thov uas ua rau muaj kev txhim kho leaner thaum tseem tuav lub zog zoo.
S890QL yog dej quenched & tempered steel uas ua raws li EN10025: 6: 2004 specification.
Tshuaj muaj pes tsawg leeg ntawm S890QL
| % | |
|---|---|
| C | 0.20 |
| Si | 0.80 |
| Mn | 1.70 |
| P | 0.020 |
| S | 0.010 |
| N | 0.015 |
| B | 0.0050 |
| Cr | 1.50 |
| Cu | 0.50 |
| Mo | 0.70 |
| Nb | 0.06 |
| Ni | 2.0 |
| Ti | 0.05 |
| V | 0.12 |
| Zr | 0.15 |
Mechanical Properties ntawm S890QL
| Lub npe | Mechanical Properties (ambient kub) | |||||||
|---|---|---|---|---|---|---|---|---|
| Lub npe hlau | Hlau Number | Min. Yield zog ReH MPa | Tensile zog Rm MPa | Min. & elongation tom qab tawg | ||||
| Nominal thickness (hli) | Nominal thickness (hli) | |||||||
| >3 <50 | >50 <100 | >100 <150 | >3 <50 | >50 <100 | >100 <150 | |||
| S890 qw | 1.8983 | 890 | 830 | -- | 940/1100 | 880/1100 | -- | 11 |
V Notch Impact Test
| Qib | Qauv Orientation | @0 Deg C | @-20 ° C | -40 ° C | @ -60 ° C |
|---|---|---|---|---|---|
| S890 qw | Ntev | 50J | 40J | 30J | |
| Hloov | 35J | 30J | 27J |
Cov Txheej Txheem Tseem Ceeb:
Quenching & Tempering (Q + T):Qhov no yog lub hauv paus kev kho cua sov, imparting siab zog thiab toughness; S890QL yog xa hauv lub xeev no.
Txiav:Nws tuaj yeem txiav rau qhov loj / duab (laser, plasma, waterjet).
Khoov (Forming):Superior bendability, tab sis ua raws li cov qauv (CEN / TR 10347) rau kev pom zoo, tshwj xeeb tshaj yog xav txog thickness.
Machining:Yooj yim rau tshuab, tab sis xav tau cov cuab yeej tsim nyog thiab teeb tsa.
Vuam:
Preheating: Feem ntau yuav tsum tau; siv cov hluav taws xob qis qis kom txo qis preheating.
Thaum tshav kub kub input: tswj cov cua sov input kom tswj tau txhua yam khoom; cov tswv yim siab tuaj yeem ua kom tawv tawv.
Tshaj tawm -Kev Kho Hniav Kub Kub (PWHT): Feem ntau tsis xav tau, tab sis yog tias xav tau rau kev tsim / kev cai, ua haujlwm ntawm 530-560℃.
Cov Qauv: Ua raws li EN 1011 cov lus pom zoo.
Nto tiav:Yuav muab tau descaled los yog primed raws li kev pom zoo.
Daim ntawv thov
Cov cuab yeej nqa nqa: Nws yog dav siv nyob rau hauv qhov tseem ceeb load-cov kabmob ntawm cov khoom nqa nqa, suav nrog mobile cranes, loader cranes, thiab aerial work platforms. Cov khoom siv no xav tau cov ntaub ntawv uas tuaj yeem tiv taus lub zog tensile thiab dynamic loads thaum ua haujlwm. HSLA structural steel lub siab yield thiab tensile lub zog ua kom ruaj khov lifting kev ua tau zoo, thaum nws lub teeb yuag cov cuab yeej txo qhov hnyav tag nrho ntawm cov cuab yeej, nthuav lub voj voog khiav hauj lwm zoo thiab txhim kho kev ua haujlwm yooj yim yam tsis muaj kev nyab xeeb.
Hnyav Machinery: Cov hlau no yog qhov kev xaiv zoo tshaj plaws rau lub ntiaj teb- cov khoom siv txav (xws li excavators, bulldozers) thiab cov tshuab mining. Hauv cov chaw ua haujlwm hnyav xws li cov chaw tsim kho thiab cov mines, cov khoom siv feem ntau raug cuam tshuam, kev sib txhuam, thiab siab. HSLA steel lub zog zoo heev thiab hnav tsis kam txuas ntxiv lub neej kev pabcuam ntawm cov khoom tseem ceeb xws li thoob, thav duab, thiab taug qab nkawm khau, txo qis txij nkawm thiab sijhawm poob rau cov tshuab.
Kev thauj mus los: Nws ua lub luag haujlwm tseem ceeb hauv kev thauj mus los, siv rau hnyav- lub luag haujlwm trailer, semi-trailers, thiab tsheb lag luam loj. Rau ntev -nruab nrab thiab hnyav- thauj khoom thauj, txo lub tsheb hnyav yog qhov tseem ceeb rau kev txhim kho roj efficiency thiab muaj peev xwm thauj khoom. HSLA steel ua rau nyias nyias tab sis muaj zog cov qauv tsim, txhim kho cov khoom thauj -cov kabmob muaj peev xwm ntawm cov tsheb thauj khoom thaum txo cov roj noj, yog li txhawb kev lag luam kev lag luam ntawm kev thauj mus los.
Kev tsim kho: Hauv kev tsim kho vaj tse, nws yog siv rau hauv kev thauj khoom choj-cov kabmob, siab- lub zog steel ua haujlwm rau cov chaw tsim khoom loj, thiab cov thawv tshwj xeeb (xws li cov nkoj siab thiab cov thawv thauj khoom). Cov choj thiab siab -nce steel qauv xav tau cov khoom siv nrog kev ruaj khov thiab ua haujlwm ntev los tiv thaiv tej yam ntuj tso thiab ntev - lub sijhawm thauj khoom. HSLA steel ua tau raws li qhov yuav tsum tau ua, tso cai rau kev tsim cov qauv tsim ntau dua thiab txuag chaw tsim kho thiab cov nqi khoom siv.
Cov txiaj ntsig
Siab zog - rau - Qhov hnyav piv: Qhov no yog ib qho zoo tshaj plaws ntawm HSLA cov qauv hlau. Piv nrog rau cov pa roj carbon zoo tib yam, nws ua tiav lub zog siab dua nrog lub zog sib dua, ua kom muaj kev tsim qauv tsim qauv. Qhov no tsis tsuas yog txo tus nqi ntawm cov khoom siv raw tab sis kuj txo qis cov nqi tsim khoom, suav nrog kev txiav, vuam, thiab kev thauj mus los, nqa cov txiaj ntsig tseem ceeb rau kev lag luam.
Tus nqi -Cov: Nws ua tiav lub zog ua kom muaj zog los ntawm kev sib xyaw ua ke ntawm cov hlau nplaum thiab cov txheej txheem kho cua sov, tsis muaj kev cia siab rau cov khoom siv kim kim. Piv nrog rau siab -lub zog tshwj xeeb steels, HSLA steel tau qis dua kev yuav khoom thiab cov nqi ua haujlwm, thaum tuav cov khoom siv kho tshuab zoo, muab tus nqi siab -kev ua tau zoo piv rau loj- nplai engineering thiab khoom tsim khoom.
Ntau yam: Txawm tias nws lub zog siab, HSLA steel khaws cov txheej txheem zoo. Nws yog ib qho yooj yim rau tshuab, khoov, thiab weld, adapting rau ntau yam txheej txheem kev xav tau. Tsis muaj cov cuab yeej tshwj xeeb lossis cov txheej txheem cumbersome yuav tsum tau ua thaum lub sijhawm tsim khoom, ua kom muaj kev sib koom ua ke rau hauv cov kab tsim khoom uas twb muaj lawm thiab nthuav dav nws daim ntawv thov thoob plaws ntau qhov kev lag luam.
Thov ib tus kws tshaj lij hais lus rau S890QL los ntawm GNEE Steel.
Puas yog S890QL weldable?
Yog lawm, S890QL muaj weldability zoo. Preheating kom raug thiab tom qab-weld kho cua sov yog pom zoo kom tsis txhob txias cracking thiab ua kom muaj zog sib koom ua ke.
Dab tsi yog daim ntawv thov ntawm S890QL?
Nws yog feem ntau siv hauv crane booms, excavator thoob, choj Cheebtsam, offshore qauv, thiab lwm yam hnyav -load- cov khoom siv bearing xav tau lub zog siab.
Qhov kub preheating xav tau rau vuam S890QL?
Qhov kub preheating feem ntau yog 80-150 degree, nyob ntawm lub phaj thickness. Thicker phaj yuav tsum tau preheating ntau dua los tiv thaiv kev tawg.
Puas yog S890QL xav tau kev tshaj tawm -weld kev kho cua sov?
Nws raug pom zoo rau cov ntu tuab lossis siab - kev ntxhov siab pob qij txha. Ncej -weld tempering txo cov kev ntxhov siab uas seem thiab txhim kho qhov tawv tawv ntawm thaj chaw weld.
Dab tsi yog qhov ceev ntawm S890QL?
Qhov ceev ntawm S890QL yog kwv yees li 7.85 g / cm³, ib yam li cov pa roj carbon monoxide steels, yooj yim rau kev xam qhov hnyav hauv kev tsim.
Qhov kev xa khoom ntawm S890QL yog dab tsi?
Nws raug xa mus rau hauv quenched thiab tempered (Q&T) mob, ua kom cov khoom ruaj khov thiab ua haujlwm zoo ib yam thoob plaws tag nrho cov khoom.
Yuav ua li cas kuaj cov khoom siv kho tshuab ntawm S890QL?
Kev ntsuam xyuas suav nrog kev ntsuas tensile, kev sim cuam tshuam, ntsuas qhov nyuaj, thiab kev sim khoov, ua raws li EN 10025-6 txhawm rau txheeb xyuas kev ua raws li cov qauv.
S890QL puas tuaj yeem siv hauv kev tsim khoom crane?
Yog lawm, nws yog ib qho khoom siv zoo tshaj plaws rau crane booms, jibs, thiab thav duab, vim nws lub zog siab txo qhov hnyav thaum ua kom muaj peev xwm thauj khoom -cov kabmob.
Dab tsi yog qhov hardness ntau ntawm S890QL?
Qhov raug Brinell hardness ntawm S890QL yog 260-340 HBW, uas sib npaug zog thiab machinability rau ntau yam kev siv engineering.
S890QL puas tuaj yeem kho cua sov?
S890QL twb quenched thiab tempered. Kev kho cua sov ntxiv yuav tsum tau ua tib zoo tswj xyuas nws cov khoom siv kho tshuab thiab zam kev ua haujlwm tsis zoo.