S890 qwyog tus qauv European (EN 10025-6) siab- lub zog ntawm cov qauv hlau, paub txog nws qhov tshwj xeeb yield zog (890 MPa), ua tiav los ntawm quenching thiab tempering ('Q'), thiab zoo kub tsis zoo cuam tshuam toughness ('L' qhia txog kev sim ntawm -40 degree). Nws yog siv rau hauv cov ntawv thov xws li cranes, txuas hniav, thiab kev thauj mus los hnyav, muab lub zog thiab kav ntev thaum seem weldable thiab formable, tso cai rau sib dua, muaj zog tsim.
Cov yam ntxwv tseem ceeb
S: Steel Qauv
890: Yam tsawg kawg nkaus lub zog ntawm 890 Megapascals (MPa)
Q: Quenched thiab Tempered (ib txheej txheem kev kho cua sov)
L: Tsawg kub cuam tshuam toughness (kuaj ntawm -40 degree)
Khoom & Daim Ntawv Thov
Siab zog: Ntau tshaj peb zaug muaj zog dua li cov qauv steel, zoo tagnrho rau kev thauj khoom -cov kabmob.
Weldability zoo: Txawm tias nws lub zog, nws kuj yooj yim rau vuam thiab fabricate.
Durable: Ua tau zoo nyob rau hauv cov xwm txheej hnyav vim nws qhov qis - qhov kub thiab txias tsis kam.
Daim ntawv thov: cranes, mobile platforms, txuas hniav, tsheb thauj mus los hnyav, nqa khoom, thiab cov thawv tshwj xeeb.
Yuav ua li cas tshuab S890QL steel?
Machining S890QL steel yog ib qho nyuaj thiab tshwj xeeb txheej txheem vim nws qhov hnyav hnyav (feem ntau 280-360 HBW) thiab lub zog siab heev (890 MPa tawm los). Kev vam meej yuav tsum tau ua kom zoo tshaj plaws, kev teeb tsa nruj, thiab kev tswj xyuas nruj kom tsis txhob muaj cov cuab yeej siv ntau dhau, ua kom tsis zoo, lossis ua haujlwm puas.
1. Cov Ntsiab Lus Tseem Ceeb
Kev hnav cov cuab yeej ceev ceev: Siab hardness thiab abrasive alloy carbides ua rau ceev ntug degradation.
High Cutting Forces: Xav tau lub tshuab siab tshaj plaws thiab kev sib tw rigidity los tiv thaiv chatter / vibration.
Thaum Tshav Kub Kub: Kev sib txhuam hnyav ua rau muaj cua sov siab, ua rau muaj kev pheej hmoo ntawm cov cuab yeej tsis ua haujlwm thiab muaj peev xwm hloov pauv ntawm cov hlau cua sov- kho cov khoom.
Kev Ua Haujlwm Hardening: Kev ua haujlwm tsis raug (xws li, tsis pub noj, hnav cov cuab yeej) tuaj yeem ua kom tawv nqaij ntxiv, ua rau kev hla dhau nyuaj dua.
2. Kev xaiv cov cuab yeej
Khoom siv: Siv cov hwm zoo- qib carbide (qib micro-grain zoo li C3/C4) nrog TiAlN- lossis AlCrN-raws li txheej. Rau hnyav roughing, ceramic inserts (Si₃N₄ lossis Al₂O₃-based) yuav siv tau nyob rau hauv qhov chaw ruaj khov, kev kub ceev.
Geometry: Cov kaum sab xis zoo, cov npoo ntse, thiab polished flutes kom txo tau txiav quab yuam thiab cua sov. Cov cuab yeej muaj zog (piv txwv li, hydraulic lossis shrink-fit) yog qhov tseem ceeb rau kev ruaj ntseg.
3. Kev Txiav Txim (Cov ntsiab lus pib dav dav)
Txiav ceev (Vc): Tsawg mus rau nruab nrab - feem ntau 60-120 m / min rau tig nrog carbide. Pib ntawm qis kawg.
Feed Rate: Siv cov khoom noj kom txaus (xws li, 0.1–0.3 mm / rev rau tig) kom tsis txhob txhuam thiab ua haujlwm tawv.
Qhov tob ntawm Kev Txiav: Txaus los txiav hauv qab cov txheej txheej tawv tawv (Ntau dua lossis sib npaug li 0.5 hli rau kev ua tiav).
Nco tseg: Parameters yuav tsum tau kho raws li cov cuab yeej hnav thiab tshuab rigidity. Nco ntsoov xa mus rau cov lus pom zoo ntawm tus neeg muab khoom siv.
4. Coolant & Lubrication
High-pressure coolant (Ntau dua los yog sib npaug rau 70 bar) yog pom zoo kom dissipate tshav kub, txhim kho nti khiav tawm, thiab txuas lub neej ntawm cov cuab yeej.
Siv emulsion los yog roj-raws li coolants nrog lubrication zoo.
5. Txheej txheem-Cov lus qhia tshwj xeeb
Tig: Siv qhov sib xws, lub teeb-rau-nruab nrab qhov tob ntawm kev txiav. Xyuas kom lub workpiece yog securely chucked.
Milling: Nyiam nce milling (down-milling) kom txo tau cua sov thiab ua hauj lwm hardening. Siv cov cuab yeej nrog txo tus naj npawb ntawm flutes kom zoo dua nti tshem tawm.
Drilling & Tapping:
Drilling: Siv cov laum carbide nrog cov cua txias sab hauv. Peck drilling yog qhov tseem ceeb rau qhov sib sib zog nqus qhov.
Tapping: Zam yog tias ua tau; nyiam xov milling rau kev tswj zoo dua thiab lub neej cuab yeej. Yog tias tapping yog tsim nyog, siv tus nqi hwm - qib high-strength kais dej thiab xyuas kom meej kev sib raug zoo.
6. Kev Npaj & Teeb
Tshem Tawm Hard Surface Scale: Cov phaj xa khoom feem ntau muaj tawv tawv, decarburized. Tshem nws ntawm kev sib tsoo los yog ntxhib machining ua ntej ua tiav cov haujlwm.
Maximize Rigidity: Siv lub tshuab muaj zog tshaj plaws. Txo qhov overhang ntawm cov cuab yeej thiab workpieces. Cov tuav cov cuab yeej damped tuaj yeem pab txo kev vibration.
Cov ntaub ntawv technical
TS EN 10025-6 S890QL quenched thiab tempered steel phaj Cov tshuaj muaj pes tsawg leeg
| Qib | C % | Si% | Mn% | P % | S % | N % | B % | Cr% |
| S890 qw | 0.200 | 0.800 | 1.700 | 0.020 | 0.010 | 0.015 | 0.005 | 1.500 |
| Cu% | Mo% | Nb% | Ni% | Ti % | V % | Zr% | ||
| 0.500 | 0.700 | 0.060 | 2.000 | 0.050 | 0.120 | 0.150 |
EN10025-6 S890QL quenched thiab tempered steel phaj txhua yam khoom
| Qib | Thickness (hli) | Tsawg-yield (Mpa) | Tensile (MPa) | Elongation (%) | Min Impact Zog | |
| S890 qw | 8mm-50mm | Min 890 Mpa | 940-1100 Mpa | 11% | -40 | Min 30 J |
| 51mm-100 hli | Min 830 Mpa | 880-1100 Mpa | 11% | -40 | Min 30 J | |
| 101mm-150mm | Min 800 Mpa | 820-1000Mpa | 11% | -40 | Min 30 J |
Yog xav paub ntxiv nyob rau hauv EN10025-6 S890QL quenched thiab tempered steel phaj zoo daim ntawv pov thawj los yog nug nyob rau hauv kev sib tw official hais, thov hu rau peb.
1. S890QL steel yog dab tsi?
S890QL yog qhov siab heev - lub zog quenched thiab tempered structural steel nrog qhov tsawg kawg nkaus yield zog ntawm 890 MPa, tsim los tuav zoo toughness ntawm qis kub mus rau -40℃.
2. Cov ntawv thov tseem ceeb ntawm S890QL yog dab tsi?
Nws yog siv nyob rau hauv ultra-hnyav mobile crane booms, advanced mining laum rigs, tub rog tsheb thav duab, thiab tshwj xeeb offshore Cheebtsam uas siab tshaj plaws lub zog - rau - luj piv yog ib qho tseem ceeb nyob rau hauv cov huab cua txias.
3. S890QL txawv ntawm S690QL li cas?
S890QL muaj lub zog tawm los ntau dua (890 MPa vs . 690 MPa) tab sis qis dua toughness thiab weldability, ua rau nws haum rau qhov hnyav dua - tseem ceeb heev tsis tau xav tau ntau daim ntawv thov.
4. Cov tshuaj muaj pes tsawg leeg ntawm S890QL yog dab tsi?
Nws muaj cov pa roj carbon tsawg, manganese, silicon, thiab micro- alloys xws li niobium, vanadium, thiab boron, nrog rau npib tsib xee, chromium, thiab molybdenum rau hardenability thiab toughness.
5. S890QL puas tuaj yeem welded yooj yim?
Tsis yog, vuam S890QL yog qhov nyuaj thiab yuav tsum tau ua cov txheej txheem nruj: qis- cov khoom siv hydrogen, preheating (feem ntau 150-}200 degree), tswj cov cua sov, thiab feem ntau tom qab vuam cua sov kho.
6. Cov qauv twg siv rau S890QL steel?
Nws feem ntau yog tswj hwm los ntawm European tus qauv EN 10025-6 rau quenched thiab tempered high-strength structural steels.
7. Puas yog S890QL corrosion resistant?
Tsis yog, S890QL tsis yog corrosion{1}}tiv taus thiab yuav tsum muaj cov txheej txheem tiv thaiv xws li kev pleev xim, galvanizing, lossis tshwj xeeb plating rau siv nyob rau hauv ib puag ncig corrosive.
8. Yuav ua li cas tshuab S890QL steel?
Machining S890QL yog qhov nyuaj vim nws qhov siab hardness; nws yuav tsum tau siv cov cuab yeej carbide muaj zog, kev txiav qeeb qeeb, siab - siab txias txias, thiab kev teeb tsa nruj.
9. Tus nqi ntawm S890QL steel phaj yog dab tsi?
S890QL tseem kim dua li qis dua -qib steels, nrog cov nqi sib txawv raws li tuab, ntau, thiab ntawv pov thawj, feem ntau yog li ntawm € 2,500 txog € 4,500+ ib tuj.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
