42CrMo4 precision txias drawn honed hlabyog chromium -molybdenum alloy steel cylinder chim nkag rau hauv quenched thiab tempered (+QT) mob, nrog lub bore tiav los ntawm honing rau ISO H8 kam rau ua thiab ib tug nto roughness ntawm Ra 0.4 µm los yog zoo dua. Nyob rau hauv lub xeev + QT qhov tsawg kawg nkaus yield zog mus txog 900 MPa (130 ksi) rau phab ntsa mus txog 16 hli, muab roughly 1.9 npaug ntawm lub siab muaj peev xwm ntawm E355 honed raj ntawm tib geometry. Ua ntej koj qhia ib qho, txiav txim peb yam - qhov kev xa khoom, cov phab ntsa tuab thiab txoj kab uas hla - vim tias tag nrho peb txav tus lej koj tau tsim rau.
42CrMo4 yog European chromium-molybdenum alloy steel: cov khoom siv tooj1.7225hauvTS EN 10083-3, thiab kev lag luam sib npaug ntawm AISI4140, JIS SCM440, GB 42CrMo thiab BS EN19. Qhov "42" yog qib carbon (kwv yees li 0.42%), "CrMo" chij chromium thiab molybdenum, thiab "4" yog qib ntsuas. Raws li quenching-thiab- tempering steel nws yog tsim rau siab zog nrog toughness, uas yog raws nraim li qhov siab -siab hydraulic lub tog raj kheej chim xav tau.
Ib 42CrMo4precision txias drawn tubepib raws li lub raj seamless, yog txias txias rau nruj sab nraud - txoj kab uas hla tolerances, ces muaj nws sab hauv nto tiav los ntawm honing (los yog skiving thiab cov menyuam burnishing) yog li cov bore npaj tau txais lub piston foob yam tsis muaj ntxiv machining. Peb muab nws nyob rau hauv lub quenched thiab tempered mob rau siab tshaj plaws lub zog, los yog kev nyuaj siab-relieved rau yooj yim vuam thiab machining. Yam khoom yog OD 20-520 mm, ID 12-510 mm, phab ntsa 2-40 mm thiab ntev txog 16 m, nrog EN 10204 3.1 ntawv pov thawj.
Kev Pab Cuam
| Parameter | Muaj peev xwm |
|---|---|
| Khoom siv / qauv | 42CrMo4 (1.7225), EN 10083-3 |
| Sab nraud txoj kab uas hla (OD) | 20-520 hli (0.8-20.5 nti) |
| Sab hauv txoj kab uas hla (ID / bore) | 12-510 hli (0.5-20.1 nti) |
| Phab ntsa thickness | 2-40mm (0.08-1.57 nyob rau hauv) |
| Ntev | Txog li 16 m (52 ft), txiav kom txiav |
| Kev xa khoom | + QT (quenched thiab tempered) los yog + SR (kev nyuaj siab relieved) |
| Tube txheem | TS EN 10305-1 / DIN 2391 |
| Daim ntawv pov thawj | EN 10204 3.1; thib peb- tog tshuaj ntsuam muaj |
Dimensions saum toj no yog cov feem ntau mills; paub meej tias qhov tseeb OD / ID / phab ntsa qhov rais thiab qhov ntev tshaj plaws tiv thaiv tam sim no ntau lawm thaum koj xaj.
Khoom Qib thiab Cov Qauv
Lub npe qib tsuas yog ib nrab ntawm kev yuav khoom. Cov lus hauv qab no cais dab tsi EN 10083-3 kho los ntawm qhov koj yuav tsum tseem hais txog qhov kev txiav txim - thawj qhov chaw ntawm "nws tuaj txog tab sis nws tsis yog qhov kuv kos."
| Kho los ntawm EN 10083-3 / tube tus qauv | Qhia rau koj qhov kev txiav txim |
|---|---|
| Cov tshuaj muaj pes tsawg leeg (C, Cr, Mo, Mn, P, S) | Sab nraud txoj kab uas hla, bore (ID) thiab phab ntsa thickness, los yog bore thiab phab ntsa |
| Mechanical zog nyob rau hauv lub npe xa khoom mob thiab thickness | ID kam rau ua qib (H8 default) thiab Ra |
| Cov ntaub ntawv naj npawb 1.7225 thiab qib tus kheej | Kev xa khoom (+ QT lossis + SR) |
| Kev tshuaj xyuas thiab daim ntawv pov thawj hauv paus (thaum 3.1 raug txiav txim) | Tube qauv (EN 10305-1 lossis DIN 2391) thiab hom ntawv pov thawj |
Nws raug txheeb xyuas li cas.Los ntawm qib "42CrMo4," cov khoom siv naj npawb 1.7225, thiab cov khoom siv niam txiv tus qauv EN 10083-3 - yeej tsis yog "EN 10305-1 42CrMo4," uas tsis muaj nyob. TS EN 10305-1 yog qhov seamless txias drawn precision raj txheej txheem uas teeb tsa qhov ntev ntev; nws cov qhab nias yog E235, E355 thiab zoo sib xws, tsis yog 42CrMo4. A 42CrMo4 honed raj raug txiav txim los ntawm kev pom zoo los ntawm 42CrMo4 cov ntaub ntawv mus rau EN 10305-1 los yog DIN 2391 tolerances.
Mechanical Properties
42CrMo4 txhua yam khoom koj tsim los tsis yog ib daim duab. Lub zog tawm los sib txawv nrog kev xa khoom thiab phab ntsa thickness; cov nplooj ntawv catalog luam tawm "900 MPa" thiab nres, tab sis tus nqi ntawd yog qhov+ QT yam tsawg kawg nkaus rau phab ntsa txog 16 hli. Ob yam txav nws, thiab ob qho tib si tseem ceeb rau lub tog raj kheej lub tog raj kheej: qhov kev xa khoom thiab cov phab ntsa tuab.
Yield zog los ntawm phab ntsa Thickness thiab kho cua sov
Cov lus hauv qab no yog quenched-thiab-tempered (+QT) hnab ntawv los ntawm EN 10083-3. Tawm los poob raws li seem loj hlob vim hardenability yog finite - qhov no yog tus naj npawb uas txiav txim siab koj tsim, tsis yog lub headline 900 MPa.
| Phab ntsa / seem t (mm) | Tawm tswv yim Rp0.2 min (MPa) | Tensile Rm (MPa) | Elong. A5 min (%) | Liab. ntawm thaj tsam Z min (%) | Impact ISO-V min (J) |
|---|---|---|---|---|---|
| Tsawg dua los yog sib npaug li 16 | 900 (130 hli) | 1100-1300 | 10 | 40 | 30 |
| >16-40 | 750 (109 hli) | 1000-1200 | 11 | 45 | 35 |
| >40-100 | 650 (94 hli) | 900-1100 | 12 | 50 | 35 |
| >100-160 | 550 (80 hli) | 800-950 | 13 | 50 | 35 |
| >160-250 | 500 (73 hli) | 750-900 | 14 | 55 | 35 |
Vim li cas ob lub zog tshwm sim rau ib qib.Qhov tsawg kawg nkaus 660 MPa koj pom ntawm qee lub rooj muag khoom yog qhovtxias txias thiab kev ntxhov siab-relievedmob (+BKS / +SR), tsis yog +QT. Yog tias koj daim duab hu rau 900 MPa tawm los, koj yuav tsum xaj + QT; ib qho kev ntxhov siab-relieved raj yuav ntawv pov thawj ntawm kwv yees li 660 MPa thiab ua tsis tiav 900 MPa tsim. Tsim kom muaj txiaj ntsig zoo dua li cov kab lus hauv kab ntawv yog qhov sib txawv ntawm lub thoob ruaj ntseg thiab ib qho uas yog 25-30% overstressed.
Tensile zog thiab hardness
Nyob rau hauv lub + QT mob tensile lub zog khiav 1100-1300 MPa rau nyias phab ntsa mus rau 750-900 MPa rau cov thickest seem, ua ke nrog cov yield value saum toj no. Tom qab quenching thiab tempering, tej hardness yog hais txog 28-36 HRC (kwv yees li 270-340 HBW) nyob ntawm tempering kub; daim duab tau tshaj tawm rau ib lub tshav kub ntawm daim ntawv pov thawj, tsis yog raws li tus nqi ruaj khov. (Ib daim duab "53 HRC" hais txog lwm qhov yog hais txogntonplaim taws los yog induction hardening, tsis yog lub raj ntau.)
Tshuaj muaj pes tsawg leeg
Cov lus hauv qab no yog lub hnab ntawv - tsom xam los ntawm EN 10083-3. Ib lub zeb tswj sab hauv feem ntau nruj dua; lees txais kev tiv thaiv lub qab nthab ntxiv rau cov khoom lag luam-kev ntsuas siab, thiab nyeem cov txiaj ntsig tiag tiag los ntawm 3.1 daim ntawv pov thawj.
| Element | Cov ntsiab lus | Dab tsi nws tswj |
|---|---|---|
| Cov pa roj carbon (C) | 0.38-0.45 % | Lub zog thiab hardenability; teeb lub quench teb |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.40% | Deoxidation |
| Manganese (Mn) | 0.60-0.90 % | Hardenability thiab toughness (ceeb toom 4140 tso cai 0.75-1.00%) |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025% | Kev tswj brittleness |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.035% | Kev tswj hwm suav nrog |
| Chromium (Cr) | 0.90-1.20 % | Hardenability, hnav thiab corrosion kuj |
| Molybdenum (hli) | 0.15-0.30 % | Temper resistance thiab siab -kub muaj zog |
EN 10083-3 suav nrog Option clause; qhov twg nws siv, cov khoom lag luam-kev soj ntsuam kev kam rau siab ntxiv rau lub ladle txwv. Daim ntawv pov thawj yuav tsum qhia qhov tseeb qhov ntsuas kub yog li koj cov txheej txheem vuam thiab kev tsim qauv siv cov lej tiag.
Kev kho cua sov thiab kev xa khoom
42CrMo4 yuav luag ib txwm siv nyob rau hauv lub tshav kub- kho mob, thiab tus mob yog dab tsi teem lub zog koj tsim rau. Cov kev xaiv hauv qab no yog cov cylinder -tube cov neeg yuav khoom tiag tiag.
| Qhov xwm txheej | Cim | Min. yield (MPa, Tsawg dua lossis sib npaug li 16 hli) | Thaum xaiv nws |
|---|---|---|---|
| Quenched thiab tempered | + QT | 900 | Lub zog siab tshaj plaws thiab lub peev xwm siab; siab -siab chim chim |
| Cold drawn, stress relieved | +SR / +BKS | ~660 | Yooj yim vuam thiab machining, nruab nrab siab |
| Txias tiav (nyuaj) | +BK | siab tshaj li - kos | Qhov twg lub raj yog tom qab machined thiab kub kho los ntawm tus neeg siv |
| Li qub | +N | qis | Tsis tshua muaj rau 42CrMo4 chim; xaiv rau uniform softness |
Xaiv qhov kev xa khoom
Welded lub tog raj kheej chim.Order +QT rau lub zog, tab sis npaj preheat thiab post-weld stress relief (saib weldability) - los yog txais +SR yog tias tus qauv tso cai rau qis yield.
Honed tom qab hnyav machining.+ QT tuav qhov ntev zoo tshaj plaws tom qab ua tiav machining; qhia txog kev kho cua sov zaum kawg ua ntej honing.
Tsis yog - lub tes tsho hnyav.+ SR lossis + BK txaus thiab pheej yig dua rau kev ua haujlwm.
Kev ntsuas siab los ntawm phab ntsa Thickness
Lub cylinder chim nqa lub siab ntawm lub bore, thiab kev nyab xeeb siab nyob ntawm lub bore kab ntau npaum li cov tawm los. Lub rooj tshuaj ntsuam hauv qab no siv cov tuab -lub tog raj kheej (Lamé) kev sib raug zoo rau lub kaw- lub raj kawg ntawm cov khoom tawm, nrog rau 4: 1 tus qauv tsim ntawm + QT tawm los ntawm 900 MPa. Nws yog ib qho kev tshuaj ntsuam xyuas, tsis yog hloov rau qhov project tsim.
| Tus ID nkag mus (mm) | Phab ntsa (mm) | Yield ntawm bore (MPa) | Tso cai siab (MPa) | Tso cai siab (bar) |
|---|---|---|---|---|
| 100 | 8 | 115 | 28.9 | 289 |
| 100 | 10 | 138 | 34.4 | 344 |
| 100 | 12 | 157 | 39.4 | 394 |
| 100 | 15 | 184 | 45.9 | 459 |
Nyeem qhov no ua ntej yuav hais ib lub siab.Tib lub 10 hli phab ntsa nqa txog 344 bar ntawm 100 mm bore tab sis deb tsawg dua ntawm 200 mm bore - siab muaj peev xwm poob thaum lub bore loj hlob. Thiab yog tias koj phab ntsa siab tshaj 16 hli, tus qauv tsim tawm poob mus rau 750 MPa (16-40 mm) lossis 650 MPa (40-100 mm), txo qhov ntsuas dua. Lub siab tus lej teev yam tsis muaj lub bore kab tsis tuaj yeem kuaj xyuas, yog li nco ntsoov qhia ob qho tib si.
Dimensional Tolerances thiab Surface Finish
Lub bore tiav yog qhov pom lub tog raj kheej pom, yog li cov qib kam rau ua thiab roughness tau teev tseg, tsis suav tias yog. Cov lus hauv qab no yog cov khoom siv txheem.
| Parameter | Muaj peev xwm |
|---|---|
| ID kam rau ua | ISO H7, H8, H9, H10 (H8 tus qauv) |
| Nto roughness (Ra) | Tsawg dua lossis sib npaug li 0.4 µm (Ra 0.3 µm raug rau H8) |
| Kev ncaj | Tsawg dua los yog sib npaug li 0.5 hli ib 'meter' |
| OD kam rau ua | Raws li EN 10305-1 / DIN 2391 kev txwv tsis pub rub tawm |
| Ntev | Txog li 16 m, txiav kom txiav |
Kev xaiv tus ID kam rau ua
Tus ID kam rau ua H8 yog peb tus qauv bore qib. Xaiv qib kam rau ua los ntawm piston foob lub chim yuav tsum lees txais, tsis yog los ntawm tus cwj pwm. H8 haum rau feem ntau cov ntsaws ruaj ruaj thiab khaws tus nqi tsim nyog; H7 yog rau nruj- tshem tawm lossis siab - lub tog raj kheej ceev; H9 / H10 yog qhov siv tau qhov twg lub foob tsim ua rau muaj kev sib kis ntau dua. Qhia meej H8 los ntawm lub neej ntawd thiab hloov kho tsuas yog thaum lub foob xav kom nws tsis txhob them rau qib koj tsis xav tau.
Cov khoom siv qib sib piv
42CrMo4 zaum saum lub honed- raj lub zog ntaiv. Cov lus hauv qab no tso nws tawm tsam cov qib buyers hnyav nws tiv thaiv; txhua tus nqa tib lub bore tiav, yog li qhov sib txawv yog lub thoob lub zog thiab qhov hnyav.
| Qib | Txuj | + QT/min. yield (tsawg dua lossis sib npaug li 16 hli, MPa) | Siv |
|---|---|---|---|
| 42CrMo4 | EN 10083-3 (1.7225) | 900 | Siab -siab, qaug zog-tseem ceeb |
| 20mnv 6 | EN 10297-1 (1.5228) | 470 (+N) | Nruab nrab - siab chim chim, weldability zoo dua |
| E355 | EN 10305-1 (1.0580) | 470 (+N) | General hydraulic thooj voos kheej kheej, nqi -tsav |
| 4140 | ASTM A29 (sib npaug) | 900 | Ib yam li 42CrMo4 hauv nti-cov haujlwm ua haujlwm |
Xaiv 42CrMo4 thaum qhov hnyav ntawm phab ntsa, siab lossis qaug zog lub neej quab yuam lub cev muaj zog; poob rau E355 lossis 20MnV6 thaum lub luag haujlwm yog nruab nrab thiab weldability lossis tus nqi coj mus. Nco ntsoov tias 42CrMo4 sib npaug rau 4140 yog tib yam alloy - tsuas yog cov manganese txwv txawv - yog li lawv tuaj yeem hloov pauv tau thaum daim ntawv pov thawj chemistry tau lees paub.
Carbon sib npaug thiab Weldability
EN 10083-3 teeb tsa tsis muaj cov pa roj carbon sib npaug, yog li peb suav nws los ntawm IIW formula:CEV=C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15. Rau cov cua sov (C 0.42, Mn 0.75, Cr 1.05, Mo 0.20) uas yog hais txog0.80. Raws li txoj cai ntawm tus ntiv tes xoo: CEV ze 0.80 txhais tau tias 42CrMo4 yuav tsum tsis txhob welded zoo li cov hlau me me. Preheat rau 150-250 degree, tuav interpass kub nyob ib ncig ntawm 200-300 degree, thiab siv cov kev ntxhov siab tom qab vuam. Daim ntawv pov thawj tsis luam CEV cia li - thov nws ntawm qhov kev txiav txim kom koj cov txheej txheem vuam muaj cov lej tiag tiag, tsis yog npe qib.
Kev tsim khoom
Seamless tube ua.Ib qho pierced thiab dov seamless niam txiv raj hauv 42CrMo4, feem ntau twb nyob rau hauv + QT mob.
Txias daim duab.Lub raj yog rub los ntawm kev tuag kom nruj rau sab nraud txoj kab uas hla thiab txhim kho qhov chaw thiab qhov ncaj - "precision txias drawn" kauj ruam.
Ncaj ncaj.Lub raj rub tau ncaj nraim kom tsawg dua lossis sib npaug li 0.5 mm / m yog li lub chim khiav muaj tseeb hauv lub tog raj kheej.
Nkoj machining (skiving).Rau cov qhab nia nruj, lub bore yog skived mus ze rau - qhov kawg loj thiab geometry.
Honing.Ib lub pob zeb abrasive ua tiav qhov bore mus rau ISO H8 thiab Ra Tsawg dua lossis sib npaug li 0.4 µm, tawm hauv tus ntoo khaub lig-hatch ib lub foob xav tau.
Kev tshuaj xyuas thiab ntawv pov thawj.Dimensions, roughness, straightness thiab chemistry raug kuaj thiab EN 10204 3.1 daim ntawv pov thawj muab.
Xaus kev ua tiav thiab ntim khoom.Qhov xaus yog txiav square, tiv thaiv, thiab lub raj yog bundled thiab khaws cia rau cov khoom xa tuaj.
Kev Tswj Xyuas Zoo thiab Kev Tshawb Fawb
| Tshawb xyuas | Qhov nws ua pov thawj |
|---|---|
| Tshuaj ntsuam xyuas | Qib yog 42CrMo4, tsis yog hloov pauv |
| Tensile thiab yield test | Lub zog sib tw nrog + QT / + SR qhov kev txiav txim |
| Kev ntxhib los mos (Ra) | Seal yuav pw hauv tsis muaj qhab nia |
| ID ntsuas thiab kam rau ua | Bore txais lub piston thiab foob |
| Kev ncaj | Barrel khiav muaj tseeb nyob rau hauv lub tog raj kheej |
| Visual thiab kawg tiav | Tsis muaj qhab nia, corrosion lossis puas kawg |
| EN 10204 3.1 daim ntawv pov thawj | Txhua qhov cua sov yog traceable rau cov nqi kuaj |
Hardness thiab kev cuam tshuam tau lees paub los ntawm lub zeb uas tau teev tseg; weldability data (CEV) yog ib qho kev thov cais, tsis siv rau ntawm daim ntawv pov thawj.
Yog vim li cas Source 42CrMo4 Honed Tubes los ntawm GNEE Yeeb Nkab
Khoom siv traceability.Txhua lub raj xa nrog EN 10204 3.1 daim ntawv pov thawj txuas chemistry thiab lub zog rau cov cua sov.
Kev tswj xyuas.Peb muab + QT lossis + SR rau koj daim duab thiab paub meej tias cov txiaj ntsig ntawm daim ntawv pov thawj, tsis yog lub npe qib.
Dimensional muaj peev xwm.H7-H10 bores, Ra Tsawg dua lossis sib npaug li 0.4 µm thiab qhov ncaj tsawg dua lossis sib npaug li 0.5 mm / m, nrog rau kev tshuaj xyuas thib peb.
Kev lag luam thaub qab.ISO 9001 thiab CE, kev sib tw zeb- tus nqi ncaj qha, thiab pab pawg kws tshaj lij uas xa rov qab cov lus pom zoo thiab lub sijhawm ua haujlwm hauv 24 teev.
Kev kuaj thiab tshuaj xyuas
Ntim thiab shipping
Xa koj lub bore, phab ntsa, ntev thiab tus me nyuam qhov xwm txheej - peb pab neeg technical yuav lees paub qhov specification tiv thaiv cov zeb ntau yam tam sim no thiab xa rov qab cov lus hais nrog lub sijhawm ua haujlwm hauv 24 teev.
Thov ib tug 42CrMo4 Honed Tube Quote
FAQ
42CrMo4 honed raj siv rau dab tsi?
A 42CrMo4 honed tube yog siv los ua lub chim siab ntawm - siab hydraulic thiab pneumatic thooj voos kheej kheej, thiab hauv cov tshuab hnyav, cov tshuab txhaj tshuaj molding, cov cuab yeej siv mining thiab lifting iav qhov twg lub bore yuav tsum foob ncaj qha rau lub piston yam tsis muaj kev siv tshuab ntxiv. Nws lub zog quenched thiab tempered cia lub phab ntsa nyias nyias muaj siab dua li E355 lossis 20MnV6 raj ntawm tib lub bore.
Lub zog ntawm 42CrMo4 honed raj yog dab tsi?
Nyob rau hauv lub quenched thiab tempered (+QT) mob, qhov tsawg kawg nkaus tawm lub zog yog 900 MPa (130 ksi) rau phab ntsa mus txog 16 hli, ntog mus rau 750 MPa ntawm 16-40 hli, 650 MPa ntawm 40-100 mm, 550 MPa ntawm 600 mm 160-250mm rau EN 10083-3. Tus nqi koj tsim los yog nyob ntawm koj phab ntsa thickness, tsis yog cov xov xwm 900 MPa. Lub raj muaj kev ntxhov siab (+ SR lossis + BKS) tsis muaj zog, nyob ib ncig ntawm 660 MPa yam tsawg kawg nkaus.
Puas yog 42CrMo4 zoo ib yam li AISI 4140?
Yog lawm, rau feem ntau cov khoom thiab engineering lub hom phiaj 42CrMo4 thiab AISI 4140 yog tib yam chromium-molybdenum alloy steel (cov ntaub ntawv tooj 1.7225). Qhov sib txawv tseem ceeb yog qhov txwv tsis pub muaj manganese: 42CrMo4 tso cai 0.60-0.90% Mn thaum 4140 tso cai 0.75-1.00%. JIS SCM440 thiab GB 42CrMo kuj yog kev lag luam sib npaug. Ib txwm lees paub qhov tseeb chemistry ntawm daim ntawv pov thawj 3.1, tshwj xeeb tshaj yog manganese.
Dab tsi ID kam rau ua thiab nto tiav kuv tuaj yeem tau txais ntawm 42CrMo4 honed raj?
Lub honed bore yog muab rau ISO H7, H8, H9 los yog H10 kam rau ua, nrog H8 raws li tus qauv qib. Nto roughness yog Ra 0.4 micrometers lossis zoo dua, thiab Ra 0.3 micrometers yog qhov zoo rau H8 bore. Ncaj yog tuav mus rau 0.5 mm ib 'meter'. Kev xaiv ntawm qib kam rau ua raws li lub piston foob lub chim yuav tsum tau txais.
42CrMo4 honed raj puas tau welded?
Yog lawm, tab sis 42CrMo4 yog chromium-molybdenum steel nrog cov pa roj carbon siab sib npaug ntawm CEV 0.80, yog li nws yuav tsum tsis txhob welded zoo li cov hlau me me. Preheat rau 150-250 degC, tswj kev sib tshuam ntawm qhov kub ntawm 200-300 degC, thiab siv cov kev ntxhov siab tom qab vuam. Qhia qhov kev xav tau ntawm vuam ntawm qhov kev txiav txim, vim tias daim ntawv pov thawj zeb xeem tsis luam CEV txiav.
Dab tsi yog qhov txawv ntawm 42CrMo4 thiabE355 Honed tube?
Ob leeg yog honed lub tog raj kheej chim, tab sis 42CrMo4 (1.7225, EN 10083-3) yog ib tug chromium-molybdenum alloy steel quenched thiab tempered mus rau qhov tsawg kawg nkaus yield ntawm 900 MPa, thaum E355 (1.0580) yog ib tug tsawg kawg nkaus steel hlau 470 MPa rau. Qhov ntawd yog hais txog 1.9 npaug ntawm lub peev xwm siab ntawm tib lub geometry. Xaiv E355 rau nruab nrab-siab, tus nqi-tsav lub tog raj kheej thiab 42CrMo4 thaum phab ntsa hnyav, siab lossis qaug zog lub neej ua rau lub cev muaj zog.
Cov qauv twg siv rau 42CrMo4 honed hlab?
Cov khoom siv yog 42CrMo4 rau EN 10083-3 (khoom siv 1.7225). Lub raj xa mus rau qhov ntev ntev ntawm EN 10305-1 los yog dav siv DIN 2391 rau seamless txias drawn precision raj, nrog lub bore tiav los ntawm honing. Nco ntsoov tias 42CrMo4 tsis yog qib teev tseg hauv EN 10305-1; nws tau txiav txim los ntawm kev pom zoo los ntawm 42CrMo4 cov ntaub ntawv rau cov raj tolerances.
Kuv yuav qhia li cas rau 42CrMo4 honed raj ntawm kev yuav khoom?
Lub xeev: cov khoom siv 42CrMo4 (EN 10083-3, 1.7225); kev xa khoom + QT lossis + SR; Tube qauv EN 10305-1 lossis DIN 2391; sab nraud txoj kab uas hla, bore (ID) thiab phab ntsa thickness, los yog bore thiab phab ntsa; qhov ntev thiab qhov ntau; ID kam rau ua qib (H8 default) thiab Ra; kawg tiav; thiab daim ntawv pov thawj hom EN 10204 3.1. Peb yam khoom uas cov neeg yuav khoom feem ntau tshem tawm yog cov xwm txheej xa khoom, txoj kab uas hla thiab qib kam rau ua.
