Khoom Description
Khoom Specifications
| Cov qauv |
ASTM A519 / ASME SA519 Cov Lus Qhia |
| Qib Steel | E3310,4012,4023,4024,4027,4028,4037,4042 4047,4063,4118,4130,4135,4137,4140,4142, thiab lwm yam. |
| Cov qauv sib npaug | TS EN 10297-1 / JIS G3441 / GB / T 8162 |
| Sab nraud Diameter (OD) | 5 hli-630mm |
| Phab ntsa Thickness (WT) | 1.5mm-50mm |
| Ntev | 6/12 m |
| Kev kho saum npoo | Dub, oiled, pickled, los yog ci tiav |
| Txheej txheem ntau lawm | txias kos rau ntawm mandrel |
| Qhov xwm txheej | + SR / + N / Q&T (cov neeg siv khoom tau teev tseg) |
Tom qab kev ntxhov siab-reliving los yog quench-thiab-kev kho mob, 4140 DOM tubing muaj qhov tsawg kawg nkaus lub zog ntawm 690 MPa (100 ksi) thiab qhov tshwj xeeb siab - siab load-cov kabmob muaj peev xwm; piv rau 1026 DOM tubing, nws tso cai rau txo qis hauv lub tog raj kheej phab ntsa thickness tshaj 25% thaum tsim hydraulic thooj voos kheej kheej tsim rau tib lub zog ua haujlwm.
Cov txheej txheem DOM ua tiav qhov roughness ntawm sab hauv ntawm Ra Tsawg dua lossis sib npaug ntawm 1.6 μm thiab tuav tswj nruj ntawm cov kab uas hla sab hauv (H8-H9 qib). Ua tsaug rau qhov no qhov tseeb qhov tseeb, cov tubing txuas nrog seamlessly nrog piston ntsaws ruaj ruaj, txo cov dej ntws tawm hydraulic thiab kev sib txhuam.
Tsis zoo li cov tsoos nyuaj -chrome-plated piston rods (xws li Ck45/1045 steel) uas yuav tsum tau muaj kev tho txawv, 4140 DOM precision steel tubing txo cov nyiaj siv ua haujlwm los ntawm 30%.
Customized Services
- TORICH muaj qhov sib sib zog nqus- qhov honing cov kev pabcuam, ua tiav cov kab nruab nrab sab hauv ntawm H7 thiab bore nto roughness ntawm Ra 0.4–0.8 μm (daim iav-zoo li tiav).
- Peb muab kev hnav-tiv taus thiab tiv thaiv- xeb nto plating, nrog rau cov tawv chrome plating rau lub bore (nrog rau txheej thickness ntawm 0.03-0.15 hli rau ib sab thiab hardness ntawm HV 800–1000 / HRC 60+) thiab tawv chrome plating rau sab nraud.
- Cov kev pabcuam tseem suav nrog cov xov hauv thiab sab nraud (UNF, metric M- xov, thiab trapezoidal / buttress threads), sealing groove tho txawv, thiab machining ntawm J-type, V-type, lossis U- hom weld bevels.
Tshuaj muaj pes tsawg leeg
| Lub ntsiab | C | Mn | Si | Cr | Mo | P (max) | S (max) |
| 4140 | 0.38–0.43 | 0.75–1.00 | 0.15–0.35 | 0.80–1.10 | 0.15–0.25 | 0.035 | 0.040 |
Mechanical Properties
| Khoom | Tensile zog (MPa) | Yield zog (MPa) | Elongation (%) | Hardness (HB) |
| 4140 Q&T | 850–1000 | 655–850 | 15–25 | 197–235 |
Cov qhab nia xaiv tau
- 4130 yog qis dua -carbon version ntawm 4140; nws muaj superior weldability, yooj yim dua rau cua sov- kho, thiab yog tus nqi ntau dua - zoo, ua rau nws haum rau lub teeb - mus rau - nruab nrab-lub luag hauj lwm pneumatic thiab qis- siab hydraulic thooj voos kheej kheej ua hauj lwm ntawm siab ntawm 25 MPa los yog tsawg dua.
- 4340 suav nrog npib tsib xee rau hauv chromium-molybdenum alloy puag, ua rau tag nrho cov khoom siv kho tshuab uas yog 15% zoo dua li ntawm 4140; nws tsim nyog rau kev siv hauv aerospace, tiv thaiv, thiab loj- nplai mining machinery.
- EN 10297-1 42CrMo4 thiab JIS G3441 SCM440 yog cov qauv sib npaug rau 4140, nrog rau cov tshuaj muaj pes tsawg leeg uas sib haum yuav luag raws li 4140.
thaj chaw thov
ASTM A519 4140 DOM raj yog siv dav hauv kev tsim khoom thiab sib dhos ntawm ntau yam siab -kev ua haujlwm hydraulic thiab pneumatic lub tog raj kheej thoob plaws cov haujlwm no:
- Siv Machinery: Boom thiab thoob lub tog raj kheej rau excavators, loaders, thiab bulldozers
- Mining thiab Tunneling Equipment: Hydraulic txhawb ob txhais ceg, jacks, thiab propulsion cylinders rau tunnel tho txawv tshuab (TBMs)
- Cov Khoom Siv Muaj: Pwm-clamping thiab ejection thooj voos kheej kheej rau cov tshuab txhaj tshuaj molding, tuag- cov cav tov, thiab cov xovxwm
- Hnyav- Lub Tsheb Ua Haujlwm: Cov tsheb thauj khoom thauj khoom thauj khoom; crane outrigger thiab telescopic boom cylinders
- Zog thiab Marine: Offshore platform leveling systems; rooj vag ua haujlwm lub tog raj kheej rau cov chaw nres tsheb hydroelectric
- Pneumatic Systems: Siab - siab ua pa lub tog raj kheej; siab - cua compressor lub tog raj kheej
Khoom Qhia
Cov khoom siv kuaj
Khoom siv Hoobkas
Cov khoom siv Pickling
Cov khoom ntim
FAQ
Q: Dab tsi yog qhov kev xa khoom hardness ntawm 4140 DOM raj, thiab nws puas tsim nyog rau kev ua haujlwm ntxiv?
A: Nws tau muab rau hauv qhov kev ntxhov siab-relieved annealed mob, nrog hardness feem ntau tswj ntawm HRC 22 thiab 32. Qhov ntau yam no ua kom zoo hnav tsis kam thaum ua tiav kev ua haujlwm tom qab milling, drilling, thiab tapping.
Q: Dab tsi yog qhov txawv ntawm ASTM A 519 4140 DOM tubing thiab 4140 Quenched thiab Tempered (QT) bar Tshuag?
A: DOM tubing yog siv nyob rau hauv txias - kos lub xeev, muab lub hauv paus muaj zog thiab zoo toughness. Nyob rau hauv sib piv, 4140 QT bar Tshuag yuav tsum tau ntxhib machining ua raws li los ntawm kev kho cua sov, nrog rau cov txheej txheem ntau lawm. DOM tubing yog tus nqi ntau dua - zoo thiab zoo dua rau kev siv ncaj qha raws li lub tog raj kheej chim.
Q: Koj puas tuaj yeem muab honed tubing nrog H7 sab hauv txoj kab uas hla?
A: Muaj tseeb tiag. Thaum DOM tubing feem ntau tuaj nrog H8 kam rau ua, yog tias koj qhov kev sib khi yuav tsum nruj heev, peb tuaj yeem ua qhov sib sib zog nqus ntxiv - qhov honing kom ua tiav H7 kam rau ua, nrog rau zoo dua roundness thiab ncaj.
Cim npe nrov: 4140 dom tubing, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, customized, lag luam wholesale, nqe, OEM, zeb, tsim, kev muag khoom
