ST52 Alloy Steel Yeeb Nkab: Cov Khoom Siv Hluav Taws Xob Ntau Yam
ST52 alloy steel yeeb nkab yog cov khoom siv dav siv carbon steel hauvmechanical manufacturing, hydraulic systems, thiab kev tsim kho tej yaam num, paub txog nwszoo zog, machinability, thiab nqi-effectiveness.
ST52 steel yeeb nkab specification
ST52 Alloy Steel Yeeb Nkab Txheej Txheem
(1) Txias Drawing (Cold Drawing)
Txheej txheem: Txias deformation yog siv los txhim kho qhov tseeb qhov tseeb thiab qhov chaw tiav.
Qhov zoo:
High precision ( puab txoj kab uas hla mus txog rauH8/H9).
Tsawg nto roughness (Ra Tsawg dua lossis sib npaug li 0.4 µm), haum rau honing lossis chrome plating.
Daim ntawv thov: Hydraulic lub tog raj kheej raj, precision mechanical Cheebtsam.
(2) Honing
Txheej txheem: Honing yog siv rau sab hauv phab ntsa los txhim kho smoothness thiab hnav tsis kam.
Qhov zoo:
Txhim kho roj zaj duab xis tuav, txo kev sib txhuam (0.2-0.4 hli).
Extens lub neej kev pab cuam ntawm hydraulic kheej kheej.
Daim ntawv thov: Hydraulic / pneumatic thooj voos kheej kheej, siv tshuab.
(3) Vuam
Txheej txheem: ST52 muaj qhov zoo weldability, tab sispreheating (150-200 degree)yog yuav tsum tau kom tsis txhob tawg.
Hom:
ST52.3 (welded yeeb nkab): Tus nqi qis dua, siv rau cov qauv dav dav.
Seamless ST52: Zoo dua tawg tiv thaiv rau siab - kev siv siab.
(4) Kev kho cua sov
Annealing: Relieves kev nyuaj siab thiab txhim kho ductility.
Quenching & Tempering: Txhim khu lub zog thiab toughness (Tensile zog 590-640 MPa).
(5) Kev kho deg
Chrome Plating: Hard chrome plating (10 µm ± 5) rau corrosion kuj (xws li, hydraulic rods).
Painting/Oiling: Kev tiv thaiv xeb rau kev khaws cia lossis siv sab nraum zoov.
ST52 Alloy Steel Yeeb Nkab Kev Ua Haujlwm Zoo
(1) Mechanical Properties
Siab zog:
Tensile zogQhov siab: 470-660 MPa (annealed).
Yield zog: Ntau dua lossis sib npaug rau 275 MPa (sib npaug rau16 Mn).
Zoo Ductility: Elongation15–21%, haum rau txias khoov / flaring.
(2) Siab thiab hnav tsis kam
Siab -Kev Ua Haujlwm Siab: Mus txog250bar ua(piv txwv li, siab- lub twj tso kua mis siab).
Hnav Resistance: Siv rau hauv cov kav dej twj tso kua mis, hydraulic kheej kheej.
(3) Kub Resistance
Luv -Term: Mus txog500 degree(zoo rau carbon steel).
Ntev -Lub Sij Hawm: Mus txog300 degree(Lub zog yuav txo qis tshaj qhov no).
(4) Cov kev txwv
Nruab nrab Corrosion Resistance: Yuav tsum tau chrome plating lossis pleev xim.
Vuam ceev faj: Cov pa roj carbon ntau sib npaug tuaj yeem ua rau cov kab mob khaub thuas txias; sivqis-hydrogen electrodes + preheating.
Cov cheeb tsam thov tseem ceeb
Hydraulic / Pneumatic Systems: Lub tog raj kheej (seamless ST52 nyiam tshaj welded).
Kev tsim kho tshuab: Excavator booms, qhob twj tso kua mis.
Automotive & Thauj: Tsav shafts, lifting khoom.
Lub tsev tsim: Tsis yog-load- cov kabmob txhawb nqa, cov kav dej thauj khoom.
