Qaadista Maalgelinta Auto Qayb ka mid ah Chrome Molybdenum 42CrMo4 Alloy Steel

Molybdenum-ka caadiga ah ee Chrome 42CrMo4 alloy steelwax soo saarka maalgashigaee quful jillaab baabuur lehdaaweynta dusha sare ee electrophoresis.

42CrMo4 (1.7225) laga soo bilaabo qeexitaanka EN 10083-3, kaas oo inta badan kuleyl lagu daweeyo QT (Queching + Tempering), ayaa si ballaaran loo isticmaalaa si loo soo saaro shubista maalgashiga. waxay leedahay awood sare, adkaansho sare, adkeysi wanaagsan, xanaaq jilicsan, xad daal badan, iska caabin wanaagsan ka dib deminta iyo xanaaqa, iyo saameyn heerkul hooseeya oo wanaagsan. Darajada u dhiganta 42CrMo4 waa 4140 (ASTM, USA) iyo 42CrMo (GB/T 3077, Shiinaha)

42CrMo4 guryaha birta ah ee heerkulka qolka ee xaalada la demiyay iyo kuwa xanaaqsan.

Awood soo saar:
≥900 N/mm2 (d≤16mm, t≤8mm)
≥750 N/mm2 (16 <d ≤ 40mm, 8 <t ≤ 20mm)
≥900 N/mm2 (40 <d ≤ 100mm, 20 <t ≤ 60mm)
≥900 N/mm2 (100 <d ≤ 160mm, 60 <t ≤ 100mm)
≥900 N/mm2 (160 <d ≤ 250mm, 100 <t ≤ 160mm)

Xoogga xajin:
1100-1300 N/mm2 (d≤16mm, t≤8mm)
1000-1200 N/mm2 (16 <d ≤ 40mm, 8 <t ≤ 20mm)
900-1100 N/mm2 (40 <d ≤ 100mm, 20 <t ≤ 60mm)
850-950 N/mm2 (100 <d ≤ 160mm, 60 <t ≤ 100mm)
750-900 N/mm2 (160 <d ≤ 250mm, 100 <t ≤ 160mm)

Dheeraynta:≥ 10% (d≤16mm, t≤8mm)

Awoodda saamaynta muddada dheer ee tijaabada Charpy-V-notch:
≥35J (16 <d ≤ 250mm, 8 <t ≤ 160mm)
≥11% (16 <d ≤ 40mm, 8 <t ≤ 20mm)
≥12% (40 <d ≤ 100mm, 20 <t ≤ 60mm)
≥13% (100 <d ≤ 160mm, 60 <t ≤ 100mm)
≥14% (160 <d ≤ 250mm, 100 <t ≤ 160mm)

42CrMo4+QT adag ee HRC: ≥53 (ka dib ololka ama qallafsanaanta induction)
42CrMo4 adkaanta gudaha HBW: ≤255 (la daaweeyay si loo hagaajiyo dhogorta); ≤241 (jilicsan)

Cbirta arbon, birta daawaha hoose, birta daawaynta sare iyo qalabka birta ah ayaa loo isticmaalaa dhowr codsiyo warshadeed. Darajooyinkooda tirada badan, birta iyo alwaaxdooda waxaa lagu daawayn karaa kulayl si loo hagaajiyo wax-soosaarkeeda iyo xooggeeda, lana hagaajiyo adkaanta ama ductility baahida codsiga injineerka ama qalabka farsamada ee la doonayo.

Isticmaalkahabka shubista maalgashiga, Aasaaska tuurista RMC waxay awood u leedahay inay la kulanto qeexitaannada walxaha sida waafaqsan ASTM, SAE, AISI, ACI, DIN, EN, ISO, iyo heerarka GB. Waxaan haynaa in ka badan 100 kala duwan oo bir ah iyo kuwa aan bir ahayn kuwaas oo aan ku tuurno qaybo iyada oo la adeegsanayo shuruudaha naqshadaynta adag. Xirmooyinka maalgelinta cabbir ahaan iyo joomatari ahaanba kakan ayaa loo soo saaray qaab saafi ah, iyadoo la yareynayo baahida mashiinnada labaad.

Chromium-molybdenum birta shubka ah ayaa si weyn loogu isticmaalaa beeraha warshadaha leh sifooyin farsamo oo aad u sarreeya. Ku darida molybdenum-ka ee birta chromium waxay kordhin kartaa xoogga shubka birta iyada oo aan saameyn weyn ku yeelan saameynta adag ee birta shubka ah. Intaa waxaa dheer, chromium-molybdenum cast steel waxay leedahay wax qabad heerkul sare oo aad u wanaagsan iyo iska caabin gurguurta. Ka dib marka la demiyo oo la qaboojiyo ama caadiyeeyo daaweynta kulaylka, birta chromium-molybdenum ee kabka ah waxay heli kartaa sifooyin farsamo oo aad u fiican.

Molybdenum waxay wanaajin kartaa adkaanta birta shubka waxayna yaraynaysaa jajabnaanta xanaaqa ee birta shubka ah. Birta shubka ah ee Chromium-molybdenum waxaa loo isticmaalaa shubida qaybo waaweyn iyo birta shubka oo u baahan adkayn qoto dheer.