Lub nruam reciprocating motion ntawmnqus rodsnyob rau hauv cov roj abrasive zoo ib puag ncig qhov xav tau ntawm cov khoom siv kho tshuab xws li lub zog, qaug zog lub neej, hnav tsis kam, thiab tiv thaiv corrosion. Kev xaiv cov ntaub ntawv zoo tshaj plaws yog qhov tseem ceeb rau kev ua kom muaj txiaj ntsig zoo tshaj plaws thiab txo qis qis. Vigor muab kev sib piv ntawm AISI 4130, 4140, 4142, 4330, thiab 4138 nruab nrab carbon alloy steel qib kom qhia cov kev xaiv tsim nyog rau cov kev pabcuam sib txawv.
Txheej txheem cej luam ntawm AISI 4130
AISI 4130 steel muaj 0 28-0.33% C, 0.4-0.6% Mn, 0.{{8 }}.1% Cr thiab 0.15-0.25% Mo yog dav siv rau kev tsim cov pas nrig. Cov chromium thiab molybdenum alloying cov ntsiab lus tseem ceeb txhim kho hardenability, lub zog, toughness, thiab tempering tsis kam piv rau cov pa roj carbon steels.
Thaum kho cov cua sov kom zoo, AISI 4130 tuaj yeem ua tiav lub zog tensile tshaj 150 ksi, yield zog tshaj 120 ksi, elongation mus txog 16%, thiab Charpy V-notch cuam tshuam toughness ntawm 20 ft-lb ntawm chav tsev kub. Lub zog qaug zog kuj zoo dua rau cov pa roj carbon steel. Cov khoom siv dag zog zoo no ua rau AISI 4130 rods tiv taus cov kev ntxhov siab hnyav.
AISI 4130 muab cov nqi sib xyaw ua ke ntawm lub zog, qaug zog lub neej, thiab tawv.
AISI 4140 Alloy Steel rau Sucker Rods
AISI 4140 tau siv dav rau cov pas nrig vim nws lub zog zoo heev, tawv, lub neej qaug zog, thiab hnav tsis kam piv rau qis alloys. Nrog ib tug muaj pes tsawg leeg ntawm 0.38-0.43% C, 0.75-1% Cr, 0.15-0.25% Mo, thiab 0.
Cov pa roj carbon ntau dua ua rau muaj zog dua thiab ua kom tsis zoo dua li AISI 4130, txo qis hnav ntxov ntxov. 4140 kuj qhia tau zoo dua toughness thiab ductility. Cov ntsiab lus siab chromium txhim khu kev tiv thaiv corrosion. Ntxiv mus, 4140 nthuav tawm kev qaug zog zoo tshaj plaws rau AISI 1045 carbon steel, tshwj xeeb tshaj yog nyob rau hauv txoj kab uas hla loj.
Lub zog zoo dua thiab qaug zog ua rau pom tseeb tus nqi siab dua ntawm AISI 4140 rau kev thov kev thov.
Cov txiaj ntsig tseem ceeb ntawm AISI 4142 Hloov Kho Alloy Steel
AISI 4142 yog qhov hloov kho dua tshiab ntawm 4140, muaj 0.38-0.43% C, 1.8-2.1% Cr, 0. {9}}.25% Mo, 0.8-1.1% Mn thiab 1.65-2% Ni. Cov ntsiab lus chromium thiab npib tsib xee ntxiv muab qhov zoo dua corrosion kuj piv rau 4140, thaum tuav lub zog zoo dua thiab tawv.
Cov npib tsib xee elevated kuj ua rau muaj kev cuam tshuam toughness ntawm qhov kub thiab txias. Thaum kho cua sov kom zoo, AISI 4142 tuaj yeem muab cov khoom muaj zog tshaj 180 ksi, tensile zog tshaj 230 ksi, thiab Charpy cuam tshuam qhov tseem ceeb ntawm 16 ft-lb ntawm -40oF. Qhov no ua rau muaj kev ntseeg tau zoo hauv qhov hnyav subterranean ib puag ncig uas ua rau hydrogen sulfide tawg.
Cov yam ntxwv tseem ceeb ntawm Wear-Resistant AISI 4330 Hloov Hlau
AISI 4330 hloov kho steel muaj 0.28-0.34% C, 1.5-2.5% Ni, {{10}}. {8}}.2% Cr, 0.2-0.6% Mo, 0.7-1% Mn and 1-1.4% Si (Rajnay, 2005). Cov nickel siab dua imparts zoo heev toughness, thaum lub siab silicon cov ntsiab lus muab zoo heev puas thiab galling kuj. AISI 4330 muaj kev kub ntxhov siab heev thiab tuaj yeem ua kom sov rau 1200oF thaum lub sijhawm ua haujlwm yam tsis tau poob hardness.
Cov khoom no ua rau AISI 4330 zoo tagnrho raunqus rodsnyob rau hauv cov xuab zeb los yog kub-kub ib puag ncig nws ua rau abrasive hnav thiab yaig. Yield zog ntawm 160-200 ksi thiab tensile zog tshaj 230 ksi yog attainable. AISI 4330 feem ntau yog siv thaum hnav tsis kam yog qhov tseem ceeb.
AISI 4138 Resulfurized Steel Qib
AISI 4138 muaj cov sulfur ntxiv ntawm 0.15-0.35% nrog rau 0.36-0.44% C, 1.5-1.8% Cr, {{10}}}15-0.25% Mo thiab 0.7-0.9% Mn (Leslie, 1981). Cov sulfur siab dua txhim kho machinability tab sis txo qhov cuam tshuam toughness. Qhov nruab nrab carbon thiab chromium cov ntsiab lus imparts zoo zog thiab temper kuj.
Thaum ua tiav lawm, AISI 4138 tuaj yeem muab 130-180 ksi yield zog thiab 160-210 ksi tensile zog ua ke nrog txaus elongation thiab txo qhov chaw. Cov sulfur kuj txhim kho zawv zawg hnav tsis kam.
Ua tib zoo ntsuas qhov kev xav tau ntawm cov cuab yeej cuab tam nrog cov nqi txwv yog qhov tseem ceeb rau kev xaiv qhov zoo tshaj plaws sucker rod alloy.
Peb tuaj yeem muab taunqus rodsua los ntawm cov ntaub ntawv hais saum toj no. Peb muab cov ntaub ntawv khoom vaj khoom tsev rau cov khoom siv uas nquag siv. Rau kev thov tshwj xeeb, thov hu rau peb kom paub tseeb. thov hu rau peb ntawminfo@vigorpetroleum.com.
