1. Q: Dab tsi yog cov khoom siv ntawm 6118 steel yeeb nkab? A: 6118 yog qhov nruab nrab- Carromium aliececech, nrog cov ntsiab lus chromium ntawm 0.7.90%, thiab cov molybdenum cov ntsiab lus ntawm 0.15% -0.25%. Nws yog tus cwj pwm siab, lub zog ua tau zoo, thiab cov neeg lim dej zoo, ua rau nws tsim nyog tshwj xeeb rau cov khoom siv hloov chaw. Piv rau cov pa roj carbon hlau, 6118 muaj cov zog siab dua thiab corrosion tsis kam.
2. Q: Dab tsi yog cov neeg kho tshuab raug ntawm 6118 steel yeeb nkab? A: Tom qab quenching thiab tempering (quenching + tempering), cov khoom siv tsis sib xws los yog sib npaug ntawm 1450, thiab kev cuam tshuam nrog kub thiab muaj zog ntxiv los yog sib npaug ntawm cov 14% Lub hardness ntau feem ntau yog HRC 25-32.
3. Q: Cov ntsiab lus ntawm kev kho cua sov yog dab tsi rau 6118? A: Cov txheej txheem tseem ceeb muaj xws li: roj quenching ntawm 850- 880℃los xyuas kom meej cov Austenitization; Kev ntsuas kub yog xaiv raws li kev ua tau zoo (qis {} kub npau taws lub zog, siab} kub sim ua kom nruj heev); thiab txuas ntxiv tuav lub sijhawm yog xav tau rau loj-} be} hla ntu. Preheating rau 200-300℃yuav tsum tau ua ntej vuam, thiab kev nyuaj siab pab txhawb nqa (600-650 degree) yuav tsum tom qab vuam. Kev saib xyuas tshwj xeeb yuav tsum tau ua kom tsis txhob muaj qhov txias txias hauv 350-550℃ntau yam los tiv thaiv kev npau taws brittleness.
4. Q: Qhov zoo ntawm 6118 piv rau 4140 tus hlau? A: 6118 muaj cov ntsiab lus muaj roj carbon (0.16%- 0.2% vs {% - 0.43%), ua rau muaj kev vam meej weldability thiab txias. Nws tseem tuav tau zoo lub zog siab vim yog nws molybdenum cov ntsiab lus, thaum 6118 yog cov khoom siv ua ke
5. Q: Dab tsi yog cov ntawv thov tseem ceeb ntawm 6118 steel yeeb nkab? A: Siv dav dav hauv tsheb ciav hlau, cov pob zeb hydraulic rau kev siv cov machinery, roj drunting siv roj, thiab cov txheej txheem roj av. Nws yog qhov tshwj xeeb rau cov khoom tseem ceeb rau kev cuam tshuam cov khoom lag luam thiab muaj kev ntxhov siab ntau txawm tias muaj kev kub ntxhov ntau (tsawg dua lossis sib npaug nrog 400 degree). Kev kho deg (xws li nitrived lossis galvanizing pom zoo kom txhim kho corrosion tsis kam.
