Grey hlau, los yog grey cam khwb cia hlau, yog ib hom cam khwb cia hlau uas muaj graphite microstructure. Nws yog lub npe hu ua grey xim ntawm lub pob txha tawg nws cov ntaub ntawv. Grey cam khwb cia hlau yog siv rau kev caigrey hlau castingsqhov twg qhov nruj ntawm cov khoom tseem ceeb tshaj li nws lub zog tensile, xws li sab hauv combustion engine cylinder blocks, twj tso kua mis vaj tse, valve lub cev, hluav taws xob thawv, txee qhov hnyav thiab zoo nkauj castings. Grey cam khwb cia hlau lub siab thermal conductivity thiab lub taub hau muaj peev xwm feem ntau yog siv los ua cam khwb cia hlau cookware thiab disc nres rotors. Grey cam khwb cia hlau (tseem hu ua grey cam khwb cia hlau) yog ib pawg ntawm cov cam khwb cia hlau nrog rau ntau hom qib raws li qhov sib txawv ntawm cov qauv sib txawv. Grey cam khwb cia hlau yog ib hom hlau-carbon alloy thiab nws tau txais nws lub npe "grey" los ntawm qhov tseeb tias lawv cov ntu zoo li grey. Cov qauv metallographic ntawm grey cam khwb cia hlau yog tsim los ntawm flake graphite, hlau matrix thiab grain ciam teb eutectic. Thaum lub sij hawm grey hlau, cov Carbon yog nyob rau hauv flake graphite. Raws li ib qho ntawm cov khoom siv dav siv hlau, cam khwb cia grey hlau muaj ntau qhov zoo ntawm cov nqi, castability thiab machinablity.
Mechanical Properties ntawm Cam khwb cia Grey Hlau | ||||||
| Tensile Lub zog ntawm cais cov qauv nrum ntawm Grey Cast Irons | ||||||
| Khoom Siv Lub Npe | HT100 | HT150 | HT 200 | HT 250 | HT300 | HT350 |
| Cov ntaub ntawv sib npaug | GG-10, EN-GJL-100 | GG-15, EN-GJL-150 | GG-20, EN-GJL-200 | GG-25, EN-GJL-250 | GG-30, EN-GJL-300 | GG-35, EN-GJL-350 |
| Tensile zog (MPa) | ≥100 | ≥150 | ≥200 | ≥250 | ≥300 | ≥350 |
Tensile Strength ntawm Cast-on Samples Grey Cast Irons | ||||||
| Khoom Siv Lub Npe | Phab ntsa Thickness ntawm Casting (mm) | Tensile zog (MPa) ≥ | ||||
| Sample Bar Dia. (mm) | Qauv Block (mm) | Castings (Reference) | ||||
| φ30 | φ50 | R15 | R25 | |||
| HT150, GG-15, EN-GJL-150 | 20-40 | 130 | / | 120 | / | 120 |
| 40-80 : kuv | 115 | 115 | 110 | / | 105 | |
| 80-150 | / | 105 | / | 100 | 90 | |
| 150-300 Nws | / | 100 | / | 90 | 80 | |
| HT200, GG-20, EN-GJL-200 | 20-40 | 180 | / | 170 | / | 165 |
| 40-80 : kuv | 160 | 155 | 150 | / | 145 | |
| 80-150 | / | 145 | / | 140 | 130 | |
| 150-300 Nws | / | 135 | / | 130 | 120 | |
| HT250, GG-25, EN-GJL-250 | 20-40 | 220 | / | 210 | / | 205 |
| 40-80 : kuv | 200 | 190 | 190 | / | 180 | |
| 80-150 | / | 180 | / | 170 | 165 | |
| 150-300 Nws | / | 165 | / | 160 | 150 | |
| HT300, GG-30, EN-GJL-300 | 20-40 | 260 | / | 250 | / | 245 |
| 40-80 : kuv | 235 | 230 | 225 | / | 215 | |
| 80-150 | / | 210 | / | 200 | 195 | |
| 150-300 Nws | / | 195 | / | 185 | 180 | |
| HT350, GG-35, EN-GJL-350 | 20-40 | 300 | / | 290 | / | 285 |
| 40-80 : kuv | 270 | 265 | 260 | / | 255 | |
| 80-150 | / | 240 | / | 230 | 225 | |
| 150-300 Nws | / | 215 | / | 210 | 205 | |
| Lus Cim: Thaum lub thickness yog tshaj 300 hli, cov khoom siv kho qhov tseeb raug lees paub los ntawm cov neeg muag khoom thiab cov neeg yuav khoom. | ||||||
Tensile Strength ntawm Grey Hlau Casting nyob rau hauv txawv phab ntsa Thickness | ||||||
| Cam khwb cia Thickness (mm) | Khoom Siv Lub Npe | |||||
| HT100, GG-1, EN-GJL-100 | HT150, GG-15, EN-GJL-150 | HT200, GG-20, EN-GJL-200 | HT250, GG-25, EN-GJL-250 | HT300, GG-30, EN-GJL-300 | HT350, GG-35, EN-GJL-350 | |
| Tensile zog (MPa) ≥ | ||||||
| 2.5-4.0 Nws | 130 | 175 | 220 | / | / | / |
| 4.0-10 | 270 | |||||
| 10-20 | 100 | 145 | 195 | 240 | 290 | 340 |
| 20-30 | 90 | 130 | 170 | 220 | 250 | 290 |
| 30-50 | 80 | 120 | 160 | 200 | 230 | 260 |
Grey Cam khwb cia hlau Casting Parts
Grey Hlau Casting Truck Spare Parts
Post lub sij hawm: May-22-2021