Chitoliro chachitsulo cha kaboni cha Ndondomeko 80 ndi mtundu wa chitoliro chomwe chimadziwika ndi khoma lake lokhuthala poyerekeza ndi ma schedule ena, monga Ndondomeko 40. "Ndondomeko" ya chitoliro imatanthauza makulidwe a khoma lake, zomwe zimakhudza kupanikizika kwake ndi mphamvu ya kapangidwe kake.
Makhalidwe Ofunika a Chitoliro cha Chitsulo cha Carbon cha Ndandanda 80
1. Kukhuthala kwa Khoma: Kukhuthala kuposa Ndondomeko 40, zomwe zimapangitsa kuti likhale lolimba komanso lolimba.
2. Kuchuluka kwa Kupanikizika: Kuchuluka kwa kupanikizika chifukwa cha makulidwe a khoma, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito ndi kupanikizika kwakukulu.
3. Zipangizo: Zopangidwa ndi chitsulo cha kaboni, chomwe chimapereka mphamvu zabwino komanso kulimba, komanso kukana kuwonongeka.
4. Mapulogalamu:
Mapaipi a Mafakitale: Amagwiritsidwa ntchito m'mafakitale monga mafuta ndi gasi, kukonza mankhwala, komanso kupanga magetsi.
Mapaipi: Oyenera kugwiritsa ntchito mitsinje yamadzi yothamanga kwambiri.
Kapangidwe: Amagwiritsidwa ntchito popanga nyumba pamene pakufunika mphamvu zambiri.
Mafotokozedwe a Chitoliro cha Chitsulo cha Kaboni cha Ndandanda 80
| Kukula kwa dzina | DN | Kunja kwa m'mimba mwake | Kunja kwa m'mimba mwake | makulidwe a ndandanda 80 | |
| Kukhuthala kwa khoma | Kukhuthala kwa khoma | ||||
| [inchi] | [inchi] | [mm] | [inchi] | [mm] | |
| 1/2 | 15 | 0.84 | 21.3 | 0.147 | 3.73 |
| 3/4 | 20 | 1.05 | 26.7 | 0.154 | 3.91 |
| 1 | 25 | 1.315 | 33.4 | 0.179 | 4.55 |
| 1 1/4 | 32 | 1.66 | 42.2 | 0.191 | 4.85 |
| 1 1/2 | 40 | 1.9 | 48.3 | 0.200 | 5.08 |
| 2 | 50 | 2.375 | 60.3 | 0.218 | 5.54 |
| 2 1/2 | 65 | 2.875 | 73 | 0.276 | 7.01 |
| 3 | 80 | 3.5 | 88.9 | 0.300 | 7.62 |
| 3 1/2 | 90 | 4 | 101.6 | 0.318 | 8.08 |
| 4 | 100 | 4.5 | 114.3 | 0.337 | 8.56 |
| 5 | 125 | 5.563 | 141.3 | 0.375 | 9.52 |
| 6 | 150 | 6.625 | 168.3 | 0.432 | 10.97 |
| 8 | 200 | 8.625 | 219.1 | 0.500 | 12.70 |
| 10 | 250 | 10.75 | 273 | 0.594 | 15.09 |
Kukula: Kumapezeka m'mitundu yosiyanasiyana ya mapaipi (NPS), nthawi zambiri kuyambira 1/8 inchi mpaka 24 inchi.
Miyezo: Imagwirizana ndi miyezo yosiyanasiyana monga ASTM A53, A106, ndi API 5L, yomwe imafotokoza zofunikira pa zipangizo, miyeso, ndi magwiridwe antchito.
Kuphatikizika kwa Mankhwala a Chitoliro cha Chitsulo cha Kaboni cha Ndandanda 80
Ndondomeko 80 idzakhala ndi makulidwe enaake okonzedweratu, mosasamala kanthu za mtundu kapena kapangidwe ka chitsulo chomwe chagwiritsidwa ntchito.
| Giredi A | Giredi B | |
| C, % yokwanira | 0.25 | 0.3 |
| Mn, % yokwanira | 0.95 | 1.2 |
| P, % yokwanira | 0.05 | 0.05 |
| S, % yokwanira | 0.045 | 0.045 |
| Mphamvu yokoka, min [MPa] | 330 | 415 |
| Mphamvu yotulutsa, min [MPa] | 205 | 240 |
Ndandanda 80 Chitoliro cha Chitsulo cha Kaboni
Ubwino:
Mphamvu Yaikulu: Makoma okhuthala amapereka umphumphu wabwino kwambiri.
Kulimba: Kulimba kwa chitsulo cha kaboni komanso kukana kusweka kwa mapaipi amenewa kumapangitsa kuti mapaipiwa akhale okhalitsa.
Kusinthasintha: Koyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana.
Zoyipa:
Kulemera: Makoma okhuthala amapangitsa mapaipi kukhala olemera komanso ovuta kuwagwira ndi kuwayika.
Mtengo: Kawirikawiri zimakhala zodula kuposa mapaipi okhala ndi makoma opyapyala chifukwa cha kuchuluka kwa zinthu zomwe zimagwiritsidwa ntchito.
Nthawi yotumizira: Meyi-24-2024