Kodi muyezo wa ASTM ndi chiyani ndipo A36 imapangidwa ndi chiyani?

ASTM, yomwe imadziwika kuti American Society for Testing and Materials, ndi bungwe lodziwika bwino padziko lonse lapansi lomwe limapereka miyezo yothandiza pakupanga ndi kufalitsa miyezo ya mafakitale osiyanasiyana. Miyezo iyi imapereka njira zoyesera zofanana, zofunikira, ndi malangizo amakampani aku US. Miyezo iyi idapangidwa kuti iwonetsetse kuti zinthu ndi zipangizo ndi zabwino, magwiridwe antchito, komanso chitetezo cha zinthu ndi zinthuzo zikuyenda bwino komanso kuti malonda apadziko lonse lapansi aziyenda bwino.

Kusiyanasiyana ndi kufalikira kwa miyezo ya ASTM kuli kwakukulu ndipo kumakhudza magawo osiyanasiyana kuphatikizapo, koma osati kokha, sayansi ya zipangizo, uinjiniya womanga, chemistry, uinjiniya wamagetsi, ndi uinjiniya wamakina. Miyezo ya ASTM imakhudza chilichonse kuyambira kuyesa ndi kuwunika kwa zipangizo zopangira mpaka zofunikira ndi chitsogozo panthawi yopanga, kupanga, ndi kugwiritsa ntchito zinthu.

ASTM A36/A36M:

Mafotokozedwe a muyezo a chitsulo chomwe chimakwaniritsa zofunikira pa chitsulo cha kaboni chomangidwa pa ntchito yomanga, kupanga, ndi ntchito zina zauinjiniya.

Mbale Yachitsulo ya A36Miyezo Yokakamiza
Muyezo wogwiritsira ntchito ASTM A36/A36M-03a, (wofanana ndi khodi ya ASME)

Mbale ya A36gwiritsani ntchito
Muyezo uwu umagwira ntchito pa milatho ndi nyumba zokhala ndi zomangamanga zokhotakhota, zomangiriridwa ndi zolungidwa, komanso zigawo zachitsulo cha kaboni, mbale ndi mipiringidzo ya kaboni yogwiritsidwa ntchito popanga chitsulo. Mbale yachitsulo ya A36 imapanga pafupifupi 240MP, ndipo idzawonjezeka ndi makulidwe a zinthuzo kuti phindu lichepe, chifukwa cha kuchuluka kwa kaboni, magwiridwe antchito onse abwino, mphamvu, pulasitiki ndi kuwotcherera ndi zina zomwe zimapangitsa kuti pakhale machesi abwino, zomwe zimagwiritsidwa ntchito kwambiri.

A36 chitsulo mbale mankhwala kapangidwe:
C: ≤ 0.25, Si ≤ 0.40, Mn: ≤ 0.80-1.20, P ≤ 0.04, S: ≤ 0.05, Cu ≥ 0.20 (pamene zinthu zachitsulo chokhala ndi mkuwa zili m'zitsulo).

Kapangidwe ka makina:
Mphamvu yotulutsa: ≥250.
Mphamvu yokoka: 400-550.
Kutalika: ≥20.
Muyezo wa dziko lonse ndi zinthu za A36 ndizofanana ndi Q235.