ʻO ke anu a me ke anu paʻakikī

ʻO ke anu a me ke anu paʻakikī

Loaʻa ka Cold Hard coil ma ka pickling a me ka ʻōwili anu i ka ʻōwili wela.He ʻano wili ʻōwili anu.

Cold rolled coil (annealed state): hot rolled coil through pickling, cold rolling, hood annealing, leveling, (finishing), hiki ke loa'a ka Cold rolled coil.

ʻO ka ʻokoʻa ma waena o Cold Rolled a me Cold Hard:

1.From ka helehelena, anu Paakiki paʻa mea liʻiliʻi Micro Black kala maʻamau

2. ʻOi aku ka maikaʻi o ka ʻili, ka hoʻokumu ʻana a me ka nui o ka Cold Rolled ma mua o Cold Hard.

3. Ma ka hana:

Ma muli o ka loaʻa pololei ʻana o ka Cold Hard coil e ke kaʻina hana ʻōwili anu, ma ke kaʻina hana ʻōwili anu e paʻakikī ka hana i ka wā o ka ʻōwili anuanu, piʻi ka ikaika o ka hua a noho mau kekahi koʻikoʻi o loko, a paʻakikī ke ʻano o waho, no laila ua kapa ʻia ʻo Cold Hard coil..

Cold-rolled coil (annealed state): loaʻa ka wili paʻakikī anuanu ma ka hoʻopili ʻana i ka puʻu ma mua o ka ʻōwili ʻana.Ma hope o ka hoʻopili ʻana, ua hoʻopau ʻia ke ʻano paʻakikī o ka hana a me ke koʻikoʻi o loko (hoʻemi nui ʻia), ʻo ia hoʻi, hoʻemi ʻia ka ikaika o ka hua a kokoke i ke anu.Ma mua o ka ʻōwili ʻana.

No laila, ʻoi aku ka ikaika o ka hoʻoulu ʻana: ʻoi aku ka nui o ka coil paʻakikī ma mua o ka coil i ʻōwili ʻia (annealed state), i ʻoi aku ka maikaʻi o ka coil-rolled (annealed state) no ka hoʻopaʻa ʻana.