He 55+-3 ka paʻakikī o ka ʻili o Rockwell o ke kila kalapona maʻamau i hoʻopaʻa ʻia, a ʻo ka paʻakikī o ke kila i ʻōwili ʻia ma mua o 80. o 100-2000mm; hana ʻia nā mea ʻelua me ka ʻōwili wela a i ʻole ka pā kila. .
ʻO CRS ka pōkole o ka English cool rolled steel, ʻo ia hoʻi, ke kila ʻōwili anuanu. E pili ana ia i ke kaʻina ʻōwili kila. No ka laʻana, q235 mea maʻamau kalapona kila pā hiki ke anu i olokaa, a me 10 # kila pā hiki no hoi ke anu. Hiki i kona paʻakikī ma ke kūlana kūpono e like me ke kila kila i hoʻohana ʻia. .
He aha ka papa o ka pepa ʻōwili anu i ʻoi aku ka paʻakikī ma mua o ka spcc? .
ʻO ka pepa anu i ʻōwili ʻia ʻo ia ka pōkole o ke kila kila maʻamau i ʻōwili ʻia, ʻike ʻia hoʻi ʻo ka pepa ʻōwili anu, i ʻike mau ʻia ʻo ka pepa ʻōwili anu, a i kekahi manawa ua kuhi hewa ʻia ʻo ia he pepa ʻōwili anu. ʻO ka pā anu i hana ʻia me ke kila hoʻolālā kalapona maʻamau i ʻōwili ʻia i ke kila wela, ʻo ia ka mea i ʻōwili hou ʻia i ke kila me ka mānoanoa o lalo o 4mm. .
Hoʻokaʻawale ʻia ka pepa ʻōwili anuanu i: 1/8 paʻakikī, 1/4 paʻakikī, 1/2 paʻakikī a piha paʻa. ʻElua mau ʻāpana nui o ka waiwai paʻakikī: HRB (Rockwell) HV (Vickers) penei: ʻO ka hōʻailona hoʻokaʻawale maikaʻi HRB (Rockwell) HV (Vickers) 1/8 paʻakikī. .
ʻO ka pāʻina pickling kahi pā wela wela i hoʻokō ʻia i kahi kaʻina e like me ka dephosphorization (ka wehe ʻana i ka ʻōpala, koena, a me nā mea ʻē aʻe, i hana ʻia i ka wā wela) a me nā kaʻina hana ʻē aʻe e pickle i ka ʻili e loaʻa ai kahi pā kila me ka hana ʻoi aku ka maikaʻi ma mua o ka wela. -ʻili ʻili. Hiki ke ʻike ʻia mai kāna kaʻina hana ʻana ua wela kona paʻakikī me ka papa like. .
ʻAʻohe mea ʻokoʻa i ka paʻakikī o ka ʻili ma waena o ka ʻōwili anu a me ka galvanized. No ka mea, ua uhi wale ʻia ka ʻili galvanized me kahi papa o ka zinc mai kekahi mau microns a i kahi 20 microns ma luna o ka substrate. ʻO ka substrate ka mea maʻamau i ka ʻōwili anu a me ka ʻōwili wela. ʻO ka paʻakikī e pili ana i ka pae o ka mea, a ʻokoʻa nā māka. .
E lawe i DC01, DC03 i laʻana. ʻO DC01 ka palena kiʻekiʻe o ka ikaika hua 280 DC03 ka palena kiʻekiʻe o ka ikaika hua 240 , dc06 + ze, pili lākou i ka pepa anu i ʻōwili ʻia, ʻo ka helu ke hōʻike nei i ka papa stamping, a ʻoi aku ka nui o ka helu.
Hana ʻia ka pepa anu i ʻōwili ʻia me ka mea maka, i ʻōwili ʻia ma ka lumi wela ma lalo o ka mahana recrystallization, a ʻo kona paʻakikī ma kahi o 150HV. Hana ʻia nā ʻāpana mīkini shearing me ke kila kila, me ka paʻakikī o HRC55 ~ 58 °, hiki ke ʻoki i ka hapa nui o lākou.
