ʻO ka ʻōwili hope he ʻōwili e kākoʻo ana i ka hanaʻōwilia ʻo ia ka ʻōwili nui a kaumaha loa i hoʻohana ʻia i nā wili wili. ʻO kaʻōwilihiki ke kākoʻo i waenaʻōwilino ka pale ʻana i ka hoʻololi ʻana o ka ʻōwili hana a hoʻopilikia i ka hua a me ka maikaʻi o ka pā a me ka wili wili. ʻO nā hiʻohiʻona maikaʻi o ka ʻōwili kākoʻo ʻo ka paʻakikī o ka ʻili kiʻekiʻe, ka like ʻole o ka paʻakikī a me ka papa paʻakikī o ke kino ʻōwili, ikaika maikaʻi a paʻakikī o ka ʻāʻī ʻōwili a me ke kino ʻōwili. ʻO ka ʻōwili kākoʻo he kiʻekiʻe ka pale ʻana i ka lole a me ka pale ʻana i ka peeling, ikaika anti-accidents. ʻO nā ʻōwili kila paʻa o 1000mm a i ʻole ka liʻiliʻi i hana ʻia me 86CrMoV7 a me 9Cr2Mo. He 0.80% a hiki i ka 0.95% kona kino kalapona a he 2% ka Cr. Hiki ke hoohana ia no kekahi mau wili liilii. Cr4 a me Cr5 back up rolls loaʻa ka carbon content o 0.4% a 0.6% a me kahi Cr content o 4% a 5%, kūpono no nā ʻōwili kila kiʻekiʻe a me ka semi-kiʻekiʻe.

No kekahi mau hale wili liʻiliʻi, ua hana ʻia nā ʻōwili paʻa kila o 1000mm a i ʻole ka liʻiliʻi o 86CrMoV7 a me 9Cr2Mo, ʻo kona ʻano kalapona he 0.80% a 0.95% a ʻo Cr maʻiʻo he 2%.
ʻO ke kila no ka Cr4 a me ka Cr5 backup rolls he carbon content o 0.4% a 0.6% a me kahi Cr content o 4% a 5%. ʻO ka paʻakikī, ka pale ʻana i ka ʻili, ka pale ʻana i ka ʻili, ka luhi a me nā mea kūʻē i ka pōʻino o nā ʻōwili kākoʻo e hoʻopau maoli i ke ʻano o ka ʻili ʻana o ka ʻili kino o ka ʻōwili a me ka ulia ʻoki ʻoki ʻana. ʻO Cr4, Cr5 nā ʻōwili kākoʻo kila he kūpono ia no nā ʻōwili hana kila kiʻekiʻe a me ka semi-kiʻekiʻe.

Nā hiʻohiʻona o ka ʻōwili kila kiʻekiʻe (HSS roll)

1. Loaʻa i nā mea wili kila kiʻekiʻe nā mea hoʻohui kiʻekiʻe e like me vanadium, tungsten, chromium, molybdenum, a me niobium. ʻO nā ʻano carbide i loko o ka ʻōwili ʻōwili ka nui o MC a me M2C. Ke hoʻohālikelike nei me nā wili hao ductile me nā wili nickel-chromium kiʻekiʻe, kiʻekiʻe ka nui o ka hele ʻana o ke kila i kēlā me kēia manawa, e mālama ana i ka manawa o ka loli ʻana, hoʻomaikaʻi i ka hana pono o ka wili a hoʻemi i nā kumukūʻai hana.

2. Loaʻa i nā ʻōwili kila kiʻekiʻe ka paʻa wela. I ka wela o ka ʻōwili, ʻoi aku ka paʻakikī o ka ʻōwili a me ke kūpaʻa maikaʻi.
Loaʻa ka paʻakikī maikaʻi o nā ʻōwili kila kiʻekiʻe, a ʻo ka paʻakikī mai ka ʻili o ke kino o ka ʻōwili i loko o ka papa hana ʻaʻole i emi iki, no laila e hōʻoia ai i nā ʻōwili e like me ke kūpaʻa maikaʻi mai waho a i loko.

3. I ka wā o ka hoʻohana ʻana i nā ʻōwili kila kiʻekiʻe, ma lalo o nā kūlana hoʻoluʻu maikaʻi, ua hana ʻia kahi kiʻi ʻoniʻoni ʻoniʻoni a lahilahi ma ka ʻili o ke kino ʻōwili. Hiki ke noho ʻia kēia ʻano kiʻi ʻoniʻoni ʻoniʻoni ʻoniʻoni, ʻokiʻoki a me ka oxide no ka manawa lōʻihi me ka hāʻule ʻole ʻana, e hoʻomaikaʻi maikaʻi ʻia nā ʻōwili kila kiʻekiʻe.

4. Loaʻa i nā ʻōwili kila kiʻekiʻe ka nui o ka hoʻonui ʻana i nā mea a me ka conductivity thermal maikaʻi. Ke emi nei nā'ōwili HSS ma muli o ka hoʻonuiʻiaʻana o nā mea kila kiʻekiʻe. I ka wā o ka ʻōwili ʻana, he liʻiliʻi ka hoʻololi ʻana o ka ʻōwili ʻōwili, a mālama ʻia ke kūlike o ka nui o ka lua no ka manawa lōʻihi, ʻoi aku hoʻi i ka wā e ʻōwili ai i ka pā a i ʻole rebar, ʻoi aku ka maikaʻi o ka mālama ʻana i ka hoʻomanawanui maikaʻi ʻole o ka mea ʻōwili.
5. Ke kumu o ka centrifugally hoolei kila kiʻekiʻe-wikiwiki olokaa i hanaia me ka alloy ductile hao, pela, ka'ōwili'ā'ī ikaika ikaika.

Palapala noi
wili wili pahu, wili wili moku, wili uwila kiʻekiʻe e hoʻopau i ka wili, wili ʻoki wela wela, ʻāpana a me nā ʻāpana wili kila.