He kuleana koʻikoʻi nā Rollers i ka ʻoihana hana metala, ʻoi aku hoʻi i ka wā o ka hoʻokumu ʻana i ka metala a me nā kaʻina hana ʻemi.Hoʻohana ʻia nā ʻano wili like ʻole ma muli o ka noi kikoʻī a me nā hopena i makemake ʻia.Ma kēia moʻomanaʻo, e ʻimi mākou i nā hiʻohiʻona a me nā pōmaikaʻi o nā koho kaulana ʻehā: nā ʻōwili tungsten carbide, nā ʻōwili semi-steel, nā ʻōwili kila, a me nā ʻōwili hao kiʻekiʻe-chromium.

1. ʻO ka huila tungsten carbide:
Ua ʻike ʻia nā huila tungsten carbide no ko lākou ikaika a me ka lōʻihi.Hoʻohana pinepine ʻia lākou i nā noi roughing ma muli o ko lākou pale ʻana maikaʻi loa a me ke kūpaʻa wela kiʻekiʻe.He kūpono loa nā ʻōwili tungsten carbide no ka hoʻoponopono ʻana i ke kila kila, ke koʻokoʻo uea kiʻekiʻe a me nā mea e koi ai.Hāʻawi kēia mau ʻōwili i ke ola lawelawe ʻoi aku ka liʻiliʻi o ka manawa haʻahaʻa a pono e noʻonoʻo ʻia no nā hana wili hana kaumaha.

2. ʻO nā ʻōwili Semi-steel:
Hoʻohana nui ʻia nā ʻōwili Semi-steel i nā noi wili wili like ʻole.ʻO kā lākou mea hana metala he pūpū i hana ʻia me ke kila paʻakikī a me ke kumu i hana ʻia me ka hao ductile.Hāʻawi kēia hui ʻana i ke kūpaʻa ʻaʻahu maikaʻi a ʻoi aku ka maikaʻi o ka hoʻohālikelike ʻana i nā wili kila paʻa.He kūpono nā'ōwili Semi-steel no nā kaʻina hana ʻōwili like ʻole a hiki ke hoʻohana ʻia no nā ʻano mea like ʻole.

3. ʻO nā ʻōwili kila:
Hoʻohana nui ʻia nā wili kila ma muli o ko lākou versatility a me ka hiki ke hoʻololi.Hele mai lākou i nā māka a me nā haku mele, hāʻawi kēlā me kēia i nā waiwai kūʻokoʻa e like me ke kūpaʻa abrasion, ke kūpaʻa haʻalulu wela a me ke kūpaʻa hopena.He koho maikaʻi loa nā wili kila ke koi ʻia ka maʻalahi e hoʻokipa i nā mea like ʻole a me nā kūlana ʻōwili.Mai ka'ōwili wela a hiki i ke kaʻina hana anuanu, hiki i nā'ōwili kila ke hālāwai i nāʻano likeʻole.

4.Rol hao chromium kiʻekiʻel:
ʻIke ʻia nā ʻōwili hao chromium kiʻekiʻe no ko lākou pale ʻana a me ka paʻakikī.He kūpono lākou no ka wili ʻana i nā mea hana e like me ke kila, aluminika a me ke keleawe.Hiki i kēia mau ʻōwili ke kūpaʻa i nā ikaika koʻikoʻi a me nā wela wela i loaʻa i ka wā o ka ʻōwili ʻana.ʻIke ʻia nā wili hao chromium kiʻekiʻe no ko lākou ola lawelawe lōʻihi a me ka pono.

i ka hopena:
ʻO ke koho ʻana i ka wili wili e pili ana i nā kumu like ʻole, e like me ka mea i ʻōwili ʻia, nā hopena i makemake ʻia, a me kāu mau koi ponoʻī.ʻO nā'ōwili tungsten carbide he mea kūpono ia no ka hoʻopili ʻana i nā noi, aʻo nā ʻōwili semi-steel e hāʻawi i kahi hopena kūpono no nā ʻano hana ʻōwili.Hāʻawi nā ʻōwili kila i ka maʻalahi no nā mea like ʻole a me nā kūlana ʻōwili, a ʻike ʻia nā ʻōwili hao kiʻekiʻe-chromium no ko lākou kūpaʻa maikaʻi loa.Ma ka hoʻomaopopo ʻana i nā hiʻohiʻona a me nā pōmaikaʻi o kēlā me kēia ʻano, hiki iā ʻoe ke hoʻoholo i ka ʻike e hoʻomaikaʻi i ka hana o kāu wili.