1. Ke kila kinai ʻia a hoʻonāwaliwali
ʻO ka hoʻāʻo paʻakikī o ke kila kinai ʻia a hoʻohana nui ʻia ʻo Rockwell hardness tester HRC scale. Inā lahilahi ka mea a ʻaʻole kūpono ka unahi HRC, hiki ke hoʻohana ʻia ka unahi HRA. Inā ʻoi aku ka lahilahi o ka mea, hiki ke hoʻohana ʻia nā unahi paʻakikī o Rockwell HR15N, HR30N, a i ʻole HR45N.
2. Ke kila paʻa i ka ʻili
I ka hana ʻoihana, i kekahi manawa pono ke kumu o ka mea hana e loaʻa ka paʻakikī maikaʻi, ʻoiai ʻo ka ʻili e koi ʻia e loaʻa ka paʻakikī kiʻekiʻe a me ke kūpaʻa. I kēia hihia, hoʻohana ʻia ka quenching kiʻekiʻe, carburization kemika, nitriding, carbonitriding a me nā kaʻina hana ʻē aʻe e hoʻokō ai i ka mālama paʻakikī o ka ʻili ma ka mea hana. ʻO ka mānoanoa o ka papa paʻakikī o ka ʻili ma waena o kekahi mau millimeters a me kekahi mau millimeters. No nā mea me nā papa paʻakikī o ka ʻili, hiki ke hoʻohana ʻia nā unahi HRC e hoʻāʻo i ko lākou paʻakikī. No nā kila hoʻopaʻakikī paʻakikī o ka ʻili, hiki ke hoʻohana ʻia nā unahi HRD a i ʻole HRA. No nā papa ʻili paʻakikī, pono e hoʻohana ʻia nā unahi paʻakikī o Rockwell HR15N, HR30N, a me HR45N. No nā papa ʻili ʻoi aku ka paʻakikī o ka ʻili, pono e hoʻohana ʻia kahi mea hōʻike paʻakikī micro Vickers a i ʻole ka mea hōʻike paʻakikī kani ultrasonic.
3. Ke kila Annealed, ke kila maʻamau, ke kila māmā
Nui nā mea kila i hana ʻia ma kahi kūlana annealed a maʻamau, a ua helu pū ʻia kekahi mau papa kila i ʻōwili ʻia e like me nā degere like ʻole o ka annealing. Hoʻohana maʻamau ka hoʻāʻo ʻana i ka paʻakikī o nā kila annealed i nā unahi HRB, a i kekahi manawa hoʻohana ʻia nā unahi HRF no nā papa palupalu a lahilahi. No nā papa lahilahi, pono e hoʻohana ʻia nā mea hōʻike paʻakikī ʻo Rockwell HR15T, HR30T, a me HR45T.
4. Ke kila kila
Hoʻolako pinepine ʻia nā mea kila kila ma nā mokuʻāina e like me ka annealing, quenching, tempering, a me ka hopena paʻa. Hōʻike nā kūlana aupuni i nā koina paʻakikī o luna a me lalo, a ʻo ka hoʻāʻo paʻakikī e hoʻohana maʻamau i ka Rockwell hardness tester HRC a i ʻole HRB unahi. E hoʻohana ʻia ka unahi HRB no ke kila kila austenitic a me ka ferritic, e hoʻohana ʻia ka pālākiō HRC o Rockwell hardness tester no ka martensite and precipitation hardening stainless steel, a ʻo ka HRN a i ʻole HRT scale o Rockwell hardness tester e hoʻohana ʻia no nā paipu ʻeleʻele lahilahi a me nā mea pepa me ka mānoanoa ma lalo o 1~2mm.
5. Ke kila forged
Hoʻohana mau ʻia ka hoʻāʻo paʻakikī ʻo Brinell no ke kila paʻa, no ka mea, ʻaʻole lawa ka nui o ka microstructure o ke kila forged, a ʻo ka Brinell hardness test indentation ka nui. No laila, hiki i ka Brinell hardness test ke hōʻike i nā hopena piha o ka microstructure a me nā waiwai o nā ʻāpana āpau o ka mea.
6. Ka hao hao
Hōʻike pinepine ʻia nā mea hao hao e ke ʻano like ʻole a me nā kīʻaha koʻikoʻi, no laila ua ʻae ʻia ka hoʻāʻo paʻakikī ʻo Brinell. Hiki ke hoʻohana ʻia ka mea hōʻike paʻakikī ʻo Rockwell no ka hoʻāʻo ʻana i ka paʻakikī o kekahi mau mea hana hao. Ma kahi ʻaʻole lawa ka ʻāpana ma ka ʻāpana liʻiliʻi o ka hoʻoheheʻe palaoa maikaʻi no ka hoʻāʻo ʻana i ka paʻakikī o Brinell, hiki ke hoʻohana pinepine ʻia ka HRB a i ʻole HRC unahi e hoʻāʻo ai i ka paʻakikī, akā ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka unahi HRE a i ʻole HRK, no ka mea, hoʻohana nā unahi HRE a me HRK i nā pōpō kila 3.175mm anawaena, hiki ke loaʻa i ka helu helu ʻoi aku ka maikaʻi ma mua o 1.588mm anawaena kila.
Hoʻohana pinepine ʻia nā mea hao malleable paʻakikī i ka HRC paʻakikī ʻo Rockwell. Inā like ʻole ka mea, hiki ke ana ʻia nā ʻikepili he nui a lawe ʻia ka waiwai maʻamau.
7. ʻO ka carbide Sintered
ʻO ka hoʻāʻo ʻana i ka paʻakikī o nā mea hao paʻa paʻakikī e hoʻohana wale i ka Rockwell hardness tester HRA scale.
8. Pauda
Ka manawa hoʻouna: Jun-02-2023
