Nā Pōmaikaʻi o AR Steel?
Hoʻolako ʻo Jindalai Steel i ka papa kila AR ma nā ʻāpana nui a liʻiliʻi i nā mea hoʻolālā a me nā mea hana hale hana e ʻimi nei e hoʻolōʻihi i ke ola lawelawe o nā ʻāpana koʻikoʻi a hoʻemi i ke kaumaha o kēlā me kēia ʻāpana i hoʻokomo ʻia i ka lawelawe. Nui loa nā pono o ka hoʻohana ʻana i ka papa kila pale i nā noi e pili ana i ka hopena a/a i ʻole ka hoʻopili ʻana me ka mea abrasive.
He paʻa loa ka papa kila kūpaʻa i ka abrasion a kūpaʻa i ke komo ʻana, e pale maikaʻi ana i nā ʻōpala a me nā ʻōpala. Hana maikaʻi kēia ʻano kila i nā noi ʻino, a hāʻawi pū kekahi i ke kūpaʻa i ka hopena. ʻO ka papa kila kūpaʻa i ke komo ʻana e kōkua i ka hoʻolōʻihi ʻana i ke ola o kāu mau noi a hoʻemi i kāu mau kumukūʻai i ka wā lōʻihi.
Nā kikoʻī o AR Steel
| Nā kikoʻī | AR400 / 400F | AR450 / 450F | AR450 / 500F |
| Paʻakikī (BHN) | 400 (360 minuke) | 450 (429 minuke) | 500 (450 minuke) |
| Kalapona (Max) | 0.20 | 0.26 | 0.35 |
| Manganese (Min) | 1.60 | 1.35 | 1.60 |
| Phosphorus (Max) | 0.030 | 0.025 | 0.030 |
| Sulfur (Max) | 0.030 | 0.005 | 0.030 |
| Silika | 0.55 | 0.55 | 0.55 |
| Chromium | 0.40 | 0.55 | 0.80 |
| ʻĒ aʻe | Hiki ke hoʻohui ʻia nā mea hoʻohui hou aku no ka hoʻoikaika ʻana i nā waiwai kūpaʻa i ka abrasion. | Hiki ke hoʻohui ʻia nā mea hoʻohui hou aku no ka hoʻoikaika ʻana i nā waiwai kūpaʻa i ka abrasion. | Hiki ke hoʻohui ʻia nā mea hoʻohui hou aku no ka hoʻoikaika ʻana i nā waiwai kūpaʻa i ka abrasion. |
| Pae Nui | 3/16″ – 3″ (Nā laulā 72″ – 96″ – 120″) | 3/16″ – 3″ (Nā laulā 72″ – 96″ – 120″) | 1/4″ – 2 1/2″ (Nā laulā 72″ a me 96″) |
Nā Waiwai o nā Papa Kila AR400 a me AR500
ʻO AR400 he pā hao hao "thru-hardened", kūpaʻa i ka abrasion, a me ka pā hao hao. ʻO ka pae paʻakikī he 360/440 BHN me ka paʻakikī inoa o 400 BHN. ʻO ka mahana lawelawe he 400°F. Ua manaʻo ʻia kēia huahana pā no ka hoʻohana ʻana i nā noi kahi e pono ai ke kaulike maikaʻi o ka formability, weldability, toughness a me ke kūpaʻa abrasion. ʻO nā kila kūpaʻa abrasion e kūʻai pinepine ʻia i ka pae paʻakikī a ʻaʻole i kahi kemika paʻa. Loaʻa nā ʻokoʻa liʻiliʻi o ke kemika ma muli o ka wili hana. Hiki i nā noi ke komo pū me ka hoʻohana ʻana i ka hana ʻeli ʻana, nā lua pōhaku, ka lawelawe ʻana i nā mea nui, nā wili kila, a me nā ʻoihana pulp & pepa. Hoʻolālā ʻia nā huahana pā hao no nā noi liner; ʻaʻole lākou i manaʻo ʻia no ka hoʻohana ʻana ma ke ʻano he mau hale kākoʻo ponoʻī a i ʻole nā mea hāpai.
He pā hao hao "thru-hardened" ʻo AR500, kūpaʻa i ka abrasion, a me ka pā hao. ʻO ka pae paʻakikī he 470/540 BHN me ka paʻakikī inoa o 500 BHN. Ua manaʻo ʻia kēia huahana pā no ka hoʻohana ʻana i nā noi kahi e pono ai ke kaulike maikaʻi o ka hopena, ka paʻakikī a me ke kūpaʻa abrasion. Kūʻai pinepine ʻia nā kila kūpaʻa abrasion i ka pae paʻakikī a ʻaʻole i kahi kemika paʻa. Loaʻa nā ʻokoʻa liʻiliʻi o ke kemika ma muli o ka wili hana. Hiki i nā noi ke komo pū me ka hoʻohana ʻana i ka hana ʻeli ʻana, nā lua pōhaku, ka lawelawe ʻana i nā mea nui, nā wili kila, a me nā ʻoihana pulp & pepa. Hoʻolālā ʻia nā huahana pā hao no nā noi liner; ʻaʻole lākou i manaʻo ʻia no ka hoʻohana ʻana ma ke ʻano he mau hale kākoʻo ponoʻī a i ʻole nā mea hāpai.
Nā Papa Kila AR400 VS AR450 VS AR500+
Hiki i nā wili like ʻole ke loaʻa nā "meaʻai" like ʻole no ke kila AR, akā ua lawelawe ʻia ka mea i hana ʻia i kahi hoʻāʻo paʻakikī - i ʻike ʻia ʻo ka Brinell Test - e hoʻoholo ai i ke ʻano e hāʻule ai. ʻO nā hoʻāʻo Brinell i hana ʻia ma nā mea kila AR e kū pinepine i nā kikoʻī ASTM E10 no ka hoʻāʻo ʻana i ka paʻakikī o nā mea.
ʻO ka ʻokoʻa loea ma waena o AR400, AR450 a me AR500 ʻo ia ka Brinell Hardness Number (BHN), e hōʻike ana i ka pae o ka paʻakikī o ka mea.
AR400: 360-440 BHN Ma ke ʻano maʻamau
AR450: 430-480 BHN Ma ke ʻano maʻamau
AR500: 460-544 BHN Ma ke ʻano maʻamau
AR600: 570-625 BHN Ma ke ʻano maʻamau (ʻaʻole maʻamau, akā loaʻa)
