ʻO ka pā hao kila kila e hoʻopaʻakikī ana i ka wā kahiko
Wehewehe Pōkole:
ʻO ka hoʻopaʻakikī ʻana i ka wā kahiko, i ʻike ʻia hoʻi ʻo ka hoʻopaʻakikī ʻana i ka wai, he hana lapaʻau wela ia e hoʻomaikaʻi ai i ka ikaika a me ka paʻakikī o kekahi mau mea hao, me ke kila kila. ʻO ka pahuhopu o ka hoʻopaʻakikī ʻana i ka wā kahiko, ʻo ia ke hoʻoulu i ka hoʻopulapula ʻana o nā ʻāpana maikaʻi i loko o ka matrix kila kila, kahi e hoʻoikaika ai i ka mea.
ʻO ka pā hao kila kila e hoʻopaʻakikī ana i ka wā kahiko:
ʻO nā Forgings he mau ʻāpana metala i hoʻohālikelike ʻia ma o ke kaʻina hana forging, kahi e hoʻomehana ʻia ai ka mea a laila kuʻi ʻia a paʻi ʻia paha i loko o ke ʻano i makemake ʻia. Hoʻohana pinepine ʻia nā forgings kila kila no ko lākou kūpaʻa i ka pala, ka ikaika, a me ke kūpaʻa, e kūpono ai no nā noi like ʻole, me ka aerospace, ka ʻaila a me ke kinoea, a me nā mea hou aku. ʻO ka forging ʻano-ʻāpana he ʻano kikoʻī o ka metala i hoʻohuihui ʻia he ʻano lōʻihi a pololei, e like me kahi kaola a i ʻole ke koʻokoʻo. Hoʻohana pinepine ʻia nā kaola i nā noi kahi e pono ai ka lōʻihi o ka mea, e like me ke kūkulu ʻana i nā hale a i ʻole he mea maka no ka hana hou ʻana.
Nā kikoʻī o ka Bar Forgings Hardening Age:
| Papa | 630,631,632,634,635 |
| Kūlana Maʻamau | ASTM A705 |
| Anawaena | 100 – 500mm |
| ʻenehana | Hoʻoheheʻe ʻia, ʻōwili wela |
| Ka lōʻihi | 1 a 6 mika |
| Ka Lapaʻau Wela | Hoʻopaʻa palupalu ʻia, hoʻopaʻa ʻia ka hopena, hoʻopau ʻia a hoʻomaʻamaʻa ʻia |
ʻO ka hoʻohuihui kemika o ka Forged Bar:
| Papa | C | Mn | P | S | Si | Cr | Ni | Mo | Al | Ti | Co |
| 630 | 0.07 | 1.0 | 0.040 | 0.030 | 1.0 | 15-17.5 | 3-5 | - | - | - | 3.0-5.0 |
| 631 | 0.09 | 1.0 | 0.040 | 0.030 | 1.0 | 16-18 | 6.5-7.75 | - | 0.75-1.5 | - | - |
| 632 | 0.09 | 1.0 | 0.040 | 0.030 | 1.0 | 14-16 | 6.5-7.75 | 2.0-3.0 | 0.75-1.5 | - | - |
| 634 | 0.10-0.15 | 0.50-1.25 | 0.040 | 0.030 | 0.5 | 15-16 | 4-5 | 2.5-3.25 | - | - | - |
| 635 | 0.08 | 1.0 | 0.040 | 0.030 | 1.0 | 16-17.5 | 6-7.5 | - | 0.40 | 0.40-1.20 | - |
Nā waiwai mechanical o ka Forged Bar:
| ʻAno | Kūlana | Ikaika Uʻi ksi[MPa] | Ikaika Hāʻawi ksi[MPa] | % Hoʻolōʻihi | Paʻakikī Pōhaku-luawai C |
| 630 | H900 | 190[1310] | 170[1170] | 10 | 40 |
| H925 | 170[1170] | 155[1070] | 10 | 38 | |
| H1025 | 155[1070] | 145[1000] | 12 | 35 | |
| H1075 | 145[1000] | 125[860] | 13 | 32 | |
| H1100 | 140[965] | 115[795] | 14 | 31 | |
| H1150 | 135[930] | 105[725] | 16 | 28 | |
| H1150M | 115[795] | 75[520] | 18 | 24 | |
| 631 | RH950 | 185[1280] | 150[1030] | 6 | 41 |
| TH1050 | 170[1170] | 140[965] | 6 | 38 | |
| 632 | RH950 | 200[1380] | 175[1210] | 7 | - |
| TH1050 | 180[1240] | 160[1100] | 8 | - | |
| 634 | H1000 | 170[1170] | 155[1070] | 12 | 37 |
| 635 | H950 | 190[1310] | 170[1170] | 8 | 39 |
| H1000 | 180[1240] | 160[1100] | 8 | 37 | |
| H1050 | 170[1170] | 150[1035] | 10 | 35 |
He aha ke kila kila paʻakikī?
ʻO ke kila kila paʻakikī precipitation, i kapa pinepine ʻia ʻo "PH stainless steel," he ʻano kila kila e hana ʻia ana i kahi kaʻina hana i kapa ʻia ʻo precipitation hardening a i ʻole age hardening. Hoʻonui kēia kaʻina hana i nā waiwai mechanical o ka mea, ʻoiai kona ikaika a me ka paʻakikī. ʻO ke kila kila paʻakikī precipitation maʻamau.17-4 PH(ASTM A705 Papa 630), akā ʻo nā papa ʻē aʻe, e like me 15-5 PH a me 13-8 PH, hāʻule pū kekahi i loko o kēia māhele. Hoʻohui pinepine ʻia nā kila kila paʻakikī me nā mea e like me chromium, nickel, keleawe, a i kekahi manawa alumini. ʻO ka hoʻohui ʻana o kēia mau mea hoʻohuihui e paipai i ka hoʻokumu ʻia ʻana o nā precipitates i ka wā o ke kaʻina hana wela.
Pehea e hoʻopaʻakikī ʻia ai ka wai hoʻoheheʻe kila kila?
ʻO ka hoʻopaʻakikī ʻana i ke kila kila kila e pili ana i kahi kaʻina hana ʻekolu-ʻanuʻu. I ka wā mua, hana ʻia ka mea i kahi mālama hoʻonā wela kiʻekiʻe, kahi e hoʻoheheʻe ai nā ʻātoma solute, e hana ana i kahi hopena hoʻokahi-ʻāpana. ʻO kēia ke alakaʻi i ka hoʻokumu ʻia ʻana o nā nuclei microscopic he nui a i ʻole "zones" ma luna o ka metala. Ma hope iho, hana ʻia ka hoʻomaʻalili wikiwiki ma mua o ka palena solubility, e hana ana i kahi hopena paʻa supersaturated i kahi mokuʻāina metastable. I ka hana hope loa, hoʻomehana ʻia ka hopena supersaturated i kahi mahana waena, e hoʻoulu ai i ka ua. A laila mālama ʻia ka mea ma kēia mokuʻāina a hiki i ka wā e paʻakikī ai. Pono ka hoʻopaʻakikī ʻana i ka wā e pono ai ka hui ʻana o ka alloy i loko o ka palena solubility, e hōʻoiaʻiʻo ana i ka pono o ke kaʻina hana.
He aha nā ʻano kila paʻakikī i hoʻoheheʻe ʻia?
Loaʻa nā kila hoʻopaʻakikī i ka ua i nā ʻano like ʻole, kēlā me kēia i hana ʻia e hoʻokō i nā koi hana a me nā noi kikoʻī. ʻO nā ʻano maʻamau e komo pū me 17-4 PH, 15-5 PH, 13-8 PH, 17-7 PH, A-286, Custom 450, Custom 630 (17-4 PHMod), a me Carpenter Custom 455. Hāʻawi kēia mau kila i ka hui pū ʻana o ka ikaika kiʻekiʻe, ke kūpaʻa i ka pala, a me ka paʻakikī, e kūpono ai lākou no nā ʻoihana like ʻole e like me ka aerospace, kaʻa, ka lāʻau lapaʻau, a me ka hana kemika. ʻO ke koho ʻana o ke kila paʻakikī-precipitation e pili ana i nā mea e like me ke kaiapuni noi, ka hana o nā mea, a me nā kikoʻī hana.
Hoʻopili ʻana:
1. He mea nui loa ka hoʻopili ʻana, ʻoiai hoʻi i nā ukana o ka honua kahi e hele ai nā ukana ma nā ʻano like ʻole e hiki ai i kahi i manaʻo nui ʻia, no laila ke kau nei mākou i ka manaʻo nui e pili ana i ka hoʻopili ʻana.
2. Hoʻopili ʻo Saky Steel i kā mākou waiwai ma nā ʻano he nui e pili ana i nā huahana. Hoʻopili mākou i kā mākou huahana ma nā ʻano he nui, e like me,
