Sandar ƙarfe mai taurarewa mai tsufa
Takaitaccen Bayani:
Taurare-ƙarfe, wanda kuma aka sani da taurare-ƙarfe na hazo, tsari ne na maganin zafi wanda ke inganta ƙarfi da tauri na wasu ƙarfe, gami da ƙarfe mai kauri. Manufar taurare-ƙarfe shine haifar da hazo mai laushi a cikin matrix na ƙarfe mai kauri, wanda ke ƙarfafa kayan.
Sandar ƙarfe mai taurarewa mai tsufa:
Kayan ƙarfe na ƙarfe waɗanda aka ƙera ta hanyar tsarin ƙirƙira, inda ake dumama kayan sannan a bugi ko a matse su cikin siffar da ake so. Sau da yawa ana zaɓar kayan ƙarfe na bakin ƙarfe saboda juriyarsu ta tsatsa, ƙarfi, da juriyarsu, wanda hakan ya sa suka dace da aikace-aikace daban-daban, gami da sararin samaniya, mai da iskar gas, da sauransu. Kayan ƙarfe na siffar sandar wani nau'i ne na musamman na ƙarfe na ƙirƙira wanda yawanci yana da tsayin daka, madaidaiciya, kama da sandar ko sandar. Sau da yawa ana amfani da sandunan a aikace inda ake buƙatar dogon abu mai ɗorewa, kamar gina gine-gine ko azaman kayan aiki don ƙarin sarrafawa.
Bayani dalla-dalla na Ma'aunin Forgings na Age-Hardening:
| Matsayi | 630,631,632,634,635 |
| Daidaitacce | ASTM A705 |
| diamita | 100 - 500mm |
| Fasaha | An ƙirƙira, an yi birgima mai zafi |
| Tsawon | Mita 1 zuwa 6 |
| Maganin Zafi | An yi laushi a cikin annashuwa, an yi maganin annashuwa, an kashe shi & an yi masa zafi |
Sinadarin Sinadarin da aka ƙirƙira:
| Matsayi | 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 | - |
Kayan aikin injina na ƙarfe:
| Nau'i | Yanayi | Ƙarfin Taurin Ksi[MPa] | Ƙarfin Samar da Ksi[MPa] | Ƙarawa % | Taurin Rock-well 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 |
Menene Ruwan Sama Mai Taurare Bakin Karfe?
Karfe mai tauri da ruwa, wanda aka fi sani da "bakin karfe na PH," wani nau'in karfe ne da ke fuskantar wani tsari da ake kira tauri da ruwa ko tauri da shekaru. Wannan tsari yana inganta halayen kayan, musamman ƙarfi da tauri. Mafi yawan ƙarfe mai tauri da ruwa ke haifarwa shinePH 17-4(ASTM A705 Grade 630), amma wasu ma'auni, kamar 15-5 PH da 13-8 PH, suma suna cikin wannan rukuni. Karfe masu taurarewa na bakin ƙarfe galibi ana haɗa su da abubuwa kamar chromium, nickel, jan ƙarfe, da kuma wani lokacin aluminum. Ƙarin waɗannan abubuwan haɗin suna haɓaka samuwar abubuwan da suka fashe yayin aikin sarrafa zafi.
Ta yaya ruwan sama na bakin karfe yake taurare?
Karfe mai tauri na tsawon shekaru yana buƙatar tsari mai matakai uku. Da farko, kayan yana fuskantar maganin maganin zafi mai zafi, inda ƙwayoyin narkewa ke narkewa, suna samar da mafita mai matakai ɗaya. Wannan yana haifar da samuwar ƙwayoyin microscopic ko "yankuna" da yawa akan ƙarfe. Daga baya, sanyaya cikin sauri yana faruwa fiye da iyakar narkewa, yana ƙirƙirar mafita mai ƙarfi mai cikakken ƙarfi a cikin yanayin metastable. A mataki na ƙarshe, ana dumama maganin supersaturated zuwa matsakaicin zafin jiki, wanda ke haifar da hazo. Sannan ana ajiye kayan a cikin wannan yanayin har sai ya yi tauri. Nasarar tauri na shekaru yana buƙatar haɗin ƙarfe ya kasance cikin iyakar narkewa, yana tabbatar da ingancin aikin.
Waɗanne nau'ikan ƙarfe masu tauri ne na ruwan sama?
Karfe masu taurarewa suna zuwa da nau'uka daban-daban, kowannensu an tsara shi don biyan takamaiman buƙatun aiki da aikace-aikace. Nau'ikan da aka saba da su sun haɗa da 17-4 PH, 15-5 PH, 13-8 PH, 17-7 PH, A-286, Custom 450, Custom 630 (PH 17-4Mod), da Carpenter Custom 455. Waɗannan ƙarfe suna ba da haɗin ƙarfi mai ƙarfi, juriya ga tsatsa, da tauri, wanda hakan ya sa suka dace da masana'antu daban-daban kamar su sararin samaniya, motoci, likitanci, da sarrafa sinadarai. Zaɓin ƙarfe mai taurarewa ya dogara da abubuwa kamar yanayin aikace-aikace, aikin kayan aiki, da ƙayyadaddun masana'antu.
Shiryawa:
1. Shirya kaya yana da matuƙar muhimmanci musamman a yanayin jigilar kaya zuwa ƙasashen waje inda jigilar kaya ke ratsawa ta hanyoyi daban-daban don isa inda za a kai, don haka muna ba da kulawa ta musamman game da shirya kaya.
2. Saky Steel's suna tattara kayanmu ta hanyoyi da dama bisa ga kayayyakin. Muna tattara kayayyakinmu ta hanyoyi da dama, kamar,
