me ake ciki 718

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Inconel 718 shine gami da tushen nickel wanda za'a iya taurare ta hazo. Har yanzu yana nuna ƙarfin yawan amfanin ƙasa, ƙarfin ƙwanƙwasa da ƙarfi mai rarrafe a yanayin zafi har zuwa 704 ° C. Shekaru hardening dauki na 718 gami yana jinkirin, don haka ba zai taurare tare da dumama da sanyaya a lokacin annealing da waldi. Idan aka kwatanta da sauran superalloys na tushen nickel da aka ƙara da aluminum da titanium, 718 gami yana da kyakkyawan aikin walda.

AMS5662 shine farkon yanayin 718 kuma mafi laushi a cikin aji AMS. Ta hanyar maganin zafi, AMS5662 za a iya canza shi zuwa AMS5663. Akwai hanyoyi guda biyu na maganin zafi, ɗayan zai iya inganta tasirin tasiri, ɗayan kuma zai iya inganta haɓaka da haɓaka aikin haɓaka. Taurin AMS5662 shine kusan 20-25HRC, wanda za'a iya ƙara shi zuwa 36-44HRC ta hanyar maganin tsufa.
Bambanci tsakanin AMS5664 da AMS5662 da 5663 ya fi girma, kayan abu ne daban-daban, wanda ya haɗa da tsarin tsari mai rikitarwa, don haka abu yana da ƙarfin ƙarfi da ƙarfin samar da ƙarfi, yayin saduwa da wasu buƙatun tsarin hatsi. AMS5664 ya dace da aikace-aikacen sararin samaniya waɗanda ke buƙatar ƙarfi mafi girma.

Innel 718 Aikace-aikace

Injin jet da sassa na fuselage masu sauri, kamar ƙafafu, ruwan injin turbine, gaskets, kusoshi masu zafi, ɗaukas, da dai sauransu.

Innel 718 Jiyya mai zafi

1021-1052 ° C bayani annealing na 1-2.5 hours, sa'an nan ruwa quenching. Bars tare da diamita kasa da 3.5 "ana iya kashe su da ruwa ko sanyaya iska. Tsufa na tsawon sa'o'i 6-8 a 774-802 ° C, sa'an nan kuma sanyaya iska.

Innel 718 Halayen Inji

Ƙarfin ƙarfi: 150ksi ko fiye
Ƙarfin ƙima: 120-145ksi
4D elongation: fiye da 20%
Rushewar sashe (dia≤10"): 35% ko fiye
Rushewar sashe (dia = 10"): fiye da 25%
Hardness: 30-40HRC
Ƙarfin tasirin V-notch (-59 ° C ko ƙasa):
Matsakaicin makamashi: fiye da 35ft/lbs (47J)
Ƙarfafa mafi ƙarancin ƙarfi: 30ft / lbs (40J)

Innel 718 jiki Properties

Yawa: 8.44
Matsakaicin matsakaicin matsakaicin coefficient
77-200 ° F 7.10 X 10-6in / a / ° F
77-400 ° F 7.50 X 10-6in / a / ° F
77-600 ° F 7.70 X 10-6in / a / ° F
77-800 ° F 7.90 X 10-6in / a / ° F
77-1000 ° F 8.00 X 10-6in / a / ° F
77-1200 ° F 8.40 X 10-6in / a / ° F
77-1400 ° F 8.90 X 10-6in / a / ° F

Modul na roba (E)

Juriya (70 ° F): 728.0 ohm-cir-mil / ft
Narkar da nisa: 2200-2450 ° F

Tasirin zafin magani na bayani akan aikin zafin jiki mai juzu'i na kayan 718

Lura: Samfurin gwaji shine yanki na murabba'i hudu tare da tsawon gefe na 4 ". An yi amfani da samfurin gwajin don maganin 2 hours a zazzabi a cikin tebur da kuma sanyaya iska. Maganin tsufa shine 718 ° C don 8 hours. da 56 ° C / awa Ana sanyaya saurin zuwa 621 ° C, ana kiyaye shi na awanni 8, sannan a sanyaya iska.
Tasirin zafin magani na bayani akan aikin fashewar damuwa na 718 abu

Lura: Samfurin gwajin shine yanki na murabba'in murabba'i huɗu tare da tsayin gefe na 4 ". Yana da maganin da aka bi da shi a zafin jiki da aka nuna a cikin tebur na sa'o'i 2, sanyaya iska, sannan shekaru a 718 ° C don 8 hours, da tanderu- sanyaya a cikin adadin 56 ° C / awa Har zuwa 621 ° C, adana zafi na sa'o'i takwas, kuma a ƙarshe an sanyaya iska.

Gwajin tensile na dumama

Lura: Samfurin gwajin shine shingen zagaye na dia12.7mm, zafi da aka bi da shi a 982 ° C na awa 1, sanyaya iska a + 718 ° C na sa'o'i 8, sanyaya zuwa 621 ° C, kiyaye shi cikin zafi na 8 hours, sannan sanyaya iska.

Gwajin ƙarancin zafin jiki

Lura: Samfurin gwajin abu ne na murabba'in murabba'i huɗu tare da tsayin gefen 101.6mm. Ana kula da shi a zafin jiki na 1066 ° C na tsawon sa'o'i 2, ana sanyaya iska a + 718 ° C na tsawon sa'o'i 8, kuma a sanyaya shi zuwa 621 ° C a cikin tanderun na tsawon sa'o'i 8 sannan a sanyaya iska.

Gwajin fashewar damuwa

Lura: Jiyya mai zafi a 982 ° C na awa 1, sanyaya iska + 718 ° C na tsawon sa'o'i 8, sanyaya tanderu zuwa 621 ° C, adana zafi na sa'o'i 8, sannan sanyaya iska.

zafi magani

Hanyar 1: Sami mafi kyawun ƙarfin ƙarfi da ƙarfin damuwa
954-982 ° C, awa 1, sanyaya iska + 718 ° C, sa'o'i 8, sanyaya zuwa 621 ° C a 56 ° C / awa, kiyaye tsawon sa'o'i 8, sannan sanyaya iska.
Hanyar 2: Sami mafi kyawun ƙarfin ƙarfi a dakin da zafin jiki da ƙananan zafin jiki
Zafin magani a 1066 ° C na 1-2 hours, iska sanyaya + 718 ° C na 8 hours, sanyaya zuwa 621 ° C a 56 ° C / hour, rike da 8 hours, sa'an nan iska sanyaya.

Ayyukan sarrafawa

Aikin zafi
The zafin jiki na zafi sarrafa tanderu bai wuce 1121 ° C. Idan aiki zafin jiki ne a kasa 593 ° C, da zafin jiki kewayon sanyi aiki ana sarrafa a 927-1010 ° C, wanda zai iya bayar da. ƙirƙira ƙarfi. Guji dogon lokacin dumama a cikin tanderun lokacin ƙirƙira.

Machine Plus

Dukansu jihohin da aka soke da kuma masu taurin shekaru ana iya sarrafa su. Shekaru taurare yanayin ya fi dacewa don karya, kuma ƙarshen farfajiya ya fi kyau. Don kayan da aka cire, rayuwar kayan aikin injin ya ɗan ɗan fi tsayi.

walda

Dukan 718's annealed jihar da kuma tsufa halin za a iya welded. Lokacin walda kayan tsufa, wuraren da zafin walda ya tausasa zai lalace.

Shiga wannan labarin ： me ake ciki 718

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