Huaxiao Bokhoni mabapi 409 409L khoele e batang ea tšepe e sa hloekang, 409 409L CRC

Botenya: 0.2mm - 8.0mm

Bophara: 600mm - 2000mm, lihlahisoa tse patisaneng pls e hlahloba lihlahisoa tsa hlobolisa

Boima ba boima ba coil: 25MT

Coil ID: 508mm, 610mm

Qetella: 2B,2D

409 Kereiti e ts'oanang ho tsoa maemong a fapaneng a naha

1.4512 S40930 0Cr11Ti

409 Chemical Component :

C:≤0.08 ，Si :≤1.0 Mn ：≤1.0 ， S ：≤0.03 ，P :≤0.045, Cr :10.5-11.7 ，Ni :0.5 Max,

Theko: 6xC - 0.75

Thepa ea 409 ea Mechini :

Matla a ho tiea : > 380 Mpa

Kotulo Matla : >205 Mpa

Elong (%): > 20%

boima: <HRB88

Angle e Kobehang: likhato tse 180

409L Kereiti e ts'oanang ho tsoa maemong a fapaneng a naha

SUH409L S40903 00Cr11Ti 022Cr11Ti

Karolo ea lik'hemik'hale ea 409L :

C:≤0.03 ，Si :≤1.0 Mn ：≤1.0 ， S ：≤0.03 ，P :≤0.045, Cr :10.5-11.7 ，Ni :0.5 Max,

Theko: 6xC - 0.75

409L Thepa ea Mechini :

Matla a ho tiea : > 380 Mpa

Kotulo Matla : >205 Mpa

Elong (%): > 20%

boima: <HRB88

Angle e Kobehang: likhato tse 180

Tlhaloso e mabapi le 409 409L e batang e kolobisitsoeng ea tšepe e sa hloekang

409L/S40903 tšepe e sa jeleng paate e sebelisoa haholo-holo ho etsa lisebelisoa tsa kalafo ea khase ea mosi oa likoloi.

409 409L e batang e kentsoeng tšepe e sa hloekang Litšobotsi tsa Crystalline

(1) Sebaka se tiileng le sa metsi sa mekhahlelo e 'meli ea tšepe ea 409L e nyane haholo, e ka tlase ho 30 ° C.

(2) Hoo e ka bang ha ho na karolo ea γ mocheso o phahameng. Ka hona, ha tšepe ea 409L e qala ho khanya ka mor'a ho tšela, tekanyo ea supercooling ea mohato oa mokelikeli o moholo ka lebaka la ho kopana ka ho toba le holim'a kristale, 'me ka nako e ts'oanang, bokaholimo ba kristallise bo khothalletsa nucleation e sa tsitsang. 

Ka hona, tekanyo ea nucleation ea mokelikeli oa mokelikeli o phahame 'me sekhahla sa sebopeho se phahame. Likristale tse ntle tsa equiaxed holim'a metsi. Ho thehoa ha lijo-thollo tse ntle tse lekantsoeng ka holim'a metsi ho potlakile, 'me li-carbides tsa titanium li khutšoanyane haholo hore li ka tsitsa. Kamora ho thehoa ha libaka tse ntle tsa kristale tse lekantsoeng, tšepe e akaretsang e etsa likristale tse kholo, empa tšepe ea 409L ha e bonts'e likristale tse kholo. 

Ka lebaka la mocheso o moqotetsane sebakeng sa mekhahlelo e 'meli ea mokelikeli, tšepe ea 409L e na le karolo e nyane ea overcooling zone nakong ea crystallization,' me likristale tsa columnar ha li hōle habonolo. 

Ka nako e ts'oanang, ka mor'a hore ho thehoe sebaka se setle sa equiaxed kristale, titanium le carbon li na le nako ea ho hasana ho etsa likaroloana tsa titanium carbide ka mor'a nako e itseng ho khothalletsa batho bao e seng ba ikemetseng. Mabaka a mabeli a ka holimo a etsa hore sebaka seo se hlahise likristale tse equiaxed ntle le likristale tsa columnar. 

Ha ho na meaho ea kristale e kholo karolong ea sefapano, tseo kaofela e leng likristale tse lekanang, empa tsa boholo bo fapaneng. Nakong ea ho tšela, ha mocheso oa letlapa o theohela ho 1100 ° C, haeba carbon content e phahame, karolo ea Cr le C e etsa carbides, 'me libaka tse senyehileng tsa chromium li hlaha ho pota-potile carbides,' me karolo e nyenyane ea δ e ka 'na ea e-ba teng. hlaha. 

Mothating ona mekhahlelo e 'meli e fapaneng ea tšepe e hlaha ka har'a tšepe, kapa karolo ea karolo ea delta ke 32% ho isa ho 60% sebakeng se se nang letho sa polasetiki. Khabone ea tšepe ea 409L e tlase haholo, leha ho na le karolo ea δ, chelete e nyane. Ka hona, ha ho na tšusumetso e kholo ts'ebetsong.

Ho na le hoo e ka bang ha ho na α → γ phetoho ea mohato ho tloha mocheso o phahameng ho ea mocheso o tlase oa 409 409L khoele ea tšepe e batang, kahoo lijo-thollo li bonolo ho hōla, mohaho o mahoashe oa ferrite o hlaha, 'me matla a tlaase. Ka ho lahla ho tsoelang pele, ha letlapa le khaoloa holimo, setsoe se bonolo ho hlaha. Phenomenon, e amang tlhahiso e tloaelehileng. Bothata bo ka sehloohong ho crystallization ea 409 409L khoele e batang ea tšepe e sa hloekang ke ts'ebetso e fokotsehileng e bakoang ke lijo-thollo tse mahoashe.

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