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Urupapuro 440
urupapuro rw'icyuma
Urupapuro 440
Urupapuro 440

Urupapuro 440

Ibyuma bitagira umuyonga ni ibyuma-bivanze cyane bifite imbaraga zo kurwanya ruswa ugereranije nandi mashanyarazi bitewe na chromium nyinshi. Ukurikije imiterere yabyo, bagabanijwemo ubwoko butatu nka ferritic, austenitis, na martensitike. Irindi tsinda ryibyuma bitagira umwanda ni ibyuma bikomera. Ni ihuriro ryibyuma bya martensitike na austenitike. Ifite imbaraga nyinshi, irwanya ruswa iringaniye, hamwe no gukomera no kwambara. Icyiciro cya 440C kirashobora kugera, nyuma yo kuvura ubushyuhe, imbaraga zisumba izindi, ubukana no kwambara birwanya amavuta yose adafite umwanda. Ibirimo byinshi bya karubone bifite inshingano zo kubiranga, bituma 440C ikwiranye cyane na porogaramu nko gufata imipira n'ibice bya valve.
Amakuru y'ibicuruzwa

Ibyuma bitagira umuyonga ni ibyuma-bivanze cyane bifite imbaraga zo kurwanya ruswa ugereranije nandi mashanyarazi bitewe na chromium nyinshi. Ukurikije imiterere yabyo, bagabanijwemo ubwoko butatu nka ferritic, austenitis, na martensitike. Irindi tsinda ryibyuma bitagira umwanda ni ibyuma bikomera. Nibihuza ibyuma bya martensitike na austenitis.

Icyiciro cya 440C ibyuma bitagira umuyonga nicyuma kinini cya karubone martensitike. Ifite imbaraga nyinshi, irwanya ruswa iringaniye, hamwe no gukomera no kwambara. Icyiciro cya 440C kirashobora kugera, nyuma yo kuvura ubushyuhe, imbaraga zisumba izindi, ubukana no kwambara birwanya amavuta yose adafite umwanda. Ibirimo byinshi bya karubone bifite inshingano zo kubiranga, bituma 440C ikwiranye cyane na porogaramu nko gufata imipira n'ibice bya valve.

Ibisobanuro birambuye

Ibigize imiti ingana na 440C ibyuma bitagira umwanda

Icyiciro440C
Ibikoresho Min. Icyiza.
Carbone 0.95 1.20
Manganese - 1.00
Silicon - 1.00
Fosifore - 0.040
Amazi - 0.030
Chromium 16.00 18.00
Molybdenum - 0.75
Icyuma Kuringaniza


Imiterere yumubiri yo mu cyiciro cya 440 ibyuma bitagira umwanda

Icyiciro Ubucucike (kg / m3) Modulus (GPa) Hagati ya Coefficient yo Kwagura Ubushyuhe (mm / m / C) Amashanyarazi (W / m.K) Ubushyuhe bwihariye
0-100C (J / kg.K)
Kurwanya amashanyarazi (nW.m)
0-100C 0-200C 0-600C kuri 100C kuri 500C
440A / B / C. 7650 200 10.1 10.3 11.7 24.2 - 460 600


440C Ibisobanuro bijyanye

Amerika Ubudage Ubuyapani Australiya
ASTM A276-98b 440C
SAE 51440C AISI 440C
UNS S44004
W.Nr 1.4125 X105CrMo17 JIS G4303 SuS 440C AS 2837-1986 440C



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