Ihe nkedo ductile maka mkpuchi njedebe ihe egwu egwu

Okwu mmalite:

Iron Ductile, nke a makwaara dị ka ígwè nkedo ductile, ígwè nkedo nodular, ígwè graphite spherical, spherical graphite cast iron na SG iron, bụ ụdị nkedo nke nwere graphite nke Keith Millis chọtara na 1943.Ọ bụ ezie na ọtụtụ ụdị nke nkedo adịghị ike na mgbakasị ahụ na mgbakasị ahụ, ígwè ductile na-enwe mmetụta karịa na ike ọgwụgwụ, n'ihi ntinye graphite nodular ya.Iron ductile abụghị otu ihe kama ọ bụ akụkụ nke otu ihe nke nwere ike ịmepụta ya na ihe dị iche iche site na njikwa nke microstructure ha.Ihe njirimara na-akọwakarị nke otu ihe a bụ ọdịdị nke graphite.N'ime ígwè ductile, graphite dị n'ụdị nodules kama flakes dị ka ígwè isi awọ.Ebe flakes graphite dị nkọ na-emepụta ebe ịta ahụhụ n'ime matriks metal ahụ, nodules gbara okirikiri na-egbochi imepụta mgbape, si otú a na-enye ductility emelitere nke na-enye alloy aha ya.

Austempered ductile iron (ADI; ya bụ, austenite tempered[7]) ka achọpụtara n'afọ ndị 1950 mana emere ya ahịa wee nweta ihe ịga nke ọma naanị afọ ole na ole ka e mesịrị.Na ADI, a na-emegharị ihe owuwu metallurgical site na usoro ọgwụgwọ okpomọkụ dị ọkaibe.

Ihe mejupụtara

Iberibe oke (%) maka nkedo ígwè ductile ferritic [8]

Ngwakọta ígwè ductile ndị ọzọ na-enwekwa obere sọlfọ.

Carbon, 3.2-3.60%

Silikon, 2.2-2.8%

Manganese, 0.1-0.2%

Magnesium, 0.03-0.04%

Phosphorus, 0.005-0.04%

sọlfọ, 0.005-0.02%

Ọla kọpa, <0.40%

Ígwè, nguzozi

Enwere ike ịgbakwunye ihe ndị dị ka ọla kọpa ma ọ bụ tin ka ọ na-abawanye tensile ma na-enye ike ma na-ebelata ductility n'otu oge.Enwere ike nweta nguzogide corrosion ka mma site na iji nickel, ọla kọpa, ma ọ bụ chromium dị iche iche dochie 15-30% nke ígwè dị na alloy.

Silicon dị ka ihe nhazi graphite nwere ike iji aluminum dochie akụkụ ụfọdụ iji nye nchebe oxidation ka mma.[9]

HONGDANkedo ígwè ductileings:

Na mbido 2021, HONGDA wuru ụlọ nrụpụta ọhụrụ iji webata akụrụngwa na ahịrị mmepụta maka nkedo Ductile Iron.
1. Ihe: QT450 #-10 na Spheroidization ọnụego karịrị ọkwa III iji nweta ezigbo mma nke nkedo iji kwado arịrịọ gị.
2. Akpaaka mmepụta akara iji ruo oke arụmọrụ na nnukwu mmepụta ikike, 550T / ọnwa, iji kwado mkpa gị ngwa ngwa.
3.Applications: ihe nkedo ígwè ductile maka ihe mkpuchi mkpuchi, ihe nkedo na-abaghị uru na ihe nkedo akụkụ n'ime 70KGS.