M42 gburugburu mmanya

M42 super high speed steel bụ igwe cobalt dị elu nke nwere ihe mejupụtara kemịkalụ emebere maka ike siri ike na ike dị ọkụ. Ngwongwo ndị a na-eme ka ígwè ahụ bụrụ nhọrọ magburu onwe ya maka ịrụ ọrụ siri ike na nke siri ike nke mbụ, alloys siri ike, na igwe siri ike, ihe na-adịghị mma nke a na-eji na mbara igwe, mmanụ, na ụlọ ọrụ mmepụta ike.

M42 na-egosiputa nguzogide iyi dị mma site n'ike siri ike ọgwụgwọ dị elu (68 ruo 70 HRC), yana ọdịnaya cobalt dị elu na-enye ike siri ike. Dị ka ndị dị otú ahụ, akụkụ mbepụ na ngwá ọrụ ndị sitere na M42 super high speed steel na-adị nkọ ma na-esi ike na-arụ ọrụ dị arọ na ngwa ngwa mmepụta dị elu.

ngwa: Ihe mgbagọ agbagọ, mgbata, ndị na-egwe ọka, reamers, broaches, saws, mma, na eri na-atụgharị na-anwụ.

Mejupụtara

AKWỤKWỌ MMỤTA

NWAANYI AGBARA

Njupụta: 0.282 lb/in3 (7806 n'arọ/m3)

· Nnukwu ike ndọda: 7.81

· Modulus of Elasticity: 30 x 106 psi (207 GPa)

· Machinability: 35-40% nke a 1% carbon ígwè

Ntuziaka ọgwụgwọ okpomọkụ

NA-AKWỤKWỌ

Na-ekpo ọkụ: Kpoo ọkụ n'ọkwa na-agaghị agafe 400°F kwa elekere (222°C kwa elekere) ruo 1500-1600°F (816-871°C), ma ha nhata.

Ịkwado (Ọkụ dị elu): Kpoo ọkụ ngwa ngwa site na preheat.
Ọkụ: 2150-2175°F (1177-1191°C)
Nnu: 2125-2150°F (1163-1177°C)

Iji mee ka ike sie ike, jiri okpomọkụ kacha ala.
Iji mee ka ike siri ike dị ọkụ, jiri okpomọkụ kachasị elu.

Na-emenyụ: Gas nwere nrụgide, mmanụ ọkụ, ma ọ bụ nnu. Maka ikuku nwere nrụgide, ọ̀tụ̀tụ̀ nkwụsịtụ ọsọ ọsọ ruo n'okpuru 1000°F
(538°C) dị oké mkpa iji nweta ihe ndị a chọrọ. 
Maka mmanụ, menyụọ ruo oji, ihe dị ka 900°F (482°C), wee dị jụụ n'ikuku ruo 150 -125°F (66-51°C).
Maka nnu nke edobere na 1000-1100°F (538-593°C), haha ​​nhata, wee dị jụụ n'ikuku ruo 150 -125°F (66-51°C).

Na-ewe iwe: Iwe ozugbo emenyụchara. Oke okpomọkụ a na-ahụkarị bụ 950-1050°F (510-566°C). Jide na okpomọkụ maka awa 2, wee mee ka ikuku dị jụụ ruo okpomọkụ. Achọrọ iwe ọkụ ugboro atọ.

NA-ANEALING

A ga-emerịrị mgbakasị ahụ mgbe arụchara ọrụ ọkụ na tupu ịmaliteghachi ike.

Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1500-1575°F (843-857°C), and hold for 1 hour per inch (25.4 mm) of thickness, minimum of 2 hours. Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air. The resultant hardness should be 269 HBW or lower.

Ịgbaghara

Preheat to 1200-1400°F (649-760°C) and equalize. Then heat rapidly to 2000-2100°F (1093-1149°C) and equalize prior to forging. Reheat if work piece temperature falls below 1800°F (982°C). After forging, cool slowly to ambient temperature in the furnace or buried in insulating material, then anneal as described above