Na ọgwụgwọ okpomọkụ nke ịgha, n'ihi nnukwu ike nke ọkụ ọkụ ọkụ na ogologo oge mkpuchi, ike oriri dị ukwuu na usoro dum, n'ime ogologo oge, otu esi echekwa ike na ọgwụgwọ okpomọkụ nke ịgha mkpụrụ bụ nsogbu siri ike.

Ihe a na-akpọ "ihe mkpuchi efu" quenching, bụ igosi ọkụ ọkụ ọkụ, elu ya na isi ya ruo okpomọkụ okpomọkụ na-ekpo ọkụ, ọ dịghị ihe mkpuchi, usoro nhazi ngwa ngwa na-eme ka ọ dị jụụ. Dị ka nkà mmụta omenala austenitic si kwuo, ịgha agha ga-enwe ogologo oge mkpuchi ogologo oge n'ime usoro kpo oku, nke mere na iji mezue nucleation na uto nke residisutement nke austenitic. homogenization nke austenitic.The ugbu quenching na kpo oku technology nke forgings na-emepụta n'okpuru nduzi nke a tiory.Tụnyere na nke ugbu a quenching usoro, "efu okpomọkụ ichekwa" quenching na-azọpụta oge nke okpomọkụ ichebe chọrọ site homogenization nke austenitic Ọdịdị, ọ bụghị nanị na nwere ike ịzọpụta 20% -30% nke ume ma ọ bụ 30% nke ume, na-ebelata mmepụta nke ike ma ọ bụ 20% -30% nke ume, ma ọ bụ 30% na-ebelata mmepụta ike. ntụpọ nke oxidation, decarbonization, deformation na ihe ndị ọzọ, nke na-eme ka mma nke ngwaahịa dị mma.

Mgbe carbon ígwè na ala alloy ígwè na-ewe iwe ọkụ na Ac1 ma ọ bụ Ac2, na homogenization usoro nke austenite na mgbasa nke carbides na pearlite ngwa ngwa.Mgbe ígwè size bụ nke mkpa akụkụ nso, ngụkọta oge nke kpo oku adịghị mkpa ka atụle thermal mkpuchi, ya bụ, iji nweta efu thermal mkpuchi quenching na dayameta nke 4 dị ka ihe atụ, ọ dịghị ihe atụ na-arụ ọrụ 5 ígwè. 100mm, kpo oku na ikuku oku, okpomọkụ nke elu na isi fọrọ nke nta ka erute n'otu oge ahụ, ya mere, ya edo oge nwere ike na-eleghara anya, ma e jiri ya tụnyere omenala mmepụta usoro (r = aD) na nnukwu kpo oku ọnụọgụ, nwere ike belata site fọrọ nke nta 20% -25% quenching kpo oku oge.

The theoretical analysis and experimental results show na ọ ga-ekwe omume ịmụta "efu mkpuchi" na quenching na normalizing kpo oku nke structural steel.In akpan akpan, 45, 45 mn2 carbon structural ígwè ma ọ bụ otu element alloy structural ígwè, ojiji nke "zero mkpuchi" usoro nwere ike hụ na n'ibu Njirimara nke chọrọ; nke "ihe mkpuchi efu" kpo oku karịa ikpo ọkụ ọdịnala nwere ike ịzọpụta oge kpo oku nke ihe dịka 50%, mkpokọta ike nchekwa nke 10% -15%, melite arụmọrụ nke 20% -30%, n'otu oge ahụ "ihe mkpuchi efu" usoro nkwụsị na-enyere aka mee ka ọka dị mma, meziwanye ike.

(site na: 168 net forgings)