Nyocha nke akụrụngwa na ihe mejupụtara kemịkalụ nke 20CrMnTi oyi kpụrụ ọkpọkọ enweghị nkebi

20CrMnTi ígwè a na-akpọ gia steel, na ọtụtụ akụkụ na-eji 20CrMnTi.

20CrMnTienweghị nkebi ígwè ọkpọkọenwere ike kewaa ụzọ atọ: oyi na-atụ, ọkụ na-ekpo ọkụ naọkpọkọ ígwè na-egbuke egbuke nke oyi na-atụ, dị iche iche chọrọ na usoro dị iche iche.Otú ọ dị, ụfọdụ nkeji na-eji gburugburu ígwè na-emepụta akụkụ na-echeghị na nnọchi nke ígwè ọkpọkọ.Dochie 20CrMnTi ọkpọkọ igwe anaghị agba nchara oyi na-adọkpụ na 20CrMbTi gburugburu igwe abụghị naanị na-echekwa akụrụngwa na oge ọrụ, kamakwa na-ebelata ọnụ ahịa ma na-abawanye asọmpi ahịa.20CrMnTi na 30CrMnSiA oyi na-adọkpụ ígwè ọkpọkọ bụ carburized steels na ezi arụmọrụ, elu hardening, siri ike na eyi na-eguzogide elu na isi ike mgbe carburizing na quenching, elu ala okpomọkụ mmetụta siri ike, ọkara weldability, na ezi machinability mgbe normalize.20CrMnTiọkpọkọ igwe anaghị agba nchara oyi-adọkpụna-abụkarị obere carbon ígwè nwere carbon ọdịnaya nke 0.17% - 0.24%.A na-ejikarị ya eme ihe n'ụgbọ ala iji rụpụta ngwa nnyefe.Ọ bụ ọkara hardenable carburized carbon ígwè, ọkara CrMnTi ígwè, na elu hardenability.N'okpuru ọnọdụ nke ijide n'aka na ike siri ike, ọ nwere ike dị elu na ike siri ike, karịsịa nnukwu mmetụta okpomọkụ dị elu.20CrMnTi elu carburized na ígwè siri ike.Ezi machinability, obere nrụrụ na nhazi pụrụ iche, na ezigbo ike ọgwụgwụ.Ebumnuche: maka gia, shafts, akụkụ Piston, wdg na-eji maka akụkụ pụrụ iche nke ụgbọ ala na ụgbọ elu.

20CrMnTi ọkọlọtọ: GB/T 3077-1988

Njirimara na oke nke ngwa nke20CrMnTi oyi-adọkpụrụ enweghị nkebi ígwè ọkpọkọ:

A na-eji ya na-emepụta akụkụ ndị dị mkpa nke nwere akụkụ na-erughị 30mm nke na-ebu oke ọsọ, ibu ibu ma ọ bụ ibu dị arọ, mmetụta na esemokwu, dị ka ihe mgbanaka, mgbanaka mgbanaka, gia shaft crossheads, wdg.

Ngwakọta kemịkalụ nke 20CrMnTi oyi-adọkpụ enweghị nkebi ígwè anwụrụ (isi):

Carbon C: 0.17 ~ 0.23

Silicon Si: 0.17 ~ 0.37

Manganese mmadụ: 0.80 ~ 1.10

Sulfur S: ọdịnaya fọdụrụ ekwe omume ≤ 0.035

Phosphorus P: ọdịnaya fọdụrụ ekwe omume ≤ 0.035

Chromium Cr: 1.00 ~ 1.3020CrMnTi igwe anaghị agba nchara na-ekpo ọkụ

Nickel Ni: ọdịnaya fọdụrụ ekwe ≤ 0.030

Ọla kọpa Cu: ọdịnaya fọdụrụ ekwe ≤ 0.030

Titanium Ti: 0.04-0.10

Njirimara igwe nke 20CrMnTi igwe anaghị agba nchara oyi na-adọkpụ:

ike tensile σ b (MPa) ：≥1080(110)

ike ike σ s (MPa) ：≥835(85)

elongation δ 5 (％):≥10

Mbelata mpaghara ψ (％)：≥45

Mmetụta ike Akv (J): ≥ 55

Mmetụta ike ike α kv (J/cm2)：≥69(7)

Isi ike: ≤217HB

Nlere nha: nha oghere oghere bụ 15mm

Nkọwapụta ọgwụgwọ okpomọkụ na usoro metallographic nke 20CrMnTi oyi na-adọkpụ nchara enweghị nkebi:

Nkọwapụta ọgwụgwọ okpomọkụ: quenching: 880 ℃ maka oge mbụ, 870 ℃ maka oge nke abụọ, mmanụ jụrụ oyi;Temper 200 ℃, mmiri jụrụ oyi na ikuku jụrụ oyi.

20crmnti ígwè ọkpọkọ bụ ọkara hardenability ígwè, nke nwere ezigbo hardenability n'ihi multiple alloying nke Cr, Mn na Ti.Dayameta dị oke egwu nke nkwụsị mmanụ bụ ihe dịka 40mm;Mgbe carburizing na quenching, ọ nwere nnukwu iyi na-eguzogide na elu siri ike, karịsịa obere okpomọkụ mmetụta siri ike;Nchara ahụ nwere usoro carburizing dị mma, obere mkpụrụ osisi na-eto eto, nkwụsị kpọmkwem na obere nrụrụ.Enwere ike iji ígwè 20CrMnTi mee ihe iji mepụta akụkụ dị arọ nke nwere akụkụ na-erughị 30 ℃, ma nwee ike iguzogide oke ọsọ, ibu ọkara ma ọ bụ ibu dị arọ, mmetụta na esemokwu, dị ka gia, ogwe osisi, mgbanaka gia, mgbanaka obe, mgbanaka clutches. , ikpuru, wdg.

Ngwakọta kemịkalụ nke 20crmnti ígwè ọkpọkọ gụnyere carbon C, silicon Si, manganese Mn, sọlfọ S, phosphorus P na chromium Cr.20crmnti ígwè anwụrụ mmepụta usoro: carbon ígwè, imecha rolling, na-abụghị oxidation na-egbuke egbuke okpomọkụ ọgwụgwọ (NBK ala), nodestructive ule, ígwè anwụrụ n'ime mgbidi na-brush na pụrụ iche ngwá na-asa n'okpuru elu nsogbu, mgbochi nchara mmanụ na ígwè anwụrụ bụ. na-emeso mgbochi nchara, na mkpuchi na nsọtụ abụọ a na-emeso maka mgbochi uzuzu.20crmnti steel pipe atụmatụ: mgbidi dị n'ime na nke mpụga nke ọkpọkọ ígwè nwere oke nkenke na njedebe dị elu, ọkpọkọ ígwè ahụ enweghị oyi akwa oxide mgbe ọgwụgwọ okpomọkụ gasịrị, mgbidi dị n'ime ya nwere ịdị ọcha dị elu, ígwè ígwè na-agbagide elu, nkwụsị oyi adịghị deform, na mgbasawanye na flatting enweghị mgbape.

Shandong Haihui Steel Co., Ltd. na-emepụta ihe oyi akpọrepu nkenke ziri ezi na-egbuke egbuke enweghị enweghị nkebi ọkpọkọnke GB 10 #, GB20 #, GB35 #, GB45 #, 20Cr, 40Cr, 16Mn, 35CrMo, 20CrMoTi, Gcr15.