20Cr alloy enweghị nkebi ígwè ọkpọkọbụ otu n'ime ọkpọkọ nchara nchara na-emepụta ihe kachasị ukwuu na mba m ma nwee ọtụtụ ihe eji eme ihe.Chinese GB ọkọlọtọ ígwè nọmba 20Cr;Japanese JIS ọkọlọtọ ígwè nọmba SCr22;German DIN ọkọlọtọ ígwè nọmba 20Cr4;British BS ọkọlọtọ ígwè nọmba 590M17;French NF ọkọlọtọ ígwè nọmba 18C3;American AISI/SASTM ọkọlọtọ ígwè nọmba 5120;International Standards Organisation ISO ọkọlọtọ ígwè No. 20Cr4.
Njirimara
20Cr alloy ígwè ọkpọkọnwere dịtụ mma hardenability, ọkara ike na ike.Ike ike nke mmanụ quenching ruo ọkara martensitic hardness bụ Φ20-Φ23mm.Mgbe carburizing na quenching elu ọgwụgwọ ike ike, ezi agịga-dị ka tempered martensite ga-enweta n'elu nke ebu na ike nke 58-62HRC;A ga-enweta ihe owuwu martensite dị ala na etiti nwere ike nke 35-40HRC.Matrix ahụ nwere ike dị elu na ike siri ike, ma nwee ike izute ihe ndị chọrọ ịrụ ọrụ nke ike siri ike, ike dị elu, ịdị elu dị elu na nguzogide corrosion kwesịrị ekwesị nke ụdị ọrụ oyi.Normalizing nwere ike ịkwalite spheroidization nke ihe owuwu ahụ, mee ka nnukwu proeutectoid ferrite dịkwuo mma, ma melite arụmọrụ nke oghere.
Ojiji
20Cr igwe anaghị agba ncharaA na-ejikarị emepụta akụkụ carburized (mmanụ quenching) nke nwere ike dị elu chọrọ, uwe elu, akụkụ nke dị n'okpuru 30mm, ma ọ bụ ihe mgbagwoju anya na ibu dị ala, dị ka: ngwá ọrụ gearbox gears, gear shafts, Cams, worms, piston pins. , njigide nkịrịka, wdg;maka akụkụ ndị nwere obere nrụrụ ọgwụgwọ okpomọkụ na nkwụsi ike dị elu, a ga-eme ka nkwụsị elu dị elu na-eme ka ọ bụrụ carburization, dị ka ngwo, ogwe osisi.20Cr ọkpọkọ enweghị nkebienwere ike iji ya mee ihe na ọnọdụ ọkụ na-ekpo ọkụ na-emepụta akụkụ ndị na-arụ ọrụ na oke ọsọ ọsọ ma na-eguzogide ibu mmetụta na-agafeghị oke.Enwere ike iji ya dị ka obere carbon martensitic quenching steel iji nwekwuo ike mkpụrụ na ike tensile nke ígwè ahụ.
Oge nzipu: Dec-19-2023