Gịnị bụ teknuzu egosi maka carburizing na quenching akụkụ?

Carburizing na quenching na-etolite akwa martensite nwere nnukwu carbon dị n’elu akụkụ ahụ, nke nwere ike siri ike, ọdịnaya carbide dị elu na nguzogide dị elu. Isi bụ ihe owuwu martensite dị ala, yabụ nrụgide nrụgide elu dị ukwuu. Isi ike zuru oke dị elu. Àgwà ndị a na-eme ka carburizing na quenching ọtụtụ ebe na-eji gia na akụkụ ndị ọzọ na-achọ elu eyi iguzogide, ike ike ọgwụgwụ, na elu kọntaktị ike ọgwụgwụ ike. Induction hardening nwere àgwà nke ikpo ọkụ ngwa ngwa na ngwa ngwa jụrụ oyi, nke na-abawanye ụba nke ihe onwunwe. Mgbe ọ na-enweta ike siri ike dị elu, ọ na-enweta index siri ike dị elu, si otú a na-emeziwanye arụmọrụ nke akụkụ ahụ.

1. Abrasion eguzogide

Carburized na quenched akụkụ nwere nnukwu iyi na-eguzogide n’ihi na elu hardness na carbides n’elu. Induction hardening nwere ike nweta isi ike dị elu n’okpuru ọdịnaya carbon dị ala, yana nguzogide iyi na-emetụtakwa microstructure ya.

A na-eme 20CrMnTiH3 carburizing quenching na 45 steel induction quenching ka ọ bụrụ ụdị ejiji ọkọlọtọ, yana ike nke 62 ~ 62.5HRC, nwalere na igwe nnwale M-200, na akụkụ ndị ahụ na-emebi T10. Mgbe oge nde 1.6 gachara, ihe nlele nke carburized tụfuru 4.0 mg na ntinye emenyụ emenyụ 2.1 mg. Kedu usoro na-eme ka ihe nlere anya siri ike induction nwee nguzogide iyi dị elu? Ọ bara uru ịmụ.

2. Ike

A na-ekwenyekarị na ike na-ejikọta na ike siri ike, na otu ike ahụ nwere ike nweta otu ike ahụ. Maka akụkụ ụfọdụ, olee paramita ndị ọzọ metụtara ya? Anyị nwalere ọkọlọtọ tensile ụdị dumbbell mere nke 20CrMnTiH3 carburizing na quenching na 45 ígwè, 40CrH, 40MnBH induction quenching. Dayameta akụkụ dị irè nke ihe atụ ahụ bụ 20mm, na ike ndị a tụrụ atụ bụ 819MPa, 1184MPa, 1364MPa, Na 1369MPa, ike nke ọtụtụ ihe atụ carbon ígwè na-eme ka ọ bụrụ ihe nkwụsịtụ dị elu karịa nke akụkụ carburized.

A na-atụnyere nsonaazụ nke usoro abụọ ahụ. N’elu nke carburized na quenched sample bụ elu-carbon martensite, na carburized oyi akwa bụ 1.25mm, ike siri ike bụ 62-63HRC, na isi bụ ala-carbon martensite, na ike bụ 32HRC. Elu nke induction siri ike sample bụ ọkara-carbon martensite, omimi nke oyi akwa siri ike bụ 3.6mm, isi ike bụ 62HRC, na isi bụ sorbite na-ewe iwe, isi ike bụ 26HRC. Enwere ike ịchọta na enwere nnukwu ọdịiche dị na omimi nke elu oyi akwa siri ike nwetara site na usoro ọgwụgwọ abụọ ahụ, na induction hardening nwere ike nweta akwa oyi akwa siri ike, si otú ahụ nweta ike dị ukwuu. Ya mere, mgbe anyị na-ekwurịta nke usoro iwusi ike ka mma, anyị agaghị enyocha ya naanị site na nlele micro, kamakwa tụlee ya site na nnukwu echiche.

3. Ike ọgwụgwụ

Mgbe carburizing na induction hardening, n’elu nke akụkụ na-arụsi ọrụ ike nke ọma, na a ibu ihe fọdụrụ mkpakọ nrụgide na-etolite, na ha abụọ nwere elu ike ike ọgwụgwụ.

Ahọpụtara akụkụ ngwo ahụ nwere modulus nke 2.5 maka nyocha, ma jiri 20CrMnTiH3 menyụọ ya na omimi carburizing nke 1.2mm; Ejiri 45 steel na 42CrMo mee ka obi sie ike na mgbọrọgwụ eze na-emenyụ omimi nke 2.0mm. Isi ike bụ 61 ~ 63HRC, na ezé na-ala mgbe ọgwụgwọ okpomọkụ gasịrị. Nyochaa igwe na-anwale ike ọgwụgwụ dị ka usoro ntinye ego gosipụtara na eserese 1. Na-ehulata ike ọgwụgwụ nke etiti kacha nrụgide nke ihe atọ dị iche iche na ezé gia na-ekpo ọkụ bụ 18.50kN, 20.30kN na 28.88kN, n’otu n’otu. Ike ike ọgwụgwụ nke 42CrMo induction hardened gears bụ 56% dị elu karịa nke 20CrMnTiH3 carburizing na quenching, nke nwere nnukwu uru. Iji nyochaa usoro ya, ọ dị mkpa ịmalite site na nhazi oyi akwa siri ike, ọkwa nrụgide nrụgide elu, nhazi obi na isi ike.

4. Kpọtụrụ ike ọgwụgwụ

N’ihi na gia akụkụ, kọntaktị ike ọgwụgwụ ọdịda nke eze n’elu bụkwa isi ọdịda mode. Ngwa ndị na-arụ ọrụ ọkụ nwere obere ihe achọrọ maka ike ọgwụgwụ kọntaktị, yana ma induction hardening nwere ike dochie carburizing na hardening na ngwa ọrụ dị arọ akọwapụtara, ndenye aha a bụ ọdịnaya a ga-enyocharịrị. Nnyocha anyị na mpaghara a ezughị oke.

5. Nrụrụ emenyụ

Usoro carburizing nwere okpomọkụ dị elu, ogologo oge na nnukwu nrụrụ. Usoro nchikota nke na-esote ga-eji ike kachasị elu na nrụgide nrụgide kachasị elu mee ka elu ahụ dị nro, na-ebute mbelata ike nke akụkụ ahụ. Carburizing na quenching nke gia na-esiwanye na-eji pịa quenching technology, nzube ya bụ ibelata quenching deformation. Nrụrụ nke induction hardening dị ntakịrị, na n’ihi oke nke oyi akwa mechiri emechi, mmetụta nke igweri na omimi nke siri ike dị ntakịrị.