Mmiri mmiri ozuzo (PH) igwe anaghị agba nchara n'ozuzu nwere ihe na-eme ka ọ bụrụ ọla kọpa, lead, molybdenum, na titanium nke na-etolite oge siri ike. Ihe ndị a alloying nwere nnukwu solubility na austenite, mana ntakịrị na martensite. Ya mere, ọgwụgwọ okpomọkụ nke mmiri ozuzo hardening martensitic igwe anaghị agba nchara kwesịrị ibu ụzọ bụrụ ọgwụgwọ ngwọta siri ike iji gbazee n'ụzọ zuru ezu na-agbaze agba agba agba agbagoro na steeti nkedo. Mgbe ahụ, a na-eme ọgwụgwọ siri ike nke mmiri ozuzo iji mee ka usoro nke ike siri ike nke abụọ, si otú ahụ na-eme ka ike nke igwe anaghị agba nchara na-eme ka ọ nwee ezigbo nguzogide corrosion. Tụkwasị na nke ahụ, ọgwụgwọ ngwọta ga-emeziwanye arụmọrụ ịkpụ nkemmiri ozuzo siri ike igwe anaghị agba nchara.
Àmụmà nke ọgwụgwọ okpomọkụ nke mmiri ozuzo na-eme ka ihe nkedo igwe anaghị agba nchara:
- 1) Tupu ọgwụgwọ ọgwụgwọ, ọ chọrọ ka a preheated ka 650 ℃, na mgbe ahụ ngwa ngwa kpụ ọkụ n'ọnụ na a predetermined okpomọkụ. Enwere ike ịkwanye ihe nkedo n'ime ọkụ na oke okpomọkụ.
- 2) The siri ike ngwọta okpomọkụ bụ n'ozuzu 1020-1060 ° C, na-ejide oge na-agbakọ dị ka kwekọrọ ekwekọ mmụba nke 1 hour maka ọ bụla 25 mm abawanye na mgbidi ọkpụrụkpụ. Maka ihe nkedo nwere ọdịdị dị mgbagwoju anya, enwere ike ibelata okpomọkụ ngwọta siri ike ruo ihe dịka 930 Celsius.
- 3) Iji kpochapụ ihe na-adịghị ahụkebe nke usoro dendritic na nkewa nke akụkụ na nnukwu ihe nkedo ígwè, ọ kacha mma ịme ọgwụgwọ homogenization okpomọkụ dị elu tupu ngwọta siri ike.
- 4) Enwere ike ịhọrọ okpomọkụ nke ọgwụgwọ ịka nká nke ọma dịka ihe ndị a chọrọ nke ike, ike na ike nke nkedo.
- 5) Iji melite n'ibu Njirimara nke mmiri ozuzo hardening igwe anaghị agba nchara, mgbe ọgwụgwọ ngwọta, ikuku jụrụ na 700-810 ° C maka 2 awa, na mgbe ahụ ikuku jụrụ na 620 ° C maka 4 awa. Nke a nwere ike imeziwanye arụmọrụ ịkpụ nke nkedo.
Oge nzipu: Sep-04-2021