Force analysis ịwụ nha nha na-arụ ọrụ ihu na gwupụtara ihe kọntaktị, na a zuru ezu gwupụtara usoro dị iche iche na-arụ ọrụ nkebi nke dị iche iche na-arụ ọrụ ọnọdụ nke ya dị iche iche nchegbu situation.When n'ọnụ eze mbụ emetụ ihe n'elu ihe n'elu, na ịwụ eze n'ọnụ na-emetụta ike n'ihi na ya ngwa ngwa speed.If mkpụrụ ike nke ịwụ ezé bụ ala, plastic deformation ga-eme na tip.With mmụba nke igwu ala omimi, eze na-eme ka nchegbu nke ịwụ ihe na-eme n'ihi na ịwụ ezé ga-eme. ije, na-arụpụta nnọọ nnukwu nti extrusion nrụgide n'elu, si otú na-emepụta nnukwu esemokwu ike n'etiti ịwụ nha nha na-arụ ọrụ ihu na material.If ihe bụ ike nkume, ihe, wdg, esemokwu ga-abụ nnọọ nnukwu.The n'ihi nke ugboro ugboro omume nke usoro a na-arụpụta dị iche iche degrees nke elu eyi na ịwụ nha nha na-arụ ọrụ ihu, na mgbe ahụ na-emepụta furrow na ukwuu omimi.Ịwụ eze n'ezie ihe mejupụtara nke ọma na-emetụta ndụ ịwụ ogologo. na-ere ezé ịwụ M na-ejikwa ezé ịwụ ya, mmetụta dị mma! Mmetụta dị mma na ihu na-arụ ọrụ n'ihu bụ ihe doro anya karịa nke na azụ na-arụ ọrụ ihu, na ihu na-arụ ọrụ n'ihu na-eyi nke ọma. Enwere ike ikpebi na nrụgide dị mma na ike esemokwu bụ isi ihe na-emepụta ihe na-emepụta ihe maka ọdịda nke ezé ịwụ, nke na-ekere òkè dị ukwuu na usoro ọdịda.
Usoro analysis: were abụọ samples si n'ihu na azụ na-arụ ọrụ ihu n'otu n'otu, na-egweri ha ewepụghị maka hardness test.Ọ chọpụtara na ekweghị ekwe nke otu sample dị nnọọ iche, na mmalite ikpe bụ na ihe na-adịghị uniform.The samples bụ ala, polished na corroded, na a chọpụtara na e nwere ndị doro anya ókè na onye ọ bụla sample, ma ókèala, ndị na-agba ya gburugburu na-ele ihe anya partFrom dị iche iche. gbara ọchịchịrị, na-egosi na ibe ahụ nwere ike ịbụ nkedo etinyere. N'elu elu, akụkụ ahụ a na-emechi emechi kwesịkwara ịbụ ihe mgbochi na-adịghị. A na-eme nyocha nke ike siri ike n'akụkụ abụọ nke ókèala ahụ na hrs-150 dijitalụ ngosi rockwell hardness tester na mhv-2000 dijitalụ ngosi microhardness tester, na a chọtara ihe dị iche iche. Ihe mejupụtara ihe mejupụtara alloy bụ isi (nkebi uka,%) bụ 0.38c, 0.91cr, 0.83mn na 0.92si. Ihe eji arụ ọrụ nke ihe igwe na-adabere na nhazi ha na usoro ọgwụgwọ okpomọkụ. Ngwakọta yiri ya na ihe dị iche iche nke siri ike na-egosi na a na-etinye ezé ịwụ ahụ na-enweghị ọgwụgwọ okpomọkụ mgbe nkedo gasịrị. Nleba anya anụ ahụ na-esote na-akwado nke a.
Òtù analysis nke metallographic chọpụtara gosiri na mkpụrụ bụ tumadi nwa ezi lamellar Ọdịdị, set mpempe anụ ahụ mejupụtara abụọ akụkụ, fritter ọcha ngọngọ na nwa, na-acha ọcha ngọngọ pụọ cross ngalaba ebe nzukọ ọzọ (na n'ihu microhardness ule na-egosi na nzukọ maka ferrite na-acha ọcha patches, nwa ezi lamellar Ọdịdị nke troostite ma ọ bụ troostite na pearlite na pearlite hybririte n'ime ụlọ ọrụ na-acha ọcha na-eme ka a na-emepụta ihe na-emepụta ihe na-eme ka ọ bụrụ ihe na-emepụta ihe na-eme ka ọ bụrụ ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-eme ka ọ bụrụ ihe dị iche iche. nke ụfọdụ frasi mgbanwe zones na okpomọkụ emetụta mpaghara nke ịgbado ọkụ. N'okpuru omume nke metal mmiri mmiri okpomọkụ n'oge nkedo, a na mpaghara bụ na austenite na ferrite abụọ-phase mpaghara, ebe ferrite na-n'ụzọ zuru ezu toro na ya microstructure nọgidere na-enwe na ụlọ okpomọkụ. N'ihi na ịwụ eze mgbidi bụ dịtụ mkpa na ntinye ngọngọ olu bụ nnukwu, akụkụ nke etiti nke ntinye nke nnukwu ihe mgbochi ferrite bụ ala dị ala, nke dị n'etiti etiti na-enweghị nnukwu ihe mgbochi kpụrụ bụ obere okpomọkụ.
The wear test on mld-10 wear test machines na-egosi na nkwụsị nke matrix na ntinye dị mma karịa nke mechiri 45 ígwè n'okpuru ọnọdụ nke obere mmetụta na-eyi test. chiller.N'ime usoro nkedo, a na-anụcha ọka matriks iji mee ka ike ya dịkwuo mma ma na-eyi nguzogide. N'ihi mmetụta nke nkedo okpomọkụ, usoro nke ntinye dị ka nke a na-emetụta mpaghara ịgbado ọkụ ọkụ.
Oge nzipu: Eprel 15-2019