A na-enweta nkedo nke nwere ike ihie site na ịwụsa ígwè a wụrụ awụ nke nwere ụfọdụ kemịkalụ n'ime oghere ọcha wee gwọọ ya site na mgbakasị ahụ. Eserese dị n'ime igwe nkedo a na-emegharị emegharị na-abụkarị nke na-efegharị efegharị na mgbe ụfọdụ obere pellets. Isi ihe owuwu matriks nke ígwè nkedo na-adịghị mma bụ ferrite na pearlite. Dị ka ọnọdụ ọgwụgwọ okpomọkụ dị iche iche si dị, ígwè nkedo nwere ike ịkewa nwere ike kewaa n'ime graphitized annealing malleable cast iron na decarburization annealing malleable cast iron.
Njirimara igwe ọkụ nkịtị nke igwe nkedo nwere ike ime ka ọ dị nso na nke nkedo nodular nwere otu matriks. N'okpuru ọnọdụ okpomọkụ dị ala, mmetụta siri ike na ịrụ ọrụ nkedo nke nkedo na-adịghị mma dị mma karịa nke nkedo nodular. A na-eji ihe nkedo a na-agbagharị agbagharị eme ihe na-ewu ụlọ, ụgbọ ala, traktọ, igwe ọrụ ugbo na mpaghara ndị ọzọ. A na-ejikarị ihe nkedo ígwè na-agbagharị agbagharị eme ihe maka nkedo njikọ ọkpọkọ, ihe ndị na-ewu ụlọ, elbows, tees, valve ozu, wrenches, jack shells, leaf spring supports, brackets, axle housings, engine connecting mkpara, rocker ogwe aka, wdg The okpomọkụ ọgwụgwọ nke malleable nkedo. ígwè tumadi gụnyere graphitization annealing na decarburization annealing.
Ngwongwo nke Ígwè nkedo a na-apụghị ịgbagha agbagha
1. Mechanical Njirimara
Oke nke ike mkpụrụ na ike nkwụsi ike nke nkedo a na-apụghị ịgbagha agbagha dị nso na nke nkedo igwe a na-egweri, mana ọ dị ihe dịka 60% ~ 80% dị elu karịa nke ígwè carbon. Ígwè nkedo a na-agbagharị agbagharị dị mma maka ịrụ ọrụ na okpomọkụ dị ala karịa ígwè nkedo egweri bọọlụ.
2. Usoro arụmọrụ
N'ihi na ọdịnaya nke carbon na silicon nke ígwè nkedo malleable dị ala, ogo eutectoid dị ntakịrị, na nkedo billet na-egbuke egbuke dị ka usoro metastable si dị, ọrụ nkedo nke ígwè nkedo na-adịghị mma adịghị mma, na nkedo na-adịkarị mfe nkedo ntụpọ dị otú ahụ. dị ka ọdịda ịwụsa, mbelata oghere, mbelata porosity, na mgbawa. Iji gbochie ntụpọ ndị a, ọ dị mkpa ka e mee ihe dị ka ịba ụba okpomọkụ, ndị na-agba ọsọ usoro, ịba ụba isi nrụgide dị elu, na-agbakwụnye ịrị elu, ịtinye ígwè jụrụ oyi, na imeziwanye ndakpọ nke ịkpụ ájá na isi ájá mgbe ị na-emepụta usoro nkedo.
3. Ịrụ ọrụ igwe
Ferritic malleable nkedo ígwè nwere obere ike siri ike, na ịrụ ọrụ ịkpụ ya dị mma karịa nkedo ígwè isi awọ na nchara na-enweghị isi. Ya mere, ígwè nkedo ferritic malleable bụ ihe nwere ọrụ nhazi kachasị mma n'etiti ígwè-carbon alloys. Ihe nkedo pelitic malleable nwere isi ike dị elu yana arụ ọrụ igbutu ka njọ.
4. Welding Performance
Igwe ihe nkedo nke nwere obi oji na nkedo nke nwere ike ime pearlite adịghị adabara maka ịgbado ọkụ, n'ihi na a ga-emepụta ọnụ ọcha na-agbaji agba na mpaghara ịgbado ọkụ. Ọnụ na-acha ọcha ga-agbawa n'okpuru nrụgide ịgbado ọkụ. Maka ihe nkedo nke na-ebu obere ntakiri, ịgbagọ, na ibu mmetụta, ma ọ bụ nke a na-ejikarị ebu mkpakọ na obere iyi, ọ bụrụ na achọrọ ịgbado ọkụ, nkedo ahụ kwesịrị ikpocha ọkụ tupu ịgbado ọkụ, na nchekwa ọkụ na ngwa ngwa dị jụụ ka achọrọ mgbe ịgbado ọkụ. Mgbe ọ dị mkpa, a na-achọgharị ọzọ iji kpochapụ cimentite na nrụgide gburugburu weld. Otú ọ dị, ihe nkedo na-acha ọcha bụ isi na-arụ ọrụ nke ọma, n'ihi ya, a na-akpọkwa ya ígwè nkedo nwere ike ịgbado ọkụ.
5. Nguzogide abrasion
Nkwụsị nkedo nke pearlite malleable nkedo dị mma karịa nke ígwè carbon nkịtị. Ya mere, pearlite malleable nkedo nkedo dị mma maka nkedo akụkụ nke nwere ụfọdụ ihe a chọrọ maka ike na iyi nguzogide. Site n'imenyụ ọgwụgwọ okpomọkụ, isi ike nke ihe nkedo ígwè nwere ike iru 60 HRC, na nguzogide iyi ya nwere ike ịdị ka nke ígwè dị ala. Otú ọ dị, ígwè nkedo ferritic malleable adịghị adabara akụkụ ndị na-adịghị eyi uwe.
6. Okpomọkụ Nguzogide
Okpomọkụ na-eguzogide nke ferritic malleable nkedo ígwè na pearlite malleable nkedo ígwè dị mma karịa nkedo isi awọ na carbon ígwè, na okpomọkụ na-eguzogide nke ferritic malleable nkedo ígwè dị mma karịa nke pearlite malleable nkedo ígwè.
7. Ujo absorption
N'ihi mmetụta nke graphite udi, igwe nkedo malleable nwere obere ujo absorption karịa nkedo isi awọ ma dị mma karịa ígwè nkedo ductile na nkedo ígwè. N'okpuru nrụgide dị ala, arụ ọrụ nkedo nke ferritic malleable nkedo bụ ihe dịka nke nkedo nke spheroidal milled, ma n'okpuru nrụgide dị elu, ịrụ ọrụ nkedo nke ferritic malleable nkedo dị ihe dị ka okpukpu atọ nke ígwè nkedo na okpukpu abụọ karịa nke ígwè. ígwè nkedo ductile.
Oge nzipu: Mar-04-2021