1,Kedu ụdị nchara
1. 40Cr, 42CrMo, wdg: Na-ezo aka na alloy structural steel, nke nwere oke okpomọkụ dị elu na ike ọgwụgwụ ike ọgwụgwụ, a na-ejikarị emepụta ihe ndị dị mkpa nke nnukwu ngwá ọrụ.Ụdị ọkọlọtọ ọkọlọtọ mba ụwa ASTM A3 bụ ọkọlọtọ American nkịtị carbon structural steel, nke nwere akụrụngwa arụ ọrụ na-agafeghị oke ma na-ejikarị eme ihe n'ichepụta ihe nhazi nkịtị.
2. Ụdị isi nke ígwè na-agụnye carbon structural ígwè pụrụ iche, carbon ngwá ọrụ ígwè, carbon spring steel, alloy spring steel, alloy structural steel, ball bearing steel, alloy tool steel, elu alloy tool steel, elu-speed tool steel, igwe anaghị agba nchara). , ígwè na-eguzogide okpomọkụ, nakwa dị ka elu okpomọkụ alloys, nkenke alloys, na electrothermal alloys.
3. E uru: 26 maka ụdị izugbe na ndị nwere a, 44 maka ndị nwere b, na 24 maka ndị nwere c.Nkeji ogologo ọ bụla dị na millimeters.Akụkụ ogologo ígwè na-ezo aka na akụkụ kachasị mkpa nke ụdị ígwè dị iche iche, gụnyere ogologo, obosara, ịdị elu, dayameta, radius, dayameta dị n'ime, dayameta mpụta, na ọkpụrụkpụ mgbidi.
4. A na-ekekarị ígwè n'ụdị anọ: profaịlụ, efere, ihe ụlọ, na ọkpọkọ.Ihe nke profaịlụ na efere bụ nkewa nkewa dị ka Q235B, Q345B, na Q355B, ebe isi ihe eji ewu ụlọ bụ HRB400E, na ihe nke ọkpọkọ bụkwa Q235B.
Ụdị profaịlụ na-agụnye ígwè dị ka H, ígwè nke I, ígwè ọwa, na nchara nchara.
5. Nchara pụrụ iche: na-ezo aka na nchara pụrụ iche a na-eji na mpaghara ụlọ ọrụ dị iche iche, dị ka igwe ụgbọ ala, igwe igwe ugbo, igwe ụgbọ elu, igwe nrụpụta igwe, igwe ọkụ ọkụ ọkụ, igwe eletriki, waya ịgbado ọkụ, wdg N'otu oge ahụ, ihe ndị ahụ. nkọwa nke ngwaahịa ọkpọkọ welded dị iche iche dịkwa iche, a na-egosipụtakarị na dayameta ọnụ.
2. Olee otú ịmata ọdịiche nke ụdị na ụdị nke ígwè
1. Dị ka ihe dị iche iche na-eji na ihe a chọrọ, ígwè nwere ike kewaa n'ime ụdị na ụdị dị iche iche.Carbon ígwè nkewa site kemịkalụ mejupụtara: ígwè nwere a carbon ọdịnaya n'etiti 008% na 11%, tumadi eji maka n'ichepụta n'ibu akụkụ, wiil, egwu, wdg.
2. Nkọwa nkewa nke usoro nnochite ọkwa nchara na China: 1. Carbon structural steel bụ nke Q + nọmba + àgwà ọkwa akara + deoxygenation usoro akara.A na-edobe ọkwa nchara ya na "Q", na-anọchi anya ebe mkpụrụ nke ígwè ahụ, na ọnụọgụ ndị na-esonụ na-anọchite anya uru mkpụrụ, na MPa.Dịka ọmụmaatụ, Q235 na-anọchite anya ebe mkpụrụ (σ s) 23 MPa carbon structural steel.
3. A na-ekewa ígwè n'ụdị anọ: profaịlụ, efere, ihe ụlọ, na ọkpọkọ.N'ime ha, profaịlụ na efere nwere ike nkewa n'ime Q235B, Q345B, na Q355B, ebe ihe ụlọ bụ HRB400E na ọkpọkọ bụ Q235B.Enwere ike kewaa ụdị profaịlụ n'ụdị ígwè H, ígwè nke I, na ihe ndị ọzọ.
4. Nchara akpara;Nkedo ígwè;Igwe ọkụ na-ekpo ọkụ;Igwe oyi adọtara.Steel nkewapụtara site na nhazi metallographic na steeti annealed: ① hypoeutectoid ígwè (ferrite+pearlite);② Eutectoid ígwè (pearlite);③ Igwe mmiri ozuzo sitere na nchara eutectic (pearlite + cementite);④ Lainitic ígwè (pearlite + cementite).
5. Nchara kpụrụ oyi: ụdị nchara nke ejiri oyi na-ehulata igwe ma ọ bụ ibe nchara.Profaịlụ dị elu: elu mma gburugburu nchara, square ígwè, flat steel, hexagonal steel, wdg b.Ọla mpempe akwụkwọ;Efere ígwè dị mkpa: efere ígwè nwere ọkpụrụkpụ nke milimita 4 ma ọ bụ ihe na-erughị ya.Efere nchara dị ọkara na nnukwu: efere igwe nwere oke karịa milimita 4.
6. Ọnụọgụ ahụ na-anọchi anya uru mkpụrụ mkpụrụ, dịka ọmụmaatụ, Q275 na-anọchite anya ebe mkpụrụ nke 275Mpa.Ọ bụrụ na akara mkpụrụedemede A, B, C, na D mgbe ọkwa ọkwa gasịrị, ọ na-egosi na ọkwa dị mma nke ígwè ahụ dị iche, na ọnụọgụ S na P na-ebelata n'usoro, ebe ịdị mma nke ígwè na-abawanye n'usoro.
Oge nzipu: Feb-27-2024