Ⅰ-Gịnị bụ Cr12MoV Cold Working Die Steel
The Cr12MoV oyi na-arụ ọrụ anwụ ígwè nke zhongao na-emepụta bụ nke ụdị nke elu-na-eguzogide micro deformation ngwá ọrụ ígwè, nke e ji elu eyi nguzogide, hardenability, micro deformation, elu thermal kwụsie ike, elu na-ehulata ike, na ndị ọzọ Njirimara.Ọ bụ nke abụọ na ígwè dị elu ma bụrụ ihe dị mkpa maka stampụ, isi oyi na ihe ndị ọzọ.Cr12MoV anwụ ígwè bụ carbon molybdenum ledeburite ígwè nwere obere carbon ọdịnaya karịa Crl2 ígwè.A na-agbakwunye molybdenum na vanadium iji melite arụmọrụ arụ ọrụ ọkụ, mmetụta siri ike na nkesa carbide nke ígwè.Cr12MoV anwụ ígwè nwere obere carbon ọdịnaya karịa Cr12 anwụ ígwè.Mgbakwunye nke ihe ọhụrụ alloy na-eme ka ihe na-adịghị mma nke carbide dị mma.Ọzọkwa, molybdenum na molybdenum nwere ike belata ikewa nke carbide ma melite ike.Vanadium na vanadium nwere ike nụchaa ọka ma na-abawanye ike, Ya mere, nchara zhongao's Cr12MoV nwere ike siri ike, nke nwere akụkụ nke dị n'okpuru 400mm nke nwere ike ịkwụsị kpamkpam, ma nwee ike ịnọgide na-enwe ike dị mma ma na-eyi nguzogide na 300-400 ℃.E wezụga nke ahụ, nchara zhongao's Cr12MoV na-akpụ akpụ nwere ịdị mma ka mma karịa ihe ndị ọzọ nwere otu ọkwa na ahịa izugbe, na ohere nke mgbanwe olu n'oge quenching na-ebelata nke ukwuu.Ya mere, ya elu eyi na-eguzogide na ezi keukwu n'ibu Njirimara na-eme ka Jinbaicheng's Cr12MoV ebu ígwè ọzọ dabara adaba n'ichepụta dị iche iche ebu na nnukwu cross-ngalaba, mgbagwoju udi, na-eguzogide nnukwu mmetụta, yana dị iche iche oyi stamping ngwaọrụ n'okpuru arọ ọrụ ọnọdụ, dị ka. ịkụ ọkpọ anwụ, mkpụcha anwụ anwụ, ịgbagharị anwụ, wdg Steel efere miri emi osise anwụ, okirikiri okirikiri, ọkọlọtọ ngwaọrụ na ihe eji atụ, eri rolling die, wdg.
Ⅱ-Nduzi ngwa nke Cr12MoV Cold Working Die Steel
① Cr12MoV nwere ike iji mee mgbagwoju shapes nke convex, concave, na fanye blocks maka punching ebu na ihe ọkpụrụkpụ>3mm.A na-atụ aro ka ịnwe ike nke 58 ~ 62HRC mgbe ị na-eme ka ọkpụkpụ convex na 60 ~ 64HRC mgbe ị na-eme ihe ọkpụkpụ.
② N'ihi na mmepụta nke ntụmadị na concave ebu nke na-achọ elu eyi iguzogide, ọ na-atụ aro ka a ike nke 60 ~ 62HRC mgbe na-eme ka ntụmadị na 62 ~ 64HRC mgbe na-eme ka concave ebu.
③ N'ihi na mmepụta nke eyi na-eguzogide concave ebu na miri ịbịaru ebu, ọ na-atụ aro ka nwere ike nke 62 ~ 64HRC.
④ A na-eji maka imepụta ihe ọkpụkpụ convex, concave ebu, na fanye ihe mgbochi na-achọ ihe mgbochi dị elu na ụdị mgbagwoju anya na-agbagọ.A na-atụ aro ka ị nwee isi ike nke 60-64HRC mgbe ị na-eme ọkpụkpụ convex, na 60-64HRC mgbe ị na-eme ihe ọkpụkpụ.
⑤ Maka mmepụta nke extrusion oyi na-anwụ anwụ ma na-anwụ anwụ maka akụkụ aluminom, a na-atụ aro ka ọ bụrụ ihe siri ike nke 60-62HRC mgbe ị na-eme ọnwụ, na 62-64HRC mgbe ị na-eme ka ọ dị ndụ.
⑥ Ọ na-atụ aro iji a hardness nke 62 ~ 64HRC maka convex na concave ebu eji eme ọla kọpa oyi extrusion ebu.
⑦ The convex na concave ebu na-eji ígwè oyi extrusion ebu na-atụ aro ka a ike nke 62 ~ 64HRC.
⑧ Mmiri ígwè efere na a uka nta nke 0.65% ~ 0.80% eji akpụ carbon nwere a hardness nke 37 ~ 42HRC, na-enye a ndụ nke ruo 150000 cycles.
⑨ Igwe mmiri nchara nke nwere akụkụ dị nta nke 0.65% ruo 0.80% eji eme carbon nwere ike nke 37-42HRC, yana ọgwụgwọ nitriding ọzọ, ndụ ọrụ ha nwere ike iru ugboro 400000.
Ⅲ-Nhazi nke Cr12MoV Cold Work Die Steel:
Nkọwapụta maka ịdị nro nke ebu extrusion oyi: Chebe ma kpoo ebu ahụ na ntinye ígwè na okpomọkụ nke 760-780 ℃ maka awa 10, yana ọkụ ọkụ na ike nke 196HBW.Oyi extrusion akpụ nwere ike nweta were were.
Nkọwa maka nkịtị isothermal spheroidizing annealing: 850-870 ℃ × 3-4 awa, mma n'ime ọkụ ruo 740-760 ℃ × 4-5 awa nke isothermal ọgwụgwọ, na ikuku jụrụ ike ≤ 241HBW, eutectic carbide ọkwa, ezigbo ọkwa 3. okpomọkụ 740-76o ℃, na oge ≥ 4-5 awa.
Nkọwapụta maka spheroidizing annealing: (860 ± 10) ℃ × 2-4 awa, ọkụ jụrụ na a jụrụ ọnụego nke 30 ℃ / hour, (740 ± 10) ° C x 4-6 awa, ji nwayọọ nwayọọ jụrụ na 500-600 ℃ na ọkụ, ikuku jụrụ mgbe a gbasasịrị, ike 207-255HBW.
General quenching na tempering nkọwa: quenching okpomọkụ 1000-1050 ℃, mmanụ quenching ma ọ bụ quenching, hardness 260HRC, tempering okpomọkụ 160-180, tempering oge 2 awa, ma ọ bụ tempering okpomọkụ 325-375 ° C, tempering 2-3 ugboro.
Low quenching na ala nloghachi quenching okpomọkụ: 950 ℃ -1040 ℃, tempering okpomọkụ bụ gburugburu 200 ℃, secondary tempering.
High quenching na elu laghachi quenching okpomọkụ: 1050-1100 ℃, tempering okpomọkụ bụ gburugburu 520 ℃, secondary tempering.Ụzọ siri ike nke abụọ a na-eji eme ka ọ dị elu na imegharị ihe dị elu na-eme ka ike sie ike, ma ọka ga-eto eto.
Ọgwụgwọ Cryogenic: Cr12MoV ígwè na-enweta ọgwụgwọ cryogenic, nke nwere ike ịkpalite ultrafine carbides gbasasịrị nke ukwuu site na quenched martensite, na mgbe ahụ, ndị a ultrafine carbides nwere ike ghọọ carbides mgbe 200 ℃ obere okpomọkụ tempering.Martensite na-enweghị ọgwụgwọ cryogenic na-ebuli obere carbide na mpaghara ụfọdụ mgbe ọkụ okirikiri dị ala.
zhongao na-anabata usoro ọgwụgwọ okpomọkụ kemịkalụ dị ala, nke na-edobe ike siri ike ma na-eyi nguzogide nke Cr12MoV ígwè.Ngwọta ọgwụgwọ kemịkalụ dị ala nke atọ a na-ejikarị, ya bụ ion nitriding, gas nitrocarburizing, na salt bath sulfur cyanide co nitriding, nwere mmetụta dị ịrịba ama nguzogide na nrapado, na nnu bath sulfur cyanide co nitriding bụ nke kacha mma.
Ndụ ọrụ nke ịbịaru anwụ maka arịa igwe anaghị agba nchara nke zhongao's Cr12MoV, mgbe ọgwụgwọ gas nitrocarburization gasịrị, ruru ihe karịrị 30000 iberibe, nke karịrị ugboro 10 karịa nke ụdị ebu ndị a na-emeso ya na mkpochapụ na iwe ọkụ.
Oge nzipu: Mee-23-2024