Ⅰ-Cr12MoV Cold Working Die Steel ni iki?
Icyuma gikonjesha cya Cr12MoV gikorwa na zhongao kiri mu cyiciro cy'icyuma gikonjesha cya micro deformation kidapfa kwangirika cyane, kirangwa no kudapfa kwangirika cyane, gukomera, guhinduka kwa micro, guhagarara neza k'ubushyuhe, imbaraga zo guhinda cyane, n'ibindi bintu. Ni icya kabiri nyuma y'icyuma cyihuta cyane kandi ni igikoresho cy'ingenzi mu gukanda, gufata ibintu bikonje, n'ibindi bikoresho. Icyuma gikonjesha cya Cr12MoV ni icyuma cya karuboni molybdenum ledeburite gifite karuboni nkeya ugereranyije n'icyuma cya Crl2. Molybdenum na vanadium byongerwaho kugira ngo binoze imikorere ishyushye, gukomera kw'ingaruka no gukwirakwiza karuboni mu byuma. Icyuma gikonjesha cya Cr12MoV gifite karuboni nkeya ugereranyije n'icyuma gikonjesha cya Cr12. Kongeramo ibintu bishya bya alloy byongera imiterere ya karuboni idasaza. Byongeye kandi, molybdenum na molybdenum bishobora kugabanya gutandukanya karuboni no kunoza gukomera. Vanadium na vanadium bishobora gutunganya ibinyampeke no kongera ubukana, Kubwibyo, icyuma cya Cr12MoV cya zhongao gifite ubukana bwinshi, gifite igice kiri munsi ya mm 400 gishobora kuzimwa burundu, kandi gishobora gukomeza gukomera no kudashira neza kuri 300-400 ℃. Byongeye kandi, icyuma cya Cr12MoV cya zhongao gifite ubukana bwiza kurusha ibindi bikoresho byo ku isoko rusange, kandi amahirwe yo guhinduka k'ingano mu gihe cyo kuzimya aragabanuka cyane. Kubwibyo, ubukana bwacyo bwinshi n'imiterere myiza ya mekanike bituma icyuma cya Jinbaicheng cya Cr12MoV kirushaho kuba cyiza mu gukora ibumba zitandukanye zifite igice kinini, imiterere igoye, kandi zihanganira ingaruka zikomeye, ndetse n'ibikoresho bitandukanye byo gukanda mu gihe cy'akazi gakomeye, nko gukubita ibumba, gukata ibumba, gukata ibumba, nibindi.
Ⅱ-Ubuyobozi bwo gukoresha Cr12MoV Cold Working Die Steel
① Cr12MoV ishobora gukoreshwa mu gukora imiterere igoye y’udupira duto, duto, n’udupira two gucukura udupira dufite ubugari bwa mm 3. Ni byiza kugira ubukana bwa 58 ~ 62HRC mu gukora udupira duto na 60 ~ 64HRC mu gukora udupira duto.
② Kugira ngo hakorwe ibumba rito n'iry'inyuma risaba imbaraga nyinshi zo kwangirika, ni byiza kugira ubukana bwa 60 ~ 62HRC mu gihe cyo gukora ibumba na 62 ~ 64HRC mu gihe cyo gukora ibumba rito.
③ Kugira ngo hakorwe ibishishwa bito bidashobora kwangirika mu bishishwa bikurura cyane, ni byiza kugira ubukana bwa 62 ~ 64HRC.
④ Ikoreshwa mu gukora ibishushanyo mbonera, ibishushanyo mbonera, n'ibice byometseho bisaba imbaraga nyinshi zo kwangirika no kuba imiterere igoye mu ibishushanyo mbonera. Ni byiza kugira ubukana bwa 60-64HRC mu gukora ibishushanyo mbonera, na 60-64HRC mu gukora ibishushanyo mbonera.
⑤ Kugira ngo hakorwe ibyuma bikonje n'ibikomoka ku biti bya aluminiyumu, ni byiza kugira ubukana bwa 60-62HRC mu gihe cyo gukora ibyuma, na 62-64HRC mu gihe cyo gukora ibyuma.
⑥ Ni byiza gukoresha ubukana bwa 62 ~ 64HRC ku bibumbano binini n'ibinini bikoreshwa mu gukora ibibumbano bikonjesha by'umuringa.
⑦ Ibyuma binini n'ibinini bikoreshwa mu byuma bikonjesha bikoreshwa mu gukurura bikozwe mu cyuma, ni byiza ko bifite ubukana bwa 62 ~ 64HRC.
⑧ Ibyuma bya plaque bifite uburemere bwa 0.65% ~ 0.80% bikoreshwa mu gukora karuboni bifite ubukana bwa 37 ~ 42HRC, bitanga ubuzima bugera ku mizingo 150000.
⑨ Ibyuma bya plaque bifite uburemere buri hagati ya 0.65% na 0.80% bikoreshwa mu gukora karuboni bifite ubukana bwa 37-42HRC, kandi iyo bikozwe mu buryo bw'inyongera, igihe cyabyo gishobora kugera ku nshuro 400000.
Ⅲ-Gutunganya Cr12MoV Cold Working Die Steel:
Ibisobanuro byo koroshya ifumbire ikoreshwa mu gukonjesha: Rinda kandi ushyushye ifumbire ukoresheje uduce tw'icyuma ku bushyuhe bwa 760-780 ℃ mu gihe cy'amasaha 10, hamwe no gukonjesha mu itanura no gukomera kwa 196HBW. Gutunganya ifumbire ikoreshwa mu gukonjesha bishobora kugerwaho neza.
Ibisobanuro ku bijyanye no gushyushya icyuma gisanzwe cya isothermal: 850-870 ℃ × amasaha 3-4, gikonjeshejwe mu itanura kugeza kuri 740-760 ℃ × amasaha 4-5 yo gusukura icyuma cya isothermal, hamwe n'ubukonje bw'umwuka ≤ 241HBW, urwego rwa karubide ya eutectic ≤ 3, ubushyuhe bwiza bwa isothermal 740-76o ℃, n'igihe ≥ amasaha 4-5.
Ibisobanuro byo gukonjesha spheroidizing: (860 ± 10) ℃ × amasaha 2-4, gukonjesha itanura ku gipimo cyo gukonjesha cya 30 ℃ / isaha, (740 ± 10) ° C x amasaha 4-6, gukonjesha buhoro buhoro kugeza kuri 500-600 ℃ hamwe n'itanura, gukonjesha umwuka nyuma yo gusohora, ubukana bwa 207-255HBW.
Ibipimo rusange byo kuzimya no gushyushya: ubushyuhe bwo kuzimya 1000-1050 ℃, kuzimya cyangwa kuzimya amavuta, ubukana 260HRC, ubushyuhe bwo kuzimya 160-180, igihe cyo kuzimya amasaha 2, cyangwa ubushyuhe bwo kuzimya 325-375 ° C, kuzimya inshuro 2-3.
Ubushyuhe bwo kuzimya bugabanuka kandi bugasubira inyuma: 950 ℃ -1040 ℃, ubushyuhe bwo kuzimya bugera kuri 200 ℃, ubushyuhe bwa kabiri.
Ubushyuhe bwo kuzimya cyane no kugarura umusaruro mwinshi: 1050-1100 ℃, ubushyuhe bwo kuzimya ni hafi 520 ℃, ubushyuhe bwa kabiri. Uburyo bwo kuzimya cyane bukoreshwa mu kuzimya cyane no kongera gukoresha ibikoresho byo kongera gukoresha ibintu butuma ibintu bikomera, ariko ibinyampeke birakura.
Uburyo bwo kuvura indwara ziterwa n’ubushyuhe: Cr12MoV icyuma gikorerwa uburyo bwo kuvura indwara ziterwa n’ubushyuhe, bishobora gutuma karubide zitatanye cyane zituruka kuri martensite yazimye, hanyuma izi karubide zishobora guhinduka karubide nyuma yo gushyushya ubushyuhe buke bwa 200 ℃. Martensite idafite uburyo bwo kuvura indwara ziterwa n’ubushyuhe itera gusa karubide nke mu duce tumwe na tumwe tw’aho nyuma yo gushya mu bushyuhe buke.
Zhongao ikoresha uburyo bwo kuvura ubushyuhe bw'ibinyabutabire mu bushyuhe buke, bukomeza ubukana bwinshi no kudashira kw'icyuma cya Cr12MoV. Uduce dutatu dukoreshwa cyane mu kuvura ubushyuhe bw'ibinyabutabire mu bushyuhe buke, ari two nitriding ya ion, nitrocarburizing ya gaze, na salt bath sulfur cyanide co nitriding, tugira ingaruka zikomeye ku bushyuhe no gufatana, aho salt bath sulfur cyanide co nitriding ari yo nziza cyane.
Igihe cyo gukoresha ibikoresho bya Cr12MoV bya Zhongao mu byuma bita "stainless steel", nyuma yo kuvurwa na "gas nitrocarburization", kigera ku bice birenga 30000, birenga inshuro zirenga 10 ugereranyije n'ibimera bisa nabyo bivurwa hakoreshejwe uburyo busanzwe bwo kuzimya no gushyushya.
Igihe cyo kohereza: Gicurasi-23-2024