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1. (WO2018103090) HIGH-NITROGEN STAINLESS BEARING STEEL HEAT TREATMENT PROCESS
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Pub. No.: WO/2018/103090 International Application No.: PCT/CN2016/109281
Publication Date: 14.06.2018 International Filing Date: 09.12.2016
IPC:
C21D 1/26 (2006.01) ,C21D 11/00 (2006.01) ,C23C 4/14 (2016.01)
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
1
General methods or devices for heat treatment, e.g. annealing, hardening, quenching, tempering
26
Methods of annealing
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
11
Process control or regulation for heat treatments
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
4
Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
12
characterised by the method of spraying
14
for covering elongated material
Applicants:
张康 ZHANG, Kang [CN/CN]; CN
叶永 YE, Yong [CN/CN]; CN
Inventors:
张康 ZHANG, Kang; CN
叶永 YE, Yong; CN
Agent:
青岛致嘉知识产权代理事务所(普通合伙) QINGDAO ZHIJIA INTELLECTUAL PROPERTY AGENCY FIRM (GENERAL PARTNERSHIP); 中国山东省青岛 李沧区万年泉路237号中海国际社区1501室单虎 Shanhu Room 1501 Zhonghaiguoji Square No. 237, Wannianquan Qingdao, Shandong 266000, CN
Priority Data:
Title (EN) HIGH-NITROGEN STAINLESS BEARING STEEL HEAT TREATMENT PROCESS
(FR) PROCÉDÉ DE TRAITEMENT THERMIQUE D'ACIER INOXYDABLE POUR COUSSINETS À HAUTE TENEUR EN AZOTE
(ZH) 一种高氮不锈轴承钢热处理工艺
Abstract:
(EN) A high-nitrogen stainless bearing steel heat treatment process. The process comprises the following steps: S1: selecting a high-nitrogen steel liquid as a base raw material; S2: providing multiple sand pools, the temperatures of the sand pools being different; S3: annealing; S4: selecting sand pools of temperatures respectively between 350-400°C, 250-300°C, 150-200°C, 50-100°C, and 15-40°C; S5: preparing a surface coating agent; S6: preheating; S7: using a flame gun to burn a blank produced in step S6; S8: selecting an air cooler and immediately cooling with the air cooler the blank produced in step S7; and S9: air cooling the cooled blank of step S8. The process reduces resource wastage to a certain extent and increases the wear resistance, contact fatigue, and resilience of a bearing blank.
(FR) L'invention concerne un procédé de traitement thermique d'acier inoxydable pour coussinets à haute teneur en azote. Le procédé comprend les étapes suivantes : S1 : la sélection d'un liquide d'acier à haute teneur en azote en tant que matière première de base; S2 : la fourniture de multiples bassins de sable, les températures des bassins de sable étant différentes; S3 : le recuit; S4 : la sélection de bassins de sable de températures respectivement comprises entre 350 et 400 °C, 250 et 300 °C, 150 et 200 °C, 50 et 100 °C, et 15 et 40 °C; S5 : la préparation d'un agent de revêtement de surface; S6 : le préchauffage; S7 : l'utilisation d'un pistolet-chalumeau pour brûler une ébauche produite à l'étape S6; S8 : la sélection d'un refroidisseur à air et le refroidissement immédiat au moyen du refroidisseur à air de l'ébauche produite à l'étape S7; et S9 : le refroidissement à l'air de l'ébauche refroidie de l'étape S8. Le procédé réduit, dans une certaine mesure, le gaspillage de ressources et augmente la résistance à l'usure, la fatigue par contact et la résilience d'une ébauche de coussinet.
(ZH) 一种高氮不锈轴承钢热处理工艺,该工艺包括以下步骤:S1:选取高氮钢液体作为基础原料;S2:设置多个沙池,沙池的温度各不相同;S3:退火;S4:选取温度分别在350-400℃、250-300℃、150-200℃、50-100℃、15-40℃之间的沙池;S5:制取表面涂抹剂;S6:预热;S7:使用火焰枪对S6步骤制得的原件进行灼烧;S8:选用冷风机,将S7步骤制得的原件立即通过冷风机冷却;S9:把S8步骤中的冷却原件进行空冷。该工艺在一定程度上降低了资源浪费,并且能够提高轴承原件的耐磨性、接触疲劳性以及韧性。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)