首页> 外国专利> SPRING OR TORSION MADE OF STEEL WIRE, PRODUCED BY COLD DEFORMATION; METHOD OF PRODUCING COLD-DEFORMED STEEL SPRING, APPLICATION OF STEEL WIRE FOR MANUFACTURING COLD-DEFORMED SPRINGS

SPRING OR TORSION MADE OF STEEL WIRE, PRODUCED BY COLD DEFORMATION; METHOD OF PRODUCING COLD-DEFORMED STEEL SPRING, APPLICATION OF STEEL WIRE FOR MANUFACTURING COLD-DEFORMED SPRINGS

机译：由冷变形产生的钢丝制成的弹簧或扭转;生产冷变形弹簧的方法，钢线在冷变形弹簧制造中的应用

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FIELD: instrument engineering.;SUBSTANCE: invention relates to a cold-deformed spring. Method for manufacturing spring (3') is described, which contains the following steps: a) preparation of steel wire (1), b) thermomechanical deformation (12) of steel wire (1) prepared in step a) at temperature, exceeding the minimum temperature of recrystallization of steel wire (1), while steel wire (1) has at least partially an austenitic structure, c) cooling the steel wire (1) deformed by the thermomechanical method at stage b), d) improving the steel wire, including: heating (17)steel wire cooled at stage c) (1) at least to the hardening temperature, which is equal to or higher than the temperature of the beginning of austenitization (I); quenching (18) steel wire (1) heated in step I at least to the quenching temperature, to the first cooling temperature, and the first cooling temperature lies below the minimum recrystallization temperature of steel wire (1) and forms at least partially martensitic structure (II); reheating steel wire (1), sharply cooled in stage II, to the first tempering temperature, which is lower than the temperature at which austenitization begins (III); cooling re-heated steel wire (1) in phase III to a second cooling temperature, the second cooling temperature being at least below the first tempering temperature (IV); e) cold deformation (20', 20") of steel wire (1) improved at stage d) at the cold deformation temperature, and the cold deformation temperature lies below the minimum recrystallization temperature of the steel wire; e) separation (21) of cold-deformed steel wire in step d), according to the invention, cooling of steel wire (1) in step c) is carried out to a temperature below the minimum recrystallization temperature, so that at least partially ferritic-pearlitic structure is formed in steel wire (1).;EFFECT: technical result – manufacturing a spring with high viscosity.;10 cl, 3 dwg

机译：弹簧技术领域本发明涉及一种冷变形弹簧。描述了一种用于制造弹簧（3'）的方法，该方法包括以下步骤：a）钢丝（1）的制备，b）步骤a）中制备的钢丝（1）在超过温度的温度下的热机械变形（12）。钢丝（1）的再结晶的最低温度，而钢丝（1）至少部分具有奥氏体结构; c）在步骤b）中冷却通过热机械方法变形的钢丝（1），d）改善钢丝，包括：（17）将在阶段c）（1）中冷却的钢丝加热到至少等于或高于奥氏体化开始（I）的温度的硬化温度;至少在步骤I中加热到淬火温度，第一冷却温度的淬火（18）钢丝（1），并且该第一冷却温度低于钢丝（1）的最小再结晶温度并形成至少部分马氏体结构（II）;将在阶段II中急剧冷却的钢丝（1）再加热到第一回火温度，该温度低于开始奥氏体化的温度（III）;在阶段III中将再加热的钢丝（1）冷却至第二冷却温度，该第二冷却温度至少低于第一回火温度（IV）; e）在冷变形温度下，在阶段d）改善的钢丝（1）的冷变形（20'，20“），并且冷变形温度低于钢丝的最低再结晶温度; e）分离（21）根据本发明，对步骤d）中的冷变形钢丝进行冷却，将步骤（c）中的钢丝（1）冷却至低于最小再结晶温度的温度，从而形成至少部分的铁素体-珠光体组织。效果：技术成果–制造高粘度弹簧。; 10 cl，3 dwg

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公开/公告号RU2682882C1

专利类型
公开/公告日2019-03-22

原文格式PDF
申请/专利权人 THYSSENKRUPP FEDERN UND STABILISATOREN GMBH;
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申请/专利号RU20170104703
发明设计人 LECHNER DIETER (DE);GROSS MARCEL (DE);GABOR HEINZ-GEORG (DE);ROLAND MARCO (DE);
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申请日2015-07-15
分类号C21D9/02;B21F35;
国家 RU
入库时间 2022-08-21 11:46:22

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