EP 3408423 A1 20181205 - METHOD FOR HEAT-TREATING A COMPONENT WHICH CONSISTS OF A METAL MATERIAL AND COMPRISES AT LEAST ONE SURFACE SECTION COATED WITH A GLAZE OR ENAMEL COATING
Title (en)
METHOD FOR HEAT-TREATING A COMPONENT WHICH CONSISTS OF A METAL MATERIAL AND COMPRISES AT LEAST ONE SURFACE SECTION COATED WITH A GLAZE OR ENAMEL COATING
Title (de)
VERFAHREN ZUM WÄRMEBEHANDELN EINES AUS EINEM METALLWERKSTOFF BESTEHENDEN BAUTEILS MIT MINDESTENS EINEM MIT EINER GLASUR- ODER EMAILLE-BESCHICHTUNG BESCHICHTETEN FLÄCHENABSCHNITT
Title (fr)
PROCÉDÉ DE TRAITEMENT THERMIQUE D'UN COMPOSANT CONSTITUÉ D'UNE MATIÈRE MÉTALLIQE ET POURVU D'UNE PARTIE DE SURFACE REVÊTUE D'UN REVÊTEMENT ÉMAILLÉ OU VERNISSÉ
Publication
Application
Priority
- DE 102016103866 A 20160303
- IB 2017000192 W 20170302
Abstract (en)
[origin: WO2017149380A1] The invention relates to a method for heat-treating a component (1) which consists of a metal alloy and in which or on which at least one surface section (7) is coated with a glaze or enamel coating (9). The component (1) is heated to a heating temperature which at least equals a minimum quenching temperature, and the component (1) is quenched starting from a temperature which at least equals the minimum quenching temperature in order to produce a higher-strength microstructure in the component (1). By using the method according to the invention, the pertinent components (1) can be heat-treated such that maximum strengths of the component (1) are reached and the glaze or enamel coating (9) is reliably prevented from chipping. For this purpose, the glaze or enamel coating (9) is pre-cooled to a pre-cooling temperature at least on the free surface (9') of the coating prior to the quenching process, said pre-cooling temperature maximally corresponding to the temperature at which the glaze or enamel coating (9) begins to soften, and the cooling rate at which the glaze or enamel coating (9) is cooled is lower than the target cooling rate during the quenching process.
IPC 8 full level
C22F 1/00 (2006.01); C22F 1/04 (2006.01); C23D 5/00 (2006.01)
CPC (source: EP KR RU US)
C22C 21/04 (2013.01 - EP US); C22F 1/00 (2013.01 - EP RU US); C22F 1/04 (2013.01 - EP KR RU US); C22F 1/043 (2013.01 - EP US); C23D 1/00 (2013.01 - KR); C23D 7/00 (2013.01 - US); C23D 13/00 (2013.01 - KR RU US); C23D 1/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2017149380A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102016103866 B3 20170518; BR 112018016765 A2 20181226; CN 108779540 A 20181109; CN 108779540 B 20211008; EP 3408423 A1 20181205; EP 3408423 B1 20210519; JP 2019507830 A 20190322; KR 102190321 B1 20201214; KR 20180121952 A 20181109; RU 2018134476 A 20200403; RU 2018134476 A3 20200403; RU 2724268 C2 20200622; US 2019085466 A1 20190321; WO 2017149380 A1 20170908; ZA 201805487 B 20190626
DOCDB simple family (application)
DE 102016103866 A 20160303; BR 112018016765 A 20170302; CN 201780014578 A 20170302; EP 17716981 A 20170302; IB 2017000192 W 20170302; JP 2018545905 A 20170302; KR 20187028528 A 20170302; RU 2018134476 A 20170302; US 201716081546 A 20170302; ZA 201805487 A 20180816