US20230250500A1 - Device and Method for Water Spray Quenching - Google Patents

Device and Method for Water Spray Quenching Download PDF

Info

Publication number
US20230250500A1
US20230250500A1 US18/004,699 US202118004699A US2023250500A1 US 20230250500 A1 US20230250500 A1 US 20230250500A1 US 202118004699 A US202118004699 A US 202118004699A US 2023250500 A1 US2023250500 A1 US 2023250500A1
Authority
US
United States
Prior art keywords
atomizer
spray mist
water
spray
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/004,699
Other languages
English (en)
Inventor
Volker Heuer
Christof Ziegler
Robin Viel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALD Vacuum Technologies GmbH
Original Assignee
ALD Vacuum Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ALD Vacuum Technologies GmbH filed Critical ALD Vacuum Technologies GmbH
Assigned to ALD VACUUM TECHNOLOGIES GMBH reassignment ALD VACUUM TECHNOLOGIES GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZIEGLER, CHRISTOF, VIEL, Robin, HEUER, VOLKER
Publication of US20230250500A1 publication Critical patent/US20230250500A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments
    • C21D11/005—Process control or regulation for heat treatments for cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like

Definitions

  • the present invention relates to an apparatus and to a method for the quenching of metallic workpieces after a thermochemical treatment, such as carburizing or carbonitriding, and comprises at least one atomizer designed and set up for the atomization of water in air or nitrogen, and a quench chamber fluidically connected to the atomizer.
  • a thermochemical treatment such as carburizing or carbonitriding
  • thermochemically treated workpieces are quenched in a bath of water, aqueous polymer solution or oil, or in a gas stream at a pressure of 5 to 20 bar.
  • Cooling baths of oil or aqueous polymer solution pollute the environment to a considerable degree.
  • an insulating steam layer forms, which initially slows the cooling and collapses anisotropically, which causes nonuniform cooling, case hardening depth and stresses in the workpiece surface.
  • gas quenching achieves relatively uniform cooling.
  • plant complexity for gas quenching is high, and there is an upper limit to the magnitude of the cooling rate
  • the at least one atomizer and the apparatus are designed and set up to generate a spray mist having a water content of 2.5% by volume to 40% by volume and a Sauter diameter of 20 to 2000 ⁇ m and to convey a spray mist flow through the charge volume V 0 of 0.05 m 3 /s to 25 m 3 /s or to recirculate the spray mist in the charge volume V 0 at a spray mist volume flow rate of 0.05 to 25 m 3 /s.
  • the present invention overcomes problems that have to date been a barrier to the practical use of water spray quenching.
  • the spray mist is generated with the aid of an atomizer and directed or passed through the charge volume V 0 or recirculated therein in a controlled manner.
  • the flow through the charge volume V 0 or spray mist recirculation in the charge volume V 0 is largely decoupled here from the atomization. This decoupling enables a flow of spray mist through the charge volume V 0 or spray mist recirculation in the charge volume V 0 which is controllable within a wide parameter range, combined with spatially homogeneous control of the cooling rate.
  • charge volume refers to a compact spatial region through which fluidic flow is possible in the quench chamber, in which one or more workpieces mounted on one or more charge carriers may be disposed. Accordingly, the term “charge volume” is not based on a physical feature per se, but instead refers more to a geometric configuration of a quench chamber that bounds the charge volume.
  • the method of the invention is conducted with a level mass balance. This means that the mass flows of gas and water fed in on the inlet side or to the one or more atomizers and those removed at an outlet of the quench chamber are equal.
  • mass flow or mass throughput through the quench chamber or between an inlet and an outlet of the quench chamber is referred to or specified as “spray mist throughput” with the unit m 3 /s. For given proportions by volume of gas and water—apart from slight temperature-dependent variances—the mass throughput of water and gas is fixed by the “spray mist throughput”.
  • the term “spray mist flow rate” relates to the charge volume.
  • the “spray mist flow rate” through the charge volume may be several times the “spray mist throughput” based on one inlet or outlet of the quench chamber.
  • the ratio or quotient of “spray mist flow rate” to “spray mist throughput” is also referred to as “recirculation number”.
  • the term “spray mist turnover” or “spray mist turnover in the charge volume V 0 ” is also used.
  • spray mist volume flow rate used in the present invention relates to the construction and electrical design of a recirculation drive, of one or more ventilators or of one or more fans to respectively
  • the recirculation drive, the at least one ventilator or the at least one fan functions as flow drive for the spray mist.
  • the recirculation drive is connected via two pipe conduits to the quench chamber.
  • one or more ventilators or fans intended for spray mist recirculation are preferably disposed on a wall of the quench chamber or within the quench chamber.
  • atomizer means an assembly comprising one or more atomizer nozzles.
  • an “atomizer” may comprise a register having up to 60 atomizer nozzles arranged in a matrix.
  • the term “inlet” refers to part of the apparatus of the invention through which water and air or nitrogen are supplied to the quench chamber and a recirculator optionally fluidically connected to the quench chamber.
  • the inlet may comprise one or more fluid conduits or one or more atomizers.
  • outlet refers to part of the apparatus of the invention through which spray mist is removed from the quench chamber and a recirculator optionally fluidically connected to the quench chamber.
  • the “inlet” and “outlet” may each be fluidically connected or coupled to the quench chamber or optionally to the recirculator.
  • the properties of the water spray mist generated are determined with the aid of a test method based on rapid digital image processing.
  • Measurement systems suitable for this purpose are supplied by companies including LaVision (https://www.lavision.de/) and Sympatec (https://www.sympatec.com/).
  • Sauter diameter DMS https://de.wikipedia.org/wiki/Sauter preparedmesser
  • D droplet diameter (DIN ISO 9276-2:2018-09).
  • FIG. 1 . . . a schematic diagram of a quench apparatus
  • FIG. 2 . . . an atomizer having multiple atomizer nozzles and workpieces disposed beneath;
  • FIG. 3 . . . two atomizers disposed above and below workpieces
  • FIG. 4 . . . an apparatus having two nozzle chambers
  • FIG. 5 a , 5 b a nozzle plate having multiple spray nozzles
  • FIG. 6 . . . an apparatus with recirculator
  • FIG. 7 . . . temperature progression of a workpiece on quenching in a first working example.
  • FIG. 1 shows a schematic diagram of an inventive apparatus 1 for water spray quenching, having a quench chamber 2 and an atomizer 30 . Disposed within the quench chamber 2 are one or more charge carriers 10 with a multitude of workpieces 11 mounted thereon within a charge volume 5 or V 0 .
  • a spray mist 300 consisting of water and air or water and nitrogen is generated. As indicated by the spray mist flow arrows 310 , the spray mist 300 flows through the charge volume 5 /V 0 with the workpieces 11 disposed therein.
  • the workpieces 11 are disposed on the charge carriers 11 such that normals (normal vectors) of their proportionally largest surface areas are aligned essentially parallel to a vertical reference axis 20 .
  • the flow through the charge volume 5 /V 0 is brought about in various ways, as described hereinafter with reference to FIGS. 2 to 6 .
  • All embodiments of the inventive apparatus 1 are designed and set up to pass a spray mist 300 through the charge volume 5 /V 0 , said spray mist 300 being characterized by the following parameters:
  • the atomizer 30 is connected via a first supply conduit (not shown in FIG. 1 ) to a pressurized water vessel, and via a second supply conduit (not shown in FIG. 1 ) to an air- or nitrogen-filled pressurized gas vessel.
  • the pressurized water and pressurized gas vessels (not shown in FIG. 1 ) are each designed for a pressure of 1 to 20 bar.
  • Disposed in the first and second supply conduits are control valves with which the volume flow rates (1/min) of water and gas that flow to the atomizer 30 from the water and gas pressure vessel respectively are controlled.
  • the atomizer 30 is additionally equipped with one or more atomizer nozzles (not shown in FIG. 1 ).
  • the atomizer nozzles such as one-phase nozzle for water, one-phase nozzle for gas, externally mixing two-phase nozzle, internally mixing two-phase nozzle (gas on the inside, water on the outside), internally mixing two-phase nozzle (water on the inside, gas on the outside), Venturi nozzles with a main gas flow and secondary water flow, Venturi nozzles with a main water flow and secondary gas flow, orifice nozzles, spiral nozzles, nozzles with and without swirl inserts, and rotary nozzles.
  • the atomizer 30 is designed and set up to assure rapid and uniform flow of spray mist 300 around the workpieces 11 .
  • the spray mist 300 heats up as it flows around the hot workpieces 11 disposed in the charge volume 5 /V 0 and, as indicated by the spray mist flow arrows 320 , is removed from the quench chamber 2 .
  • the apparatus 1 comprises a ventilator 6 or fan 6 .
  • the ventilator 6 or fan 6 assists the leading of the spray mist 300 out of the quench chamber 2 , and optionally accelerates the flow through the charge volume 5 /V 0 .
  • FIG. 2 shows a perspective detail view of an apparatus of the invention for water spray quenching having atomizers comprising one or more atomizer nozzles 31 and a multitude of workpieces 31 disposed on a charge carrier 10 .
  • the atomizer nozzles 31 are arranged in the quench chamber or charge volume of the apparatus in such a way that their longitudinal axes (or center axes or rotational axes) each independently form an angle of 135 to 180 degrees, 150 to 180 degrees or 160 to 180 degrees with a vertical reference axis 20 ′, or of 0 to 45 degrees, 0 to 30 degrees or, respectively, 0 to 20 degrees with an axis pointing in the opposite direction.
  • a center axis of the spray mist cone 300 generated by each atomizer nozzle 31 is aligned essentially at right angles to a proportionally large surface of each of the workpieces 11 .
  • the atomizer nozzles 31 are disposed essentially in a two-dimensional hexagonal pattern or a two-dimensional pattern corresponding to a tightest ball packing, in order to achieve maximum uniformity of spray mist distribution in a cross-sectional area of the charge volume at right angles to the reference axis 20 ′.
  • d denotes a length of 10 to 50 cm.
  • FIG. 3 shows a perspective detail view of a further apparatus of the invention for water spray quenching with a first and second atomizer 31 U and 31 L, each of which respectively comprises a multitude of atomizer nozzles 31 U and 31 L.
  • the atomizer nozzles 31 U of the first atomizer 30 U are each independently aligned such that their longitudinal axes form an angle of 135 to 180 degrees, 150 to 180 degrees or 160 to 180 degrees with a vertical reference axis 20 ′.
  • the atomizer nozzles 31 L of the second atomizer 30 L are each independently aligned such that their longitudinal axes form an angle of 0 to 45 degrees, 0 to 30 degrees or, respectively, 0 to 20 degrees with the vertical reference axis 20 ′.
  • a center axis of the spray mist cone 300 generated by each atomizer nozzle 31 U and 31 L is aligned essentially at right angles to a proportionally large surface of each of the workpieces 11 .
  • the atomizer nozzles 31 U and 31 L are each independently disposed essentially in a two-dimensional hexagonal pattern or a two-dimensional pattern corresponding to a tightest ball packing, in order to achieve maximum uniformity of spray mist distribution in a cross-sectional area of the charge volume at right angles to the reference axis 20 ′.
  • a regular spatial arrangement of the workpieces relative to the spray nozzles is not absolutely necessary in accordance with the invention.
  • FIG. 4 shows a schematic side view of a further inventive apparatus 1 for water spray quenching with a first and second atomizer ( 30 A, 30 B), each fluidically connected to a first and second nozzle chamber ( 40 A, 40 B).
  • the first and second nozzle chambers 40 A and 40 B are respectively disposed above and below a charge carrier 11 with metallic workpieces 11 mounted thereon, for example spur gears.
  • Each of the nozzle chambers ( 40 A, 40 B) comprises an outlet having 6 to 10 000 spray nozzles ( 41 A, 41 B) each having a cross-sectional area of 0.25 ⁇ mm 2 to 25 ⁇ mm 2 .
  • a longitudinal axis of each spray nozzle ( 41 A, 41 B) is aligned essentially parallel to a vertical reference axis 20 or at right angles to a surface of the workpiece 11 .
  • the first and second atomizers ( 30 A, 30 B) are each connected via a first supply conduit to a pressurized water vessel and via a second supply conduit to an air- or nitrogen-filled pressurized gas vessel.
  • the pressurized water and pressurized gas vessels (not shown in FIG. 4 ) are each designed for a pressure of 1 to 20 bar.
  • Control valves 32 and 33 respectively are disposed in the first and second supply conduits. By means of the control valves 32 and 33 , the volume flow rates (1/min) of water and gas that flow to the first and second atomizers ( 30 A, 30 B) from the water and gas pressure vessels respectively are controlled.
  • the first and second atomizers are each equipped with an atomizer nozzle 31 .
  • various concepts known in the prior art are envisaged for the configuration and design of the atomizer nozzle 31 , such as one-phase nozzle for water, one-phase nozzle for gas, externally mixing two-phase nozzle, internally mixing two-phase nozzle (gas on the inside, water on the outside), internally mixing two-phase nozzle (water on the inside, gas on the outside), Venturi nozzles with a main gas flow and secondary water flow, Venturi nozzles with a main water flow and secondary gas flow, orifice nozzles, spiral nozzles, nozzles with and without swirl inserts, and rotary nozzles.
  • the atomizers ( 30 A, 30 B) each generate, in the nozzle chambers ( 40 A, 40 B) connected thereto, a spray mist 300 which exits through the spray nozzles ( 41 A, 41 B) and flows over the workpieces 11 .
  • the spray nozzles ( 41 A, 41 B) have a cross-sectional area of 0.25 ⁇ mm 2 to 25 ⁇ mm 2 and preferably take the form of simple orifice nozzles.
  • the configuration and dimensions of the spray nozzles ( 41 A, 41 B) and the density thereof, i.e. the number of spray nozzles ( 41 A, 41 B) per unit area, are chosen such that uniform contact of the workpieces 11 with spray mist is assured.
  • the nozzle chambers ( 40 A, 40 B) each comprise an outlet or a nozzle plate having two or three mutually superposed perforated plates, wherein a second and optionally a third perforated plate are movable relative to a first perforated plate.
  • FIGS. 5 a and 5 b show partial top views of such a nozzle plate with three perforated plates, each of which has a multitude of circular holes of the same diameter. The relative arrangement of the holes is the same in each of the three perforated plates, with the position of the centers of the holes corresponding to the lattice points of a hexagonally tightest ball packing in two dimensions. In the position shown in FIG.
  • all three perforated plates are aligned congruently to one another, such that the holes of the second and third perforated plates coincide with the holes of the first perforated plate.
  • a nozzle opening formed by three mutually superposed holes in each case has a maximum cross-sectional area.
  • the second and third perforated plates are moved relative to the first perforated plate, such that a nozzle opening formed by three mutually superposed holes in each case has a reduced cross-sectional area.
  • the nozzle plate illustrated in FIGS. 5 a and 5 b comprises a multitude of spray nozzles controllable in parallel, the mode of function of which is based on the principle of an iris.
  • FIG. 6 shows a further inventive apparatus 1 for water spray quenching with a quench chamber 2 and a recirculator 7 comprising a recirculation drive 72 .
  • the recirculator 7 is fluidically connected to the quench chamber 2 via two or more conduits.
  • the quench chamber 2 contains a charge volume 5 /V 0 in which there are disposed one or more charge carriers 10 with a multitude of workpieces 11 mounted thereon.
  • An inlet 71 comprises one or more atomizers 30 , by means of which a spray mist 300 consisting of water and air or water and nitrogen is generated.
  • the recirculator 7 and the recirculation drive 72 are designed and set up to bring about rapid flow of spray mist 300 through the charge volume 5 /V 0 .
  • the recirculation drive 72 takes the form of a ventilator or fan.
  • a portion of the spray mist 300 recirculated in the quench chamber 2 and the recirculator 7 is discharged via an outlet 73 .
  • the outlet 73 is fluidically connected to a water separator (not shown in FIG. 6 ).
  • 200 steel bolts of diameter 25 mm, length 150 mm and weight 0.56 kg apiece are disposed on a charge carrier in an area having a length and width of 50 cm each.
  • One of the steel bolts has an axial hole at an end face, in which a thermocouple connected to a high-temperature-resistant recorder (Fluke Datapaq® Furnace Tracker) is disposed.
  • the charge carrier is in the form of a grid of carbon fiber-reinforced carbon (CFRC) with a mesh opening of 45 mm ⁇ 45 mm and a land width of 15 mm.
  • the steel bolts disposed on the charge carrier are heated up in a vacuum furnace equipped with a lock and kept at a temperature of 980° C. over a period of 30 min.
  • the quench apparatus comprises an upper and lower nozzle register each having 36 spray nozzles, arranged analogously to the manner shown in FIG. 3 such that the outlets of the spray nozzles in an upper and lower horizontal plane are in a regular pattern within a square having a side length of 40 cm, with a lateral distance between every two adjacent spray nozzles of 8 cm and a vertical distance between the upper and lower horizontal planes of 30 cm.
  • the charge carrier is mounted on two rails such that the steel bolts are disposed virtually in the middle, i.e. at a distance of about 15 cm on each side between the upper lower horizontal planes.
  • each of the spray nozzles in the upper and lower registers is supplied with compressed air and water, respectively with a gauge pressure of 3 and 5 bar and flow rates of 5 m 3 /h and 4 l/min.
  • the temperature progression recorded with the thermocouple in the course of quenching is shown in FIG. 7 .
  • the steel bolt equipped with the thermocouple has cooled down from 920° C. to 100° C. within about 25 s.
  • thermocouple connected to a high-temperature-resistant recorder (Fluke Datapaq® Furnace Tracker) is disposed.
  • Each of the 5 charge carriers is in the form of a grid of carbon fiber-reinforced carbon (CFRC) with a mesh opening of 45 mm ⁇ 45 mm and a land width of 15 mm.
  • the gear equipped with the thermocouple is disposed in the middle on the third charge carrier, i.e.
  • the overall batch with the 45 gears is heated up in a vacuum furnace equipped with a lock and kept at a temperature of 980° C. over a period of 60 min. Subsequently, the overall batch is removed from the vacuum furnace via the lock and disposed in a quench chamber of a quench apparatus of the invention. The time taken for the transfer from the furnace chamber to the quench chamber is about 30 s.
  • the quench apparatus is equipped with a recirculator and configured in the manner described in FIG. 6 .
  • a water spray mist composed of 97.5% by volume of air and 2.5% by volume of water is generated and directed through the quench chamber, or recirculated in the quench apparatus, at a volume flow rate of 645 m 3 /min.
  • the temperature of the water spray mist at the atomizer nozzle is 18° C.
  • Water spray mist is removed with a temperature of 78° C. at a quench chamber outlet.
  • the volume flow rates of the water spray mist generated by the atomizer and that removed at the outlet are of equal size and are each 72 m 3 /min.
  • the gear disposed centrally in the overall batch is cooled down from 940° C. to 100° C. within about 43 s.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Nozzles (AREA)
US18/004,699 2020-07-07 2021-07-07 Device and Method for Water Spray Quenching Pending US20230250500A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020117873.5 2020-07-07
DE102020117873.5A DE102020117873A1 (de) 2020-07-07 2020-07-07 Vorrichtung für Wassersprüh-Abschreckung
PCT/EP2021/068849 WO2022008599A1 (de) 2020-07-07 2021-07-07 Vorrichtung und verfahren für wassersprüh-abschreckung

Publications (1)

Publication Number Publication Date
US20230250500A1 true US20230250500A1 (en) 2023-08-10

Family

ID=77358201

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/004,699 Pending US20230250500A1 (en) 2020-07-07 2021-07-07 Device and Method for Water Spray Quenching

Country Status (5)

Country Link
US (1) US20230250500A1 (de)
EP (1) EP4179122B1 (de)
DE (1) DE102020117873A1 (de)
MX (1) MX2023000442A (de)
WO (1) WO2022008599A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240106817A (ko) * 2022-12-29 2024-07-08 동우에이치에스티 주식회사 열처리용 냉각장치
KR20240106816A (ko) * 2022-12-29 2024-07-08 동우에이치에스티 주식회사 열처리용 냉각장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1336490A (en) 1970-12-28 1973-11-07 Nippon Kokan Kk Method and apparatus for quenching metal stocks
DE29713958U1 (de) 1997-08-05 1997-10-02 Ipsen International GmbH, 47533 Kleve Vorrichtung zum Abschrecken einer Charge metallischer Werkstücke
DE102007023089A1 (de) 2007-05-16 2008-02-21 Daimler Ag Verfahren zum Abschrecken eines erwärmten metallenen Objekts
WO2016044365A1 (en) * 2014-09-18 2016-03-24 Consolidated Engineering Company, Inc. System and method for quenching castings
DE102016110677B4 (de) 2016-06-09 2018-07-12 Ebner Industrieofenbau Gmbh Temperiervorrichtung für Bauteile
DE102017001210B4 (de) 2017-02-09 2019-05-16 Audi Ag Vorrichtung und Verfahren zur Abschreckkühlung, sowie Verfahren zur Herstellung eines lösungsgeglühten Aluminiumgussbauteils

Also Published As

Publication number Publication date
MX2023000442A (es) 2023-04-20
WO2022008599A1 (de) 2022-01-13
DE102020117873A1 (de) 2022-01-13
EP4179122B1 (de) 2024-10-23
EP4179122A1 (de) 2023-05-17

Similar Documents

Publication Publication Date Title
US20230250500A1 (en) Device and Method for Water Spray Quenching
KR101964174B1 (ko) 가스상 유체를 주입하는 장치를 구비한 프로세스 챔버
US11858210B2 (en) Managing powder mobility in binder jetting for additive manufacturing
EP2235338B2 (de) Düsenanordnung
JP2005506681A (ja) 気化装置
CA2715320A1 (en) Cooling system and cooling method of rolling steel
CN205443427U (zh) 一种氮化炉
KR100972420B1 (ko) 고온의 유리된 물질을 위한 공냉식 및 수냉식 운반 및 냉각 장치
CN206343436U (zh) 利用二氧化碳的清洗装置及利用此的干湿式复合清洗系统
JP6858991B2 (ja) 熱交換器、分離システム、及びエアロゾル形成システム
CN113660998A (zh) 用于生产漆包线的装置和方法
CN110270460A (zh) 钢结构喷涂系统
EP2919587B1 (de) Backofen mit einem dampferzeuger
CN109642304A (zh) 高温金属的冷却方法及熔融镀锌钢带的制造方法
CN203437031U (zh) 一种sncr脱硝双流体喷射装置
CN106755833A (zh) 一种喷淋淬火工艺研究装置及其使用方法
Marcos et al. Spray cooling at low system pressure
CN210607299U (zh) 一种降温装置及降温系统
WO2008017382A2 (de) Verfahren zum herstellen von bauteilen in einem mediumkreislauf, wie insbesondere eines wärmeübertragers und solche bauteile
US20120070579A1 (en) Method and apparatus for coating glass substrate
CN212109486U (zh) 一种氧气氛箱式烧结炉
Sliusenko et al. Water-air ejector with conical-cylindrical mixing chamber
CN218048543U (zh) 一种用于粉末喷涂的冷却装置
CN209210408U (zh) 一种尿素热解制氨器
CN110343995A (zh) 一种生成淬硬钢Cr12MoV塑料模具铣削加工表面防腐膜的装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: ALD VACUUM TECHNOLOGIES GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HEUER, VOLKER;ZIEGLER, CHRISTOF;VIEL, ROBIN;SIGNING DATES FROM 20221115 TO 20221122;REEL/FRAME:062313/0980

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION