Abstract

The invention relates to an immersion heater (100) configured to be brought into contact with a material to be heated (90), in particular a molten non-ferrous metal, the immersion heater comprising: - a sheath (120) defining a first compartment (150) that is at least partially filled with electrically insulating powder (130), the sheath being configured to be brought into contact with the material to be heated; - a wall (140) arranged inside the first compartment (150) and defining at least one second compartment (145), this second compartment being at least partially filled with an inert material; - a plurality of heating elements (115, 116) arranged in the electrically insulating ceramic powder (130) between the sheath (120) and the wall (140).

IPC Classes  ?

• B22D 1/00 - Treatment of fused masses in the ladle or the supply runners before casting
• B22D 11/11 - Treating the molten metal
• B22D 41/015 - Heating means with external heating, i.e. the heat source not being a part of the ladle
• F27D 11/02 - Ohmic resistance heating
• F27D 99/00 - Subject matter not provided for in other groups of this subclass
• H05B 3/82 - Fixedly-mounted immersion heaters

Abstract

The invention relates to a method for melting non-ferrous metal by means of at least one electric immersion heater, wherein: - at least one electric immersion heater is brought into contact or into close proximity with non-ferrous metal in the solid state placed inside a vessel, - during a so-called priming step, a so-called initial electrical power corresponding to a fraction of the nominal power of the electric immersion heater is supplied to the electric immersion heater and - during a so-called melting step, the electrical power supplied to the electric immersion heater is increased progressively or in steps so that the non-ferrous metal present in the vessel changes from a solid state to a liquid state without significant input from heat sources other than the at least one electric immersion heater. The invention also relates to a melting device for implementing the method and to a production unit comprising such a device.

IPC Classes  ?

• C22B 9/16 - Remelting metals
• C22B 15/00 - Obtaining copper
• C22B 19/30 - Obtaining zinc or zinc oxide from metallic residues or scraps
• C22B 21/00 - Obtaining aluminium
• C22B 25/06 - Obtaining tin from scrap, especially tin scrap
• C22B 26/22 - Obtaining magnesium
• F27D 11/02 - Ohmic resistance heating
• B22D 41/01 - Heating means
• H05B 3/78 - Heating arrangements specially adapted for immersion heating

Abstract

Cooling system for a casting machine (40), in particular for the directional cooling of permanent molds in an injection molding machine, said system comprising: a plurality of cooling fingers (1) in contact with a mold (42) of said molding machine, a cooling machine (30) capable of alternately injecting into said cooling fingers a heat transfer fluid and a pressurized gas in order to remove said heat transfer fluid from said cooling finger, characterized in that said cooling system comprises a plurality of elements (101-108) referred to as flow measuring elements, each flow measuring element being capable of measuring a parameter representative of the flow rate of heat transfer fluid injected into a respective cooling finger.

IPC Classes  ?

• B29C 33/04 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
• B29C 45/73 - Heating or cooling of the mould

Abstract

Disclosed is a cooling finger (1) for controlling the local temperature of a part during the molding thereof by introducing a melted material in a permanent mold, said cooling finger comprising an elongate body (2) having an outer peripheral wall that is to penetrate a wall of the mold, and also comprising a longitudinal end that is to come into contact with the melted material or be in the immediate proximity of the melted material, the body comprising at least one duct (50) for a heat transfer fluid, characterized in that the body (2) further comprises at least one blind hole (60) which is different from the duct and is to accommodate temperature measuring means.

IPC Classes  ?

• B22C 9/06 - Permanent moulds for shaped castings
• B22D 17/22 - DiesDie platesDie supportsCooling equipment for diesAccessories for loosening and ejecting castings from dies
• B29C 45/73 - Heating or cooling of the mould
• B22D 17/32 - Controlling equipment

Goods & Services

Cooling machines; foundry machines; component of cooling machines and foundry machines; apparatus for metal machining; air or liquid distribution machines for cooling of molds; air and water pumps; injection molding machines for metals or plastics; injection presses for metals or plastics. Scientific, weighing, measuring, signaling, checking (inspection) apparatus and instruments; apparatus and instruments for checking the temperature of metal molds; apparatus for recording, transmission or reproduction of sound or images; data processing equipment; computers; software for controlling machines for mold cooling. Apparatus for steam generating, cooling, water distribution; apparatus and machines for water filtering and purifying; air-purifying apparatus and machines; water-conditioning installations.

Goods & Services

Foundry machines. Crucibles, furnaces for laboratory experiments. Ovens and furnaces (other than for experimental purposes), dosing furnaces, melting furnaces, immersion furnaces, heat-regulating and reheating apparatus, immersion heaters.

Goods & Services

Induction ovens and furnaces other than for experimental purposes, dosing furnaces, melting furnaces, immersion furnaces, heat-regulating and reheating apparatus in the nature of heating installations, immersion heaters

Abstract

The invention relates to a heating device (1) for a liquid metal bath (2), said device (1) capable of being moved relative to a vat (3) containing the liquid metal (2) and comprising at least one high flux immersion heater (4, 14) for heating the liquid metal (2). The device is characterized in that said immersion heater (4, 14) is rigidly joined on one end thereof (6, 7) to a connecting post (18, 28, 38, 48, 58, 68, 78, 88, 98) partially immersed in the liquid metal bath (2), said immersion heater (4, 14) being totally immersed in the bath (2).

IPC Classes  ?

• B22D 41/015 - Heating means with external heating, i.e. the heat source not being a part of the ladle
• F27D 99/00 - Subject matter not provided for in other groups of this subclass
• H05B 3/03 - Electrodes
• H05B 3/82 - Fixedly-mounted immersion heaters