Class 266/120 - By immersing an article to be treated in bath of molten material, e.g., salt bath

Subclass of Class 266 - Metallurgical apparatus
Definition: Device wherein the contacting apparatus includes a tank
No. of patents: 36
Last issue date: 07/08/2008

Number	Title	Issue Date
7396502	Method of producing nano-sized Fe powder having polymer coated layer The present invention provides a method for producing nano-sized Fe powder having a polymer coated layer on a surface thereof, so as to prevent the nano-sized Fe powder from being oxidized under atmosphere. The method includes: gasifying an iron pentacarbonyl (Fe(CO...	07/08/2008
6630038	Processing apparatus for forming metallic material A processing apparatus forms a metallic material such as steel. The apparatus includes a heating tub, spray nozzles, a cooling tub, and a circulator. The heating tub heats the steel to equal to or higher than the modification point of the steel. The spray...	10/07/2003
6464927	Method and apparatus for in-line heat treatment of hot rolled stock Apparatus for the rolling and heat treatment of elongated metal product of relatively small cross section, such as rods and bars, is described in which the elements required for the conduct of a variety of heat treatments are arranged in in-line dispositi...	10/15/2002
6284062	Member for immersion in hot dip galvanizing bath and method for producing the same A member used in contact with a hot dip galvanizing bath, such as a sinker roll, a support roll or a bearing, is produced by nitriding stainless steel to form a nitride layer and a nitrogen-diffused layer on the surface thereof. The member used in contact...	09/04/2001
5798002	Method of and device for producing carbide and carbon solid solution containing surface layers In order to produce a carbon solid solution or carbide-containing surface layer on a substrate, the substrate is immersed into a cold bath of liquid active medium, and heated inside the liquid active medium by heating means immersed in the liquid active m...	08/25/1998
5544869	Apparatus for plating tubing and other shapes An apparatus and method for continuously applying a zinc plating to tubing is provided having a lower reservoir of molten zinc, an elongated and enclosed plating chamber having a plating trough formed in its upper surface, a pump for transferring molten z...	08/13/1996
5527018	Filter unit and apparatus for desludging salt baths In a filter unit (25) and apparatus for desludging salt baths (1), which is flooded at least partially by the salt bath and is in working association with the upper end of a riser tube (23), the bath fluid to be desludged being driven, by means of a compr...	06/18/1996
5492168	High convective heat transfer immersion heater/cooler A heat exchanger includes a long, thin-shelled heat transfer tube closed at one end and secured at the other end to a manifold collar which has an exhaust tube extending from the center thereof and a manifold housing extending from the collar side opposit...	02/20/1996
5326409	System for peripheral differential heat treatemnt to form dual-property workpiece A system for developing a metal workpiece in which the center and the periphery have different properties. The workpiece is processed to put it into a first metallurgical condition. Then, a portion of the periphery is dipped into a molten salt bath and th...	07/05/1994
5135781	Procedure for operating a hot metallizing furnace In the operation of a hot metallizing furnace for lengths of metal, in particular metal strip, in which the length of metal to be coated is passed from above through the upper zone of a smelt of a coating material located in a smelt container, the smelt c...	08/04/1992
4890820	Heating apparatus for a metallic strand A method for heating a metallic strand 16 such as a wire or strip comprises passing the strand 16 along a metallic tube 4 which is filled with molten metal 13, the tube wall being heated by a furnace chamber 3 through which the tube 4 extends....	01/02/1990
4844749	Reagent bath for and method of treating a workpiece surface A bath for treating a metallic workpiece so as to provide a surface finish thereupon includes a reagent adapted to react with the surface and an abrasive material. Relative agitational motion between the abrasive and the workpiece is provided and in this ...	07/04/1989
4818303	Method and apparatus for settling sludge A method and apparatus for improved settling and handling of sludge in a fused salt bath for treating materials is provided. The apparatus includes a tank divided into a work zone and a salt processing zone, with the salt processing zone having a salt rec...	04/04/1989
4738273	Apparatus for continuous cooling of elongated elements An assembly of gates is provided at each end of a vat. Two uprights mounted on a lock-chamber floor support respective brackets. Pivoted between the floor and the brackets are gate flaps, the pivot rods of which are fitted in holes in the floor and in the...	04/19/1988
4583720	Apparatus for the zone-annealing of a workpiece consisting of a high-temperature material An apparatus and a process for the zone-annealing of a workpiece (1) consisting of a high-temperature material, in which the workpiece (1) is hung on a suspension device (2) actuated via a roller (3) driven by a drive motor (4) and is provided with a plat...	04/22/1986
4491303	Loading method and installation for a metal alloy founding furnace to supply foundry molds To fast load a metal alloy casting furnace 1 at a high casting temperature to supply foundry molds at an industrial pace, a liquid portion of the overall load is first introduced deep inside the furnace with a device L comprising a telescopic channel 30-3...	01/01/1985
4487398	Salt bath quenching apparatus The quench severity of a molten salt bath is drammatically increased by adding substantial amounts of water to the bath while it is being vigorously agitated by two impellors submerged in the bath. One impellor causes an upward flow and the other a downwa...	12/11/1984
4455251	Aqueous solution of alkali metal compositions According to the present invention a saturated aqueous solution comprising at least one alkali metal hydroxide and at least one alkali metal nitrate is provided which can be spray added to a fused anhydrous bath which contains alkali metal materials....	06/19/1984
4391636	Method of and apparatus for the production of nodular (ductile) cast iron A process or method of and apparatus for the in-ladle treatment of molten base metal iron with a nodularizing agent (e.g., a magnesium bearing alloy) so as to produce substantially uniform spheriodal graphite in the iron. The process involves placing a de...	07/05/1983
4353531	Process and installation for the handling and heat treatment of cast iron or steel pipes and tubes Concave rails 17, upon which a pipe which is to be treated by at least partial immersion can be placed, are fixed in the bottom of a furnace 1 which contains a treatment bath M. In order to guarantee that the pipe is immersed over the whole of its cross s...	10/12/1982
4308056	Method and apparatus for introducing solid substances into liquid metals Solid substances are introduced into a bath of molten metal by pushing a hollow metal tube filled with the solid substance, through a tubular former that imparts a spiral shape to the carrier tube. The spiral rotates about a vertical axis as it descends i...	12/29/1981
4273591	Method and apparatus for prevention of clogging of exhaust systems A method and apparatus is disclosed for prevention of clogging of exhaust systems, especially the exhaust hoods and ducts above fused salt baths onto which salts splatter as they are being added by spraying from aqueous solutions. A fluid tight jacket sur...	06/16/1981
4235424	Air cooled electrode system for electrically heated molten bath furnaces An air cooled electrode system is employed with one or more electrically heated molten salt bath furnaces. Each furnace comprises a wall enclosing a chamber which contains the molten salt bath. Electrodes are laid or located in the wall to extend through ...	11/25/1980
4222554	Electric salt bath furnace In the art electric heat treat furnaces have a frame and an open top housing of refractory brick therein including a plurality of inner walls defining a chamber throughout its height adapted to receive a molten bath such as a salt bath into which metal pi...	09/16/1980
4177088	Process and installation for heat treating spheroidal or lamellar graphite cast iron pipes A process for effecting an annealing treatment of a spheroidal or lamellar graphite cast iron pipe. While the pipe is driven in rotation about the axis of the pipe, it is suspended substantially horizontally as it issues from the centrifugal casting machi...	12/04/1979
4175730	Device for cooling a quenching bath of melted salt A device for cooling a heat treatment bath of melted salt into which heat is being introduced through the quenching of hot workpieces, the heat being removed from the salt bath through the introduction of a partially evaporated cooling medium, preferably ...	11/27/1979
4149702	Method and apparatus for recycling heat treating salts A system for recycling heat treating salts such as nitrates and nitrites from a rinse bath including means to prevent the excessive build-up of impurities such as carbonates which impair heat treat efficiency. For example, carbonates which form in a nitra...	04/17/1979
4133515	Heat treatment A heat treatment plant comprising an assembly of refractory material adapted to receive a bath and containing a channel for a burner and optionally a channel for a flue, a framework adjacent to the refractory material, and at least one sub-frame mounted o...	01/09/1979
4113511	Liquid additions to fused chemical baths A method and apparatus is disclosed where aqueous solutions of chemicals are added to fused non-aqueous baths. This is done by spraying the aqueous solution of the chemicals onto the surface of the fused bath in a fine spray, causing the evaporation of th...	09/12/1978
4109897	Salt reclamation system A salt reclamation system especially for use with molten salt baths used for treating articles by immersion of the articles in the bath and then withdrawal thereof, with resultant drag-out of salt. The salt removed from the bath on the surface of the arti...	08/29/1978
4106905	Process for providing insulating covers A process for providing a thermal insulating cover of discrete particles for a container of fluids involves forming a plurality of hollow interior, discrete, ceramic particles, firing the particles at a temperature of at least 350° C and then covering th...	08/15/1978
4066477	Method of maintaining temperature of salt bath during quenching of steel wire A fluid is admitted into a bath having a certain temperature. The temperature of the fluid is different from that of the bath. The fluid travels through the bath so that heat transfer occurs between the bath and the fluid while, at the same time, the bath...	01/03/1978
4056703	Process and apparatus for resistance heating of electrically conductive workpieces Elongated electrically-conductive workpieces such as bars, strips and wire, are resistance heated by passing an electric current through a length of the workpiece between a pair of spaced contacts. The contacts are electrically-conductive molten metal or ...	11/01/1977
4011110	Method and apparatus for forming and treating bundles of steel rods A hot steel rod which issues from the last pass of a rod mill is coiled at a level above a bath of molten salt and successive coils are caused to descend in the bath toward a platform on which they accumulate to form a bundle. The coils are out of contact...	03/08/1977
4003763	Method of and plant for patenting steel wire bundles Method of and plant for patenting steel wire bundles, according to which a cooling vat is heated by a heating fluid to a temperature of e.g. 500° C considered as cooling temperature for patented steel wire bundles. Into this cooling vat is then introduce...	01/18/1977
3972514	Centrifuge for the refining of nonferrous metals The centrifuge consists of a hollow housing disposed wherein is a hollow bowl containing a hollow pusher whose side wall is formed by the side wall of the bowl. The hollow pusher is capable of reciprocating inside the bowl, being attached to the piston ro...	08/03/1976

PatentStorm

Bizarre Patents

PatentStorm News

Class 266/120 - By immersing an article to be treated in bath of molten material, e.g., salt bath