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7615124 |
Method for making a plated steel armouring wire for a flexible tubular pipe transporting hydrocarbons, and armoured pipe
A process for manufacturing plated-steel armor wires intended for reinforcement of flexible tubular pipes for transporting hydrocarbons, comprising a plating coating is intimately bonded, by high...
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7163754 |
Sprocket wheel having a metallurgically bonded coating and method for producing same
A sprocket has a base steel member including an outer toothed profile surface, at least a portion of the outer toothed profile surface having a wear and corrosion resistant coating disposed...
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7147729 |
Method and apparatus for induction heat treating electrical contacts
A method and apparatus are provided in accordance with embodiments of the present invention for heat-treating electrical contacts. The method and apparatus include plating a core wire with at least...
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6843866 |
Process for producing wear-resistant surface layers
Process for the effective production of very wear-resistant layers in the thickness range of 0.2 to approx. 3 mm by way of inductively supported surface layer modification. It can be used...
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6511559 |
Process for producing wear-resistant edge layers in precipitation-hardenable materials
A process for producing wear-resistant edge layers in precipitation-hardenable materials wherein a component that was conventionally solution annealed and subsequently subjected to a conventional...
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6383315 |
Profile clamp and method for manufacturing a profile clamp
A steel profile clamp is used to join flanged component parts. The profile clamp has at least partially conical side walls that are bent radially inwardly. The profile clamp has welding joints to...
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6379481 |
Method and apparatus for carrying out the annealing step of a galvannealing process
A method and an apparatus for carrying out the annealing step of a galvannealing process in which strips and sheets, particularly of steel, are subjected after galvanizing to an annealing step by...
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6259076 |
Method for hardening camshafts and linear inductor for the implementation of said method
A method for simultaneously hardening a group of cams on a camshaft comprises first heating the group of cams at low power for at least one heating interval, then pausing the heating for a pause...
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6231695 |
Method of heat-treating a thin sheet coated with ZnAL by hot dip galvanization
A thin sheet is coated by hot dip galvanization with a zinc based alloy comprising 3.5% to 15% by weight of aluminum. Immediately after solidification of the coating, the thin sheet is heated for 2...
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6190470 |
Process for manufacturing a honeycomb body from heat-treated two-layered or multi-layered metal foils
A process and a device are provided for manufacturing a honeycomb body from at least one metal foil constructed from at least two different layers, in particular from steel roll-bonded with...
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6156133 |
Method for manufacturing a product with a metallic basic body
A method for manufacturing a product that includes a metallic basic body with at least one longitudinal duct disposed therein and with a number of transverse ducts branching off from the...
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6156134 |
Bonding method of dual phase stainless steel
In a method of bonding ferric and austenitic dual stainless steels, an insert material made of a Ni base alloy having a melting point below 1290° C. is put between the bonding cross section faces...
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6083329 |
Gas shielding apparatus and gas shielding method
A gas shielding apparatus comprising a main gas jacket having induction heating means, and front gas jacket and rear gas jacket integrally disposed at supply side and discharge side of a member to...
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6063218 |
Bearing manufacturing method
In a method of manufacturing a bearing, a high-frequency hardened steel essentially containing the following elements in the following percentage by weight is employed as the material of at least...
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5911844 |
Method for forming a metallic material
A method for drawing a portion of metallic material having a known hardness. The method includes the step of applying a localized heat treatment to predetermined portions of the metallic material....
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5830289 |
Process for enhancing the bond strength of resistance welded joints between titanium alloy articles
A process for enhancing the bond strength of resistance welded joints between titanium alloy articles includes a first step of resistance welding two titanium alloy articles and a second step of...
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5821500 |
Process for manufacturing welding wire
A process for manufacturing seamless flux-cored welding wires 0.8 to 4 mm in diameter with excellent cracking resistance and primer proof quality and containing very little diffusible hydrogen...
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5766378 |
Stainless steel surface claddings of continuous caster rolls
A heat-treated cladding on the working surfaces of continuous caster rolls reduces sensitization zones. The thermal treatment applied conditions the working surface of the roll substantially...
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5721414 |
Method of manufacturing a spark erosion electrode wire
An entry wire passes through a furnace containing zinc vapor in an inert atmosphere. While passing through the furnace the wire is heated by the Joule effect, by passing through it an electrical...
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5718780 |
Process and apparatus to enhance the paintbake response and aging stability of aluminum sheet materials and product therefrom
A method and apparatus for making aluminum alloy sheet product with improved paintbake response during automotive paintbake cycles, resistance to natural aging and better formability includes...
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5699955 |
Method of bonding Ti-alloy members
A method of firmly jointing Ti-alloy members of various shapes such as pipes and rods by solid diffusion bonding. The members are butted and heated under pressure in a non-oxidizing atmosphere,...
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5628842 |
Method and apparatus for continuous treatment of a strip of hot dip galvanized steel
A method and apparatus for continuously treating a strip of hot dip-galvanized steel. The method comprises the steps of rapidly reheating the strip to a predetermined temperature between 460° C....
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5509980 |
Cyclic overageing heat treatment for ductility and weldability improvement of nickel-based superalloys
The present invention is directed to a pre-weld overageing heat treatment for nickel-based superalloys, where the alloy is heated to solutionization temperature for a time sufficient to dissolve...
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5494539 |
Metal member quality improving method by spot welding
By applying spot welding along a crack which has occurred in an austenitic stainless steel structure without use of welding material so that spot welds are connected, melting and solidifying of the...
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5409553 |
Process for manufacturing galvannealed steel sheets having high press-formability and anti-powdering property
It is an object to provide a process for manufacturing galvannealed steel sheets having high anti-powdering property as required when they are press formed, and stabilized frictional properties in...
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5167733 |
Method for manufacturing iron-manganese-aluminum alloy castings
An Fe-Mn-Al alloy is useful for making a precision casting having uneven or thin wall thickness. The alloy, which contains carbon 1.5-2.0% manganese 32.36% aluminum 6-8%, molybdenum 1.0-1.5% and...
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5157231 |
Apparatus for inductive hardening crankshafts with crank pins having a hollow ground radius
A method for the inductive hardening of working surfaces and transition radii on crankshafts in which, to receive connecting rods, crank pins are disposed directly one after another at different...
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5128172 |
Continuous coating process with inductive heating
A continuous process for coating a series of workpieces with a metal coating comprises the steps of cleaning the workpieces with a high-pressure water system which utilizes particulates; isolating...
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5037490 |
Process for allowing pretreatment of assembled camshaft components
A process for allowing pretreatment of components for an assembled camshaft in the course of whose production drive elements are attached in a force-locking way to a tube through plastic expension...
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5009000 |
Method for making sucker rod oil well pump
A method of hardening a sucker rod well pump has a step of forming a boronized case on the plunger. Then the plunger is heated and quenched to form a hardened steel supporting layer. A chromium...
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4980245 |
Multi-element metallic composite article
A metallic composite alloy composition useful in electrical components comprises at least one base metal alloy constituent metallurgically bonded to at least one noble metal alloy constituent. A...
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4871403 |
Method for producing electrical steel core laminations
Core laminations are stamped from electrical steel strip and stress annealed by induction heating in a closed tubular chute inclined downwardly from the stamping press. A preselected, non-ambient...
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4844747 |
Process of producing a composite roll
A process of manufacturing a roll suitable for use in a rolling mill, the roll having a cylindrical barrel middle section and a neck at each end of the barrel, wherein the barrel and necks are of...
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4818311 |
Methods of and apparatus for heating a moving metallic strand material
During the heating of a moving wire (21) such as when the wire is being aaled, the wire is heated in such a manner that the energy applied to each successive increment of length of the wire is...
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4796653 |
Method of enhancing residual compressive stress in double metallic tubes
A method of enhancing residual compressive stress in a horizontal double metallic pipe which includes an outer pipe and an inner pipe fitted into the outer pipe. Cooling water is introduced into...
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4791259 |
Method and apparatus for retaining a valve seat insert
A method of heat treating a valve seat insert and the resultant combination of the valve seat insert within an engine component is disclosed where the volumetric increase of a portion of the valve...
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4766664 |
Process for formation of high strength aluminum ladder structures
An improved process by which heavy duty aluminum ladder rungs are easily manufactured with the central stepping portion of the rung itself possessing qualities of exceptionally high yield strength,...
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4731131 |
Method of subjecting welded structure to heat treatment
A method of subjecting a welded structure to heat treatment in which a tensile yield is produced on an inner surface of the welded structure and a compressive yield is produced on an outer surface...
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4694131 |
Induction heating method and apparatus for relieving residual stress in welded joint between main and branch pipes
A heating method and heating apparatus for uniformly or substantially uniformly heating a predetermined portion of main and branch pipes including a welded joint therebetween of a...
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4686342 |
Process for making wire mesh screens
A welding process for the manufacture of high carbon steel wire mesh for use in wire screens. In this process at least two high carbon steel wires are crossed and its junction pre-weld heated. The...
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4652423 |
Magnetic induced heating for ferritic metal annealing
A nuclear reactor vessel has an electromagnet positioned within to generate the predetermined temperature for the vessel wall for a predetermined time to anneal the vessel.
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4643781 |
Method of heat treating valve inserts
An induction hardened valve seat insert is provided with a ridged outer surface which establishes a mechanically locked engagement with the wall of the insert bore during the induction heating cycle.
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4627882 |
Method of making a rotary drill bit
A rotary drill bit comprising a roller cutter (13) rotatably carried over a bearing system, which comprises a friction bearing (14). For purposes of ensuring sufficient hardness of the cooperating...
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4602969 |
Method for annealing a core blank used in electric machinery and devices
The present invention relates to a method for annealing a core blank of a transformer or the like so as to relieve the stress generated in the electrical steel sheet sections due to blanking. The...
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4600446 |
Method for tempering and working high strength low ductile alloy
A high strength low ductile alloy is formed in a desired shape with high accuracy by bundling a multiplicity of fine wires made of the high strength low ductile alloy, consolidating the bundle of...
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4560424 |
Process for forming a prestress anchorage by drawing a steel sleeve over a metal core
A process for forming a prestressed anchorage by drawing a steel sleeve over a metal core of elongate shape having a substantially round section, consisting in using a sleeve having an inner...
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4522659 |
Method and apparatus for the manufacture of record stampers
An improved method and apparatus is provided for the manufacture of stampers in which the stampers are electroformed from a relatively hard metal in a flat configuration and then, either before or...
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4438310 |
Method and apparatus for inductively heating valve seat inserts
A method and apparatus for heating a conical valve seat surface of a valve seat ring insert which has been previously press fitted or molded into an engine component such as an engine head. The...
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4418258 |
Method for heat treating metal
A method for relieving stress in the microstructure welds and the heat affected zone in the adjacent base metal in low alloy steel by induction heating in a second post-weld heat treatment. The...
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4360389 |
Zirconium alloy heat treatment process
Zirconium-base alloy channels, fuel cladding tubes and other nuclear reactor structural components having unique resistance to accelerated pustular corrosion in the boiling water reactor...
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