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6589371 |
Method of processing titanium metal alloys
A method of manufacturing titanium alloys in large-section semi-finished product form with controlled microstructure in micrograin and subcrystalline states of aggregation, with reduced...
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6440579 |
Process for producing a drawn wire made of stainless steel, in particular a wire for reinforcing tires, and wire obtained by the process
Process for producing a drawn wire, in particular a wire for reinforcing tires, having a diameter of less than 0.3 mm by drawing a base wire rod having a diameter of greater than 5 mm or a predrawn...
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6410163 |
High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them
The present invention provides a high strength thin excellent workability and galvanizability, having a composition comprising from 0.01 to 0.20 wt. % C, up to 1.0 wt. % Si, from 1.0 to 3.0 wt. %...
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5997664 |
Method for producing galvanized steel sheet
Method for producing a galvannealed steel sheet wherein a slab consisting essentially of C in an amount of 0.004 wt. % or less, N in an amount of 0.004 wt. % or less, Ti in an amount of 0.01 to...
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5759304 |
Process for producing hot rolled steel strip with adjusted strength
In a process for producing hot rolled steel strip with adjusted strength a steel with 0.04 to 0.06% carbon, at most 1% silicon, at most 1% manganese, 13 to 18% chromium, at most 2% nickel, balance...
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5572892 |
Method of producing silicon steel hot rolled sheets having excellent surface properties
In a production method for silicon steel hot rolled sheets by subjecting a slab of silicon steel to a rough hot rolling through high-temperature heating and then subjecting to a finish hot rolling,...
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5296050 |
Method of producing grain oriented silicon steel sheets having improved magnetic properties
This invention not only improves the formation of fine crystal structure and hence the magnetic properties as well as surface properties while utilizing the merits of the hot strip mill at maximum...
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5188677 |
Method of manufacturing a magnetic disk substrate
A method of manufacturing a titanium alloy magnetic disk substrate comprising (a) cold-rolling an alloy plate at a rolling ratio of no less than 30%, the alloy plate comprising 0.5 wt. % to 1.0 wt....
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4931107 |
Process for producing a cold rolled steel sheet having a good ageing resistance by continuous annealing
A cold rolled steel sheet having a good ageing resistance is produced by subjecting a cold rolled steel sheet to continuous annealing including recrystallization, grain growth, quenching,...
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4908071 |
Method of manufacturing tubes of zirconium alloys with improved corrosion resistance for thermal nuclear reactors
The invention relates to a method of making tubes of Zirconium alloys containing 1-5 percent by weight of alloying elements such as Sn, Fe, Cr and Ni. According to the invention an improved...
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4834808 |
Producing a weldable, ferritic stainless steel strip
A weldable ferritic stainless steel and a method for producing the same is provided wherein the steel consists essentially of up to 0.03 carbon, up to 0.05 nitrogen, 10 to 25 chromium, up to 1.0...
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4801341 |
One-sided enamelable hot-rolled steel sheet and process for producing the same
A hot-rolled steel sheet suitable for enamelling on one side is disclosed. The steel consists essentially of 0.0050-0.07 wt % C, 0.05-1.5 wt % Mn, 0.03 0.15 wt % P, 0.03-0.1 wt % Al, 0.003-0.010 wt...
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4786338 |
Method for cooling rolled steels
Steel hot-rolled to the desired diameter and allowed to travel forward is quenched with cooling water to a temperature below the bainite transformation temperature chosen from within the following...
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4770719 |
Method of manufacturing a low yield ratio high-strength steel sheet having good ductility and resistance to secondary cold-work embrittlement
The invention relates to a method of manufacturing a high-strength steel sheet by annealing the steel sheet after cold rolling. In order to obtain the low-yield ratio, high-strength steel sheet...
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4745786 |
Hot rolling method and apparatus for hot rolling
A hot rolling method, wherein portions of a hot-rolled steel material having suffered a temperature fall below Ar 3 transformation temperature thereof during hot rolling are subjected to an...
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4738733 |
Method for heat-treatment of a strip
An improved method for heat-treatment of a strip in a continuous annealing installation in which the strip is heated or cooled by bringing it into contact with a heating or cooling roll having a...
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4709572 |
Method of processing continuously cast slabs
A continuously cast slab is processed to prevent the formation of surface cracks by applying plastic strains to the surface layer of the slab in which a process of solidification is taking place....
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4698103 |
Method of manufacturing dual phase strip steel and steel strip manufactured by the method
In a method of manufacturing a dual phase steel a strip of thickness 0.1 to 0.5 mm from an unalloyed low C, low Mn steel composition of 0.02-0.15% C and 0.15-0.50% Mn, which method includes...
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4676844 |
Production of formable thin steel sheet excellent in ridging resistance
A process for producing a formable thin steel sheet excellent in ridging resistance. Said process comprises finishing a low carbon steel at a strain rate of not less than 300 (s -1 ) in a...
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4668308 |
Method and apparatus for manufacturing rails
At the exit from the hot rolling mill the rail temperature is reduced to a value not less than that at which the pearlite transformation begins in the rail head. From this temperature the...
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4605449 |
Process for producing a rolled steel product having high weldability, a high yield strength and a good notch impact toughness at very low temperatures
A process for producing rolled steel products, especially reinforcing rod for concrete or other elements to be encased in concrete and having good weldability, a high yield strength and high energy...
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4495009 |
Method of cooling cold steel strip with cooling rolls
A method of cooling band or hoop steels with hollow cooling rolls through which a cooling medium flows to absorb the heat of the steel strips trained about and in contact with the hollow cooling...
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4494998 |
Process for producing austenitic stainless steels less susceptible to rolling defects
Process for producing austenitic stainless steels, which process prevents occurrence of rolling defects, particularly slivers. Specifically, process for controlling casting conditions on the basis...
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4437903 |
Method for producing two-phase hot rolled steel sheet having high strength and low yield ratio
A method for producing two-phase steel sheets having a material quality equal to or better than the conventional two-phase steel sheets by an addition of a very small amount of B so as to...
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4421572 |
Thermomechanical treatment of alloys
An article of an alloy of AISI 316 stainless steel is reduced in size to predetermined dimensions by cold working in repeated steps. Before the last reduction step the article is annealed by...
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4376661 |
Method of producing dual phase structure cold rolled steel sheet
A method of producing a dual phase structure cold rolled steel sheet having tensile strength 35 to 50 kg/mm 2 , yield ratio less than 60% and high elongation which comprises hot rolling and cold...
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4374682 |
Process for producing deep-drawing cold rolled steel strips by short-time continuous annealing
A process for producing a cold rolled steel strip having excellent workability by a short-time continuous annealing, which process is constituted by hot rolling a low carbon steel slab of steel...
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4336080 |
Method for manufacturing high-strength cold-rolled steel strip excellent in press-formability
A method for manufacturing a high-strength cold-rolled steel strip excellent in press-formability, which comprises the steps of: preparing a slab of an aluminum-killed steel consisting essentially...
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4285741 |
Process for producing high-strength, low yield ratio and high ductility dual-phase structure steel sheets
Process for producing a high strength, low yield ratio and high ductility dual-phase structure steel sheet having a structure composed mainly of a ferrite phase and a rapidly cooled transformation...
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4265679 |
Process for producing stainless steels for spring having a high strength and an excellent fatigue resistance
Stainless steels for springs having a high strength and an excellent fatigue resistance are produced by heat treating austenitic stainless steels having such a composition that austenite stability...
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4256516 |
Method of manufacturing non-magnetic Fe-Mn steels having low thermal expansion coefficients and high yield points
Low nonmagnetic steel having a thermal expansion coefficient of 1.0.about.1.3×10 -5 /°C. and a high yielding point of higher than 36 Kg/mm 2 consists of less than 0.5% by weight of C, less than...
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4191597 |
Heat treatment for martensite cured alloys
A process for improving the mechanical properties of martensite curred alloys comprising a cold mechanical working, a heat treatment within specified parameters, and a rapid cooling below 400° C....
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4057989 |
Method for levelling a metal strip or sheet
A method for levelling a metal strip or sheet in which the metal strip or sheet is subjected to repeated bending by means of a roll arrangement of two or more rolls having a diameter of at least...
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3981752 |
Method for controlling the temperature of steel during hot-rolling on a continuous hot-rolling mill
Method for hot-rolling carbon and alloy steels in a continuous hot-rolling mill including spraying water onto the surface of the steels at selected locations in the continuous hot-rolling mill...
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3939015 |
In-line heat treatment of hot-rolled rod
Hot rolled steel rod, containing less than 0.4% C, is cooled by a prescribed, interrupted-cooling procedure for producing rod with enhanced ability to receive cold work. In cooling from the...
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3502514 |
METHOD OF PROCESSING STEEL
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3423252 |
THERMOMECHANICAL TREATMENT OF STEEL
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3834948 |
Title is not available
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3717513 |
Title is not available
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3613425 |
Title is not available
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