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JP4418188B2 |
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JP4407081B2 |
A steel slab is rough-rolled into a sheet bar and butt-joined onto a preceding sheet bar and a widthwise end portion of the sheet bar is heated by means of an edge heater and then subjected to a continuous finish rolling through pair-cro...
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JP4389136B2 |
A control unit of hydraulic pinch rolls 1 comprises: position detectors 10c, 10d that detect position of right and left cylinder pistons 6c; an arithmetical unit 13 that calculates a difference of output 16c, 16d from the position detect...
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JP4389869B2 |
When manufacturing a seamless pipe by carrying out elongation rolling and sizing on a mother tube for forming a seamless pipe, the occurrence of portions of thickness variation in the seamless pipe is suppressed by previously identifying...
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JP4374703B2 |
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JP4376664B2 |
To properly regulate the relation between the moving speed of a joining machine and the traveling speed of a metal bar. Hot rolling equipment has a joining machine, disposed in the upstream side of a finishing mill 4, for joining the rea...
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JP4370628B2 |
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JP4370495B2 |
The invention relates to an interconnection between two overlapping end sections of metallic strips (10, 20) in which a quick and economical interconnetion should be produced. To this end, the invention provides that several annular weld...
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JP4369850B2 |
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JP4372540B2 |
A bridle unit assigned to a rolling stand with several rolls arranged in adjustable positions below and above the strip flow, which can be moved by means of a drive from an initial position to the strip and from the strip back into the i...
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JP4366825B2 |
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JP4358968B2 |
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JP4352188B2 |
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JP4346722B2 |
The machine has a winding station (1) and an unwinding station (2), which are moved towards each other to transfer a coil (10), and the winding roller (3) on the intake side is lifted. The intake-sided unwinding roller (5) is lifted or l...
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JP4338415B2 |
Control of flash butt welding of two metallic components, especially two metallic strips, involves controlling the approach velocity of the two ends of the metallic components as a function of the development of the welding process. The ...
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JP4335333B2 |
There is described a method for cutting continuously supplied material such as, for example, a strip, a round bar or other metal and non-metal products, intended in particular for production with high feeding speeds of the material. Cutt...
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JP4334539B2 |
The invention relates to a method and an installation for hot-rolling strips using a reversible Steckel rolling frame ( 8 ), each side of which is equipped with a respective furnace coiler ( 9, 10 ) and a driving mechanism ( 17,18 ), pro...
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JP4332117B2 |
An aluminum ingot is subjected to hot rolling, cold rolling and then intermediate annealing to obtain a rolled article. Tensile strain is applied to the rolled article without subjecting the rolled article to cold rolling after the inter...
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JP4322060B2 |
PURPOSE: To provide a continuous strip hot rolling apparatus capable of detecting a bonding point of a preceding metal sheet and a succeeding metal sheet during traveling of the metal sheet, and a continuous strip hot rolling method capa...
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JP4313276B2 |
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JP4312670B2 |
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JP2009166116A |
To provide a new steel conditioning facility and a steel conditioning method capable of improving a conditioning performance of a steel member.The steel conditioning method includes the steps of sequentially charging a steel member in a ...
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JP4293476B2 |
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JP2009142899A |
To provide equipment for and a method of hot-rolling a continued steel strip, wherein a joined point can be detected with high accuracy without providing special sensors.A joining machine 10 for joining the rear end part of a preceding m...
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JP4288552B2 |
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JP4286936B2 |
The high speed cutting device has a chisel blade (11) attached to a rotating drum (6) in a radial guide (9). The drum can be adjusted with a positioning device (36) to match the speed of the rate of feed and is working in combination wit...
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JP4277923B2 |
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JP4269394B2 |
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JP4263098B2 |
A tungsten wire containing 1 to 10% by mass of rhenium has a point which indicates a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (9...
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JP4262079B2 |
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JP4264284B2 |
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JP4248670B2 |
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JP4242468B2 |
Successive axially spaced sections of a tubular blank (22) are pressed against different axially spaced sections (18,19) and (20,21) of a mandrel (14), which is shifted axially between pressing steps, to produce a tube of uniform externa...
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JP4240643B2 |
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JP4236518B2 |
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JP4232526B2 |
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JP4230651B2 |
An upper shearing blade 3 equipped with a protrusion 30 of a triangle-columnar shape and a lower shearing blade 4 equipped with a protrusion 40 of the same shape are applied onto the overlapped portion of metal plates 1 and 2 to be bonde...
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JP4217333B2 |
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JP2009012040A |
To provide a method and manufacturing equipment with which the shear cracks are prevented, and which are suitable for the thick steel plate having thickness of 4 mm to 40 mm and having TS (tensile strength) of 490 MPa.In this method for ...
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JP4211113B2 |
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JP2008304286A |
To provide a method for measuring a long bar with high accuracy and in a short period of time, and a method for efficiently cutting it to the length of a regular size by using this measuring method.As a billet 28 is being conveyed on a c...
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JP4199554B2 |
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JP4186131B2 |
In a steel pickling process, especially for stainless steel strip, employing an aqueous hydrochloric acid pickling solution, the Fe(III) ion concentration is maintained at 1-300 g/l, for constant pickling capacity of the solution of pH l...
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JP2008272792A |
To provide an apparatus for inspecting the welded portion of a steel strip, which apparatus can precisely inspect the butt welded portion of the steel strip.In the apparatus for inspecting the welded portion of the steel strip, the butt ...
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JP4180230B2 |
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JP4172084B2 |
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JP4172083B2 |
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JP4167976B2 |
The invention relates to a method and device for measuring and influencing the strip flatness in the coiler shaft of a hot-strip mill, whereby the coiler shaft has, between a driver and a coiler, moving and stationary strip guides as wel...
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JP4165724B2 |
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JP4165723B2 |
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