The hot-scarfing machine is designed to conditions slabs of low-carbon, medium-carbon, and low-alloy steels. Trial batches of conditioned steels 09G2FB and 17G1SU were inspected. Conditioning slabs of steel 09G2FB to a depth of 3-5 mm increased output of usable skelp and reduced the amount of skelp requiring conditioning.

hot scarfing slab china - alanglover. Hot Scarfing Machines A typical hot scarfing machine package as supplied by LTEC includes not only the machine itself and its related auxiliary assemblies, but also the benefit of our more than 75 years of successful experience to assist in planning, commissioning and maintaining the equipment. ...

PURPOSE: A scarfing device for a slab which exactly performs a scarfing performance is provided to accurately correct the top and bottom surface of a slab by elevating the scarfing device according to variable curvature of the slab. CONSTITUTION: A scarfing device for a slab comprises a slab curvature measurement member(500) …

Furthermore, we simulated the scarfing slab and identified the alloying element responsible for crack propagation in the slab during the scarfing process. ... A hot press forming (HPF) steel of tensile strength of 2000 MPa was used as a reference material that has fractured during a natural cooling process. When the slabs of the reference alloy ...

hoT sCarfing maChinEs. Hot scarfing removes defects from slabs, blooms, and billets at an elevated temperature. More commonly, the term "hot scarfing" has come to mean mechanized, oxyfuel gas desurfacing of steel that is at or near rolling temperature – normally about 2000°F (1092°C) – as carried out in the production line.

Scarfing machine ( 1 ) for scarfing hot and cold work pieces ( 2 ), such as slabs, blooms and billets made from steel in and downstream of continuous casting plants with a roller table ( 3 ) arranged in the direction of transport of the work piece, on which the work piece ( 2 ) to be scarfed can be moved back and forth. The scarfing machine ( 1 ) is set up in a …

These machines are capable of scarfing steel in a broad range of temperatures, from ambient to hot rolling temperature (21°C/70°F - 1092°C/2000°F). Two types of machine …

L-TEC Steel Industry Products is a world-leading manufacturer of mechanized scarfing machines, heavy industry cutting machines, and other related equipment. Hot Scarfing …

Fast and slow cooling methods are used for cooling steel slabs after the continuous casting process. The fast cooling method involves the lateral placement of slabs on the ground one by one as shown in Fig. 1 (b), while the slow cooling method involves the stacking of the slabs as shown in Fig. 1 (c). The phase transformation during the cooling …

The hot-scarfing machine is designed to conditions slabs of low-carbon, medium-carbon, and low-alloy steels. Trial batches of conditioned steels 09G2FB and …

scarfing to whole surface scarfing of 2 perpendicular sides of the slab. The angle of the slab also eliminates the need for powerful granulation water sprays as the slag falls via …

These machines are capable of scarfing steel in a broad range of temperatures, from ambient to hot rolling temperature (21°C/70°F - 1092°C/2000°F). Two types of machine are available: "overhead" machines for scarfing the top and one edge of a slab in one pass, and "pass-through" machines for scarfing the four sides of slabs in a single pass.

This document is available to the public through the National Technical Informa- tion Service, Springfield, Virginia 22161. ------- EPA-600/2-76-054 March 1976 CONTROL OF STEEL PLANT SCARFING EMISSIONS USING WET ELECTROSTATIC PRECIPITATORS by John Varga, Or. Battelle-Columbus Laboratories 505 King Avenue Columbus, Ohio …

Hot and cold scarfing machines, heavy scrap cutting, slab slitting and shape cutting machines, dross removal machines, heavy burning equipment, metallurgical burners and equipment and sub-arc welding equipment. ... hot and cold rolling mills, profile rolling mills, process lines, as well as complete mini mill electrical systems including ...

Hot Scarfing Machines. A typical hot scarfing machine package as supplied by L-TEC includes not only the machine itself and its related auxiliary assemblies, but also the …

Hot and cold scarfing machines, heavy scrap cutting, slab slitting and shape cutting machines, dross removal machines, heavy burning equipment, metallurgical burners …

L-TEC Steel Industry Products is a world-leading manufacturer of mechanized scarfing machines, heavy industry cutting machines, and other related equipment. Hot Scarfing Machines L-TEC hot scarfing machines remove surface defects from slabs, blooms, and billets at or near rolling temperature.

The earliest iron making process, but still used in underdeveloped countries. (2) Modern Definition: a semi-finished hot rolled steel product, rectangular in section, usually produced on a blooming mill but sometimes made by forging. Bloom A semi-finished hot rolled product, rectangular in cross section, produced on a blooming mill. For iron ...

ESAB does business in the steel and other heavy industries as L-TEC Steel Industry Products Division. This division was formed in July 1985 by the purchase of Union Carbide Corporation's (UCC) welding, cutting and scarfing machine businesses including the associated distribution network, engineering and manufacturing facilities.

The utility model is related to a kind of fully-automatic intelligent hot scarfing machine system, normal production is controlled without operating personnel.It is made of L2 computer systems, descaling machine PLC, slab identification vision system and hot scarfing machine ontology.L2 computers send manufacture basic parameter and slab …

Yield is improved thanks to reduction of the hot scarfing rate and shortening of the bottom cropping length in the conditioning process, through improvement of the surface quality. ... Largest Slab Size: 300mm x 2,300mm; 1-Strand. Country: China Client: Baoshan Iron & Steel Co., Ltd. Completion: 2005 Equipment specifications: No. 2 SL-CC ...

China Prior art keywords fixed plate scarfing machine hot scarfing hindered floating side Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN201721255483.5U

The utility model is related to a kind of hot scarfing machine descaling system, including conveying roller, descaling mill, seal closure, outlet side in the seal closure, which is provided with pinch roll and photoelectric detection system, the descaling mill, is provided with water inlet manifold, the external high-pressure water not less than 1.25MPa of …

Hot Scarfing Machines Cold Scarfing Machines Spot and Band-Pass Scarfing Machines Steel Industry Cutting Machines Other Special Steel Industry Products Support; L-TEC …

Slab quality before scarfing, after scarfing and processing in the strip mill (using Parsytec) are all used. These results are reported in Appendices 2 and 4. Task 1.6 Validate and Compare to Other Systems The Arcelor system is fully installed on-line to inspect both the top and bottom faces of slabs. Slabs

Appearance of broken SK85 slab during hot rolling process. the control limit. An approximate layer of 2 mm thick-ness on each wide surface of slab is removed by …

The algorithms to detect scarfing faults on slabs have also been proposed. For example, Choi 8) proposed detection algorithm using sine and cosine Gabor filter and Ryu 9) used multi-angle Gabor filter to detect scarfing faults in the middle of slab. However, these algorithms are unable to detect scarfing faults located in the edge regions ...

The present invention relates to a kind of fully-automatic intelligent hot scarfing machine system, normal production is controlled without operating personnel.It is made of L2 computer systems, descaling machine PLC, slab identification vision system and hot scarfing machine body.L2 computers send manufacture basic parameter and slab …

Continuous casting produces some 95 percent of steel. As a pioneer of this technology, SMS group offers the world's largest portfolio of plants for carbon and stainless steel slabs. It also means that the thin, medium, thick and ultra-thick slabs produced on our continuous casters all form an ideal basis for superior steel products.

Disclosed is a scarfing apparatus. According to an embodiment of the present invention, the scarfing apparatus comprises: a top nozzle unit performing scarfing in a top portion of a slab; and a bottom nozzle unit performing scarfing in a bottom portion of the slab. The bottom nozzle unit comprises: a scarfing block including a head block …