Process and apparatus for the separation of metallurgical products
AssigneeThyssen Aktiengesellschaft
InventorWaldemar Radtke
Life of this patent
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Abstract
A process and apparatus for separating metallurgical products such as ingots, slabs or plate-shaped workpieces using a cutting torch disposed on one side of the product which follows a prescribed cutting line and which forms a front cutting edge on the surface of the product facing the torch and a rear cutting edge on the opposite side of the product and a cutting joint therebetween. At least one gaseous jet is directed at the rear cutting edge of the product to blow molten metal and liquid slag formed during cutting away from the rear cutting edge, thereby preventing the formation of flame burrs at the edges of the cutting joint.
Claims23
In a process for separating metallurgical products, such as ingots, slabs or plate-shaped workpieces, and in particular for transversely dividing the cast strand in continuous casting plants and for longitudinally dividing continuous cast ingots which have previously been cut into lengths, in which the metallurgical products are divided using at least one cutting torch which forms a cutting jet disposed on one side of the product and by following a prescribed cutting line and in which a front cutting edge is formed on the surface of the product facing said cutting torch and a rear cutting edge is formed on the opposite side of the product and a cutting joint is formed therebetween, the improvement comprising directing at least one gaseous jet at said rear cutting edge of said product, whereby a mixture of molten metal and liquid slag formed during cutting of said product is blown away from said rear cutting edge of said product thereby preventing the formation of flame burrs at the edges of said cutting joint.
In an apparatus for separating metallurgical products, such as ingots, slabs or plate-shaped workpieces, and in particular, for transversely dividing the cast strand in continuous casting plants and for longitudinally dividing continuous cast ingots which have previously been cut into lengths, said apparatus including at least one cutting torch which forms a cutting jet disposed on one side of the product for dividing the product by following a prescribed cutting line and which forms a front cutting edge on the surface of the product facing said cutting torch during cutting and a rear cutting edge on the opposite side of the product and a cutting joint therebetween, the improvement comprising at least one gas jet nozzle means, coupled to said cutting torch and directed at said rear cutting edge of said product, for blowing molten metal and liquid slag formed during cutting of said product away from said rear cutting edge of said product, thereby preventing the formation of flame burrs at the edges of said cutting joint.
Dependencies are inferred from the claim text.