US809871A - Process for producing compound ingots. - Google Patents

Description

No. 809,871. PATENTED JAN. 9,1906. M. WEISS. PROCESS FOR PRODUCING COMPOUND INGOTS.

APPLICATION FILED MAILZE, 1905.

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UNITED STATES PATENT OFFICE.

PROCESS FOR PRODUCING COMPOUND 'INGOTS.

Specification of Letters Patent.

Patented Jan. 9, 1906.

Application filed March 28, 1905. Serial No. 252,513.

To all whom it may concern.-

Be it known that I, MoRITZ Wales, a citizen of the United States, residing in Phila delphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Processes for Producing Compound Ingots, of which the following is a specification.

This invention relates to processes for producing compound ingots.

It has for its object to make a compound ingot composed in different parts of different alloys and formed in a solid fused mass from one molten mass. It is especially designed for steel ingots with varying contents of carbon and other ingredients in the different parts.

In the drawings, Figure 1 is a section on the line f It, Fig. 3, of an apparatus by which my process may be carried out. Fig. 2 is a section on the line a b, Fig. 1; and Fig. 3 is a section on the line 0 d, Fig. 1.

A mold-stool A, of iron, supports a mold B, made of one or more pieces, generally of iron. The mold-stool A is provided with a transverse recess, in which is mounted refractory material A, and the mold B is provided intermediate its ends with vertical recesses C on opposite sides, filled with refractory material C, the refractory material on the stool and the refractory material on the mold forming a U within the mold. An elevating and lowering means, such as a crank H, is located at one side of the mold B, and on the arm H thereof is trunnioned at G a heating device F. This heating device comprises two depend ing tubular members F, which are connected together at their upper ends at and simultaneously receive fuel from pipe F The fuel is delivered through a series of openings F in the tubular members F and also through openings F in the lower ends of the tubular members, the lower ends of the members being connected by a dividingblock E, which is heated by the fuel from the openings F and is made of refractory material or an alloy.

The process is carried out as follows: The refractory lining in the mold and the stool having been heated and the dividing-block E having been brought to a high temperature to avoid freezing in, the latter, together with the heating device, is lowered into the mold by means of the crane H, the fuel burning from the openings F and F keeping the lining 0 and the dividing-block F hot. Highcarbon steel from ladle K and low-carbon steel from ladle L are then poured into the mold on opposite sides of the dividing-block. The tendency of the metals to flow together and mix is greatly reduced by the dividingbloclqwhich is held through the disturbed part into the region where the two metals, though liquid, are without motion. As the filling of the mold progresses the fuel-supply, together with the dividing-block, is raised to suit by means of the crane H. During the pouring the high-carbon side can be cooled by water passing from pipe N and flowing on the high-carbon side of the mold, thereby augmenting the thickness of the crust now forming. At the dividing place or point of interflowing the metal stays in a liquid state longer and helps to fill up the cavities during cooling. Any difference in the level between the two alloys will be disclosed by the heating device swinging on its trunnions G, whereupon the flow from one ladle can be adjusted. The irregularities in composition from the clearance of the dividing-block and the mixture of flows are balanced during the subsequent heating of the ingot.

By my invention I produce a compound ingot formed into one weldless solid mass of different compositions in different parts from one molten mass without introducing a partition to become part of the ingot.

It is to be understood that within the scope of the appended claims I may make various changes without departing from the spirit or sacrificing any of the advantages of my invention.

Having thus described my invention, what I claim is- 1. The process of making compound in gots of different materials in different parts, which consists in pouring molten materials of different composition into a mold side by side, and heating the materials at their point of interflowing.

2.. The process of making compound ingots of different materials in different parts, which consists in pouring molten materials of different compositions into a mold side by side, heating the materials at their point of interflowing, and cooling one of said materials in advance of the other.

3. The process of making compound ingots of different material in different parts, which. consists in pouring molten materials in a mold side by side, heating the mold only at the point of interflowing of the molten ma- -material and through the disturbed portion thereof until the two materials are, though in a liquid state, without motion, and heating the materials at the point of interflowing.

5. The process of making compound ingots of different materials in diflerent arts, which consists in maintaining a heated ividing-block at the point of interflowing of the materials until the materials are without motion and then removing the dividing-block and permitting the materials to mix.

The foregoing specification signed at Philadelphia this 24th day of March, 1905.

MORITZ WEISS.

In presence of HENRY W. Fox, HARRY C. HOCHSTADTER.

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