US1493603A - Horizontal mold - Google Patents

Description

R. G. COATES HORIZONTAL MOLD May 13 1924. I 1,493,603

Filed April 21. 1921 2 Sheets-Sheet l 1,493,603 y 13 v 1924 R. 6. comes HORIZONTAL MOLD Filed April 21. 1921 2 Sheets-Sheet Z Patented May is. 1924;

nnrrao STATES PATENT OFFICE.

BAY G. COATES, OF PASADENA, CALIFORNIA, ASSIGNOR TO VALLEY MOULD IRON CORPORATION, OF SHARPSVILLE, PENNSYLVANIA, A CORPORATION OF NEW YORK.

HORIZONTAL MOLD.

Application filed April 21, 1921. Serial No. 463,160.

To all whom it may concern.

Be it known that I, RAY G. Collins, a citizen of the United States, and a resident of'the. city of Pasadena, in the county of lurgy and more especially to a horizontal mold for casting ingots.

The principal object of the present invention is a combined moldbody and stool arranged in such manner that an end of the mold body is open to a suitable runnelr which may be carried by a portion of the stool.

Another object of the present invention is a combined mold body and stool and wherein one end of the mold body is closed by a member angular-1y disposed'on the stool and which may comprise eitheran integral portion or a separate piece adapted to be secured to the base of the stool by appropriate fastenings. i

A still further object of the present in vention is a suitable runner tile adapted to be mounted in the extension from the stool and wherein the runner tile is provided with a channel for feeding metal and a vent channel for permitting the escape ofgases from the mold. p a

A still further and specific object of the present invention is a fountain provided on one side thereof with a suitable gas outlet channel. Still more specifically'the present invention contemplates the provision of a detachable mold body from an L-shaped inclined stool and wherein the vertical portion of the L-shaped stool is provided with a wedge shaped recess in which a sectional runner tile provided with sand grooves in t the sides thereof is adapted to be set. 4

Other and further objects of the present invention will in part be obvious and will in part be pointed out hereinafter in the specification following by reference to the accompanying drawings wherein like parts are represented by like characters throughout the several figures thereof.

Realizing the present invention may be embodied in constructions other than those herein specifically shown and described, it

is desired the present disclosure shall be considered as illustrative and not in the limiting sense.

Figure 1 is a mid-section through one embodiment of the present invention;

Figure 2 is a plan view of the device shown in Figure 1;

Figure 3 is a perspective view of the fountain;

Figure 4 is a perspective view of a stool in accordance with the present invention;

Figure 5 is a perspective view of a cover adapted to cooperate with the stool;

Heretofore in the art the majority of steel ingots have been cast in vertical molds, al-

though it has been proposed to cast ingots in horizontal molds. In casting ingots in horizontal molds the operations are slightly more complicated than where the casting is performed in vertical molds. The present invention is intended to simplify horizontal casting operations and to provide minimum accessory parts and which are adapted for reuse and thereby further simplify both the parts and the casting operations.

The present invention overcomes the difliculties of the known art by providing an angular stool having'guiding lugs on the'base thereof and with an upstanding portion on one end of the base which is adapted to cooperatewith an open endedcover or bodymember that'may be readily set on the stool and forced against the upstanding, end by a wedge or other suitable construction. This upstanding head on the stool is provided with a centrally located wedge shaped opening, either wedge shaped vertically or horizontally), in which a sectional runner tile having sand grooves in the sides thereof is adapted to be set. The runner tile is Wedge shaped to correspond to the opening and may be provided -with an interlocking tongue and groove so that the parts are easily fitted together and may be dropped into place in the stool head either before or after the body member is positioned on the stool and without danger of the runner tile being broken by'any manipulation in setting or moving the body of the mold. When the runner tile is set a runner opening leads vertically downward to the base thereof and enters the matrix portion of the mold adjacent the lower portion of one end.

- the mold therefore continues the conduit upwardl to a height substantially equal to the dept of the fountain so. that there is no danger of metal escaping through the gas outlet during the final stages of pouring operations when the mold is filled. Preferably the mold body is inclined so that gas outlet is at the higher portion of the mold body. When the pouring is finished and the metal slightly cooled sufficiently to be solidified, the fountain may be pried off and then after the metal has further cooled, so that the ingot will not bleed, the body of the mold may be removed from the stool and the i ingot lifted from the stool.

Referring now to the drawings, the mold body 1 comprises an open ended cover member provided with lifting staples 2. and a hollow matrix 4. One end of the body is provided with an upstanding chill wall 5. This cover orbody portion is adapted to set upon an inclined stool 6, having a base 7 and a head or closing member 8. The sides of the base 7 of the stool may be provided with suitable aligning lugs 9 which assist in positioning the cover or body portion on the stool. The closing member 8 erected on the stool may be integral with the stool, or it may be a separate piece secured to it by its own weight or by a suitable fastening. When the cover is placed on the stool the open end of the .cover or chill wall 5 is placed against the closing member thereby forming a closed mold. A runner tile formed of sections 10 and 11 may be. placed in the head either before or after the cover has been placed on the stool since the tile cavity 12 and the runner tile both have 'a very large draught, thereby allowing the ready placing of the tile. At the. end of the stool away from the closing member 8 a boss or projection 1a is cast so as to furnish an abutment for a wedge shaped piece 15 which is inserted between the cover and the boss. The object of this is to prevent any longitudinal movement of the cover away from the closing member due to any ferrostatic pressures. Since the internal pressure against the cover tends to partially neutralize the weight of the cover it therefore reduces the friction between the cover and the stool. The wedge 15 should be merely pressed in byhand and not mes es and more roomy clearances between the tile and the closing member. This fine material will readily penetrate the clearance spaces and fill them but will clog in theclay wash and therefore the latter will prevent leakage of the sand into the mold. This construction prevents the formation of fins around the tile. The sand grooves 16 shown are large enough in section to permit the loose refractory material to flow freely and thus do away with the necessity of working this material into the narrower parts of the clearance spaces between the tile and the I closing member.

It is evident that the sand grooves 16 simply locally increase the clearance spaces between the tile and the tile cavity for the purpose of feeding the narrow parts of the clearance spaces with the powdered refractory. As thus fed it has but a short distance to travel in the narrower spaces before filling them. Consequently the'filling is apt to be more complete than if the refractory has to be worked down through a long distance of narrow passage. It will also be evident that the tile need not have the sand grooves but that they may be made in the sides of the cavity and the same results effected.

The runner tile contains a passage 17 for conveying the fluid, steelinto the mold as is clearly shown in the sketches. It also contains a channel 18 next the cover 1 which channel connects with the mold matrix at its highest point, and this channel forms a vent for the mold gases up to the instant that the mold is filled with fluid metal. For a given cross sectional area this channel may have a shape from nearly square, on the one hand, to very long and narrow on the other. With a large perimeter in proportion to the cross sectional area of this channel a rapid chilling effect will be experienced by any metal rising from the mold. W'ith a smaller perimeter for the same cross sectional area a less rapid chilling effect will occur. Therefore the rapidity with which any vent metal will chill and therefore seal the ingot is controllable in the designf The fountain 19 is preferably of cast iron or cast steel. It is to be kept liberally coated with slurry, or other non-conducting wash. after the usual practice. Since the object of the fountain is to guide the metal runningfrom the ladle into the runner channel 17 lit) bottom outlet should be of a similar shape to the opening 17 in the runner tile so that the fountain and the runner tile channel will form one smooth passage for the fluid metal. hen the shape of the runner channel is as described herein later the outlet of the fountain will have to be particularly placed so as tomeet the shape of the runner channel. When the fountain is in this position that side 20 of the fountain which is towards the cover is to be so formed as to come in contact with the cover for some distance. In this contact plane is formed a continuation of the previously described vent from the mold. One side of this continuation is formed by the cover, and the others by the side of the fountain which is set up against it. Thus the completed vent is formed in two parts, a lower section between the cover and the tile and an upper section between the cover and the fountain. The top of this v completed vent is nearly as high as the highest point of the fountain and higher than the fluid metal stands in it, therefore, no overflow can occur from ferrostatic pressures alone. Overflows due to rising or wild steel are to be prevented by the chilling action of the vent on any metal rising through it and this, as previously stated, may be largely controlled in the design. The total cross sectional area of the vent is to be such as to give the necessary relief for the mold gases. The first effect of the entering hot metal during the pouring operation is to rapidly expand the air and gases in the mold cavity and this results in a mold blow as the gases pass through the vent. After this stage, which is but momentary, there is simply a slow displacement of the mold gases by the infiowing metal.

In amold made as herein described the entire outside of the ingot, with the exception of that part in contact with the runner tile, is chilled. To reduce this non-chilled area to the minimum it is therefore desirable that the runner tile be made as narrow, with reference to the width of the ingot, as possible. This may be accomplished by not making the runner channel 17 round but of an oval form with the narrow dimension in .the. direction of the width of the ingot. This will reduce. the total width of tile required for a given cross sectional area of runner channel.

.The runner tile disclosed in this application is not claimed herein, but forms the subject matter of a divisional application.

Having thus described my invention, what I claim is:

1. A mold for casting horizontal steel ingots, comprising a stool having on one end thereof a member angularly disposed to the fiat base of the stool, in combination with an open ended open sided body portion adapted to set on said base with the open side of the body closed by said flat base and with the angularly disposed member closing the open end of the body portion.

2. A. mold for casting horizontal steel ingots, comprising a stool having on one end thereof a member angularly disposedto the base of the stool, means in. said member to support a runner tile, in combination with an open ended trough-like body portion adapted to be inverted on said base and with the. angularly disposed member closing the open end of the body portion.

3. A mold for casting horizontal ingots, comprising a stool having on one end thereof a member angularly disposed to the base of the stool, in combination with an open ended trough-like body portion adapted to be inverted on said base and with the angularly disposed member closing the open end of the body portion, and means to clamp said body portion against said member.

4. A mold for casting horizontal ingots, comprising a stool having on one end thereof a member angularly disposed to the base of the stool, means in said member to support a runner tile, in combination with an open ended trough-like body portion adapted to be inverted on said base and with the angularly disposed member closing the open end of the body portion, and means to clamp said body portion against said member.

5. A mold for casting horizontal steel ingots comprising an inclined stool, a closure member mounted on one end of said stool, an open ended trough-like body adapted to set .on said stool and with the closure member adapted to close one end of the body, and a runner tile set in said closure member.

6. A mold for castin horizontal steel ingots comprising an inc ined stool, a closure member mounted on one end of said stool,

an open ended body adapted to set on. said stool and with the closure member adapted to close one end of the body, a gas outlet between the closure member and the end of the body, and a runner tile set in said closure member.

7. A mold for casting horizontal steel in;- gots comprising an inclined stool, a closure member mounted on one end of said stool, an open ended trough-like body adapted to set on said stool and with the closure member adapted to close one end of the body, and a runner tile set in said closure member and against the body member so that the body member holds said tile in place.

8. A mold for casting horizontal steel ingots comprising an inclined stool, enclosure member mounted on'one end of said stool. an open ended body adapted to set on said stool and with the closure member adapted to close one end of the body, a gas outlet between the closure member and the end of the body, and a runner tile set in said closo that the body member holds said tile in place.

9. A mold for casting horizontal steel ingots comprising a stool, a closure head on one end of said stool, an open ended troughlike body portion adapted to be mounted in inverted position on said stool, said closure head being provided with a wedge shaped opening adapted to receive a suitable runner ti e.

10. A mold for casting horizontal steel ingots comprising an L-shaped stool, an open ended body portion adapted to be mounted on said stool, the vertical arm of said stool being provided with a wed e shaped opening adapted to receive a suitabde runner tile.

11. A mold for casting horizontal steel ingots comprising a stool, a closure head on one end of said stool, an open ended trough-like body portion adapted to be mounted on said stool, said closure head hea ing provided with a wedge shaped opening adapted to receive a suitable runner tile' said runner tile being adapted to strip from said stool when the ingot is raised from the stool.

12. A mold for casting horizontal steel ingots comprising an L-shaped stool, an open ended body portion adapted to be mounted on said stool, the vertical arm of said stool being provided with a wedge shaped opening adapted to receive a suitable runner tile said runner tile being adapted to strip from said stool when the ingot is raised from the stool.

13. A device for castin horizontal steel ingots comprising the com ination of an inclined stool, a closure head on the upper end of said inclined stool, a body portion havingan open end and adapted to set on said stool in such manner that the closurehead closes said openend, said closure head being provided with a wedge shaped opening to receive a suitable runner tile, and a fountain adapted to be mounted over said opening.

14. device for casting horizontal steel ingots comprising the combination of an inclined stool, a closure head on the upper end of said inclined stool, a body portion having an open end and adapted to set on said stool in such manner that the closure head closes said open end, said closure head being provided with a wedge shaped opening to receive a suitable runner tile, a multi-part wedge shaped runner tile adapted to set in said opening, a fountain adapted to be mounted over said opening.

15. A device for casting horizontal steel ingots comprising the combination of an inclined stool, a closure head on the upper end of'said inclined stool, a body portion having an open end and adapted to set on said stool in such manner that the closure head messes closes said open end, said closure head being provided with a wedge shaped opening to receive a suitable runner tile, a multipart wedge shaped runner tile adapted to set in said opening, means to clamp said bodyagainst said head, a fountain adapted to be mounted over said openin 16. Adevice .for casting honzontal steel ingots comprising in combinatidn a stool having an integral closure head on one end thereof, a body portion having an open end and an open side,'said body portion being adapted to set on said stool in such manner that the closure head closes the end of said body portion and the base of the stool closes the open side, an abutment on said stool, and wedge means forholding said body portion against the closure head.

17. A device for casting horizontal steel ingots comprising in combination a stool having an integral closure head on one end thereof, a body portion having an open end and an open side, said body portion being adapted to set on said stool in such manner that the closure head closes the end of said body portion, a multi-part runner adapted to be clamped in place in said head by said body portion, an abutment on said stool, and wedge means for holding said body portion against the closure head.

18. A device for casting horizontal steel ingots comprising in combination a stool having an integral closure head on one end thereof, a body portion having an open end and adapted to set on said stool in such manner that the closure head closes the end of said body portion, a multi-part runner adapted to be clam d in place in said head by said body portion, sand grooves in the sides of the runner tile whereby the tile is not keyed down by metal and leaves the head when the ingot is lifted, an abutment on said stool, and wedge means for holding said body portion against the closure head.

19. A device "for casting horizontal steel ingots comprising in combination a stool provided with a closure head, a body portion having an open end and with a chill wall extending upwardly adjacent said open end, and a fountain adapted to set against said chill wall and on said closure head.

20. A device for casting horizontal steel ingots comprising in combination a stool provided with a closure head, a body portion having an open end adapted to be closedby said closure head. a runner tile in said head, and a fountain adapted to set on said closure head. i

21; A device for casting horizontal steel ingots comprising in combination a stool provided with a closure head, a body portion having an open end adapted to be closed bysaid closure head. a runner tile in said head, a gas outlet in the side of the maaeoa runner tile, and a fountain adapted to set on said closure head.

22. A device for casting horizontal ingotscomprising a stool having a closure head on one end thereof, an open ended troughlike body portion adapted to set on said stool with the head closing the open end thereof, a wedge shaped opening in said closure head, a multi-part; wedge shaped tile setting in said opening, and a fountain over said runner tile.

23. A device for casting horizontal steel ingots comprising .a stool having a closure head on one end thereof, an open ended body portion adaptedto set on said stool with the head closin the open, end thereof, a Wedge shape closure head, a multi-part wedge shaped tile setting in said opening, sand groove channels between the sides of the runner and the walls of the opening, and a fountain over said runner tile.

24. A device for casting horizontal steel ingots cdmprising a stool having a closure head on one end thereof, an open ended body portion adapted to set on said stool opening in said side wall of the tile, and a fountain over said runner tile.

25. A device for casting horizontal ingots comprising afbody portion, a fountain adapted to abut against said body portion,

and'a gas outlet between said fountain and said-body portion.

26. A device for casting horizontal steel ingots comprising a stool provided with a closure head, a body portion comprising an open inverted trough adapted to set on said stool; said body. portion being provided with an upwardly extending chill wall, a runner tile in said closure head, a fountain adapted to set over said runner tile, and a gas outlet between said fountain and said chill wall.

27. A device for casting horizontal steel ingots comprising a moldbody having a substantially vertical chill wall, a fountain adapted to set adjacent saidchill wall, a

- gas outlet between said chill wall and said fountain, and a runner tile leading from said fountain into the matrix of said body portion. 28.- A ing a flat base stool with a closing member at one end, and an inverted open-sided open-ended body set on said stool wherebv said side and end are closed by said stool and member respectively.

RAY G. COATES.

mold for casting ingots compris-

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