RU2525U1 - DEVICE FOR OBTAINING CONTINUOUS HOLLOW BIMETALLIC Billets - Google Patents

Abstract

A device for producing continuously cast hollow bimetallic billets, comprising a casting ladle with a glass, a water-cooled mold with a rod, a drum with a tape, characterized in that the mold is made with two vertical walls mounted with the possibility of reciprocating movement, and two walls inclined in the upper part, installed with the possibility of rotational movement, the device is additionally equipped with a casing installed in the mold coaxial to the rod, made in in the form of a truncated cone with grooves on the outer surface, while the outer surface of the casing is parallel to the walls of the mold, its height is equal to the height of the part of the mold designed to fill it with liquid metal, and springy plates are mounted between the rod and the casing.

Description

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DEVICE GIVEN RETRIEVING NON-EXTREMELY

Effi / lETAJDffl4ECKMX BILLET

The utility model relates to foundry1 (lu production, in particular to devices for producing continuously cast billets.

A device for centrifugal casting of pipes, containing metal cooled molds, a chute with a sewing device and a rod / 1,2 /,

The disadvantages of the device for centrifugal casting of pipes are the relatively large rejects of workpieces by hot cracks, the development of a counter (| crystallization during the solidification of the workpiece and increased contamination of the metal from the inner surface when casting large castings. In addition, the device for centrifugal casting, it is possible to obtain pipes of only a limited length, and also periodic cutting of the machine does not allow to increase the productivity of the installation.

at 2.2 Oe 11 /

A device for semicontinuous vertical

pipe casting, containing a sprue system, outside} knsh1 and internal molds, a core, a connector and table lowering system / 3.4 /.

The disadvantage inherent in the device for semi-continuous vertical pipe molding is as follows: 1. Rigid requiring casting technology, 2. The presence of cold and hot cracks, gas sinks.

3. Limited pipe wall thickness of 7-30 mm.

A device for producing a bimetallic tape containing a container with crimping and straightening rolls, mechanisms for separately feeding tapes into the container, and a system for providing an oxidizing atmosphere in the container / 5 /.

The disadvantages of the device for producing bimetallic tapes are the need for additional forced heating in the container of the connected metals, the impossibility of obtaining blanks of arbitrary shape and thickness.

Closest to the proposed utility model is a device for continuous casting of bimetallic billets, containing two molds of different cross-sections, two intermediate drainage ladles with nozzles and metering devices, mechanisms for drawing the blanks / 6.7 /.

The disadvantages of the device for continuous casting of bimetallic billets, in addition to the disadvantages inherent in semi-continuous vertical pipe casting, are additionally as follows:

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Tse d: the metal ear.

2, Impossibilities to obtain free-form blanks of arbitrary shape.

 The inventive device is aimed at creating a high-performance & resource-saving process for producing continuous cast bimetallic billets.

The technical result obtained by the implementation of the inventive device is as follows:

1, Improving the productivity of the process of getting along. bimetallic workpieces, the reliability of the device.

2. Reducing the cost of electricity needed to implement the process of obtaining blanks.

H. Improving the surface quality of the resulting bimetallic billet.

4. Obtaining blanks of arbitrary shape and thickness.

The inventive device is characterized by the following essential features.

Restrictive signs: pouring ladle with a glass; water cooled mold; kernel; drum with tape.

Distinctive features: the mold is made with two. they have vertical walls, making a reciprocating movement and two walls inclined in the upper part, making a rotational movement; a casing mounted coaxially to the shaft; the rod is made in the form of a truncated cone with grooves on the outer surface; the outer surface of the casing is parallel to the walls of the mold; the height of the casing is equal to the height of the part of the mold intended to be filled with liquid metal; between the rod and the casing are mounted

pru} long plates.

A causal relationship between the set of essential features of the claimed device and the achieved technical result is as follows.

Further, in the crystallizer of the vertical walls making reciprocating motion, the melt does not weld to the walls and reduces the force required to push the metal down the mold. This reduces the drive power of the mold, and accordingly the energy consumption. The quality of the outer surface of the workpiece is improved.

The implementation of the two walls of the mold oblique in the upper part and performing a rotational motion during operation, provides a condition for trapping, compressing and pushing the metal down the mold. At the same time, there is no need for an additional device for pulling the workpiece, and accordingly, the time spent on servicing the device is reduced, and the reliability of its operation is increased.

In vertical and inclined in the upper part of the walls of the mold made vertical through channels for supplying cooling water. Water coming from the collectors into the channels of the walls and leaving them, further cools the workpiece at the outlet of the mold.

The presence of a casing installed coaxially in the mold allows the metal strips to be fed into the middle of the mold without contact with liquid metal.

The execution of the eraser in the truncated cone, on the one hand, facilitates the conditions for the introduction of metallic

tapes due to the smaller feed angle, and on the other hand, allows you to adjust the distance between the surface of the rod and Kosyxa when feeding tapes of different thicknesses.

The presence on the outer surface of the shaft of the milled grooves of a given size and configuration allows them to feed tapes into the compression zone of the mold in a strictly specified direction. As a result, skewing of the tapes is excluded. In addition, the implementation of the grooves eliminates the leakage of the poured metal over the tape.

Performing the outer surface of the goat’s parallel to the cTeHKaiii of the mold equalizes the cooling and compression of the metal along the mold height by creating a layer of liquid metal along the perimeter of equal thickness.

The manufacture of a height equal to the height of the part of the mold designed to fill it with} sweeping scrap eliminates the possible deformation of the casing and its overlap of metals in the deformation zone.

The installation between the rod and the casing of the springy plates eliminates the possible bending of the tapes before they enter the metal compression zone.

Figure 1 and 2 shows the appearance of the inventive device for producing continuously cast hollow bimetallic billets.

The inventive device in figures 1 and 2 consists of a casting bucket 1 with glasses 2, supports 3 for fastening the rod 4 and ColdPS 6, input tapes 5 with drums 10, spring plates 7, grooves 8, water-cooled mold 9, vertical 11 and inclined in the upper parts of the walls 12.

Letters A, B and C in figure 1, respectively, are indicated: A is the height of the zone of the hard metal thrower in the cristo-reader; B-height of the area about} cation of metals; C-height of the calibration section.

The operation of the device is as follows. Previously, into the mold 9 through the casing 6 along the grooves 8 sterusha. 4, the tapes 5 are started from 6apa6aiiOB 10 to the calibration section C, into which a seed is additionally inserted, which ensures adhesion to the filled metal.

Liquid metal from the bucket 1 through the immersion cups 2 enters the space formed by the walls of the mold 9 and the outer surface of the casing 6, mounted on adjustable rods on the support 3, After filling the area of the circumference B with metal, the mold is turned on. In this case, the vertical walls 11 make a reciprocating movement, and the inclined in the upper part of the wall 12-rotational movement with compression of metal and tapes about. Simultaneously with the operation of the crystallizer, the drive of the drums 10 and the feed 5 in the grooves 8 of the rod 4 is turned on. To ensure uniform compression of the hardened metal in zone B, the hard metal fills zone A and is constantly maintained in it at a given height. In the process of squeezing the liquid metal and strips 5 between the wall 11 and 12 with cTepjmeM 4, the formed bimetallic workpiece is pushed to the calibration section C of the mold, where the workpiece finally acquires the outer and inner surfaces.

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USAGE OF USED SOURCES

1.A.S. 1412887 ССР, МТ В 22 Д 13/02. Centrifugal matzna for pipe casting / Yu.K. Gontarev, Yu.M. Mikhailov, B.A. Iskra and others - Publ. 30.07.88. Bull. 28.

2. Sterling E.D. , Tsshrkun O.F. , Shrzoyan G.S., Soloviev Yu.G. Centrifugal suspension casting of steel pipes // Casting using inoculators. Kiev: IPL AS USSR, 1981.-S.87-93.

3. Pipe production / B.D. Khakhalin, V.I. Seleko, A.N. Smolyakov, etc. M.: Metallurgy, 1977.244 p.

4.Tutov Vkhl., Grinberg V.A. , 3emskov I.V. Vertical continuous casting of blanks // Foundry. 1983. 4.- P.28-29.

b.Rabkin D.M., Ryabov V.R. Welding of alzalinium and its alloys with steel and copper. M.: Mechanical Engineering, 1965.- 96 p.

6. Special casting methods: Handbook / V.A. Efimov, G.A. Anisovich, V.N. Babich and others. - M.: Engineering, 1991.-736 p.

7.Medovar B.I. Metallurgy yesterday, today and tomorrow. 2nd ed., Ext. and revised / Ed. G.A. Boyko.-Mev: Science, Dumka, 1990.- 192 p.

Claims (1)

A device for producing continuously cast hollow bimetallic billets, comprising a casting ladle with a glass, a water-cooled mold with a rod, a drum with a tape, characterized in that the mold is made with two vertical walls mounted with the possibility of reciprocating movement, and two walls inclined in the upper part, installed with the possibility of rotational movement, the device is additionally equipped with a casing installed in the mold coaxial to the rod, made in in the form of a truncated cone with grooves on the outer surface, while the outer surface of the casing is parallel to the walls of the mold, its height is equal to the height of the part of the mold designed to fill it with liquid metal, and springy plates are mounted between the rod and the casing.