JPS6361091B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to an apparatus and method for continuously extruding metal from a granular, powdered or solid feed material, the apparatus comprising: (a) arranged to be rotated by a drive device during operation; (b) a rotatable wheel member having a circumferential groove which is rotatable and continuous around the periphery of the wheel member; a cooperating shoe member having a portion projecting radially partially into said groove with a working gap and providing a closed passage in said groove wall extending circumferentially of said wheel member; (c) being disposed at an inlet end of said passageway so as to cause feed material to enter said passageway at said inlet end, thereby engaging and frictionally engaging said wheel member as it rotates in the opposite direction towards an outlet end of said passageway; (d) carried by said show member and projecting radially into said passageway at said outlet end thereof, thereby being frictionally conveyed in said groove by said wheel member; (e) an abutment member carried on said shoe member and impeding the passage of feed material conveyed to said passageway at said outlet end thereof, thereby generating an extrusion pressure in said passageway at said outlet end thereof; a die orifice opening from the orifice through which, when driven, feed material conveyed and frictionally compressed within the groove by rotation of the wheel member is continuously compressed and extruded into the It includes a die member that is delivered through an exit hole into the shoe member. The present invention particularly relates to a method of manufacturing rotatable wheel members for use in rotating, friction-type, continuous extrusion equipment. In operation of such an extrusion device, the parts forming the passageway adjacent to the outlet end thereof are subjected to extremely high applied loads and extremely high applied temperatures. Thus high stresses (mechanical and thermal)
Of the parts subjected to the greatest wear or damage, the parts on the abutting member, the die member and the stationary feed engaging parts of or associated with the stationary shoe member, etc. It is a stationary part that supports the various parts of In order to provide better accommodation against worn or damaged surfaces and parts, the abutment member and the die member as well as their supporting parts are separate replaceable parts that are rigidly but removably attached to the stationary shoe member. It is built as. To reduce the operating temperature of such replaceable parts, these parts have internal cooling passages;
Cooling water is circulated through this. However, such cooling means are not very effective for the following reasons: (i) these parts are small in size and the mechanical loads to which they are subjected are high; The size of the cooling passages and their proximity to the heat source are severely constrained so that the cooling water cannot extract heat at an adequate rate, and (ii) the materials used in such small components (such as high speed steels) have relatively low heat transfer properties. Some cooling water does not dissipate heat enough, so
The plastic flow at the tip of the abutment member becomes hot at its free end, where it connects to the bottom of the groove in the wheel member, due to the excessive rise of the abutment member. This severely limits the service life of the abutment element and significantly limits the operating time of the device between successive instances in which the abutment element must be replaced. This reduces the amount of extruded product produced due to downtime while the equipment is not operational. Furthermore, when used over a long period of time, there is a risk that the extrusion die may overheat to such a high temperature that its mechanical strength is impaired, creating a risk of deformation and/or increased wear of the die. As a result of experiments with various different devices for the internal cooling passages, especially in the abutment members, very satisfactory results have been obtained, with one completely different device for the cooling of the abutment members. Ta. Such different devices, and various modifications thereof, are described in the original British patent application no.
-8309836 (filed April 12, 1983), from which this application has been divided. The intended use of the invention of that original application is to develop such rotary, friction-type, continuous extrusion equipment with long operating life for long periods of time and for parts of the equipment that are subjected to high mechanical and thermal stresses. It becomes possible to operate. The beneficial results obtained from the use of the invention (original application) can be enhanced by its use in combination with the invention of this divisional application. According to the present invention, a method for manufacturing a rotating foil member used in a rotary or friction-type continuous extrusion device includes: (a) a radial foil member formed continuously in the circumferential direction on a cylindrical circumferential portion; (b) producing a wheel having an extending groove and fixing in said groove an annular metal band for movement with the circumference of said wheel; (b) a bearing of said apparatus by a drive motor of said continuous extrusion apparatus; (c) pressing a tool having an end of a predetermined shape against said annular metal band fixed to said wheel, and then while continuously rotating said wheel; gradually advancing the tool in a radial direction;
Thereby, the method includes the step of machining a working groove having a predetermined appropriate cross-sectional shape on the inner circumferential portion of the annular metal band, and the inner circumferential portion of the annular metal band having the working groove is formed on the wheel member. having a configuration substantially equivalent to the configuration of a predetermined feed metal feedstock to be extruded in use in said continuous extrusion device comprising: a predetermined shape of said end of said tool; , used in the continuous extrusion device to close an end of an arched passage formed in the working groove by a shoe member of the continuous extrusion device cooperating with the cylindrical inner circumference of the wheel member; The shape is substantially equivalent to the predetermined shape of the abutting member. It is desirable that the annular metal band fixed to the wheel groove has a good heat conduction relationship with the wheel. the annular metal band fixed to the wheel groove comprises a first metal band disposed concentrically with the wheel in the wheel groove and surrounded within a sleeve-shaped second metal band; Said second
The metal band has the working groove and is in a good thermal conductive relationship with the first metal band. the annular metal band secured to the wheel groove includes a first metal band disposed concentrically with the wheel at the bottom of the wheel groove and surrounded within a second metal band; The first metal band has a good thermal conductive relationship with the second metal band, and the second metal band has the working groove. The first and second metal bands each have a synergistic thermal conductivity and specific heat per unit volume that is greater than that of the wheel material. Here, "synergistic effect between thermal conductivity and specific heat"
is the thermal conductivity [Watt/m. 〓] and specific heat [J/m ³ ],
It refers to the overall heat conduction effect including the effects of both on the volume of the object. Furthermore, it is advantageous that the synergistic effect of the bands of the first metal is greater than the synergistic effect of the bands of the second metal. In carrying out the method of the invention, the wheel is rotatably mounted on the continuous extrusion device and rotated within the device, and the tool is an abutment member constituting the device, and the abutment member is As the wheel rotates, it is advanced radially inwardly into the annular metal band. Other aspects and advantages of the invention will be apparent from the following description and claims. The invention will now be described with reference to the accompanying drawings with reference to embodiments of a continuous extrusion device. In FIGS. 1 and 2, the illustrated apparatus is
carried in bearings (not shown) and coupled to an electric motor (not shown) via an interlock (not shown), thereby providing a speed range of selected speeds within the range of 0 to 20 RPM (greater speeds). is also acceptable)
In operation, the rotatable wheel member 10 is coupled via an interlock (not shown) to an electric drive motor (not shown) and carried in a bearing (not shown) to be driven. include. This wheel member has a groove 12 surrounding its periphery.
A radial cross-section of this groove is shown in FIG. The deep part of the groove has parallel annular sides 14 that connect with the radial bottom surface 16 of the groove.
The tapered mouth portion 18 of the groove forms an inverted frustoconical surface 20,22. A stationary show member 24 carried on a lower pivot pin 26 extends around approximately one quarter of the circumference of the wheel member 10 and cooperates closely therewith. The shoe member is held in the operative position shown in FIG. 1 by a retractable stop member 28. The shoe member includes a centrally (axially) and circumferentially extending protruding portion 30 with a slight axial or lateral clearance 32 on either side thereof;
34 and partially protrudes into the groove 12 of the wheel member 10. This projecting portion 30 is constituted in part by a series of replaceable inserts and includes a radially oriented abutment member 36, an abutment member support 38 downstream of the abutment member, and an abutment member support 38 downstream of the abutment member. a die block 40 (having an extrusion die 42) upstream of the part;
It includes arc-shaped wear-resistant members 44 on both upper sides of the die block. Upstream of member 44 , an integrally formed inlet portion 46 of the shoe member completes an arcuate passageway 48 that extends downstream to a front face 54 of abutment member 36 and is vertically oriented below feed material hopper 52 . The feed material inlet passageway 50 extends around the wheel member. This passageway has a radial cross section defined in FIG. 2 by the annular sidewall 14, the bottom surface 16 of the groove 12, and the inner surface 56 of the central protruding portion 30 of the shoe member 24. the abutting member 36, the die block 40,
Die 42 and arc member 44 are all constructed of a suitable hard, wear-resistant metal, such as high speed steel. The shoe member has an exit hole 58 that aligns with a corresponding hole formed in the die block 40 through which the extruded metal product 61 (e.g. round wire) is delivered from the orifice of the die 42. . As the wheel member 10 rotates counterclockwise in FIG. 1, the powdered feed material introduced from the hopper 52 via the inlet passage 50 into the inlet end of the arcuate passage 48 is moved by the moving groove surface of the wheel member. The solid metal mass is then conveyed counterclockwise in FIG. form.
This solid metal mass is continuously pushed against the abutting member under a large pressure by the frictional resistance of the moving groove surface. This pressure is sufficient to force the metal mass through the orifice of the extrusion die, thereby providing an extruded product which is discharged through holes 58 and 60 in the shoe member and die block. In a special case, this production product includes bright copper wire made from small cut pieces of wire that constitute the feed material. A water pipe 62 mounted about the lower end of the shoe member 24 has an outlet nozzle 64 located and fixed on the side of the shoe member located adjacent the wheel member 10. This nozzle is connected to the groove 12 of the wheel member 10 when the pipe is supplied with cooling water.
The jet of water is aligned to direct the jet of water directly onto a downstream portion of the abutment member located within and abutting the abutment member.
Thus, the apex of the free end of the abutment member (this is where most of the heat is generated during operation) and the joint surface and groove of the wheel member are exposed to the overhang of the jets directed at them. directly cooled by the water flow. The die block 40 has internal water passages (not shown) and a supply of cooling water for hanging the product leaving the die and extracting some of the heat retained within the product. However, the abutment member is not provided with such an internal passage. Thus, the strength of this member is not reduced by providing internal cooling means to cool the member. If desired, cooling of the device may be accomplished by providing a cooling water sprinkler 65 on the hopper 52 to feed a quantity of cooling water into the precision passageway 48 along with the powdered feed material. It will be improved. In FIG. 2, the solidified metal mass in the extrusion area adjacent die block 40 is indicated at 66. From this metal mass, the product is extruded through an extrusion die 42 by the pressure in this area. This pressure also acts to force a quantity of metal between the side walls of the groove and each opposing surface of the die block and abutment member. This extruded metal is
Gradually, the material accumulates radially to form scrap metal pieces or "burrs." A plurality of laterally oriented teeth 70 are provided to prevent these pieces of scrap metal from growing too large to be handled or controlled.
are fixed to the diverging walls 20, 22 forming the mouth 18 of the groove 12. The teeth are evenly spaced around the wheel member, with teeth on one wall facing teeth on the opposite wall. If desired, teeth on one wall may be staggered to alternate with teeth on the other wall. In operation, the sloped surface 72 of the die block 40 deflects the extruded scrap piece 68 obliquely into the path of each set of moving teeth 70. Interdiction of this scrap piece 68 by the moving teeth causes the scrap piece to cut or shred the extruded metal within the gap.
These scrap pieces are thus removed as soon as they have moved a sufficient distance in the radial direction, blocked by the moving teeth. In this way "burrs" are prevented from reaching an unmanageable size. The teeth need not be sharply shaped and may be fixed on the wheel member 10 in any suitable manner, for example by welding. Figures 3 and 4 show other teeth secured in a similar manner to other types of suitable surfaces of the wheel member 10. In these different types of devices, the wheel member 10
The outer surface of cooperates with a correspondingly shaped surface of the cooperating shoe member 24, thereby providing burr control in a particularly desired manner. In FIG. 3, the flash is grown in a purely transverse or axial direction until it is stopped by radially projecting teeth, where it is shredded from the metal extruded into the associated gap. In FIG. 4, the scrap pieces are grown diagonally (as in FIG. 2) but are stopped by teeth projecting radially from the surface of the wheel member 10. For various reasons that will become clear from the explanation below, the extruded product from the above continuous extrusion device (wire 6
It is desirable, and sometimes even necessary, to process 1) in extruded product processing equipment prior to delivery to product collection and storage equipment. Moreover,
It may be desirable or advantageous to process the extruded product while it is maintained at elevated temperatures from the continuous extrusion process in which it was produced. Such processing equipment can, for example,
An extruded product can be provided with a larger diameter and/or a more uniform outer diameter or gauge. Such processing equipment may also be used to provide finished products of different gauges and/or tolerances from the same continuous extrusion product at different times. For such purposes, the processing equipment includes a single drawing die through which the extruded product is first passed and then pulled to tension to achieve the desired size, tolerance and/or quality. The above-mentioned finished product is provided. The use of such processing equipment to process extruded products has long been a problem since the continuous extrusion die 42 of the continuous extrusion equipment can be discarded due to excessive enlargement of the die hole due to wear during use. Make it available for use for a period of time. Additionally, such processing equipment allows for easy and quick replacement of its dice;
Production products of different gauges, tolerances and/or qualities can be manufactured in place of each other. An example of a continuous extrusion system that combines a continuous extrusion device and an extruded product processing device will be described below with reference to FIG. The system shown in FIG. 5 includes a continuous extrusion apparatus 100 as described above, which can be modified, if desired, as described below, and the copper wire 102 produced by this apparatus is The wire is drawn through a sizing die 104 (reducing its gauge to the desired low value) by a device 106 and the wire passes around the tensioning pulley device multiple times before passing through an accumulator 108 to a coil winder 110. . The pulley device 106 includes an electric torque motor 112
The energization of this motor is provided and controlled by controller 114 . The control device includes (a) an extrusion device 100 and a sizing die 10;
responsive to a first electrical signal 116 obtained from a wire tension sensing device 118 that engages the wire 102 at a position between 4 and 4 and provides an electrical signal due to the tension in the wire 102 as it exits the extrusion device 100; and (b) responsive to a second electrical signal 120 obtained from a temperature sensor 122 that measures the temperature of the wire 102 as it leaves the extrusion device 100. The controller 114 controls the second (temperature) signal 12
0 in its output circuit in response to the second
Function generator 1 for providing a third electrical signal representing the yield stress tension for a particular wire 102 at a particular temperature represented by the (temperature) signal.
24. The third electrical signal 126 is sent as a reference signal to a comparator 128 (also forming part of the control device), where the first
(Tension) signal 116 is compared to the third signal (Yield Stress Tension). The output signal of the comparator constitutes a signal for controlling the energization of the torque motor. In operation, the torque motor increases the tension of the wire leaving the extruder 100 to a value of a predetermined magnitude that is less than or equal to the yield stress tension for a particular wire at a particular temperature when the particular wire leaves the extruder 100. is energized to a magnitude sufficient to maintain it. Although the above description describes a structure in which a water jet is used to cool the tip of the abutting member, a jet of other cooling liquid (or even cooling gas) can be used instead of water. Appropriate liquefied gases can also be used. Regarding the burr removal teeth 70 in the above description, the following matters are considered: (a) The shape of the leading edge (cutting or breaking edge) of each tooth is not important as long as it can perform the desired burr removal function; (b) The working distance between the tip of each tooth 70 and the adjacent opposing surface of the stationary shoe member 24 is also large and unimportant, with this dimension not exceeding 1 mm to 2 mm depending on the specific design of the device. , (c) the greater the number of teeth spaced around each side of the wheel member 10, the smaller the length of the "beam" removed from each tooth; (d) the teeth are (e) Any conventional method may be used to secure the teeth to the wheel member. The ability of this device to deliver an acceptable production product from a bulk granular or powdered feed material is determined by the arcuate shape within the pressure-generating zone located immediately forward (upstream) of the forward surface 54 of the abutment member 36. The radial depth (or height) of passageway 48 is
A considerable improvement can be achieved by erasing it relatively rapidly in the direction of rotation (as shown in the figure) in an appropriate manner. A removable die block 40 is disposed circumferentially coextensive with that area, and said progressively decreasing shape of the radial depth of the arcuate passage is a die block facing the bottom of the groove 12 of the wheel member 10. This is achieved by appropriate shaping of the surface 40A. The surface 40A of the die block is preferably shaped so as to obtain a feed metal flow pattern in the area when the device is operated that is very similar to that achieved when a solid feed material is used instead. Can be attached. In the preferred embodiment shown in the figures, this surface 40A comprises a planar surface that slopes at a suitably small angle tangent to the bottom of the groove 12 at the point where it contacts the abutment member 36 at its front face 54. This angle ideally corresponds to (a) the area of the abutment member exposed to the feed metal material at extrusion pressure, and (b) the radial cross-sectional area of the passageway 48 at the inlet end of said area (i.e. of the die block 40). (in a radial cross-section adjacent to the upstream end) of (i) the apparent density of the feed material entering the area at said inlet end thereof to (ii) located adjacent to the front face 54 of the abutment member 36 Equal to the ratio of the density of a fully consolidated feed material. In one preferred embodiment, the planar surface 40A of the die block is such that the area of the abutment member exposed to the feed metal material at the extrusion pressure is larger than the area of the passageway 48 at the inlet end of the zone (i.e. the upstream end of the die block). It is inclined at an angle equal to 1/2 of said radial cross-sectional area. If desired, in another embodiment groove 1
The surface of the die block facing the bottom of the die block 2 is sloped in the manner described above over only a major part of the circumferential length of the groove extending from said upstream end of the die block, and is immediately adjacent to the front face 54. The portion of the die block that lies above has a surface that lies parallel (or nearly parallel) to the bottom of the groove. The greater penetration of die block 40 into groove 12 obtained by said shaping of front surface 40A also provides increased physical resistance against undesired extrusion of flash-forming metal through gap 32. Therefore, the amount of feed metal material that tends to form such flashes is greatly reduced. moreover,
The entry of the die block into the groove 12 reduces (a) the total work exerted on the feed material, (b) the amount of flash generated, and (c) the bending moment exerted on the abutment member by the pressure metal. . Furthermore, the selection of a planar working surface 40A for the die block reduces the cost of manufacturing the die block. Although in the above description the wheel member 10 is driven by an electric drive motor at a speed within a defined range, other similarly functioning continuous extruders may use a hydraulic drive to maintain the proper operating speed. It acts on Instead of introducing additional cooling water into passage 48 via sprinkler 65, pot 52 and passage 50,
Such additional cooling water may be placed within the passageway at locations where the passageway is filled with particulate feed material but not completely solidified (e.g., in the shoe member 24).
(through a passageway 67 formed in). The highly effective cooling effect provided by this invention is due in large part to the fact that the wheel is located temporarily adjacent to the hot metal in an enclosed extrusion area upstream of the abutment member. The heat absorbed by a portion of the member is transferred from this hot zone to a cooling zone located downstream of the abutting member (by the action of both heat conduction and rotation of the wheel member), in which Since the cooling fluid is supplied in large quantities and flowed over a relatively large area of the wheel member passing through this cooling zone, it draws therefrom a high proportion of the heat absorbed by the wheel member in the hot extrusion zone. . In this cooling zone, access to the wheel element is less restricted and a relatively large surface of this element is freely available for cooling purposes. this is,
This is due to direct contact with extremely small and enclosed cooling surfaces (i.e., die blocks and abutment members) provided directly adjacent to the extrusion area in the parts of the shoe member that border this extrusion area. As previously mentioned, the cooling surfaces of these parts are severely limited by the need to preserve their mechanical strength and safely withstand the extrusion pressures exerted on them. The transfer of the heat absorbed by the wheel members to the cooling zone is greatly improved by using the wheel members of metal with good heat conductivity and good specific heat (per unit volume). However, since the wheel member is made of a physically strong metal (eg tool steel) for reasons of adequate mechanical strength, it has relatively poor thermal conductivity.
The ability of the wheel member to transfer heat to said cooling zone is thus improved by closely fitting said wheel member with an annular band of metal with good heat absorption and thermal conductivity, such as a steel band. greatly increased. Preferably, such a thermally conductive band is constituted by an annular band fixed around the periphery of said wheel member, at least in part, said circumferential groove providing said passageway 48. Preferably, the part of the wheel member is formed by a shoe member. If the extrusion of this machine is suitably made of a metal with good thermal properties, the heat-conducting band is made of the same metal (for example steel) as the extrusion. In other cases, said thermally conductive band is embedded within or overlaid on a second annular band, said second annular band being made of the same material as the extrusion product of said machine and said second annular band being made of the same material as the extruded product of said machine. These two bands are made of different materials and are contacted with the tip of the contact member. The metal used for the heat transfer band is selected to have a synergistic effect of heat conductivity and specific heat per unit volume that is higher than that of tool steel, and includes the following materials (the higher the value, the higher the above). (highly synergistic): copper, silver, beryllium, gold, aluminum, tungsten, rhodium, iridium, molybdenum, ruthenium, zinc and iron. The heat transferred from the extrusion zone to the cooling zone by such a thermally conductive band depends on the radial cross-sectional area of the band and increases as this cross-sectional area increases. Thus, for a given cross-sectional dimension measured transverse to the circumference of the wheel member, the greater the radial depth of said band, the greater is the rate at which heat is transferred by the wheel member to the cooling zone. . For said wheel member having an effective diameter of 233 mm and whose rotational speed is 10 RPM, said heat transfer band is made of copper with a U-shaped radial cross-section, and said wheel member extends from said extrusion area to said cooling area area. The abutment member 3 has a heat transfer rate of “R” and cooperates with the wheel member only by this rotation.
6 penetrates into this copper band, i.e. as the circumferential groove 12 changes in radial depth or distance.
Calculations were carried out as varying as the radial thickness "T" of the copper band remaining at the bottom of the copper band changes.
These calculations are based on the copper band having a generally circular interface in radial section with the adjacent part of the wheel member (tool steel). Thus, the radial cross-sectional area "A" of the copper band varies non-linearly with the radial thickness "T" of copper at the bottom of the groove 12.

[Table] In one example with such a wheel member, the radial thickness T of the copper band at the bottom of the groove 12 is 2 mm, the rotational speed of the wheel member and the wire of 1.4 mm diameter is 150 m/ When extruding at a speed of Approximately to the surface being cooled
Provides a jet velocity of 800m/min. This heat transfer rate results in a cooling zone with a heat transfer rate of approximately 2.3 kW as a result of being conducted through the heat transfer band.
As a result of the conduction of heat caused by the temperature gradient existing between the extrusion zone and the cooling zone through the parts of the adjacent wheel members and the abutment elements, approximately
The cold generation area was reached with a heat transfer rate of 2.3kW. This measured extraction rate of heat by the cooling water flowing in the cooling zone is approximately 1.9 kW, which was obtained in a conventional manner by flowing the cooling water through internal cooling passages formed in the abutment member. This shows a very good contrast with the maximum heat transfer rate of . FIG. 6 is a graph showing that the rate of heat transfer from the wheel members and abutment members in the cooling zone varies as the flow rate of cooling water supplied to the zone changes. The continuous extrusion apparatus described above with reference to the accompanying figures was actually tested using the copper heat transfer band described above, which band is indicated at 74 in FIG. 10 and for convenience shown in broken lines in FIG. (FIG. 2 further shows that if the copper band 74 is shown as a solid line, the line in FIG.
). The copper band has a U-shaped radial cross section, as shown at 74 in FIG.
The rounded bottom 16 of 2 and the parallel side walls of this groove extend halfway. Examples of wheel members 10 made by the method of the present invention are described below with reference to the respective circumferential groove cross-sections shown in FIGS. 7-9.
A solid annular band 76 of copper having a generally rectangular radial cross-section is mounted and tightened between cooperating steel cheek members 78 of said wheel members, thereby causing the drive shaft on which said cheek members are carried to be connected to said drive shaft. When driven by the motor, it is driven by the cheek member. The band 76, at least initially, has a small internal groove 76A that spans the tight joint between the two cheek members 78. This groove prevents any metal of the band 76 from getting between these cheek members during assembly of the wheel member 10. Complementary frustoconical surfaces 76B and 78B on the band and cheek members, respectively, facilitate assembly and disassembly of these parts of wheel member 10. The circumferential groove 12 is formed in the copper band by pivoting the shoe member 24 around the pivot pin 26 toward the periphery of the rotary wheel member 10, thereby causing the tip of the abutment member 36 to form a copper band. The copper band is brought into contact thereby causing the copper band to be machined progressively deeper to form the groove 12 therein. FIG. 8 is a variation of that of FIG. 7 above, in which the thermally conductive band includes a composite annular band 80, in this case a band of metal (such as copper) with good thermal properties (inner core material). ) 82 is surrounded by a band (sleeve) 84 of the same metal (such as zinc) that is being extruded by the continuous extrusion device in good thermal conductivity with this metal. FIG. 9 shows another variation of the variant embodiment of FIG. 7, in which the thermally conductive band includes a composite band 86, the radially inner annular band 88 having good thermal properties. with good thermal conductivity by means of a radially outer annular band 90 of the same metal (such as copper) having a It's wrapped. Metals that can be extruded by continuous extrusion equipment as described above are copper and its alloys, aluminum and its alloys, zinc, silver and gold. Various features of this disclosure not mentioned in the claims may be found in the same two UK patent applications no.
No. 8309836 (filed on April 12, 1983) and No.
No. 8302951 (filed on February 3, 1983) should be noted to constitute the gist of each claim of another patent application filed with the same right that also claims priority.

[Brief explanation of drawings]

FIG. 1 is a mid-level vertical section taken through the essential working part of the device;
2 is a cross-sectional view taken along the line - in FIG. FIG. 5 is a schematic block diagram of a system embodying the apparatus of FIGS. 1 and 2; FIG. 6 is a schematic block diagram of a system embodying the apparatus of FIGS. 1 and 2; FIG. Graphs showing changes in heat transfer coefficient with changes in cooling water flow rate obtained from tests on one device according to the present invention, FIGS. 7 to 9, are similar to FIG. FIG. 10 is a view similar to FIG. 1 showing a modification of the apparatus shown in FIGS. 1 and 2. 10...Rotary wheel member, 12...Groove, 1
4...Side part, 16...Bottom surface, 18...Mouth part, 2
0, 22... truncated conical surface, 24... shoe member,
26...Swivel pin, 28...Stop member, 30...
Projecting portion, 32, 34... Gap, 36... Contact member, 38... Contact support member, 40... Die block, 42... Extrusion die, 46... Inlet portion, 48... Arc-shaped passage, 50...Inflow passage, 52
...Hotsupa, 54...Front side, 56...Inner side, 5
8... Outflow hole, 60... Hole, 61... Extruded product, 62... Water pipe, 64... Nozzle, 65...
... Watering device, 66 ... Extrusion area, 68 ... Burr, 70 ... Teeth, 72 ... Inclined surface, 74 ... Copper band, 76 ... Annular band, 76A ... Inner groove,
76B...Truncated conical surface, 78...Cheek member, 78
A...Joint part, 78B...Truncated conical surface, 80...
Composite band, 82... Inner core material, 84... Sleeve, 86... Composite band, 88... Annular band,
90... circular band, 100... system, 10
2...Device, 104...Sizing die, 10
6... tension pulley device, 108... storage device, 11
0...Coil winding machine, 112...Torque motor,
114...control device, 116...first electrical signal,
118...Wire tension detection device, 120...Second
Electrical signal, 122...Temperature detection device, 124...
Function generator.

Claims (1)

[Scope of Claims] 1. A method for manufacturing a rotating wheel member used in a rotary, friction-type continuous extrusion device, which method includes: Wheel 10 having radially extending grooves formed by
and insert the wheel 10 into the groove.
(b) rotating said wheel 10 in a bearing of said device by a drive motor of said continuous extrusion device; (c) attaching a tool having an end portion of a predetermined shape to the annular metal band 7 fixed to the wheel;
6; 84; 90; and then, while the wheel 10 is continuously rotated, the tool is gradually advanced in the radial direction, thereby applying a predetermined proper shape to the inner circumference of the annular metal band. the inner periphery of the annular metal band 76; 84; the shape of the predetermined end of the tool is substantially equivalent to the shape of the predetermined feed metal stock to be extruded, and the shape of the predetermined end of the tool is such that, during operation of the continuous extrusion device, the shape of the predetermined end of the tool a predetermined portion of the abutment member used in the continuous extrusion device for closing the end of the arch-shaped passage formed in the working groove 12 by the shoe member of the continuous extrusion device cooperating with the circumferential portion; A method of manufacturing a rotating wheel member, characterized in that the shape is substantially the same. 2. The method of claim 1, wherein an annular metal band 76 fixed in the wheel groove is in good heat conductive relationship with the wheel. 3. An annular metal band 80 fixed in the wheel groove includes a first metal band 84 disposed concentrically with the wheel 10 in the wheel groove and surrounded by a sleeve-shaped second metal band 84. band 82
The second metal band 84 has the working groove 12 and the first metal band 82 has the working groove 12.
3. The method according to claim 1, wherein the method has a good heat conduction relationship with the method. 4. The annular metal band 86 fixed to the wheel groove includes a first metal band 88 disposed concentrically with the wheel at the bottom of the wheel groove and surrounded by a second metal band 90. 3. The first metal band 88 has a good heat conduction relationship with the second metal band 90, and the second metal band 90 has the working groove 12. Method described. 5. each of said first and second metal bands is larger than said wheel material;
5. The method according to claim 3, which has a synergistic effect between thermal conductivity and specific heat per unit volume. 6. The synergistic effect of the first metal band is
6. The method of claim 5, wherein the synergistic effect of the second metal band is greater. 7. The wheel is rotatably attached to the continuous extrusion device and rotated within the device, and the tool is an abutment member constituting the device, and the abutment member is configured to rotate when the wheel rotates;
7. A method according to any one of the preceding claims, wherein the method is advanced radially inwardly into the annular metal band.