JPS6361092B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention particularly relates to an apparatus for continuously extruding metal from a powdered or solid feed material, the apparatus comprising: That is, (a) a rotary wheel member arranged to be rotated by a drive device during operation, and a continuous peripheral groove formed in the circumferential direction of the rotary wheel member; and (b) said wheel member. a cooperating shoe member extending circumferentially around a portion of the periphery of the groove, the shoe member having a portion projecting radially into the groove with a small operating clearance from the sidewalls of the groove; (c) said shoe member portion forming with said groove walls a closed groove extending circumferentially of said wheel member; a feedstock injection device for causing flow into the wheel member thereby, upon rotation of said wheel member;
the feed material being frictionally conveyed by the wheel member toward an opposite outlet end of the passageway; (d) supported by the shoe member and projecting radially into the passageway at the outlet end; At its end it effectively closes said passageway, thereby blocking the passage of feed material frictionally conveyed into said groove by said wheel member, thus applying extrusion pressure to said outlet end of said passageway. (e) a die member supported by the shoe member and having a die orifice opening from the passageway at the exit; The feed material is compressed through the orifice and continuously forced out of the shoe member through the outlet hole during actuation of the wheel member. 1 generated during the operation of such continuous extrusion equipment.
One problem is that the passageway is provided near the outlet end of the passageway through a gap with the necessary working clearance between the side walls of the groove and the cooperating opposing surfaces of the shoe member portions projecting radially into the groove. It is a problem to control and deal with the undesired extrusion of metal (called flash) that occurs in a satisfactory and safe manner. If the extrusion is not well controlled, it will continuously produce waste chunks of metal with very large cross-sections and strengths. Such waste parts are difficult to control and dispose of, and have also proven to be somewhat dangerous. Additionally, the equipment must be stopped in order to remove the flash with a shear blade or saw. When using a split wheel member, such undesired extrusion of the waste member exerts a force that forces the two wheel member parts apart and widens the gap through which the undesired extrusion passes, thus preventing such undesired extrusion. Any widening of the gap will increase the thickness of the waste portion, and such widening will damage the vehicle component and/or the shoe component unless the occurrence of flashing is properly controlled. Furthermore, the scrap extruded metal present in this clearance gap increases the frictional force against the car member, so it is necessary to increase the torque that drives the car member, and furthermore, the friction between the car member and the shoe member that work together increases. Heat generated by the frictional and operating temperatures of the various parts of the machine is also added. Furthermore, in view of the size of the discarded member,
Also, in view of the difficulty in processing them,
Removal of these components requires frequent shutdowns of the device, as they cannot be safely handled or removed while the device is in operation. According to the invention, the wheel member comprises at least one tooth member on each side of the groove, the tooth member being such that, upon rotation of the wheel member, the waste member extends a predetermined distance from the groove. positioned and arranged to block waste material being pushed through the clearance gap on an adjacent side of the groove when
Interception of such a waste member by the tooth member causes a portion of the waste member to break from the device. Preferably, a plurality of such teeth are provided on each side of the groove, and the teeth are preferably evenly spaced around the wheel member. A tooth member on one side of the groove may be placed directly opposite a corresponding tooth member located on the opposite side of the groove, or a tooth member on one side of the groove may be placed directly opposite a corresponding tooth member located on the opposite side of the groove. The arrangement can also be staggered with respect to corresponding tooth members arranged in the. The tooth member projects radially from the wheel member and is adapted to intercept extruded waste members extending axially or transversely by cooperating opposing surfaces on the wheel member and the shoe member. It's getting old. Also, cooperating opposing surfaces on the wheel member and the shoe member, respectively, confine the extruded waste member so as to extend from the clearance gap in an oblique direction relative to the axis of rotation of the wheel member. in this case,
Each of the tooth members is arranged in a radial direction with respect to the wheel member;
Or aligned in the axial direction. According to one aspect of the invention, the shoe member portion extending radially partially into the groove:
a surface facing the bottom of the groove, the radial distance of the surface from the bottom of the groove (as defined by the abutment member) decreasing towards the outlet end of the passageway; Both are shaped to gradually decrease beyond a predetermined area near the abutment member, in which area the feed material is completely compacted and without any voids. With such a device, in said area:
When a free molecular or powdered feed material is fed into the passageway, the metal flow pattern is very similar to that of a solid feed material. Preferably, the shoe member portion comprises an insert adjacent to the abutment member and removably attached to the shoe member, which extends from the abutment member in a direction opposite to the direction of rotation of the wheel member. extending circumferentially toward said die member and having a surface facing the bottom of said groove, said surface preferably having a radial depth relative to said passageway, said surface having a progressively decreasing depth; Shaped. The surface of the insert consists of a plane inclined at a small angle tangent to the bottom of the groove. The plane is such that the ratio of the area of the abutment member touching the metal under the extrusion pressure and the radial cross-sectional area of the passageway at the inlet end upstream of the area is such that the area at the inlet end is said angle is substantially equal to the ratio of the apparent density of the feed material entering the feed material and the density of the fully consolidated feed material located in the vicinity of said abutment member. In one preferred arrangement, the plane is at an angle such that the area of the abutment member touching the metal is approximately half the radial cross-sectional area of the passageway at the inlet end of the zone. tilt. According to another aspect of the invention, in a continuous extrusion device of the above-mentioned type, the jet of cooling fluid is ejected from the nozzle directly from a downstream position of the abutment member towards the abutment tip. (i.e. on the side away from the slug of compressed metal located upstream thereof, i.e. against the front surface). This jet is thus directed to the part of the abutment member where most of the frictional heat occurs, so that the cooling fluid flows directly to the part of the abutment member which reaches the highest operating temperature. For such a device, it is not necessary to provide the abutment member with internal cooling passages, so that the ability to withstand strong mechanical loads on the abutment member is not impaired. Furthermore, there is even less reliance on the heat transfer properties of the material that makes up the abutment member. According to a further aspect of the invention, the continuous extrusion system has: (i) a continuous extrusion device for producing a continuous metal extrusion product; and (i) receiving the extrusion product exiting the extrusion device as it exits the extrusion device;
an extruded product processing device for processing it to alter one or several of its predetermined properties; (iii) a control system; (iii) a control system; , its control system has: (a) a temperature sensing device arranged to sense the temperature of the extruded product as it leaves the continuous extrusion apparatus and to provide a temperature reference signal in accordance with the sensed temperature of the extruded product; and (b) a traction device that senses traction on a length of extruded product extending between the extrusion device and the processing device and provides a traction feedback signal due to the sensed traction on that length of extrusion product; a sensing device; (c) a control device for controlling said pulling device, said control device being responsive to said temperature reference signal and said pulling feed bag signal, said length of extruded product being controlled by said extruding device; being arranged to automatically control said tensioning device in such a manner that, at a sensed temperature upon leaving said extruded product, a predetermined safety value below a yield stress tension of said extruded product is not exceeded; Become. Other features and advantages of the invention will be apparent from the following description and from the appended claims. One continuous extrusion apparatus embodying the invention will now be described by way of example and with reference to the accompanying drawings. Referring now to FIGS. 1 and 2, the apparatus shown here includes a rotating wheel member 10 supported in bearings (not shown) which, in operation, rotates at zero revolutions per minute. It is coupled via a gearing (not shown) to an electric drive motor (not shown) to be driven at a selected speed of ~20 (although higher speeds are possible). A groove 12 is formed around the circumference of the rotating wheel member, the radial cross section of which is shown in FIG. The deep part of the groove has parallel annular sides 14 which connect to the radial base 16 of the groove. The converging mouth portion 18 of this groove has opposing frustoconical surfaces 20, 22.
formed by. A fixed shoe member 24, supported by a lower pivot pin 26, extends around approximately one quarter of the circumference of the car member 10 and cooperates therewith. The shoe member is held in its operating position by a retractable stop member 28, as shown in FIG. The shoe member has at its center (as viewed axially) a circumferentially extending projecting portion 30 which leaves a small axial transverse clearance gap 32, 34 on each side of the vehicle member. 10 grooves 1
Part of it protrudes into 2. The projecting portion 30 is constituted in part by a series of replaceable inserts, including a radial abutment member 36, an abutment support 38 downstream of the abutment member, and an abutment support 38 upstream of the abutment member. It consists of a die block 40 (having an extrusion die 42) and an arcuate wear member 44 upstream of said die block. Upstream of its arcuate wear member 44 , an integral inlet portion 46 of the shoe member completes an arcuate passageway 48 that extends from a vertical feedstock inlet passageway 50 located below a feedstock hopper 52 . It passes around the rotating wheel member and extends downstream to the front face 54 of the abutment member 36 . A radial cross-section of the passageway is shown in FIG.
and the central portion 3 of the shoe member 24.
0 inner surface 56. The abutment member 36, die block 40, die 42, and arc member 44 are all made of a suitable hard, wear-resistant metal, such as high speed tool steel. The shoe member includes an exit hole 58 which is connected to a corresponding hole 60 formed in the die block 40.
Aligned with and through which the extruded metal product 61 (eg, round wire) emerges from the orifice of the die 42. As the wheel member 10 rotates, the powder feed material fed from the hopper 52 through the inflow passage 50 to the inlet end of the arcuate passage 48 flows along the length of the arcuate passage 48, as shown in FIG. It is then carried counterclockwise by the moving groove surface of the rotating member and is agglomerated and consolidated to form a void-free solid metal sludge in the lower portion of the passage near the die block 40. In the metal sludge, high pressure is continuously applied to the abutting member due to the frictional force of the moving groove surface. The pressure is sufficient to force the sludge metal out of the orifice of the extrusion die, thereby forming an extruded product which exits through holes 58, 60 in the show member and die block. In this case, the output product consists of a tinted copper wire made from the pieces of wire that make up the feed material. A water tube 62 mounted around the lower end of the show member 24 has an outlet nozzle 64 .
4 is located and attached to the shoe member side located near the rotary wheel member 10. The nozzle is such that when cooling water is sent to the water pipe, it directs the jet directly to the downstream part of the abutment member located in and abutting the groove 12 of the rotary wheel member 10. Thus, the tip of the free end of the abutment member (where the most heat is generated during operation) and the adjacent surface of the wheel member and groove are directly cooled by the flow of water from the jet directed thereto. Ru. The die block 40 includes internal water channels (not shown) and a supply of cooling water to surround the output product from the die and remove any residual heat within the product. However, no such internal passage is formed in the abutment member. Thus, the strength of the abutment member is not diminished by internal water cooling to cool the member. If desired, cooling of the apparatus can be enhanced by providing a cooling water sprinkler 65 above the hopper 52 to deliver some cooling water to the arcuate passageway 48 along with the grinding feed material. In FIG. 2, the solidified metal sludge in the extrusion area near die block 40 is shown at 66.
is shown. The output product from the metal sludge is extruded through an extrusion die 42 by pressure in that area. The pressure also acts to force metal through the axial clearance gaps 32, 34 between the side walls of the groove and the respective opposing surfaces of the die block and abutment member. The extruded metal then gradually accumulates in a radial direction to form a strip 68 or "flash" of waste metal. To prevent these waste elongated materials from becoming too large and difficult to handle and manage, a plurality of horizontal teeth 70 are provided.
Expansion walls 20, 2 forming the mouth portion 18 of the groove 12
Attached to 2. The teeth are evenly spaced around the wheel member, with teeth on one wall facing a corresponding tooth on the opposite wall. If desired, the teeth on one wall can be staggered relative to the corresponding teeth on the other wall. In operation, the sloped surface 72 of the die block 40 guides the extruded waste strip 68 through each set of moving teeth 7.
0 path. When the moving teeth intercept such a waste strip 68, a piece of the strip is severed or otherwise torn from the extruded metal in the clearance gap. Thus, such extruded waste strips are removed as soon as they extend radially far enough to be intercepted by the moving teeth. In this way, these flashes are kept from becoming large enough to be difficult to dispose of. The teeth do not need to be sharp, and the car member 10 has
Attached by any suitable method, for example by welding. Figures 3 and 4 show other teeth being attached in a similar manner to other suitable surfaces of the wheel member 10. In these arrangements, the outer surface of the wheel member 10 cooperates with the correspondingly shaped surface of the corresponding shoe member 24, thereby controlling the flash in a particularly desirable manner. In FIG. 3, the flashing immediately extends transversely, or axially, until it is intercepted by a plurality of projecting teeth, whereupon that portion of the flashing is broken from the extruded metal at the associated clearance gap. In FIG. 4, the flash extends diagonally but (as in FIG. 2) is interrupted by teeth projecting radially from the surface of wheel member 10. For various reasons that will become clear later,
It is desirable and even necessary to treat the extruded product (wire 61) exiting the aforementioned continuous extrusion device of the extruded product processing device before sending it to the product collection and storage device. Additionally, it is desirable and effective to process the still warm extruded product from a continuous extrusion process. Such processing equipment may, for example, be configured to provide an extruded product with a superior or different surface finish (e.g., pultrusion finish) and/or a more uniform outside diameter or gauge. Such processing equipment can also be used to provide finished products of different gauges and/or tolerances at different times from the same continuous extrusion product. For such purposes, the processing device may consist of a simple drawing die;
The extruded product is first processed through the die and then drawn under tension to produce the finished product having the desired size, desired tolerance, and/or desired quality. There is. When such processing equipment is used to process extruded products, the continuous extrusion die 42 of the continuous extrusion equipment may be used for extended periods of time before wear during use causes the die hole to enlarge excessively and become unusable. , can be used. Additionally, such processing equipment has dies that can be easily and quickly replaced so that output products with different gauges, different tolerances, and/or different qualities can be produced. Here, one example of a continuous extrusion system having a continuous extrusion device and an extruded product processing device is shown in the fifth section.
This will be explained in conjunction with the figure. Referring now to FIG. 5, the illustrated system includes a continuous extrusion system 100 as previously described;
It can also be modified, if desired, as described below, with the output copper wire produced by the apparatus being designated by the reference numeral 102, which copper wire 102 is fed through an accumulator 108 to a coiler 110. , the sizing die 104 by a pulling pulley device 106 passing around it many times.
(decrease that gauge to the desired smaller value)
is pulled through. The pulley device 106 is an electric torque motor 11
The power of the motor is applied and controlled by a control device 114. The control device 114 first responds to (a) a first electrical signal 116; This signal 1
16 is an extrusion device 100 and a sizing die 10
4 from a wire tension sensor 118 that contacts wire 102 at a location between Issue as the first signal. Furthermore, the control device 114 is configured such that the wire 102 is connected to the extrusion device 10.
a second electrical signal 12 from a temperature sensor 122 that measures the temperature of the wire 102 when leaving the
Also responds to 0. The control device 114 has a function generator 124, which generator
(temperature) signal 120 to its output circuit.
A third electrical signal is issued. This third electrical signal represents the yield stress/tension for the particular wire 102 at the particular temperature represented by the second (temperature) signal. The third electrical signal 126 is sent as a reference signal to a comparator 128 (also 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 becomes a signal for controlling the addition of the torque motor. In operation, the torque motor maintains the pull of the wire leaving the extruder 100 at a predetermined value below the yield stress pull for the particular wire at the particular temperature when the wire leaves the extruder 100. will be supported to a sufficient degree. Although in the example described above a jet of water was used to cool the tip of the abutment member, jets of other cooling fluids could be used instead (or even cooling gas). Even a jet of suitable liquefied gas can be used. Regarding the flash removal tooth 70 shown in the above description, please note the following. (a) the leading edge (i.e. the cutting edge or breaking edge) of each tooth;
The sharpness of is not critical as long as the flash removal function is properly achieved. (b) The operating clearance between the tip of each tooth 70 and the adjacent opposing surface of the fixed shoe member 24 is not critical and is typically no greater than 1 to 2 mm, depending on the particular design of the device. do not have. (c) The greater the number of teeth spaced around each side of wheel member 10, the shorter the length of flash removed by each tooth. (d) The teeth are made of a suitable material, such as tool steel. (e) The teeth may be attached to the wheel member by any suitable method. As explained in detail above, the present invention provides tooth-shaped flash removal devices 70 that protrude on both sides of the groove 12 on the outer periphery of the rotating wheel member 10.
It has the following effects regarding the removal of flash. (a) The debris is effectively removed into small pieces suitable for handling. (b) The toothed removal device 70 need not be specially shaped to mate with the moving surface of the rotating wheel member. (c) Once installed, the removal device 70 does not require periodic adjustment or maintenance work. (d) No special precautions need to be taken when attaching the removal device 70 to the rotary wheel member 10. (On the other hand, in the case of JP-A No. 52-54657, special care is required when installing the scraper.) (e) Since the removal device 70 can be made of a sturdy structure, there are no problems with the strength of the removal device 70. Not at all. (f) Since the removal device 70 is mounted on and rotates on the rotating wheel member 10, it functions effectively at any rotational speed. As the rotational speed increases, the amount of flash generated increases, but the removal device picks up and removes the flash more frequently, so that removal is performed effectively. When this equipment delivers an acceptable output extrudate from loose particles or ground feedstock,
The delivery capability is such that the radial depth (i.e., height) of the arcuate passageway 48 is increased in the pressure accumulation area located immediately in front (i.e., upstream) of the front surface 54 of the abutment member 36, e.g. in the manner shown in the drawings. This is significantly enhanced by the relatively rapid retraction of the wheel member 10 in the direction of rotation in a preferred manner. The removable dive block 40 is disposed circumferentially coextensive with said area, and the aforementioned gradual reduction in the radial depth of the arcuate passages is caused by the groove 12 in the wheel member 10. This is achieved by suitably shaping the surface 40A of the die block facing the bottom. The surface 40A of the die block is shaped so that, during operation of the device, a flow pattern of feed metal is produced in the area very similar to that which occurs when solid feed materials are used. In the preferred embodiment shown, the surface 40A is planar and slopes at a suitably small angle to a position tangential to the bottom of the groove 12 at the point of contact with the front surface 54 of the abutment member 36. The angle ideally depends on (a) the area of the abutment member 36 that contacts the feed metal material under the extrusion pressure, and (b) the radial cross-sectional area of the passageway 48 at the inlet end of said zone (i.e., the area of the die block 40). (radial cross-sectional area near the upstream end) of (i) the apparent density of the feed material entering the area at the inlet end; and (ii)
Preferably, the value is set equal to the ratio of the density of the fully consolidated feed material located near the front surface 54 of the abutment member 36. In one satisfactory arrangement, the angle of inclination of the plane of the die block is such that the area of the abutment member that contacts the feed metal material under the extrusion pressure is such that the area at the inlet end of the area (i.e. the upstream end of the die block) is such that the angle of inclination of the plane of the die block
The cross-sectional area in the radial direction is half of the cross-sectional area in the radial direction. If desired, in another embodiment, the surface of the die block facing the bottom of the groove 12 over most of its circumferential length extending from said upstream end of the die block may be sloped in the manner described above, to The portion of the die block located immediately adjacent to the front face 54 of the contact member has a surface located parallel (or substantially parallel) to the bottom of the groove 12. As previously discussed, the deeper penetration of the die block 40 into the groove 12 also results from the configuration of the surface 40A.
34 to increase the physical resistance to the desired extrusion of flash-forming metal, thereby significantly reducing the amount of feed metal material that forms such flashes. Furthermore, the die block is in the groove 12.
(a) reduces the extra work on the feed material, (b) reduces the amount of flash formation, and (c) reduces the bending moment exerted on the abutment member by the pressurized metal. Furthermore, by providing the die block with a flat working surface 40A, the cost of manufacturing the die block is also reduced. In the foregoing description, the car member 10 is driven by an electric drive motor at speeds within the aforementioned range, and other similarly operated continuous extrusion machines use hydraulic drives and operate at appropriate operating speeds. Sprinkler 62, hopper 52 and passage 5
Another method of directing further chilled water into the passageway 48 through the passageway 48 is to provide such additional cooling water until the passageway is filled with particulate feed material, but the particulate feed material is still sufficiently solidified. (e.g., show member 24
(through a passage 67 formed in). It is believed that the highly effective cooling effect according to the present invention arises mostly from the following facts. That is, the heat absorbed by the part of the car member located temporarily adjacent to the hot metal in the closed extrusion zone upstream of the abutment member is transferred from that hot zone to the cooling zone located downstream of the abutment member. In its cooling zone, due to the abundant supply of cooling fluid, it flows to a relatively large area of the wheel component through said cooling zone, and in the thermal extrusion zone. Most of the heat absorbed by the car components is absorbed therefrom. In this cooling zone, the movement of the vehicle component is less restricted and a relatively large portion of the vehicle component is exposed to the cool air. This is in direct contrast to the very small closed cooling surfaces provided directly adjacent to the extrusion area in the portions of the shoe member (i.e. the die block and abutment member) bounding the extrusion area. As previously mentioned, the cooling surfaces provided on these parts must be dimensioned to exacting dimensions due to the need to preserve the mechanical strength of these parts and ensure that they can safely withstand the extrusion pressures applied to them. limited to. The transfer phenomenon in which the heat absorbed by the car parts is transferred to the cooling zone can be achieved by introducing into the car parts a metal with good thermal conductivity and a good specific heat (per unit volume). It is greatly enhanced. However, since the car component is made of a physically strong metal (eg steel), which provides adequate mechanical strength, it has relatively poor heat conduction properties. Therefore, in order to enhance the ability of the vehicle component to transport heat to the cooling zone, it is to closely introduce into the vehicle component an annular band of metal, such as a copper band, with good heat absorption and transfer properties. . Such a thermally conductive band is conveniently constituted by an annular band attached around the periphery of said shoe member, preferably at least in part in order to provide said passage 48 (in the shoe member). The vehicle member is configured to have a circumferential groove formed therein. If the extruded product of this machine is made of a metal with good thermal conductive properties, the thermally conductive band is composed of the same metal as the extruded product (for example copper). In other cases, said thermally conductive band is embedded in or rests on a second annular band, said second band being made of the same metal as the machine extrusion, and said second annular band being made of the same metal as the extruded product of said abutment member, The two bands in contact with the part are made of different metals. The metals used in the thermally conductive band are selected to provide a product with higher thermal conductivity and specific heat per unit volume than tool steel, and include the following metals: i.e. copper, silver, beryllium,
These are gold, aluminum, tungsten, rhodium, iridium, molybdenum, ruthenium, zinc, and iron. The rate at which heat is transferred from the extrusion zone to the cooling zone by such a thermally conductive band depends on the band's radial cross-sectional area, and can be increased by increasing its cross-sectional area. Thus,
For a given transverse dimension, measured transversely to the circumference of the car part, the greater the radial depth of the band, the greater the heat transfer by the car part to the cooling zone. If the effective diameter of the wheel member is 233 mm, the rotational speed is 10 revolutions per minute, and the thermally conductive band has a U-shaped radial cross section, the wheel member transfers heat from the extrusion zone to the cooling zone. Carrying rate “R”
changes with a change in the radial depth of penetration into that copper band of said abutment member 36 cooperating with the wheel member, i.e. its width, by its rotation alone, in the manner described below. That is, it has been calculated that the thickness changes with the change in the radial thickness "T" of the copper band at the bottom of the peripheral groove 12. These calculations were based on the copper band having, in radial cross-section, an interface with an approximately circular shape with the adjacent part of the car part (tool steel). Therefore,
The radial cross-sectional area "A" of the copper band is defined by the groove 1.
The radial thickness “T” of copper at the bottom of 2
It changes non-linearly with

[Table] In one practical device with such a wheel member and a radial thickness T of 2 mm of the copper band at the bottom of the groove 12, operating at a speed of the wheel member of 150 meters per minute. When extruding a copper wire with a diameter of 1.4 mm at a speed of imparts a jet velocity of approximately 800 meters per minute to the surface to be cooled in the cooling zone. This heat extraction rate is 2.3 KW as a result of the heat conduction occurring through the conductive band, the adjacent car part and the abutment member, induced by the temperature gradient existing between the extrusion zone and the cooling zone. indicates that heat reaches the cooling zone at a rate of . The measured rate of heat extraction by the cooling water flowing through the cooling zone was found to be approximately 1.9KW achieved by flowing the cooling water through internal cooling passages formed in the abutment member in a conventional manner. very favorably compares to the maximum heat extraction rate of . FIG. 6 shows how the rate of heat extraction from the vehicle components and abutment components in this cooling zone varies with changes in the flow rate of cooling water delivered to that zone. The extrusion machine described above in connection with the drawings was, in the case of actual tests, equipped with said heat-conducting band made of copper. The band is indicated at 74 in FIG. 10 and is shown for convenience in dashed line form in FIG. (Note that FIG. 2 also shows a cross-sectional view taken through the section indicated by the - line in FIG. 10, where the copper band 74 is shown as a solid line). The copper band has a U-shaped radial cross section, as can be seen at 74 in FIG. 2, the band backing the rounded bottom 16 of the circumferential groove 12; It extended halfway down the parallel side walls. FIG. 7 is a similar view to FIG. 2, in which the car member 10
A modification example is shown below. In this variant, a solid copper annular band 76 with a substantially rectangular radial cross-section is formed by a cooperating steel side member 7 of said car member.
8 and is tightly tightened, so that when the drive shaft supporting the side member is driven by the drive motor, the band 7
6 is adapted to be driven by the side member. The band 76, at least initially, has a small internal groove 76A between the two side members 78 spanning the hermetic joint. The groove prevents the metal of the band from penetrating between these side members during assembly of the car part 10. The complementary frustoconical surfaces 76B and 78B of the band and side members facilitate assembly and disassembly of these portions of the vehicle component 10. The circumferential groove 12 is formed in the copper band by pivoting the shoe member 24 about its pivot pin 26 toward the circumference of the rotating wheel member 10, and by contacting the tip of the abutment member 36 with the copper band. , whereby the copper band is machined progressively deeper to form said grooves 12 therein. FIG. 8 shows another version of the variant of FIG. 7, in which the thermally conductive band consists of a composite annular band 80, in which an inner core 82 of a metal with good thermal conductivity (e.g. copper) is provided. ), which is in good heat conductive relationship with a sheath 84 of the same metal (e.g., zinc) being extruded by the machine. FIG. 9 shows yet another version of the modification of FIG. 7, in which the heat-conducting band consists of a composite band 86, the inner annular portion 88 of which, viewed in the radial direction, has excellent heat-conducting properties. and is surrounded in good thermal conductivity by a radially outer annular portion 90 of the same metal as that to be extruded by the machine. The circumferential groove is completely machined inside the radially outer part 90 of the band by means of an abutment. As mentioned above, the metals extruded by extrusion machines include: namely, copper and its alloys, aluminum and its alloys, zinc, silver, and gold. Various aspects of the subject matter of the invention which are not set out in the claims herein may be found in the same two UK patent applications no.
Claims of patent applications filed concurrently with other applications that similarly claim priority from No. 8309836 (filed on April 12, 1983) and No. 8302951 (filed on February 3, 1983) Please note that this is the content of the document.

[Brief explanation of drawings]

FIG. 1 is a central vertical cross-sectional view of the basic working part of the device, the cross-section being indicated by the - line in FIG. Fig. 2 is a cross-sectional view taken along the cross-section indicated by the - line in Fig. 1, and Figs. 3 and 4 are sectional views similar to the drawing in Fig. 2, showing two modified examples of the drawing in Fig. 2. shows. FIG. 5 is a schematic block diagram of a system using the devices shown in FIGS. 1 and 2.
FIG. 6 is a graph showing the change in heat extraction rate with respect to the change in cold water flow rate ratio obtained from a test conducted on one device according to the present invention. 7 to 9 are similar views to FIG. 2, showing various modifications of the vehicle components used in the device. FIG. 10 is similar to FIG. 1 and shows a modification of the apparatus shown in FIGS. 1 and 2. Explanation of symbols, 10...Rotary wheel member, 12...Continuous circumferential groove, 14...Side wall of groove, 24...Show member, 30...Protruding portion, 32, 34...Operating clearance, 36...Abutment Member, 40, 42... Die member, 48... Surrounding passage, 50, 52... Feed material inlet device, 60, 58... Outlet hole, 68...
Waste material, ie, debris, 70...Flush removal device.

Claims (1)

[Scope of Claims] 1 (a) A rotary wheel member 10 arranged to be rotated by a drive device during operation, and a continuous circumferential groove 12 formed around the wheel member; b) a common member having a portion 30 extending circumferentially around a portion of the circumference of said wheel member and projecting only partially radially into said groove with a small working clearance 32, 34 from the side walls 14 of said groove; a working shoe member 24 and said shoe member portions together with said channel walls forming a closed passageway 48 extending radially with respect to said shoe member; (c) a feed material inflow device 50,52; A device is located at the inlet end of the passageway 48 to allow feed materials to flow into the passageway at the inlet, so that when the wheel member rotates, those feedstocks flow into the passageway. (d) being supported by the shoe member and projecting radially into the passageway 48 at its outlet end; effectively closing said passageway at its outlet end, thereby preventing the passage of the selected feed material abrasively within said groove 12 by said wheel member, thus applying extrusion pressure to said passageway at the location of said outlet end. (e) a die orifice 42 supported by the show member and opening from the passage 48 at the outflow end;
die members 40, 42 having die members 40, 42, and the feed material conveyed in said groove 12 and frictionally compressed by rotation thereof when said wheel member 10 is driven is compressed through said openings and continuously (f) a flash removal device 70 mounted to the wheel component 10 for rotation therewith; the side wall 14 of the groove 12;
and a cooperating surface of the shoe member portion 30 projecting radially into the groove through one or both of the two gaps 32, 34 with said small working clearance. (during operation of the device), the waste material 68 (hereinafter referred to as the flash) is periodically interrupted and forcibly removed, resulting in a particulate or powdered material. Equipment for continuously extruding metal from a solid or solid feed material. 2. The flash removal device 70 has at least one tooth member 70 on each side of the groove, the tooth member being such that the flash extends a predetermined distance from the gap when the wheel member 10 rotates. When extended, the adjacent side of the groove is arranged to block the flash 68 being forced through the gaps 32, 34, and blocking of the flash by the tooth member removes the portion of the flash. An apparatus according to claim 1, characterized in that it is carried out for the purpose of: 3. The flash removal device 70 is characterized in that it has a plurality of such tooth members 70 on each side of the groove, evenly spaced around the wheel member 10, as claimed in the claims. The device according to scope 2. 4 the tooth member 70 located on one side of the groove 12;
A device according to claim 2 or 3, characterized in that the teeth are staggered in the circumferential direction with respect to corresponding tooth members 70 located on opposite sides of the groove. 5. Each tooth member 70 projects substantially radially from the wheel member 10, thereby causing the wheel member 1
It is characterized by blocking the flash 68 that is pushed out through the related gaps 32 and 34 in a diagonal direction or in a parallel direction to the rotation axis of 0, and according to any one of claims 2 to 4. equipment according to. 6. Each tooth member 70 projects substantially axially from the wheel member 10, thereby causing the wheel member 10 to
in a direction oblique to the axis of rotation of the associated gap 32,3
Device according to any one of claims 2 to 4, characterized in that the flash 68 extruded through the device is blocked. 7. Each of the tooth members 70 is configured as a cutting tool arranged to cut a portion of the flash 68.
Apparatus according to any one of the subclauses.