CA1040985A - Method of and apparatus for patenting wire - Google Patents
Method of and apparatus for patenting wireInfo
- Publication number
- CA1040985A CA1040985A CA233,519A CA233519A CA1040985A CA 1040985 A CA1040985 A CA 1040985A CA 233519 A CA233519 A CA 233519A CA 1040985 A CA1040985 A CA 1040985A
- Authority
- CA
- Canada
- Prior art keywords
- workpiece
- vessel
- support
- wire
- predetermined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Wire is continuously delivered to one of two vessels both filled with a salt bath maintained at a predetermined tem-perature. Inside each of the vessels is provided a vertically displaceable support onto which the wire is lowered, quickly taking on the same temperature as the salt bath. When a pre-determined quantity of wire has been loaded into the one vessel the wire is cut and is loaded into the other vessel while the support is lifted out of the first vessel and the bundle of wire is removed from it. Thereupon the support of the firs vessel is lowered back down to take on another charge of wire.
Wire is continuously delivered to one of two vessels both filled with a salt bath maintained at a predetermined tem-perature. Inside each of the vessels is provided a vertically displaceable support onto which the wire is lowered, quickly taking on the same temperature as the salt bath. When a pre-determined quantity of wire has been loaded into the one vessel the wire is cut and is loaded into the other vessel while the support is lifted out of the first vessel and the bundle of wire is removed from it. Thereupon the support of the firs vessel is lowered back down to take on another charge of wire.
Description
1~9~5 The present invention relates to a method of and an apparatus for treating a metallic workpiece. More particularly this invention concerns the immersive treatment of a metal strand in a vessel.
It is frequently necessary to treat a metal workpiece either physically, chemically, or thermally in a body of fluid held in a vessel, Such a process is used for rinsing, pickling, patenting, or similarly treating the workpiece.
When a workpiece that is being continually produced, such as a steel strand or a wire in a rolling mill, is to be immersively treated it is often necessary to provide an extremely large and complicated device through which this workpiece is passed and in which it spends enough time to undergo the neces-sary treatment, Thus complicated baths and guides are necessary in order to hold the workpiece immersed for a sufficiently long period of time in the treatment bath. This problem is consider-ably complicated when a high production speed is encountered, as many rolling mills are capable of turning out wire at speeds in excess of 30 meters per second so that the bath must contain 30 meters of workpiece for each second of treatment time desired.
It is~also known to treat workpieces by simply immer- r , sing them for a predetermined period of time in a bath. Such -systems are rarely usable with continuously produced workpieces and often are relatively inefficient because the fluid in the vessel is not homogeneous, but tends to stratify and separate so that different spots within the body of fluid will have dif- ~ -ferent characteristics from other spots Thus in a plating or patenting operation the finished workpiece will be unevenly treated.
.
:. .
It is therefore an object of the present invention to ;
provide an improved method of and app~ratus for treating a metal- - ;
lic workpiece with a treatment fluid.
- 1 ~
9~S
Another object of this invention is the provision of an improved treatment system which allows a continuously produced workpiece to be treated without interrupting its production.
Yet another object is to provide a treatment system that gives very even results yet is simple to operate and inex-pensive to set up and maintain.
A more specific object of this invention is to provide an improved method of and apparatus for patenti~g steel wire prior to drawing thereof.
These objects are attained according to the present invention in a system where the metallic workpiece is lowered into a body of treatment fluid in a vessel onto a support in the vessel while maintaining predetermined characteristics of the body of treatment fluid within predetermined ranges. Thereafter ;
the workpiece is held in the body on the support for a predeter-mined period of time after which the support is raised to lift - - -the workpiece entirely out of the body. The workpiece is then ~
picked off the support and the support is lowered back into the ~-body ready to receive another workpiece. This system can operate -very rapidly so as to treat a very large quantity of such work-pieces within a relatively limited time, the unloading and re- ' loading operation belng very short.
The system according to the present invention has a pair of such vessels so that while the support in the one body --is being raised to allow the workpiece thereon to be picked off --it the continuously arriving workpiece may be delivered to the - - -other vessel. The rapid unloading time allows the support of the first vessel to be back in position ready to receive another ~ workpiece before the second vessel is filled. With this arrange-ment i$ is possible to work with a continuously arriving work-piece, or in a batch-type operation. The changeover from the one vessel to the other can take place when the one vessel is 9~S ~' filled, or when a predetermined quantity of the continuously arriving workpiece is charged into the first vessel Thus in a wire-treatment apparatus when a predetermined volume of wire has been delivered to the one vessel the wire is cut and the next section is delivered to the other vessel.
The support according to the present invention is form-ed of a plurality of bars or is at least formed with a plurality of upwardly open slots so that times of the liftoff device may slip under the workpiece on the support and lift it therefrom.
This liftoff fork may be carried on a turntable-type transport system or an overhead-track arrangement so as to allow the treat-ed workpiece to be carried off to the next treatment area.
With the system according to the present invention it is only necessary to duplicate the vessel, the means for main- ~ -taining the body within a predetermined set of parameters, and the support in order to operate continuously. A common pickoff and a common feed device for the workpiece may serve both such arrangements when the vessels are placed adjacent one another.
This is best achieved by providing thè means for moving the two supports between the two vessels, with the means for lowering -the workpiece into the vessels being provided next to each other to one side of the two vessels, and the pickoff arrangements being provided movable at right angles to the feed arrangements.
The above and other objects, features, and advantages will become more readily apparent from the following, reference being made to the accompanying drawing in which: ~ -Figure 1 is a vertical section through an installation according to the present invention.
Figure 2 is a top view of the installation of Figure 1.
FigNre 3 is another vertical section through the apparatu~ of Figure 1, taken at a right angle to the section of Figure 1.
:, . ,, ' ' ~: : , :, , 1~4~g8S
The arrangement shown in Figures 1 to 3 is usable in a steel mill for the patenting of wire, It comprises basically a pair of like generally cylindrical vessels 1 each slightly more than 4 meters deep and set in the floor next to each other.
Each of these vessels 1 is made of steel and is provided with heating coils 4 that serve to heat a body of salt within it to a temperature of between 450C and 600C, at which temperature the salt melts and forms a liquid bath. Wire is delivered to these vessels 1 at a speed between 30 meters/second and 60 meters/
second and at a temperature of approximately 800C. This wire has a carbon content of below 0.3%. A pair of feed devices 5 is provided connected to respective feeders 9 mounted on carriages 19 slidable along track 18 by means of cylinders 17. The tracks 18 are dlrectly in line with one another so that the carriages 19 and the feeders 9 may be pulled in opposite directions away from the respective vessels 1. The feeders 9 feed the wire as it is - -delivered into a helix and allow it to drop down into the res- ~-pective vessels 1.
The salt bath is comprised of sodium nitrate which melts at 308C. Other water-soluble alkali or earth-alkali salts as well as mixtures thereof may also be employed.
The bath must be continuously cooled to maintain its temperature within the range of 450C - 600C, since the wire enters the bath at a substantially higher temperature. Each ves-sel 1 is provided with a large-diameter riser pipe 12 which terminates at its lower end near the bottom of the vessel 1 and which extends up out of the vessel 1 and into a separation vessel 14. Extending vertically down to the center of each riser pipe 12 and terminating slightly above the lower end thereof is a ~`-small-diameter pipe through which water or steam at a temperature ~u~tan~ia~y ~e~ow 4~C is intr~duced into the ~ath. On issuin~
~r~m the ~ottom of the pipe 20 the steam rises up and àny water , :
:.
104~9~5 vaporizes instantly in the bath and also rises in the tube 12, entraining a portion of the bath in gas-lift pump fashion. Thus molten sodium nitrate is pumped into the vessel 14 where it separates from the water and flows back into the top of the bath through a return pipe 13 that terminates at the top of the ves-sel 1. This arrangement 12, 13, 14, 20 therefore serves not only to cool the melt, but also circulates it from top to bottom in the vessel so as to maintain the temperature in the vessel relatively homogeneous. The amount of water or steam fed in through the pipe 20 determines the temperature of the melt and allows this temperature to be controlled within very close parameters.
After separation in the vessel 14 the steam exits through a pipe 22 and is fed to a condenser 26 and thence to a vessel 25 in which the wire is rinsed after treatment. There- ~-after the same water is passed through another cooler 27 and is fed back into the vessel 1 so that very little of the salt is lost, that portion which is carried off ~y the wire being re- -covered from the rinse water.
Adjacent the bottom or sump 15 of each of the vessels 1 there is provided a vertically displaceable support 2 formed by a plurality of parallel bars 23 together secured on a holder 6 that is vertically displaceable by means of a drive 11 into a lower position indicated in solid lines in Figure 1 and an upper position indicated to the right in dot-dash lines in Figure 1.
These bars 23 constituting the support 2 extend at right angles to the tracks 18 and lie between a cylindrical upright array of bar~ 16 that define with the bars 23 an upwardly open cage adapted to receive a bundle B of wire. Each vessel 1 has an overall depth H above the support 2 and the bundle B is formed such that ~ts top always lies in predetermined depth h underneath the sur-face of the bath. This distance h is sufficient for the wire . ' .
,. , .. , ; . -.. " .. .. . . .. .
lV4~9~35 falling to the bundle B to take on the same temperature as the bath No core is necessary for the bundle B since the wire itself naturally forms a very neat cylindrical package resting on the support 2 and confined by the cylindrical vertical array of rods 16.
After a bundle B of desired size is formed the lifter 11 is actuated to ràise the support completely up out of the bath, removing the bundle B totally from the salt. Thereupon a fork 8 on a carriage 7 rollable acrcss tracks 24 perpendicular ~ to the tracks 18 is inserted between the bars 23. After the fork 8 is fully underneath the bundle B the support 2 is lowered, leaving this bundle B resting on the fork 8, Thereupon the carriage 7 is withdrawn and another liftoff device 10 carried on an overhead track 3 is used to pick the bundle B off the fork 8 and move it to the next stage, here a rinsing vessel 25 which receives the water from the outlet 22.
In a system according to the present invention with wire delivered at a rate of 40 meters/second it is possible to form a bundle having a weight of 1400 kg. The device may operate so rapidly that it takes only 40 seconds to lift a complete `
bundle out of the vessel 1 and lower the support 2 back in place ~o that more wire may be placed on top of it. In accordance with this invention the two vessels are used with a single wire-making string, with the wire being delivered to the one vessel until the appropriately sized bundle B is formed and then being switch-ed over to the other vessel during unloading. Obviously the rapid cycling time makes it possible to operate this system continuously even in a very high speed plant.
In addition it has been found that it is possible to produce extremely high-quality patented wire, much better than i8 obtained wlth the hitherto used lead-bath arrangements. This lS due principally to the fact that the temperature is maintained ~ ' 104(~9~5 within very close parameters in the bath and the wire rapidly changes from its normally high temperature to its low temperature as it crosses the austenitic point as is necessary in wire paten-ting. In addition it is possible for this system to take up a relatively reduced amount of space in an existing steel mill, much less room being necessary than for the hitherto-used long baths through which the wire is passed continuously.
, . . , , :
It is frequently necessary to treat a metal workpiece either physically, chemically, or thermally in a body of fluid held in a vessel, Such a process is used for rinsing, pickling, patenting, or similarly treating the workpiece.
When a workpiece that is being continually produced, such as a steel strand or a wire in a rolling mill, is to be immersively treated it is often necessary to provide an extremely large and complicated device through which this workpiece is passed and in which it spends enough time to undergo the neces-sary treatment, Thus complicated baths and guides are necessary in order to hold the workpiece immersed for a sufficiently long period of time in the treatment bath. This problem is consider-ably complicated when a high production speed is encountered, as many rolling mills are capable of turning out wire at speeds in excess of 30 meters per second so that the bath must contain 30 meters of workpiece for each second of treatment time desired.
It is~also known to treat workpieces by simply immer- r , sing them for a predetermined period of time in a bath. Such -systems are rarely usable with continuously produced workpieces and often are relatively inefficient because the fluid in the vessel is not homogeneous, but tends to stratify and separate so that different spots within the body of fluid will have dif- ~ -ferent characteristics from other spots Thus in a plating or patenting operation the finished workpiece will be unevenly treated.
.
:. .
It is therefore an object of the present invention to ;
provide an improved method of and app~ratus for treating a metal- - ;
lic workpiece with a treatment fluid.
- 1 ~
9~S
Another object of this invention is the provision of an improved treatment system which allows a continuously produced workpiece to be treated without interrupting its production.
Yet another object is to provide a treatment system that gives very even results yet is simple to operate and inex-pensive to set up and maintain.
A more specific object of this invention is to provide an improved method of and apparatus for patenti~g steel wire prior to drawing thereof.
These objects are attained according to the present invention in a system where the metallic workpiece is lowered into a body of treatment fluid in a vessel onto a support in the vessel while maintaining predetermined characteristics of the body of treatment fluid within predetermined ranges. Thereafter ;
the workpiece is held in the body on the support for a predeter-mined period of time after which the support is raised to lift - - -the workpiece entirely out of the body. The workpiece is then ~
picked off the support and the support is lowered back into the ~-body ready to receive another workpiece. This system can operate -very rapidly so as to treat a very large quantity of such work-pieces within a relatively limited time, the unloading and re- ' loading operation belng very short.
The system according to the present invention has a pair of such vessels so that while the support in the one body --is being raised to allow the workpiece thereon to be picked off --it the continuously arriving workpiece may be delivered to the - - -other vessel. The rapid unloading time allows the support of the first vessel to be back in position ready to receive another ~ workpiece before the second vessel is filled. With this arrange-ment i$ is possible to work with a continuously arriving work-piece, or in a batch-type operation. The changeover from the one vessel to the other can take place when the one vessel is 9~S ~' filled, or when a predetermined quantity of the continuously arriving workpiece is charged into the first vessel Thus in a wire-treatment apparatus when a predetermined volume of wire has been delivered to the one vessel the wire is cut and the next section is delivered to the other vessel.
The support according to the present invention is form-ed of a plurality of bars or is at least formed with a plurality of upwardly open slots so that times of the liftoff device may slip under the workpiece on the support and lift it therefrom.
This liftoff fork may be carried on a turntable-type transport system or an overhead-track arrangement so as to allow the treat-ed workpiece to be carried off to the next treatment area.
With the system according to the present invention it is only necessary to duplicate the vessel, the means for main- ~ -taining the body within a predetermined set of parameters, and the support in order to operate continuously. A common pickoff and a common feed device for the workpiece may serve both such arrangements when the vessels are placed adjacent one another.
This is best achieved by providing thè means for moving the two supports between the two vessels, with the means for lowering -the workpiece into the vessels being provided next to each other to one side of the two vessels, and the pickoff arrangements being provided movable at right angles to the feed arrangements.
The above and other objects, features, and advantages will become more readily apparent from the following, reference being made to the accompanying drawing in which: ~ -Figure 1 is a vertical section through an installation according to the present invention.
Figure 2 is a top view of the installation of Figure 1.
FigNre 3 is another vertical section through the apparatu~ of Figure 1, taken at a right angle to the section of Figure 1.
:, . ,, ' ' ~: : , :, , 1~4~g8S
The arrangement shown in Figures 1 to 3 is usable in a steel mill for the patenting of wire, It comprises basically a pair of like generally cylindrical vessels 1 each slightly more than 4 meters deep and set in the floor next to each other.
Each of these vessels 1 is made of steel and is provided with heating coils 4 that serve to heat a body of salt within it to a temperature of between 450C and 600C, at which temperature the salt melts and forms a liquid bath. Wire is delivered to these vessels 1 at a speed between 30 meters/second and 60 meters/
second and at a temperature of approximately 800C. This wire has a carbon content of below 0.3%. A pair of feed devices 5 is provided connected to respective feeders 9 mounted on carriages 19 slidable along track 18 by means of cylinders 17. The tracks 18 are dlrectly in line with one another so that the carriages 19 and the feeders 9 may be pulled in opposite directions away from the respective vessels 1. The feeders 9 feed the wire as it is - -delivered into a helix and allow it to drop down into the res- ~-pective vessels 1.
The salt bath is comprised of sodium nitrate which melts at 308C. Other water-soluble alkali or earth-alkali salts as well as mixtures thereof may also be employed.
The bath must be continuously cooled to maintain its temperature within the range of 450C - 600C, since the wire enters the bath at a substantially higher temperature. Each ves-sel 1 is provided with a large-diameter riser pipe 12 which terminates at its lower end near the bottom of the vessel 1 and which extends up out of the vessel 1 and into a separation vessel 14. Extending vertically down to the center of each riser pipe 12 and terminating slightly above the lower end thereof is a ~`-small-diameter pipe through which water or steam at a temperature ~u~tan~ia~y ~e~ow 4~C is intr~duced into the ~ath. On issuin~
~r~m the ~ottom of the pipe 20 the steam rises up and àny water , :
:.
104~9~5 vaporizes instantly in the bath and also rises in the tube 12, entraining a portion of the bath in gas-lift pump fashion. Thus molten sodium nitrate is pumped into the vessel 14 where it separates from the water and flows back into the top of the bath through a return pipe 13 that terminates at the top of the ves-sel 1. This arrangement 12, 13, 14, 20 therefore serves not only to cool the melt, but also circulates it from top to bottom in the vessel so as to maintain the temperature in the vessel relatively homogeneous. The amount of water or steam fed in through the pipe 20 determines the temperature of the melt and allows this temperature to be controlled within very close parameters.
After separation in the vessel 14 the steam exits through a pipe 22 and is fed to a condenser 26 and thence to a vessel 25 in which the wire is rinsed after treatment. There- ~-after the same water is passed through another cooler 27 and is fed back into the vessel 1 so that very little of the salt is lost, that portion which is carried off ~y the wire being re- -covered from the rinse water.
Adjacent the bottom or sump 15 of each of the vessels 1 there is provided a vertically displaceable support 2 formed by a plurality of parallel bars 23 together secured on a holder 6 that is vertically displaceable by means of a drive 11 into a lower position indicated in solid lines in Figure 1 and an upper position indicated to the right in dot-dash lines in Figure 1.
These bars 23 constituting the support 2 extend at right angles to the tracks 18 and lie between a cylindrical upright array of bar~ 16 that define with the bars 23 an upwardly open cage adapted to receive a bundle B of wire. Each vessel 1 has an overall depth H above the support 2 and the bundle B is formed such that ~ts top always lies in predetermined depth h underneath the sur-face of the bath. This distance h is sufficient for the wire . ' .
,. , .. , ; . -.. " .. .. . . .. .
lV4~9~35 falling to the bundle B to take on the same temperature as the bath No core is necessary for the bundle B since the wire itself naturally forms a very neat cylindrical package resting on the support 2 and confined by the cylindrical vertical array of rods 16.
After a bundle B of desired size is formed the lifter 11 is actuated to ràise the support completely up out of the bath, removing the bundle B totally from the salt. Thereupon a fork 8 on a carriage 7 rollable acrcss tracks 24 perpendicular ~ to the tracks 18 is inserted between the bars 23. After the fork 8 is fully underneath the bundle B the support 2 is lowered, leaving this bundle B resting on the fork 8, Thereupon the carriage 7 is withdrawn and another liftoff device 10 carried on an overhead track 3 is used to pick the bundle B off the fork 8 and move it to the next stage, here a rinsing vessel 25 which receives the water from the outlet 22.
In a system according to the present invention with wire delivered at a rate of 40 meters/second it is possible to form a bundle having a weight of 1400 kg. The device may operate so rapidly that it takes only 40 seconds to lift a complete `
bundle out of the vessel 1 and lower the support 2 back in place ~o that more wire may be placed on top of it. In accordance with this invention the two vessels are used with a single wire-making string, with the wire being delivered to the one vessel until the appropriately sized bundle B is formed and then being switch-ed over to the other vessel during unloading. Obviously the rapid cycling time makes it possible to operate this system continuously even in a very high speed plant.
In addition it has been found that it is possible to produce extremely high-quality patented wire, much better than i8 obtained wlth the hitherto used lead-bath arrangements. This lS due principally to the fact that the temperature is maintained ~ ' 104(~9~5 within very close parameters in the bath and the wire rapidly changes from its normally high temperature to its low temperature as it crosses the austenitic point as is necessary in wire paten-ting. In addition it is possible for this system to take up a relatively reduced amount of space in an existing steel mill, much less room being necessary than for the hitherto-used long baths through which the wire is passed continuously.
, . . , , :
Claims (12)
1. A method of treating a metallic workpiece comprising the steps of:
lowering said workpiece into a body of treatment fluid in a vessel onto a support in said vessel while maintaining predetermined characteristics of said body within predetermined ranges;
thereafter holding said workpiece in said body on said support for a predetermined period of time;
thereafter raising said support to lift said workpiece entirely out of said body; and thereafter picking said workpiece off said support and lowering said support back into said body to receive another workpiece.
lowering said workpiece into a body of treatment fluid in a vessel onto a support in said vessel while maintaining predetermined characteristics of said body within predetermined ranges;
thereafter holding said workpiece in said body on said support for a predetermined period of time;
thereafter raising said support to lift said workpiece entirely out of said body; and thereafter picking said workpiece off said support and lowering said support back into said body to receive another workpiece.
2. The method defined in claim 1, further comprising the step of continuously delivering said workpiece to a site having two such vessels and then lowering said workpiece into one of said vessels until a predetermined quantity has been fed there-into, and then lowering said workpiece into the other of said vessels while lifting the first quantity from said one vessel.
3. The method defined in claim 1 wherein said workpiece is elongated and a predetermined quantity is lowered into said body prior to raising said support.
4. The method defined in claim 1 wherein said predetermined period is the length of time it takes said workpiece to come to rest in said body.
5. The method defined in claim 1 wherein said body is maintained within a predetermined temperature range by mixing with said fluid another fluid at a different temperature and then separating said other fluid from said body.
6. The method defined in claim 1 wherein said workpiece is a wire to be patented and said fluid is a molten salt at a temperature between 450°C and 600°C, said method further compri-sing the step of confining said wire in a compact bundle in said body.
7. The method defined in claim 6 wherein the temperature of said body is maintained between 450°C and 600°C by mixing water with said melt and then recovering said water as vapor.
8. An apparatus for treating a metallic workpiece with a treatment fluid, said apparatus comprising:
a vessel adapted to hold a body of said fluid;
a support in said vessel displaceable between a down position under the surface of said body and an up position above said surface;
means for lowering said workpiece into said body onto said support;
means for maintaining predetermined characteristics of said body within predetermined ranges during and after lowering of said workpiece into said body;
means for displacing said support into said up position to lift said workpiece out of said body after a predetermined treatment period; and transport means adjacent said vessel for picking said workpiece off said support when same is in said up position.
a vessel adapted to hold a body of said fluid;
a support in said vessel displaceable between a down position under the surface of said body and an up position above said surface;
means for lowering said workpiece into said body onto said support;
means for maintaining predetermined characteristics of said body within predetermined ranges during and after lowering of said workpiece into said body;
means for displacing said support into said up position to lift said workpiece out of said body after a predetermined treatment period; and transport means adjacent said vessel for picking said workpiece off said support when same is in said up position.
9. The apparatus defined in claim 8 wherein said support is a plurality of horizontal parallel bars, said transport means including a fork engageable under said workpiece between said bars.
10. The apparatus defined in claim 9 wherein said vessel is provided with an array of parallel vertical rods defining with said bars an upwardly open receptacle for confining said work-piece.
11. The apparatus defined in claim 10 wherein said work-piece is a wire, said means for lowering including means for coiling said wire into a bundle in said vessel.
12. The apparatus defined in claim 8, further comprising a second such vessel having a second such support adjacent the first-mentioned vessel and means for alternately feeding said workpiece to said vessels.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2439561A DE2439561A1 (en) | 1974-08-17 | 1974-08-17 | PROCESS FOR TREATMENT OF METALLIC GOODS IN A TREATMENT VESSEL AND PLANT FOR CARRYING OUT THE PROCESS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1040985A true CA1040985A (en) | 1978-10-24 |
Family
ID=5923472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA233,519A Expired CA1040985A (en) | 1974-08-17 | 1975-08-15 | Method of and apparatus for patenting wire |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5145622A (en) |
| AT (1) | AT352160B (en) |
| AU (1) | AU499962B2 (en) |
| BE (1) | BE832416A (en) |
| CA (1) | CA1040985A (en) |
| ES (2) | ES440295A1 (en) |
| FR (1) | FR2281991A1 (en) |
| GB (1) | GB1490816A (en) |
| IT (1) | IT1041198B (en) |
| SE (1) | SE7509179L (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO166455C (en) * | 1984-09-07 | 1991-07-31 | Sumitomo Electric Industries | PROCEDURE AND DEVICE FOR DIRECT HEAT TREATMENT OF A STEEL STEEL WITH HIGH CARBON CONTENT. |
| CN113879790B (en) * | 2021-09-30 | 2023-05-16 | 上海镁源动力科技有限公司 | System and method for automatic feeding of solid metal raw materials |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR834216A (en) * | 1938-02-24 | 1938-11-16 | Chantier Et Ateliers De Saint | Automatic charger-unloader |
| US3604691A (en) * | 1969-05-29 | 1971-09-14 | Bliss Co | Apparatus and method for coiling and quenching rod |
| GB1276738A (en) * | 1969-08-21 | 1972-06-07 | Sumitomo Electric Industries | Method for heat-treating of hot rolled rod |
-
1975
- 1975-07-23 AT AT569675A patent/AT352160B/en not_active IP Right Cessation
- 1975-08-07 GB GB33064/75A patent/GB1490816A/en not_active Expired
- 1975-08-08 IT IT50894/75A patent/IT1041198B/en active
- 1975-08-13 FR FR7525235A patent/FR2281991A1/en active Granted
- 1975-08-13 BE BE6045134A patent/BE832416A/en unknown
- 1975-08-15 CA CA233,519A patent/CA1040985A/en not_active Expired
- 1975-08-15 SE SE7509179A patent/SE7509179L/en unknown
- 1975-08-15 AU AU84000/75A patent/AU499962B2/en not_active Expired
- 1975-08-16 JP JP50099094A patent/JPS5145622A/ja active Pending
- 1975-08-16 ES ES440295A patent/ES440295A1/en not_active Expired
-
1976
- 1976-02-27 ES ES445618A patent/ES445618A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES445618A1 (en) | 1977-06-01 |
| AU499962B2 (en) | 1979-05-10 |
| BE832416A (en) | 1975-12-01 |
| JPS5145622A (en) | 1976-04-19 |
| FR2281991A1 (en) | 1976-03-12 |
| ATA569675A (en) | 1979-02-15 |
| AT352160B (en) | 1979-09-10 |
| IT1041198B (en) | 1980-01-10 |
| GB1490816A (en) | 1977-11-02 |
| ES440295A1 (en) | 1977-04-01 |
| AU8400075A (en) | 1977-02-17 |
| SE7509179L (en) | 1976-02-18 |
| FR2281991B1 (en) | 1977-12-16 |
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