JP4872648B2 - Heating and cooling equipment for clad material manufacturing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating and cooling apparatus in a facility for manufacturing a cladded material, which can efficiently and stably heat and cool a metallic powder that is pressure-welded onto the surface of a base material, and can stably transport the cladded material in a heating furnace or a cooler, while preventing a brazing material layer in a state that the metal powder is softened by having been heated from being damaged. <P>SOLUTION: This heating and cooling apparatus comprises: a heating furnace 5 divided into a plurality of heating blocks 5a, 5b and 5c in a direction of transporting the cladded material 4; a cooler 6 divided into a plurality of gas cooling blocks 6a and 6b and a water cooling block 6c in the direction of transporting the cladded material 4; and supporting devices 18 each having a support roller which can support at least both ends in a width direction of the cladded material 4 arranged in a connection part among the heating blocks 5a, 5b and 5c, and in a connection part among the gas cooled blocks 6a and 6b and the water cooled block 6c so as to transport the cladded material 4, in a state of making the cladded material 4 suspended in the air between the supporting devices 18. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a heating / cooling device for a clad material manufacturing facility.

  In recent years, for example, a clad material in which a brazing material layer is formed by pressing a metal powder mainly composed of phosphorous copper, nickel, etc. on both sides or one side of a base metal plate such as copper, stainless steel, or a heat-resistant alloy. It has been proposed to use an apparatus as shown in FIG. 12 when manufacturing such a clad material.

  FIG. 12 shows an example of a powder crimping apparatus that constitutes a clad material manufacturing facility. The powder crimping apparatus 1 includes a pair of rolls 1a and 1b arranged to face each other in the horizontal direction, and the pair of rolls 1a, 1b, 1b is driven by a driving device such as a motor (not shown) so that the opposite side rotates downward, and the roll gap G can be adjusted.

  Metal powder supply rollers 2a and 2b are rotatably arranged on the upper surfaces of the rolls 1a and 1b, and the metal powder Pm is positioned upstream of the metal powder supply rollers 2a and 2b in the rotation direction of the rolls 1a and 1b. Are stored and metal powder hoppers 3a and 3b capable of supplying the metal powder Pm to the upper surfaces of the rolls 1a and 1b are disposed.

  In FIG. 12, S is a base material such as copper or stainless steel supplied between the rolls 1a and 1b from above by a rewinding machine (not shown).

  In the powder crimping apparatus 1 constituting the clad material manufacturing facility as described above, the pair of rolls 1a and 1b are rotated in the direction of the arrow in FIG. 12 by a driving device such as a motor (not shown) and the roll 1a from above. , 1b, the base material S is fed, and the metal powder Pm is supplied from the metal powder hoppers 3a, 3b to the upper surfaces of the rolls 1a, 1b.

  Thus, the amount of the metal powder Pm supplied to the upper surfaces of the rolls 1a and 1b is adjusted by the rotating metal powder supply rollers 2a and 2b and fed to the base material S side, and the rolls of the rolls 1a and 1b are supplied. In the gap G, the clad material 4 is formed by being pressed against the surface of the base material S.

For example, Patent Document 1 shows a general technical level related to the powder crimping apparatus constituting the clad material manufacturing facility as described above.
JP 2002-212608 A

  By the way, in the clad material 4 as described above, it is effective to heat and sinter the metal powder Pm pressure-bonded to the surface of the base material S, and then cool it, in order to further stabilize the brazing material layer. At present, there has not been established a specific form of a heating furnace or a cooler that can efficiently and stably heat and cool the metal powder Pm. In particular, the metal powder Pm is softened by heating. How to stably convey the clad material 4 in a heating furnace or cooler while preventing the brazing material layer from being damaged has been a major issue to be solved. In addition, in the sintering referred to here, the metal powder Pm is melted and fused to the base material S by being guided to a heating furnace, in other words, by heating, the particle surface of the metal powder Pm or It also includes that the metal powder Pm is fused to the base material S by melting part thereof (releasing the liquid phase) and softening.

  In view of such circumstances, the present invention can efficiently and stably heat and cool the metal powder pressure-bonded to the surface of the base material, and damage the brazing material layer in which the metal powder is softened by heating. An object of the present invention is to provide a heating / cooling device for a clad material manufacturing facility capable of stably transporting the clad material in a heating furnace or a cooler while preventing sticking.

In the present invention, a metal powder is pressure-bonded to a surface of a base material with a powder pressure bonding apparatus, the metal powder is heated and sintered in a heating furnace, and then cooled with a cooler, thereby producing a clad material. In the heating and cooling device of the clad material manufacturing facility,
The heating furnace is divided into a plurality of heating blocks in the clad material conveyance direction, and the cooler is divided into a plurality of cooling blocks in the clad material conveyance direction, and the heating block connection portion and the cooling block connection And a support device having a support roller capable of supporting at least both width ends of the clad material, and the clad material can be conveyed in a suspended state between the support devices. This applies to the heating and cooling device of the material manufacturing facility.

  According to the above means, the following operation can be obtained.

  The clad material is cooled with the heating block and the cooling block while at least both width ends thereof are supported by the support rollers of the support device disposed at the connection portion of the heating block of the heating furnace and the connection portion of the cooling block of the cooler. Even if the inside of the block is stably transported in a suspended state and the metal powder is softened by heating, there is no concern that the brazing material layer will be damaged.

  In the heating / cooling device of the cladding material manufacturing facility, when handling the cladding material in which the metal powder is fixed without being softened so much in the vicinity of the outlet of the last heating block in the conveying direction of the cladding material, the heating block and the cooling block The support device may be disposed at the connection portion.

  In the heating / cooling device of the clad material manufacturing facility, the support roller of the support device can be provided with a drive device that rotates and synchronizes with the conveying speed of the clad material by the powder crimping device. Then, it becomes possible to more reliably prevent the brazing material layer in which the metal powder is softened by heating from being damaged.

  Furthermore, providing a support roller for supporting the intermediate portion in the width direction of the clad material supports the clad material by distributing the weight of the clad material by a plurality of support rollers, further stabilizing the conveyance of the clad material and brazing material. It is more effective in preventing the layer from being scratched.

  In addition, it is desirable to provide a cooling mechanism for cooling the support device in order to avoid the temperature increase of the support roller.

  According to the heating and cooling apparatus of the clad material manufacturing facility according to claims 1 to 5 of the present invention, heating and cooling of the metal powder pressure-bonded to the surface of the base material can be performed efficiently and stably, and the metal powder is heated by heating. While preventing the brazing material layer in the softened state from being damaged, it is possible to achieve an excellent effect that the clad material can be stably conveyed in a heating furnace or a cooler.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIGS. 1-6 is an example of embodiment which implements this invention, Comprising: In the said powder crimping | compression-bonding apparatus 1 (refer FIG. 12), the clad material 4 by which the metal powder Pm was crimped | bonded to the surface of the base material S was heated, and the said A heating furnace 5 for sintering the metal powder Pm and a cooler 6 disposed downstream of the heating furnace 5 are provided, and the cooler 6 cools the clad material 4 with an inert gas such as nitrogen. A gas cooling region 6A and a water cooling region 6B that directly cools the clad material 4 cooled in the gas cooling region 6A with water to be jetted are configured.

  The heating furnace 5 is divided into a plurality of (three in the example of FIG. 1) heating blocks 5 a, 5 b, 5 c in the conveying direction of the clad material 4, and the gas cooling region 6 A of the cooler 6 is composed of the clad material 4. A plurality of (two in the example of FIG. 1) gas cooling blocks 6a and 6b are divided in the transport direction, and the water cooling region 6B of the cooler 6 is constituted by a water cooling block 6c.

  As shown in FIGS. 1 and 2, the heating blocks 5a, 5b, 5c of the heating furnace 5 form a clad material flow passage 9 covered with a heat-resistant metal partition wall 8 in the fire-resistant casing 7, and A heating element 10 such as an electric heater is disposed outside the heat-resistant metal partition wall 8 in the casing 7, and the heating blocks 5 a, 5 b, 5 c are connected in the conveying direction of the clad material 4. . In addition, an inert gas such as nitrogen is supplied from a nozzle (not shown) into the clad material flow passage 9 covered with the heat-resistant metal partition wall 8.

  On the other hand, each of the gas cooling blocks 6a and 6b can supply a cooling inert gas such as nitrogen from the nozzle 13 into the clad material flow passage 12 covered with the cooling casing 11, as shown in FIG. It is.

  As shown in FIG. 4A, the water cooling block 6c directs cooling water from the water jet nozzle 16 toward the upper and lower surfaces of the clad material 4 in the clad material flow passage 15 covered with the cooling casing. As shown in FIG. 4 (b), the gas can be injected at least downstream of the water injection nozzle 16 in the conveying direction of the clad material 4 in the clad material flow passage 15 covered with the cooling casing 14. An inert gas such as nitrogen can be injected from the injection nozzle 17 toward the upper and lower surfaces of the clad material 4. The inert gas injected from the gas injection nozzle 17 keeps the inside of the clad material flow passage 15 covered with the cooling casing 14 of the water cooling block 6c in an inert gas atmosphere to prevent oxidation of the clad material 4. In addition to the above, it also plays the role of blowing off the water adhering to the surface of the clad material 4 and drying it. Further, on the exit side of the water cooling block 6c, a water draining device (not shown) for sandwiching the upper and lower surfaces of the clad material 4 with rubber pads or the like and scraping off water droplets remaining on the surface of the clad material 4 is installed. is there.

  As shown in FIG. 1, the connecting portions of the heating blocks 5a, 5b, and 5c, the connecting portions of the gas cooling blocks 6a and 6b, and the connecting portions of the gas cooling block 6b and the water cooling block 6c are as shown in FIG. A support device 18 for the clad material 4 is provided, and the clad material 4 can be transported between the support devices 18 in a suspended state.

  In the example shown in FIG. 1, the support device 18 for the clad material 4 is arranged at the connecting portion between the last heating block 5 c in the transport direction of the clad material 4 and the first gas cooling block 6 a in the transport direction of the clad material 4. Not set up. This is because the metal powder Pm is most softened in the vicinity of the outlet of the last heating block 5c in the conveyance direction of the clad material 4, but in the case of the clad material 4 to which the metal powder Pm softened greatly by heating is pressed, the metal powder Pm This is because it is necessary to avoid contact of the clad material 4 with the support device 18 in the softened state.

  However, in the clad material 4 in which the metal powder Pm is fixed without being softened so much in the vicinity of the exit of the heating block 5c at the end of the clad material 4 in the conveying direction, the contact of the clad material 4 with the support device 18 is not particularly concerned. Needless to say, the support device 18 may be disposed.

  In the example shown in FIG. 1, it is assumed that the metal powder Pm is greatly softened near the outlet of the last heating block 5 c in the conveyance direction of the clad material 4 and it is necessary to avoid contact of the clad material 4 with the support device 18. The support device 18 provided with the clad material 4 on the carry-in side of the last heating block 5c in the carrying direction, and the support device 18 provided on the carry-out side of the first gas cooling block 6a with respect to the carry direction of the clad material 4 Thus, the heating block 5c and the cooling block 6a are transported while being supported in a suspended state.

  In addition, the clad material 4 is controlled so that the tension becomes a predetermined value in the section of the winding device (not shown) disposed behind the cooler 6 from the powder crimping device 1 in order to maintain the quality. Be transported.

  However, when the length at which the clad material 4 is suspended is increased, the slack in the direction perpendicular to the conveying direction of the clad material 4 increases, and stable tension control becomes difficult. Further, when this sag increases, it becomes necessary to increase the height of the clad material flow passages 9 and 12 of the heating blocks 5a, 5b and 5c and the gas cooling blocks 6a and 6b, and the equipment becomes larger.

  Therefore, in the case of the example shown in FIG. 1, the temperature of the clad material 4 is increased to near the sintering temperature up to the heating block 5b before the last heating block 5c in the conveying direction of the clad material 4, and the last heating block 5c If the sintering of the clad material 4 is completed, it is possible to avoid an increase in the length of the last heating block 5c.

  In the case of the example shown in FIG. 1, in the first gas cooling block 6a in the transport direction of the clad material 4, the metal powder Pm of the clad material 4 is in a softened state on the carry-out side of the gas cooling block 6a. Since it is sufficient that the material layer can be cooled to such an extent that it does not get damaged even if it contacts the support device 18, it is possible to avoid the length of the first gas cooling block 6a from becoming too long.

  As described above, the heating furnace 5 and the cooler 6 are divided into a plurality of heating blocks 5a, 5b, 5c and a plurality of gas cooling blocks 6a, 6b, respectively, so that the last heating block 5c in the transport direction of the clad material 4 is obtained. In addition, it is possible to avoid an increase in the length of each of the first gas cooling blocks 6a in the conveying direction of the clad material 4, and it is possible to avoid an increase in the length in which the clad material 4 is suspended in the meantime. Further, it is possible to stably convey the clad material 4 while suppressing the slack due to the suspension of the clad material 4.

  On the other hand, the support device 18 can be connected to the heat-resistant metal partition wall 8 (see FIG. 2), the cooling casing 11 (see FIG. 3), and the cooling casing 14 (see FIG. 4) as shown in FIGS. A support shaft 20 extending in a horizontal direction perpendicular to the conveying direction of the clad material 4 is rotatably disposed on the support casing 19 via a bearing 21, and a plurality of (four in the example of FIG. The support roller 22 is externally fitted at equal intervals so as to be capable of supporting both the width end portions and the width direction intermediate portion of the clad material 4, and the support roller 22 is fitted to the support shaft 20. A driving device 23 that is driven to rotate in synchronization with the conveying speed of the clad material 4 (see FIG. 12) is connected, and the bearing 21 is cooled to cool the support shaft 20 and the support roller 22. The mechanism 24 is provided, inside the support casing 19, it is then adapted to feed an inert gas such as nitrogen gas from the gas supply nozzle 25.

  The drive device 23 for the support roller 22 includes a drive pulley 28 driven by a motor 26 attached to the outside of the support casing 19 via a speed reducer 27, and a driven pulley 29 fitted to the end of the support shaft 20. The endless drive belt 30 is wound around between them.

  The cooling mechanism 24 of the support device 18 is provided with a water jacket 31 integrally with the bearing 21 on the outside of the support casing 19 so as to surround the outer periphery of the support shaft 20, and cooling water is supplied to the internal space 32 of the water jacket 31. The support shaft 20 and the support roller 22 can be cooled by being circulated.

  Further, in the heating furnace 5 and the cooler 6, as shown in FIG. 1, an endless transport belt 33 made of a mesh belt or the like that is circulated to the outside through the heating furnace 5 and the cooler 6 is provided. The tip of the clad material 4 can be passed through the heating furnace 5 and the cooler 6 by driving the conveyor belt 33 in the direction of the arrow in FIG. As shown in FIGS. 5 and 6, the conveying belt 33 is divided into three parts in the width direction, and an arch-shaped receiving member 34 disposed so as to cover the portion of the support shaft 20 between the support rollers 22. It can be moved along the upper surface of the plate.

  Next, the operation of the illustrated example will be described.

  The clad material 4 in which the metal powder Pm is pressure-bonded to the surface of the base material S in the powder pressure bonding apparatus 1 (see FIG. 12), first, an endless transport belt 33 whose tip is driven in the direction of the arrow in FIG. In the state of being placed on top, it passes through the heating furnace 5 and the cooler 6 and is wound into a winding device (not shown).

When the leading end of the clad material 4 is wound into the winding device, when the tension of the transport belt 33 is loosened, the transport belt 33 is formed in an arch shape of the support device 18 as shown in FIGS. The support member 34 is supported on the upper surface and sags in the heating blocks 5 a, 5 b, 5 c of the heating furnace 5 and in the gas cooling blocks 6 a, 6 b of the cooler 6. The conveying belt 33 may be slack from the beginning, and the clad material 4 may be conveyed by the slacking conveying belt 33 and placed on the support roller 22.

  Subsequently, an inert gas such as nitrogen is supplied from a nozzle (not shown) into the clad material flow passage 9 covered with the heat-resistant metal partition walls 8 in the heating blocks 5a, 5b and 5c of the heating furnace 5, While heating by the heating element 10 such as an electric heater is started, nitrogen or the like is passed from the nozzle 13 into the clad material flow passage 12 covered with the cooling casing 11 in the gas cooling blocks 6a and 6b of the gas cooling region 6A of the cooler 6. Cooling inert gas is supplied, and cooling water is supplied from the water injection nozzle 16 into the clad material flow passage 15 covered with the cooling casing 14 in the water cooling block 6c in the water cooling region 6B of the cooler 6. While injecting toward the upper and lower surfaces of the clad material 4, an inert gas such as nitrogen is injected from the gas injection nozzle 17 toward the upper and lower surfaces of the clad material 4, and To start the winding of de material 4.

  At this time, when the tension is applied to the clad material 4 by the winding device, the clad material 4 is supported at both ends by the support rollers 22 of the support device 18 as shown in FIGS. And the intermediate part in the width direction are supported, and the inside of the gas cooling blocks 6a and 6b in the gas cooling area 6A of the cooler 6 and the heating blocks 5a, 5b and 5c of the heating furnace 5 are suspended. The support roller 22 of the support device 18 is driven by the motor 26 of the drive device 23 via the speed reducer 27, the drive pulley 28, the drive belt 30, the driven pulley 29, and the support shaft 20. It is driven to rotate in synchronization with the conveying speed of the clad material 4 according to FIG. Further, if the driving of the conveyor belt 33 is stopped, only a part of the heating belt 5 is heated and the temperature of the conveyor belt 33 is unlikely to rise, so that the conveyor belt 33 is always driven in a state where the tension is relaxed.

  In the heating furnace 5, the metal powder Pm pressure-bonded to the surface of the base material S of the clad material 4 is heated to a temperature at which the metal powder Pm is softened and fused together. In the cooler 6, It is necessary to cool the metal powder Pm to a temperature sufficiently lower than the temperature at which the metal powder Pm softens and fuses with each other.

Here, FIGS. 7 and 8 show analysis results in an example of the embodiment of the present invention. The base material S is made of pure copper, the base material S has a width of 200.0 [mm], and the base material S Thickness 0.4 [mm], emissivity ε 0.20, transfer speed 12.0 [m / min], cooler heat transfer coefficient α 30.0 [W / m ² · K], clad material on the inlet side of the heating furnace 5 4 is 20.0 [° C.], the lengths of the heating blocks 5a, 5b, and 5c are 4200 [mm], the set temperatures of the heating blocks 5a, 5b, and 5c are each 800.0 [° C.], and the gas cooling in the gas cooling region 6A is performed. The flow rate of the inert gas (nitrogen) supplied to the blocks 6a and 6b is 300.0 [L / min], the inlet temperature of the inert gas (nitrogen) is 30.0 [° C], and the outlet temperature of the inert gas (nitrogen) 30.0 [° C.], gas cooling blocks 6a and 6b are each 3000 [mm] in length, and are supplied to the water cooling region 6B. When the water temperature is 30.0 [° C.] and the length of the water cooling block 6 c is 1300 [mm], the temperature of the cladding material 4 on the outlet side of the heating furnace 5 is 765.9 [° C.], and the cladding material 4 after gas cooling is finished The temperature of the clad material 4 after water cooling is 58.6 [° C.] (refer to the solid line in FIG. 8) when the water cooling heat transfer coefficient is 500 [W / m ² · K]. When the water-cooling heat transfer coefficient is 1000 [W / m ² · K], it becomes 33.7 [° C.] (see the broken line in FIG. 8).

  On the other hand, instead of providing the water cooling block 6c constituting the water cooling region 6B, a third gas cooling block similar to the gas cooling blocks 6a and 6b is provided, and other conditions are the same as described above. Further, it was confirmed that the temperature of the clad material 4 after the gas cooling was reduced only to 152.3 [° C.] (see the phantom line in FIG. 8), and that the length of the entire equipment could not be increased.

  In the illustrated example, the heating block 5a, 5b, 5c has the same set temperature in order to show the effect of the water cooling block 6c, but the heating block 5a, 5b, 5c may not have the same set temperature. .

  That is, the heating furnace 5 is divided into a plurality of heating blocks 5a, 5b, and 5c, and the set temperatures of the heating blocks 5a, 5b, and 5c are individually set, and the heating element is provided for each heating block 5a, 5b, and 5c. Even if the output of 10 is adjusted to control the heating temperature, it is possible to avoid an increase in the total length of the equipment.

  For example, when the clad material 4 in which the metal powder Pm is pressure bonded to the surface of the base material S is heated to about 760 [° C.] and sintered, the clad material having a relatively large difference between the temperature of the clad material 4 and the sintering temperature. In the heating blocks 5a, 5b on the 4 carry-in side, the set temperature is set to a temperature higher than the sintering temperature to promote heating of the clad material 4. By doing in this way, the heating area raised to the temperature for sintering the clad material 4 can be shortened. Further, in the heating block 5c on the carry-out side of the clad material 4 where the difference between the temperature of the clad material 4 and the sintering temperature becomes small, the variation in quality can be reduced by finely controlling the set temperature for sintering. it can. Incidentally, as described above, the temperature control curve of the clad material 4 when the set temperature of the heating blocks 5a and 5b on the carry-in side of the clad material 4 is set higher than the sintering temperature and heating of the clad material 4 is promoted. Is as shown in FIG.

  Thus, by dividing the heating furnace 5 into a plurality of heating blocks 5a, 5b, 5c, it is possible to adjust the output of the heating element 10 and control the heating temperature for each heating block 5a, 5b, 5c. As a result, it is possible to avoid an increase in the total length of the equipment without losing quality.

  Further, the cooler 6 is also divided into a plurality of gas cooling blocks 6a and 6b and a water cooling block 6c, thereby making it possible to avoid an increase in the length of the gas cooling region 6A.

  That is, since the cooling capacity of the clad material 4 is considerably higher than that of gas cooling because the water cooling block 6c is water-cooled, the cooling in the gas cooling region 6A is performed at the outlet of the gas cooling block 6b at the end of the conveying direction of the clad material 4. It is sufficient that the temperature of the clad material 4 is cooled so that the temperature of the clad material 4 is lowered to a temperature at which the metal powder Pm is firmly fixed to the base material S, thereby preventing an increase in the length of the gas cooling region 6A. Note that the temperature of the clad material 4 at the conveyance direction entrance of the water cooling block 6c is equal to or lower than the alteration preventing temperature, that is, the metal powder Pm is used as a base material so that the brazing material layer is not damaged by the water sprayed in the water cooling block 6c. It is preferable that the temperature is about 500 [° C.] or less which is firmly fixed to S. Further, when the temperature of the clad material 4 after gas cooling is high, the surface of the clad material 4 may be discolored by the subsequent water cooling. To prevent the discoloration of the surface of the clad material 4, a water cooling block It is preferable that the temperature of the clad material 4 at the entrance in the conveyance direction 6c is equal to or lower than the anti-altering temperature, that is, approximately 250 [° C.] or lower.

  1 to 6, the metal powder Pm pressure-bonded to the surface of the base material S is heated and sintered in the heating furnace 5, and then in the gas cooling region 6 </ b> A of the cooler 6. It is cooled by an inert gas such as nitrogen and then directly cooled by water sprayed in the water cooling region 6B. As a result, the metal powder Pm is heated and cooled efficiently and stably, and the length of the entire equipment is long. This makes it possible to reduce equipment costs.

  Moreover, the heating furnace 5 is divided into a plurality of heating blocks 5 a, 5 b, 5 c in the conveying direction of the clad material 4, and the gas cooling region 6 A of the cooler 6 is divided into a plurality of gas cooling blocks in the conveying direction of the clad material 4. Since the water cooling area 6B of the cooler 6 is divided by the water cooling block 6c, each block is necessary when performing maintenance of the heating furnace 5 and the cooler 6. Accordingly, it is possible to further improve the usability by side shifting in the width direction.

  Further, by forming a clad material flow passage 9 covered with a heat-resistant metal partition wall 8 in the fire-resistant casing 7 and disposing a heating element 10 outside the heat-resistant metal partition wall 8 in the fire-resistant casing 7, Since the heating blocks 5a, 5b and 5c of the heating furnace 5 are configured and the heating blocks 5a, 5b and 5c are connected in the conveying direction of the clad material 4, the heating and sintering of the metal powder Pm is further stabilized. It is also possible.

  Further, since the clad material 4 is conveyed in a suspended state in the heating blocks 5a, 5b, 5c of the heating furnace 5 and the gas cooling blocks 6a, 6b in the gas cooling region 6A of the cooler 6, the metal powder is heated. There is no worry that the brazing material layer in which Pm is softened is damaged. The clad material 4 is disposed at the connecting portions of the heating blocks 5a, 5b and 5c, the connecting portions of the gas cooling blocks 6a and 6b, and the connecting portions of the gas cooling block 6b and the water cooling block 6c. The support roller 22 is supported by a support roller 22 of the support device 18. The support roller 22 is connected to a speed reducer 27, a drive pulley 28, a drive belt 30, a driven pulley 29, and a support shaft 20 by a motor 26 of a drive device 23. And is driven to rotate in synchronism with the conveying speed of the clad material 4 by the powder crimping apparatus 1 (see FIG. 12), and supports a plurality of weights (four in the example of FIG. 6) of the clad material 4. Since it is dispersed and supported by the rollers 22, it becomes possible to further stabilize the conveyance of the clad material 4, and even if the metal powder is heated by heating. Pm is the brazing material layer is not to worry about scratched even though in a state of softened.

  Further, the support shaft 20 and the support roller 22 of the support device 18 have an internal space 32 of a water jacket 31 of a cooling mechanism 24 provided integrally with the bearing 21 so as to surround the outer periphery of the support shaft 20 outside the support casing 19. Since it is cooled by circulating the cooling water through, it is prevented that the temperature rises more than necessary.

  Thus, heating and cooling of the metal powder Pm pressure-bonded to the surface of the base material S can be performed efficiently and stably, and the brazing material layer in which the metal powder Pm is softened by heating is prevented from being damaged. On the other hand, the clad material 4 can be stably conveyed in the heating furnace 5 or the cooler 6, and further, the length of the entire equipment can be prevented from being increased, and the equipment cost can be reduced.

  10 and 11 show a modified example of the support device 18, and the modified support device 18 includes the refractory metal partition wall 8 (see FIG. 2) as shown in FIGS. A support roller 22 capable of supporting both width ends of the clad material 4 in a support casing 19 connectable to the cooling casing 11 (see FIG. 3) and the cooling casing 14 (see FIG. 4). It is arranged so as to be able to approach and separate from each other by the operation of 35, so that it can cope with the clad material 4 having different width dimensions.

  The support roller 22 is a frustoconical roller via a support arm 36 that protrudes in the radial direction at the tip end portion inserted into the support casing 19 of the support shaft 20 constituting the roller position adjusting mechanism 35. It is attached to rotate freely.

  Further, the roller position adjusting mechanism 35 slides the support shaft 20 extending in the horizontal direction perpendicular to the conveying direction of the clad material 4 from both sides in the width direction of the support casing 19 via a bearing 21 and slides in the axial direction. A guide shaft 38 extending in parallel to the support shaft 20 is fixedly disposed on a fixing bracket 37 that is freely inserted and projects outward from the support casing 19, and extends parallel to the support shaft 20 and is mutually attached to both ends. A screw shaft 39 engraved with a male screw portion 39a in the opposite direction is rotatably arranged, and nut members 40 that are screwed into the male screw portion 39a are fitted to both ends of the screw shaft 39, and the guide shaft 38 is fitted. The guide block 41 is slidably fitted to both ends of the support shaft 20, and the support shaft 20 is attached to the base end portion of the support shaft 20. A support block 42 for rotatably supporting 0 is fitted, the nut member 40, the guide block 41, and the support block 42 are connected by a base bracket 43, and the support roller 20 is attached to the base end of the support shaft 20. A switching arm 44 is mounted for rotating the position 22 between the support position and the standby position of the clad material 4 and switching. The switching arm 44 is supported by the butterfly bolt 45 with respect to the base bracket 43 and the standby position. A base bracket integrated with the nut member 40 can be fixed to any one of the positions, and a handle 46 is attached to one end of the screw shaft 39, and the handle 46 is rotated in a predetermined direction to rotate the screw shaft 39. 43 to move the support While the trollers 22 are slid in the direction of approaching each other, the handle 46 is rotated in the opposite direction to rotate the screw shaft 39, thereby moving the base bracket 43 integral with the nut member 40 to move the support rollers 22 to each other. It can be slid in the direction of separation.

  In the support device 18 shown in FIGS. 10 and 11, an inert gas such as nitrogen can be supplied into the support casing 19 from the gas supply nozzle 25.

  When the support device 18 is configured as shown in FIGS. 10 and 11, only both width ends of the clad material 4 are supported by a frustoconical support roller 22, and the clad material 4 contacts the support roller 22. Since the number of locations is minimized, the brazing material layer is damaged even if a driving device 23 as shown in FIGS. 5 and 6 is provided and the support roller 22 is not rotated in synchronization with the conveying speed of the clad material 4. There is no worry of sticking, and the clad material 4 can be stably conveyed in the heating furnace 5 or the cooler 6.

  In addition, the heating / cooling device for the clad material manufacturing facility of the present invention is not limited to the above illustrated example, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

It is a general | schematic side sectional view which shows an example of the form which implements this invention. It is a front sectional view showing a heating block of a heating furnace in an example of an embodiment for carrying out the present invention. It is a front sectional view showing a gas cooling block in a gas cooling region of a cooler in an example of an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a front sectional view which shows the water cooling block of the water cooling area | region of the cooler in an example which implements this invention, Comprising: (a) is a figure which shows the part by which the water injection nozzle of the water cooling block was arrange | positioned, ( b) is a diagram showing a portion where a gas injection nozzle of a water cooling block is disposed. It is a sectional side view which shows the support apparatus in an example of embodiment which implements this invention. It is a front sectional view showing a support device in an example of an embodiment of the present invention, and is a view corresponding to VI-VI in FIG. It is a graph which shows the analysis result in an example of embodiment which implements this invention. It is a graph which shows the temperature history of the clad material in an example of the form which carries out the present invention. FIG. 3 is a temperature control curve of a clad material when heating the clad material is promoted by setting the set temperature of the heating block on the clad material carry-in side to a temperature higher than the sintering temperature in an example of carrying out the present invention. . It is a sectional side view which shows the modification of the support apparatus in an example of embodiment which implements this invention. It is a front sectional view showing a modification of a support device in an example of an embodiment of the present invention, and is a view corresponding to XI-XI in FIG. It is a side view which shows an example of the powder crimping | compression-bonding apparatus which comprises a clad material manufacturing equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Powder pressure bonding apparatus 4 Clad material 5 Heating furnace 5a Heating block 5b Heating block 5c Heating block 6 Cooler 6A Gas cooling area 6B Water cooling area 6a Gas cooling block (cooling block)
6b Gas cooling block (cooling block)
6c Water cooling block (cooling block)
DESCRIPTION OF SYMBOLS 18 Support apparatus 19 Support casing 20 Support shaft 22 Support roller 23 Drive apparatus 24 Cooling mechanism 26 Motor 27 Reduction gear 28 Drive pulley 29 Drive pulley 30 Drive belt 31 Water jacket 32 Internal space 33 Conveyor belt G Roll gap Pm Metal powder S Base material

Claims (8)

Clad material production where a metal powder is pressure-bonded to the surface of a base material with a powder pressure bonding device, the metal powder is heated and sintered in a heating furnace, and then cooled with a cooler to produce a clad material. In equipment heating and cooling equipment,
The heating furnace is divided into a plurality of heating blocks in the clad material conveyance direction, and the cooler is divided into a plurality of cooling blocks in the clad material conveyance direction, and the heating block connection portion and the cooling block connection in a section, it disposed support apparatus having a plurality of support rollers for both width ends underside partially supportable at least clad material, and configured to be conveyed in suspended state clad material between the support device A heating / cooling device for a clad material manufacturing facility. 2. An endless conveying belt is provided in the heating furnace and the cooler so as to be circulated to the outside through the heating furnace and the cooler, and the conveying belt is passed between the plurality of support rollers. A heating / cooling device for the clad material manufacturing facility according to claim. The heating / cooling device for a clad material manufacturing facility according to claim 2, wherein the conveyor belt is supported on an upper surface of a receiving member disposed so as to cover a portion of a support shaft between the plurality of support rollers . The heating / cooling device for a clad material manufacturing facility according to any one of claims 1 to 3, further comprising a driving device that rotationally drives a support roller of the support device in synchronization with a conveying speed of the clad material by the powder pressure bonding device. . The heating and cooling device for a clad material manufacturing facility according to any one of claims 1 to 4, further comprising a cooling mechanism for cooling the support device. Clad material production where a metal powder is pressure-bonded to the surface of a base material with a powder pressure bonding device, the metal powder is heated and sintered in a heating furnace, and then cooled with a cooler to produce a clad material. In equipment heating and cooling equipment,
  The heating furnace is divided into a plurality of heating blocks in the clad material conveyance direction, and the cooler is divided into a plurality of cooling blocks in the clad material conveyance direction, and the heating block connection portion and the cooling block connection A support device having a plurality of support rollers capable of partially supporting the lower surfaces of both width end portions of the clad material, and configured to be able to convey the clad material in a suspended state between the support devices;
  In the support device, a frustoconical support roller capable of partially supporting the lower surfaces of both width end portions of the clad material is arranged in the support casing so as to be able to approach and separate from each other by the operation of the roller position adjusting mechanism. A heating / cooling device for a clad material manufacturing facility. The heating / cooling device for a clad material manufacturing facility according to any one of claims 1 to 6, wherein metal powder is pressure-bonded to both surfaces of the base material. The heating and cooling apparatus of the clad material manufacturing facility according to any one of claims 1 to 7, wherein the support device is disposed at a connection portion between the heating block and the cooling block.

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