TW438622B - Metal carrier for catalytic device - Google Patents

Abstract

The present invention relates to a metal carrier for catalytic device, namely, a metal carrier in which the inner part of a roll-shaped honeycomb body can be prevented from being damaged or dropped even when the temperature of the central portion of the metal carrier goes up due to firing in engine. Being overlapped with a wavy plate 1 and a planar plate 2, strip-like welding materials 3<SB>1</SB>, 3<SB>2</SB> are provided on the upper and lower parts of the planar plate 2 so as to form the roll-shaped honeycomb body 4; meanwhile, upon initiation of winding the plate of the planar plate 2 and the wavy plate 1, the welding materials 3<SB>1</SB>, 3<SB>2</SB> are provided from a position before which a region without applying the welding materials 3<SB>1</SB>, 3<SB>2</SB> is defined. Furthermore, a filler welding material 3<SB>3</SB>3 with a diameter (d) is applied on the end face of a gas inlet side, and by a region (b) in connection with the end face of the gas inlet side, the region (a) without applying the welding materials 3<SB>1</SB>, 3<SB>2</SB> is held and fixed thereto. Also, the diameter (d) is larger than the region (a).

Description

438622 V. Description of the invention (1) 3. Details of the invention "The invention to which the invention belongs is related to a honeycomb body and the system is to a carrier. "In the past, metal strips were used as corrugated plates, and the coils were wound with a vacuum on the front part. Ni (nickel wavy material. The section of this. 2 (D) a kind of technology)" Prior to the carrier, the planar welding material 31 was formed on the shaft to become a circular furnace, and the plate is described.) The base welding plate 31 includes a shape. In addition, as shown in the illustrated technical field, it is used in a catalyst device. The catalyst device for internal combustion engines uses a gold cylindrical honeycomb-shaped metal carrier; that is, the exhaust purification device is made of a carrier, especially the metal technology for a catalyst device composed of the present invention. Just as the plate 32 and the material 33 are stacked in a cylindrical shape, the welded material of the fusion material is the same as the above-mentioned system, as shown above, and the exhaust-gas purification figure 2 (A) and the wavy plate. And, at the same time, it is flattened to facilitate the formation of the thin strip-shaped sheet material 32 described above. The aforementioned material, and the shape of the material 31 shown in FIG. 2 (C), which is shaped like fertilized iron, is incorporated into an external device, and the aforementioned material 31 is just like a plate-shaped honeycomb welding and The catalyst used in wave welding used in the honeycomb barrel 35 of the previously sectioned honeycomb section is a relatively thin metal, sandwiched by a thin flat plate 3 2 and wave 2 (B ) The display material 32 and the wavy plate body 34, and in addition, the connecting material 33 is also used so that the contact material 33 of the shape plate 31 is a flat plate material 32 and it is a stainless steel material. The outline of the axis 34 of the nested body 34 is shown in the figure 34.

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Page 5 438622 V. Description of the invention (2) On the tower surface other than the honeycomb material 32 and the wavy plate 31 of the honeycomb body 34, that is, the length of the flat plate is formed, and the alumina surface is formed. It is easy to form a metal carrier across the whole axis. The catalyst-bearing layer composed of and has a precious metal catalyst in order to facilitate the development of the catalyst. The catalyst-bearing layer is capable of supporting energy. In addition, as described above, the exhaust passage of the power combustion engine, which is referred to as an exhaust purification device, is an internal hydrogen that is disposed in an engine, etc., and C0 (—gasification to purify the aforementioned exhaust device) Exhaust of carbon dioxide (carbon, intellectuals, NOx (nitrogen and oxygen gas), etc.) The area of many honeycomb-shaped pathways = body: medium and as far as possible to ensure that more j, qi ^ s Λ ^ ^ plane The shape plate 32 and the wavy plate are thinner as much as possible in the range Θ 'capable of maintaining strength. The catalyst device used on the engines of automobiles and locomotives such as 4 and 2 wheels The gold j carrier is subjected to the so-called heating and cooling treatment repeatedly under the high temperature environment around 1 00 1, that is, under the severe conditions y 'using the aforementioned metal device for the catalyst device. Therefore In order to make the planar sheet material 32 and the corrugated sheet material 31 of the foil-shaped sheet material which is a structural material have the so-called oxidation resistance in a high-temperature region of 800 t or more ', the aluminum-containing ( A1) Ferrite is a stainless steel (such as Fe ~ 20Cr-5Al (chromium-aluminum-iron alloy)) 'is used as a flat plate 3 2 and a wavy plate 31, and a welding material 33' is used which has fairly good oxidation resistance and high temperature strength and is made of nickel ( Ni) as the main component of the welding material, for example, Ni-Cr-Si (nickel chromium silicon alloy) or Ni-Cr-Si-B (nickel chromite

D: \ 2D-CODE \ 88-04 \ 88101868. Ptd page 6 V. Description of the invention (3)-The alloy material of f is used as the welding material 33 mentioned above. The connection material 33 'in addition to using the thin band-shaped material shown in Figure 2 above: 5 is used for welding', in addition to powder or a 'shaped, connection material' as the foregoing The welding material 33 is used, but because the welding material 33 absorbs the thermal stress generated on the carrier at the time of south temperature and heating and cooling, the welding S material 33 ′ cannot be applied to the plate. As a result, a part of the welding material is usually applied along the entire axial direction of the planar plate material 32 and the wavy plate material 31. "Problems to be Solved by the Invention" In the conventional metal carrier for a catalyst device of the prior art described above, the honeycomb body 34 starts from the outer layer portion and reaches the inner layer portion of the honeycomb body 34. The flow velocity of the exhaust gas of 34 is getting smaller and smaller. Therefore, in the aforementioned honeycomb body 34, due to the contact between the honeycomb body 34 and the high-temperature exhaust gas, and the catalyst reaction, The exothermic phenomenon and the heat energy dissipating phenomenon from the outer tube 35, as a result, the closer the inner layer portion of the honeycomb body 34 is, the higher the temperature becomes, and the closer to the outer layer portion of the honeycomb body 34, the lower the temperature becomes. The occurrence of temperature distribution. In addition, 'when the so-called temperature and temperature part phenomenon is observed from the axis direction of the honeycomb body 34,' the temperature of the end face at the gas inlet is the lowest, and from the end face of the gas inlet, the temperature is approximately toward the inside of the axial direction. The temperature between the bandit's left and right rises rapidly and becomes the highest temperature, and the highest temperature as described above will be maintained until the central part in the axial direction, and then it gradually faces the end face of the gas outlet and gradually Reduce the temperature. when

D: \ 2D-CODE \ 88-04 \ 88101868. Ptd page 7 438622 V. Description of the invention (4) When the temperature distribution of the foregoing is shown by an example, it becomes the line shown in Fig. 4 Illustration. In the exhaust device, the engine provided with the metal carrier for the catalyst device constituted by the honeycomb body 34 shown in FIG. 2 described above will become 'in a state where there is a misfire phenomenon while the engine is running.' As described below. That is, when the unburned mixed gas passes through the high-temperature honeycomb body 34, a combustion phenomenon is caused, and at this time, it is further increased due to the so-called abnormal combustion effect accompanied by an explosion phenomenon. The aforementioned high-temperature honeycomb body 34 is orbited. At this time, the temperature of the inner layer portion of the aforementioned high-temperature honeycomb body 34 will rise more than the temperature of the outer layer portion of the honeycomb body 34. As taught earlier, if the experimental example of the assumption that the temperature of the honeycomb body 34 becomes higher due to the engine misfire phenomenon, the temperature of the honeycomb body 34 is l38 { At the time of rc, when the engine misfire rate is 25% and the engine is continuously operated for 1 hour, there is a so-called scarred insectivore caused by oxidation in the welding part of the honeycomb body 34. The phenomenon occurs. The temperature at the honeycomb body 34 was 1 400. (: In the state, and in the state of the same misfire proportion and duration as the state of the temperature 1 3 8 0 C of the honeycomb-like body 34 described above, the planar plate 32 and the wavy plate 31 of the plate are The part that is considered to be the diffusion site of the welding material 33 has a carbonization phenomenon, so that the material of the diffusion site of the welding material 33 undergoes a considerable degradation phenomenon. 4 In addition, it is in the honeycomb body 34. The temperature is 15Q (in the state of rc, the engine misfire ratio is 50%, and the welding site of the welding material 33 is

4386 2 2 V. Description of the invention (5) = The carbonation phenomenon occurred in the falling system at an instant, and the honeycomb-shaped body 34 was fired. According to the aforementioned experimental example, it can be known that the degree of fire is increased due to the engine's misfire. In this state, the honeycomb body 34 may cause significant damage {recruitment}, and sometimes, the honeycomb body 34 may lose its function. In addition, as shown in FIG. 2, as shown in FIG. 2, a thin band-shaped tan material 33 and a # -shaped honeycomb body 34 are inserted between the wavy plate 31 and the flat plate 32; in the state described above In general, as for the end of the welding material 33 that should be inserted between the wavy plate 31 and the flat plate 32, when the cylindrical winding operation is started, it is as shown in FIG. Usually, the welding material 33 is arranged in a redundant state, that is, 'the end of the welding material 33 inserted between the wavy plate 31 and the flat plate 32 is the so-called end of the plate. The part starts out and projects to the outside. Compared with other parts of the honeycomb body 34, the density of the welding material 33 at the center of the honeycomb body 34 is larger than that of the welding material 33 in some parts. In the honeycomb-like body 34 of the structure shown in FIG. 2 as described above, in the state where a fire phenomenon occurs in the engine, the honeycomb-like body 34 having a temperature higher than the outer layer 邛 = more 冋In the center, the temperature will rise even further, and it will easily reach 2,000 ° C. Therefore, it will exceed the remelting temperature of the nickel-based welding material 33 by 105 (pc ~ 113 °). c. Therefore, the so-called melting phenomenon started from the welding part of the honeycomb body 34 of the honeycomb-like body 34 where a considerable amount of the joint material 33 is disposed, and the damage was caused on page 9 D: \ 2D-CODE \ 88-04 \ 88101868. Ptd 5. Description of the invention (6) '-to the center of the honeycomb body ^ ~ the joint between the material 31 *, so that the &lt; planar plate 32 and the wave plate fall off The so-called honeycomb-shaped body 34 is deformed or the purpose of the invention is to provide a metal carrier formed by a cylindrical honeycomb-shaped body, which is produced by ~ I and is used in 4 and 2 rounds. Composed of catalyst-like components on the engine of a locomotive or locomotive: A bull-shaped body is described below The planar material and the corrugated material are used, and the upper material is the flat material including the aluminum element 4 and the corrugated steel plate; and the ferrite is a non-welding material, and the welding Material is divided into ^; Nickel is used as the main component. In addition, in the metal carrier for the catalyst device, even if a misfire occurs in the engine, the installation is in the exhaust system: = = = 部The temperature has risen, and there is no such phenomenon that the honeycomb body is deformed or detached due to damage to the welding part of the central part of the cylindrical honeycomb body. Means "The metal carrier for the catalyst device of the present invention has a honeycomb system having a plurality of mesh-shaped passages, and the plurality of mesh-shaped passages are formed by bending a relatively thin metal plate in a band shape. There are continuous wave-shaped undulated wavy plates, and the flat plate formed by a relatively flat strip-shaped relatively thin metal plate, abutting and overlapping each other, and also by welding Material, bonded with the corrugated sheet and the flat

d: \ 2D-CODE \ 88-04 \ 88101868. ptd page 10 438622____ 5. Description of the invention (7) Shaped sheet material, in order to roll and form a so-called cylindrical mesh around the shaft In the aforementioned honeycomb-shaped body, in the section of the right-angled section of the shaft of the honeycomb-shaped body, starting from the central portion and facing outward in the radial direction, there is no use for the aforementioned welding. Material, and the joining operation is performed. In addition to the metal carrier for the catalyst device of the present invention, the honeycomb-shaped body does not perform the joining operation through the welding material from the center portion and faces outward in the radial direction. The aforementioned wavy plate and flat plate within the range specified above are preferably a predetermined length starting from the end face of the gas inlet of the honeycomb body and extending to the axial direction. By the welding material, A joining operation is being performed. Next, the aforementioned honeycomb body of the wavy sheet material and the flat sheet material of the present invention within the predetermined range starting from the central axis and facing the radial direction without performing the joining operation by the welding material, It is arranged in, for example, the exhaust passage of the engine. However, even in the state where the temperature of the flat plate and the wavy plate of the center plate is abnormally increased due to the occurrence of a misfire in the engine, In the aforementioned center portion, there is no place where the joining operation has been performed by using a welding material. Therefore, the metal carrier for the catalyst device of the present invention can also make the inner layer of the cylindrical honeycomb body. And the so-called damage or detachment does not occur accidentally due to the melting of the welding materials, and the temperature of the central part of the honeycomb body reaches the temperature of the flat plate and wavy plate of the board. So far

D; \ 2D-CODE \ 88-04 \ 88101868. Ptd P.11 438622 Five 'Invention Note (8) Lifetime' will not be affected in any way. This $ 'does not refer to the above-mentioned, flat and wavy plates in the specified range starting from the center wheel described in f and facing the radial direction without performing the joining operation by the welding material. The length of the honeycomb-shaped body, which enters the end of D and ends in the axial direction, is extremely long. The length of the temporary ^ gauge is' through the welding material, the flat plate holding and wave of the aforementioned plate are carried out. The joining operation of the shaped plates is to prevent the displacement of the planar plate and the wavy plate in the axial direction of the plate. At time A, 'because the temperature at the gas inlet of the honeycomb body is lower than the temperature inside the honeycomb body. W * m L β The welded part that will be dropped / placed in the gas 0 is not too easy to make the above-mentioned end face of the gas inlet from Fenglixiancheng to the axis direction-the right angle on the shaft of the operation is short The welding of the length does not advance through the welding material; it becomes at least more than the above and is specified in the radial direction. 2 is connected to f starting from the central axis and facing the outer part, which is 1 layer. Range to facilitate the use of welding within the range specified above; fix this without the use of the radial direction 'result, the catalyst of the present invention]: the so-called axial deformation of the part where the joining operation is performed With the use of a metal carrier, it is possible to prevent the occurrence of "the embodiment of the invention" (see Fig. 1 (C)). Next, 'refer to the drawings and related explanations. FIG. 1 is a schematic diagram of a metal carrier for a catalyst device according to an embodiment of the present invention.

D: \ 2D-CODE \ 88-04 \ 88101868. Ptd Page 丨 2 86 2 2 V. Description of the invention (9) Schematic diagram, Figure 1 (A) is a 4ir u-shaped plate used to show the flatness of the plate And the right-angle pattern a, 丨 &amp; @, and J on the shaft of the structure of the turbid wave-like plate structure, and FIG. 3 (B) is a method for manufacturing the metal carrier for the catalyst device of the present invention. FIG. 1 (C) is a sectional view in the axial direction of the catalyst device ^ straight metal ^ carrier of the present invention. In FIG. 1 (A), the wavy plate 1 is a relatively thin metal plate composed of the ferrite stainless steel containing aluminum element, and also has a continuous strip-shaped wavy uneven surface. The flat plate 2 is composed of a relatively flat and thin metal plate in the form of a relatively flat band of the same ferrite stainless steel containing aluminum element. The two wavy plates 1 and the flat plate village 2 plates as described above are overlapped with each other, and the two wavy plates are positioned above and below the flat plate 2 1 and the flat plate 2 have a long side direction, that is, a winding direction, and are disposed at right angles to the shaft body, respectively, and are provided with two relatively thin foil-shaped welding materials 3 with nickel as a main component! And welding materials 32. The positions of the ends of the winding center of the aforementioned welding material 3] and the welding material 3a are from the end of the winding of the flat plate 2 and the wavy plate 丨 of the plate to the end of the winding. The position corresponding to the length (&) of the sheet material in the aforementioned honeycomb-like body 4 to which the welding material 3! And the welding material 32 are not specified in the radial range ja); and Only from the position of the ends of the welding material and the welding material &amp; winding ten-heart end just described, and to the end of winding of the two wavy plates and the flat plate 2 The range up to the margin (b)), between

43862 2

Two pieces of welding material 31 and welding material 32 having a relatively thin foil shape containing nickel as a main component are installed. Fig. 1 (B) is a diagram for showing the state of the flat plate 2 and the wavy plate 1 in the winding operation of the plate of Fig. 1 (A). Fig. 1 (c) shows a cross section in the axial direction of the honeycomb body 4 of the metal carrier for a catalyst device of the present invention formed as described above. In the foregoing figure, the component number (a) is used to show that in the inner layer portion of the honeycomb body 4 of the gold ^ carrier for the catalyst device of the present invention, 'starting from the center portion and facing outward in the radial direction. The range specified by the bonding material ^ and the welding material 32 is not applied; and the component number (^) 1 is a honeycomb shape for showing that the metal carrier for the catalyst device of the present invention In the outer layer portion of the body 4, the range of the planar sheet material 2 and the corrugated sheet material 1 of the sheet material is joined by the welding material 3m and the welding material &amp;. α In addition, as shown in Fig. 1 (C), 'It is at the end of the honeycomb gas inlet, starting from the central part, in the diameter (d, and along the axial direction (丨), the extremely short & amp Department; box-shaped filled welding material with a diameter (d): 3: for easy use as a placement welding material. ㈣ The range of the diameter ⑷ with the filling material 33 is added, compared with the aforementioned honeycomb material department. There are no welding materials' and welding materials ~), which is to expand at least the range of the planar plate 2 with a plate 2 ^^ The amount of layers. Therefore, because of the diameter (wavy plate 1 1 妯)蚪 3 is filled with welding materials ia ia 4 * follower straight C d), and the part of ⑴ of the layered part of 刖 4 through the honeycomb body of 刖 4 'in order to keep it fixed along the axis Described

438622 V. Description of the invention (11) There is no material 32 in the central part of the honeycomb-shaped body 4 (a) The flat sheet of the sheet 2 is used as a material and the welding is used 1. As a result, the present invention can be touched. The medium sigma wave plate has a relatively stable structure in the so-called axial direction. For a metal carrier, the length of the joint (I) by the filler welding as described above should be "3" and the axis length is about 2mm. In addition, the filling gas mentioned above is an approximation method, and it is used at the time of the construction of the welding and joining materials = ^, and at the same time, the filler welding is used for the materials used for welding materials. And the gas 3 placed in the honeycomb-shaped body 4 inlet: end :: welding: And, melt the filling material for filling welding so that the right type of welding material%, starting from the end face, flows into the above-mentioned true charge 2 and waves Between the plate-like plates i, the aforementioned plate-like plate 2 and the wave-like plate i are joined. … The flat plate of the plate is also 'because the outer surface of the honeycomb body 4 is also joined to the outer tube 5, so the entire honeycomb body 4 can be kept and fixed quite reliably, and The temperature of the central part of the honeycomb body inside the metal carrier rises abnormally due to a fire phenomenon, and it can also be obtained that the central part of the so-called cylindrical honeycomb body 4 does not deform or fall off. Of metal carrier. Through the operation as described above, the honeycomb-shaped body 4 is formed and the fruit is spitted, even if the straight pinch of the honeycomb-shaped body 4 is relatively small and relatively long: a metal carrier that causes the temperature to rise relatively easily [can also prevent Deformation or peeling due to damage to the welded part of the honeycomb body 4

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438622 V. Description of the invention (12) The metal carrier for the media device may and also has the so-called phenomenon. Therefore, the present invention makes the overall catalyst device smaller in size and reduces the production cost. "Effects of the Invention" It is just from the outside, the material surface of the plate is started to work with materials. The so-called damage of the engine's fire phenomenon is abnormal. The so-called damage caused by the above cylindrical shape has not been borrowed. As a result, the air is used to cause the ground to rise, and the inner layer is injured or the welding material is within the range of the honeycomb body, and the axis direction is the same as the state of the metal on the road. In the state of the carrier, the flat material of the sheet is not opened by the accidental center part of the sheet. Under the catalyst of the invention of the flat sheet material defined by the honeycomb, even the honeycomb in the part can be used. It can occur in welding materials. The length of the metal device used for the medium device is toward the plate and the wave of the flat plate-shaped body. The melting of the metal used for the wave-shaped plate device in the cylindrical material mentioned above due to the inner layer of the engine is now a plant. Radial wave-like sheet material and wave entry end are caused by the temperature-like honeycomb image of the missing part caused by the bonding carrier of the welding material. Therefore, the temperature rise limit of the inner layer of the honeycomb body is It can be until the melting point of the plate composed of a flat plate and a wavy plate, and even for a so-called slender metal carrier with a relatively easy temperature rise and a relatively small diameter, the touch of the present invention The metal carrier for the medium device can also produce and apply a slender metal carrier with a relatively small diameter and a relatively easy temperature rise. As a result, the metal carrier can be miniaturized.

438622 V. Description of the invention (13) In addition to the effect of cost reduction, the metal carrier for media devices is also provided with a so-called "exhaust passage" which can be used in the exhaust passage of an engine that causes fire easily. At the same time, since the metal carrier for the catalyst device of the present invention can reduce the amount of welding material required for the joining operation of the flat plate and the wavy plate of the plate, the so-called saving and reduction can also be achieved. Material cost 4. A brief description of the diagram (Fig. 1) is a schematic diagram of the metal carrier for the catalyst device of the present invention; Fig. 1 (A) is a plane plate and a wavy plate for showing the plate Sectional view in right-angle direction on the shaft of the structure; Figure 1⑴ is a perspective view of the catalyst device industry of the present invention; and Figure I (C) is a sectional view of the catalyst device of the present invention. Axis direction of the carrier "Figure 2" Figure 2 is a conventional catalyst catalyst of the prior art ^ ^ ^ ^. Schematic; Figure 2 (A) is a schematic diagram of a plate used to display the plate Plates and wavy shapes in the right-angle direction on the structured shaft body. Figure 2 (B) is a cross-sectional view of the conventional prior art; perspective view during manufacturing; and Figure 2 (C) of the metal carrier for butterfly placement is Partial cross-sectional view of the conventional prior art in the direction of the touch axis;

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1 4386 2 2_ V. Description of the invention (14) And FIG. 2 (D) is a perspective view of the appearance of a conventional metal carrier for a catalyst device of the prior art. "Figure 3" Figure 3 is a schematic diagram showing the state of the winding of a metal carrier for a conventional prior art catalyst device; Figure 3 (A) is a diagram showing a welding material and a plate A partial perspective view of the relationship between a flat plate or a wavy plate; and FIG. 3% is a cross-sectional view of a right angle pattern on the axis of a plate of the conventional metal carrier used in the catalyst device of the prior art. [Fig. 4] Fig. 4 is a graph showing the temperature distribution in the axial direction of the central part of the honeycomb body. "Explanation of Component Numbers" 1: Wave-shaped material (plate) 2: Flat material (plate) 3i '· Welding material 32: Welding material 33 · Filler welding material 4: Honeycomb body 5: Outer tube 31 : Corrugated sheet (sheet) 32: Flat sheet (sheet) 33: Welding material 34: Honeycomb body

D: \ 2D-CODE \ 88-04 \ 88101868. Ptd page 18 438622 Five 'Explanation of invention (15) 35: Outer tube fixed standard degree skin wave shape

Ca): No specified range (a ^) where welding materials are applied: equivalent to the length of a flat plate or wavy plate equivalent to the aforementioned plate covered by no welding materials (b) . Range of joining by welding material (h): Planar plate or plate range of plate with welding material (d): Diameter of filling welding material (I): Application of welding Length of material in axial direction

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Claims (1)

438622 ^ Includes, and 881 feet VI, Shen Zhenzhen 剌 筘 Βί_ month amendments WXc9TT7TF 89. 6. 26 amendments 1. A metal carrier for catalyst devices' characteristics: the honeycomb system has many mesh-like channels 'And the many mesh-shaped passages are formed by bending a strip-shaped relatively thin metal plate to form a continuous wave-shaped concave-convex wavy plate, and a flat strip-shaped relatively thin metal plate formed of a flat plate. 'Abut on and overlap each other, and also join the aforementioned wavy plate and flat plate with a welding material, so as to be formed by being wound into a cylindrical shape around the shaft body,' In the cross section of the shaft of the body at a right angle, within the prescribed range from the center to the outside of the semi-control direction, the welding operation was not performed with the welding material, but only the outer layer was connected with the welding material. At the gas inlet side end of the body, within the range of the diameter opened by the aforementioned central portion, another welding material is applied along the specified length along the axial direction— ^ The diameter range is larger than the range in which the welding material is not applied at the center of the honeycomb body of the mine Y. It is up to 1 layer of the aforementioned flat plate or wavy plate, and the aforementioned flat plate or wavy plate is used. The welding material in the range of the diameter and the welding material in the range of the outer layer are joined in the axial direction. 'maintain