KR101921754B1 - Exhaust system and method for joining components of an exhaust system - Google Patents

Abstract

The exhaust system includes a first exhaust component and a second exhaust component spaced from each other by a solder interval that may have a size of 1.20 mm. A hot solder material is provided in the vicinity of the solder gap and is heated by the inductor to form an induced braze joint between the first exhaust component and the second exhaust component.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an exhaust system and a method for combining components of an exhaust system,

The present invention relates in particular to a method for connecting two components of an exhaust system for an automobile, as well as for an automobile exhaust system.

The components to be interconnected are, inter alia, pipes of the exhaust gas system, for example, which direct the exhaust gas flow from the outlet manifold to a catalytic converter or a silencer. With respect to the high temperature and high dynamic stresses in which the components of the exhaust system are exposed, these components have always been connected via weld seams. Indeed, some disadvantages arise when components of the exhaust system are welded together. For one reason, a considerable amount of floor space is required for an automatic welder or welding robot, for example, to perform the method. In two cases, the components to be welded to each other must be moved relative to the welding head. For this reason, complex devices are required for fixing components to be welded together, accompanied by a high dynamic load. These devices have a relatively high space requirement in the welding cabin for their storage. Moreover, since a new device is generally required for each design, a large number of devices must be kept in stock. In addition, weld seams have been found to adversely affect strength. In particular, the weld seam causes a sharp change in the cross-section of the connected components and correspondingly a change in the rigidity of the exhaust gas system, resulting in stress concentration in the region of the weld seam. Possibly the source for the formation of cracks is in particular the area of the weld seam root or undercut. Finally, the heat introduced into the two components during welding results in weld induced distortion, which, if necessary, must be individually calibrated on a straightening bench after welding. Despite all of these disadvantages, it has been generally accepted in the field of exhaust gas systems to weld components together, and this is the only way to create connections of components that withstand the thermal and dynamic stresses that occur, Is the dominant opinion of.

It is an object of the present invention to provide a method for connecting two components of an exhaust gas system, particularly for automobiles, as well as automotive exhaust gas systems.

In order to avoid the aforementioned disadvantages, the two components of the exhaust system are connected in a manner other than welding.

The exhaust system includes a first exhaust component and a second exhaust component having an inductive braze joint between the two components. A method of connecting a first exhaust component of a vehicle exhaust system with a second exhaust component comprises assembling together two exhaust components such that they are separated by a solder gap, providing a high temperature solder material near the solder gap And heating the two components in the area of the solder material with the inductor to a temperature exceeding the melting temperature of the solder material to fill the solder gap and form a soldered connection between the first and second components .

The present invention is based on the surprising recognition that high temperature brazed joints withstand the stresses acting on the vehicle exhaust system, in contrast to the prevailing prejudice among experts. Until now, it has generally been assumed that solderable connections are impossible due to temperatures that can only occur in the components of the exhaust gas system and possibly in excess of 600 ° C. The maximum allowable operating temperature of the soldered component is generally about 200 ° C, although high temperature solder is used (see, for example, German Association for Welding Technology, October 2002 See the draft of DVS 938-2 "Electric Arc Soldering" (Lichtbogenschwei.beta.en) of the Verband fur Schwei.beta.technik, where the operating temperature for the solderable connection for the exhaust system is maximum The use of solderable connections indicated at 180 [deg.] C and having a temperature in excess of 180 [deg.] C is not explicitly recommended. Applicants have disregarded the prejudice described above because they found in experiments that the soldered component could be exposed to a temperature above 600 DEG C for even longer periods of time without any damage to the mechanical stability of the brazed joint. The fact that, after solidification of the solder material, a re-melting temperature higher than the initial melting temperature occurs, has a favorable effect on the high temperature strength of the further soldered joints. The reason for this has yet to be definitively clear.

One reason may be the fact that certain by-alloys evaporate during melting. Another reason may be the diffusion of atoms of the base material into the solder material.

It is also known in the field of inductive soldering that the spacing between two components to be attached to each other must be accurately controlled within a very tight tolerance range. In particular, the known specifications for inductive soldering indicate that the gap width should be in the range of 0.02 to 0.10 mm to allow the joint to be performed as required. This type of controlled range is not possible within the field of exhaust systems. As such, inductive soldering for connecting exhaust components has not been considered as a viable option.

Again, this known convention is unexpectedly ignored since Applicant has found that the solder spacing between the first exhaust component and the second exhaust component can be as large as 1.20 mm. In one example, the solder spacing is within a defined range of greater than 0.10 mm and a maximum of 0.70 mm. This provides significant cost savings because the tolerances for brazed joints have less stringent requirements.

The use of solderable connections between two exhaust components instead of welded connections also entails a number of additional advantages. One reason is that the two components, such as in the case of using a welding method, can be interconnected in a lower cost and smaller space requirement situation. It is not required that the robots move in the circumferential direction around the two components in the region of their connection. Alternatively, it is possible to accommodate a connection area between two components in a compact shielded gas chamber. The dynamic strength of the brazed joint is greater than that of the welded joint because there is no drastic change in stiffness up to a specific temperature below the operating temperature occurring in the exhaust system. It is also possible to form two components having a smaller wall thickness if they are soldered instead of being welded together. In other words, the wall thickness of the components to be welded to each other must be designed in the field of exhaust gas systems in relation to the risk of melt penetration during welding, not in terms of the required strength of the components in some cases. This risk can be lowered if the two components are soldered together, so that only future stresses can be related to the dimensioning. It is also possible to replace the flange and clamping component connection with a brazed connection. Due to their high assembly cost, and due to problems in terms of leakage protection, such connections have proven to be even more disadvantageous and proceed to produce all the components of the exhaust gas system in the form of integral joints.

According to one example, one of the components is provided with a support surface for solder. This makes it possible to arrange the solder in the vicinity of the solder interval so that the solder material is pulled into the solder interval by the capillary force as soon as the solder is melted. In this process, the support surface prevents the solder material from flowing away from the solder gap toward other areas of the component. On the one hand, the solder material would be undesirable in these areas due to visual reasons, and on the other hand the solder material would no longer be available for actual solder joints.

The support surface on the component can be formed at low cost by the peripheral beads onto which the solder ring can be placed.

According to another example, it may be provided to arrange a solder support in the region of the solder joint, wherein the solder support comprises a support surface for the solder material. This embodiment has the advantage that the component itself does not need to be deformed to form the support surface. The solder support may preferably be made of an electrically non-conductive material, for example a ceramic material. As such, during the inductive soldering process, the solder support will not be induction heated and the solder material will not be bonded to the solder support. Thus, the solder support can be removed without any problems when the two components are soldered together.

According to another example, a runout region is provided between the two components. The run-out area accommodates excess solder in a state in which no connection is made with the two components. Thus, the run-out area acts on the features of the overflow vessel that can be filled when the solder spacing is completely filled with the solder material. The run-out area is not heated to the soldering temperature during soldering, and the solder material starts to solidify upon entering the run-out area. This ensures that the solder material does not escape on the side facing away from the solder spacing and does not result in unwanted solder droplets inside the two components. Such solder droplets may cause damage to the inside of the exhaust gas system during operation.

Advantageous embodiments of the invention will become apparent from the dependent claims.

The invention will be described below on the basis of various embodiments shown in the accompanying drawings.

According to the present invention, a method of connecting two components of an automobile exhaust gas system as well as an automobile exhaust gas system can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 schematically shows two components to be soldered together, which are arranged in a brazing device, in accordance with a first embodiment of the invention.
Fig. 2 is an enlarged view of detail II of Fig. 1 after two components are soldered together; Fig.
Fig. 3 schematically shows two components to be soldered together according to a second embodiment of the invention; Fig.
Fig. 4 shows two components of Fig. 3 in a soldered state; Fig.
Fig. 5 is an enlarged view of detail V of Fig. 4; Fig.
Fig. 6 schematically shows two components to be soldered together according to a third embodiment of the present invention; Fig.
Fig. 7 shows two components of Fig. 6 in a soldered state; Fig.
Fig. 8 is an enlarged view of the detail VIII of Fig. 7; Fig.
Fig. 9 schematically shows two components to be soldered together according to a fourth embodiment; Fig.
Fig. 10 shows the components of Fig. 9 in a soldered state; Fig.
Fig. 11 schematically shows two components to be soldered together according to a fifth embodiment; Fig.
Figure 12 shows the components of Figure 11 in different positions during soldering;
Fig. 13 schematically shows two components to be soldered together according to a sixth embodiment; Fig.
Figure 14 schematically shows another example of two exhaust components to be soldered together;
Fig. 15 schematically shows another example of two exhaust components to be soldered together; Fig.
Figure 16 schematically shows another example of two exhaust components to be soldered together;
Fig. 17 schematically shows another example of two exhaust components to be soldered together; Fig.
Fig. 18 schematically shows another example of two exhaust components to be soldered together; Fig.
Figure 19 schematically shows another example of two exhaust components to be soldered together;
Figure 20 schematically shows another example of two exhaust components to be soldered together;
Figure 21 schematically shows another example of two exhaust components to be soldered together;
Figure 22 schematically shows another example of two exhaust components to be soldered together;
Fig. 23 schematically shows another example of two exhaust components to be soldered together; Fig.
Fig. 24 schematically shows an example of three exhaust components to be soldered together; Fig.

Fig. 1 shows two components 10, 12, which in this case are two pipes of an automotive exhaust system. At this point, it is mentioned that components other than pipes, such as, for example, funnels with pipes, funnels with housings, etc., can also be basically also connected together.

The first component 10 is configured to have a constant cross-section, while the end of the second component 12 facing the first component 10 is configured to have an outwardly directed bead 14. Adjacent to the bead 14 is an insert 16. The insert 16 has an outer diameter slightly smaller than the inner diameter of the first component 10.

The area of the bead 14 facing the component 10 and vertically aligned with the intermediate axis M forms a support surface 18 on which the ring of solder material 20 is disposed. Thus, the solder material lies in the region of the solder spacing that is formed between the insert 16 of the second component 12 and the first component 10. The solder material 20 is a high temperature solder based on copper or nickel.

Although a solder ring is shown in the embodiment, the solder can of course be provided in other forms, such as, for example, sheet metal strips, pastes, and the like.

Arranged around the area of the two components 10, 12 to be soldered is a brazing device 22 that includes two shells 24, 26 that substantially surround the area to be brazed in an airtight manner. The shielding gas atmosphere in the envelope 24, 26 may be formed by a suitable (not shown) apparatus. An inductor 28 extends around the two shells 24 and 26 and the area of the two components 10 and 12 as well as the area of a portion of the two components 10 and 12 to be soldered together, A material current is generated in the material 20. Due to the electrical resistance, such a remnant current is converted into heat.

To braze the two components 10, 12 together, the ring of solder material 20 is placed on the bead 14 of the second component 12 in the first step. Next, the second component 12 is inserted using the insert 16 into the first component 10. Thereafter, the two shells 24, 26 are closed around a portion of the two components 10, 12 to be soldered, and a shielding gas atmosphere is formed inside the two shells. Next, a portion of the two components 10, 12, i.e., a portion of the two components 10, 12 to be soldered, as well as the solder material 20, is heated by the inductor 28 Can be heated. In this process, the solder material 20 melts and can be pulled against gravity by capillary forces into the solder spacing between the two components 10, 12 to fill the gap completely. This can be seen in FIG. The support surface 18 on the bead 14 ensures that the solder material 20 does not flow downwardly away from the solder spacing during melting and can be pulled into the solder spacing. Alternatively, the solder process may also be performed in a horizontal orientation or in an oblique orientation.

When the two components 10, 12 are cooled until the scaling in the air no longer occurs, the two enclosures 24, 26 can be opened, and now the components 20, Can be removed. The soldering apparatus is ready to accommodate the following components: A particular advantage of the soldering device and the inductive soldering method performed thereby is the fact that very short processing times are possible. The achievable processing time for brazing of the two components, including heating and cooling, is in the range of 40 seconds, and indeed is independent of seam length - as opposed to welding. Thus, a high throughput can be achieved with a small space requirement.

Figs. 3 to 5 show a second embodiment. For components known from the first embodiment, the same reference numerals can be used, and from this point of view, reference is made to the above embodiment.

The difference from the first embodiment is that the support surface 18 is not formed on one of the components themselves but is formed on the solder support 30 formed as a closed ring here. The solder support 30 is made of an electrically non-conductive material, such as, for example, a ceramic material, and surrounds the second component 12 adjacent the solder gap. In other words, the first component 10 slides on the second component 12 until it lies against the solder support 30. This allows the solder support 30 to be used as a reference for positioning the two components 10, 12 relative to one another. The surface of the solder support 30 facing the first component 10 forms a support surface 18 on which the ring of solder material 20 can be placed. It is possible to provide corrugations, protrusions or grooves on the solder support when constructed as a closed ring, which makes it easier for the solder to flow below the end face of the component 10 into the solder gap.

The regions of the two components 10, 12 to be soldered are heated, as in the first embodiment, by a soldering device (not shown) so that the solder material 20 is melted and the two components 10 , 12) (see Figs. 4 and 5). In this process, a small portion of the solder material flows down the solder support 30. However, since the solder support 30 is constructed of an electrically non-conductive material, it can not be heated by the inductor 28, so that the solder solidifies in this region. For this reason, only a very small portion of the solder material is not available in the actual soldered connection. In Fig. 5, soldered connections between the two components 10, 12 can be seen after the solder support 30 has been removed. This can be done without any problem since the solder support 30 is not heated until the soldering temperature is reached during soldering. The solder material 20 is therefore not bonded to the surface of the solder support. The " marks " of the solder support 30 can be clearly seen.

6 to 8 show a third embodiment. Again, the same reference numerals are used for components known from the previous embodiments.

The difference from the first embodiment resides in the fact that in the third embodiment the support surface 18 is formed on the end portion of the second component 10 which extends in the manner of the funnel. Thus, the ring of solder material 20 lies directly between the first component 10 and the second component 12. A further difference resides in the fact that the solder spacing is configured between the first component 10 and the second component 12 such that a run-out region 32 for the liquid solder material is formed. The runout area is formed to lie outside the area of the two components 10 and 12 heated by the inductor 28 so that the runout area 32 is in contact with the solder material 20, The temperature can be maintained at a temperature lower than the temperature.

When the two components 10, 12 are soldered together, the area of the solder gap is heated by the inductor. As soon as the solder material 20 is melted, the solder material will be pulled by the capillary force into the solder spacing in which the solder material wets the surface area of the two components 10,12. As with FIG. 7, as soon as the solder material reaches the lower portion of the solder gap, the solder material escapes from the actual solder spacing and enters the runout region 32. Since the runout region has a temperature lower than the coagulation temperature of the solder material 20, the solder material coagulates in the runout region 32. The run-out area 32 is selected to have a sufficient length to prevent the solder material from escaping from the lower side of the solder gap and entering the inside of the two components 10, 12. In Fig. 8, it can be seen that the solder material 20 does not wet the surface areas of the two components 10, 12 in the runout area 32, since they have a relatively low temperature. According to this, the end face of the solder material 20 is not concave and convex as seen from the upper end of the solder interval.

9 and 10 show a fourth embodiment of the present invention. The difference from the previous embodiment lies in the fact that an accommodating chamber 34 is provided in which the solder material 20 is disposed. Unlike the previous embodiment, the solder material 20 in this case need not be disposed as a fully enclosed ring. It is sufficient if the solder material extends, for example, only about half of the circumference of the annular accommodating chamber 34. As soon as the solder melts, it can diffuse along the entire circumference of the solder gap due to capillary forces, creating a tight sealing connection between the two components.

When the area of the component 10, 12 to be soldered to each other is heated to a temperature exceeding the melting temperature of the solder material 20, the solder material, which can now be liquid, ). ≪ / RTI > Two separate solder joints, i.e., a first solder joint associated with FIG. 10 between the end surface of the second component 12 and the outer side of the first component 10, i.e., to the left of the containment chamber, A second braze joint between the insert of the element 10 and the second component 12 is formed in this process.

11 shows a fifth embodiment of the present invention. The difference with the previous embodiment is that the first component 10 has an end with a constriction in the shape of a truncated cone while the second component has an end with a funnel-shaped flaring will be. The constricted portion of the first component is disposed within the deployment portion of the second component. The solder material 20 is disposed directly against the end face of the deployment portion of the second component 12. [ As soon as the solder material melts, it can be pulled into the solder interval by the capillary force so that a uniform connection between the first component and the second component can be achieved.

Fig. 12 shows the known components from Fig. 11, but unlike Fig. 11, the longitudinal axes of the two components 10,12 are arranged vertically instead of horizontally. Thus, the end face of the deployment portion of the second component 12 functions as a support surface 18 for the solder material 20. [

13 shows a sixth embodiment. The difference from the previous embodiment is that there is no pipe to be soldered to each other. Instead, the two housing parts of the silencer, the catalytic converter or other components of the exhaust gas system are soldered together. The first component 10 forms the upper shell of the housing and the second component 12 forms the lower shell of the housing. Both components have a peripheral edge and the edge of the second component has peripheral beads to form a chamber for receiving the solder material 20 in combination with the edge of the first component.

The edges of the first component 10 and the second component 12 as well as the solder material 20 are induction heated so that the solder material is melted and the two components are connected to one another. It is noteworthy here that even for these types of components with very large seam lengths, the processing time is not increased. If the two components are to be welded together, this will result in several minutes of processing time due to the large seam length.

14 shows another example of a first exhaust component 10 and a second exhaust component 12 which are connected to each other by an induction soldered (brazed) joint. The first exhaust component 10 and the second exhaust component 12 are spaced from one another by a solder gap 36 which may be of the order of 1.20 mm. A portion of the first exhaust component 10 is inserted into the opening in the second exhaust component 12. [ The high temperature inductive material 20 is located near the solder spacing 36. In this configuration, the inductor 28 must be located within the first component in the vicinity of the solder spacing 36. The inductor 28 generates a current of the solder material 20, as well as regions of the two exhaust components 10, 12 to be soldered together. Due to the electrical resistance, such a remnant current is converted into heat that melts the solder material 20 to fill the solder spacing 36. In addition, since the inductor 28 is located internally to the first exhaust component 10, the amount of thermal expansion of the first exhaust component 10 is reduced to a second configuration Is larger than the thermal expansion of the element.

As described above, the solder spacing 36 between the exhaust components 10, 12 can be of the order of 1.20 mm, which means that the lead-in solder joints only have a solder spacing in the range of 0.02 mm to 0.10 mm Directly contradicts the teachings of the prior art which teaches that it should be used. This tightly controlled range is not practical in an exhaust system, and for this reason inductive soldering has not previously been used for such components. However, it has been confirmed that a reliable induction braze joint can be formed between exhaust components having a solder spacing of 1.20 mm. This provides cost savings for manufacturing and assembling components.

This large spacing is undesirable due to the increased amount of solder material that may be required. Typical solder spacing may be in the range of more than 0.10 mm, up to 0.70 mm. In one example, the preferred solder gap size may be approximately 0.50 mm since it does not require a significant amount of additional solder material and still provides a more acceptable gap size.

The solder material 20 is, for example, a high temperature solder composed of a copper alloy material or a nickel alloy material. When using a nickel alloy material, the brazing / soldering temperature may be approximately 1300 占 폚, and the operating temperature may be in the range of 1000 to 1100 占 폚.

The solder material 20 as well as a portion of the two components 10, 12 to be soldered can be heated by the inductor 28 to a specified temperature. At this temperature, the solder material 20 melts and is attracted by the capillary force into the solder spacing 36 between the two components 10, 12 to fill the gap completely.

In the example of FIG. 14, the first exhaust component 10 includes a first exhaust pipe and the second exhaust component includes a second exhaust pipe, And may include any type of exhaust component that may be utilized in an exhaust system. For example, the first exhaust component and the second exhaust component may include a pipe, a flange connector, a muffler shell, an end plate, and the like. 14-24 illustrate various examples of different types of components and brazing configurations, it should be understood that there are numerous other examples that may also be utilized with the claimed soldering / brazing process. Each configuration also includes a solder spacing that can be as large as 1.20 mm. Although solder spacing 36 is exaggerated in FIG. 14 for illustrative purposes, it should be understood that similar spacing configurations are also applicable to other exemplary arrangements.

Figure 15 shows a configuration in which the solder material 20 is located in the groove 40 formed in the second exhaust component 12 located outside the first exhaust component 10 in the leaded solder joint .

16 shows an exemplary configuration similar to that of Fig. 15, but also to an end plate 42 attached to the first exhaust component 10. Fig. The second induction braze joint 44 may also be used to connect the end plate 42 to the first exhaust component 10 in the manner described above.

17 shows a configuration for a muffler 46 including an end plate 42 and an inner muffler pipe 48 connected to each other by an induction braze joint. The solder material 20 is positioned on the exterior of the muffler cavity 50 and rests on the outer surface of a portion of the inner muffler pipe 48 extending outwardly of the end plate 42. The inductor 28 is located inside the muffler pipe 48 and an induction brazed joint is formed in the manner described above.

18 and 19 each show a configuration in which the seat flange 52 is attached to a pipe or cone component 54. Fig. 18 shows the seat flange 52 positioned externally to the pipe or cone component 54 with the solder material 20 positioned externally and seated on the upper edge of the seat flange 52 Respectively. 19 shows the seat flange 52 positioned internally relative to the pipe or cone component 54 with the solder material 20 positioned therein and seated on the upper edge of the seat flange 52 Respectively. In either configuration, the inductor 28 may be positioned internally as described above.

20 and 21 show a configuration in which the bushing 56 is attached to the exhaust pipe 58 by an induction brazing joint, respectively. Figure 20 shows a configuration in which the bushing 56 is fully positioned within the pipe 58 and the solder material 20 is seated on the upper edge of the bushing 56. Figure 21 shows a configuration in which the bushing 56 surrounds the outer surface of the exhaust pipe 58 with the solder material 20 positioned externally and resting on the upper edge of the bushing 56. [ In the example shown in Fig. 21, the upper edge of the bushing 56 includes the deployed portion, but the upper edge may also be straight as shown in Fig. In either configuration, the inductor 28 may be positioned internally as described above.

22 shows a configuration in which the end plate or cover 60 is attached to the exhaust pipe 62. Fig. The exhaust pipe 62 is inserted into the opening in the cover 60 and the stopper 64 surrounds the outer surface of the pipe 62 to hold the cover 60 in place. The solder material 20 is located outside at the interface between the cover and the pipe. The stopper 64 also serves to prevent molten solder material from flowing out of the solder gap 36.

23 shows a configuration in which the exhaust pipe 64 is connected to the cone 66 by an induction brazing joint. The pipe 64 includes a tapered portion 68 spaced apart from the corresponding tapered portion 70 of the cone 66 by a solder gap 36. The pipe 64 is located inside the cone 66 and the solder material is located externally on the top edge of the cone 66. The upper edge of the cone 66 may be deployed as shown, or alternatively the upper edge may be straight.

Figure 24 shows a multi-joint configuration in which three different exhaust components are connected together by an induction brazed joint. The end plate 72 is attached to the muffler shell 74, for example, with a pleated connection 76. The end plate 72 is connected to an inner muffler pipe 78 connected to an outer exhaust pipe 80 which is connected to the rest of the vehicle exhaust system. The outer end of the inner muffler pipe 78 is positioned between the outer exhaust pipe 80 and the end plate 72. A solder gap 36 is formed between the outer exhaust pipe 80 and the inner muffler pipe 78 and between the inner muffler pipe 78 and the end plate 72. [ The solder material 20 is seated at the upper edge of the intermediate component, i.e., at the outer end of the inner muffler pipe 78, and is drawn into the solder gap 36. In this exemplary configuration, the inductor 28 is located outside the induction brazed joint, i.e., the inductor is positioned externally to the muffler 78 and the exhaust pipe 80.

In principle, all components of the exhaust system can be interconnected by the method described above. In this respect, it does not matter whether the components are successively, simultaneously or simultaneously soldered to each other. It is also possible to solder different materials to one another. For example, it is possible to braze the exhaust pipe to a tail pipe made of non-ferrous metal, which is made of a material different from the material of the actual exhaust pipe.

10: first component 12: second component
14: bead 16:
18: Support surface 20: Solder material
24, 26: sheath 28: inductor
30: solder support 32: runout region
36: solder spacing 40: groove
42: end plate 46: muffler
48: muffler pipe 50: muffler cavity
52: seat flange 54: cone component

Claims (14)

A first exhaust component,
Wherein the second exhaust component is positioned relative to the first exhaust component to form a solder gap that can be as large as 1.20 mm between the first exhaust component and the second exhaust component, Wherein a portion of the first exhaust component is inserted into the opening of the second exhaust component; and a second exhaust component,
An induction braze joint formed between the first exhaust component and the second exhaust component at the solder interval,
And an inductor for heating the solder material at least partially located in the first exhaust component and the second exhaust component and provided in the vicinity of the solder gap,
And an exhaust component. The exhaust component assembly of claim 1, wherein the solder spacing is greater than 0.10 mm. 3. The exhaust component assembly of claim 2, wherein the solder spacing is 0.70 mm or less. The exhaust component assembly of claim 1, wherein the solder spacing is in the range of greater than 0.10 mm and less than 0.50 mm. The exhaust component assembly of claim 1, wherein the first exhaust component comprises an exhaust pipe and the second exhaust component comprises one of a second exhaust pipe, a connecting flange, a cone or a muffler shell. 6. The exhaust component assembly of claim 5, wherein the first exhaust component and the second exhaust component are directly connected to each other without any intervening structure by the inductive braze joint. The exhaust component assembly of claim 1, wherein the first exhaust component and the second exhaust component are connected to each other only by the induction braze joint. Placing a portion of the first exhaust component in an opening of the second exhaust component,
Positioning the first exhaust component relative to the second exhaust component to be separated by a solder interval that can be as large as 1.20 mm;
Providing a solder material near said solder spacing;
Inserting an inductor into the interior of the first exhaust component at least partially to heat the solder material,
Heating the solder material;
Filling the solder spacing with a solder material to attach the first exhaust component and the second exhaust component together with an induction braze joint
Wherein the exhaust components are attached together. 9. The method of claim 8, wherein the solder spacing is greater than 0.10 mm. 9. The method of claim 8, wherein the solder spacing is in the range of greater than 0.10 mm and less than 0.50 mm. 9. The method of claim 8,
Providing an induction braze joint as the only connection interface between the first exhaust component and the second exhaust component
Wherein the exhaust components are attached together. 9. The exhaust system of claim 8, wherein the first exhaust component comprises a first exhaust pipe and the second exhaust component comprises one of a second exhaust pipe, a flange connector, a cone or a muffler shell, And direct connection of the component and the second exhaust component together with the induction braze joint. delete delete

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