Manufacture of metal honeycomb body
A technology of metal honeycomb and honeycomb core, which is applied in chemical instruments and methods, mechanical equipment, engine components, etc., and can solve problems such as low production efficiency, complicated process, and easy detachment of the honeycomb core from the outer sleeve.
Active Publication Date: 2004-09-08
亿达天地环保技术股份有限公司
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Problems solved by technology
[0002] Existing metal honeycomb body, such as the patent No. 93108273.0, the Chinese patent titled "metal honeycomb and its manufacturing method" discloses a metal honeycomb body, which is laminated by flat sheets and corrugated sheets, and is wound to form a honeycomb core. The outer peripheral surface of the honeycomb core is wound with brazing foil, inserted into the outer sleeve, and then brazed. Therefore, in order to prevent detachment, the outer diameter of the honeycomb core is made almost equal to the inner diameter of the outer sleeve, and then the honeycomb core is forced into the outer sleeve or the opening of the outer sleeve is expanded to press the honeycomb core into the outer sleeve, so that the outer sleeve is at the same The honeycomb core is closely matched, but this process is more complicated
For this reason, the Chinese patent that the patent application number is 02101994.0 discloses a kind of method, adopts the spot welding method, "continue spot welding to connect the flat plate and the corrugated sheet after the two crests of each winding corrugated sheet, until the spot welding while winding is completed Forming the core", although this method improves the problems of brazing, but the process is more troublesome and the production efficiency is low
Method used
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[0011] For the manufacture of circular honeycombs, such as figure 2 As shown, get a piece of flat sheet 2, a piece of corrugated sheet 1, its length is equivalent to the required length of a honeycomb core, the two sides of flat sheet 2 are spot-welded some brazing rods 6, and the number of bars depends on the size of the honeycomb core, ensuring The brazing rod 6 is distributed on the flat sheet 2 according to the set position, the corrugated sheet 1 is stacked on the flat sheet 2, and its one end 7 is spot welded at 3-5 cm away from the end 8 of the flat sheet 2, and the end 8 is used as a coil The starting end of the winding is tightly wound into a circular honeycomb core 4 by an existing winding machine. The outer diameter of the honeycomb core 4 is smaller than the inner diameter of the outer sleeve 3, and then inserted into the outer sleeve 3, and then placed in the honeycomb body Both ends are spot welded at the contact point between the honeycomb core 4 and the outer ...
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The manufacture of metal honeycomb for motor vehicle includes spot welding brazing rods to two sides of one flat sheet, sport welding corrugated sheet to the flat sheet in the position apart from one end of the flat sheet by several centimeter, winding honeycomb core from the said end, inserting outer sleeve, spot welding on two ends of the honeycomb to connect the honeycomb core to the outer sleeve, and finally brazing in brazing furnace. The manufacture process is simple, and has no strict fitting requirement between the honeycomb core and the outer sleeve and firm combination between the honeycomb core and the outer sleeve.
Description
technical field [0001] The invention relates to a manufacturing method of a metal honeycomb body for carrying a catalyst for purifying motor vehicle exhaust. Background technique [0002] Existing metal honeycomb body, such as patent No. 93108273.0, the Chinese patent titled "metal honeycomb and its manufacturing method" discloses a metal honeycomb body, which is laminated by flat sheets and corrugated sheets, and is wound to form a honeycomb core. The outer peripheral surface of the honeycomb core is wound with brazing foil, inserted into the outer sleeve, and then brazed. Therefore, in order to prevent detachment, the outer diameter of the honeycomb core is made almost equal to the inner diameter of the outer sleeve, and then the honeycomb core is forced into the outer sleeve or the opening of the outer sleeve is expanded to force the honeycomb core into the outer sleeve, so that the outer sleeve is at the same The honeycomb core is closely matched, but this process is mo...
Claims
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Login to View More IPC IPC(8): B01J35/04F01N3/28
CPCY02A50/20
Inventor 夏琦
Owner 亿达天地环保技术股份有限公司