| 摘要 |
The invention relates to a method of connecting semi-finished parts of heat-resistant stainless steel which contains from 8 to 28% by weight of chromium, from 0 to 11% by weight of aluminium, from 0 to 2% of silicon, from 0 to 3% of cobalt and/or manganese, from 0 to 1% of titanium and/or zirconium and/or niobium and/or hafnium and also the constituents and impurities usual in stainless steels. Characteristic of the invention is the production of filters, catalyst supports, heat exchangers and soot filters of sheets having embossed corrugation, the corrugation peaks of which have applied to them a layer of solder of average thickness up to 5 . 10<-6> m by means of a rubbing procedure with iron or with a metal more noble than iron, such as, for example, nickel, copper or silver and/or an alloy predominantly containing one or more of the specified metals, the filters or supports are placed together and subsequently soldered in vacuo or protective gas. The invention furthermore relates to a soot filter.
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