摘要:
The invention pertains to a multi-layered brazing sheet with improved long life corrosion resistance which is achieved by balancing the Zn, Cu, Mn, Si and Mg content of the core and interliner alloy. To this end the brazing sheet comprises a core of a 3xxx alloy, an inner braze cladding of a 4xxx alloy , and between core and inner braze cladding an interliner of a 3xxx alloy, wherein the 3xxx alloy of the core comprises 0.55 - 1.0 wt% Cu, 0.7 - 1.8 wt% Mn,
摘要:
A device for exchanging heat between a gas containing acid and a heat-exchange medium, comprising at least one flow channel, which is essentially made of aluminium and/or an aluminium alloy, for the gas containing acid.
摘要:
The invention relates to a soldered aluminum heat exchanger, having tubes made of a core material through which tubes a coolant flows, and said tubes being connected to at least one header by means of an inner soldered joint; having a protective plating on the inner face of the core material comprising aluminum and using four-layer technology; having an inner solder plating on the protective plating; and having an outer solder plating on the outer face of the tube facing away from the coolant face.
摘要:
The invention relates to an exhaust gas heat exchanger for motor vehicles, comprising a cluster of exhaust pipes (10) which are soldered on the front surface thereof to pipe bottoms, and a housing jacket (3, 3b) which is welded to the pipe bottoms (7). According to the invention, the pipe bottoms are welded to the housing jacket (3b) by means of peripheral welds (11).