Heat exchanger coating

The invention relates to a heat exchanger, in particular an evaporator for an air-conditioning circuit of a vehicle, said exchanger enabling a heat exchange between a first fluid and a second fluid and having surfaces intended to come into contact with one of said fluids, said surfaces being formed from aluminium and/or aluminium alloy and coated with an alumina layer and a reinforcing layer that reinforces the natural protection of the aluminium, said reinforcing layer comprising a portion of organic substances and a portion of mineral substances, said portion of organic substances comprising at least one polymer and said portion of mineral substances comprising at least one substance capable of reacting with aluminium in order to form an anti-corrosion material. The invention also relates to a process for manufacturing an exchanger. 本发明涉及种热交换器，特别是种用于车辆的空调回路的蒸发器，所述交换器允许第流体和第二流体之间的热交换，且具有意于与所述流体中的种接触的表面，所述表面由铝和/或铝合金制成，并涂覆有氧化铝层和增强对铝的天然保护的被称为增强层的层，所述增强层包括部分有机物质和部分矿物质，所述部分有机物质包括至少种聚合物，所述部分矿物质包括至少种能够与铝反应以形成抗腐蚀材料的