Abstract translation:本发明是一种不使用助焊剂钎焊铝合金材料的方法,其特征在于,目的是形成具有足够接合强度的接头角,并且作为“使金属粉末附着于 铝合金材料的表面,然后在不使用焊剂的情况下,在惰性气体或氢气气氛中钎焊加热,铝合金材料含有0.40-1.5质量%的Mn,余量为Al和不可避免的杂质,金属 包括Si,Mg,Zn和Al中的至少一种元素的粉末,铝合金材料表面上的Si的沉积量为1.0-10.0g / m 2,Mg的沉积量为0.1-3.0g / m 2 ,Zn的沉积量为1.0〜5.0g / m 2。
Abstract:
A solder may include zinc, aluminum, magnesium and gallium. The zinc may be present in an amount from about 82% to 96% by weight of the solder. The aluminum may be present in an amount from about 3% to about 15% by weight of the solder. The magnesium may be present in an amount from about 0.5% to about 1.5% by weight of the solder. The gallium may be present in an amount between about 0.5% to about 1.5% by weight of the solder.
Abstract:
A homogeneous brazing material essentially consisting of relatively low amounts of silver and nickel together with copper, zinc, and other constituents is provided. The brazing material has a working temperature exceeding 630°F and is preferably between about 1250 °F and 1500 0F. The brazing material preferably has about 30 percent by weight of silver, about 36 percent by weight of copper, about 32 percent by weight of zinc, and about 2 percent by weight of nickel. The addition of nickel in the above-specified amount improves resistance against interface corrosion in aqueous solutions, aids in the strength of the alloy, and provides improved wettability on ferrous and non-ferrous substrates. The brazing material may take many forms including flux cored round wires, oval wires, round rods, oval rods, round rings, oval rings, round specialty preforms, oval specialty preform, or homogeneous cast solid wires, rings, strips, washers and other such pre-forms, and powder. The brazing material may also include a flux, such as a core or a coating.
Abstract:
The invention relates to a method of providing an aluminium conductor rail (1) used in electrolysis with a silver electric current supplier (6a, 6b, 6c) having a contact surface that conducts well electricity. In order for the conductor rail (1) and the electric current supplier (6a, 6b, 6c) thereof to be economical, easy and rapid to manufacture, a) the material selected for the conductor rail (1) is a aluminium-based alloy, b) the surface of the conductor rail (1) having an aluminium surface is heated and once the surface of the aluminium reaches a temperature exceeding the melting temperature of the solder, a zinc-based solder is arranged on top of it, the solder containing a substance with high affinity to oxygen and the solder being then spread in the molten state onto said surface, c) an aluminium oxide layer formed between the aluminium and the molten solder is broken by a mechanical treatment so that oxygen is released from the aluminium oxide layer, the oxygen reacting with the substance of high affinity to oxygen and forming together with said substance an oxide layer on the surface of the molten solder, and d) an electric current supplier (6a, 6b and 6c) is arranged on top of said solder, the solder is allowed to solidify and the electric current supplier to attach in place into the solidified solder. The invention also relates to a conductor rail (1).
Abstract:
The present invention relates to a method of manufacturing a shaped product by means of brazing, the method comprising the steps of: a. producing an intermediate object of metal by rolling or extrusion and having at least one flat surface, b. coating the at least one surface with a brazing composition comprising a resin, a wax, and a flux and/or flux-producing compound, c. reshaping of the intermediate object into a shaped product, and d. heating the shaped product to a temperature sufficient to provide at least one brazed connection between defined parts of the shaped product. When a brazing composition according to the present invention is used in this method, it is not necessary to use an additional lubricant during deforming.