Abstract: A method for producing a corrosion resistant aluminum alloy extrusion. The method includes providing molten alloy with a composition comprising ?0.30, % by weight of silicon, ?0.40, % by weight of iron, 0.01-0.6% manganese, ?0.30, % magnesium, ?0.70, % zinc, 0.05-0.35% chromium, 0.02-0.20% zirconium, ?0.25% titanium, ?0.20% vanadium, ?0.10% copper, up to 0.15% by weight of other impurities, each not greater than 0.03% by weight, and the balance aluminum. The method includes casting the alloy into an extrusion billet, subjecting the billet to a homogenization treatment at a holding temperature of 550 to 620 deg.C for 6 to 10 hours, heating the billet to a temperature of 400 to 550 deg.C, and extruding the billet to a tube.

Abstract: The invention relates to a method for producing a corrosion resistant aluminium alloy extrusion, consisting of an alloy with the composition ?0.30, preferably 0.05 - 0.15 % by weight of silicon, ?0.40, preferably 0.06 - 0.35 % by weight of iron, 0.01 -1.1 % by weight of manganese, ?0.30, preferably 0.15 - 0.30 % by weight of magnesium, ?0.70, preferably 0.05 - 0.70 % by weight of zinc, ?0.35, preferably 0.25 % by weight of chromium, ?0.20 % by weight of zirconium, ?0.25, preferably 0.05-0.25% by weight of titanium, ?0.20% by weight vanadium ?0.10 % by weight of copper up to 0.15 % by weight of other impurities, each not greater than 0.03 % by weight and the balance aluminium, the method comprising the steps casting the molten metal into extrusion billet a) subjecting the billet to a homogenization treatment at a holding temperature of 550 to 620 deg.C for 6 to 10 hours b) heating the billet to a temperature of 400 to 550 deg.C c) extruding the billet to a tube.

Abstract: A system for evaluating all functions of a mobile phone to benefit recycling purposes includes a robotic arm assembly, a camera test device, a touch test device, and a 3D Touch test device. The camera test device has a backlight screen and a target picture. The touch test device has at least one first stylus for applying input to a touch screen of a mobile phone. The 3D Touch test device has at least one second stylus for applying strong presses to the touch screen of the mobile phone. The robotic arm assembly can also move the mobile phone to enable image-capturing. A method for functionality-testing is also provided.

Abstract: The invention relates to a method and an aluminium alloy sheet material. The method of producing aluminium alloy sheet material comprising the following steps: continuous strip casting of a sheet at a predetermined solidification rate ensuring material microstructure exhibiting primary particles having average size below 1 micrometer2, and (cold) rolling of the strip cast sheet to an appropriate gauge with optionally intermediate annealing during the cold rolling. It is an object of the present invention to provide a novel method of production of Al-alloy sheets applicable on heat exchanger sheet based components resulting in improved pitting corrosion applying (base) Al-alloy material with higher Fe-content.

Abstract: The invention relates to a method and an aluminium alloy sheet material. The method of producing alumiium alloy sheet material comprising the floowing steps: continuous strip casting of a sheet at a predetermined solidification rate ensuring material microstructure exhibitnig primary particles having average size below 1 micrometer2, and (cold) rolling of the strip cast sheet to an appropriate gauge with optionally intermediate annealing during the cold rolling. It is an object of the present invention to provide a novel method of production of Al-alloy sheets applicable on heat exchanger sheet based components resulting in improved pitting corrosion applying (base) Al-alloy material with higher Fe-content.

Abstract: The invention relates to a series of extra strong and durable aluminium alloy brazing sheets with enhanced corrosion resistance for brazed heat exchangers. The alloy sheets are based on recycled materials and are suitable for manufacturing of fins, welded tubes, headers and sideplates. The alloy sheets showed improved corrosion performance with respect to pitting corrosion, excellent high temperature sagging resistance and post braze strength, and a good brazeability. By optimising the material combination of fin, tube, header and sideplates it is possible to produce a heat exchanger with adequate corrosion performance in SWAAT.

Abstract: A strong durable aluminum alloy fin material with enhanced corrosion resistance for brazed heat exchangers. The fin material includes a core material and a clad material on the core material. The core material consists of, by weight, 0.10-1.50% Si, 0.10-0.60% Fe, 0.00-1.00% Cu, 0.70-1.80% Mn, 0.00-0.40% Mg, 0.10-3.00% Zn, 0.00-0.30% Ti, 0.00-0.30% Zr, and the balance being Al and impurities. The clad material consists of, by weight, 4.00-14.00% Si, 0.10-0.80% Fe, 0.00-0.50% Cu, 0.00-0.50% Mn, 0.00-0.50% Mg, 0.03-3.00% Zn, 0.00-0.30% Ti, and the balance being Al and impurities.

Abstract: The invention relates to a series of extra strong and durable aluminium alloy brazing sheets with enhanced corrosion resistance for brazed heat exchangers. The alloy sheets are based on recycled materials and are suitable for manufacturing of fins, welded tubes, headers and sideplates. The alloy sheets showed improved corrosion performance with respect to pitting corrosion, excellent high temperature sagging resistance and post braze strength, and a good brazeability. By optimising the material combination of fin, tube, header and sideplates it is possible to produce a heat exchanger with adequate corrosion performance in SWAAT.