The present disclosure relates to a high-chromium white iron alloy comprising rare-earth (RE) element. The alloy comprises RE of 0.01-0.6 wt %, Cr of 26-30 wt %, C of 2.5-4 wt %, Si of 0.2-2 wt %, Mn of 0.5-1 wt %, Mo of 0.2-0.5 wt %, Ni of 0.01-0.6 wt %, at most 1 wt % of impurities, and a balance of Fe. The invention also relates to a white iron product made from the alloy. Further, the invention relates to a method comprising adding an RE powder to a metal melt comprising Cr, C, Si, Mn, Mo, Ni and Fe as above, whereby a white iron alloy melt comprising RE is formed.

A method for manufacturing an aluminium tube, including providing a slug of an aluminium alloy consisting of >98.4% by weight of Al, 0.10% by weight to 0.30% by weight of Si, 0.25% by weight to 0.45% by weight of Fe, 0.01% by weight to 0.08% by weight of Cu, 0.15% by weight to 0.40% by weight of Mn, at most 0.15% by weight of Mg, at most 0.05% by weight of Zn, at most 0.05% by weight of Cr, at most 0.05% by weight of Ni, at most 0.05% by weight of Ti and at most 0.05% by weight of other impurities, wherein the aforementioned ingredients of the aluminium alloy add to 100% by weight, and impact extrusion of the slug to form an aluminium tube having a shoulder and a neck.

Described herein are aluminum alloy products for packaging and/or producing a beverage. The aluminum alloy products include beverage capsules. The aluminum alloy products can include a 3xxx series aluminum alloy. The aluminum alloy products can include at least 50 wt. % recycled aluminum. Also described herein are methods for processing the aluminum alloys to produce beverage capsules and other packaging products.

An aluminum alloy based on a total weight of the aluminum alloy, in percentages by weight, includes 9.12% of Si, 8-11% of Zn, 0.5-1.5% of Mg, 0.2-0.8% of Cu, 0-0.6% of Fe, 0.08-0.25% of Mn, 0-0.10% of Sr, 0-0.05% of Sc, 0-0.5% of Er, and 73.2-82.22% of Al.

The invention discloses a method for synergistically preparing ferrosilicon alloy and glass-ceramics from photovoltaic waste slag and non-ferrous metal smelting iron slag, and belongs to the technical field of collaborative resource utilization of various smelting slag areas. According to the method, the zinc rotary kiln slag and a reduction tempering agent are subjected to batching, mixing and high-temperature melting to form a reduction-state iron-containing material. The iron-containing material and the silicon slag are further subjected to mixed melting, water quenching and sorting to obtain the ferrosilicon alloy and residual waste slag. The residual waste slag is subjected to tempering, melting, molding, annealing and heat treatment to obtain the glass ceramics. According to the method, the ferrosilicon alloy and the glass ceramics are prepared from the silicon slag and the zinc rotary kiln slag, and a collaborative resource utilization target of the regional smelting slag is achieved. The ferrosilicon alloy is obtained through high-temperature reduction of the zinc rotary kiln slag and chemical combination of the zinc rotary kiln slag and the silicon-rich silicon slag. Because the high-temperature decomposition of silica is not involved, the process greatly reduces the energy consumption, saves the cost and is suitable for industrial popularization and application.

The invention discloses a method for synergistically preparing ferrosilicon alloy and glass-ceramics from photovoltaic waste slag and non-ferrous metal smelting iron slag, and belongs to the technical field of collaborative resource utilization of various smelting slag areas. According to the method, the zinc rotary kiln slag and a reduction tempering agent are subjected to batching, mixing and high-temperature melting to form a reduction-state iron-containing material. The iron-containing material and the silicon slag are further subjected to mixed melting, water quenching and sorting to obtain the ferrosilicon alloy and residual waste slag. The residual waste slag is subjected to tempering, melting, molding, annealing and heat treatment to obtain the glass ceramics. According to the method, the ferrosilicon alloy and the glass ceramics are prepared from the silicon slag and the zinc rotary kiln slag, and a collaborative resource utilization target of the regional smelting slag is achieved. The ferrosilicon alloy is obtained through high-temperature reduction of the zinc rotary kiln slag and chemical combination of the zinc rotary kiln slag and the silicon-rich silicon slag. Because the high-temperature decomposition of silica is not involved, the process greatly reduces the energy consumption, saves the cost and is suitable for industrial popularization and application.

The present invention discloses a Nb and Al-containing titanium-copper alloy strip, characterized in that the weight percentage composition of the titanium-copper alloy strip comprises: 2.00-4.50 wt % Ti, 0.005-0.4 wt % Nb, and 0.01-0.5 wt % Al, balance being Cu and unavoidable impurities. Preferably, in the microstructure of the titanium-copper alloy strip, the number of Nb and Al-containing intermetallic compound particles with a particle size of 50-500 nm is not less than 1×10.sup.5/mm.sup.2, and the number of Nb and Al-containing intermetallic compound particles with a particle size greater than 1 μm is not more than 1×10.sup.3/mm.sup.2. Under the condition of ensuring excellent bendability, the titanium-copper alloy strip has excellent stability, especially the stability of mechanical properties at high temperatures. The present invention also relates to a method for producing the titanium-copper alloy strip.

A hot-rolled steel plate/strip for sulfuric acid dew point corrosion resistance and manufacturing method therefor. In said method, elements such as Sn and Cu remaining in steel scrap are fully utilized to smelt molten steel, and micro-alloy elements such as Cr, Ti, and Sb are selectively added; in a smelting process, basicity of slag, types and melting points of inclusions in steel, and a free oxygen content and an acid-soluble aluminum (Als) content in molten steel are controlled, a cast strip (11) is casted by means of twin-roll strip continuous casting, the cast strip (11) exits from crystallization rolls (8a, 8b) and directly enters a lower closed chamer (10) having a non-oxidizing atmosphere, then enters, in a closed condition, an on-line rolling mill (13) for hot rolling, after rolling, strip steel is cooled by means of gas atomization cooling, and finally the strip steel is wound up. The steel can be widely applied to the fields of products, such as tobacco baking apparatuses, air preheater heat exchange elements in industries such as petroleum, chemical industry, electric power, and metallurgy, delivery pipe, flue, and stack manufacturing structural parts, and boiler preheater and economizer equipment, of which the use environments have requirements for sulfuric acid dew point corrosion resistance performance.

An object of the present invention is to provide a Zr—Nb-based alloy material as a low-magnetic susceptibility alloy having a high corrosion resistance while maintaining a magnetic susceptibility equivalent to or less than the magnetic susceptibility of the biological alloy of the related art, a method for manufacturing the alloy material, and a Zr—Nb-based alloy product. The Zr—Nb-based alloy material according to the present invention includes, as a chemical composition, 3% by mass or more and 18% by mass or less of Nb, 12% by mass or less of Ti, 6% by mass or less of Cr, 6% by mass or less of Cu, 5% by mass or less of Bi, and a remainder consisting of Zr and unavoidable impurities, in which isothermal ω phase particles are dispersed and precipitated in β phase crystal grains of a parent phase.

A method for producing a collector alloy comprising 25 to 100 wt % precious metal in total, comprising 0 to <97 wt % of the precious metal silver, 0 to 75 wt % of at least one precious metal selected from gold, platinum, rhodium and palladium, and 0 to 75 wt % of at least one non-precious metal selected from copper, iron, tin and nickel, or for producing pure silver, comprising the steps of: (1) providing precious metal sweeps; (2) providing a flux which, during collective melting with the refractory inorganic material from the precious metal sweeps provided in step (1); (3) collective melting of the materials provided in steps (1) and (2) at a temperature in the range of from 1300 to 1600° C., forming a melt comprising at least two phases of different densities arranged one above the other; and. (4) separating the upper phase and the lower phase.