Apparatus for producing elongate strands of metal comprises a rotatable wheel having a circumferential surface, at least one nozzle for directing a molten metal onto the circumferential surface and a collection means for collecting solidified strands of metal formed. The solidified strands are formed on the circumferential surface from the molten metal and are separated from the circumferential surface by centrifugal force generated by rotation of the wheel. The circumferential surface has a circumferentially extending structure having circumferentially extending edges and recesses formed between or bounded by the edges, and by an apparatus for controlling a gas pressure applied to the liquid metal which moves the liquid metal through the nozzle opening and delivers it to the circumferential surface of the rotatable wheel. The nozzle has a rectangular cross-section with a width of the nozzle opening in the circumferential direction of rotation of the wheel and a length transverse to the circumferential surface of the wheel which is greater than the width. A method and a wheel adapted for use in the apparatus are also claimed.

A soft magnetic alloy ribbon having high corrosion resistance and good magnetic properties is obtained. The soft magnetic alloy ribbon contains Fe and M. M is at least one selected from the group consisting of Nb, Ta, W, Zr, Hf, Mo, Cr, and Ti, and a part of M is included in oxides. A maximum point of a concentration of at least one of M included in the oxides is present in a region within 20 nm from the surface, when a concentration distribution of an element contained in the soft magnetic alloy ribbon is measured from a surface toward an interior of the soft magnetic alloy ribbon in a thickness direction.

A method of manufacturing an Fe-based amorphous alloy ribbon includes forming a coated film of a molten alloy on a peripheral surface of a chill roll that has been subjected to polishing using a polishing brush roll, cooling the coated film on the peripheral surface, and then winding the Fe-based amorphous alloy ribbon, which has been peeled off by a peeling means, on a wind-up roll, to obtain a wound body of an Fe-based amorphous alloy ribbon. The polishing brush roll includes a roll axis member and a polishing brush that is equipped with a plurality of brush bristles and satisfies the following condition (1) and condition (2) while rotating axially in a reverse direction to the chill roll. Condition (1): Free length of brush bristles is more than 30 mm but no more than 50 mm. Condition (2): Density of brush bristles at the brush bristle tip is more than 0.30 bristles/mm.sup.2 but no more than 0.60 bristles/mm.sup.2.

A caster assembly configured to process and store a material includes a reaction chamber, a storage assembly configured to store material processed in the reaction chamber, and a blower configured to process and store the material. The reaction chamber includes a vessel configured to hold the material in a melted state prior to processing and a powder generating assembly configured to receive the material from the melting vessel. The powder generating assembly includes a feeding chamber and a feeding device disposed at least partially within the feeding chamber. The feeding device includes at least one nozzle configured to inject inert fluid, where the fluid is a gas, liquid, or combination of the two into the feeding chamber and a material inlet through which the material is configured to flow into the feeding chamber to be exposed to the inert fluid, where the fluid is a gas, liquid, or combination of the two.

Amorphous metal foil and method for the production of an amorphous metal foil using a rapid solidification technology is provided. An amorphous metal foil having a width of 2 mm to 300 mm, a thickness of less than 20 m and a maximum of 50 holes per square metre is also provided.

A method and apparatus for manufacturing a flexible layer stack, and to a flexible layer stack. Implementations of the present disclosure particularly relate to a method and apparatus for coating flexible substrates with a low melting temperature metal or metal alloy. In one implementation, a method is provided. The method includes delivering a transfer liquid to a quenching surface of a rotating casting drum. The method further includes forming a material layer stack over the rotating casting drum by delivering a molten metal or molten metal alloy toward the quenching surface of the rotating casting drum. The method further includes transferring the material layer stack from the rotating casting drum to a continuous flexible substrate, wherein the quenching surface of the rotating casting drum is cooled to a temperature at which the layers of the material layer stack solidify.

A shoe for dispensing molten lead into a mold cavity of rotating dmm to continuously cast a web of a plurality of serially connected grids for lead acid batteries. The shoe may have an elongate orifice slot in a face confronting the drum, a molten lead supply slot opening into an upper recessed portion of the orifice slot and an excess molten lead return slot communicating with the recessed portion downstream of the supply slot.

Disclosed is an amorphous nanocrystalline alloy strip. When the amorphous nanocrystalline alloy strip is cut into a plurality of narrow strips having a same width of less than or equal to 10 mm, a relative length difference among the plurality of narrow strips is not greater than 0.50%. Further disclosed is a method for manufacturing the amorphous nanocrystalline alloy strip. The amorphous nanocrystalline alloy strip has good surface flatness. The transverse temperature non-uniformity of molten steel inside a melting pool and the surface temperature non-uniformity of a cooling roller within a strip manufacturing position range are controlled in a process of manufacturing the amorphous nanocrystalline alloy strip, so that the surface flatness of the manufactured strip is improved. The manufacturing process is simple and convenient.

A method is provided for producing a 0.8-4.5 mm thick steel strip with an amorphous, partially amorphous or fine-crystalline microstructure with grain sizes in the range of 10-10000 nm and also a flat steel product made therefrom. A molten steel is cast into a cast strip in a casting device and cooled down at an accelerated rate. Along with Fe and impurities that are unavoidable for production-related reasons, the molten material contains at least two elements belonging to the group Si, B, C and P. In this case, the following applies for the contents of these elements (in % by weight) Si: 1.2-7.0%, B: 0.4-4.0%, C: 0.5-4.0%, P: 1.5-8.0%. With a corresponding composition and a microstructure with corresponding characteristics, a flat steel product according to the invention has a HV0.5 hardness of 760-900.

A single roll type apparatus for manufacturing a metal thin strip by injecting a molten metal onto an outer peripheral face of a cooling roll rotating at a high speed and rapidly solidifying it to manufacture a metal thin strip, wherein an airflow blocking device for blocking the airflow along the surface of the cooling roll is provided at an upstream side of a molten metal injection nozzle for injecting the molten metal in a rotation direction of the cooling roll, and a carbon dioxide gas injection nozzle for forming a flow of carbon dioxide gas on an outer peripheral surface of the cooling roll between the airflow blocking device and the molten metal injection nozzle or forming a carbon dioxide atmosphere on the surface of the cooling roll between the airflow blocking device and the molten metal injection nozzle is disposed, and a foreign material removal device for removing foreign material attached to the surface of the cooling roll is disposed at an upstream side of the airflow blocking device in the rotation direction of the cooling roll, whereby a metal thin strip having a good surface quality can be manufactured stably even in the continuous operation for a long time.