Production method of high strength mixed rare earth metal filament core-spun wire

Abstract

THe GBX-5 type wire covering machine made in China is modified. Thus, 13 sets of rolling wheels are reduced to 8 sets of rolling wheels. The wire of mixed rare earth RE-Ce45La32Nd8 is as the law material, and 08AI flexible strip steel as the covering material. The repeated sewing mode with two sides and two layers is adopted. Continuous processing through 8 sets of rolling wheels groups obtains the covered wire with diameter 2.5-5.5 mm. The speed of manufacturing wire can be adjusted at will. The invented method provides the features of reducing the encrusting matter of oxide in the steel, increasing recovery factor of rare earth and eliminating the deterioration of the covering layer caused by the oxide of the rare earth.

Description

Technical field: [0001] The invention relates to the technical field of cored wire processing, in particular to a RE-Ce 45 La 32 Nd 8 A production method of a high-strength mixed rare earth wire cored wire. Background technique: [0002] At present, the rare earth additives used in steelmaking are mostly naked cerium-rich (Ce ≥ 45%) mixed rare earth metal wires, which are continuously added to the molten steel in the mold of the continuous casting machine through special wire feeding equipment. Metamorphic inclusions, deoxidation and desulfurization to purify molten steel and microalloying, improve the physical and chemical properties of steel. However, due to the low melting point (861°C) of cerium (Ce ≥ 45%), which is the main component in the naked cerium-rich (Ce ≥ 45%) mixed rare earth metal wire, when it is added, it will melt at high temperature when it penetrates the mold slag layer, forming a large amount of Rare earth-oxygen-sulfur inclusions lead to the deteri...

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Problems solved by technology

Therefore, it still cannot meet the requirements of steelmaking production

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