High-carbon steel ultrathin alloy ribbon and preparation technology thereof

Abstract

The invention discloses a high-carbon steel ultrathin alloy ribbon and the preparation technology thereof. The alloy ribbon comprises a base material of the high-carbon steel ultrathin alloy ribbon and a plating material; the base material of the high-carbon steel ultrathin alloy ribbon comprises the following ingredients, by weight: 1-10% of carbon, 18-22% of zinc, 1.2-2.4% of magnesium, 12-20% of copper, 5.5-7.5% aluminum, 0.05-0.15% of sulfur, 0.02-0.08% of phosphorus, 0.01-0.11% of chromium, 0.3-1.3% of manganese, 0.5-1.5% of barium sulfate, 0.2-0.6% of nickel, 0.1-0.6% of silicon, 0.1-0.8% of cadmium, 0.3-0.7% of scandium, 0.2-0.4% of strontium, 4-8% of nanometer ceramic powder, 0.3-0.5% of caesium, 1-5% of dibenzenesulfonamide and the balance iron; the plating material comprises, by weight, 22-28 parts of zinc, 14-18 parts of aluminum, 2-6 parts of fluorescent brightener, 1-6 parts of surfactant, 0.5-2.5 parts of indium, 1-3 parts of antioxidant and 0.2-0.8 parts of selenium. The invention achieves the advantages of reasonable formula and scientific technology, not only retains the excellent properties of the high-carbon steel including Stretch Resistance, high hardness, shock resistance, low production cost, safety and reliability, but also achieves the alloy ribbon that is ultrathin and not liable to break, and has good malleability.

Description

technical field [0001] The invention belongs to the technical field of high-carbon steel preparation, in particular to a high-carbon steel ultra-thin alloy strip and a preparation process thereof. Background technique [0002] High carbon steel is often called tool steel, the carbon content is from 0.60% to 1.70%, and it can be hardened and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%. After proper heat treatment or cold drawing hardening, high carbon steel has high strength and hardness, high elastic limit and fatigue limit (especially notch fatigue limit), and the cutting performance is acceptable, but the welding performance and cold plastic deformation ability are poor. Due to the high carbon content, cracks are prone to occur during water quenching, so double-liquid quenching (water quenching + oil cooling) is often used, an...

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Problems solved by technology

[0004] Similarly, high-carbon steel also has defects: 1. Poor thermal hardness. When the working temperature of the tool is higher than 200°C, its hardness and wear resistance drop sharply

3. Due to the influence of welding high temperature, the grain grows fast, and carbides are easy to accumulate and grow on the grain boundary, making the weld weak and reducing the strength of the welded joint

4. High carbon steel is more prone to hot cracks than medium carbon steel when welding

[0006] At present, the ultra-thin alloy strips produced by high-carbon steel generally have problems such as thin strips that are easy to break, poor shape, and insufficient hardness.