Wear-resisting, high-toughness and high-strength excavator bucket tooth and manufacturing method thereof

A technology for excavator bucket teeth and a manufacturing method, which is applied to earth moving machines/shovels, construction, etc., can solve problems such as the inability to meet the high toughness requirements of excavator bucket teeth, achieve a simple and efficient manufacturing method, and increase graphite balls. Number, strength and toughness enhancement effect

Inactive Publication Date: 2018-09-04
安徽省宁国市亚晨碾磨铸件有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the improvement of excavator bucket teeth performance requirements, the existing excavator bucket teeth are often difficult to meet the market demand
[0003] The Chinese invention patent with the publication number CN 103014519 A discloses a "silicon-manganese alloy steel bucket tooth casting for excavators and its processing technology", which adds Ca, Mg and rare earth elements Y and Nd to purify molten steel and refine The crystal grains are reduced, the sha

Method used

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  • Wear-resisting, high-toughness and high-strength excavator bucket tooth and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A wear-resistant, high-toughness, and high-strength excavator bucket tooth, the weight percentage of each element composition is: C: 3.65%, Si: 2.42%, Mn: 0.81%, Mg: 0.32%, Cu: 1.32%, Cr: 0.41 %, Ce: 0.08%, Mo: 0.09%, Te: 0.18%, Y: 0.07%, Nd: 0.018%, P≤0.02%, S≤0.02%, and the balance is Fe.

[0023] The method for manufacturing the above-mentioned wear-resistant, high-toughness, and high-strength excavator bucket teeth includes the following steps:

[0024] (1) After batching, each raw material is added to an intermediate frequency induction furnace for smelting. During the smelting process, the temperature of the molten iron is guaranteed to be 1550°C to obtain a molten iron with qualified chemical composition, and then static slag removal treatment is carried out;

[0025] (2) Mix cerium oxide with 0.12% of the total weight of molten iron and rare earth magnesium alloy nodulizer with 1.25% of the total weight of molten iron and add it into the nodulizer bag, and cover...

Embodiment 2

[0030] A wear-resistant, high-toughness, and high-strength excavator bucket tooth, the weight percentage of each element composition is: C: 3.9%, Si: 2.5%, Mn: 0.9%, Mg: 0.4%, Cu: 1.5%, Cr: 0.35 %, Ce: 0.1%, Mo: 0.09%, Te: 0.25%, Y: 0.06%, Nd: 0.01%, P≤0.02%, S≤0.02%, and the balance is Fe.

[0031] The method for manufacturing the above-mentioned wear-resistant, high-toughness, and high-strength excavator bucket teeth includes the following steps:

[0032] (1) After batching, each raw material is added to an intermediate frequency induction furnace for smelting. During the smelting process, the temperature of the molten iron is guaranteed to be 1580°C, and the molten iron with qualified chemical composition is obtained, and then static slag removal is carried out;

[0033] (2) Mix cerium oxide with 0.15% of the total weight of the molten iron and a rare earth magnesium alloy nodulizer with a total weight of 1.12% of the molten iron, and then add it to the nodulizer bag, and c...

Embodiment 3

[0038] A wear-resistant, high-toughness, and high-strength excavator bucket tooth, the weight percentage of each element composition is: C: 3.76%, Si: 2.3%, Mn: 0.65%, Mg: 0.2%, Cu: 1.2%, Cr: 0.5 %, Ce: 0.06%, Mo: 0.05%, Te: 0.1%, Y: 0.05%, Nd: 0.008%, P≤0.02%, S≤0.02%, and the balance is Fe.

[0039] The method for manufacturing the above-mentioned wear-resistant, high-toughness, and high-strength excavator bucket teeth includes the following steps:

[0040] (1) After batching, each raw material is added to an intermediate frequency induction furnace for smelting. During the smelting process, the temperature of the molten iron is guaranteed to be 1520°C, and the molten iron with qualified chemical composition is obtained, and then static slag removal is carried out;

[0041] (2) Mix cerium oxide with 0.12% of the total weight of molten iron and rare earth magnesium alloy nodulizer with 1.1% of the total weight of molten iron and add it into the nodulizer bag, and cover a laye...

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Abstract

The invention provides a wear-resisting, high-toughness and high-strength excavator bucket tooth and a manufacturing method thereof. The wear-resisting, high-toughness and high-strength excavator bucket tooth is prepared from the following element components in percentage by weight: 3.4 to 3.9 percent of C, 2.3 to 2.6 percent of Si, 0.65 to 0.9 percent of Mn, 0.2 to 0.4 percent of Mg, 1.2 to 1.6 percent of Cu, 0.35 to 0.5 percent of Cr, 0.05 to 0.1 percent of Ce, 0.05 to 0.11 percent of Mo, 0.1 to 0.25 percent of Te, 0.05 to 0.08 percent of Y, 0.008 to 0.02 percent of Nd, less than or equal to0.02 percent of P, less than or equal to 0.02 of S and the balance of Fe. The manufacturing method mainly comprises the steps of melting, carrying out spheroidization treatment and inoculation treatment, forging and carrying out heat treatment; the excavator bucket tooth prepared by the invention has good wear resistance and high strength and also has excellent toughness; the manufacturing methodis simple and efficient.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to a wear-resistant, high-toughness, high-strength excavator bucket tooth and a manufacturing method thereof. Background technique [0002] On the construction site, the excavator is a kind of machine that is often used. If there is no excavator, the construction progress will be very slow if it is all manual. The bucket teeth on the excavator are the key parts of the work. Excavator bucket teeth are wearing parts that are consumed in large quantities in mining operations. The working conditions are harsh, and most of the failure modes are wear and tear, and a few of them are broken. The bucket teeth are in direct contact with ore, sand, rock and other materials. When in contact with materials, it not only bears the impact, but also bears the bending moment. During the service process, the tip of the bucket teeth is subject to large impact and sliding abrasive wear, and various...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C37/06C22C33/10C21D1/20C21D5/00E02F9/28
Inventor 张玉珍张向阳张晓红谢皓宇程映新
Owner 安徽省宁国市亚晨碾磨铸件有限责任公司
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