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A kind of high-strength casting for mine and construction mobile crushing station and its production process

A mobile crushing and construction technology, applied in the improvement of process efficiency, casting mold, casting mold composition, etc., can solve problems such as poor casting performance and difficult production, and achieve improved mechanical properties, reduced maintenance costs, and corrosion resistance. strong effect

Active Publication Date: 2017-09-12
SANMING CITY YIJUN MACHINERY FOUNDRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-strength casting of a mobile crushing station for mines and constructions and its production process, and aims to solve the problems of poor performance and difficult production of castings for mobile crushing stations for mines and constructions

Method used

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  • A kind of high-strength casting for mine and construction mobile crushing station and its production process
  • A kind of high-strength casting for mine and construction mobile crushing station and its production process
  • A kind of high-strength casting for mine and construction mobile crushing station and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A production process for high-strength castings of mobile crushing stations for mines and buildings, the steps of which are as follows:

[0027] (1) Melting in an intermediate frequency furnace with a neutral sand lining, mixing steel shavings, low-carbon punched briquettes without rust and micro-carbon ferrochrome, then heating and melting in an electric furnace to form molten steel in a molten state.

[0028] (2) Put the molten steel into the AOD refining furnace for refining.

[0029] (3) Ferrosilicon and electrolytic manganese are added to the refined molten steel for smelting.

[0030] (4) Add the returned material of the same grade after derusting for smelting, and after the molten steel is melted, take a sample and analyze its chemical composition with a spectrometer.

[0031] (5) According to the results of chemical composition analysis, the alloy composition of molten steel is fine-tuned; the added alloy material is baked to 200°C before adding.

[0032] (6) ...

Embodiment 2

[0047] A production process for high-strength castings of mobile crushing stations for mines and buildings, the steps of which are as follows:

[0048] (1) Melting in an intermediate frequency furnace with a neutral sand lining, mixing steel shavings, low-carbon punched briquettes without rust and micro-carbon ferrochrome, then heating and melting in an electric furnace to form molten steel in a molten state.

[0049] (2) Put the molten steel into the AOD refining furnace for refining.

[0050] (3) Ferrosilicon and electrolytic manganese are added to the refined molten steel for smelting.

[0051] (4) Add the returned material of the same grade after derusting for smelting, and after the molten steel is melted, take a sample and analyze its chemical composition with a spectrometer.

[0052] (5) According to the results of chemical composition analysis, the alloy composition of molten steel is fine-tuned; the added alloy material is baked to 200°C before adding.

[0053] (6) ...

Embodiment 3

[0068] A production process for high-strength castings of mobile crushing stations for mines and buildings, the steps of which are as follows:

[0069] (1) Melting in an intermediate frequency furnace with a neutral sand lining, mixing steel shavings, low-carbon punched briquettes without rust and micro-carbon ferrochrome, then heating and melting in an electric furnace to form molten steel in a molten state.

[0070] (2) Put the molten steel into the AOD refining furnace for refining.

[0071] (3) Ferrosilicon and electrolytic manganese are added to the refined molten steel for smelting.

[0072] (4) Add the returned material of the same grade after derusting for smelting, and after the molten steel is melted, take a sample and analyze its chemical composition with a spectrometer.

[0073] (5) According to the results of chemical composition analysis, the alloy composition of molten steel is fine-tuned; the added alloy material is baked to 200°C before adding.

[0074] (6) ...

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Abstract

The invention discloses a high-strength casting of a mobile crushing station for mines and buildings. The high-strength casting comprises the following chemical components by weight percent: 0.15-0.35% of C, 0.50-2.50% of Si, Mn not larger than 2.5%, P not larger than 0.04%, S not larger than 0.02%, 0.3-0.5% of Cr, 0.4-0.6% of Ni, Mo not larger than 0.5%, Cu not larger than 0.2%, 0.25-0.35% of V, and the balance of Fe and unavoidable trace impurities. The invention further discloses a production process of the high-strength casting; the casting has good mechanical properties and wear and corrosion resistance, still has good toughness in low temperature conditions, and is suitable for the production of the mobile crushing station for mines and buildings.

Description

technical field [0001] The invention relates to a casting and its production process, in particular to a high-strength casting of a mobile crushing station for mines and buildings and its production process. Background technique [0002] Mobile crushing stations for mines and constructions are machines directly used for mineral mining and beneficiation. Including mining machinery and beneficiation machinery. Taking the crusher as an example, the crusher is a mobile crushing station for mining and construction, especially a type of heavy machinery in large and efficient mobile crushing stations, which is widely used in industrial production. In the crusher, in addition to the liner, it also includes important parts such as the cylinder, the adjustment ring, the main bracket, the counterweight, the cone, etc. The impact load of these parts is smaller than the liner, but it still needs to have high strength and High wear resistance. The castings of traditional mining and con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/58C22C38/46C22C33/06C21C7/06C21D1/18B22C9/02B22C9/12
CPCY02P10/20
Inventor 刘薇刘渊毅郑明华黄志达蔡建
Owner SANMING CITY YIJUN MACHINERY FOUNDRY
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