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Method for casting special high-alloy steel track shoe for large mining machinery

A high-alloy steel and track shoe technology, which is applied to casting molding equipment, casting molds, cores, etc., can solve problems such as high maintenance costs, serious surface wear, and short track life, so as to reduce maintenance costs, prolong service life, low cost effect

Active Publication Date: 2015-02-25
SUFA HENGDIAN MACHINERY CNNC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the material needs to be high-alloy steel, the product produced in the industry has the characteristics of poor welding performance
At the same time, the crawler is mainly used in mining machinery, the surface wear is serious, the crawler life is short, and the maintenance cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: A casting method of high-alloy steel track shoes for large-scale mining machinery, comprising the following steps:

[0025] Step 1: Model preparation. Before modeling and core making, it is necessary to confirm that the mold is qualified and make a mark.

[0026] Step 2: Molding, through the alkali phenolic resin sand process, and after the molding is completed, the sand mold and the mold are separated from the mold.

[0027] Step 3: paint baking, the time interval between paint baking and sand mold ejection should not be less than 2 hours, bake before coating, heat slowly and evenly when heating and baking, and change it when the surface of the sand mold has water vapor overflowing. For high-fire baking, the surface temperature of the sand mold is controlled at 150°C until the water vapor runs out. The baking is divided into at least 2 times, with an interval of half an hour between each baking. When the temperature of the sand mold drops to the point whe...

Embodiment 2

[0036] Embodiment 2: A casting method of high-alloy steel track shoes for large-scale mining machinery, comprising the following steps:

[0037]Step 1: Model preparation. Before modeling and core making, it is necessary to confirm that the mold is qualified and make a mark.

[0038] Step 2: Molding, through the alkali phenolic resin sand process, and after the molding is completed, the sand mold and the mold are separated from the mold.

[0039] Step 3: paint baking, the time interval between paint baking and sand mold ejection should not be less than 2 hours, bake before coating, heat slowly and evenly when heating and baking, and change it when the surface of the sand mold has water vapor overflowing. For high-fire baking, the surface temperature of the sand mold is controlled at 180°C until the water vapor runs out. The baking is divided into at least 2 times, with an interval of half an hour between each baking. When the temperature of the sand mold drops to the point wher...

Embodiment 3

[0047] Embodiment 3: A casting method of high-alloy steel track shoes for large-scale mining machinery, comprising the following steps:

[0048] Step 1: Model preparation. Before modeling and core making, it is necessary to confirm that the mold is qualified and make a mark.

[0049] Step 2: Molding, through the alkali phenolic resin sand process, and after the molding is completed, the sand mold and the mold are separated from the mold.

[0050] Step 3: paint baking, the time interval between paint baking and sand mold ejection should not be less than 2 hours, bake before coating, heat slowly and evenly when heating and baking, and change it when the surface of the sand mold has water vapor overflowing. For high-fire baking, the surface temperature of the sand mold is controlled at 165°C until the water vapor runs out. The baking is divided into at least 2 times, with an interval of half an hour between each baking. When the temperature of the sand mold drops to the point whe...

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PUM

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Abstract

The invention discloses a method for casting a special high-alloy steel track shoe for large mining machinery. The method mainly comprises the following steps: preparing a model, modeling, baking coatings, performing mould assembling, smelting, pouring, unpacking, performing gas cutting, cleaning sand, normalizing, performing carbon gouging, performing shot blasting, polishing and performing nondestructive testing. The method provided by the invention is simple and convenient and is low in cost, the service performance of the high-alloy steel track shoe for the large mining machinery can be enhanced, the surface wear resistance is enhanced, the service life is prolonged, and the maintenance cost is reduced.

Description

technical field [0001] The invention relates to a casting method of a track shoe, in particular to a casting method of a special high-alloy steel track shoe for large-scale mining machinery. Background technique [0002] With the development and progress of construction machinery design and manufacturing technology, the demand for high-alloy steel track shoes of large-scale construction machinery has increased significantly, and the requirements for its technology and quality have continued to increase. Track shoes are one of the chassis parts of construction machinery. They are used in excavators, bulldozers, etc. They are important parts that withstand impact and high loads. They are used in harsh conditions and are vulnerable parts. Performance requirements are demanding. [0003] At present, the track shoes on the market adopt a solid design, and the materials and manufacturing processes are also different. The weight of a single track shoe is as high as 800 kg or even ...

Claims

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Application Information

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IPC IPC(8): B22C9/02B22C9/22C21C7/064C22C38/38C22C38/22C22C38/24C22C38/58C22C38/44C22C38/46
CPCB22C9/02B22C9/22C21C7/064C22C38/20C22C38/22C22C38/24C22C38/38C22C38/42C22C38/44C22C38/46C22C38/58
Inventor 谢小兵
Owner SUFA HENGDIAN MACHINERY CNNC
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