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Method for manufacturing excavator dipper teeth

A technology for excavator bucket teeth and a manufacturing method, which is applied to manufacturing tools, earthmoving machines/shovels, casting and forming equipment, etc., can solve the problems of complex process equipment, low production efficiency, and high manufacturing costs, and achieve a simple production process. , low cost, good product quality effect

Inactive Publication Date: 2010-10-20
姚会元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it also has its disadvantages, such as high manufacturing cost, low production efficiency, complex process equipment, etc.

Method used

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  • Method for manufacturing excavator dipper teeth
  • Method for manufacturing excavator dipper teeth
  • Method for manufacturing excavator dipper teeth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Excavator bucket tooth manufacturing method of the present invention is:

[0020] a. Manufacture model 7 according to the shape of bucket teeth. Model 7 is made of polystyrene material, which is what we usually call lost foam;

[0021] b. Brush the surface of model 7 with refractory paint, and form a hard shell after drying;

[0022] c. Connect several models 7 in series to a set of pouring system 3, then put them into the sand box 1 and fill them with dry sand 5, and the dry sand 5 is also injected into the cavity 8 and hole 9 of the model 7 at the same time, Vibrate, and cover the top of the sand box 1 with the plastic film 4;

[0023] d. Start the vacuum pump to empty the air in the sand box 1 through the vacuum pipeline 10, so that the dry sand 5 has a certain hardness;

[0024] e. Introduce acetylene and oxygen to burn off the polystyrene model 7, and the gas produced is discharged from the air outlet 6 connected with the model, leaving the mold cavity formed b...

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Abstract

The invention relates to a method for manufacturing excavator dipper teeth, which is technically characterized in that: the excavator dipper teeth are manufactured by a lost foam hollow-shell casting process; and before molten steel is cast, a polystyrene model is burned off by a combustion method, and a cavity like clay sand is obtained; therefore, after the molten steel is cast into the cavity, carbon element generated by gasification of the polystyrene model cannot permeate the surface of the molten steel so as to avoid cast product scrap caused by carbon pick-up of molten steel and slag formation. The method for manufacturing the excavator dipper teeth has the advantages of simple production process, low cost, high efficiency, good product quality and the like.

Description

technical field [0001] The invention relates to a method for manufacturing excavator bucket teeth. Background technique [0002] Bucket teeth are parts used on the front end of the excavator bucket. When the excavator is working, it is used to excavate materials, which are wear-resistant and vulnerable parts. [0003] Existing excavator bucket teeth are usually manufactured by methods such as precision casting, resin sand casting, and forging. These methods have their advantages, such as high dimensional accuracy, smooth surface and so on. But it also has its disadvantages, such as high manufacturing cost, low production efficiency, complicated process equipment, etc. Contents of the invention [0004] The purpose of the present invention is to overcome above-mentioned defective of prior art, provide a kind of manufacturing method of excavator bucket tooth with simple production process, low cost, high efficiency, good product quality. [0005] To achieve the above obje...

Claims

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Application Information

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IPC IPC(8): B22C9/04B22C3/00E02F9/28
Inventor 姚会元
Owner 姚会元
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