Alloy ripper tooth on a ripper and manufacturing method thereof

A technology of loosening teeth and scarifiers, which is applied in fields such as tillage tools, agricultural machinery and implements, etc., and can solve the problems of short service life of loosening teeth, reduced work efficiency, and high production costs, and achieves improved binding force and energy saving Dosage, the effect of improving compactness

Inactive Publication Date: 2015-10-14
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this kind of steel works in an environment with low impact force, the initial hardness is low and the wear resistance is poor. During use, various deformations often occur on the surface, causing the surface to wear and fall off. Replacement will increase costs, reduce work efficiency, and cause a lot of economic losses. Moreover, most of the ripper teeth on the ripper are integrally cast. To make the ripper teeth achieve high strength, wear resistance, and good toughness, a large amount of rare earth must be added. Metal, the production cost is high. In fact, when the scarifier is working, only the front part of the scarifier tooth works. The latter part is not used, worn, and replaced a lot. The frequent replacement of the scarifier tooth causes a lot of waste.

Method used

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  • Alloy ripper tooth on a ripper and manufacturing method thereof
  • Alloy ripper tooth on a ripper and manufacturing method thereof
  • Alloy ripper tooth on a ripper and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as Figures 1 to 3 As shown, an alloy loosening tooth on a scarifier includes two parts, the tooth tip 1 and the rear seat 2. The front end of the tooth tip 1 is trapezoidal, and the thickness of the front end is the thinnest. The rear end of the tooth tip 1 is connected to the rear seat 2 by casting, the material of the tooth tip 1 is alloy steel, and the material of the rear seat 2 is vermicular graphite cast iron.

[0027] The main function of the anti-off block 3 is to increase the contact area between the tooth tip and the back seat, improve the bonding force between the tooth tip and the back seat, and reduce the possibility of the tooth tip falling off. The anti-off block 3 can be flat or Arc-shaped, wherein the anti-off block 3 is arc-shaped and has stronger binding force.

[0028] The mass percentage of the chemical composition of the tooth tip is: C: 0.45%, Si: 1.1%, Mn: 1.7%, Nb: 0.08%, Mo: 0.2%, Ni: 0.25%, Cr: 1.8%, Al: 0.12% , Nd: 0.022%, B:...

Embodiment 2

[0042]Embodiment 2, the structure of this embodiment is the same as that of the loosening tooth described in embodiment 1.

[0043] The mass percentages of the chemical composition of the tooth tips in this embodiment are: C: 0.55%, Si: 1.3%, Mn: 1.9%, Nb: 0.1%, Mo: 0.25%, Ni: 0.3%, Cr: 2.1%, Al : 0.15%, Nd: 0.028%, B: 0.007%, S: 0.018%, P: 0.018%, the rest is Fe, the mass percentage of the chemical composition of the back seat is: C: 3.6%, Si: 2.3%, Mn: 0.6 %, Cr: 0.5%, Cu: 0.65%, S: 0.015%, P: 0.015%, and the rest is Fe.

[0044] The manufacturing method of the above-mentioned loosening tooth includes the following process steps:

[0045] 1. The production method of the tooth tip:

[0046] a. Put the raw materials for making tooth tips into the converter or intermediate frequency induction furnace for smelting;

[0047] b. The tapping temperature of the molten steel is about 1570°C. Add the rare earth alloy and stir for 3 minutes, then cast the alloy steel molten steel at...

Embodiment 3

[0057] Embodiment 3, the structure of this embodiment is the same as that of the loosening tooth described in Embodiment 1.

[0058] The mass percentages of the chemical components of the tooth tip described in this embodiment are: C: 0.3%, Si: 0.85%, Mn: 1.5%, Nb: 0.06%, Mo: 0.15%, Ni: 0.15%, Cr: 1.5%, Al: 0.09%, Nd: 0.015%, B: 0.003%, S: 0.015%, P: 0.015%, the rest is Fe, the mass percentage of the chemical composition of the back seat is: C: 2.6%, Si: 1.7%, Mn: 0.3%, Cr: 0.35%, Cu: 0.3%, S: 0.015%, P: 0.015%, and the rest is Fe.

[0059] The manufacturing method of the above-mentioned loosening tooth includes the following process steps:

[0060] 1. The production method of the tooth tip:

[0061] a. Put the raw materials for making tooth tips into the converter or intermediate frequency induction furnace for smelting;

[0062] b. The tapping temperature of the molten steel is about 1530°C. Add the rare earth alloy and stir for 2 minutes, then cast the alloy steel molten...

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PUM

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Abstract

The invention discloses alloy soil loosening teeth on a soil loosening machine and a manufacturing method thereof. Each alloy soil loosening tooth comprises a tooth tip and a rear base, the front end of each tooth tip is in a trapezoid shape, the thickness of the topmost end part of each tooth tip is smallest, the rear end of each tooth tip is provided with a supporting protection block, the rear end of each tooth top is connected with the corresponding rear base in a casting mode, each tooth tip is made of alloy steel, and each rear base is made of vermicular graphite cast iron. According to the alloy soil loosening teeth on the soil loosening machine, an original inblock cast structure is changed, the use quantity of rare alloy is saved, the production cost is reduced, the soil loosening teeth with high strength, good abrasive resistance and good tenacity are manufactured with the adoption of the scientific manufacturing method and heat treatment, the problem that original soil loosening teeth are not resistant to wear is solved, the service life of the soil loosening teeth is prolonged by 2 times to 2.8 times, and the replacing cost is reduced.

Description

technical field [0001] The invention relates to an alloy ripper tooth on a ripper and a manufacturing method thereof. The high-strength ripper tooth is formed by improving the structure, rationalizing the material composition, brand-new manufacturing method and heat treatment process. Background technique [0002] The material of the ripper teeth on the ripper currently used is generally high manganese steel, which has a single-phase austenite structure at high temperature, has good toughness, and has high wear resistance due to the work hardening of the surface layer under the action of impact load. sex. However, when this kind of steel works in an environment with low impact force, the initial hardness is low and the wear resistance is poor. During use, various deformations often occur on the surface, causing the surface to wear and fall off. Replacement will increase costs, reduce work efficiency, and cause a lot of economic losses. Moreover, most of the ripper teeth on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16C22C38/58C22C38/36A01B33/10
Inventor 蒋玉俊
Owner SOUTHEAST UNIV
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