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Coulter with bionic cladding layer on surface and preparation method of coulter

A cladding layer and coulter technology, which is applied to coulters with bionic cladding layers on the surface and the field of preparation thereof, can solve the problems of shortened service life of coulters, difficult to guarantee machining accuracy, large coulter wear and the like, and achieves the service life of the coulters Extend, improve wear resistance and corrosion resistance, and reduce farming resistance

Inactive Publication Date: 2020-05-22
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bionic cladding layer is mainly prepared by die forging or continuously changing various processing parameters by laser sintering. These existing methods are complex in processing, low in efficiency, and difficult to guarantee processing accuracy
[0005] When the existing reversing plows and common plows are used for plowing, the coulters are greatly worn and the service life of the coulters is greatly shortened.

Method used

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  • Coulter with bionic cladding layer on surface and preparation method of coulter
  • Coulter with bionic cladding layer on surface and preparation method of coulter
  • Coulter with bionic cladding layer on surface and preparation method of coulter

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preparation example Construction

[0068] The present application also provides a method for preparing a coulter whose surface has a bionic cladding layer according to any one of the above, wherein the method for preparing the moldboard comprises the following steps in sequence:

[0069] 1) Substrate surface pretreatment: pretreat the substrate of the moldboard, to remove dust, grease and oxide film adhering to the outer surface of the substrate of the moldboard;

[0070] 2) Grinding and polishing: first use sandpaper to grind the outer surface of the base body of the moldboard, and then polish the outer surface of the base body of the moldboard to a mirror state with a diamond abrasive paste with a particle size of 1.0 μm;

[0071] 3) Cleaning: including substrate cleaning and vacuum chamber cleaning, first the substrate of the moldboard is ultrasonically cleaned to wash away the residual dirt on the outer surface of the substrate of the moldboard;

[0072] Clean the vacuum chamber with argon until the oxygen ...

Embodiment 1

[0095] A coulter with a bionic cladding layer on its surface, comprising a coulter, a bionic cladding layer is arranged on the outer surface of the base body of the coulter, and the bionic cladding layer is a convex hull type bionic cladding layer 102; A plurality of convex hulls 1021 are arranged on the soil-touching outer surface (the outer surface in contact with the soil) of the convex-hull biomimetic cladding layer 102;

[0096] The biomimetic cladding layer includes the following components in mass percentage: C: 4.2%, B: 1.8%, Si: 2.2%, Cr: 26.5%, Ni: 4.5%, W: 2.6%, Co: 1.8%, Mo : 4.2%, Fe: balance;

[0097] A coulter with a biomimetic cladding layer on the surface described in Example 1 further includes a ploughshare, and an iron-based cladding layer 201 is provided on the outer surface of the base body of the plowshare;

[0098] The iron-based cladding layer 201 includes the following components in mass percentage: C: 4.2%, B: 1.6%, Si: 2.6%, Cr: 28.2%, Ni: 5.2%, W: ...

Embodiment 2

[0125] A coulter with a bionic cladding layer on its surface, comprising a coulter, a bionic cladding layer is provided on the outer surface of the base body of the coulter, and the bionic cladding layer is a pit-shaped bionic cladding layer 101; A plurality of pits 1011 are arranged on the soil-touching outer surface (the outer surface in contact with the soil) of the pit-type bionic cladding layer 101;

[0126] The biomimetic cladding layer includes the following components in mass percentage: C: 4.3%, B: 2.1%, Si: 2.6%, Cr: 26.5%, Ni: 4.5%, W: 2.6%, Co: 2.2%, Mo : 3.9%, Fe: balance;

[0127] A coulter with a biomimetic cladding layer on the surface described in Example 2 also includes a plowshare, and an iron-based cladding layer 201 is provided on the outer surface of the base body of the plowshare;

[0128] The iron-based cladding layer 201 includes the following components in mass percentage: C: 4.2%, B: 2.3%, Si: 2.7%, Cr: 28.2%, Ni: 5.2%, W: 2.6%, Co: 2.1% , Mo: 4.1%...

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Abstract

The invention provides a coulter with a bionic cladding layer on the surface. The coulter is characterized in that the bionic cladding layer is arranged on the outer surface of a base body of a ploughwall, and the shape of the bionic cladding layer is prepared into a pit type, a convex hull type, a scale type or a rib type according to the non-smooth surfaces of body surfaces of soil animals; andthe coulter further comprises a plough share, and an iron-based cladding layer is arranged on the outer surface of a base body of the plough share. The invention further provides a preparation methodof the coulter with the bionic cladding layer on the surface. The bionic cladding layer is prepared through a laser 3D printing method, and the iron-based cladding layer is prepared through a synchronous laser cladding method. According to the coulter and the method, the bionic cladding layer on the surface of the plough wall has good erosion abrasive wear resistance, and the iron-based claddinglayer on the surface of the plough share has good impact abrasive wear resistance, so that the wear resistance and the corrosion resistance of the coulter during ploughing are greatly improved, and the coulter has the advantages of being long in service life, small in friction coefficient, small in tillage resistance and the like.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a coulter with a bionic cladding layer on the surface and a preparation method thereof. Background technique [0002] The plow share and plow wall in the conventional plow are in direct contact with the soil during work, and abrasive wear occurs, resulting in wear failure and fracture failure. In addition, the soil in the cultivated field is a complex multiphase environment composed of solid, liquid, and gaseous substances. The crop residues such as water, fertilizer residues, pesticide residues, dissolved salts, oxygen, microorganisms, and weeds contained in it will affect the plowshare. Corrosion occurs on the surface of the soil-contacting parts such as plowshares and plowboards. Corrosion and wear occur along with the interaction between the surface of plowshares and plowwalls and other soil-contacting parts and the soil. The existence of corrosion will speed up the...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C38/56C22C38/54C22C38/34C22C38/44C22C38/52A01B15/00
CPCA01B15/00C22C38/34C22C38/44C22C38/52C22C38/54C22C38/56C23C24/103
Inventor 夏国峰杨学锋李丹刘文波万壮王守仁段德荣乔阳王高琦温道胜刘文涛李发家王勇
Owner UNIV OF JINAN
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