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A preformed brazing coating material for rotary tiller

A rotary tiller, preformed technology, applied in welding/cutting media/materials, metal processing equipment, welding equipment, etc., can solve the problem of difficulty in positioning, temperature, timing, quantitative, and easy to generate harmful gases and residues. , the inability of quantitative coating, etc., to avoid the waste of brazing coating materials, improve work efficiency, and achieve the effect of high reliability of brazing coating

Active Publication Date: 2021-07-02
CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When brazing rotary tiller blades with traditional slurry or strip brazing materials, there are problems such as quantitative coating, waste of man-hours and materials, and it is difficult to achieve high-efficiency brazing of rotary tiller blade positioning, constant temperature, timing, and quantification
In addition, the traditional slurry or strip-shaped brazing materials contain organic adhesives, which are prone to produce harmful gases and residues during the brazing process, polluting the environment; therefore, it is necessary to develop efficient and environmentally friendly brazing materials for rotary tillers

Method used

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  • A preformed brazing coating material for rotary tiller
  • A preformed brazing coating material for rotary tiller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] As shown in the accompanying drawings, a preformed brazing coating material for a rotary tiller is provided. The preformed brazing material is coated on the blade of the rotary tiller and forms a U-shaped knife sleeve in section. The inner cavity of the knife sleeve is Matching the blade of the rotary tiller, the raw materials for preparing the preformed brazing coating material are composed of the following components in parts by mass: 30-50 parts of tungsten carbide powder, 1-5 parts of flux-type binder, 0.1-1 part of toughening agent, 45-75 parts of nickel-based solder powder.

[0025] Further, the tungsten carbide powder is composed of tungsten carbide powder with a particle size of 40-60 mesh and tungsten carbide powder with a particle size of 160-200 mesh at a mass ratio of 1:5-1:2.

[0026] Further, the flux-type binder is composed of borax and water with a mass ratio of 3:1 to 2:1, and the preparation method of the flux-type binder comprises the following steps:...

Embodiment 2

[0037] A, prepare the mass parts of each component of the preformed brazing material: 25 parts of tungsten carbide powder, 1 part of flux type binder, 0.1 part of toughening agent, 73.9 parts of nickel-based solder powder; The dosage form binder is composed of borax and water with a mass ratio of 2:1;

[0038] B. The preparation method of brazing agent type binder includes the following steps: 1), weigh borax and water according to the mass ratio of borax: water is 2:1, add the above-mentioned water weighed into the weighed borax, add while adding Stir until the borax is completely dissolved, then stir for 3 to 5 minutes to form a uniform paste liquid; 2), put the paste liquid prepared in step 1) into the ceramic tank of the planetary ball mill for grinding, and the grinding speed of the planetary ball mill is 45r / min, the grinding time is 45-60min, and the flux-type binder is obtained;

[0039] C. Weigh 35 parts of tungsten carbide powder by mass, 1 part of flux-type binder,...

Embodiment 3

[0047] A, the mass fractions of each component for preparing the preformed brazing material are: 30 parts of tungsten carbide powder, 1.5 parts of flux type binder, 0.3 part of toughening agent, 68.2 parts of nickel-based solder powder; The dosage form binder consists of borax and water in a mass ratio of 2.5:1.

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Abstract

The invention provides a preformed brazing coating material for a rotary tiller. The preformed brazing material is coated on the blade of the rotary tiller and forms a U-shaped knife sleeve with a U-shaped section. The blades of the knife are matched, and the raw material for preparing the brazing coating material is made up of the following components: tungsten carbide powder, flux type binder, toughening agent, nickel-based solder powder, and the preparation method of the brazing coating material is : A. Calculated in parts by mass, take tungsten carbide powder, brazing agent type binder, toughening agent, nickel-based brazing filler metal powder and put them into a container for mixing, stirring, kneading and pressing to obtain an elastic powder group with a certain bonding strength B, placing the elastic dough obtained in step A into a mold for cold pressing to obtain a blank that matches the working surface of the rotary tiller; C, putting the blank into an oven for drying and cooling to prepare a preformed brazing coating material, the present invention It is suitable for brazing coating of rotary cultivating blades. With the heating in the furnace, it can realize high-efficiency brazing coating with positioning, constant temperature, timing and quantity, which can effectively avoid the waste of brazing coating materials and improve work efficiency.

Description

technical field [0001] The invention relates to a brazing coating material, in particular to a preformed brazing coating material for a rotary tiller. Background technique [0002] With the development of agriculture, especially the mechanization of agricultural production, the requirements for the wear resistance of agricultural machinery accessories are getting higher and higher. The rotary tiller is the main wear part of the rotary tiller. The wear and replacement of the rotary tiller causes great losses every year. Therefore, it is of great significance to use surface technology to prepare wear-resistant coatings on the surface of rotary tillers. [0003] At present, the application of surface technology to prepare wear-resistant coatings on the working face of rotary tillers is less, but the application of wear-resistant coatings to the working faces of certain parts is very common. Commonly used surface technologies include physical vapor deposition, chemical vapor d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40B23K35/30
CPCB23K35/3033B23K35/40
Inventor 龙伟民路全彬鲍丽董显秦建薛行雁李秀朋周许升
Owner CHINA INNOVATION ACADEMY OF INTELLIGENT EQUIP CO LTD
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