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Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof

A loader and hopper technology is applied in the field of anti-wear treatment and special welding wire for loader hopper, which can solve the problems of low service life and poor wear resistance, and achieve the effect of improving service life, avoiding frequent maintenance and saving steel.

Inactive Publication Date: 2010-06-02
SHANDONG LINGONG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of poor wear resistance and low service life of existing loader hoppers used for river sand mining and loading and unloading, the present invention provides a method for implementing anti-wear treatment on loader hoppers and its special welding wire

Method used

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  • Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof
  • Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Including two processes of manufacturing special surfacing flux cored wire and surfacing hopper wear-resistant plate.

[0049] The manufacturing steps of special surfacing flux-cored wire for loader river sand hopper are as follows:

[0050] (1) Determine the alloy system of the flux-cored wire deposited metal according to the working conditions of the river sand hopper, and weigh the following powder (in parts by weight, unit: kg): 30 parts of high-carbon ferrochromium, 18 parts of metallic chromium, 10 parts of boron iron, 6 parts of vanadium iron, 2 parts of high carbon ferromanganese, 0.8 parts of rare earth ferrosilicon, 4 parts of ferromolybdenum, 5 parts of graphite, 2 parts of titanium iron, 2 parts of aluminum-magnesium alloy, 1 part of NaF.

[0051] The particle diameter of the above powder is 60-270 μm.

[0052] (2) Mix the weighed powders, and mix the powders with a conventional powder mixer for 20 minutes to prepare powder for flux-cored welding wire.

[0053] (3) C...

Embodiment 2

[0071] Including two processes of manufacturing special surfacing flux cored wire and surfacing hopper wear-resistant plate.

[0072] The manufacturing steps of special surfacing flux-cored wire for loader river sand hopper are as follows:

[0073] (1) Determine the alloy system of the flux-cored wire deposited metal according to the working conditions of the river sand hopper, and weigh the following powder (in parts by weight, unit: kg): 22 parts high-carbon ferrochrome, 15 parts metallic chromium, 10 parts of ferroboron, 6 parts of vanadium iron, 2 parts of high carbon ferromanganese, 0.8 parts of rare earth ferrosilicon, 3.5 parts of ferromolybdenum, 4 parts of tungsten iron, 3.5 parts of graphite, 2.5 parts of vanadium-nitrogen alloy, 0.5 parts of nitrogen-manganese alloy, 1.5 parts of ferro-titanium, 2.5 parts of aluminum-magnesium alloy, 0.5 parts of fluorite, 0.5 parts of potassium titanate.

[0074] The particle diameter of the above powder is 60-270 μm.

[0075] (2) Mix the...

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Abstract

The invention discloses a method for performing anti-wear treatment on a hopper of a loading machine, which comprises the following steps: using a low-carbon steel or low-alloy steel plate as a base plate, selecting a build-up welding flux-cored soldering wire of which the diameter is between 2.0 and 4.0 millimeters special for the hopper of the loading machine, and welding a wear-resisting layerof which the thickness is between 3.5 and 8.0 millimeters on the base plate by adopting a visible arc build-up welding or gas coverage build-up welding process to prepare a wear-resisting composite steel plate; by adopting a plasma cutting device, cutting out a left wear-resisting plate and a right wear-resisting plate in a right trapezoid shape respectively, a middle wear-resisting plate in an isosceles trapezoid shape, and two bottom plates in isosceles trapezoid shapes on the wear-resisting composite steel plate; leveling the plates; and putting the cut wear-resisting layers of the left wear-resisting plate, the middle wear-resisting plate, the two bottom plates and the right wear-resisting plate outwards, and welding the wear-resisting layers on the outside surface of the hopper bottomof the main cutting board side of the hopper respectively through gas shielded arc welding or welding rod arc welding so that the wear-resisting layers are integrated with the original hopper bottominto a whole. After the treatment by the method, the service life of the hopper is greatly improved, the frequent maintenances are avoided, the working efficiency of the loading machine is improved, and steel materials are saved.

Description

Technical field [0001] The invention relates to a method for processing a loader hopper, in particular to a method for implementing anti-wear treatment on a loader hopper used for river sand mining and loading and unloading and a special welding wire. Background technique [0002] The hopper in the working device of the loader is a vulnerable part, especially the teeth, main blade, and bottom (bottom of the hopper) of the hopper are vulnerable parts. Due to the intense abrasion during work, the hopper is prone to premature failure. Therefore, improving the wear resistance of the hopper and extending its life is one of the keys to improving the quality of the loader. [0003] At present, the hoppers of loaders in my country are mostly welded by Q345 steel plates. The following two methods are commonly used to improve wear resistance. One is to install HQ130, 22SiMn2, 22SiMn2TiB, NM360, NM400 and other wear-resistant steel plates at the bottom of the bucket by welding. A wear-resista...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P17/00B23K9/04B21D1/06B23K35/22
Inventor 支开印孙俊生迟峰李连刚王永汪贞伟夏兆沂
Owner SHANDONG LINGONG CONSTR MACHINERY
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