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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 poor wear resistance and low service life, and achieve the effects of avoiding frequent maintenance, improving service life and improving efficiency.

Inactive Publication Date: 2009-06-17
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

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] It includes two processes of manufacturing special surfacing welding flux cored wire and surfacing welding hopper wear plate.

[0049] The manufacturing steps of flux-cored wire for surfacing welding for river sand hoppers of loaders are as follows:

[0050] (1) According to the operating conditions of the river sand hopper, determine the alloy system of the flux-cored welding wire deposited metal, and weigh the following powders (in parts by weight, unit: kilogram): 30 parts of high-carbon ferrochrome, 18 parts of metal chromium, 10 parts of ferroboron, 6 parts of ferro-vanadium, 2 parts of high-carbon ferromanganese, 0.8 parts of rare earth ferrosilicon, 4 parts of ferromolybdenum, 5 parts of graphite, 2 parts of ferro-titanium, 2 parts of aluminum-magnesium alloy, and 1 part of NaF.

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

[0052] (2) Mix the weighed powders, and mix the powders with a conventional powder mixer for 20 minutes to ma...

Embodiment 2

[0071] It includes two processes of manufacturing special surfacing welding flux cored wire and surfacing welding hopper wear plate.

[0072] The manufacturing steps of flux-cored wire for surfacing welding for river sand hoppers of loaders are as follows:

[0073] (1) According to the working conditions of the river sand hopper, determine the alloy system of the flux-cored welding wire deposited metal, and take the following powder (in parts by weight, unit: kilogram): 22 parts of high-carbon ferrochrome, 15 parts of metal chromium, 10 parts of ferro-boron, 6 parts of ferro-vanadium, 2 parts of high-carbon ferromanganese, 0.8 parts of rare earth ferrosilicon, 3.5 parts of ferro-molybdenum, 4 parts of ferro-tungsten, 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, and 0.5 parts of potassium titanate.

[0074] The particle diameter of t...

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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 layer of 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 bottom of 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 bottom into 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 treatment method for 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 the special welding wire thereof. Background technique [0002] The hopper in the working device of the loader is a vulnerable part, especially the teeth of the hopper, the main knife plate, and the bottom of the hopper (the bottom of the hopper) are even more vulnerable parts. Due to the strong wear during work, the hopper is prone to premature failure, so improving the wear resistance of the hopper and prolonging 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 wear-resistant steel plates such as HQ130, 22SiMn2, 22SiMn2TiB, NM360, and NM400 at the...

Claims

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Application Information

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Patent Type & Authority Applications(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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