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Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device

A technology for integral casting and production equipment, applied in quenching equipment, manufacturing tools, casting and molding equipment, etc., can solve the problems of wear resistance and impact toughness not meeting the requirements, increasing assembly difficulty and cost, and increasing construction costs for users. , to achieve the effect of no slag inclusion, improving hardness, correcting flatness and bending deformation

Active Publication Date: 2007-12-19
洛阳市钢峰工程机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process not only wastes a lot of working time but also increases construction costs for users
3. Choose GB35 steel plate to cut the cutting edge, drill holes, and adopt intermediate frequency heating and quenching treatment, which can only improve the hardness of the surface of the cutting edge (the surface hardness layer is about 3mm), and the core has no hardness, so the early wear resistance of the shovel edge plate It has been improved. After the 3mm thick hardness layer is worn, the inside is the same as the 16Mn steel plate, and the wear resistance and impact resistance toughness cannot meet the requirements.
4. A layer of 31Si2CrMnMo detachable small blades are installed on the shovel edge plate with screw connection. This structure and method cause the price of the shovel edge plate to be higher and increase the difficulty and cost of assembly.

Method used

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  • Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device
  • Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device
  • Integral casting alloy steel shovel edge plate for loader and its manufacturing process and device

Examples

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Effect test

example 1

[0027] Example 1: C: 0.26%, Mn: 1.10%, Si: 0.30%, Cr: 1.10%, Mo: 0.25%, the balance is iron, S, P≤0.035%.

example 2

[0028] Example 2: C: 0.20%, Mn: 1.20%, Si: 0.25%, Cr: 1.0%, Mo: 0.20%, the balance is iron, S, P≤0.035%.

example 3

[0029] Example 3: C: 0.28%, Mn: 0.90%, Si: 0.20%, Cr: 0.95%, Mo: 0.30%, the balance is iron, S, P≤0.035%.

[0030] The shovel edge plate of the present invention is obtained through an integral casting molding process and a heat treatment process.

[0031] In the casting process, the sand mold made of quartz sand and water glass as a binder is the same as the sand mold material of the existing casting process. A single direct feeding riser is used, that is, the riser is used as the sprue and the feeding port, and each riser is connected to the mold by a single feeding riser.

[0032]Since the cutting edge plate 1 is a narrow and long thin plate, it is very difficult to cast, and the existing casting process is prone to deformation, uneven thickness, internal shrinkage and slag inclusion defects. When pouring plates in the existing casting process, the pouring system needs to connect the riser 3 with two channels 4, as shown in Figure 3, the castings produced by this process a...

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Abstract

This invention provides loader main part-shovel edge board technology. Monoblock casting alloy steel shoved edge board and the board manufacturing technique and equipment is provided. AG25CrMnMo material is used, the main elements content of the material is that C: 0.02~0.28%, Mn: 0.90~1.20%, Si: 0.20~0.37%, Cr: 0.90~1.20%, Mo: 0.20~0.30%, rest is iron. The board is achieved by monoblock casting forming technique and through heat treatment. In quenching technology, board integer heated in quenching furnace is used, the type of board both sides clamping, both sides spraying quenching and parts spraying quenching is used, that is the whole board is quenched in quenching furnace, then the board is both sides clamped for both sides spraying quenching. The back parts of the board and connecting part of bucket body is out spraying quenching area, the two parts don't spraying quenching.

Description

Technical field [0001] The invention belongs to the main part of the loader—the cutting edge technology, and mainly relates to a production process and device of an integrally cast alloy steel cutting edge plate and the cutting edge plate for the loader. Background technique [0002] The cutting edge plate is a key part of the loader, which is installed at the front of the loader bucket to cut materials. This requires the cutting edge plate to have high wear resistance and impact toughness, that is, the quality of its wear resistance and impact resistance directly affects the working efficiency of the whole machine and the economic benefits of users. The high wear resistance of the cutting edge plate can not only reduce the replacement times of the cutting edge plate, but also save working time and money for the user. The impact resistance and toughness of the cutting edge plate are high. No curling, which improves the digging force and work efficiency of the loader. There...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/40E02F9/28C22C38/22B22C9/08C21D9/00C21D1/667
Inventor 魏刚峰
Owner 洛阳市钢峰工程机械制造有限公司
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