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A solid-liquid composite casting method for curved plate-shaped bimetal wear-resistant parts

A compound casting and bending plate technology, applied in the field of casting, to achieve the effect of improving service life and eliminating interface gaps

Active Publication Date: 2022-05-27
HANDAN HUIQIAO COMPOSITE MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2) The thickness is thinner, the weight is lighter, the thickness is about 20mm, and the weight of a single piece is 3-4kg. It is difficult to achieve all metallurgical bonding at the traditional solid-liquid bonding interface 3, especially the interface 3, there will be unbonded from the appearance gap

Method used

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  • A solid-liquid composite casting method for curved plate-shaped bimetal wear-resistant parts
  • A solid-liquid composite casting method for curved plate-shaped bimetal wear-resistant parts
  • A solid-liquid composite casting method for curved plate-shaped bimetal wear-resistant parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: bimetallic wear-resistant part of plow leg.

[0018] attached Figure 4 It is a schematic diagram of the solid-liquid composite modeling of the plow leg bimetal wear-resistant parts in this embodiment, with Figure 5 to attach Figure 4 A-A cross-sectional schematic diagram. The lost foam casting is adopted, and the runner 13, the inner runner 8, the frustum hole 7, the wear-resistant layer white module 5, the flat channel 11 and the effusion white module 12 are all made of the lost foam white module and bonded. The high chromium cast iron molten metal enters the cavity of the wear-resistant layer from the runner 13 , the ingate 8 and the frustum hole 7 , and then flows into the cavity of the effusion white module 12 through the flat channel 11 . In order to avoid the difficulty of adding sand to the inner corner of the bimetallic wear-resistant part of the plow leg, the resin sand 9 with good collapsibility is pre-filled before molding.

[0019] The m...

Embodiment 2

[0030] Example 2: Bimetal wear parts for loading bucket.

[0031] attached Image 6 It is a schematic diagram of the solid-liquid composite modeling of the bimetal wear-resistant part of the loading bucket in this embodiment, which also adopts lost foam casting. The liquid white modules 12 are all made of lost foam white modules and bonded. The high chromium cast iron molten metal enters the cavity of the wear-resistant layer from the runner 13 , the ingate 8 and the frustum hole 7 , and then flows into the cavity of the effusion white module 12 through the flat channel 11 . In order to avoid the difficulty of adding sand to the inner corner of the bimetal wear-resistant part of the loading bucket, resin sand 9 with good collapsibility is pre-filled before molding.

[0032] The method of solid-liquid compound casting for bimetal wear-resistant parts of loading bucket is as follows:

[0033] 1) Grassroots treatment. The base layer 1 is formed by bending low-carbon steel pla...

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Abstract

The invention discloses a solid-liquid composite casting method for curved plate bimetal wear-resistant parts. 1) Process the frustum holes at the ends of the bent ends of the base layer, the sum of the area of ​​the frustum holes is larger than the cross-sectional area of ​​the runner; clean the interface of the base layer and heat it, and sprinkle boric acid powder to form a boric acid layer. 2) Assemble the base layer with the wear-resistant layer white module, sprue and wing. The wings are designed on the four sides of the base, the inner runner is connected with the frustum hole, the inner corner is filled with resin sand, and the outer corner is bonded with the flat channel and the effusion white module. 3) The molten metal enters the cavity of the wear-resistant layer white module from the runner, the inner runner and the frustum hole, and then flows into the cavity of the effusion white module from the flat channel. 4) Use cold working to remove the wings, sprues and flat channels. The curved plate bimetal wear-resistant parts produced by the method eliminates the interface gap, and the high-chromium cast iron and the base layer are all metallurgically combined.

Description

technical field [0001] The invention is applied in the field of casting, and is suitable for solid-liquid composite casting of bimetallic wear-resistant parts, and in particular relates to a solid-liquid composite casting of a non-planar bonding interface. Background technique [0002] attached figure 1 It is a bimetallic wear-resistant part welded on the plow leg of the agricultural machinery deep-cultivation machine. Its shape is plate-shaped bending 90°, the inner angle is a right angle, and the outer angle is 270°. The base layer 1 of the inner angle is made of low-carbon steel with good weldability, and the outer angle is wear-resistant. Layer 2 is made of high-chromium cast iron with good wear resistance. When in use, it is welded on a right angle of the plow leg. The wear-resistant layer 2 plays an anti-wear effect, thereby well protecting the carbon steel plow leg. attached figure 2 It is a bimetallic wear-resistant part welded on the bottom or side of the loading...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16
CPCB22D19/16
Inventor 邢振国邢万里常连波符寒光白华斌魏儒赞申海斌李洪义梁顺星
Owner HANDAN HUIQIAO COMPOSITE MATERIAL TECH CO LTD