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Casting mold of conical sand maker breaking wall and casting process

Technology of a cone sand making machine and casting process

Active Publication Date: 2013-03-13
ZHEJIANG SHUANGJIN MACHINERY HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The common disadvantages of the above-mentioned background technologies are: first, poor wear resistance, resulting in high crushing costs; second, poor feeding effect, poor casting density, and easy damage

Method used

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  • Casting mold of conical sand maker breaking wall and casting process
  • Casting mold of conical sand maker breaking wall and casting process
  • Casting mold of conical sand maker breaking wall and casting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: with reference to attached Figure 1-3 . A pouring mold casting process for the crushing wall of a cone sand making machine, the height of the crushing wall forming cavity 2 in the sand box 1 is smaller than the height of the pouring riser 3 or the volume of the forming cavity 2 is smaller than the pouring riser 3 volume, or the high chromium cast iron The weight of the crushing wall is less than that of the pouring riser. Pour high-chromium cast iron into the crushing wall molding cavity 2 and the pouring riser 3, and then hang the sand box 1 on a high-frequency vibration platform for high-frequency vibration. After cooling A high-density high-chromium cast iron crushing wall can be obtained. The inner wall and the outer wall of the crushing wall forming die cavity 2 are provided with a plurality of built-in cold irons 4 and external cold irons 5, and the cold irons 4 and 5 are evenly distributed. A circle of the pouring riser 3 is provided with a plura...

Embodiment 2

[0017] Embodiment 2: with reference to attached image 3 . A high-frequency vibration platform for the pouring mold of the broken wall of the cone sand making machine. One or more compression springs 103 are placed at the four corners of the rectangular support 101, and the compression spring 103 is equipped with a pressure-bearing vibration platform 104 and a high-frequency vibrator 105. It is located in the middle of the back of the pressure-bearing vibration platform 104 and drives the pressure-bearing vibration platform to vibrate at high frequency. A pressing plate 102 is disposed on the lower end surface of the compression spring 103 . Angular baffles 105 are provided at the four corners of the platform surface of the pressure-bearing vibration platform 104 . The pressure-bearing vibration platform 104 is composed of a platen 109, a vertical plate 108 and a four-corner spring top plate 107. The vertical plate 108 is vertically welded on the back of the platen 109, and ...

Embodiment 3

[0018] Embodiment 3: with reference to attached figure 1 . A broken wall pouring mold for a cone sand making machine, comprising a sand box 1, the height of the broken wall forming mold cavity 2 in the sand box 1 is smaller than the height of the pouring riser 3 or the volume of the forming mold cavity 2 is smaller than the volume of the pouring riser 3, and the pouring riser 3 circles are provided with a plurality of riser spacers 6. The inner and outer walls of the crushing wall molding cavity 2 are provided with a plurality of built-in cold irons 4 and external cold irons 5 . The pouring riser 3 is provided with a plurality of runners 7 .

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Abstract

The invention relates to a casting mold of a conical sand maker breaking wall and a casting process capable of achieving the effect of no shrinkage cavity and effectively improving the cast density during casting feeding of the conical sand maker breaking wall. The casting mold is characterized in that the height of a breaking wall forming mold cavity in the sand box is smaller than the height of a casting riser or the volume of the forming mold cavity is smaller than the volume of the casting riser. The casting process comprises the following steps: casting high chromium cast iron into the breaking wall forming mold cavity and the casting riser, then suspending the sand box on a high-frequency vibration platform for high-frequency vibration, and cooling to obtain the high chromium cast iron breaking wall with a high density. The casting mold and the casting process have the advantages that firstly, the wear resistance of the high chromium cast iron breaking wall is effectively improved, and the sand making cost is greatly reduced; secondly, the feeding effect is good, the cast is high in density, and the occurrence of damage phenomenon is avoided; and thirdly, the wear resistance, the shock resistance and the service life are increased by nearly 5 times, and unexpected technical effects are achieved.

Description

technical field [0001] The invention relates to a pouring mold for the crushing wall of a cone sand making machine and a casting process that can obtain no shrinkage cavity and effectively increase the density of castings during the casting feeding process of the crushing wall of the cone sand making machine, belonging to the field of casting . Background technique [0002] CN102380579A, titled "a casting method for crushing walls or rolling mortar walls", including the following steps: 1) Preparing metal molds: designing the inner and outer metal mold shapes according to the shape of the casting, leaving sand-covered and machining allowances during the design, and using ordinary carbon Plain steel molding, molding by machining; 2) Preparation of sand covering: sand covering is composed of the following raw materials in parts by weight, 80-90 parts of standard sand, 3-5 parts of montmorillonite, 2-3 parts of attapulgite 1-2 parts of iron oxide, 3-5 parts of water, just mix ...

Claims

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Application Information

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IPC IPC(8): B22C9/02B22C9/08B22D27/08
Inventor 胡祖尧
Owner ZHEJIANG SHUANGJIN MACHINERY HLDG
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