Air cooling ingot mold and pouring technology thereof

A steel ingot mold and air-cooling technology is applied in the field of air-cooling process design of steel ingots for die-casting production. , Reduce the effect of low magnification segregation

Active Publication Date: 2018-02-16
HENAN ZHONGYUAN SPECIAL STEEL EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most domestic steel ingots are produced by natural cooling, but with the continuous improvement of product quality requirements, the crystallization structure of steel ingots obtained by natural cooling can no longer meet the needs of subsequent production. Human intervention in the natural p

Method used

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  • Air cooling ingot mold and pouring technology thereof
  • Air cooling ingot mold and pouring technology thereof
  • Air cooling ingot mold and pouring technology thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1: as figure 1 , 2 As shown, the present invention discloses an air-cooled steel ingot mold. Air guide holes 1 are opened and processed in the mold wall of the original steel ingot mold, and vent holes 2 are opened and processed on the outside of the steel ingot mold. Each vent hole 2 corresponds to a The air guide hole 1 is provided with an air guide groove 3 at the bottom of the original steel ingot mold. The air-introducing hole 4 communicated with the air-guiding groove 3, the air-introducing hole 4 is connected with the compressed air device through the connection device 7, so as to realize the influence of the compressed air on the crystallization process of the steel ingot.

[0028] The present invention is designed and modified on the basis of the existing steel ingot mould, that is, to drill ≥Ф40mm ventilation holes at 1 / 2 wall thickness of the ingot mold, the ventilation holes are evenly distributed along the circumference, and the hole spacing is ...

Embodiment 2

[0037] Embodiment 2: as image 3 As shown, an air-cooled steel ingot mold is directly embedded in the mold wall of the steel ingot mold when the steel ingot mold is cast. The device is connected with the compressed air device, and the compressed air directly intervenes in the crystallization process of the steel ingot through the air hole. When casting the ingot mold, a line pipe with a diameter of ≥Ф40mm is embedded in the casting sand mold in advance. After the ingot mold is cast, a through hole with a diameter of ≥Ф40mm is spirally distributed in the wall thickness of the ingot mold from bottom to top. For details, see image 3 .

[0038] The air guide pipe embedded in the mold wall of the steel ingot mold is a spiral air guide pipe. The spiral air duct is a helical tube with a diameter of ≥Ф40mm embedded in the casting sand mold in advance. The two ports of the helical tube are air-introduction holes and exhaust holes respectively. After the steel ingot mold is cast, 1 / 2...

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Abstract

The invention relates to an air cooling ingot mold and a pouring technology thereof. With the air cooling ingot mold and the pouring technology thereof, the time for steel ingot crystallization can beshortened, the production efficiency is improved, the inside crystalline structure of a steel ingot can be improved, and pouring is carried out while low power segregation, especially banded structure segregation, is reduced. Air guiding holes are formed in the mold wall of an original ingot mold, exhaust holes are formed in the outer side of the original ingot mold in a machining manner, each exhaust hole corresponds to one air guiding hole, an air guiding groove is formed in the bottom of the original steel ingot, the air guiding groove in the bottom of the original ingot mold communicateswith the air guiding holes in the mold wall of the ingot mold, air introducing holes communicating with the air guiding groove is formed in the side face of the bottom of the ingot mold in a machiningmanner, and the air introducing holes communicate with a compressed air device through a connection device. Influence cause by compressed air on the crystallization process of steel ingots is realized, the problem that the ingredient and structure segregation defects which are caused in the natural crystallization process and cannot be overcome in the process of subsequent machining is solved thoroughly, and the purposes of improving the production efficiency of mold casting and improving the crystalline structures are achieved.

Description

technical field [0001] The invention belongs to the technical field of air-cooling process design of steel ingots for die casting production, and relates to a method that can not only shorten the crystallization time of steel ingots and improve production efficiency, but also can improve the internal crystallization structure of steel ingots and reduce low-magnification segregation, especially band structure segregation. Cast air-cooled steel ingot mold and its pouring process. Background technique [0002] At present, most domestic steel ingots are produced by natural cooling, but with the continuous improvement of product quality requirements, the crystallization structure of steel ingots obtained by natural cooling can no longer meet the needs of subsequent production. Human intervention in the natural process is the development trend of the entire industry . The same industry has developed and tested a water-cooled steel ingot production device, but due to high-temperat...

Claims

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Application Information

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IPC IPC(8): B22D7/06B22D27/04
Inventor 薛正国高英丽刘新平吴勇
Owner HENAN ZHONGYUAN SPECIAL STEEL EQUIP MFG CO LTD
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