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A mold for producing a special alloy slab in a vacuum induction melting furnace and its application method

A technology of vacuum induction melting and mould, which is applied in the field of mold and its use in the production of special alloy slabs in vacuum induction melting furnaces. The effect of temperature field, reducing the temperature difference between the edge and the core, and reducing the cost

Active Publication Date: 2022-05-27
INST OF RES OF IRON & STEEL JIANGSU PROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent 208712810U discloses a casting slab device for alloy smelting. Although the device can suppress the cracking of the slab and make the alloy structure more uniform and free of pores, the slab does not meet the size requirements for direct rolling, and it still needs to continue forging or rolling It can only be realized after the billet is made, so this kind of method still has the disadvantages of low efficiency and high cost, and it is difficult to achieve the purpose of reducing the process, energy consumption and cost

Method used

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  • A mold for producing a special alloy slab in a vacuum induction melting furnace and its application method
  • A mold for producing a special alloy slab in a vacuum induction melting furnace and its application method
  • A mold for producing a special alloy slab in a vacuum induction melting furnace and its application method

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Effect test

Embodiment 1

[0036] In this embodiment, the casting system used should meet and meet the following characteristics: that is, a vertical casting pipe, through the bottom horizontal casting pipe, is connected with three or several branch pipes, and these branch pipes will introduce molten steel into the same Inside the slab mould. The height L3, width L2 and thickness L1 of the cavity size of the mold must have the following proportional relationship: L3=(1.5~1.8)L2=(10~15)L1; the radius of the casting pipe is R1, the radius of the horizontal casting pipe is R2, and the bottom branch pipe The radius R3 should have the following proportional relationship: R1: R2: R3 = 1: (0.69 ~ 0.74): (0.58 ~ 0.6); 2 times the distance between the inner wall of the mold; after the mold is assembled, the upper end of the bell mouth of the vertical casting pipe is 500-800mm higher than the upper end of the mold; the assembled mold is baked as a whole, and the temperature is kept at 450 ℃ to 550 ℃ for 2 to 3 ho...

Embodiment 2

[0039] In this embodiment, the casting system used should meet and meet the following characteristics: that is, a vertical casting pipe, through the bottom horizontal casting pipe, is connected with three or several branch pipes, and these branch pipes will introduce molten steel into the same Inside the slab mould. The height L3, width L2 and thickness L1 of the cavity size of the mold must have the following proportional relationship: L3=(1.5~1.8)L2=(10~15)L1; the radius of the casting pipe is R1, the radius of the horizontal casting pipe is R2, and the bottom branch pipe The radius R3 should have the following proportional relationship: R1: R2: R3 = 1: (0.69 ~ 0.74): (0.58 ~ 0.6); 2 times the distance between the inner wall of the mold; after the mold is assembled, the upper end of the bell mouth of the vertical casting pipe is 500-800mm higher than the upper end of the mold; the assembled mold is baked as a whole, and the temperature is kept at 450 ℃ to 550 ℃ for 2 to 3 ho...

Embodiment 3

[0042] In this embodiment, the casting system used should meet and meet the following characteristics: that is, a vertical casting pipe, through the bottom horizontal casting pipe, is connected with three or several branch pipes, and these branch pipes will introduce molten steel into the same Inside the slab mould. The height L3, width L2 and thickness L1 of the cavity size of the mold must have the following proportional relationship: L3=(1.5~1.8)L2=(10~15)L1; the radius of the casting pipe is R1, the radius of the horizontal casting pipe is R2, and the bottom branch pipe The radius R3 should have the following proportional relationship: R1: R2: R3 = 1: (0.69 ~ 0.74): (0.58 ~ 0.6); 2 times the distance between the inner wall of the mold; after the mold is assembled, the upper end of the bell mouth of the vertical casting pipe is 500-800mm higher than the upper end of the mold; the assembled mold is baked as a whole and kept at 450℃~550℃ for 2~3h.

[0043] In the example ope...

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Abstract

The present application discloses a mold for producing a special alloy slab in a vacuum induction melting furnace, which is characterized in that it includes a mold base, a hollow flat inner cavity mold installed on the mold base, and a longitudinal casting tube. The lower extension communicates with the horizontal casting pipe arranged on the mold base, and the horizontal casting pipe communicates with the bottom of the inner cavity of the mold through a branch pipe. The invention provides a mold suitable for casting slabs in a vacuum induction melting furnace. By adopting the design of three bottom branch pipes to cast a mold cavity at the same time, the internal temperature field of the slab during casting is effectively improved, and the slab is greatly reduced. The temperature difference between the edge and the center on the equal height section of the slab can be used to cast a qualified slab.

Description

technical field [0001] The application relates to a mold for producing special alloy slabs in a vacuum induction melting furnace and a method of using the same. Background technique [0002] At present, many manufacturers cast special alloy slabs in the smelting process of special plate production, and then carry out subsequent forging and rolling. In fact, the flat ingot does not meet the size requirements of direct rolling, and it still needs to be forged and billeted. Therefore, it is difficult to achieve the purpose of reducing processes, energy consumption and cost by such methods. For some special alloy products, if qualified special alloy slabs can be directly cast in the smelting process, they can be directly rolled into finished special alloy plates without forging and blanking. In order to achieve the purpose of reducing the process, reducing energy consumption and cost. [0003] Patent 208712810U discloses an alloy smelting and pouring flat ingot device, includi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D7/06
CPCB22D7/06
Inventor 成建强胡显军顾晔
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE