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Mold for producing special alloy plate blank by vacuum induction melting furnace and using method of mold

A vacuum induction melting and mold technology is applied to molds for producing special alloy slabs in vacuum induction melting furnaces and their application fields. The effect of reducing the temperature difference between the edge and the core, and improving the efficiency

Active Publication Date: 2021-02-26
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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  • Mold for producing special alloy plate blank by vacuum induction melting furnace and using method of mold
  • Mold for producing special alloy plate blank by vacuum induction melting furnace and using method of mold
  • Mold for producing special alloy plate blank by vacuum induction melting furnace and using method of mold

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Experimental program
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Effect test

Embodiment 1

[0036] In this embodiment, the casting system used should meet and meet the following characteristics: namely, a longitudinal cast pipe passes through the bottom horizontal cast pipe, and then connects with three or several branch pipes, and these branch pipes will lead molten steel into the same Inside the slab mold. The height L3, width L2 and thickness L1 of the cavity size of the mold need to have the following proportional relationship: L3=(1.5~1.8)L2=(10~15)L1; cast pipe radius R1, horizontal cast pipe radius R2, bottom branch pipe The radius R3 should have the following proportional relationship: R1: R2: R3 = 1: (0.69~0.74): (0.58~0.6); the distance between the bottom branch pipe at the edge position and the bottom branch pipe at the center position is the distance from the bottom branch pipe at the edge position to Twice the distance of the inner wall of the mold; after the mold is assembled, the upper end of the bell mouth of the longitudinal casting pipe is 500-800mm...

Embodiment 2

[0039] In this embodiment, the casting system used should meet and meet the following characteristics: namely, a longitudinal cast pipe passes through the bottom horizontal cast pipe, and then connects with three or several branch pipes, and these branch pipes will lead molten steel into the same Inside the slab mold. The height L3, width L2 and thickness L1 of the cavity size of the mold need to have the following proportional relationship: L3=(1.5~1.8)L2=(10~15)L1; cast pipe radius R1, horizontal cast pipe radius R2, bottom branch pipe The radius R3 should have the following proportional relationship: R1: R2: R3 = 1: (0.69~0.74): (0.58~0.6); the distance between the bottom branch pipe at the edge position and the bottom branch pipe at the center position is the distance from the bottom branch pipe at the edge position to Twice the distance of the inner wall of the mold; after the mold is assembled, the upper end of the bell mouth of the longitudinal casting pipe is 500-800mm...

Embodiment 3

[0042] In this embodiment, the casting system used should meet and meet the following characteristics: namely, a longitudinal cast pipe passes through the bottom horizontal cast pipe, and then connects with three or several branch pipes, and these branch pipes will lead molten steel into the same Inside the slab mold. The height L3, width L2 and thickness L1 of the cavity size of the mold need to have the following proportional relationship: L3=(1.5~1.8)L2=(10~15)L1; cast pipe radius R1, horizontal cast pipe radius R2, bottom branch pipe The radius R3 should have the following proportional relationship: R1: R2: R3 = 1: (0.69~0.74): (0.58~0.6); the distance between the bottom branch pipe at the edge position and the bottom branch pipe at the center position is the distance from the bottom branch pipe at the edge position to Twice the distance of the inner wall of the mold; after the mold is assembled, the upper end of the bell mouth of the longitudinal casting pipe is 500-800mm...

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Abstract

The application discloses a mold for producing a special alloy plate blank by a vacuum induction melting furnace. The mold is characterized by comprising a mold base, a hollow flat inner cavity mold body arranged on the mold base and a longitudinal casting pipe, the longitudinal casting pipe extends downwards to communicate with a transverse casting pipe arranged on the mold base, and the transverse casting pipe communicates with the bottom of a mold inner cavity through branch pipes. According to the mold suitable for casting the plate blank by the vacuum induction melting furnace, through the design that casting of one mold inner cavity is conducted by adopting the three bottom branch pipes at the same time, an internal temperature field of the plate blank during casting is effectively improved, the temperature difference between the edge and the center of the equal-height section of the plate blank is greatly reduced, and therefore the qualified plate blank can be cast.

Description

technical field [0001] The application relates to a mold for producing special alloy slabs in a vacuum induction melting furnace and a method for 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 slab does not meet the size requirements of direct rolling, and it still needs to be forged and opened before it can be realized. Therefore, this method is difficult to achieve the purpose of reducing the process, energy consumption and cost. 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 slabs without forging. So as to achieve the purpose of reducing process, energy consumption and cost. [0003] Patent 208712810U discloses a casting flat ingot device for alloy smelting, which includes a funnel ...

Claims

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Application Information

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Patent Type & Authority Applications(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