Fine crystal and single crystal dual-function casting furnace, single crystal casting method and fine crystal casting method

A casting furnace, dual-function technology, applied in the direction of single crystal growth, chemical instruments and methods, crystal growth, etc., can solve the problem that the casting furnace cannot have the function of the single crystal furnace and the fine crystal furnace at the same time.

Active Publication Date: 2018-11-16
赵京晨 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned analysis, the present invention provides a fine-grain and single-crystal dual-function casting furnace designed and manufactured by asynchronous bending supercooling technology and its use is different from ordinary single-crystal furnaces and ordinary fine-grain furnaces. The method of use solves the problem that the casting furnace in the prior art cannot have the functions of single crystal furnace and fine crystal furnace at the same time, and also improves the quality of the produced single crystal and fine crystal, so that they respectively reach the extreme quality in their respective fields ideal level

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  • Fine crystal and single crystal dual-function casting furnace, single crystal casting method and fine crystal casting method
  • Fine crystal and single crystal dual-function casting furnace, single crystal casting method and fine crystal casting method

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Embodiment 1

[0040] This embodiment provides a fine-grain, single-crystal double-function casting furnace, including a casting chamber and a drop-down water-cooled crystallizer (not shown) positioned at the bottom of the casting chamber; The ordinary single crystal furnace is the same, but its casting chamber structure and operation mechanism are completely unique, its structure is as follows Figure 1 to Figure 2 As shown, the casting chamber includes a first energized coil 2 and a second energized coil 3, the first energized coil 2 and the second energized coil 3 internal spaces constitute a static magnetic field application zone, and the static magnetic field application zone is also a temperature heating zone; the first The energization coil 2 and the second energization coil 3 are located in the load-bearing groove 4 respectively, and the first energization coil 2 is positioned above the second energization coil 3; Static magnetic field strength, the temperature inside the second ener...

Embodiment 2

[0064] This embodiment provides a fine-grain casting method. The fine-grain single-crystal dual-function casting furnace provided in Embodiment 1 is used. The fine-grain casting method includes the following steps:

[0065] Step 1: Place the mold in the area where the static magnetic field is applied, on the pull-down water-cooled crystallizer, and place the heat insulation layer between the mold and the pull-down water-cooled crystallizer;

[0066] Step 2: Put the master alloy in the melting crucible and add the required deoxidized carbon, and then check whether the temperature measuring device and the peephole are normal and available;

[0067] Step 3: Close the furnace door and vacuumize, the vacuum degree is ≤5Pa, the first energized coil and the second energized coil are energized, and the energized power is 100KW, so that the mold temperature is 1400°C, and the internal static magnetic field strength of the first energized coil reaches 2T. The static magnetic field stren...

Embodiment 3

[0075] This embodiment provides a single crystal casting method, using the fine-grain and single crystal dual-function casting furnace provided in Embodiment 1, the single crystal casting method includes the following steps:

[0076] Step A: Place the single crystal mold in the area where the static magnetic field is applied, on the pull-down water-cooled crystallizer, and clean up the space between the single crystal mold and the upper plane of the crystallizer, and there must be no substances that hinder heat transfer;

[0077] Step B: Place the master alloy in the melting crucible and add the required deoxidized carbon, and then check whether the temperature measuring device and the peephole are normally available;

[0078] Step C: Close the furnace door and vacuumize. The vacuum degree is ≤5Pa, which can ensure that the tungsten alloy coil is not oxidized. The overheating temperature requirement of most single crystal alloys is that the internal static magnetic field stren...

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Abstract

The invention discloses a fine crystal and single crystal dual-function casting furnace, a single crystal casting method and a fine crystal casting method and belongs to the technical field of precisecasting devices. The fine crystal and single crystal dual-function casting furnace solves the problem that in the prior art, a casting furnace cannot have the single crystal furnace function and thefine crystal furnace function at the same time and improves the quality of produced single crystals and fine crystals. The fine crystal and single crystal dual-function casting furnace comprises a casting mould chamber and a downward-pull water-cooling crystallizer located on the lower side of the casting mould chamber. The casting mould chamber comprises first electrified coils and a second electrified coil. The spaces of the inner portions of the first electrified coils and the second electrified coil constitute a static magnetic field exertion area. The static magnetic field exertion area is also a temperature heating area. The first electrified coils are located above the second electrified coil. The static magnetic field intensity and the temperature in the second electrified coil arehigher than those in the first electrified coils. When the fine crystal and single crystal dual-function casting furnace is used for fine crystal casting, a fire-proof thermal insulating layer is arranged between the downward-pull water-cooling crystallizer and a casting mould. The fine crystal and single crystal dual-function casting furnace can be used for fine crystal casting and single crystal casting and can reach the ideal degrees in the respective fields.

Description

technical field [0001] The present invention relates to precision casting equipment, and relates to an unprecedented fine-grain and single-crystal dual-function casting furnace designed and manufactured by asynchronous bending supercooling technology and a single-crystal furnace which is different from ordinary single-crystal furnaces and ordinary fine-crystal furnaces in use. Crystal casting method and fine grain casting method. Background technique [0002] Single crystal furnace and fine crystal furnace are two important equipments in the foundry field. Single crystal furnace is used to produce single crystal castings, and fine crystal furnace is used to produce fine crystal castings. The grain structure of single-crystal castings is different from that of fine-grained castings. Among them, the grain structure of single-crystal castings has no grain boundaries, and the entire casting is one grain; the grain structure of fine-grained castings contains more grains. The bet...

Claims

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Application Information

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IPC IPC(8): B22D27/02B22D27/04C30B11/00
CPCB22D27/02B22D27/04C30B11/00
Inventor 赵京晨
Owner 赵京晨
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