Electromagnetic semicontinuous casting method of aluminium alloy pipe material and its casting device

An aluminum alloy and semi-continuous casting technology is applied in the field of aluminum alloy pipe casting to achieve the effects of uniform structure, uniform circumferential temperature and wide adjustment range of magnetic field.

Inactive Publication Date: 2006-01-11
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the shortcomings of the existing aluminum alloy pipe casting technology, the present i...

Method used

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  • Electromagnetic semicontinuous casting method of aluminium alloy pipe material and its casting device
  • Electromagnetic semicontinuous casting method of aluminium alloy pipe material and its casting device
  • Electromagnetic semicontinuous casting method of aluminium alloy pipe material and its casting device

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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the aluminum alloy pipe electromagnetic semi-continuous casting casting device of the present invention includes: 1 bracket, 2 rain-type launders, 3 inner hot tops, 4 glands, 5 outer mold jackets, 6 dummy bases, 7 nuts, 8 inner crystallizer inlet water pipe, 9 inner mold upper cover, 10 inner mold body, 11 outer heat top, 12 outer mold inlet water pipe, 13 outer coil, 14 outer mold inner sleeve, 15 stone grinding ring, 16 aluminum Alloy cast pipe, 17 inner coils. After the outer mold inner sleeve 14 and the outer mold outer sleeve 5 are combined, they are fixed with a gland 4 to form an outer mold water cooling chamber, and the outer coil 13 is placed in the outer mold water cooling chamber; the outer mold inner sleeve 14 is embedded with an outer The hot top 11, the stone grinding ring 15; the inner crystallizer body 10 and the inner mold upper cover 9 are combined to form the inner mold water-cooling chamber, and the inner coil 17 is placed...

Embodiment 2

[0032] Different phase power frequency electromagnetic continuous casting

[0033] Ingot size: φ290mm×35mm, stainless steel dummy base

[0034] Magnetic field conditions: inner coil: ampere-turns 14400AT; outer coil: ampere-turns 6000AT; frequency 50Hz; outer coil current

[0035] 50° phase lag behind the inner coil

[0036] Process parameters: the casting temperature is 750°C, and the casting speed is 140mm / min.

[0037] casting method

Embodiment 3

[0039] Low Frequency Electromagnetic Continuous Casting

[0040] Ingot size: φ290mm×35mm, stainless steel dummy base

[0041] Magnetic field conditions: inner coil: ampere-turns 12000AT; outer coil: ampere-turns 5000AT; frequency 30Hz; outer coil current

[0042] Phase lag of inner coil 0°

[0043] Process parameters: casting temperature 750°C, casting speed 140mm / min.

[0044] casting method

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Abstract

An electromagnetic semi-conticasting method for casting Al-alloy tube features that its casting temp is 710-770 deg.C, its casting speed is 60-180 mm/min, its electromagnetic field is 10000-20000 ampere-turn and 1-100 Hz for internal coil and 2000-8000 ampere-turn and 1-100 Hz for external coil, and the phase difference between said two coils is 0-359 deg., Its apparatus is composed of semi-conticaster, internal and external crystallizers, two water-cooled coils, etc.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy pipe casting, and in particular relates to an electromagnetic semi-continuous casting method and a casting device for aluminum alloy pipes. Background technique [0002] High-performance aluminum alloy pipes are widely used in various industries such as electric power and construction. There are two main production methods: [0003] 1. Casting into a billet, and then rolling or extruding into a pipe, but this has many processes and low metal utilization; [0004] 2. First cast into a hollow tube billet, and apply a small amount of deformation to make a tube, and the metal utilization rate is high. The casting of ordinary aluminum alloy hollow tubes includes: sand casting, centrifugal casting and semi-continuous casting. [0005] Sand casting: less investment, strong adaptability, can produce products of various shapes and specifications. However, the production efficiency is low and the ...

Claims

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Application Information

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IPC IPC(8): B22D11/14
Inventor 崔建忠王哲峰赵志浩
Owner NORTHEASTERN UNIV
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