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A kind of continuous casting and rolling process method of aluminum alloy and aluminum matrix composite material

An aluminum-based composite material, continuous casting and rolling technology, applied in the direction of metal rolling, can solve the problems of internal damage of the material, large grain size of the casting billet, long manufacturing cycle, etc., to improve the rolling stability, alloy composition and so on. The effect of uniform and uniform particle dispersion

Active Publication Date: 2022-01-18
ANHUI XIANGBANG COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of this process method are that the product manufacturing cycle is long, the grain size of the cast slab is large, the manufacturing cost of the ingot by spray deposition is high, and the internal damage of the material is often caused during the extrusion process, which affects the reliability of the product.
Although the gas content of the material can be effectively reduced by double-chamber casting, it cannot be achieved for alloys with higher requirements (H≤0.10ml / 100g) and to reduce the specific gravity segregation behavior of the alloy; by changing the roll structure and the surface finish of the steel strip, these methods It can improve the surface state and deformation stress of the slab, but it cannot fundamentally solve the key problems of the slab breaking when the slab is out of the ingot and the dummy ingot is being rolled.
In addition, the single-roll casting and rolling process also has many unresolved problems for the mass production of composite profiles.

Method used

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  • A kind of continuous casting and rolling process method of aluminum alloy and aluminum matrix composite material
  • A kind of continuous casting and rolling process method of aluminum alloy and aluminum matrix composite material
  • A kind of continuous casting and rolling process method of aluminum alloy and aluminum matrix composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] An aluminum-based composite material and a difficult-to-deform aluminum alloy continuous casting and rolling process, specifically for preparing 5wt.%TiB 2 / 6061 in-situ self-generated particle reinforced aluminum matrix composite continuous casting and rolling rod. The ingredients are shown in Table 1:

[0033] Table 1

[0034]

[0035] (1), 5wt.% TiB will be prepared 2 / 6061 The reaction composition of in-situ self-generated particle reinforced aluminum matrix composite material is calculated according to the mass fraction of 5%, then put into the vacuum holding furnace, heat up to 700-850°C, turn on the magnetic stirring device, keep warm for 15-30min, and then the aluminum liquid When the temperature drops to 680-760°C, add 6061 aluminum alloy for alloying, let it stand for 15-30 minutes, then heat up to the refining temperature, vacuumize the vacuum holding furnace 1 to 80-100Pa through the vacuuming device 14, and start the magnetic stirring device 16 for vac...

Embodiment 2

[0041] An aluminum-based composite material and a continuous casting and rolling process method for a difficult-to-deform aluminum alloy, specifically for preparing 8wt.%TiB 2 / A356 in-situ autogenous particle reinforced aluminum matrix composite continuous casting and rolling rod. The ingredients are shown in Table 2:

[0042] Table 2

[0043]

[0044]

[0045] (1), 8wt.% TiB will be prepared 2 / A356 The reaction composition of in-situ self-generated particle reinforced aluminum matrix composite material is calculated according to the mass fraction of 8%, then put into the vacuum holding furnace 1, heat up to 700-850°C, turn on the magnetic stirring device 16, keep it warm for 15-30min, and then When the temperature of the molten aluminum drops to 680-750°C, add A356 aluminum alloy for alloying, let it stand for 15-30min, then raise the temperature to the refining temperature, vacuumize the vacuum holding furnace 1 to 80-100Pa through the vacuuming device 14, and star...

Embodiment 3

[0051] An aluminum-based composite material and a process method for continuous casting and rolling of a difficult-to-deform aluminum alloy, specifically for preparing a 5356 aluminum alloy continuous casting and rolling rod. The composition is as follows in Table 3:

[0052] table 3

[0053]

[0054]

[0055] (1), the original aluminum ingots and alloys for the preparation of 5356 aluminum alloys are calculated according to the standard mass fraction, then put into the vacuum holding furnace 1, the temperature is raised to 710-760°C, the magnetic stirring device 16 is turned on, and the heat preservation is carried out for 15-30min, and then static After 10-15 minutes, heat up to the refining temperature, vacuumize the vacuum holding furnace 1 to 80-100 Pa through the vacuum device 14, start the magnetic stirring device 16 for vacuum refining, and control the frequency of the magnetic stirring device 2 at 2 Hz for refining for 10-20 min;

[0056] (2), inject argon gas ...

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Abstract

The invention discloses a process equipment and method for continuous casting and rolling of aluminum alloy and aluminum-based composite materials. A magnetic stirring device is used to degas and refine the aluminum melt under vacuum conditions, which greatly reduces the hydrogen content of the alloy liquid. Through the precise control of the mixing ratio of the parent melt and the auxiliary melt, the technical barriers to the breakage of dummy ingots of difficult-to-deform alloys and aluminum-based composite materials and the breakage of the blooming billet are solved. The invention can achieve the hydrogen content of aluminum alloy ≤ 0.10ml / 100g through the vacuum degassing process, and the continuous magnetic stirring technology fundamentally solves the problem that the particle reinforced aluminum matrix composite cannot be continuously casted by the Propez process due to the settlement of the reinforcement The technical difficulties of continuous rolling rod manufacturing have opened up a new way for the manufacture of hard-to-deform aluminum alloys and aluminum-based composite rods and wires.

Description

technical field [0001] The invention relates to the technical field of continuous casting and rolling of aluminum alloys and aluminum-based composite materials, in particular to a process method of continuous casting and rolling of aluminum alloys and aluminum-based composite materials. Background technique [0002] Aluminum matrix composite rods have many advantages such as high specific strength, specific modulus, and good fatigue performance, and have broad application prospects in aerospace, rail transit, automobile manufacturing, and electronic communications. The traditional aluminum matrix composite rods are manufactured by stirring casting, powder metallurgy or spray deposition to form billets, and the rods are formed by extrusion to manufacture high-performance connectors and their welding wires. The problems of this process method are that the product manufacturing cycle is long, the grain size of the billet is large, the manufacturing cost of the billet by spray d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/113B22D11/115B22D11/117B21B1/46B21B3/00
CPCB22D11/113B22D11/115B22D11/117B21B1/46B22D11/003B21B3/00B21B2003/001
Inventor 蒲保东王建忠王磊王鹏举陈东马乃恒
Owner ANHUI XIANGBANG COMPOSITE MATERIAL