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High-ductility soluble aluminum alloy, preparation method and application

A ductility, aluminum alloy technology, applied in the field of high ductility soluble aluminum alloy, can solve the problems of reduced ductility, strength, toughness and other mechanical properties, limited use range, prone to fracture and other problems, to reduce the number of ingots Segregation, improving mechanical properties, eliminating the effect of porosity

Pending Publication Date: 2022-07-01
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When traditional soluble aluminum alloys are used at certain temperatures or in underground environments with large loads, their mechanical properties such as ductility, strength, and toughness are reduced, their plasticity is poor, their deformation is small, and they are prone to fracture, which limits their scope of use.

Method used

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preparation example Construction

[0028] The preparation method of the high ductility soluble aluminum alloy of the present invention comprises the following steps:

[0029] Step 1), each element is weighed according to the weight percentage ratio of each component of the above-mentioned soluble aluminum alloy, Mg is introduced with Al-Mg master alloy, Ga is introduced with Al-Ga master alloy, and In is introduced with Al-In master alloy , Sn is introduced by Al-Sn master alloy, and insufficient Al is introduced by pure aluminum ingot;

[0030] Step 2), smelting and casting: first melt the pure aluminum, use SF6+CO2 gas protection during the melting process, after all the pure aluminum is melted, raise the melt temperature to 700-730°C, add the remaining components, and wait for all the melting After stirring, impurity and slag removal, the temperature of the melt is raised to 730-780°C, kept for 10-30 minutes, and then cooled to 700-720°C for casting.

[0031] In the smelting process, add impurity remover to...

Embodiment 1

[0039] High ductility soluble aluminum alloy, in terms of weight percentage, each element composition: Mg 1.5wt%, Ga 1wt%, In0.7wt%, Sn 1wt%, the balance is Al and inevitable impurity elements.

[0040] Its preparation method is as follows:

[0041] Step 1), weighing raw materials according to the above-mentioned proportions: weighing pure aluminum ingot, Al-Mg master alloy, Al-Ga master alloy, Al-In master alloy, and Al-Sn master alloy.

[0042] After weighing the raw material, sand the surface of the raw material to remove the surface oxide layer.

[0043] Step 2), smelting and casting: first place pure aluminum in a graphite crucible for heating and melting, and use SF6+CO2 gas protection during the melting process. After all the pure aluminum is melted, the melt temperature is raised to 700 ° C and other pure metals and intermediates are added. Alloy, stir after all melting, add impurity remover and slag remover respectively to remove impurities and slag, the addition amo...

Embodiment 2

[0052] High ductility soluble aluminum alloy, in terms of weight percentage, each element composition: Mg 1.5wt%, Ga 1wt%, In0.7wt%, Sn 1wt%, the balance is Al and inevitable impurity elements.

[0053] Its preparation method is as follows:

[0054] Step 1), weighing raw materials according to the above-mentioned proportions: weighing pure aluminum ingot, Al-Mg master alloy, Al-Ga master alloy, Al-In master alloy, and Al-Sn master alloy.

[0055] After weighing the raw material, sand the surface of the raw material to remove the surface oxide layer.

[0056] Step 2), smelting and casting: first place pure aluminum in a graphite crucible for heating and melting, and use SF6+CO2 gas protection during the melting process. After all the pure aluminum is melted, the melt temperature is raised to 730 ° C and other pure metals and intermediates are added. Alloy, stir after all melting, add impurity remover and slag remover respectively to remove impurities and slag, the addition amo...

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Abstract

The invention discloses a high-ductility soluble aluminum alloy as well as a preparation method and application thereof, and the aluminum alloy comprises the following elements in percentage by weight: 1.5 wt% of Mg, 1wt% of Ga, 0.7 wt% of In, 1wt% of Sn and the balance of Al and inevitable impurity elements. The soluble aluminum alloy is obtained by smelting and ingot casting of the components, homogenization treatment, hot extrusion treatment and aging treatment. The soluble aluminum alloy material can be used as a material of a fracturing tool for shale oil and gas exploitation. The soluble aluminum alloy prepared through the method has the advantages of high ductility, good toughness, high strength, solubility and controllable solubility.

Description

technical field [0001] The invention belongs to the technical field of alloy preparation, in particular to a high ductility soluble aluminum alloy, a preparation method and an application. Background technique [0002] my country's aluminum alloy is abundant in output, and has the characteristics of low density, high specific strength, excellent electrical conductivity, thermal conductivity and corrosion resistance. At the same time, it has good plasticity and can be processed into various profiles. Widely used in aviation, aerospace, automobile, machinery manufacturing, ships and other fields. [0003] 70% of my country's oil and gas reserves are low-permeability unconventional energy sources, of which shale gas and shale oil reserves are at the forefront of the world. Due to the relative difficulty in the exploitation of shale gas and shale oil, the development of these unconventional oil and gas resources currently requires hydraulic power. fracturing and other technologi...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C1/03C22C1/06C22F1/047C21D9/00E21B33/12E21B43/26
CPCC22C21/06C22C1/026C22C1/03C22F1/047C21D9/0075C22C1/06E21B43/26E21B33/12E21B2200/08
Inventor 马宁常柯朱建锋郭恒鹏冀时雨张科秦毅
Owner SHAANXI UNIV OF SCI & TECH
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