CN114752827B - Low-temperature soluble aluminum alloy and application thereof - Google Patents
Low-temperature soluble aluminum alloy and application thereof Download PDFInfo
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Abstract
The invention discloses a low-temperature soluble aluminum alloy and application thereof, wherein the aluminum alloy comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements; the tensile strength is 390-460 MPa, and the elongation is 12-20%. The soluble aluminum alloy is obtained by carrying out homogenization treatment, hot extrusion treatment, solution treatment and aging treatment on the components after smelting and casting. The soluble aluminum alloy material can be used as a material of a fracturing tool for shale oil and gas exploitation. The low-temperature soluble aluminum alloy prepared by the method has a low-temperature phase, can be used in a low-temperature environment, is soluble at low temperature and has controllable solubility.
Description
Technical Field
The invention belongs to the technical field of alloy preparation, and particularly relates to a low-temperature soluble aluminum alloy, a preparation method and application thereof.
Background
Through oil and gas exploration in recent years, unconventional oil and gas resources in China are very abundant, shale gas and shale oil reserves are in the front of the world, and due to the fact that exploitation of shale gas and shale oil is relatively difficult, the development of the unconventional oil and gas resources at present needs to depend on hydraulic fracturing and other technologies, wherein bridge plug research and development is one of the very important technologies in the multilayer multistage segmented fracturing technology. The tool manufactured by the dissolvable material can be automatically dissolved in the underground environment after the operation is completed, so that the working procedures of manual drilling, grinding and recycling are omitted, the engineering risk is reduced, and the construction efficiency is improved.
The expansion ring is a part for fixing an object through expansion and contraction movements. The expander has a simple structure and is easy to assemble and disassemble, so that the expander is widely used in mechanical parts in various industries.
The aluminum alloy in China has rich output, low density, high specific strength, excellent electrical conductivity, thermal conductivity and corrosion resistance, and good plasticity, can be processed into various profiles, and is widely applied to the fields of aviation, aerospace, automobiles, ships and the like. When the soluble aluminum alloy all-metal bridge plug expander is used in a low-temperature environment, the material dissolution speed is slow due to low temperature, the controllability is poor, the production efficiency is seriously affected, and even blocked metal needs to be manually removed, so that the production risk is increased. Meanwhile, when the soluble aluminum alloy material is used at low temperature, brittle failure easily occurs due to poor low temperature resistance, and the mechanical properties such as strength, plasticity, toughness and the like are rapidly reduced, so that the application range of the soluble aluminum alloy material is limited. Therefore, the reasonable design of the element proportion and the technological parameters of the low-temperature soluble aluminum alloy material is an important technical problem, solves the problem, is hopeful to promote the development of the low-temperature high-performance soluble aluminum alloy material and improves the technical level of unconventional energy exploitation of shale oil gas and the like in China.
Disclosure of Invention
The invention aims to provide a low-temperature soluble aluminum alloy, a preparation method and application. The low-temperature soluble aluminum alloy material can be prepared by means of casting, heat treatment, extrusion and the like, so that the material is degraded under the low-temperature environment in a controlled manner, and the material also has good mechanical properties and stable dissolution rate under the low-temperature environment.
In order to achieve the purpose, the invention adopts the technical scheme that the low-temperature soluble aluminum alloy comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements; the tensile strength of the low-temperature soluble aluminum alloy is 390-460 MPa, and the elongation is 12-20%; the preparation method comprises the following steps:
step 1), weighing the elements according to the weight percentage, wherein Mg is introduced into the alloy as an Al-Mg intermediate alloy, ga is introduced into the alloy as an Al-Ga intermediate alloy, in is introduced into the alloy as an Al-In intermediate alloy, sn is introduced into the alloy as an Al-Sn intermediate alloy, and less than Al is introduced into the alloy as a pure aluminum ingot;
step 2), smelting and casting: under the protection of argon, heating and melting a pure aluminum ingot, when the temperature of the molten liquid reaches 715-735 ℃, sequentially adding an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy, smelting at 720-760 ℃, and preserving heat for 40-60 min; refining for 20-30min, heating to 740-780 ℃, standing, preserving heat for 30-40min, and casting into semicontinuous ingot at 720-740 ℃;
step 3) homogenization treatment: homogenization treatment system: heating to 160-220 ℃ at 80-120 ℃/h, preserving heat for 0.5-1h, heating to 420-450 ℃ at 100-150 ℃/h, preserving heat for 4-9h, cooling to 150-180 ℃ with strong air, preserving heat for 0.5-1h, heating to 505-525 ℃ at 150-200 ℃/h, preserving heat for 10-12h, and cooling to room temperature;
step 4) hot extrusion treatment: hot extrusion is carried out on the cast ingot to prepare a bar;
and 5) performing aging treatment.
Preferably, in the step 2), a impurity removing agent is added for removing impurities during refining, wherein the impurity removing agent comprises sodium fluoride, sodium chloride and potassium chloride in a mass ratio of 1:1:1, a step of; the adding amount of the impurity removing agent is 2-3% of the total mass of the melt.
Preferably, in the step 2), during refining, a slag removing agent is added to remove slag, wherein the slag removing agent is aluminum titanium boron wires, the aluminum titanium boron wires comprise, by mass, 4.5-5.5% of Ti, 0.8-1.0% of B and the balance Al, and the impurities are as follows: si <0.20%, fe <0.30%, V <0.25%, other elements <0.03%, and total impurity element content <0.10%; the addition amount of the slag forming agent is 2-3% of the total mass of the melt.
Preferably, in the melting process of the step 2), a refiner is added to refine grains, wherein the refiner comprises 0.35-0.45% of Cu-P intermediate alloy and 0.55-0.65% of Al-Ti-B intermediate alloy in percentage by weight; the addition amount of the refiner is 1% of the total mass of the melt.
Preferably, in step 4), the extrusion temperature is 440 ℃, the extrusion ratio is 15-20, and then the extruded material is subjected to solution treatment: firstly, preserving heat for 1-2h at 440 ℃, then preserving heat for 1-2h at 500 ℃, and then placing in 10% NaCl brine at 15-25 ℃ for quenching, so that the temperature of the obtained aluminum alloy material is reduced to below 50 ℃.
Preferably, in step 5), the ageing treatment regime: heat preservation is carried out for 6-10h at 100-150 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 10-15h at 50-60 ℃, air cooling is carried out to room temperature, heat preservation is carried out for 10-12h at 80-100 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 10-14h at 60-80 ℃, and air cooling is carried out to room temperature.
The invention also provides application of the low-temperature soluble aluminum alloy in preparing fracturing tools for shale oil and gas exploitation.
Compared with the traditional soluble aluminum alloy, the soluble aluminum alloy prepared by the invention has the following beneficial effects:
(1) According to the low-temperature soluble aluminum alloy, the grain size of the ingot can be thinned by adding the elements Ga, in and Sn, the segregation of the ingot is reduced, and the thinning of the ingot structure and the stability of the dissolution property are ensured to a certain extent. Meanwhile, a refiner is added to further refine the grain size of the cast ingot.
(2) The low-temperature soluble aluminum alloy disclosed by the disclosure is prepared by a fusion casting method, and compared with a powder metallurgy method, the low-temperature soluble aluminum alloy eliminates the internal pores of a material, thereby obviously improving the mechanical property of the material.
(3) The soluble aluminum alloy has low-temperature phase, good low-temperature resistance and no brittle failure in the low-temperature deformation process.
(4) The low-temperature soluble aluminum alloy prepared by the invention has the tensile strength of 390-460 MPa, the elongation of 12-20 percent and good dissolution rate in a low-temperature environment of 50 ℃.
Detailed Description
The reagents or materials used in the present invention are all commercially available, and unless otherwise specified, they are used in a manner conventional in the art or according to the product specifications.
The low-temperature soluble aluminum alloy adopted by the invention comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements; the tensile strength of the low-temperature soluble aluminum alloy is 390-460 MPa, and the elongation is 12-20%; the preparation method comprises the following steps:
step 1), weighing the elements according to the weight percentage, wherein Mg is introduced into the alloy as an Al-Mg intermediate alloy, ga is introduced into the alloy as an Al-Ga intermediate alloy, in is introduced into the alloy as an Al-In intermediate alloy, sn is introduced into the alloy as an Al-Sn intermediate alloy, and less than Al is introduced into a pure aluminum ingot;
step 2), smelting and casting: under the protection of argon, heating and melting a pure aluminum ingot, when the temperature of the molten solution reaches 715-735 ℃, sequentially adding an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy, smelting at 720-760 ℃, preserving heat for 40-60min, and stirring for 5-10min; refining for 20-30min, heating to 740-780 ℃, standing, preserving heat for 30-40min, and casting into semicontinuous ingot at 720-740 ℃;
adding a impurity removing agent during refining, wherein the impurity removing agent comprises sodium fluoride, sodium chloride and potassium chloride in a mass ratio of 1:1:1, a step of; the adding amount of the impurity removing agent is 2-3% of the total mass of the melt.
After the impurity removing agent and the melt are fully and uniformly mixed, adding a slag removing agent to remove slag, wherein the slag removing agent is aluminum titanium boron wires, the components of the aluminum titanium boron wires are, by mass percent, 4.5-5.5% of Ti, 0.8-1.0% of B and the balance of Al, and the impurities are as follows: si <0.20%, fe <0.30%, V <0.25%, other elements <0.03%, and total impurity element content <0.10%; the addition amount of the slag forming agent is 2-3% of the total mass of the melt.
During the melting process, a refiner is added to refine grains, wherein the refiner comprises the components of Cu-P intermediate alloy and Al-Ti-B intermediate alloy, and the mixture ratio of the refiner is 0.35-0.45% of the Cu-P intermediate alloy and 0.55-0.65% of the Al-Ti-B intermediate alloy in percentage by weight; the addition amount of the refiner is 1% of the total mass of the melt.
Step 3) homogenization treatment: homogenization treatment system: heating to 160-220 ℃ at 80-120 ℃/h, preserving heat for 0.5-1h, heating to 420-450 ℃ at 100-150 ℃/h, preserving heat for 4-9h, cooling to 150-180 ℃ with strong air, preserving heat for 0.5-1h, heating to 505-525 ℃ at 150-200 ℃/h, preserving heat for 10-14h, and cooling to room temperature;
step 4) hot extrusion treatment: hot extrusion is carried out on the cast ingot to prepare a bar; the extrusion temperature is 440 ℃, the extrusion ratio is 15-20, and then the extruded material is subjected to solution treatment: firstly, preserving heat for 1-2h at 440 ℃, then preserving heat for 1-2h at 500 ℃, and then placing in 10% NaCl brine at 15-25 ℃ for quenching, so that the temperature of the obtained aluminum alloy material is reduced to below 50 ℃.
Step 5) aging treatment: aging treatment system: heat preservation is carried out for 6-10h at 100-150 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 10-15h at 50-60 ℃, air cooling is carried out to room temperature, heat preservation is carried out for 10-12h at 80-100 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 10-14h at 60-80 ℃, and air cooling is carried out to room temperature.
The following describes the preferred embodiments in detail.
Example 1
The low-temperature soluble aluminum alloy comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements.
The preparation method comprises the following steps:
step 1), weighing the raw materials according to the proportion: weighing a pure aluminum ingot, an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy.
And (3) after the raw materials are weighed, polishing the surface of the raw materials by sand, and removing the surface oxide layer.
Step 2), smelting and casting: under the protection of argon, firstly placing pure aluminum In a melting furnace for heating and melting, when the temperature of a melt rises to 715 ℃, sequentially adding an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy, continuously heating to 720 ℃, smelting, preserving heat for 40min, and stirring for 5min; adding a impurity removing agent and a slag removing agent, removing impurities, refining for 20min, heating to 740 ℃, standing, preserving heat for 30min, and casting into a semicontinuous ingot at 720 ℃;
the addition amount of the impurity removing agent and the slag removing agent is 2% of the total mass of the melt respectively;
in the smelting process, 1% of refiner of the total mass of the molten liquid is added to refine grains;
impurity removing agent: sodium fluoride, sodium chloride and potassium chloride in the mass ratio of 1:1:1. Deslagging agent: aluminum titanium boron wire, 4.5% of Ti, 1.0% of B and the balance of Al. And (3) a refiner: the total mass percent of the melt is 0.35 percent of Cu-P intermediate alloy and 0.65 percent of Al-Ti-B intermediate alloy.
Step 3), homogenization treatment: homogenization treatment system: heating to 160 ℃ at 80 ℃/h, preserving heat for 1h, heating to 420 ℃ at 100 ℃/h, preserving heat for 5h, cooling to 150 ℃ by strong wind, preserving heat for 1h, heating to 505 ℃ at 150 ℃/h, preserving heat for 12h, and cooling to room temperature by air.
Step 4), hot extrusion treatment: the extrusion temperature is 440 ℃, and the extrusion ratio is 16:1; the extruded material is then solution treated: firstly, preserving heat at 440 ℃ for 1h, then preserving heat at 500 ℃ for 1h, and then placing in 10% NaCl brine at 15-25 ℃ for quenching, so that the obtained aluminum alloy material is cooled to below 50 ℃.
Step 5) aging treatment: aging treatment system: heat preservation is carried out for 8 hours at 150 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 15 hours at 60 ℃, air cooling is carried out to room temperature, heat preservation is carried out for 10 hours at 100 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 12 hours at 80 ℃, and air cooling is carried out to room temperature.
The low temperature soluble aluminum alloy obtained by the above procedure was tested with a room temperature tensile strength of 420MPa and an elongation of 15.1% and a corrosion rate in a 3% KCl solution of about 6.13mm/h in a low temperature environment at 50 ℃.
Example 2
The low-temperature soluble aluminum alloy comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements.
The preparation method comprises the following steps:
step 1), weighing the raw materials according to the proportion: weighing a pure aluminum ingot, an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy.
And (3) after the raw materials are weighed, polishing the surface of the raw materials by sand, and removing the surface oxide layer.
Step 2), smelting and casting: under the protection of argon, firstly placing pure aluminum In a melting furnace for heating and melting, adding Al-Mg intermediate alloy, al-Ga intermediate alloy, al-In intermediate alloy and Al-Sn intermediate alloy In sequence when the temperature of the melt rises to 725 ℃, continuously heating to 740 ℃ for smelting, preserving heat for 50min, and stirring for 7.5min; adding a impurity removing agent and a slag removing agent, removing impurities, refining for 25min, heating to 760 ℃, standing, preserving heat for 35min, and pouring into a semicontinuous ingot at 730 ℃;
the addition amount of the impurity removing agent and the slag removing agent is 3% of the total mass of the melt;
in the smelting process, 1% of refiner of the total mass of the molten liquid is added to refine grains;
impurity removing agent: sodium fluoride, sodium chloride and potassium chloride in the mass ratio of 1:1:1. Deslagging agent: aluminum titanium boron wire, 5% of Ti, 0.9% of B and the balance of Al. And (3) a refiner: the total mass percentage of the melt is 0.45% of Cu-P intermediate alloy and 0.55% of Al-Ti-B intermediate alloy.
Step 3), homogenization treatment: homogenization treatment system: heating to 190 ℃ at 100 ℃/h, preserving heat for 1h, heating to 435 ℃ at 125 ℃/h, preserving heat for 6.5h, cooling to 165 ℃ by strong wind, preserving heat for 1h, heating to 515 ℃ at 175 ℃/h, preserving heat for 14h, and cooling to room temperature by air.
Step 4), hot extrusion treatment: the extrusion temperature was 440 ℃, the extrusion ratio was 20:1, and then the extruded material was solution treated: firstly, preserving heat for 1.5h at 440 ℃, then preserving heat for 0.75h at 500 ℃, and then placing in 10% NaCl brine at 15-25 ℃ for quenching, so that the temperature of the obtained aluminum alloy material is reduced to below 50 ℃.
Step 5) aging treatment: aging treatment system: heat preservation is carried out for 10h at 125 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 13.5h at 45 ℃, air cooling is carried out to room temperature, heat preservation is carried out for 11.5h at 90 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 14h at 75 ℃, and air cooling is carried out to room temperature.
The low temperature soluble aluminum alloy obtained by the above procedure was tested with a tensile strength at room temperature of 455MPa and an elongation of 19.2% and a corrosion rate in a 3% KCl solution of about 6.4mm/h in a low temperature environment at 50 ℃.
Example 3
The low-temperature soluble aluminum alloy comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements.
The preparation method comprises the following steps:
step 1), weighing the raw materials according to the proportion: weighing a pure aluminum ingot, an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy.
And (3) after the raw materials are weighed, polishing the surface of the raw materials by sand, and removing the surface oxide layer.
Step 2), smelting and casting: under the protection of argon, firstly placing pure aluminum In a melting furnace for heating and melting, sequentially adding an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy when the temperature of the melt rises to 735 ℃, continuously heating to 760 ℃ for smelting, preserving heat for 60min, and stirring for 10min; adding a impurity removing agent and a slag removing agent, removing impurities, refining for 30min, heating to 780 ℃, standing, preserving heat for 40min, and pouring into a semicontinuous ingot at 740 ℃;
the addition amount of the impurity removing agent and the slag removing agent is 2% of the total mass of the melt respectively;
in the smelting process, 1% of refiner of the total mass of the molten liquid is added to refine grains;
impurity removing agent: sodium fluoride, sodium chloride and potassium chloride in the mass ratio of 1:1:1. Deslagging agent: aluminum titanium boron wire, 4.5% of Ti, 1.0% of B and the balance of Al. And (3) a refiner: the total mass percent of the melt is 0.35 percent of Cu-P intermediate alloy and 0.65 percent of Al-Ti-B intermediate alloy.
Step 3), homogenization treatment: homogenization treatment system: heating to 220 ℃ at 120 ℃/h, preserving heat for 1h, heating to 450 ℃ at 150 ℃/h, preserving heat for 9h, cooling to 180 ℃ by strong wind, preserving heat for 1h, heating to 525 ℃ at 200 ℃/h, preserving heat for 14h, and cooling to room temperature by air.
Step 4), hot extrusion treatment: the extrusion temperature was 440℃and the extrusion ratio was 20:1, then subjecting the extruded material to solution treatment: firstly, preserving heat for 2 hours at 440 ℃, then preserving heat for 1 hour at 500 ℃, and then placing in 10% NaCl brine at 15-25 ℃ for quenching, so that the obtained aluminum alloy material is cooled to below 50 ℃.
Step 5) aging treatment: aging treatment system: heat preservation is carried out for 10 hours at 150 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 15 hours at 55 ℃, air cooling is carried out to room temperature, heat preservation is carried out for 11 hours at 100 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 14 hours at 75 ℃, and air cooling is carried out to room temperature.
The low temperature soluble aluminum alloy obtained by the above procedure was tested with a tensile strength at room temperature of 390MPa and an elongation of 12.9% and a corrosion rate in a 3% KCl solution of about 5.5mm/h in a low temperature environment at 50 ℃.
From the above, the low-temperature soluble aluminum alloy prepared by the invention realizes the controlled dissolution of the material in a low-temperature environment, and also has good mechanical properties and stable dissolution rate in the low-temperature environment.
The prepared low-temperature soluble aluminum alloy can be used for manufacturing fracturing tools for shale oil and gas exploitation, such as all-metal bridge plug expander rings.
Claims (5)
1. A low-temperature soluble aluminum alloy, which comprises the following elements in percentage by weight: 1.5wt% of Mg, 1wt% of Ga, 0.7wt% of In, 1wt% of Sn, and the balance of Al and unavoidable impurity elements; the tensile strength of the low-temperature soluble aluminum alloy is 390-460 MPa, and the elongation is 12-20%; the preparation method comprises the following steps:
step 1), weighing the elements according to the weight percentage, wherein Mg is introduced into the alloy as an Al-Mg intermediate alloy, ga is introduced into the alloy as an Al-Ga intermediate alloy, in is introduced into the alloy as an Al-In intermediate alloy, sn is introduced into the alloy as an Al-Sn intermediate alloy, and less than Al is introduced into the alloy as a pure aluminum ingot;
step 2), smelting and casting: under the protection of argon, heating and melting a pure aluminum ingot, when the temperature of the molten liquid reaches 715-735 ℃, sequentially adding an Al-Mg intermediate alloy, an Al-Ga intermediate alloy, an Al-In intermediate alloy and an Al-Sn intermediate alloy, smelting at 720-760 ℃, and preserving heat for 40-60 min; refining for 20-30min, heating to 740-780 ℃, standing, preserving heat for 30-40min, and casting into semicontinuous ingot at 720-740 ℃;
step 3) homogenization treatment: homogenization treatment system: heating to 160-220 ℃ at 80-120 ℃/h, preserving heat for 0.5-1h, heating to 420-450 ℃ at 100-150 ℃/h, preserving heat for 4-9h, cooling to 150-180 ℃ with strong air, preserving heat for 0.5-1h, heating to 505-525 ℃ at 150-200 ℃/h, preserving heat for 10-14h, and cooling to room temperature;
step 4) hot extrusion treatment: hot extrusion is carried out on the cast ingot to prepare a bar; wherein the extrusion temperature is 440 ℃, the extrusion ratio is 15-20, and then the extruded material is subjected to solution treatment: firstly preserving heat at 440 ℃ for 1-2h, then preserving heat at 500 ℃ for 1-2h, and then placing in 10% NaCl brine at 15-25 ℃ for quenching, so that the obtained aluminum alloy material is cooled to below 50 ℃;
and 5) carrying out aging treatment, wherein the aging treatment system comprises: heat preservation is carried out for 6-10h at 100-150 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 10-15h at 70-80 ℃, air cooling is carried out to room temperature, heat preservation is carried out for 10-12h at 80-100 ℃, water cooling is carried out to room temperature, heat preservation is carried out for 10-14h at 60-80 ℃, and air cooling is carried out to room temperature.
2. The low-temperature soluble aluminum alloy according to claim 1, wherein in the step 2), a impurity removing agent is added for impurity removal during refining, and the impurity removing agent comprises sodium fluoride, sodium chloride and potassium chloride in a mass ratio of 1:1:1, a step of; the adding amount of the impurity removing agent is 2-3% of the total mass of the melt.
3. The low-temperature soluble aluminum alloy according to claim 1, wherein in the step 2), a slag-removing agent is added to remove slag, the slag-removing agent is aluminum titanium boron wire, and the slag-removing agent is added in an amount of 2-3% of the total mass of the melt.
4. The low temperature soluble aluminum alloy according to claim 1, wherein in the melting process of step 2), a refiner is added to refine the grains, the refiner addition being 1% of the total mass of the melt; wherein the refiner comprises Cu-P intermediate alloy and Al-Ti-B intermediate alloy, and the mixture ratio is as follows: the total mass percentage of the melt is 0.35-0.45% of Cu-P intermediate alloy and 0.55-0.65% of Al-Ti-B intermediate alloy.
5. Use of a low temperature soluble aluminum alloy according to any one of claims 1 to 4 in the manufacture of a fracturing tool for shale oil and gas exploitation.
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| CN202210402407.1A CN114752827B (en) | 2022-04-18 | 2022-04-18 | Low-temperature soluble aluminum alloy and application thereof |
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