CN111101006A - Production process of uniform intermediate alloy cast strip - Google Patents

Production process of uniform intermediate alloy cast strip Download PDF

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Publication number
CN111101006A
CN111101006A CN202010010364.3A CN202010010364A CN111101006A CN 111101006 A CN111101006 A CN 111101006A CN 202010010364 A CN202010010364 A CN 202010010364A CN 111101006 A CN111101006 A CN 111101006A
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casting
temperature
solution
alloy
adjusting
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Inventor
陈邵龙
张亚培
刘飞
张永
王士斌
王炜
王会林
张娟
王静
刘永仙
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HEBEI SITONG NEW METAL MATERIAL CO Ltd
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HEBEI SITONG NEW METAL MATERIAL CO Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B22D11/003—Aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/182—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by measuring temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)

Abstract

The invention discloses a production process of a uniform master alloy casting strip. The method comprises heating and melting aluminum ingot, adjusting solution temperature, degassing and refining, adding certain-granularity raw materials, alloying, and degassing and refining for the second time; and finally, adjusting the temperature of the solution for casting, selecting tipping casting or bottom water-discharging casting for casting according to different intermediate alloys, and controlling the flow speed of the solution, the casting speed and the temperature of a mould to quickly solidify the solution into an intermediate alloy casting strip. According to the invention, through the raw material screening of specific granularity, the secondary degassing refining technology, the precise control of solution alloying and the temperature control technology of the die, the continuous casting mode combining continuous casting, tipping casting and bottom water discharge casting is adopted, the continuous production of the master alloy casting strip is realized, the distribution uniformity of second phase particles in the master alloy is improved, the composition segregation is reduced, and the product quality of the master alloy casting strip is greatly improved.

Description

Production process of uniform intermediate alloy cast strip
Technical Field
The invention relates to the field of intermediate alloy manufacturing, in particular to a production process of a uniform intermediate alloy casting strip.
Background
In modern high-end manufacturing industry, aluminum alloy is widely applied to automobile manufacturing, aerospace, military weapons and the like by virtue of excellent performance of the aluminum alloy, and the intermediate alloy is used as a raw material for producing the aluminum alloy and is the key for producing various excellent performances of the aluminum alloy. The master alloy can enable the aluminum alloy to have high conductivity, heat resistance, corrosion resistance, high strength and other strong comprehensive mechanical properties by performing the effects of element addition, grain refinement, grain modification, deoxidation, desulfurization, solution purification and the like on the aluminum alloy. The master alloy casting strip gradually becomes a development direction of high-end master alloys due to the advantages of high uniformity, accurate addition amount and the like. However, because elements such as Ti, B, Zr and the like exist in the aluminum solution as high-density intermediate compounds, the composition segregation phenomenon is easy to occur, and the existing method can not meet the production and quality requirements of the intermediate alloy cast strip.
Disclosure of Invention
The invention aims to provide a production process of a uniform master alloy casting strip, which aims to solve the problems in the prior art and obviously improve the defect of element segregation in a product.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a production process of a uniform master alloy casting strip, which comprises the following specific steps:
step 1: putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of aluminum liquid to 700-.
Step 2: adjusting the temperature of the molten liquid to 700-; the feeding time is set to be 5-30min, and the voltage of the electromagnetic stirring device in the feeding process is set to be 200-400V. The feeding speed has certain influence on the microstructure, particularly for fluoride salt raw materials, the feeding speed is directly related to the size and the quantity of salt slag inclusion in the microstructure, and the purity of an intermediate alloy product is directly influenced.
And step 3: after the feeding is finished, the temperature of the solution is adjusted to 800-. The alloying temperature is closely related to the fluidity of the solution, and the good fluidity is convenient for removing slag and gas in the degassing and refining processes; meanwhile, the uneven distribution of second phase particles in the furnace is avoided, and the segregation degree can be effectively reduced.
And 4, step 4: after alloying, adjusting the temperature of the solution to 700-; and when the raw materials are metal simple substances, degassing and refining, and when the raw materials are fluorine salts, degassing and refining and salt discharging are performed, and after the operation is finished, the surface scum is cleaned.
And 5: adjusting the temperature of the solution to 700 ℃ and 1000 ℃, and casting the solution into a chute, wherein the casting method comprises the steps of bottomWater discharging casting and tipping casting; the solution temperature is controlled at 750-800 ℃ by an electromagnetic heating system at the bottom of the chute, the rotating speed of the casting machine is 2-5r/min, and the cooling water flow of the casting machine is controlled at 30-70m3And h, enabling the casting strip to be rapidly solidified. The proper casting temperature solidification can effectively inhibit the increase of the particle size in the solution microstructure, and simultaneously, the cooling strength is manufactured by matching with certain cooling water flow in the casting process, so that the second phase particles of the microstructure are uniformly and dispersedly precipitated.
Step 6: and cutting the cast strip produced by the casting machine into cast strips on line through cast strip automatic cutting equipment.
Preferably, the weight percentage of aluminum in the aluminum ingot in the step 1 is more than or equal to 99.7 wt.%.
Preferably, the second metal in the intermediate alloy in the step 2 is 3-20% by mass.
Preferably, when the second metal in step 2 is titanium, the added raw material is metal titanium, titanium alloy or potassium fluotitanate; when the second metal is zirconium, the added raw material is metal zirconium or potassium fluozirconate; when the second metal is boron, the added raw material is potassium fluoborate.
Preferably, the particle size of the metal titanium or the titanium alloy is 2-5 mm; the particle size of the metal zirconium is 5-50 mm; more than 80% of the fluorine salt has a particle size of 80-100 meshes. According to the genetic characteristics of the material structure, the particle size of the raw material has a key influence on the particle size and aggregation condition in the intermediate alloy microstructure.
Preferably, the bottom water-discharging casting is selected from the alloy types which are easy to generate gravity segregation in the casting process, such as an AlTi intermediate alloy and an AlZr intermediate alloy; and selecting the alloy species with less alloy liquid segregation during casting to perform tip-over casting, such as AlB intermediate alloy.
The invention discloses the following technical effects:
1. the invention combines the working procedures of electric furnace smelting, rapid solidification of casting strip and on-line casting strip cutting, simplifies the production flow, improves the production efficiency and can continuously produce intermediate alloy casting strips with different lengths.
2. The invention improves the purity of the intermediate alloy cast strip by two times of degassing and refining.
3. According to the invention, by controlling the alloying temperature, the electromagnetic stirring voltage at different smelting stages, two selectable casting modes and the solidification speed of the cast strip, the distribution uniformity of second phase particles in the master alloy is improved, the composition segregation is reduced, and the product quality of the master alloy cast strip is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a microstructure of the product of example 1 (AlTi 10);
FIG. 3 is a graph of the Ti composition distribution (AlTi10) for the product of example 1;
FIG. 4 is a microstructure of a product of comparative example 1 (AlTi 10);
FIG. 5 is a graph showing the distribution of Ti content in the product of comparative example 1 (AlTi 10);
FIG. 6 is a microstructure of the product of example 2 (AlZr 10);
FIG. 7 is a microstructure diagram of a product of comparative example 2 (AlZr 10);
FIG. 8 is a microstructure of the product of example 3 (AlB 5);
FIG. 9 is a microstructure of a comparative example 3 product (AlB 5);
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Referring to fig. 1-5, the present embodiment provides a process for producing a homogeneous AlTi10 master alloy cast strip, which includes the following steps:
step 1: respectively weighing 600Kg of aluminum ingot and 70Kg of metallic titanium according to the batching requirements of the AlTi10 intermediate alloy, wherein the weight percentage of aluminum in the aluminum ingot is more than or equal to 99.7 wt.%, the content of metallic titanium in the raw material of the additive is more than 99.0%, and the particle size of metallic titanium particles is 2 mm. And putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of the aluminum liquid to 730 ℃, performing degassing refining through a degassing machine, wherein the degassing refining time is 10min, and performing slag removal treatment after degassing.
Step 2: the feeding speed of the metal titanium particles is accurately controlled through automatic feeding equipment, the feeding time is set to be 20min, and the voltage of an electromagnetic stirring device is set to be 300V in the feeding process.
And step 3: after the feeding is finished, the temperature of the solution is adjusted to 900-.
And 4, step 4: and after alloying is finished, adjusting the temperature of the solution to 800-900 ℃, performing degassing refining operation, and cleaning up surface scum after the operation is finished.
And 5: adjusting the temperature of the solution to 700-800 ℃, discharging water from the bottom of the solution, casting the solution into a chute, and controlling the temperature of the solution at 750 ℃ by an electromagnetic heating system at the bottom of the chute; the rotating speed of the casting machine is 2r/min, and the cooling water flow of the casting machine is controlled at 50m3And h, enabling the casting strip to be rapidly solidified.
Step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
The metallographic structure of the AlTi10 master alloy produced in example 1 was examined to obtain a microstructure shown in fig. 2, the Ti content at the sampling point was examined to obtain a Ti composition distribution map shown in fig. 3, and it can be seen from fig. 2 and 3 that Ti was uniformly distributed in the master alloy and the composition segregation was weak.
Comparative example 1:
comparative example 1 is a commercial product AlTi10 master alloy produced by the following process:
step 1: putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of aluminum liquid to 700-;
step 2: adjusting the temperature of the molten liquid to 700-750 ℃, adding the metal titanium particles into the aluminum melt, wherein the electromagnetic stirring voltage is 0-100V in the feeding process, and after the pressing-in is finished, adjusting the electromagnetic stirring voltage to 300-400V; directly adding metal raw materials, and setting the voltage of an electromagnetic stirring device to 200-400V in the feeding process;
and step 3: after the feeding is finished, adjusting the temperature of the solution to 1000-1300 ℃, setting the time for alloying to be 20-100 minutes, and adjusting the voltage of the electromagnetic stirring device to 200V during the alloying period;
and 4, step 4: after alloying is finished, performing slagging operation;
and 5: adjusting the temperature of the solution to 700-3H, enabling the casting strip to be rapidly solidified;
step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
Metallographic structure detection is carried out on the alloy to obtain a microstructure picture as shown in figure 4, sampling point Ti content detection is carried out on the alloy to obtain a Ti component distribution picture as shown in figure 5, and as can be seen from figures 4 and 5, Ti in the AlTi10 intermediate alloy in the comparative example 1 is not uniformly distributed, and the component segregation condition is serious.
Example 2
The embodiment provides a production process of a uniform AlZr10 intermediate alloy casting strip, which comprises the following steps:
step 1: respectively weighing 200Kg of aluminum ingot and 65Kg of potassium fluozirconate particles according to the batching requirements of the AlZr10 intermediate alloy, wherein the weight percentage of aluminum in the aluminum ingot is more than or equal to 99.7 wt.%, the content of the potassium fluozirconate in the raw materials of the additive is more than 98%, and the particle size of more than 80% of the potassium fluozirconate particles is 80-100 meshes. And putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of the aluminum liquid to 700 ℃, degassing and refining through a degassing machine for 10min, and removing slag after degassing.
Step 2: the feeding speed of the metal titanium particles is accurately controlled through automatic feeding equipment, the feeding time is set to be 20min, and the voltage of an electromagnetic stirring device is set to be 250V in the feeding process.
And step 3: after the feeding is finished, the temperature of the solution is adjusted to be 1000-1100 ℃, the time for alloying is set to be 15 minutes, and the voltage of the electromagnetic stirring device is adjusted to be 200V during the alloying period.
And 4, step 4: after alloying, adjusting the temperature of the solution to 800-; and after the slag removal is finished, tipping the electric furnace to discharge the fluorine salt byproduct on the surface, and adding a slag removing agent to remove slag.
And 5: adjusting the temperature of the solution to 700 ℃ and 800 ℃, and discharging water from the bottom of the solution and casting the solution into a chute; the electromagnetic heating system at the bottom of the chute controls the temperature of the solution at 750 ℃, the rotating speed of the casting machine at 4r/min and the cooling water flow of the casting machine at 50m3And h, enabling the casting strip to be rapidly solidified.
Step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
The metallographic structure of the AlZr10 master alloy produced in example 2 was examined to obtain a microstructure as shown in fig. 6, and it can be seen from fig. 6 that Zr is uniformly distributed in the master alloy and the segregation of components is weak.
Comparative example 2:
the comparative example 2 is a commercial AlZr10 intermediate alloy, and the production process is as follows:
step 1: putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of aluminum liquid to 700-;
step 2: adjusting the temperature of the melt to 700-750 ℃, adding the potassium fluozirconate raw material into the aluminum melt, feeding the raw material by adopting a manual pressing and salt adding method, wherein the electromagnetic stirring voltage is 0-100V in the feeding process, and adjusting the electromagnetic stirring voltage to 300-400V after the pressing is finished; directly adding metal raw materials, and setting the voltage of an electromagnetic stirring device to 200-400V in the feeding process;
and step 3: after the feeding is finished, adjusting the temperature of the solution to 1000-1300 ℃, setting the time for alloying to be 20-100 minutes, and adjusting the voltage of the electromagnetic stirring device to 200V during the alloying period;
and 4, step 4: after alloying, carrying out salt discharging and slag removing operation;
and 5: adjusting the temperature of the solution to 700-3H, enabling the casting strip to be rapidly solidified;
step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
The metallographic structure of the alloy is detected to obtain a microstructure diagram shown in FIG. 7, and as can be seen from FIG. 7, Zr in the intermediate alloy AlZr10 in the comparative example 2 is unevenly distributed, has an agglomeration phenomenon and is seriously segregated.
Example 3
The embodiment provides a production process of a uniform AlB5 master alloy casting strip, which comprises the following specific steps:
step 1: respectively weighing 200Kg of aluminum ingot and 125Kg of potassium fluoborate particles according to the batching requirements of the AlB5 intermediate alloy, wherein the weight percentage of aluminum in the aluminum ingot is more than or equal to 99.7 wt.%, the content of potassium fluoborate in the raw materials of the additive is more than 98%, and the particle size of more than 80% of the potassium fluoborate particles is 80-100 meshes. And putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of the aluminum liquid to 770 ℃, degassing and refining through a degassing machine, wherein the degassing and refining time is 10min, and slag removal treatment is carried out after degassing is finished.
Step 2: the feeding speed of the metal titanium particles is accurately controlled through automatic feeding equipment, the feeding time is set to be 10min, and the voltage of an electromagnetic stirring device is set to be 300V in the feeding process.
And step 3: after the feeding is finished, the temperature of the solution is adjusted to 900-950 ℃, the time for alloying is set to 40 minutes, and the voltage of the electromagnetic stirring device is adjusted to 200V during the alloying period.
And 4, step 4: after alloying, adjusting the temperature of the solution to 830 ℃, performing degassing refining operation, and cleaning up surface scum after the operation is finished; and after the slag removal is finished, tipping the electric furnace to discharge the fluorine salt byproduct on the surface, and adding a slag removing agent to remove slag.
And 5: adjusting the temperature of the solution to 700 ℃ and 750 ℃, and pouring the solution into a chute by tilting; the electromagnetic heating system at the bottom of the chute controls the temperature of the solution at 750 ℃, the rotating speed of the casting machine at 4r/min and the cooling water flow of the casting machine at 50m3And h, enabling the casting strip to be rapidly solidified.
Step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
The metallographic structure of the AlB5 master alloy produced in example 3 was examined to obtain a microstructure as shown in fig. 8, and it can be seen from fig. 8 that B is uniformly distributed in the master alloy and the segregation of components is weak.
Comparative example 3:
comparative example 3 is a commercial AlB5 master alloy, produced as follows:
step 1: putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of aluminum liquid to 700-;
step 2: adjusting the temperature of the molten liquid to 700-750 ℃, adding the potassium fluoborate particle raw material into the aluminum melt, and adopting a manual pressing and salt adding method to carry out charging, wherein the electromagnetic stirring voltage is 0-100V in the charging process, and after the pressing is finished, the electromagnetic stirring voltage is adjusted to 300-400V; directly adding metal raw materials, and setting the voltage of an electromagnetic stirring device to 200-400V in the feeding process;
and step 3: after the feeding is finished, adjusting the temperature of the solution to 1000-1300 ℃, setting the time for alloying to be 20-100 minutes, and adjusting the voltage of the electromagnetic stirring device to 200V during the alloying period;
and 4, step 4: after alloying, carrying out salt discharging and slag removing operation;
and 5: adjusting the temperature of the solution to 700-3H, enabling the casting strip to be rapidly solidified;
step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
The metallographic structure of the alloy is detected to obtain a microstructure picture as shown in FIG. 9, and as can be seen from FIG. 9, in comparative example 3, B is unevenly distributed in the AlB5 intermediate alloy, so that the agglomeration phenomenon exists and the component segregation condition is serious.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (6)

1. A production process of a uniform master alloy casting strip is characterized by comprising the following steps: the method comprises the following specific steps:
step 1: putting the aluminum ingot into smelting equipment for melting, adjusting the temperature of aluminum liquid to 700-;
step 2: adjusting the temperature of the molten liquid to 700-; setting the feeding time to be 5-30min, and setting the voltage of the electromagnetic stirring device to be 200-400V in the feeding process;
and step 3: after the feeding is finished, adjusting the temperature of the solution to 800-;
and 4, step 4: after alloying, adjusting the temperature of the solution to 700-; when the raw material is a metal simple substance, degassing and refining; when the raw materials are fluorine salts, degassing refining operation and salt discharge operation are carried out, and the surface scum is cleaned after the operation is finished;
and 5: adjusting the temperature of the solution to 700 ℃ and 1000 ℃, and casting the solution into a chute, wherein the casting method comprises bottom water-discharging casting and tipping casting; the solution temperature is controlled at 750-800 ℃ by an electromagnetic heating system at the bottom of the chute, the rotating speed of the casting machine is 2-5r/min, and the cooling water flow of the casting machine is controlled at 30-70m3H, enabling the casting strip to be rapidly solidified;
step 6: and cutting the casting strip produced by the casting machine into the casting strip with the required length on line through the casting strip automatic cutting equipment.
2. The process for producing a homogeneous master alloy cast strip according to claim 1, wherein: the weight percentage of the aluminum in the aluminum ingot in the step 1 is more than or equal to 99.7 wt.%.
3. The process for producing a homogeneous master alloy cast strip according to claim 1, wherein: and 2, the mass percentage of the second metal in the intermediate alloy is 3-20%.
4. The process for producing a homogeneous master alloy cast strip according to claim 1, wherein: step 2, when the second metal is titanium, the added raw material is metal titanium, titanium alloy or potassium fluotitanate; when the second metal is zirconium, the added raw material is metal zirconium or potassium fluozirconate; when the second metal is boron, the added raw material is potassium fluoborate.
5. The process for producing a homogeneous master alloy cast strip according to claim 4, wherein: the particle size of the metal titanium or the titanium alloy is 2-5 mm; the particle size of the metal zirconium is 5-50 mm; more than 80% of the fluorine salt has a particle size of 80-100 meshes.
6. The process for producing a homogeneous master alloy cast strip according to claim 1, wherein: and in the casting process, the alloy type of the alloy liquid which is easy to generate gravity segregation is cast by discharging water from the bottom, and the alloy type with less alloy liquid segregation is cast by tipping.
CN202010010364.3A 2020-01-06 2020-01-06 Production process of uniform intermediate alloy cast strip Pending CN111101006A (en)

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CN105154725A (en) * 2015-09-28 2015-12-16 河北四通新型金属材料股份有限公司 High-end Al-Zr intermediate alloy and industrial preparation method
CN105154697A (en) * 2015-09-29 2015-12-16 河北四通新型金属材料股份有限公司 Production system of intermediate alloy wires and production technology of intermediate alloy wires
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