Smelting method of super-strong steel wire coating alloy
By using a pit furnace for staged heating and the use of aluminum-rare earth master alloys, combined with aluminum foil-wrapped refining agents and worm gear fixing, the problems of component segregation and rare earth oxidation in the smelting of Zn-Al-M multi-element alloys were solved, achieving stable production and performance improvement of high-strength cable steel wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
In existing Zn-Al-M multi-element alloy smelting methods, the differences in melting points of Mg, Zn, and Al lead to component segregation, and the oxidation loss rate of rare earth elements is high and difficult to control precisely, affecting the coating performance and fatigue performance of cable steel wires. Moreover, the existing process has poor stability and cannot meet the needs of large-scale production of high-strength cable steel wires.
A pit furnace is used for staged heating and cooling. An aluminum-rare earth master alloy is used to replace pure rare earth feed. The material is refined by dry C2Cl6 refining agent wrapped in aluminum foil. The crucible is fixed by a worm gear structure to ensure stable melting temperature and uniform composition.
It significantly improves the adhesion between the coating and the steel wire substrate, enhances the fatigue life and corrosion resistance of cable steel wire, improves operational safety and product qualification rate, and ensures the efficient production of high-strength cable steel wire.
Smart Images
Figure CN121782855A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of alloy smelting technology, and more specifically to a smelting method for an ultra-strong steel wire coating alloy. Background Technology
[0002] Zn-Al-M multi-element alloy (containing Mg and rare earth elements such as Sm and Gd) is the core coating material for high-strength cable steel wire. Its coating performance directly determines the tensile strength, corrosion resistance and fatigue life of the cable steel wire, and is the key to ensuring the safety of large-scale engineering structures such as bridges. In existing technologies, the smelting of multi-element alloys typically employs a one-time feeding and isothermal smelting method. However, due to the significant differences in melting points among Mg, Zn, and Al, one-time feeding easily leads to the high-temperature volatilization of low-melting-point Zn and insufficient dissolution of high-melting-point components, resulting in severe component segregation. This causes fluctuations in coating performance and affects the fatigue performance of cable steel wires. Furthermore, rare earth elements such as Sm and Gd are highly chemically reactive; direct feeding or feeding at inappropriate temperatures often results in oxidation loss rates exceeding 30%, making precise component control difficult and failing to fully leverage the refining and strengthening effects of rare earth elements on the coating structure. Consequently, existing smelting methods suffer from poor process stability and low product yield, making it difficult to meet the large-scale production needs of high-performance Zn-Al-M multi-element alloys for high-strength cable steel wires. Therefore, we propose a smelting method for ultra-strong steel wire coating alloys to address these issues. Summary of the Invention
[0003] The present invention aims to provide a smelting method for a high-strength steel wire coating alloy, in order to solve the problems of poor process stability, low product qualification rate and difficulty in meeting the large-scale production needs of high-performance Zn-Al-M multi-element alloys for high-strength cable steel wires in existing smelting methods.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a method for smelting an alloy coating on high-strength steel wire, wherein the smelting method is matched with a pit furnace, the pit furnace including a furnace body, a furnace cover and a crucible, the furnace body having a furnace chamber, the crucible being placed inside the furnace chamber, a furnace opening communicating with the furnace chamber being opened at the upper end of the furnace body, the furnace cover being located above the furnace opening, a positioning cavity being opened at the lower end of the furnace body, the positioning cavity having a positioning assembly for fixing the crucible, the positioning assembly including a rotating shaft, a turntable, a driving component and several positioning components, the rotating shaft being located on the lower wall of the furnace chamber, and the turntable being located at the position of the rotating shaft. At one end of the furnace chamber, a worm gear is provided at the end of the rotating shaft that extends into the positioning cavity. Several positioning components are evenly arranged on the lower wall of the furnace chamber. Each positioning component includes a slider, a positioning block, and a connecting rod. A groove matching the slider is opened on the lower wall of the furnace chamber, and the slider is located in the groove. The positioning block is located at the end of the slider that extends out of the groove. The connecting rod is located between the positioning block and the turntable, and both ends of the connecting rod are hinged to the positioning block and the turntable. The positioning block can abut against the inner wall of the lower end of the crucible. A driving component is located on the lower wall of the positioning cavity, and the driving component can drive the worm gear to rotate. The smelting method includes the following steps: Step 1: Preheating. Preheat the crucible, pure aluminum ingot, pure zinc ingot, pure magnesium ingot, and aluminum rare earth master alloy. Step 2: Melting. Place the pure aluminum ingots and pure magnesium ingots into a crucible, and place the crucible in the furnace and heat it to 720°C until it is completely melted. Step 3: Cool down. After controlling the temperature inside the furnace to 600℃, add pure zinc ingots into the crucible until they are completely melted. Step 4: Heat up. After the temperature inside the furnace reaches 720°C, add aluminum rare earth master alloy into the crucible until it is completely melted. Step 5: Add refining agent. Add the refining agent wrapped in aluminum foil into the crucible. The total weight of the refining agent is 0.4% of the weight of the melt. Step 6: Stirring. Stir the melt after adding the refining agent. Step 7: Casting. Pour the stirred melt into a mold for casting, and then let it cool naturally to room temperature.
[0005] The beneficial effects of this scheme are as follows: by first melting pure aluminum and pure magnesium ingots at 720℃, the high-melting-point basic components are fully melted. Then, the temperature is lowered to 600℃ to smelt pure zinc ingots, thereby avoiding the volatilization of Zn at high temperatures. Then, the temperature is raised to 720℃ to add rare earth master alloy. The aluminum-rare earth master alloy replaces pure rare earth in the feed. The compatibility between the master alloy and the Al-based melt is used to increase the melting rate, while reducing the activity of rare earth elements and avoiding oxidation and burn-off of the rare earth master alloy. The role of rare earth elements in refining the coating grain and improving the bonding force between the coating and the steel wire substrate is fully utilized, which significantly enhances the fatigue life and corrosion resistance of high-strength cable steel wire. The refining agent is wrapped in aluminum foil to avoid violent reaction between the refining agent and the high-temperature melt, which greatly improves the operational safety.
[0006] Preferably, as an improvement, the aluminum rare earth master alloys are Al-20%Sm and Al-10%Gd.
[0007] Preferably, as an improvement, the preheating temperature is set to 200°C.
[0008] Preferably, as an improvement, the refining agent is set as a dry C2Cl6 refining agent.
[0009] The beneficial effects are as follows: the dry C2Cl6 refining agent can stably decompose to produce Cl2 gas at a melting temperature of 720℃. Cl2 reacts with H2 and oxidized impurities in the melt to generate HCl gas and composite slag phase that are easy to float, thus achieving efficient degassing and impurity removal. Furthermore, wrapping the C2Cl6 refining agent with aluminum foil can slow down the decomposition rate of C2Cl6, avoid excessively violent local reactions that could cause melt splashing, and ensure that the refining agent is in full contact with the melt.
[0010] Preferably, as an improvement, the driving component includes a worm, a mounting base, a push rod, two gears, and a rack. The mounting base is located on the upper wall of the positioning cavity, the worm is located inside the mounting base and meshes with a worm wheel, the two gears are symmetrically located at the end of the worm that extends out of the mounting base, the lower wall of the positioning cavity is symmetrically provided with two sets of guide rails, each guide rail is provided with a guide block, the two racks are respectively located at the end of the guide block that extends out of the guide rail and mesh with the corresponding gears, and the end of the push rod that extends into the positioning cavity is fixedly connected to the end of the two guide blocks.
[0011] The beneficial effects are as follows: By pushing the push rod, the operator moves the guide block along the guide rail, which causes the rack to drive the meshing gear to rotate. The gear then drives the worm gear in the mounting base to rotate, which in turn drives the turntable to rotate slowly through the worm wheel. This achieves the fixation of each positioning block to the lower end of the crucible. At the same time, the worm wheel and worm have a reverse self-locking function, so the worm wheel cannot drive the worm gear in the opposite direction. After the positioning block fixes the crucible, even if the crucible is scraped during stirring or impacted during feeding, the positioning block can remain fixed and not loose, ensuring uniform alloy melting and mixing.
[0012] Preferably, as an improvement, the furnace body has a movable groove connected to the furnace chamber. Two guide rods are symmetrically arranged in the movable groove. Two insulation plates are slidably installed on the outer walls of the two guide rods. A semi-circular groove is opened at one end of the two insulation plates that are close to each other. A closed groove is symmetrically opened at the upper end of the furnace body, and the closed groove is located on both sides of the furnace opening. An opening and closing rod is provided at the upper end of both insulation plates, and the opening and closing rod is located in the corresponding closed groove.
[0013] The beneficial effects are as follows: Two insulation plates slide in the moving groove via guide rods. The operator controls the distance between the two insulation plates by opening and closing rods. When the two insulation plates move away from each other, the furnace chamber and furnace opening are directly connected, allowing the operator to quickly put the crucible into the furnace chamber or take the crucible out of the furnace chamber. When the two insulation plates abut each other, the semicircular grooves of the two insulation plates are joined together to form a complete circular through hole, thereby preventing the heat in the furnace chamber from being directly lost through the furnace opening, which would cause the temperature difference near the furnace opening to be too large and result in uneven alloy melting temperature. At the same time, the operator can insert feeding tools or stirring rods into the furnace chamber through the two semicircular grooves to complete the feeding and stirring of the alloy melting.
[0014] Preferably, as an improvement, the furnace cover has symmetrical arc-shaped grooves at one end near the furnace opening, and the upper ends of the two opening and closing rods are respectively located in the corresponding arc-shaped grooves.
[0015] The beneficial effect is that workers can adjust the two insulation boards by rotating the furnace lid, which causes the rotating arc groove to push the opening and closing rod to move, thus avoiding burns caused by workers directly touching the opening and closing rod.
[0016] Preferably, as an improvement, the upper end of the furnace body is provided with a connecting pipe, which can be connected to the furnace cover, and the connecting pipe and the outer wall of the furnace cover are provided with joint clamps.
[0017] The beneficial effect is that the end face of the connecting pipe and the furnace cover form an annular contact surface, which, together with the radial clamping force of the joint clamp, achieves a seal at the junction.
[0018] Preferably, as an improvement, tension springs are symmetrically provided between the two insulation boards and the inner wall of the moving groove, and each tension spring is located on the outer wall of the guide rod.
[0019] The beneficial effects are as follows: when the tension spring is in its natural state, the two insulation boards are separated from each other. When the staff puts the two insulation boards together, the tension spring is in a stretched state. When the staff separates the furnace cover from the connecting pipe, the two closed insulation boards move to both sides under the action of the tension spring, thus moving into the moving slot and exposing the furnace chamber, so that the staff can quickly take out the crucible.
[0020] Preferably, as an improvement, the furnace body has a locking groove that communicates with the moving groove, a guide groove is provided through the positioning cavity and the locking groove, two guide blocks are provided with a moving block at one end near the guide groove, a locking groove is provided at the end of the moving block away from the rack, two insulation plates are provided with a locking block at one end near the locking groove, and a slot is provided at the end of the two locking blocks away from each other, and the locking groove can engage with the slot.
[0021] The beneficial effects are as follows: When the pit furnace is not in operation, all tension springs are in their natural state, and the two insulation plates are separated. After the worker places the crucible into the furnace chamber, the furnace cover is then aligned with the connecting pipe. Simultaneously, the two arc-shaped grooves at the lower end of the furnace cover are aligned with the corresponding opening and closing rods. Then, by rotating the furnace cover, the worker causes the rotating arc-shaped grooves to push the opening and closing rods along the closing grooves until the two insulation plates abut against each other, and the two locking blocks also close. At this point, the tension springs are in a stretched state. Then, the worker pushes the push rod to move the guide block along the guide rail, thereby causing the rack to drive the gear meshing with it to rotate. The gear then drives the worm gear in the mounting base to rotate, which in turn drives the worm gear to rotate through the worm wheel. The disc rotates slowly, fixing each positioning block to the lower end of the crucible. Simultaneously, the moving guide block pushes the moving block to move until the locking groove of the moving block engages with the slot of the locking block, thus fixing the two insulation plates together. Finally, the operator uses the connector clamp to fix the furnace cover to the connecting pipe. When the operator needs to add material to the crucible, the operator unlocks the connector clamp and then directly separates the furnace cover from the connecting pipe. At this time, the two insulation plates do not separate under the action of the moving block, preventing a sudden drop in furnace temperature during the feeding and stirring operations, ensuring that the alloy is always in a suitable temperature range, and ensuring that the raw materials melt quickly after feeding and the components are evenly mixed during stirring. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the well-type furnace and furnace cover according to an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of the crucible according to an embodiment of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the pit furnace according to an embodiment of the present invention; Figure 4 This is a partial cross-sectional view of the pit furnace according to an embodiment of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the partial structure at point A in the middle; Figure 6 This is a three-dimensional structural schematic diagram of the positioning component according to an embodiment of the present invention; Figure 7 This is a three-dimensional structural diagram of the positioning cavity according to an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the moving groove according to an embodiment of the present invention; Figure 9 This is a three-dimensional structural schematic diagram of the locking groove according to an embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of the furnace cover according to an embodiment of the present invention. Detailed Implementation
[0023] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings of the instruction manual include: furnace body 1, crucible 2, fixing groove 3, furnace chamber 4, furnace opening 5, connecting pipe 6, joint clamp 7, positioning cavity 8, rotating shaft 9, worm gear 10, turntable 11, sliding groove 12, slider 13, positioning block 14, connecting rod 15, mounting base 16, worm gear 17, gear 18, guide rail 19, guide block 20, rack 21, push rod 22, moving groove 23, guide rod 24, insulation board 25, semi-circular groove 26, tension spring 27, closing groove 28, opening and closing rod 29, arc groove 30, locking groove 31, guide groove 32, moving block 33, locking groove 34, locking block 35, slot 36, furnace cover 37.
[0024] Example The basic implementation examples are as follows: Figures 1-10 As shown, a method for smelting an alloy for coating ultra-high strength steel wire is described. This smelting method is matched with a single-well furnace, such as... Figure 1 The well-type furnace shown includes a furnace body 1, a furnace cover 37, and a crucible 2, as follows: Figure 2 The crucible 2 shown has a fixing groove 3 at its lower end, such as Figure 3The furnace body 1 shown has a furnace chamber 4 inside, and a crucible 2 can be placed inside the furnace chamber 4. The crucible 2 is a graphite crucible 2. The upper end of the furnace body 1 has a furnace opening 5 that communicates with the furnace chamber 4. A connecting pipe 6 is fixedly installed on the upper end of the furnace body 1. A furnace cover 37 is located on the upper end of the connecting pipe 6 and can be connected to the connecting pipe 6. Figure 1 The furnace cover 37 shown is fixedly installed with a joint clamp 7 on the outer wall of the connecting pipe 6, as shown. Figure 4 The furnace body 1 shown has a positioning cavity 8 at its lower end, and the positioning cavity 8 is equipped with a positioning component that can fix the crucible 2, such as... Figure 5 and Figure 6 The positioning assembly shown includes a rotating shaft 9, a turntable 11, a driving component, and several positioning components. In this embodiment, the positioning components are set in three groups, such as... Figure 5 The rotating shaft 9 shown is rotatably mounted on the lower wall of the furnace chamber 4, and a worm gear 10 is fixedly mounted on the lower end of the rotating shaft 9, as shown. Figure 6 The turntable 11 shown is fixedly installed on the upper end of the rotating shaft 9. Three sets of positioning components are evenly distributed on the lower wall of the furnace chamber 4. Each positioning component includes a slider 13, a positioning block 14, and a connecting rod 15. Figure 5 Therefore, the lower wall of the furnace chamber 4 is provided with a groove 12 that matches the slider 13. The slider 13 is slidably installed in the groove 12, and the positioning block 14 is fixedly installed on the upper end of the slider 13. Figure 6 The connecting rod 15 shown is hinged between the positioning block 14 and the turntable 11, and both ends of the connecting rod 15 are hinged to the positioning block 14 and the turntable 11. The positioning block 14 can abut against the inner wall of the fixing groove 3 at the lower end of the crucible 2.
[0025] like Figure 5 The driving component shown is located on the lower wall of the positioning cavity 8, and the driving component can drive the worm gear 10 to rotate, as shown. Figure 5 and Figure 7 The drive components shown include a worm gear 17, a mounting base 16, a push rod 22, and two gears 18 and a rack 21, as follows: Figure 5 The mounting base 16 shown is fixedly installed on the upper wall of the positioning cavity 8. The worm gear 17 is rotatably installed inside the mounting base 16, and the worm gear 17 meshes with the worm wheel 10. Two gears 18 are symmetrically fixedly installed at one end of the worm gear 17 that extends out of the mounting base 16. Figure 7 Two sets of guide rails 19 are symmetrically fixedly installed on the lower wall of the positioning cavity 8 shown. Guide blocks 20 are slidably installed in both sets of guide rails 19. Two racks 21 are fixedly installed on the upper end of the guide blocks 20 respectively, and the two racks 21 are respectively meshed with the corresponding gears 18. The front end of the push rod 22 passes through the positioning cavity 8 and is fixedly connected to the rear end of the two guide blocks 20.
[0026] like Figure 8The furnace body 1 shown has a movable groove 23 connected to the furnace chamber 4. Two guide rods 24 are symmetrically fixedly installed in the movable groove 23. Two insulation plates 25 are slidably installed on the outer walls of the two guide rods 24. A semi-circular groove 26 is opened at the end of the two insulation plates 25 that are close to each other. Tension springs 27 are symmetrically provided between the two insulation plates 25 and the inner wall of the movable groove 23, and each tension spring 27 is located on the outer wall of the guide rod 24. Figure 9 The furnace body 1 shown has symmetrically arranged closed grooves 28 on its upper end, and the closed grooves 28 are located on both sides of the furnace opening 5, as shown. Figure 8 and Figure 9 Both insulation boards 25 shown are fixedly equipped with opening and closing rods 29 at their upper ends, and the opening and closing rods 29 are respectively located in the corresponding closing grooves 28, such as... Figure 10 The furnace cover 37 shown has symmetrical arc-shaped grooves 30 at its lower end, and the upper ends of the two opening and closing rods 29 are respectively located in the corresponding arc-shaped grooves 30.
[0027] like Figure 9 The furnace body 1 shown has a locking groove 31 that communicates with the moving groove 23, and a guide groove 32 is provided through the positioning cavity 8 and the locking groove 31, such as Figure 7 The two guide blocks 20 shown are fixedly mounted with a movable block 33 at their front ends. The movable block 33 extends into the locking groove 31 through the guide groove 32. The front end of the movable block 33 has a locking groove 34. Figure 9 Both of the two insulation boards 25 shown are fixedly installed with locking blocks 35 at the lower front end, and the locking blocks 35 are located in the locking grooves 31. The ends of the two locking blocks 35 that are far apart from each other are provided with slots 36. When the two locking blocks 35 abut against each other, the locking grooves 34 can engage with the two slots 36.
[0028] When the pit furnace is not in operation, all tension springs 27 are in their natural state, and the two insulation plates 25 are separated. After the worker places the crucible 2 into the furnace chamber 4, the furnace cover 37 is aligned with the connecting pipe 6. At the same time, the two arc-shaped grooves 30 at the lower end of the furnace cover 37 are aligned with the corresponding opening and closing rods 29. Then, by rotating the furnace cover 37, the worker causes the rotating arc-shaped grooves 30 to push the opening and closing rods 29 along the closing grooves 28 until the two insulation plates 25 abut against each other, and the two locking blocks 35 also close. At this time, the tension springs 27 are in a stretched state. Then, the worker pushes the push rod 22 to move the guide block 20 along the guide rail 19, thereby causing the rack 21 to drive the gear 18 meshing with it to rotate. The gear 18 then drives the worm gear 17 in the mounting base 16 to rotate, thereby causing the worm gear 17 to rotate through the worm. Wheel 10 drives turntable 11 to rotate slowly, fixing each positioning block 14 to the lower end of crucible 2. At the same time, moving guide block 20 pushes moving block 33 to move until the locking groove 34 of moving block 33 engages with the slot of locking block 35, thereby fixing the two insulation plates 25 closed by moving block 33. Finally, the operator fixes furnace cover 37 to connecting pipe 6 through connector clamp 7. When the operator needs to feed material into crucible 2, the operator unlocks through connector clamp 7 and then directly separates furnace cover 37 from connecting pipe 6. At this time, the two insulation plates 25 do not separate under the action of moving block 33, avoiding a sudden drop in furnace temperature during feeding and stirring operations, ensuring that the alloy is always in a suitable temperature range, ensuring that the raw materials melt quickly after feeding and that the components are mixed evenly during stirring.
[0029] The smelting method includes the following steps: Step 1: Preheating. Preheat crucible 2, pure aluminum ingot, pure zinc ingot, pure magnesium ingot, and aluminum rare earth master alloys Al-20%Sm and Al-10%Gd to 200℃. Step 2: Melting. The preheated pure aluminum ingots and pure magnesium ingots are put into crucible 2, and crucible 2 is placed in furnace 4 and heated to 720°C until completely melted. Step 3: Cool down. After controlling the temperature inside furnace 4 to drop to 600℃, add pure zinc ingots into crucible 2 until they are completely melted. Step 4: Heat up. After the temperature inside the furnace 4 reaches 720°C, add aluminum rare earth master alloy to the crucible 2 until it is completely melted. Step 5: Adding refining agent. Add the refining agent wrapped in aluminum foil into crucible 2 in 3 batches. The refining agent is set as dry C2Cl6 refining agent, and the total weight of the refining agent is 0.4% of the melt weight. Step 6: Stir. Stir the melt after adding the refining agent for 20 minutes. Step 7: Casting. Pour the stirred melt into a mold for casting, and then let it cool naturally to room temperature.
[0030] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A method for smelting an alloy for coating ultra-high strength steel wire, characterized in that: This smelting method is matched with a pit furnace, which includes a furnace body, a furnace cover, and a crucible. The furnace body has a furnace chamber, and the crucible is placed inside the furnace chamber. The upper end of the furnace body has a furnace opening that communicates with the furnace chamber. The furnace cover is located above the furnace opening. The lower end of the furnace body has a positioning cavity, which contains a positioning assembly for fixing the crucible. The positioning assembly includes a rotating shaft, a turntable, a drive component, and several positioning elements. The rotating shaft is located on the lower wall of the furnace chamber, and the turntable is located at the end of the rotating shaft located inside the furnace chamber. The rotating shaft extends through the positioning cavity. A worm gear is provided at one end. Several positioning components are evenly arranged on the lower wall of the furnace. Each positioning component includes a slider, a positioning block, and a connecting rod. A groove matching the slider is opened on the lower wall of the furnace. The slider is located in the groove. The positioning block is located at the end of the slider that extends out of the groove. The connecting rod is located between the positioning block and the turntable, and both ends of the connecting rod are hinged to the positioning block and the turntable. The positioning block can abut against the inner wall of the lower end of the crucible. A driving component is located on the lower wall of the positioning cavity and can drive the worm gear to rotate. The smelting method includes the following steps: Step 1: Preheating. Preheat the crucible, pure aluminum ingot, pure zinc ingot, pure magnesium ingot, and aluminum rare earth master alloy. Step 2: Melting. Place the pure aluminum ingots and pure magnesium ingots into a crucible, and place the crucible in the furnace and heat it to 720°C until it is completely melted. Step 3: Cool down. After controlling the temperature inside the furnace to 600℃, add pure zinc ingots into the crucible until they are completely melted. Step 4: Heat up. After the temperature inside the furnace reaches 720°C, add aluminum rare earth master alloy into the crucible until it is completely melted. Step 5: Add refining agent. Add the refining agent wrapped in aluminum foil into the crucible. The total weight of the refining agent is 0.4% of the weight of the melt. Step 6: Stirring. Stir the melt after adding the refining agent. Step 7: Casting. Pour the stirred melt into a mold for casting, and then let it cool naturally to room temperature.
2. The smelting method for a high-strength steel wire coating alloy according to claim 1, characterized in that: The aluminum rare earth master alloys are Al-20%Sm and Al-10%Gd.
3. The smelting method for a high-strength steel wire coating alloy according to claim 2, characterized in that: The preheating temperature is set to 200℃.
4. The smelting method for a high-strength steel wire coating alloy according to claim 3, characterized in that: The refining agent was set as a dry C2Cl6 refining agent.
5. The smelting method for a high-strength steel wire coating alloy according to claim 4, characterized in that: The driving component includes a worm, a mounting base, a push rod, two gears, and a rack. The mounting base is located on the upper wall of the positioning cavity, the worm is located inside the mounting base and meshes with a worm wheel, and the two gears are symmetrically located at the ends of the worm that extend out of the mounting base. The lower wall of the positioning cavity is symmetrically provided with two sets of guide rails, each with a guide block inside. The two racks are located at the ends of the guide blocks that extend out of the guide rails and mesh with the corresponding gears. The end of the push rod that extends into the positioning cavity is fixedly connected to the ends of the two guide blocks.
6. The smelting method for a high-strength steel wire coating alloy according to claim 5, characterized in that: The furnace body has a movable groove connected to the furnace chamber. Two guide rods are symmetrically arranged in the movable groove. Two insulation plates are slidably installed on the outer walls of the two guide rods. A semi-circular groove is opened at the end of the two insulation plates that are close to each other. A closed groove is symmetrically opened at the upper end of the furnace body, and the closed groove is located on both sides of the furnace opening. An opening and closing rod is provided at the upper end of the two insulation plates, and the opening and closing rod is located in the corresponding closed groove.
7. The smelting method for a high-strength steel wire coating alloy according to claim 6, characterized in that: The furnace cover has symmetrical arc-shaped grooves at one end near the furnace opening, and the upper ends of the two opening and closing rods are respectively located in the corresponding arc-shaped grooves.
8. The smelting method for a high-strength steel wire coating alloy according to claim 7, characterized in that: The upper part of the furnace body is equipped with a connecting pipe, which can be connected to the furnace cover. The connecting pipe and the outer wall of the furnace cover are both equipped with joint clamps.
9. The smelting method for a high-strength steel wire coating alloy according to claim 8, characterized in that: Two insulation boards are symmetrically fitted with tension springs between them and the inner wall of the moving groove, and each tension spring is located on the outer wall of the guide rod.
10. The smelting method for a high-strength steel wire coating alloy according to claim 9, characterized in that: The furnace body has a locking groove that communicates with the moving groove. A guide groove is provided through the positioning cavity and the locking groove. Two guide blocks are provided with a moving block at one end near the guide groove. A locking groove is provided at the end of the moving block away from the rack. Two insulation plates are provided with locking blocks at one end near the locking groove. The two locking blocks are provided with slots at the ends away from each other. The locking groove can engage with the slot.