Preparation method of CXEXEP multi-element anti-scaling, descaling and anti-wax alloy

Abstract

The invention discloses a preparation method of a CXEXEP multi-element anti-scaling, descaling and anti-wax alloy, when a material is smelted for multiple times, grains in the alloy are homogenized and formed, the specific surface area of copper, gold, silver, zinc and the like on the surface of the material is close to 1: 1, and the micro-current of the gold alloy can be continuously and stably improved in the state, so that various service performances of the alloy are optimized. In the water treatment process, the phase change driving force in a solution can be stably changed through the microbattery reaction of the alloy, so that the solubility of scale is changed, meanwhile, released free electrons bombard hydrogen bonds, a micro electric field formed by the scale is destroyed, and the scale inhibiting and removing effects are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of alloy preparation, and in particular, relates to a method for preparing a CXEXEP multi-element anti-scaling, descaling and anti-wax alloy. Background Art

[0002] CXEXEP multi-component anti-scaling and anti-wax alloys made of 5 to 13 main metals have attracted widespread attention in recent years. Due to its multi-component effect, the internal crystallization of the high-temperature alloy becomes a BCC structure. Compared with the traditional alloy FCC, the multi-component alloy has better plasticity, strength, electrochemical properties and corrosion resistance. Due to its excellent performance, multi-component alloys are widely used in water treatment materials, refractory and high-temperature resistant materials, and anti-corrosion coating materials.

[0003] Chemical methods for scale inhibition and corrosion resistance cannot completely solve the problem, but can only delay the time of metal scaling and corrosion. With the improvement of alloy preparation methods, the use of functional materials is breaking through the previous technical bottlenecks. Mechanical alloying is a common method for preparing multi-base alloys. The use of high-temperature alloys can improve the pressure resistance and shear resistance of its equipment. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems existing in the prior art and provide a method for preparing a CXEXEP multi-element anti-scaling, descaling and anti-wax alloy. The preparation method of the present invention can reduce the loss of raw materials and the prepared alloy has excellent performance.

[0005] The purpose of the present invention and the solution to the technical problem are achieved by adopting the following technical solutions.

[0006] One aspect of the present invention provides a method for preparing a CXEXEP multi-element anti-scaling, descaling and anti-wax alloy, the method comprising the following steps: S1: weigh according to the proportion of each raw material component; S2: Mixing metal raw material powders with a particle size of 150-280 mesh, and then introducing the mixture into a melting furnace to granulate and crystallize the alloy powder; S3: Take out the bar and place it in the air to cool naturally.

[0007] Preferably, the percentage content of the raw materials in step S1 is: Al 30%~40%, Fe 10%~20%, Cu 10%~30%, Co 20%~30%, Mn 10%~15%, Zn 2%~5%, Ag1-5%, Au0.3-1%.

[0008] Preferably, the purity of the metal element in step S2 is 99.99%.

[0009] Preferably, the nano-forming conditions in step S2 are: crystallization temperature 0-1450° C., action time 46 minutes, and homogenization method: mechanical stirring.

[0010] Preferably, the smelting conditions in step S3 are: the diameter of the molding die is 210, and the height of the die is 460.

[0011] Preferably, the medium frequency furnace conditions in step S3 are: operating voltage is 220V, and current is 1350A to 1600A.

[0012] By means of the above technical scheme, the present invention has at least the following advantages: the present invention uses alloy as the main raw material, and rare earth elements can change the positions of atoms of each element in the high-temperature alloy in the crystal lattice, thereby enabling the high-temperature alloy to exert electrochemical effects, scale inhibition and anti-corrosion effects to a greater extent.

[0013] The CXEXEP multi-element anti-scaling, descaling and anti-wax alloy of the present invention firstly obtains a uniform crystal phase structure through a high-temperature alloying process. Then, the loss of metal raw materials is greatly reduced through a medium-frequency furnace smelting method, and the prepared alloy has good performance. When the fluid passes through the high-temperature alloy, not only the fluid molecules are easily decomposed, but also the polarized dipoles and the exposed metal surface will produce a wall effect, so that a certain thickness of scale-forming ion coupling is deposited on the metal surface of the pipe wall, thereby improving the pressure resistance, shear resistance, tensile resistance and scale resistance of the metal wall pipe.

[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a planed surface diagram of the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy obtained according to Example 1 of the present invention; Figure 2 This is a 3000x electron microscope image of the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy obtained according to Example 1 of the present invention. Implementation

[0016] In order to make the technical solutions, creative features and functions of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention and the accompanying drawings. Example 1: The raw material components were weighed according to weight percentage, wherein Al 30%-40%, Fe 10%-20%, Cu 10%-30%, Co 20%-30%, Mn 10%-15%, Zn 2%-5%, Ag 1-5%, and Au 0.3-1%.

[0017] Firstly, the above-mentioned metal particles with a purity of 99.99% were smelted in a medium frequency smelting furnace by high-temperature alloying method. The operating voltage was 220V, the current was 1300A, the smelting temperature was 1580℃, and the smelting time was 110min to obtain the scale-resistant and corrosion-resistant CXEXEP multi-element anti-scaling, descaling and anti-wax alloy.

[0018] Example 2: The raw material components were weighed according to weight percentage, wherein Al 31%~41%, Fe 11%~21%, Cu11%~31%, Co 21%~31%, Mn 11%~14%, Zn 2%~4%, Ag1-5%, and Au0.3-1.2%.

[0019] Firstly, the above-mentioned various metal particles with a purity of 99.98% were smelted in a medium frequency smelting furnace by high-temperature alloying method. The operating voltage was 210V, the current was 1450A, the smelting temperature was 1460℃, and the smelting time was 115min to obtain the scale-resistant and corrosion-resistant CXEXEP multi-element anti-scaling, descaling and anti-wax alloy.

[0020] Example 3: The raw material components were weighed according to weight percentage, wherein Al 29%~41%, Fe 9%~21%, Cu9%~31%, Co 19%~31%, Mn 9%~14%, Zn 2.1%~4.4%, Ag1-5%, and Au0.3-1.2%.

[0021] Firstly, the above-mentioned various metal particles with a purity of 99.97% were smelted in a medium frequency smelting furnace by high-temperature alloying method. The operating voltage was 230V, the current was 1460A, the smelting temperature was 1470℃, and the smelting time was 80min to obtain the scale-resistant and corrosion-resistant CXEXEP multi-element anti-scaling, descaling and anti-wax alloy.

[0022] Comparative Example 1: The raw material components were weighed according to weight percentage, wherein Al 29%~41%, Fe 9%~21%, Cu9%~31%, Co 19%~31%, Mn 9%~14%, Zn 2.1%~4.4%, Ag1-5%, and Au0.3-1.2%.

[0023] Corrosion and scale resistance test of test alloys Experimental objects: Examples 1-3 and Comparative Example 1.

[0024] By implementing EDTA titration of ion changes before and after implementation, the corrosion resistance and scale inhibition rates were measured: the results are shown in Table 1.

[0025] Table 1 Statistics of corrosion resistance and scale inhibition rate of alloys Example 1 Example 2 Example 3 Comparative Example 1 Corrosion resistance rate (%) 88 88 87 77 Scale inhibition rate (%) 93 87 85 76 It can be seen from the results in Table 1 that the corrosion protection rate and scale inhibition rate of the alloys prepared according to Examples 1-3 of the present invention are significantly higher than those of Comparative Example 1.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for preparing a CXEXEP multi-element anti-scaling, descaling and anti-wax alloy, characterized in that: The method comprises the following steps: S1: Weigh according to the proportion of each raw material component; S2: Mixing metal raw material powders with a particle size of 150-280 meshes, and then introducing the mixture into a melting furnace to nano-crystallize the alloy powder; S3: Take out the bar and place it in the air to cool naturally.

2. The method for preparing the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy according to claim 1, characterized in that: The percentage content of the raw materials in step S1 is: Al 30%~40%, Fe 10%~20%, Cu 10%~30%, Co 20%~30%, Mn 10%~15%, Zn 2%~5%, Ag1-5%, Au0.3-1%.

3. The method for preparing the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy according to claim 1, characterized in that: The purity of the metal raw material in step S2 is 99.99%.

4. The method for preparing the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy according to claim 1, characterized in that: The granulation conditions in step S2 are: crystallization temperature 0-1450° C., action time 46 minutes, and homogenization method: mechanical stirring.

5. The method for preparing the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy according to claim 1, characterized in that: The drying conditions in step S3 are: the temperature drops to 1450° C. and the time is 2 to 4 hours.

6. The method for preparing the CXEXEP multi-element anti-scaling, descaling and anti-wax alloy according to claim 1, characterized in that: The smelting conditions in step S3 are: the diameter of the forming mold is 210 and the height of the mold is 460.

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