High-temperature-resistant composite wear-resistant plate and preparation process thereof

Abstract

The high-temperature-resistant composite wear-resistant plate is characterized in that a chromium carbide alloy layer is welded to the surface of a base plate, the surface of the chromium carbide alloy layer is coated with an electroplated layer, the base plate is prepared through raw material melting, pouring, cooling and tempering, the chromium carbide alloy layer is made of chromium carbide alloy, and the electroplated layer is coated with an electroplated layer. The content of the chromium carbide alloy is 20%-30%; the plate is prevented from being in direct contact with high temperature and other objects, direct consumption of the plate is reduced, the service life of the plate is prolonged, meanwhile, the surface of the base plate is sequentially subjected to acid pickling, surface attachment of chromium carbide alloy and forming of a composite wear-resistant laminate, then electroplating is conducted, the surface strength of the base plate is improved, and the usability of the base plate is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of plates, and in particular relates to a high temperature resistant composite wear resistant plate and a preparation process thereof. Background Art

[0002] High-temperature composite wear-resistant plate is a composite material with excellent wear resistance and high temperature resistance. It is usually composed of multiple materials to meet the wear resistance requirements in high temperature environments. It is used in the metallurgical industry, cement industry, electric power industry, mining industry and chemical industry. The existing plates can basically meet the daily use needs, but there are still some shortcomings that need to be improved.

[0003] In the process of preparing the plate, a common preparation method is to melt the raw materials and add other elements during the smelting process to change the original properties of the plate, so that the plate has good wear resistance, high temperature resistance and other properties, thereby increasing the usability of the plate. However, after the plate is prepared, when the plate is used, the plate may preferentially come into contact with high temperature and other objects, which may cause the plate to be consumed quickly, and thus may reduce the service life of the plate. For this reason, we propose a high temperature resistant composite wear-resistant plate and its preparation process to solve the above problems. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a high-temperature resistant composite wear-resistant plate and a preparation process thereof. By sequentially arranging a chromium carbide alloy layer and an electroplating layer on the surface of the plate, the plate is prevented from directly contacting with high temperature and other objects, reducing the direct consumption of the plate, thereby increasing the service life of the plate.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A high temperature resistant composite wear-resistant plate material comprises: a chromium carbide alloy layer is welded on the surface of a base plate, and the surface of the chromium carbide alloy layer is coated with an electroplating layer, wherein the base plate is made by melting raw materials, pouring, cooling and tempering.

[0007] As a preferred technical solution of the present invention, the chromium carbide alloy layer is a chromium carbide alloy, and the content of the chromium carbide alloy is 20% to 30%.

[0008] A process for preparing a high temperature resistant composite wear-resistant plate comprises the following steps:

[0009] S1, prepare 7-9 parts of scrap steel, 5-7 parts of iron ingots, 2-3 parts of aluminum powder, 1-2 parts of magnesium powder, 1-2 parts of copper powder, 4-6 parts of steel powder, 1-2 parts of titanium powder, 0.5-0.8 parts of vanadium powder, 0.5-1 parts of manganese powder, 2-4 parts of nickel powder, 0.3-1 parts of chromium powder, and 1-2 parts of molybdenum powder;

[0010] S2, adding scrap steel and iron ingots into a furnace for melting, then sequentially adding the materials in step S1 into the furnace for melting, and mixing them during melting to obtain a mixed metal solution;

[0011] S3, after melting is completed, pouring the metal solution obtained in step S2 into the plate mold;

[0012] S4, cooling after pouring to obtain a metal sheet;

[0013] S5. After cooling, a tempering process is performed. During the tempering process, the tempering time is 60 minutes, and the temperature is maintained at 500-650°C, and the tempering process is repeated 4 times;

[0014] S6. After the four temperings are completed in step S5, the surface of the plate is pickled, and the tempered plate is immersed in a hydrochloric acid solution for 30 seconds, and then rinsed after the immersion is completed.

[0015] S7, after step S6 is completed, 20-30% of the chromium carbide alloy is bonded to the tempered substrate by electric arc, thereby forming a composite wear-resistant layer plate;

[0016] S8. After step S7 is completed, the plate is placed in a metal salt solution for electrogalvanizing.

[0017] As a preferred technical solution of the present invention, in step S4, the cast plate is placed indoors for natural cooling.

[0018] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0019] 1. The high temperature resistant composite wear-resistant plate and its preparation process are provided with a chromium carbide alloy layer and an electroplating layer in sequence on the surface of the plate, so as to avoid direct contact between the plate and high temperature and other objects, reduce direct consumption of the plate, and thus increase the service life of the plate.

[0020] 2. The high temperature resistant composite wear-resistant plate and its preparation process are provided by sequentially pickling the surface of the base plate and attaching chromium carbide alloy on the surface to form a composite wear-resistant layer plate, and then electroplating to increase the strength of the surface of the base plate and increase the usability of the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0022] Among them: 1. Base plate; 2. Chromium carbide alloy layer; 3. Electroplating layer. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, and purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials and reagents used in the following embodiments are all commercially available unless otherwise specified.

[0024] Embodiment 1

[0025] like Figure 1 The high temperature resistant composite wear-resistant plate shown comprises: a chromium carbide alloy layer 2 is welded on the surface of the base plate 1, and the surface of the chromium carbide alloy layer 2 is coated with an electroplating layer 3, wherein the base plate 1 is made by melting, pouring, cooling and tempering raw materials.

[0026] In other embodiments, the chromium carbide alloy layer 2 is a chromium carbide alloy, and the content of the chromium carbide alloy is 20% to 30%.

[0027] A process for preparing a high temperature resistant composite wear-resistant plate comprises the following steps:

[0028] S1, prepare 7 parts of scrap steel, 5 parts of iron ingots, 2 parts of aluminum powder, 1 part of magnesium powder, 1 part of copper powder, 4 parts of steel powder, 1 part of titanium powder, 0.5 parts of vanadium powder, 0.5 parts of manganese powder, 2 parts of nickel powder, 0.3 parts of chromium powder, and 1 part of molybdenum powder;

[0029] S2, adding scrap steel and iron ingots into a furnace for melting, then sequentially adding the materials in step S1 into the furnace for melting, and mixing them during melting to obtain a mixed metal solution;

[0030] S3, after the melting is completed, pouring the metal solution obtained in step S2 into the plate mold;

[0031] S4, cooling after pouring, placing the poured plate indoors for natural cooling, and obtaining a metal plate;

[0032] S5. After cooling, a tempering process is performed. During the tempering process, the tempering time is 60 minutes, and the temperature is maintained at 500°C. The tempering process is repeated 4 times;

[0033] S6. After the four temperings are completed in step S5, the surface of the plate is pickled, and the tempered plate is immersed in a hydrochloric acid solution for 30 seconds, and then rinsed after the immersion is completed.

[0034] S7, after step S6 is completed, 20-30% of the chromium carbide alloy is bonded to the tempered substrate by electric arc, thereby forming a composite wear-resistant layer plate;

[0035] S8. After step S7 is completed, the plate is placed in a metal salt solution for electrogalvanizing.

[0036] Example 2

[0037] A process for preparing a high temperature resistant composite wear-resistant plate comprises the following steps:

[0038] S1, prepare 8 parts of scrap steel, 6 parts of iron ingots, 2.5 parts of aluminum powder, 1.5 parts of magnesium powder, 1.5 parts of copper powder, 5 parts of steel powder, 1.25 parts of titanium powder, 0.6 parts of vanadium powder, 0.75 parts of manganese powder, 3 parts of nickel powder, 0.6 parts of chromium powder, and 1.5 parts of molybdenum powder;

[0039] S2, adding scrap steel and iron ingots into a furnace for melting, then sequentially adding the materials in step S1 into the furnace for melting, and mixing them during melting to obtain a mixed metal solution;

[0040] S3, after the melting is completed, pouring the metal solution obtained in step S2 into the plate mold;

[0041] S4, cooling after pouring, placing the poured plate indoors for natural cooling, and obtaining a metal plate;

[0042] S5. After cooling, a tempering process is performed. During the tempering process, the tempering time is 60 minutes, and the temperature is maintained at 600°C. The tempering process is repeated 4 times;

[0043] S6. After the four temperings are completed in step S5, the surface of the plate is pickled, and the tempered plate is immersed in a hydrochloric acid solution for 30 seconds, and then rinsed after the immersion is completed.

[0044] S7, after step S6 is completed, 20-30% of the chromium carbide alloy is bonded to the tempered substrate by electric arc, thereby forming a composite wear-resistant layer plate;

[0045] S8. After step S7 is completed, the plate is placed in a metal salt solution for electrogalvanizing.

[0046] Example 3

[0047] A process for preparing a high temperature resistant composite wear-resistant plate comprises the following steps:

[0048] S1, prepare 9 parts of scrap steel, 7 parts of iron ingots, 3 parts of aluminum powder, 2 parts of magnesium powder, 2 parts of copper powder, 6 parts of steel powder, 2 parts of titanium powder, 0.8 parts of vanadium powder, 1 part of manganese powder, 4 parts of nickel powder, 0.3-1 parts of chromium powder, and 2 parts of molybdenum powder;

[0049] S2, adding scrap steel and iron ingots into a furnace for melting, then sequentially adding the materials in step S1 into the furnace for melting, and mixing them during melting to obtain a mixed metal solution;

[0050] S3, after the melting is completed, pouring the metal solution obtained in step S2 into the plate mold;

[0051] S4, cooling after pouring, placing the poured plate indoors for natural cooling, and obtaining a metal plate;

[0052] S5. After cooling, a tempering process is performed. During the tempering process, the tempering time is 60 minutes, and the temperature is maintained at 500-650°C, and the tempering process is repeated 4 times;

[0053] S6. After the four temperings are completed in step S5, the surface of the plate is pickled, and the tempered plate is immersed in a hydrochloric acid solution for 30 seconds, and then rinsed after the immersion is completed.

[0054] S7, after step S6 is completed, 20-30% of the chromium carbide alloy is bonded to the tempered substrate by electric arc, thereby forming a composite wear-resistant layer plate;

[0055] S8. After step S7 is completed, the plate is placed in a metal salt solution for electrogalvanizing.

[0056] In the present technical solution: by sequentially arranging a base plate and a chromium carbide alloy layer on the surface of the plate, the plate is prevented from directly contacting with high temperature and other objects, and the direct consumption of the plate is reduced, thereby increasing the service life of the plate. Among the three groups of embodiments, the one with better high temperature resistance and wear resistance is embodiment three, but the one with better economic benefits is embodiment two. Therefore, the effect of embodiment two is higher than that of embodiment one, but the economic benefits are lower than those of embodiment three.

[0057] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above" a second feature; "above" and "above" include that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below" a second feature; "below" and "below" include that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] The above shows and describes the basic principles of the present invention; the main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high temperature resistant composite wear-resistant plate, characterized in that: include: A chromium carbide alloy layer (2) is welded on the surface of the base plate (1), and the surface of the chromium carbide alloy layer (2) is coated with an electroplating layer (3), wherein the base plate (1) is manufactured by melting raw materials, pouring, cooling and tempering.

2. The high temperature resistant composite wear-resistant plate material according to claim 1, characterized in that: The chromium carbide alloy layer (2) is a chromium carbide alloy, and the content of the chromium carbide alloy is 20% to 30%.

3. A process for preparing a high temperature resistant composite wear-resistant plate, characterized in that: The high temperature resistant composite wear-resistant plate according to claim 1-2 comprises the following steps: S1, prepare 7-9 parts of scrap steel, 5-7 parts of iron ingots, 2-3 parts of aluminum powder, 1-2 parts of magnesium powder, 1-2 parts of copper powder, 4-6 parts of steel powder, 1-2 parts of titanium powder, 0.5-0.8 parts of vanadium powder, 0.5-1 parts of manganese powder, 2-4 parts of nickel powder, 0.3-1 parts of chromium powder, and 1-2 parts of molybdenum powder; S2, adding scrap steel and iron ingots into a furnace for melting, then sequentially adding the materials in step S1 into the furnace for melting, and mixing them during melting to obtain a mixed metal solution; S3, after melting is completed, pouring the metal solution obtained in step S2 into the plate mold; S4, cooling after pouring to obtain a metal sheet; S5. After cooling, a tempering process is performed. During the tempering process, the tempering time is 60 minutes, and the temperature is maintained at 500-650°C, and the tempering process is repeated 4 times; S6, after the 4 temperings are completed in step S5, the surface of the plate is pickled, and the tempered plate is immersed in a hydrochloric acid solution for 30 seconds, and then rinsed after the immersion; S7, after step S6 is completed, 20-30% of the chromium carbide alloy is bonded to the tempered substrate by electric arc, thereby forming a composite wear-resistant layer plate; S8. After step S7 is completed, the plate is placed in a metal salt solution for electrogalvanizing.

4. A process for preparing a high temperature resistant composite wear-resistant plate according to claim 3, characterized in that: In step S4, the cast plate is placed indoors for natural cooling.

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