CN113547805A - Wear-resistant plate and manufacturing method thereof - Google Patents
Wear-resistant plate and manufacturing method thereof Download PDFInfo
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- CN113547805A CN113547805A CN202010546813.6A CN202010546813A CN113547805A CN 113547805 A CN113547805 A CN 113547805A CN 202010546813 A CN202010546813 A CN 202010546813A CN 113547805 A CN113547805 A CN 113547805A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
- B32B37/065—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method resulting in the laminate being partially bonded
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- Engineering & Computer Science (AREA)
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Abstract
A wear plate and a method of manufacturing the wear plate includes a base layer, an adhesive metal layer, and a wear alloy layer. The base layer includes a first adhesive surface facing a first direction. The adhesive metal layer is stacked on the first adhesive surface of the base layer. The wear-resistant alloy layer comprises a second bonding surface which faces to the second direction and is connected with the bonding metal layer. The manufacturing method of the wear-resistant plate mainly comprises the steps of respectively forming the base layer and the wear-resistant alloy layer, and connecting the base layer and the wear-resistant alloy layer through the adhesion metal layer. And finally, putting the base layer, the adhesion metal layer and the wear-resistant alloy layer into a heating furnace together for heating and shaping. Because the base layer and the wear-resistant alloy layer are formed separately and then are bonded by the adhesion metal layer, the die can be prevented from being broken and the base layer can be prevented from being deformed due to molten iron casting.
Description
Technical Field
The present invention relates to a wear-resistant plate and a manufacturing method thereof, and more particularly, to a wear-resistant plate used for protecting conveying equipment, loading machines, material storage tanks, etc. and a manufacturing method thereof.
Background
Many industries, such as mining industry, steel industry, thermal power plant, cement industry, engineering machinery, etc., have problems of raw material impact and abrasion, and thus wear plates have been widely used to protect conveying equipment, loaders, raw material storage tanks, etc. In general, the wear-resistant plate needs to be cut appropriately according to the requirements of the use environment and then attached to the protected object, and therefore the wear-resistant plate usually includes a base layer with good welding performance and a wear-resistant metal layer coated on the base layer.
The existing wear-resistant plates are mostly manufactured by a sand mold casting method, and the manufacturing method generally comprises the steps of firstly forming the base layer by using the sand mold, then grinding the base layer, then placing the base layer into another sand mold, then casting molten iron of wear-resistant metal into the sand mold, and forming the wear-resistant metal layer on the base layer after cooling. By using the method, the base layer and the sand mold are preheated together before the molten iron of the wear-resistant metal is cast, so that the influence on the molten iron fluidity of the wear-resistant metal caused by the overlarge temperature difference between the base layer and the wear-resistant metal is avoided.
However, the preheating step affects the strength of the sand mold, and if the sand mold collapses, the sand mold is less noticeable, which may cause defects in the subsequent casting step. In addition, after the wear-resistant metal layer is cast, the base layer may deform at high temperature, and subsequent modification processing is required. Therefore, the wear plate manufactured by the prior sand mould casting method still has room for improvement.
Disclosure of Invention
One of the objects of the present invention is to provide a wear plate which overcomes at least one of the disadvantages of the background art.
The wear-resistant plate comprises a base layer, an adhesion metal layer and a wear-resistant alloy layer.
The base layer includes a first adhesive surface facing a first direction. The adhesive metal layer is connected to the first adhesive surface of the base layer. The wear-resistant alloy layer comprises a second bonding surface which faces to the first direction and is connected to the bonding metal layer.
According to the wear-resisting plate, the base layer is made of carbon steel or stainless steel.
The wear-resistant plate of the invention, the adhesion metal layer is an alloy of nickel, copper, cobalt, iron, aluminum, or a combination thereof.
The wear-resisting plate is characterized in that the thickness of the adhesion metal layer is 0.2 mm-0.5 mm.
It is a further object of the present invention to provide a method of manufacturing a wear plate which overcomes at least one of the disadvantages of the background art.
The manufacturing method of the wear-resisting plate comprises the following steps: respectively forming a base layer and a wear-resistant alloy layer. And B: coating an adhesive metal layer between the first adhesive surface of the base layer and the second adhesive surface of the wear-resistant alloy layer, and superposing the base layer, the adhesive metal layer and the wear-resistant alloy layer together. And C: and putting the base layer, the adhesion metal layer and the wear-resistant alloy layer which are mutually overlapped into a heating furnace together for heating.
In the manufacturing method of the wear-resistant plate, in the step a, after the base layer and the wear-resistant alloy layer are formed, a processing tool is used for respectively grinding and flattening the first bonding surface of the base layer and the second bonding surface of the wear-resistant alloy layer.
In the method for manufacturing a wear-resistant plate of the present invention, the adhesive metal layer in the step B is coated on at least one of the first adhesive surface and the second adhesive surface, and then the base layer, the adhesive metal layer and the wear-resistant alloy layer are stacked.
In the manufacturing method of the wear-resistant plate, the heating furnace in the step C heats the base layer, the adhesion metal layer and the wear-resistant alloy layer to a first temperature, and then heats the base layer, the adhesion metal layer and the wear-resistant alloy layer to a second temperature higher than the first temperature.
In the manufacturing method of the wear-resistant plate, the first temperature in the step C is 925 to 975 degrees celsius, and the second temperature is 1000 to 1300 degrees celsius.
The method for manufacturing a wear plate of the present invention further includes step D, which follows step C: and standing the base layer, the adhesion metal layer and the wear-resistant alloy layer in the heating furnace, cooling to 500 ℃, and cooling to below 30 ℃ by using gas.
The beneficial effects of the invention are: because the base layer and the wear-resistant alloy layer are formed separately and then bonded by the adhesive metal layer, compared with the existing sand mold casting method, the sand mold is not broken due to preheating, the deformation of the base layer due to the molten iron casting of the wear-resistant alloy layer can be avoided, and the quality of the wear-resistant plate can be maintained.
Drawings
Other features and effects of the present invention will be apparent from the embodiments with reference to the accompanying drawings, in which:
fig. 1 is a perspective view illustrating an embodiment of a wear plate in accordance with the present invention; and
fig. 2 is an exploded perspective view illustrating the adhesive metal layer of the embodiment between the first adhesive surface and the second adhesive surface; and
fig. 3 is a flow chart illustrating a flow of an embodiment of the method of manufacturing a wear plate in accordance with the present invention.
Detailed Description
Before the present invention is described in detail, it should be noted that in the following description, like components are denoted by the same reference numerals.
Referring to fig. 1 and 2, an embodiment of a wear plate according to the present invention includes a base layer 1, a wear-resistant alloy layer 3, and an adhesion metal layer 2 disposed between the base layer 1 and the wear-resistant alloy layer 3 and used for adhering the base layer 1 and the wear-resistant alloy layer 3.
The base layer 1 is made of various types of carbon steel or stainless steel, and includes a first bonding surface 11 facing the first direction L1 and polished flat.
The adhesion metal layer 2 is made of nickel, copper, cobalt, iron, aluminum or their alloys with a thickness of 0.2mm to 0.5mm, and is connected to the first adhesion surface 11 of the base layer 1. When the thickness of the adhesive metal layer 2 is less than 0.2mm, the bonding force between the base layer 1 and the wear-resistant alloy layer 3 is poor. When the thickness of the adhesive metal layer 2 is greater than 0.5mm, the adhesive metal layer 2 may overflow during adhesion. It should be noted that the thickness of the adhesive metal layer 2 is preferably 0.3mm, which can prevent the adhesive metal layer 2 from overflowing and achieve better adhesion effect.
The wear-resistant alloy layer 3 is connected to the adhesion metal layer 2, and includes a second adhesion surface 31 facing a second direction L2 opposite to the first direction L1 and polished flat, so that the adhesion metal layer 2 is located between the base layer 1 and the wear-resistant alloy layer 3, and the second adhesion surface 31 is connected to the adhesion metal layer 2. The main component of the wear-resistant alloy layer 3 includes 15 to 35 wt% of chromium, but the main component of the wear-resistant alloy layer 3 is not limited to the above ratio, and may be adjusted according to actual use requirements, for example, under a severer use environment, the main component is adjusted to 15 to 40 wt% of chromium, and then 2 to 15 wt% of tungsten. Wherein, both chromium and tungsten can improve the wear resistance of the wear-resistant alloy layer 3. In addition, 3-8 wt% of carbon can be selectively added into the wear-resistant alloy layer 3, and chromium carbide and tungsten carbide can be formed with chromium and tungsten to increase wear resistance.
It should be noted that, besides the above main components, the weight percentages of other trace elements of the wear-resistant alloy layer 3 are controlled below a specific standard value, such as: boron is a fluxing agent which can be added in the casting process, and the weight percentage is lower than 0.02 percent; too much copper may cause heat cracking of the wear-resistant alloy layer 3, and the weight percentage is required to be lower than 0.07%; too much nickel affects the corrosion resistance, and the weight percentage is required to be lower than 1.1 percent; the molybdenum is used as stable carbide, and the weight percentage of the molybdenum needs to be lower than 0.04 percent; sulfur and phosphorus are impurity elements in casting, slag inclusion is easy to generate, and cast parts become brittle, so the weight percentage of sulfur is required to be lower than 0.02 percent, and the weight percentage of phosphorus is required to be lower than 0.03 percent; magnesium and silicon are components of slag removing agent in casting, but the compound of magnesium and silicon can make cast product brittle, so the weight percentage of magnesium is required to be less than 1-3%, and the weight percentage of silicon is required to be less than 1.85%.
Referring to fig. 3, the method for manufacturing a wear plate according to the present invention includes step a: the base layer 1 and the wear-resistant alloy layer 3 are respectively cast and formed by two sand molds. After the base layer 1 and the wear-resistant alloy layer 3 are formed, the first bonding surface 11 of the base layer 1 and the second bonding surface 31 of the wear-resistant alloy are respectively ground and leveled by a processing machine.
And B: coating a slurry-shaped adhesive metal layer 2 on the first adhesive surface 11 of the base layer 1 in a rotating manner, and then overlapping the second adhesive surface 31 of the wear-resistant alloy layer 3 on the adhesive metal layer 2, so that the adhesive metal layer 2 is located between the first adhesive surface 11 and the second adhesive surface 31.
However, the adhesive metal layer 2 is not limited to be coated on the first bonding surface 11, and may be coated on the second bonding surface 31, or coated on both the first bonding surface 11 and the second bonding surface 31, and then the base layer 1 and the wear-resistant alloy layer 3 are laminated and bonded together by the adhesive metal layer 2 to form a sandwich-like laminated structure.
It should be noted that the form of the adhesive metal layer 2 is not limited to paste, but may be a solid sheet, and the adhesive metal layer 2 is directly placed between the first adhesive surface 11 and the second adhesive surface 31 to form a sandwich-like laminated structure.
Alternatively, the form of the adhesive metal layer 2 may be adjusted to powder, an electroplating coating, an electroless plating coating, a spray coating, a physical vapor deposition coating, a chemical vapor deposition coating, or the like according to the production requirement.
In addition, the manner of adding the adhesive metal layer 2 between the first adhesion surface 11 and the second adhesion surface 31 can be adjusted according to the type of the adhesive metal layer 2, for example: squeegee printing, compressed air gun spraying, electrostatic painting, and the like. Or by means of a spray coating, for example: high velocity flame spray, self-fluxing alloy powder spray, plasma spray, and the like.
And C: the base layer 1, the adhesive metal layer 2 and the wear-resistant alloy layer 3, which are stacked on each other, are placed into a heating furnace together, and are heated to a first temperature and maintained for a first holding time, wherein the first temperature can be set to 925 ℃ to 975 ℃ according to the size of the wear-resistant plate. In this embodiment, the first temperature is 950 ℃. In addition, the first temperature-holding time is set according to the size of the wear-resistant plate, when the total volume of the base layer 1, the adhesive metal layer 2 and the wear-resistant alloy layer 3 is less than or equal to 1000 cubic centimeters, the first temperature-holding time is 30 minutes, and when the total volume of the base layer 1, the adhesive metal layer 2 and the wear-resistant alloy layer 3 exceeds 1000 cubic centimeters, the first temperature-holding time is increased by 15 minutes every 1500 cubic centimeters, so as to ensure that the overall temperature of the base layer 1, the adhesive metal layer 2 and the wear-resistant alloy layer 3 can reach the first temperature.
Then, the base layer 1, the adhesion metal layer 2 and the wear-resistant alloy layer 3 are continuously heated to a second temperature higher than the first temperature and maintained for a second holding time, wherein the second temperature is set to be 1000 ℃ to 1300 ℃ according to the material of the adhesion metal layer 2, when the second temperature is lower than 1000 ℃, the adhesion metal layer 2 may not be melted and liquefied and cannot achieve the adhesion purpose, when the second temperature exceeds 1300 ℃, the adhesion metal layer 2 may be completely liquefied and cause the adhesion metal layer 2 to overflow, and after being completely liquefied, the surface tension of the adhesion metal layer 2 is large, so that the wear-resistant alloy layer 3 can slide and displace. The second temperature-holding time is set according to the size of the wear-resistant plate, and is 30 minutes when the total volume of the base layer 1, the adhesive metal layer 2, and the wear-resistant alloy layer 3 is 1500 cubic centimeters or less, and is increased by 15 minutes for every 2000 cubic centimeters when the total volume of the base layer 1, the adhesive metal layer 2, and the wear-resistant alloy layer 3 exceeds 1500 cubic centimeters.
Step D: after the step C is completed, the high-temperature base layer 1, the adhesive metal layer 2 and the wear-resistant alloy layer 3 are directly placed in the heating furnace, and are naturally cooled to 500 ℃, and then are cooled to below 30 ℃ in an air cooling manner to maintain the hardness of the wear-resistant alloy.
When the wear plate of the invention is used, the base layer 1 of the wear plate can be mounted on the machine or equipment to be protected after the wear plate is formed and cooled, and pins, bolts or other components capable of providing fixing function can be arranged on the base layer 1 according to actual use requirements, so that a user can conveniently mount the wear plate. However, the components capable of achieving the fixing function are various and are not important in the present application, and thus are not described in detail.
In summary, according to the wear plate and the manufacturing method thereof of the present invention, the base layer 1 and the wear-resistant alloy layer 3 are formed separately and then bonded by the adhesive metal layer 2, so that the deformation of the base layer 1 due to the molten iron casting of the wear-resistant alloy layer 3 can be avoided, compared with the conventional sand mold casting method without the sand mold collapsing due to preheating, and thus the quality of the wear-resistant plate can be maintained, and the object of the present invention can be achieved.
The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.
Claims (10)
1. A wear plate, characterized by: the wear-resistant plate comprises a base layer, an adhesion metal layer and a wear-resistant alloy layer; the base layer comprises a first adhesion surface facing a first direction; the adhesive metal layer is connected to the first adhesive surface of the base layer; the wear-resistant alloy layer comprises a second bonding surface which faces to the first direction and is connected to the bonding metal layer.
2. A wear plate in accordance with claim 1, wherein: the base layer is made of carbon steel or stainless steel.
3. A wear plate in accordance with claim 1, wherein: the adhesion metal layer is an alloy of nickel, copper, cobalt, iron, aluminum, or a combination thereof.
4. A wear plate in accordance with claim 1, wherein: the thickness of the adhesion metal layer is 0.2mm to 0.5 mm.
5. A method of manufacturing a wear plate, comprising: the manufacturing method of the wear-resisting plate comprises the steps of A, B and C; the step A: respectively forming a base layer and a wear-resistant alloy layer; and B, the step of: coating an adhesive metal layer between the first adhesive surface of the base layer and the second adhesive surface of the wear-resistant alloy layer, and superposing the base layer, the adhesive metal layer and the wear-resistant alloy layer together; and C, performing the step of: and putting the base layer, the adhesion metal layer and the wear-resistant alloy layer which are mutually overlapped into a heating furnace together for heating.
6. A method of manufacturing a wear plate in accordance with claim 5, wherein: and step A, after the base layer and the wear-resistant alloy layer are formed, respectively grinding and flattening the first bonding surface of the base layer and the second bonding surface of the wear-resistant alloy layer by using a processing machine.
7. A method of manufacturing a wear plate in accordance with claim 5, wherein: the adhesive metal layer of the step B is coated on at least one of the first adhesive surface and the second adhesive surface, and then the base layer, the adhesive metal layer and the wear-resistant alloy layer are stacked.
8. A method of manufacturing a wear plate in accordance with claim 5, wherein: the heating furnace of the step C heats the base layer, the adhesion metal layer and the wear-resistant alloy layer to a first temperature, and then heats the base layer, the adhesion metal layer and the wear-resistant alloy layer to a second temperature higher than the first temperature.
9. A method of manufacturing a wear plate in accordance with claim 8, wherein: the first temperature in the step C is 925 to 975 degrees centigrade, and the second temperature is 1000 to 1300 degrees centigrade.
10. A method of manufacturing a wear plate in accordance with claim 5, wherein: the manufacturing method of the wear-resisting plate further comprises a step D which is subsequent to the step C; the step D: and standing the base layer, the adhesion metal layer and the wear-resistant alloy layer in the heating furnace, cooling to 500 ℃, and cooling to below 30 ℃ by using gas.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109113900A TW202140266A (en) | 2020-04-24 | 2020-04-24 | Friction board and manufacturing method thereof prevent base layer from generating deformation because of molten iron casting |
| TW109113900 | 2020-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113547805A true CN113547805A (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010546813.6A Pending CN113547805A (en) | 2020-04-24 | 2020-06-16 | Wear-resistant plate and manufacturing method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN113547805A (en) |
| TW (1) | TW202140266A (en) |
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2020
- 2020-04-24 TW TW109113900A patent/TW202140266A/en unknown
- 2020-06-16 CN CN202010546813.6A patent/CN113547805A/en active Pending
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| Publication number | Publication date |
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| TW202140266A (en) | 2021-11-01 |
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