Roll collar
By hot-melting the tungsten carbide cladding layer on the carbon steel base of the rolling mill roll ring and providing accommodating grooves on the outer peripheral surface, the problems of high cost and poor oxidation resistance of the existing roll rings are solved, achieving higher bonding strength and service life.
Patent Information
- Application Number
- CN202421176524.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The roll rings used in existing high-speed wire rolling mills are costly and have poor oxidation resistance.
It adopts a roller ring design in which a tungsten carbide cladding layer is combined with a carbon steel substrate. The tungsten carbide cladding layer is formed on the outer peripheral surface of the base body through hot melting, and accommodating grooves are provided on the outer peripheral surface to improve the bonding force.
It effectively reduces the manufacturing cost of the roller ring, improves the bonding force between the tungsten carbide cladding layer and the substrate, and enhances the overall strength and service life of the roller ring.
Smart Images
Figure CN222369950U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steel rolling equipment, and in particular relates to a roller ring. Background Art
[0002] As the main equipment in the hot rolling production line of steel, the rolling mill is used to roll the blank into shape. Among them, the roller ring is an important working part of the rolling mill, which uses the pressure generated by a pair or a group of roller rings when rolling to roll the steel. As the main consumables in the high-speed bar rolling industry, the service life and quality of the roller ring have a direct impact on improving product quality and production capacity.
[0003] At present, the roller rings used in high-speed wire rolling mills are all made of tungsten carbide and other hard alloy materials using a static pressure sintering process. The disadvantages of this type of roller ring are poor thermal fatigue resistance, poor oxidation resistance, and high cost. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide a roller ring to solve the technical problems of high cost and poor oxidation resistance of the above-mentioned roller ring.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a roller ring, comprising:
[0006] A base body is arranged in a ring-shaped structure;
[0007] A tungsten carbide cladding layer is hot-melt-formed on the outer peripheral surface of the substrate;
[0008] The outer peripheral surface is provided with a receiving groove for receiving the tungsten carbide cladding layer.
[0009] Furthermore, the receiving groove is in any one of an arc shape, an ellipse shape, a trapezoid shape, a rectangle shape, and a square shape.
[0010] Furthermore, the number of the containing grooves is any one of one, two, three, and four.
[0011] Furthermore, the outer peripheral surface is provided with a receiving portion for receiving the tungsten carbide cladding layer, and a shoulder portion integrally formed with the receiving portion, and the receiving portion and the shoulder portion are combined to form the receiving groove.
[0012] Furthermore, there are two shoulder portions, and the two shoulder portions are respectively arranged on two opposite sides of the accommodating portion.
[0013] Furthermore, the depth of the containing groove along the radial direction of the base body is 2-50 mm.
[0014] Furthermore, the tungsten carbide cladding layer is provided with a pressing groove for rolling steel.
[0015] Furthermore, the pressing groove is flush with the accommodating groove.
[0016] Furthermore, the substrate is a carbon steel part.
[0017] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model avoids the use of tungsten carbide material to prepare the roller ring completely by arranging a tungsten carbide cladding layer on the substrate, thereby effectively reducing the manufacturing cost; the tungsten carbide cladding layer is arranged on the outer peripheral surface of the substrate by hot melting, so that the tungsten carbide cladding layer and the substrate have better bonding force, and the combined structure is denser, the grains are finer, the wear resistance is better, and the fatigue resistance is better; by arranging a receiving groove on the outer peripheral surface of the substrate, the tungsten carbide cladding layer is hot-melted and formed in the receiving groove, thereby further improving the bonding force between the tungsten carbide cladding layer and the substrate, and improving the overall strength and service life of the roller ring.
[0018] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:
[0020] Figure 1 (a) is a schematic diagram of a roller ring structure with an arc-shaped base body proposed in one embodiment of the utility model;
[0021] Figure 1 (b) is a schematic diagram of a roller ring structure with an elliptical base body proposed in an embodiment of the utility model;
[0022] Figure 1 (c) is a schematic diagram of a roller ring structure with a trapezoidal base body proposed in an embodiment of the utility model;
[0023] Figure 1 (d) is a schematic diagram of a roller ring structure with a rectangular base body proposed in an embodiment of the utility model
[0024] Figure 2 A schematic structural diagram of a roller ring with two accommodating grooves proposed in one embodiment of the utility model;
[0025] Figure 3 A schematic structural diagram of a roller ring with a single accommodating groove proposed in one embodiment of the utility model.
[0026] Figure Number:
[0027] 1-matrix;
[0028] 2-tungsten carbide cladding layer;
[0029] 3-accommodating groove; 31-accommodating portion; 32-shoulder portion;
[0030] 4- Press the groove. DETAILED DESCRIPTION
[0031] like Figures 1 to 3 As shown, this embodiment proposes a roller ring, including a substrate 1 and a tungsten carbide cladding layer 2, the substrate 1 is arranged in an annular structure, the tungsten carbide cladding layer 2 is hot-melted and formed on the outer peripheral surface of the substrate 1, and a receiving groove 3 is provided on the outer peripheral surface, and the receiving groove 3 can be used to accommodate the tungsten carbide cladding layer 2. In this way, by arranging the tungsten carbide cladding layer 2 on the substrate 1, it is possible to avoid using tungsten carbide material to prepare the roller ring, which effectively reduces the manufacturing cost; the tungsten carbide cladding layer 2 is arranged on the outer peripheral surface of the substrate 1 by hot melting, so that the tungsten carbide cladding layer 2 and the substrate 1 have a better bonding force, and the combined structure is denser, the grains are finer, the wear resistance is better, and the fatigue resistance is better; by arranging the receiving groove on the outer peripheral surface of the substrate 1, the tungsten carbide cladding layer 2 is hot-melted and formed in the receiving groove 3, so that the bonding force between the tungsten carbide cladding layer 2 and the substrate 1 can be further improved, and the overall strength and service life of the roller ring can be improved.
[0032] Preferably, in the present application, the substrate 1 is a carbon steel part. By setting it as a carbon steel part, it has better toughness than tungsten carbide, effectively avoiding the substrate 1 from cracking during pressure use, and greatly improving the service life of the roller ring. Of course, in this embodiment, according to actual conditions and specific needs, the substrate 1 can also be other materials with better toughness, which is not limited here.
[0033] Preferably, in the present application, the tungsten carbide cladding layer 2 is melted by a high-temperature cladding method such as an ion beam or a laser beam. Through this melting method, the tungsten carbide cladding layer 2 has good bonding with the substrate 1, a dense structure, and the obtained grains are finer and have better wear resistance.
[0034] Preferably, the receiving groove 3 is in any one of an arc shape, an ellipse, a trapezoid, a rectangle, and a square. In the present application, the receiving groove 3 is arranged in an arc shape. By setting the receiving groove 3 in an arc shape, the bonding area between the tungsten carbide cladding layer 2 and the substrate 1 is increased, which is conducive to the subsequent better rolling of the rolled steel. Of course, in the present application, the receiving groove 3 can also be arranged in other shapes, which is not limited here.
[0035] Preferably, the number of the receiving grooves 3 is any one of one, two, three, and four. In the present application, the number of the receiving grooves 3 is two. By setting two receiving grooves 3, a tungsten carbide cladding layer 2 can be set in the two receiving grooves 3, and then two rolled steels can be rolled at the same time, thereby improving the rolling efficiency of the rolled steel. Of course, according to actual conditions and specific needs, if it is necessary to roll and form multiple rolled steels at the same time, multiple receiving grooves 3 can be set accordingly, and the number of receiving grooves 3 is not limited as mentioned above.
[0036] For further information, see Figure 3 As shown, in the present application, a receiving portion 31 and a shoulder portion 32 are provided on the outer peripheral surface, and the receiving portion 31 and the shoulder portion 32 are integrally formed, and the receiving portion 31 and the shoulder portion 32 are combined to form a receiving groove 3. In this way, by providing the receiving portion 31, the tungsten carbide cladding layer 2 can be accommodated therein; by providing the shoulder portion 32, it can be used to bear lateral forces, effectively avoiding cracking of the edge of the tungsten carbide coating layer 2, thereby improving the overall service life of the roller ring.
[0037] Preferably, in the present application, there are two blocking shoulders 32, and the two blocking shoulders 32 are respectively arranged on opposite sides of the accommodating portion 31. In this way, by providing two blocking shoulders 32, the bidirectional lateral force on the roller ring can be effectively avoided.
[0038] Preferably, the depth of the receiving groove 3 along the radial direction of the base 1 is 2-50 mm. Specifically, the depth of the receiving groove 3 can be 2 mm, 10 mm, 20 mm, 30 mm, 40 mm, 50 mm, etc., which is not limited here. Of course, in this embodiment, according to the steel diameter of the rolled steel and the depth of the rolled steel thread, the depth of the receiving groove can be adjusted according to the actual situation, which is not limited here.
[0039] For further information, see Figure 2 As shown, the tungsten carbide cladding layer 2 is also provided with a pressing groove 4. By providing the pressing groove 4, the rolled steel can be placed in the pressing groove 4 to achieve better rolling of the rolled steel. Of course, in the present application, the size of the pressing groove 4 can be adjusted according to the size of the rolled steel.
[0040] Preferably, see Figure 2 As shown, along the radial direction of the base body 1, the pressing groove 4 is flush with the height of the receiving groove 3. In this way, the contact area between the roller ring and the rolled steel can be increased, and the rolling effect can be improved.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A roller ring, characterized in that: include: A base body is arranged in a ring-shaped structure; A tungsten carbide cladding layer is hot-melt-formed on the outer peripheral surface of the substrate; The outer peripheral surface is provided with a receiving groove for receiving the tungsten carbide cladding layer.
2. A roller ring according to claim 1, characterized in that: The receiving groove is in any one of an arc shape, an ellipse, a trapezoid, a rectangle and a square.
3. A roller ring according to claim 2, characterized in that: The number of the containing grooves is any one of one, two, three and four.
4. A roller ring according to claim 1, characterized in that: The outer peripheral surface is provided with a receiving portion for receiving the tungsten carbide cladding layer and a shoulder portion integrally formed with the receiving portion, and the receiving portion and the shoulder portion are combined to form the receiving groove.
5. A roller ring according to claim 4, characterized in that: The number of the shoulder portions is two, and the two shoulder portions are respectively arranged on two opposite sides of the accommodating portion.
6. A roller ring according to claim 1, characterized in that: The depth of the receiving groove along the radial direction of the base body is 2-50 mm.
7. A roller ring according to claim 1, characterized in that: The tungsten carbide cladding layer is also provided with a pressing groove for rolling steel.
8. A roller ring according to claim 7, characterized in that: Along the radial direction of the base body, the pressing groove is flush with the height of the accommodating groove.
9. A roller ring according to claim 1, characterized in that: The substrate is a carbon steel part.