A kind of deslagging tool for solving the surface slag of steel plate after repair welding

Abstract

This utility model relates to a slag removal tool for cleaning weld slag on the surface of steel plates after repair welding. It belongs to the fields of steel metallurgical quality control technology and production safety. The tool includes a slag removal body and a gripping part, with the gripping part disposed on the surface of the slag removal body. The slag removal body has a square structure, with one lower end extending outwards to form a bevel, and the side with the bevel is recessed to form a receiving groove. The gripping part has an arched structure, with a rubber tube fitted onto it. This tool has a simple structure, is easy to use and maintain, greatly reduces the time spent cleaning slag after repair welding, increases work efficiency, reduces the outflow of uncleaned weld slag, reduces quality issues caused by secondary pitting defects at the weld point, reduces damage to the steel plate surface, and meets on-site production needs.

Description

Technical Field

[0001] This utility model relates to a slag removal tool, specifically a slag removal tool for removing welding slag from the surface of steel plates after repair welding, belonging to the fields of iron and steel metallurgical quality control technology and production safety. Background Technology

[0002] As steel mills expand their product specifications for medium and heavy plates and coils, the proportion of ultra-wide and ultra-long steel plates in extreme specifications is gradually increasing. However, the production of these extreme specification steel plates has also brought new problems: 1. The uncertainty of plate shape during production leads to more uncontrolled surface quality of steel plates, resulting in more surface defects and greater quality cost losses. Rescuing steel plates has become an unavoidable measure; 2. The increase in the weight of individual steel plates leads to greater production cost losses for each steel plate that needs to be re-judged. In order to control production costs, production lines have to take measures to salvage some defective plates with lower requirements.

[0003] To address the issue of reclassification due to minor surface defects, the medium and heavy plate and coil plant, through reviewing relevant materials and conducting gradual experiments, ultimately determined to use welding repair to salvage steel plates with less stringent surface requirements. However, during the salvage process, it was discovered that cleaning the weld slag was extremely time-consuming and could not keep up with the on-site production speed. This was especially true when the defect area was large, as the welding time was long and a lot of weld slag would splatter in all directions. For example, when repairing a defect with a diameter of 5-10mm, approximately 10-15 weld slag fragments would fly onto the surrounding plate surface. The longer the welding time, the more weld slag fragments would appear. Each weld fragment required more than 30 seconds to grind with a grinding machine, and even using a hammer to knock it off would take about 10 seconds. Moreover, hammering could not clean it completely and might create new shallow pits (less than 0.2mm).

[0004] Patent CN201889571U describes a metal slag removal tool, comprising a shovel body, a connecting handle, and a grip. The operator holds the grip and uses the angled surface at the front of the tool to clean the molten slag from the edge of a steel plate. The 45° angle makes it easier to remove the molten slag from the steel plate. The tool is made of steel and is not easily damaged. Furthermore, its small size makes it easy to operate. However, when cleaning flat steel plates, the operator needs to bend over and bring the shovel body horizontally against the steel plate for slag removal. Insufficient contact can damage the steel plate surface, making it inconvenient to use. Additionally, the slag removed during the cleaning process rolls on the steel plate surface, causing further friction and damage.

[0005] Therefore, developing a slag removal tool that can solve the problem of weld slag in repair welding has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a slag removal tool for steel plate after repair welding. The tool has a simple structure, is easy to use and maintain, greatly reduces the time spent on slag removal after repair welding, increases work efficiency, reduces the outflow of uncleaned slag, reduces quality loss due to secondary pitting defects caused by weld points, reduces damage to the surface of steel plates, and meets the needs of on-site production.

[0007] In order to solve the above technical problems, this utility model provides a slag removal tool for removing welding slag from the surface of a steel plate after repair welding, including a slag removal body and a gripping part, wherein the gripping part is disposed on the surface of the slag removal body;

[0008] The slag removal body has a block structure. The lower end of one side of the slag removal body extends outward to form a bevel. The side of the slag removal body with the bevel is recessed to form a receiving groove.

[0009] The grip has an arched structure and a rubber tube is fitted onto it.

[0010] The further defined technical solution of this utility model is:

[0011] Furthermore, in the aforementioned slag removal tool for removing weld slag from the steel plate surface after repair welding, the thickness of the slag removal body is 15-20mm.

[0012] Technically, this utility model strictly limits the thickness of the slag-removing body. If the thickness is too thin, the body will have low mass and inertia and will not be able to remove the welding slag. If the thickness is too thick, it will be too heavy to hold and inconvenient to use. Controlling the appropriate thickness ensures quality and makes it more convenient and easier to operate.

[0013] In the aforementioned slag removal tool for removing weld slag from the steel plate after repair welding, the bottom of the bevel is flush with the bottom of the slag removal body, and the bevel angle is 45°.

[0014] Technically, this utility model has a beveled edge on one side of the slag removal body. This is to allow the slag removal body to better remove welding slag when cleaning the surface of the steel plate. It is also to cooperate with the set receiving groove. The welding slag acts as a bridge on the beveled edge and rolls into the receiving groove for collection during the pushing and cleaning process. This makes it convenient to use and collect.

[0015] In the aforementioned slag removal tool for removing weld slag from the steel plate surface after repair welding, the highest point of the upper end of the inclined side is located in the middle of one side of the receiving groove, and the area of ​​the receiving groove accounts for one-third of the area of ​​the slag removal body.

[0016] Technical advantages: In this invention, the height of the inclined side is matched with the receiving groove, and the highest point of the inclined side is located in the middle of the receiving groove on that side, which facilitates a certain amount of jumping when the welding slag rolls down the inclined side. The upper end of the receiving groove is higher than the highest point of the inclined side, so the welding slag can smoothly enter the receiving groove. The slag removal body is pushed by the staff to remove the slag. The receiving groove needs to have a certain depth to prevent the welding slag collected during the shaking process from shaking out of the receiving groove, thus ensuring good stability.

[0017] The aforementioned slag removal tool for cleaning slag from the surface of steel plates after repair welding has a holding part made of a 5mm diameter steel wire.

[0018] The aforementioned slag removal tool for cleaning the weld slag on the surface of steel plates after repair welding has several semi-circular rubber protrusions evenly distributed on the rubber tube.

[0019] In terms of technical benefits, this utility model has raised points on the rubber tube, which facilitates further friction and makes it easier for the operator to hold the tool stably. The raised points can also massage the operator's palms, which is ergonomic and more comfortable.

[0020] The beneficial effects of this utility model are:

[0021] In this utility model, the inclined side and the receiving groove complement each other in the slag removal body. After the inclined side removes the welding slag, the receiving groove collects it well, effectively removing the welding slag while preventing the rolling welding slag from damaging the steel plate surface again.

[0022] This utility model allows operators to place it on the surface of a steel plate without needing to adjust the angle. When compared with the slag removal tool of this utility model, a hammer, and a grinder, this tool can clean all the welding slag (taking 10 pieces as an example) in just 5 seconds, while the hammer takes about 1 minute and does not clean it completely, and the grinder takes 5 minutes to clean it completely. The slag removal tool is more practical in comparison.

[0023] This utility model provides a slag removal tool for steel plates after repair welding. To address the issue of reassessment due to minor surface defects, medium and heavy plate and coil factories often use repair welding to salvage steel plates with less stringent surface requirements. However, slag removal during this process is time-consuming and cannot keep pace with production speeds. To solve this problem, this slag removal tool was invented. Workers simply need to grasp the handle and push it against the steel plate surface to thoroughly remove the slag within seconds, leaving no residue. This prevents secondary pitting defects caused by residual slag after repair welding, thus avoiding corresponding quality and cost losses. The tool is made from recycled samples, utilizing waste materials and is not easily damaged. Furthermore, its small size makes it easy to operate. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the structure of the slag removal tool for the steel plate surface after repair welding, according to an embodiment of the present invention.

[0025] Figure 2 This is a top view of the slag removal tool for steel plate after repair welding, according to an embodiment of the present invention.

[0026] Figure 3 This is a side view of a tool for cleaning weld slag from the surface of a steel plate after repair welding, according to an embodiment of this utility model.

[0027] Figure 4 This is a structural diagram illustrating the use of a slag removal tool for steel plate after repair welding, as described in this embodiment of the present invention.

[0028] In the diagram: 1-Slag removal body, 2-Holding part, 3-Beveled side, 4-Receiving groove, 5-Rubber tube. Detailed Implementation Example 1

[0029] This embodiment provides a slag removal tool for removing weld slag from the surface of a steel plate after repair welding. (See attached document.) Figure 1-3 The slag removal body 1 and the gripping part 2 are provided on the surface of the slag removal body 1. The slag removal body 1 is a waste sample of a steel plate with a thickness of 15-20mm and a length and width of 150×100mm. The gripping part 2 is a steel wire with a diameter of 5mm. The steel wire is made of low carbon steel, which is not easily deformed after bending and is firmly welded. The two ends of the steel wire are welded to the slag removal body to form an arch.

[0030] The slag removal body 1 has a block structure. The lower end of one side of the slag removal body 1 extends outward to form a sloping side 3. The bottom of the sloping side 3 is flush with the bottom of the slag removal body 1. The sloping side 3 has an inclination angle of 45°. The side of the slag removal body 1 with the sloping side 3 is recessed to form a receiving groove 4. The highest point of the upper end of the sloping side 3 is located in the middle of the receiving groove 4 on this side. The area of ​​the receiving groove 4 accounts for one-third of the area of ​​the slag removal body 1.

[0031] The grip part 2 has an arched structure, and a rubber tube 5 is fitted on the grip part 2. Several semi-circular rubber protrusions are evenly distributed on the rubber tube 5.

[0032] For specific implementation, please refer to Figure 4 The tool is placed on the surface of a steel plate. The operator holds the grip and pushes it a few times to completely remove the weld slag from the steel plate surface within seconds. After being pried up, the weld slag rolls into the receiving groove under the action of the inclined side, leaving no weld slag on the surface of the steel plate. This avoids secondary cratering defects caused by residual weld slag after repair welding, thus avoiding corresponding quality cost losses. Holding the tool on the rubber sleeve of the steel wire is more comfortable.

[0033] This utility model tool is portable and lightweight, and its cleaning effect is obvious. Compared with cleaning tools such as hammers or polishers, it saves both time and effort.

[0034] This invention is mainly applied to repairing defects such as deep pits, pits, and cracks in steel plates produced during steel rolling. During the repair welding process, weld slag splatters around the defects, and cleaning it after solidification is difficult. Failure to clean it properly can lead to new pits and substandard steel plate surface quality. Therefore, a portable slag removal tool has been invented. It is easy to carry and use, lightweight, and provides significant slag removal. Compared to tools like hammers or grinders, it saves both time and effort, quickly removing weld slag from the steel plate surface.

[0035] This utility model tool is widely used in the process of steel plate repair welding. The tool is simple to make and structure and easy to maintain, which greatly reduces the time spent on slag removal after repair welding and increases work efficiency.

[0036] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A slag removal tool for removing weld slag from the surface of a steel plate after repair welding, characterized in that: It includes a slag-cleaning body (1) and a gripping part (2), wherein the gripping part (2) is disposed on the surface of the slag-cleaning body (1); The slag removal body (1) has a block structure. The lower end of one side of the slag removal body (1) extends outward to form a bevel (3). The side of the slag removal body (1) with the bevel (3) is recessed to form a receiving groove (4). The grip (2) has an arched structure, and a rubber tube (5) is fitted on the grip (2).

2. The slag removal tool for removing weld slag from the surface of a steel plate after repair welding, as described in claim 1, is characterized in that: The thickness of the slag removal body (1) is 15-20 mm.

3. The slag removal tool for removing weld slag from the surface of a steel plate after repair welding, as described in claim 1, is characterized in that: The bottom of the inclined side (3) is flush with the bottom of the slag removal body (1), and the inclination angle of the inclined side (3) is 45°.

4. The slag removal tool for removing weld slag from the surface of a steel plate after repair welding, as described in claim 1, is characterized in that: The highest point of the upper end of the inclined side (3) is located in the middle of one side of the receiving tank (4), and the area of ​​the receiving tank (4) accounts for one-third of the area of ​​the slag removal body (1).

5. The slag removal tool for removing weld slag from the surface of a steel plate after repair welding, as described in claim 1, is characterized in that: The gripping part (2) is a steel wire with a diameter of 5 mm.

6. The slag removal tool for removing weld slag from the surface of a steel plate after repair welding, as described in claim 1, is characterized in that: The rubber tube (5) has several semi-circular rubber protrusions evenly distributed on it.

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