Welding pretreatment method of plate element

Abstract

The present invention relates to the technical field of plate unit pretreatment, and discloses a welding pretreatment method for plate units, comprising intersecting the welding surface of a backing plate with the end face of a U-rib, so that the backing plate protrudes from the end face of the U-rib, and forming a gap between the end face of the backing plate and the panel; welding the end face of the backing plate and the panel and filling the gap; welding the position where the welding surface of the backing plate meets the end face of the U-rib, and forming a continuous weld at the position where the welding surface of the backing plate meets the end face of the U-rib. Its beneficial effects are: by welding the end face of the backing plate and the panel and filling the gap between the backing plate and the panel, this method can reduce the dead angle position between the U-rib and the backing plate, and avoid the situation where impurities such as rust and paint are easily left after the U-rib and the patch are welded; by forming a continuous weld at the position where the welding surface of the backing plate meets the end face of the U-rib, it is convenient for workers to remove impurities such as rust or paint by grinding, and avoid affecting the welding quality of the U-rib patch to the joint.

Description

Technical Field

[0001] The present invention relates to the technical field of plate unit pretreatment, in particular to a welding pretreatment method for a plate unit. Background Art

[0002] In related technologies, panel units consist of panels and U-ribs mounted on them. The U-ribs increase the panels' torsional moment of inertia. Adjacent panels are often joined by welding the U-ribs with inserts, thereby increasing the panel unit area to accommodate practical requirements.

[0003] Due to manufacturing errors in the inlays, U-ribs, and panels, the finished panel elements are susceptible to environmental corrosion. Prolonged outdoor storage or poorly protected coating and adhesive application can easily lead to the accumulation of impurities such as rust and paint in the corners of the panel elements. Due to geometric size and shape limitations, polishing and other methods are difficult to remove impurities in these corners. These impurities can cause complex chemical reactions during U-rib welding, further compromising the quality of the panel elements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the formed plate unit is easily affected by the external environment and corroded.

[0005] In order to solve the above technical problems, the present invention provides a welding pretreatment method for a plate unit, which is applied to a plate unit, wherein the plate unit includes a panel and a U-rib installed on the panel, including:

[0006] intersecting the welding surface of the backing plate with the end surface of the U-rib, so that the backing plate protrudes from the end of the U-rib and forms a gap between the end of the backing plate and the panel;

[0007] welding the end of the backing plate to the panel and filling the gap;

[0008] The positions where the welding surface of the backing plate and the end surface of the U rib meet are welded, and a continuous weld is formed at the positions where the welding surface of the backing plate and the end surface of the U rib meet.

[0009] In the above technical solution, intersecting the welding surface of the backing plate with the end surface of the U-rib specifically includes:

[0010] placing the welding surface of the backing plate on one side of the end surface of the U rib;

[0011] The welding surface and the end surface of the U-rib are welded by spot welding.

[0012] In the above technical solution, the welding surface of the backing plate is the outer side surface of the backing plate.

[0013] In the above technical solution, placing the welding surface of the backing plate on one side of the end surface of the U-rib specifically includes:

[0014] The welding surface of the backing plate is placed on the lower side of the end surface of the U rib.

[0015] In the above technical solution, a receiving cavity communicating with the gap is formed between the backing plate and the panel. Before welding the end of the backing plate to the panel, the method further includes:

[0016] When the interval is greater than 3 mm, a ceramic liner is installed on the inner side of the backing plate, and the ceramic liner separates the interval and the accommodating cavity.

[0017] In the above technical solution, after welding the end of the backing plate and the panel, the method further comprises:

[0018] The ceramic liner is removed.

[0019] In the above technical solution, the welding surface of the backing plate includes a first welding surface, a second welding surface, and a third welding surface that are sequentially connected, and the end surface of the U-rib includes a first end surface, a second end surface, and a third end surface that are sequentially connected. The spot welding of the welding surface and the end surface of the U-rib specifically includes:

[0020] Welding the first welding surface and the first end surface by spot welding;

[0021] spot welding the second welding surface and the second end surface;

[0022] The third welding surface and the third end surface are welded by spot welding.

[0023] In the above technical solution, the length of the end portion of the pad protruding from the U-rib is L1, and the length of the pad is L2, where L2>3L1.

[0024] The above technical solution includes:

[0025] The steel bars are bent and cut according to the inner contour of the U rib to form the pad.

[0026] In the above technical solution, the welding of the position where the welding surface of the backing plate meets the end surface of the U-rib and forming a continuous weld at the position where the welding surface of the backing plate meets the end surface of the U-rib specifically includes:

[0027] Continuous fillet welding is performed on the position where the welding surface of the backing plate meets the end surface of the U rib.

[0028] The above technical solution also includes:

[0029] Grind the welding surface of the backing plate and the end surface of the U rib.

[0030] Compared with the prior art, the welding pretreatment method of the plate unit in the embodiment of the present invention has the following beneficial effects: the pad protrudes from the end of the U rib, providing a welding position for the patch and the U rib; by welding the end of the pad and the panel and filling the gap between the pad and the panel, the method can reduce the dead angle between the U rib and the pad, and avoid the situation where impurities such as rust and paint are easily left after the U rib and the patch are welded; by forming a continuous weld at the position where the welding surface of the pad meets the end face of the U rib, the method can further reduce the dead angle, which is beneficial for the staff to easily remove impurities such as rust or paint through the grinding method, so as to avoid affecting the subsequent welding quality of the U rib patch to the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flow chart of a welding pretreatment method for a plate unit according to an embodiment of the present invention;

[0032] Figure 2 is a flow chart of fixing the backing plate and the U-rib according to an embodiment of the present invention;

[0033] Figure 3 This is a flow chart of spot welding of the welding surface and the end surface according to an embodiment of the present invention;

[0034] Figure 4 is a schematic structural diagram of a plate unit according to an embodiment of the present invention;

[0035] Figure 5 yes Figure 4 A in the middle is a detailed schematic diagram of spot welding the welding surface and the end face;

[0036] Figure 6 yes Figure 5 Detailed diagram of the continuous weld at point A in the middle;

[0037] In the figure, 1, panel; 2, U-rib; 3, pad; 4, ceramic liner. DETAILED DESCRIPTION

[0038] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "inside", "outside", etc. used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be understood that the terms "connected," "connected," "fixed," etc. used in the present invention should be interpreted broadly. For example, the terms may be fixedly connected, detachably connected, or integrated; may be mechanically connected or welded; may be directly connected or indirectly connected through an intermediate medium; may be internal communication between two elements or an interactive relationship between two elements, unless otherwise clearly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, a welding pretreatment method of a plate unit according to a preferred embodiment of the present invention, wherein the plate unit includes a panel 1 and a U-rib 2 mounted on the panel 1, includes:

[0042] S200: intersecting the welding surface of the backing plate 3 with the end surface of the U-rib 2, so that the backing plate 3 protrudes from the end of the U-rib 2, and forming a gap between the end of the backing plate 3 and the panel 1;

[0043] S400: Welding the end of the backing plate 3 to the panel 1 and filling the gap;

[0044] S600 : Welding the position where the welding surface of the backing plate 3 and the end surface of the U rib 2 meet, and forming a continuous weld at the position where the welding surface of the backing plate 3 and the end surface of the U rib 2 meet.

[0045] The backing plate 3 protrudes from the end of the U-rib 2, providing a welding position for the patch and the U-rib 2; by welding the end of the backing plate 3 to the panel 1 and filling the gap between the backing plate 3 and the panel 1, this method can reduce the dead angle between the U-rib 2 and the backing plate 3, and avoid the situation where impurities such as rust and paint are easily left after the U-rib 2 and the patch are welded; by forming a continuous weld at the position where the welding surface of the backing plate 3 meets the end face of the U-rib 2, this method can further reduce the dead angle, thereby facilitating the staff to easily remove impurities such as rust or paint by grinding, and avoid affecting the subsequent welding quality of the U-rib 2 patch to the joint.

[0046] Further, if Figure 2 As shown, the welding surface of the backing plate 3 intersects the end surface of the U rib 2, specifically including:

[0047] S210: placing the welding surface of the backing plate 3 on one side of the end surface of the U rib 2;

[0048] S220: The welding surface and the end surface of the U-rib 2 are welded by spot welding.

[0049] It is understood that the welding surface of the backing plate 3 is placed on one side of the end face of the U-rib 2, providing conditions for spot welding. By spot welding the welding surface to the end face of the U-rib 2, this method can fix the backing plate 3 in a suitable position on the U-rib 2, thereby facilitating the subsequent steps to complete the pretreatment of the U-rib 2 before welding.

[0050] Furthermore, the welding surface of the backing plate 3 is the outer side surface of the backing plate 3 .

[0051] It is understandable that, with the outer side surface of the pad 3 as the welding surface, the staff can directly weld the welding surface of the pad 3 and the end surface of the U rib 2, which can improve the convenience of fixing the pad 3 on the U rib 2.

[0052] Furthermore, the welding surface of the backing plate 3 is placed on one side of the end surface of the U rib 2, specifically including:

[0053] The welding surface of the backing plate 3 is placed on the lower side of the end surface of the U rib 2 .

[0054] It can be understood that the welding surface of the pad 3 is placed on the lower side of the end face of the U rib 2, so that the outer side surface and the end face of the pad 3 form a space for welding the patch, so that the patch can shield the pad 3 to prevent the pad 3 from rusting.

[0055] Further, if Figure 1 As shown, a communicating and spaced accommodation cavity is formed between the backing plate 3 and the panel 1. Before welding the end of the backing plate 3 to the panel 1, the following components are also included:

[0056] S300: When the interval is greater than 3 mm, a ceramic liner 4 is installed on the inner side of the backing plate 3, and the ceramic liner 4 separates the interval and the accommodating cavity.

[0057] It is understood that when the gap is greater than 3 mm, the molten material does not easily cool to form a weld. Installing a ceramic liner on the inner side of the backing plate 3 and separating the gap from the receiving cavity with the ceramic liner 4 can provide a support structure for the molten material, assisting in cooling and forming the molten material, and facilitating the separation of the gap from the receiving cavity. Furthermore, after welding the end of the backing plate 3 to the panel 1, the method further includes: S500: removing the ceramic liner 4.

[0058] Further, if Figure 3 As shown, the welding surface of the backing plate 3 includes a first welding surface, a second welding surface and a third welding surface connected in sequence, and the end surface of the U rib 2 includes a first end surface, a second end surface and a third end surface connected in sequence. The welding surface and the end surface of the U rib 2 are welded by spot welding, specifically including:

[0059] S221: Welding the first welding surface and the first end surface by spot welding;

[0060] S222: Welding the second welding surface and the second end surface by spot welding;

[0061] S223: Weld the third welding surface and the third end surface by spot welding.

[0062] It can be understood that each welding surface and end face are spot welded one by one, so that the welding points generated by spot welding form support points for each welding surface and end face, which is conducive to forming a continuous weld between the welding surface of the pad 3 and the end face of the U rib 2, further reducing the dead angle position, thereby facilitating the staff to conveniently remove impurities such as rust or paint by grinding method, and avoid affecting the welding quality of the subsequent U rib 2 patch to the joint.

[0063] Furthermore, the length of the end portion of the backing plate 3 protruding from the U-rib 2 is L1, and the length of the backing plate 3 is L2, where L2>3L1.

[0064] It can be understood that L2>3L1, which can provide sufficient position for support when forming a continuous weld between the welding surface of the pad 3 and the end face of the U rib 2, thereby facilitating the formation of a continuous weld between the welding surface of the pad 3 and the end face of the U rib 2, further reducing the dead angle position, and thus facilitating the staff to conveniently remove impurities such as rust or paint by grinding, thereby avoiding affecting the welding quality of the subsequent U rib 2 patch to the joint.

[0065] Further, including:

[0066] The steel bar is bent and cut according to the inner contour of the U rib 2 to form the pad 3.

[0067] It can be understood that by bending and cutting the steel bar according to the inner contour line of the U rib 2 to form the pad 3, the gap formed when the welding surface of the pad 3 is connected to the end face of the U rib 2 due to processing errors can be reduced, and the molten material can be avoided from leaking from the above-mentioned gap when a continuous weld is formed at the position where the welding surface of the pad 3 is connected to the end face of the U rib 2.

[0068] Furthermore, the welding process is performed at the position where the welding surface of the backing plate 3 meets the end surface of the U rib 2, and a continuous weld is formed at the position where the welding surface of the backing plate 3 meets the end surface of the U rib 2, specifically including:

[0069] Continuous fillet welding is performed at the position where the welding surface of the backing plate 3 and the end surface of the U-rib 2 come into contact.

[0070] It can be understood that by performing continuous fillet welding on the position where the welding surface of the pad 3 meets the end face of the U-rib 2, a continuous weld can be formed, further reducing the dead angle position, thereby facilitating the staff to conveniently remove impurities such as rust or paint by grinding, thereby avoiding affecting the welding quality of the subsequent U-rib 2 patch to the joint.

[0071] Furthermore, it also includes:

[0072] Grind the welding surface of the backing plate 3 and the end surface of the U rib 2.

[0073] It can be understood that grinding the welding surface of the pad 3 and the end face of the U rib 2 can reduce the gap formed when the welding surface of the pad 3 and the end face of the U rib 2 are connected due to processing errors, and avoid the leakage of molten material from the above-mentioned gap when a continuous weld is formed at the position where the welding surface of the pad 3 and the end face of the U rib 2 are connected.

[0074] In summary, an embodiment of the present invention provides a welding pretreatment method for a plate unit, wherein the pad 3 protrudes from the end of the U-rib 2, providing a welding position for the patch and the U-rib 2; by welding the end of the pad 3 and the panel 1 and filling the gap between the pad 3 and the panel 1, the present method can reduce the dead angle position between the U-rib 2 and the pad 3, and avoid the situation where impurities such as rust and paint are easily left after the U-rib 2 and the patch are welded; by forming a continuous weld at the position where the welding surface of the pad 3 meets the end face of the U-rib 2, the present method can further reduce the dead angle position, thereby facilitating the staff to conveniently remove impurities such as rust or paint by grinding, and avoid affecting the subsequent welding quality of the U-rib 2 patch to the joint.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A welding pretreatment method for a plate unit, applied to a plate unit, wherein the plate unit comprises a panel and a U-rib mounted on the panel, characterized in that: include: intersecting the welding surface of the backing plate with the end surface of the U-rib, so that the backing plate protrudes from the end of the U-rib and forms a gap between the end of the backing plate and the panel; welding the end of the backing plate to the panel and filling the gap; Welding the position where the welding surface of the backing plate meets the end surface of the U rib, and forming a continuous weld at the position where the welding surface of the backing plate meets the end surface of the U rib; placing the welding surface of the backing plate on one side of the end surface of the U rib; spot welding the welding surface and the end surface of the U-rib; The welding surface of the backing plate is the outer side surface of the backing plate; The welding surface of the backing plate is placed on the lower side of the end surface of the U rib.

2. The welding pretreatment method of the plate unit according to claim 1, characterized in that: A receiving cavity communicating with the gap is formed between the backing plate and the panel, and before welding the end of the backing plate to the panel, the method further includes: When the interval is greater than 3 mm, a ceramic liner is installed on the inner side of the backing plate, and the ceramic liner separates the interval and the accommodating cavity.

3. The welding pretreatment method of the plate unit according to claim 2, characterized in that: After welding the end of the backing plate and the panel, the method further comprises: The ceramic liner is removed.

4. The welding pretreatment method of the plate unit according to claim 1, characterized in that: The welding surface of the backing plate includes a first welding surface, a second welding surface, and a third welding surface that are sequentially connected, and the end surface of the U-rib includes a first end surface, a second end surface, and a third end surface that are sequentially connected. The spot welding of the welding surface and the end surface of the U-rib specifically includes: Welding the first welding surface and the first end surface by spot welding; spot welding the second welding surface and the second end surface; The third welding surface and the third end surface are welded by spot welding.

5. The welding pretreatment method of the plate unit according to claim 1, characterized in that: The length of the pad protruding from the end of the U-rib is L1, and the length of the pad is L2, where L2>3L1.

6. The welding pretreatment method of the plate unit according to claim 1, characterized in that: include: The steel bars are bent and cut according to the inner contour of the U rib to form the pad.

7. The welding pretreatment method of a plate unit according to any one of claims 1 to 6, characterized in that: The welding of the position where the welding surface of the backing plate meets the end surface of the U rib and forming a continuous weld at the position where the welding surface of the backing plate meets the end surface of the U rib specifically includes: Continuous fillet welding is performed on the position where the welding surface of the backing plate meets the end surface of the U rib.

8. The welding pretreatment method of a plate unit according to any one of claims 1 to 6, characterized in that: Also includes: Grind the welding surface of the backing plate and the end surface of the U-rib.

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