Renovating process for glass fiber reinforced plastic ship

Abstract

The invention relates to a renovation process for a glass fiber reinforced plastic ship, and is applied to the field of ships. Comprising the following steps; s1, acquiring the surface state of the damaged area; s2, dirt removal is conducted, specifically, greasy dirt and impurities on the surface of the ship body are treated through a shot blasting machine, and preliminary cleaning of the ship body is achieved; s3, repairing the ship body; s4, after repairing, a grinding machine is used for grinding; and S5, the polished repairing area is coated with a gel coat. According to the renovating process for the glass fiber reinforced plastic ship, repairing and renovating of the ship body can be completed, and the reliability of the two sides of the damaged surface and the overall consistency are guaranteed.

Description

Technical Field

[0001] The present application relates to the field of ships, and in particular to a refurbishment process for fiberglass reinforced plastic ships. Background Art

[0002] Ocean is the general term for the most extensive water bodies on Earth. The Earth's surface is divided into vast waters that are interconnected by the continents. The central part of the ocean is called the ocean, and the edge is called the sea. They communicate with each other to form a unified body of water. The total area of ​​the ocean on Earth is about 360 million square kilometers, accounting for about 71% of the Earth's surface area. The average water depth is about 3,795 meters, and the effective area is 5-10 times that of the land. The shipping industry and the marine industry have become an indispensable pillar of the world's economic development today.

[0003] Ships made of steel sail in the vast ocean for many years. The collision of the hull will inevitably cause damage or cracks to the hull surface. At the same time, in the sea, the hull surface will be corroded to varying degrees by various corrosive media, causing the hull surface to gradually lose its previous luster.

[0004] In order to solve the above problems, the present application provides a refurbishment process for fiberglass reinforced plastic boats. Summary of the invention

[0005] In order to improve the above problems, the present application provides a refurbishment process for a fiberglass reinforced plastic ship. The refurbishment process for a fiberglass reinforced plastic ship provided in the present application adopts the following technical solution: comprising the following steps; S1: Obtain the surface condition of the damaged area; S2: Decontamination, use a shot blasting machine to treat the oil and impurities on the surface of the hull to achieve preliminary cleaning of the hull; S3: Hull repair; S4: After repair, grind with a grinder; S5: Apply gel coat to the repaired area after grinding; For the hull repair of S3, the steps are S31: Surround the damaged area and dig out a stepped repair area; S32: Grind along the edge line of the repair area; S33: Clean the original coating after grinding; S34: Prepare adhesive; S35: Apply the adhesive obtained in S34 to the repair area with a brush; S35: Lay a layer of fiberglass cloth on the repair area, and the fiberglass cloth covers the damaged area; S36: Use a brush to brush a layer of adhesive on the surface of the fiberglass again, and cover the adhesive with a layer of fiberglass cloth; S37: According to the method of S36, repeatedly cover the fibercloth according to the damage to complete the repair.

[0006] Optionally, for the adhesive in S34, at 20°C-30°C, according to the weight parts, first put 100 parts of epoxy resin into a stirring container, then put 20 parts of dibutyl phthalate into the stirring container, then put 100 parts of alumina powder into the stirring container, and finally put 11 parts of diethylenetriamine into the stirring container, and finally stir evenly to obtain the adhesive.

[0007] Optionally, for the glass fiber cloth in S36, the glass fiber material coated with resin is stacked layer by layer, and resin is applied between each layer to make it saturated.

[0008] Optionally, for the patching area in S31, the following steps are included: a. Get the original number of coating layers n in the damaged area; b. Divide the original coating into n repair sub-areas; c. Label the patched sub-areas, with the innermost layer labeled 1 and the outermost layer labeled n; d. From the innermost layer 1 to the outermost layer n, it is distributed in a stepped manner.

[0009] Optionally, the innermost layer of the repair area is in contact with the hull outer plate.

[0010] Optionally, the width of the repair sub-area is between 3 cm and 8 cm.

[0011] Optionally, the gel coat thickness in S5 is between 0.2 mm and 0.4 mm.

[0012] Optionally, wax the hull surface after completing the repair.

[0013] Optionally, the grinder includes a mounting block, a handheld part, a control disk, a fixed plate, a driving motor, a driving wheel, a driven wheel, a grinding belt, a rotating plate and a tension spring, the handheld part is fixedly mounted on the bottom of the mounting block, the control disk is mounted on the side of the mounting block, an integrated circuit board is provided in the mounting block, the control disk is electrically connected to the integrated circuit board, the fixed plate is mounted on the top of the mounting block, the driving motor is mounted on one end of the fixed plate, the driving motor is electrically connected to the integrated circuit board, a limiting hole is provided on the fixed plate, a rotating plate is provided at one end of the fixed plate, the fixed plate is rotatably connected to the rotating plate, a connecting hole is provided at one end of the rotating plate, two ends of the tension spring are respectively placed in the connecting hole and the limiting hole, the other end of the rotating plate is connected to a rotating shaft, a driven wheel is sleeved on the outer side of the rotating shaft, the driving wheel is sleeved on the output shaft of the driving motor, and the driving wheel and the driven wheel are connected through the grinding belt.

[0014] Optionally, five limiting holes are provided and two connecting holes are provided.

[0015] In summary, this application has the following beneficial effects: 1. The present invention can complete the repair and renovation of the hull through operations such as damaged area acquisition, decontamination, hull repair, grinding and gel coat application, thereby ensuring the reliability and overall consistency of both sides of the damaged surface.

[0016] 2. The present invention uses special grinding equipment to grind and clean the stepped damaged area, which can improve the adhesion between the repair layer and the original coating and improve the protective effect of the repair.

[0017] 3. The present invention uses multiple layers of glass fiber to form a repair layer, and the thickness of the repair layer is uniform, thereby ensuring the strength of the repaired hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the renovation process flow of this application; Figure 2 This is a schematic diagram of the repair area structure of this application; Figure 3 A three-dimensional structural diagram of the grinding machine of the present application; Figure 4 It is a side view of the grinding machine of this application.

[0019] Figure numerals: 1. mounting block; 2. hand-held part; 3. control panel; 4. fixing plate; 5. driving motor; 6. driving wheel; 7. driven wheel; 8. grinding belt; 9. rotating plate; 10. tension spring; 11. limiting hole; 12. connecting hole; 13. rotating shaft. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The present application embodiment discloses a refurbishment process for a fiberglass reinforced plastic boat. Figure 1 and Figure 2, a renovation process for a fiberglass reinforced plastic boat, used for repairing and renovating the damaged area of ​​the outer hull of the fiberglass reinforced plastic boat, characterized in that it includes the following steps: S1: obtaining the surface state of the damaged area; S2: decontamination, using a shot blasting machine to treat the oil and impurities on the surface of the hull to achieve preliminary cleaning of the hull; S3: hull repair; S4: after repair, grinding with a grinder; S5: brushing gel coat on the polished repair area; for the hull repair in S3, the steps are S31: surrounding the damaged area and digging out a stepped repair area; S3 2: Grind along the edge line of the repair area; S33: Clean the original coating after grinding; S34: Prepare adhesive; S35: Apply the adhesive obtained in S34 to the repair area with a brush; S35: Lay a layer of glass fiber cloth on the repair area, and the glass fiber cloth covers the damaged area; S36: Use a brush to brush a layer of adhesive on the surface of the glass fiber again, and cover the adhesive with a layer of glass fiber cloth; S37: According to the method of S36, repeatedly cover the fiber cloth according to the damage to complete the repair.

[0022] Reference Figure 1 and Figure 2 For the adhesive in S34, at 20°C-30°C, according to the weight parts, first put 100 parts of epoxy resin into a stirring container, then put 20 parts of dibutyl phthalate into the stirring container, then put 100 parts of alumina powder into the stirring container, and finally put 11 parts of diethylenetriamine into the stirring container, and finally stir evenly to obtain the adhesive.

[0023] Reference Figure 1 and Figure 2 , for the glass fiber cloth in S36, the glass fiber material coated with resin is stacked layer by layer, and resin is applied between each layer to make it saturated.

[0024] For the repair area in S31, the following steps are included: a. Obtain the original number of coating layers n in the damaged area; b. Divide the original coating into n repair sub-areas; c. Label the repair sub-areas, with the innermost layer labeled 1 and the outermost layer labeled n; d. Distribute in a stepped stack from the innermost layer 1 to the outermost layer n.

[0025] The innermost layer of the repair area is in contact with the hull outer plating.

[0026] The width of the repair sub-area is between 3 cm and 8 cm.

[0027] The thickness of the gel coat in S5 is between 0.2 mm and 0.4 mm. After the repair is completed, the hull surface is waxed.

[0028] Reference Figure 3 and Figure 4The grinder includes a mounting block 1, a handheld part 2, a control panel 3, a fixed plate 4, a drive motor 5, a driving wheel 6, a driven wheel 7, a grinding belt 8, a rotating plate 9 and a tension spring 10. The handheld part 2 is fixedly mounted on the bottom of the mounting block 1, the control panel 3 is mounted on the side of the mounting block 1, an integrated circuit board is arranged in the mounting block 1, and the control panel 3 is electrically connected to the integrated circuit board. The fixing plate 4 is mounted on the top of the mounting block 1, and the drive motor 5 is mounted on one end of the fixing plate 4. The drive motor 5 is connected to the integrated circuit board. The plates are electrically connected, a limiting hole 11 is provided on the fixed plate 4, a rotating plate 9 is provided at one end of the fixed plate 4, the fixed plate 4 is rotatably connected to the rotating plate 9, a connecting hole 12 is provided at one end of the rotating plate 9, the two ends of the tension spring 10 are respectively placed in the connecting hole 12 and the limiting hole 11, the other end of the rotating plate 9 is connected to a rotating shaft 13, a driven wheel 7 is sleeved on the outer side of the rotating shaft 13, the driving wheel 6 is sleeved on the output shaft of the driving motor 5, and the driving wheel 6 and the driven wheel 7 are connected through the grinding belt 8.

[0029] Hold the hand-held part 2 with your hand, operate the control panel 3 to start the grinder, the driving motor 5 rotates to drive the driving wheel 6 to rotate, the driving wheel 6 rotates to drive the driven wheel 7 to rotate through the grinding belt 8, the grinding belt 8 grinds the hull, and the small driven wheel 7 can grind the repair area.

[0030] When replacing the grinding belt, remove the tension spring, and the driven wheel that tightens the grinding belt 8 loses the tension of the tension spring. At this time, the grinding belt 8 can be replaced. After the replacement is completed, reinstall the tension spring 10 so that the grinding belt 8 is tightened again to continue to complete the grinding work.

[0031] Reference Figure 3 and Figure 4 ,,There are five limiting holes 11 and two connecting holes 12.

[0032] Different combinations of limiting holes 11 and connecting holes 12 can use different grinding belts 8 to adapt to different grinding conditions.

[0033] The implementation principle of a refurbishment process for a fiberglass reinforced plastic boat in the present application embodiment is as follows: The present invention can complete the repair and renovation of the hull through operations such as damaged area acquisition, decontamination, hull repair, grinding and gel coat application, thereby ensuring the reliability of both sides of the damaged surface and the overall consistency.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A refurbishment process for a fiberglass reinforced plastic boat, used to repair and refurbish the damaged area of ​​the outer hull of the fiberglass reinforced plastic boat, characterized in that: The steps include: S1: Obtain the surface state of the damaged area; S2: Decontamination, use a shot blasting machine to treat the oil and impurities on the surface of the hull to achieve preliminary cleaning of the hull; S3: Hull repair; S4: After repair, grind with a grinder; S5: Apply gel coat to the repaired area after grinding; For the hull repair of S3, the steps are S31: surround the damaged area and dig out a stepped repair area; S32: grind along the edge line of the repair area; S33: clean the original coating after grinding; S34: prepare the adhesive; S35: use a brush to apply the adhesive obtained in S34 on the repair area; S35: lay a layer of glass fiber cloth on the repair area, and the glass fiber cloth covers the damaged area; S36: use a brush to brush a layer of adhesive on the surface of the glass fiber again, and cover the adhesive with a layer of glass fiber cloth; S37: According to the method of S36, repeatedly cover the fiber cloth according to the damage to complete the repair.

2. A refurbishment process for a fiberglass reinforced plastic boat according to claim 1, characterized in that: For the adhesive in S34, at 20°C-30°C, according to the weight parts, first put 100 parts of epoxy resin into a stirring container, then put 20 parts of dibutyl phthalate into the stirring container, then put 100 parts of alumina powder into the stirring container, and finally put 11 parts of diethylenetriamine into the stirring container, and finally stir evenly to obtain the adhesive.

3. A refurbishment process for a fiberglass reinforced plastic ship according to claim 2, characterized in that: For the glass fiber cloth in S36, the glass fiber material coated with resin is stacked layer by layer, and resin is applied between each layer to make it saturated.

4. The refurbishment process for a fiberglass reinforced plastic ship according to claim 3, characterized in that: For the patching area in S31, the following steps are included: a. Get the original number of coating layers n in the damaged area; b. Divide the original coating into n repair sub-areas; c. Label the patched sub-areas, with the innermost layer labeled 1 and the outermost layer labeled n; d. From the innermost layer 1 to the outermost layer n, it is distributed in a stepped manner.

5. The refurbishment process for a fiberglass reinforced plastic ship according to claim 4, characterized in that: The innermost layer of the repair area is in contact with the hull outer plating.

6. A refurbishment process for a fiberglass reinforced plastic ship according to claim 5, characterized in that: The width of the repair sub-area is between 3 cm and 8 cm.

7. A refurbishment process for a fiberglass reinforced plastic ship according to claim 6, characterized in that: The thickness of the gel coat in S5 is between 0.2 mm and 0.4 mm.

8. A refurbishment process for a fiberglass reinforced plastic boat according to claim 7, characterized in that: After the repair is completed, the hull surface is waxed.

9. A refurbishment process for a fiberglass reinforced plastic boat according to claim 1, characterized in that: The grinding machine comprises a mounting block (1), a handheld portion (2), a control panel (3), a fixing plate (4), a driving motor (5), a driving wheel (6), a driven wheel (7), a grinding belt (8), a rotating plate (9) and a tension spring (10). The handheld portion (2) is fixedly mounted on the bottom of the mounting block (1), the control panel (3) is mounted on the side of the mounting block (1), an integrated circuit board is arranged inside the mounting block (1), the control panel (3) is electrically connected to the integrated circuit board, the fixing plate (4) is mounted on the top of the mounting block (1), the driving motor (5) is mounted on one end of the fixing plate (4), and the driving motor (5) is electrically connected to the integrated circuit board. The circuit board is electrically connected, a limiting hole (11) is provided on the fixed plate (4), a rotating plate (9) is provided at one end of the fixed plate (4), the fixed plate (4) is rotatably connected to the rotating plate (9), a connecting hole (12) is provided at one end of the rotating plate (9), two ends of the tension spring (10) are respectively placed in the connecting hole (12) and the limiting hole (11), the other end of the rotating plate (9) is connected to a rotating shaft (13), a driven wheel (7) is sleeved on the outer side of the rotating shaft (13), the driving wheel (6) is sleeved on the output shaft of the driving motor (5), and the driving wheel (6) and the driven wheel (7) are connected via the grinding belt (8).

10. A refurbishment process for a fiberglass reinforced plastic boat according to claim 9, characterized in that: The number of the limiting holes (11) is 5, and the number of the connecting holes (12) is 2.

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