New shipbuilding coating construction procedure
Through phased coating construction procedures and strict surface treatment methods, the problem of unstable coating quality in ship coating is solved, and the high-quality completion of underwater cabins and the entire ship coating is achieved, ensuring the stability of the ship delivery status and the compliance of the coating quantity.
Patent Information
- Application Number
- CN202410178789.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-15
- Publication Date
- 2025-08-15
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the existing ship painting construction process, there are problems such as unstable coating quality and incomplete handling of structural defects, especially in the underwater cabin and open-air deck areas, which are difficult to meet high quality standards.
The staged coating construction procedures are adopted, including pretreatment of the steel plates, staged coating, underwater compartment coating in the ship platform stage, full-ship coating in the dock outfit stage, and open-air deck coating before ship trial sailing to ensure that the coating quality of each stage meets the standards, and surface treatment methods such as flame cleaning, grinding, sandblasting, water jetting, wooling, cleaning, etc. are used, combined with temporary protection measures.
The stability and quality of the ship coating process have been improved, ensuring high-quality completion of underwater cabins and the entire ship coating, meeting the requirements of ship delivery status, and the coating volume reaches 100%.
Abstract
Description
Technical Field
[0001] The present invention relates to the field of painting, and in particular to a painting construction procedure for a ship. Background Art
[0002] With the continuous advancement and development of China's heavy industry, the shipbuilding industry has also achieved brilliant growth in the past few decades. This solution provides a stable and quality-assured ship coating construction procedure for the overall shipbuilding technology. Summary of the Invention
[0003] New ship painting construction procedures.
[0004] Specific implementation method (the following ABCDE are the significant features of the new invention process, including notes) The original steel plate is pre-treated in the assembly line (applying shop primer), and then the steel plate is bent, cut, welded and other operations are performed to make the segmented In the segmentation stage, after removing relevant structural defects (especially those affecting Painting Construction and quality of structural defects, such as: pores, undercuts, welding slag, sharp edges, etc.), most of the sections (not less than 60%) are painted (you can choose to complete the coating or Temporary protection ) During the slipway / dock phase, most (not less than 60%) of the underwater compartments and hull outer plates will be painted. underwater compartment During the outfitting phase at the dock, all areas of the ship except the open deck will be painted. After this phase, the total amount of coating completed will be no less than 90% of the total coating amount. Before / after the sea trial / before delivery, the entire ship's open deck and the remaining unfinished areas are subjected to final painting treatment, with 100% coating completion to achieve the delivery state. Whether to carry out partial renovation before departure depends on the real-time ship condition at the time of delivery and the requirements of the on-site shipowner.
[0005] Coating: This refers to the coating protection of steel plates. It consists of three parts: surface treatment (of the substrate, i.e., the part to be coated), coating application, and protection before coating formation. These three parts can be represented by three other stages: A. Achieving coating application conditions; B. Coating application and completion of the coating; C. Enabling the coating to reach service status after application. Application methods specifically refer to all suitable application methods for various types of liquid coatings, powder coatings, metallic coatings, and other related coatings. Surface treatment: Specifically refers to the flame cleaning, grinding, roughening, sandblasting, water jetting, water washing, cleaning, dust removal, degreasing, pickling, passivation, etc. of the steel plate, damaged coating, coating that has exceeded the recoating interval, and other areas that need to be painted, all of which meet the requirements of the paint application and are acceptable. Flame cleaning: refers to the A FI level, B FI level, CFI level, D FI level specified in GB / ISO / SSPC / NACE / AS / JIS / BS standards or other corresponding equivalent standards Polishing: refers to ST1, ST2, ST3 or other equivalent standards specified in GB / ISO / SSPC / NACE / AS / JIS / BS standards Sand blasting: refers to the SA1, SA2, SA21 / 2, and SA3 grades specified in GB / ISO / SSPC / NACE / AS / JIS / BS standards or other corresponding equivalent standards Water jet / water cleaning: refers to the WJ / DC standard specified in GB / ISO / SSPC / NACE / AS / JIS / BS or other corresponding equivalent standards Roughening: refers to an on-site construction operation that feathers and layers the coating Cleanliness, dust removal, oil removal and other cleanliness indicators: Refers to the standards specified in GB / ISO / SSPC / NACE / AS / JIS / BS or other corresponding equivalent standards Pickling and passivation: Refers to the standards specified in GB / ISO / SSPC / NACE / AS / JIS / BS or other corresponding equivalent standards Temporary protection: refers specifically to any coating system that can temporarily protect the substrate and requires further surface treatment of the area in the future to completely complete the requirements of the area / a method of formally applying fuel or other oils Underwater compartment: specifically refers to the independent / continuous compartment located below the light / heavy load waterline of the ship.
Claims
1. The original steel plate is pre-treated on the assembly line (applying shop primer), and then the steel plate is bent, cut, welded and other operations are performed to make segments.
2. In the segmentation stage, after removing relevant structural defects (especially those affecting Painting Construction and quality of structural defects, such as: pores, undercuts, welding slag, sharp edges, etc.), most of the sections (not less than 60%) are painted (you can choose to complete the coating or Temporary protection ).
3. Complete most (not less than 60%) of the underwater cabins and hull outer plate painting operations during the slipway / dock stage. The majority here refers to Underwater compartment.
4. During the outfitting stage at the dock, all areas of the ship except the open deck will be painted. After this stage, the total amount completed will be no less than 90% of the total painting amount.
5. Before / after the sea trial / before delivery, the entire ship's open deck and the remaining unfinished areas shall be subjected to final painting treatment, with 100% coating completion to achieve the delivery state. Whether to carry out partial renovation before departure depends on the real-time ship condition at the time of delivery and the requirements of the on-site shipowner. The black underlined text notes: Coating: This refers to the coating protection applied to steel plates. It consists of three parts: surface preparation (of the substrate, i.e., the area to be coated), coating application, and pre-coating protection. These three parts can be represented by three other stages: A. Achieving coating application conditions; B. Applying the coating and completing the coating; and C. Enabling the coating to reach serviceability. Application methods specifically include all suitable application methods for various liquid coatings, powder coatings, metallic coatings, and other related coatings. Surface treatment: specifically refers to the flame cleaning / grinding / roughening / sandblasting / water jetting / water washing / cleaning / dust removal / oil removal / pickling, passivation, etc. of the steel plate / damaged coating / coating that has exceeded the recoating interval, etc., which are required to meet the requirements of coating application and are acceptable. Flame cleaning: refers to the A FI level, B FI level, C FI level, D FI level specified in GB / ISO / SSPC / NACE / AS / JIS / BS standards or other corresponding equivalent standards; Polishing: refers to ST1, ST2, ST3 or other equivalent standards specified in GB / ISO / SSPC / NACE / AS / JIS / BS standards; Sand blasting: refers to SA1, SA2, SA21 / 2, and SA3 specified in GB / ISO / SSPC / NACE / AS / JIS / BS standards or other corresponding equivalent standards; Water jetting / water cleaning: refers to the WJ / DC standard specified in GB / ISO / SSPC / NACE / AS / JIS / BS or other corresponding equivalent standards; Nailing: refers to an on-site construction operation that feathers and layers the coating; Cleanliness indexes such as cleaning, dust removal, and oil removal refer to the standards specified in GB / ISO / SSPC / NACE / AS / JIS / BS or other corresponding equivalent standards; Pickling and passivation: Refers to the standards specified in GB / ISO / SSPC / NACE / AS / JIS / BS or other corresponding equivalent standards Temporary protection: refers specifically to any coating system that can temporarily protect the substrate and requires re-surface treatment of the area in the future to completely meet the requirements of the area / a method of formally applying fuel oil or other types of oil; Underwater compartment: specifically refers to the independent / continuous compartment located below the light / heavy load waterline of the ship.