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【Basic Knowledge Material】Corrosion Prevention and Leak Sealing! What are the Effects of Composite Repair?

【Basic Knowledge Material】Corrosion Prevention and Leak Sealing! What are the Effects of Composite Repair?

We are publishing examples of composite repairs that not only provide corrosion protection but also have leak-stopping effects!

This document introduces the corrosion protection and leak prevention measures of the long-term extension of reduced meat piping provided by Fujifarma Night, titled "Composite Repair." It includes sections on "What can be done with Composite Repair" and "Examples of Composite Repair applications." Our service can be designed according to the customer's repair objectives, defect shapes, required durability years, and other conditions, allowing us to propose suitable repairs for our customers. Please contact us if you require our services. [Contents] ■ Introduction: "What can be done with Composite Repair" ■ Composite Repair that considers not only corrosion protection but also leak prevention ■ We will introduce examples of Composite Repair that provide both corrosion protection and leak prevention effects! *For more details, please refer to the PDF document or feel free to contact us.

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[Composite Repair Case Study] Repair of Pipe Corrosion and Thinning Due to Rainwater

[Composite Repair Case Study] Repair of Pipe Corrosion and Thinning Due to Rainwater

Composite materials of carbon fiber and epoxy resin for leak sealing and corrosion prevention in reduced thickness piping. *Examples of application in petroleum refining plants are introduced.

We would like to introduce a case study from a petroleum refining plant. Rainwater entered the 2B dummy pipe support welded to the 3B elbow inside the petroleum refining plant, leading to corrosion over time and noticeable wall thinning. Therefore, we designed it under the condition of "being usable for 10 years without replacing the target piping" and decided to laminate a composite four-layer structure. The composite layers prevent the progression of permanent corrosion and also consider the future leak-stopping effect in case the thinned areas penetrate within the design lifespan (10 years). 【Strengths of Composite Repair】 ■ Design can be tailored to purposes such as strength restoration, leak stopping, and corrosion prevention (strength calculations) ■ Preventive maintenance measures for thinned piping with predictable service life ■ Strength restoration and leak stopping with a maximum design life of 20 years are possible ■ Design and construction in accordance with ISO 24817 ■ Quality that has passed performance tests by third-party organizations *For more details on this method, "Composite Repair Service," please refer to the PDF materials or feel free to contact us. *We also encourage you to check out the case study materials.

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  • Piping Materials

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[Composite Repair Case Study] Fire Hydrant Reduced Thickness Pipe Penetration and Leak Repair

[Composite Repair Case Study] Fire Hydrant Reduced Thickness Pipe Penetration and Leak Repair

Composite materials made of carbon fiber and epoxy resin to avoid the risk of pipe bursts and unexpected shutdowns at power plants! *Examples of construction at thermal power plants are introduced with photos.

Here is an introduction to a construction case study at a thermal power plant. Galvanic corrosion occurred due to the welding of dissimilar metals in the fire hydrant piping. Thinning progressed near the weld line, resulting in a state of penetration and leakage. Our company designed under the condition that "the target piping can be used for 20 years without replacement." When calculating the strength assuming that thinning progresses and the entire circumference of the weld line breaks, it was found that a composite of 15 layers is necessary to suppress leakage. Due to the composite layers, the fracture mechanism changes, which reduces the risk of pipe rupture and helps avoid human casualties and unexpected shutdowns of the power plant. **Strengths of Composite Repair** - Design can be tailored to purposes such as strength restoration, leak prevention, and corrosion protection (strength calculations). - Preventive maintenance measures for thinning piping with predictable service life. - Strength restoration and leak prevention with a maximum design life of 20 years are possible. - Design and construction comply with ISO 24817. - Quality that has passed performance tests by third-party organizations. *For more details on this method, "Composite Repair Service," please refer to the PDF materials or feel free to contact us. We also encourage you to check out the case study materials.*

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  • Piping Materials

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[Basic Knowledge Material] A Thorough Explanation of the Strength Calculation Method for Composite Repairs!

[Basic Knowledge Material] A Thorough Explanation of the Strength Calculation Method for Composite Repairs!

Choose the appropriate calculation formula from multiple patterns! Introducing the concept of strength calculation.

The composite repair service provided by Fujifilm Pharma Night allows for the repair of reduced-thickness piping through the lamination and repair of composite materials made from carbon fiber and epoxy resin, enabling corrosion prevention, strength restoration, and leak sealing. Strength calculation in composite repair refers to the process of calculating the necessary thickness of composite layers required for repair, taking into account the purpose and conditions of the repair. Based on information from customers and on-site surveys, our company selects appropriate formulas tailored to the damage shape and calculates the "necessary composite thickness." 【What is strength calculation?】 ■ Calculating the thickness of composite layers required for repair, considering the purpose and conditions of the repair (design life, pipe diameter, pressure, temperature, fluid, etc.) ■ When performing strength calculations for the thickness of composite layers that exhibit leak-sealing effects, selecting the appropriate formula from multiple patterns. *For more details, please refer to the PDF document or feel free to contact us.

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【Basic Knowledge Material】What is Composite Repair?

【Basic Knowledge Material】What is Composite Repair?

We introduce the design, quality, and history of the development of composite repairs!

This document contains information about the composites of Fuji Pharmanight Co., Ltd. It introduces topics such as "Design of Composite Repairs," "Quality of Composite Repairs," and "History of the Development of Composite Repairs." We encourage you to read it. 【Contents】 ■ What is Composite? ■ Design of Composite Repairs ■ Quality of Composite Repairs ■ History of the Development of Composite Repairs *For more details, please refer to the PDF document or feel free to contact us.

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[Composite Repair Case Study] Repairing Pipe Thickness Without Stopping the Plant!

[Composite Repair Case Study] Repairing Pipe Thickness Without Stopping the Plant!

Restoration of strength, leak prevention, and corrosion protection effects of reduced meat piping! Case studies of composite repair services.

Corrosion occurred on the 8B piping laid on the upper part of the tank in the oil refining plant, and according to the RT results, it was found that the minimum wall thickness of the 3/4B boss section is 0.6mm. In the event of a problem with the piping, there is a risk of leakage of the internal fluid (butane), and to update the piping, the entire plant must be stopped, making corrosion prevention measures essential before any leakage occurs. Therefore, as a corrosion prevention measure centered around the boss section, a composite was laminated in two layers over a range of 300mm to the left and right of the 8B main pipe. The high environmental barrier effect of the composite layer completely prevents the progression of external corrosion and reduces the risk of leakage compared to measures taken with just anti-corrosion paint. [Effects] ■ The high environmental barrier effect of the composite layer completely prevents the progression of external corrosion. ■ The risk of leakage is reduced compared to measures taken with just anti-corrosion paint. *For more details, please refer to the PDF document or feel free to contact us.

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