Applications of Multi-directional Forging Hydraulic Presses in Shipbuilding and Marine Engineering

The core value of multi-directional forging hydraulic presses in shipbuilding and marine engineering lies in solving the manufacturing challenges of ultra-large, high-performance, and highly reliable key components. Ships and marine engineering equipment operate under harsh conditions such as seawater corrosion, wave impact, and heavy-load alternating loads, placing extremely high demands on the strength, fatigue resistance, and corrosion resistance of components. Multi-directional forging technology can precisely form and forge complex components that meet these stringent requirements in a single operation. Below is a sharing from Jianlong Hydraulic Technology for your reference!

1. Core Application Scenarios

1.1 Marine Low-Speed Diesel Engine Crankshaft – The Most Critical Breakthrough Application

The crankshaft is the "heart" of a ship's engine, bearing enormous alternating loads. Its manufacturing capability directly represents a country's shipbuilding industry level. The crankshaft, as a key component, has always been a difficult point to manufacture. The following are multi-directional forging solutions:

• Traditional processes (bending forging, block forging): These suffer from large allowances, high processing costs, and performance degradation due to the cutting of metal fibers.

• Multi-directional forging: This method uses punches from multiple directions to simultaneously compress the billet, causing complex three-dimensional plastic deformation of the metal within the die cavity, resulting in a single-step forming process.

1.2 Large Structural Components for Ships

Key load-bearing components such as propulsion system structural components and large support frames for ships also require multi-directional forging technology to ensure their reliability.

1.3 Deep-Sea Equipment and High-End Oil and Gas Components

Deep-sea equipment faces extreme environments such as high pressure and seawater corrosion, placing extremely high demands on the pressure resistance and corrosion resistance of key components such as valve bodies and pump bodies.

2. Typical Applications

2.1 Deep-sea Pressure-resistant and Corrosion-resistant Valve Bodies: Multi-directional die forging enables one-time precision forming of complex structures, improving product reliability.

2.2 High-end Pump, Valve, and Pipe Fittings: Jianlong Hydraulic Technology's independently developed multi-directional die forging hydraulic press has successfully achieved large-scale stable production of complex components such as high-end deep-sea valve bodies, successfully entering the global top-tier oilfield service supply chain.

3. Core Value Brought by Technological Advantages

3.1 Value Dimension: Performance Improvement

• Specific Manifestations: Complete and continuous metal flow lines, no cutting or shearing, significantly improved fatigue strength.

• Significance for Shipbuilding/Offshore Engineering: Improved performance extends the service life of key components such as crankshafts, resulting in higher safety.

3.2 Value Dimension: Significant Material Savings

• Specific Manifestations: Material utilization rate increased by 20%-50%, saving 30%-70% of raw materials.

• Significance for Shipbuilding/Offshore Engineering: Reduced manufacturing costs, reducing dependence on imported expensive raw materials.

3.3 Value Dimension: Green Manufacturing

• Specific Manifestations: Reduced carbon emissions by more than 50%. 

• Significance for Shipbuilding/Offshore Engineering: Aligns with the green transformation trend of the shipbuilding industry.

3.4 Value Dimension: Breaking the Monopoly

• Specific Manifestations: Achieving domestic substitution of high-end forgings.

• Significance for Shipbuilding/Offshore Engineering: Ensuring the security of the shipbuilding industry chain and supply chain.

Jianlong Hydraulic Technology's full-die forging crankshaft technology data is particularly outstanding: saving 30%-70% of raw materials, reducing carbon emissions by more than 50%, and performance indicators such as fatigue strength far exceeding imported products.

4. Future Development Trends

4.1 Ultra-Large Size: As ships develop towards larger and ultra-larger sizes, the demand for multi-directional forging equipment with larger tonnage will continue to grow.

4.2 Precision and Intelligence: Combining CAE simulation and intelligent manufacturing technology, further improving the forming accuracy and batch production stability of complex components.

4.3 Deepening Green Manufacturing: The material-saving and carbon-reducing advantages of the full-die forging process will be further promoted, driving the shipbuilding industry towards a green and low-carbon transformation.

4.4 Industry Chain Collaboration: With multi-directional forging technology as the core, driving the formation of a complete industry chain from upstream special steelmaterials to downstream complete machine assembly.

The application of multi-directional forging hydraulic presses in the shipbuilding and marine engineering field has moved from the "technology exploration" stage to the "large-scale application" stage. The successful breakthrough in the full-die forging process of large marine crankshafts signifies that China has reached an internationally leading level in this field. Currently, Jianlong Hydraulic Technology can customize hydraulic presses ranging from 10 to 5000 tons. If you have any questions or suggestions regarding multi-directional forging hydraulic presses, or need to purchase high-quality hydraulic presses, please contact us (or scan the WhatsApp QR code below). Jianlong Hydraulic Technology will provide you with personalized and customized professional solutions and is dedicated to serving you.