The manufacturing process for large ship diesel engines is complex, and a single component often requires several weeks or even months for processing, resulting in longer storage times between operations. After processing, metal parts are prone to oxidation when exposed to air, and engine components are quite expensive. Jiangsu Nantong Yongyu Anti-Rust recommends using effective anti-rust measures to prevent rust from occurring.
Engine components such as crankshafts, connecting rods, camshafts, and crankshaft bearings are typically made of cast material. Cast iron is prone to rust, and the usual method for prevention is to apply anti-rust oil and then cover the workpiece with a plastic bag. Anti-rust oil is a thick, butter-like substance. Due to its thick oil film, it offers good rust prevention. However, it has a strong odor and easily attracts dust, making the application process quite unpleasant for workers. The oil is incompatible with most diesel and engine oils, so it must be removed before assembly. General cleaning agents are ineffective in removing it, and multiple cleanings increase costs.
Vapour phase corrosion inhibition has become the mainstream method in the automotive industry, with the majority of auto parts suppliers utilizing vapour phase corrosion inhibition materials to protect their metals. Since its introduction to China at the end of the last century, it has been less than twenty years. Thanks to its advantages of cleanliness, environmental friendliness, and low cost, vapour phase corrosion inhibition has gradually replaced traditional rust inhibitors.
Jiangsu Nantong Yongyu Antirust has developed an antirust solution specifically for marine engines, drawing upon its accumulated experience in the automotive industry.
Large marine engines differ from automotive diesel or gasoline engines in the following aspects:
Larger in volume, difficult to clean, and prone to residue of corrosive processing fluids. Also not suitable for refined packaging methods such as rust-proof bags and cardboard boxes.
(2) High mechanical strength; materials containing more carbon and manganese are more prone to rust.
(3) The processing workshop has a relatively dusty environment, which is prone to rust.
Based on the characteristics of these large marine engines, Jiangsu Nantong Yongyu Antirust has designed the following antirust solution:
(1) Replace the rust preventive oil with the Vapour Phase Rust Preventive Oil (YY-MFY-6071), which boasts low viscosity, minimal odor, thin oil film, and no need for cleaning. It outperforms the traditional rust preventive oil in terms of cost-effectiveness and environmental friendliness.
(2) Replacing plastic bags with gas-phase anti-rust film. Due to the large size of engine components, it's inconvenient to use anti-rust bags. The wrapping film offers flexible packaging, where a simple wrap creates a relatively sealed environment. The volatile anti-rust gas, along with the anti-rust oil, together protect the metal from corrosion.
Even if your factory is located in coastal areas, Jiangsu Nantong Yongyu Antirust's marine engine antirust packaging solution can eliminate the possibility of rust.
We have maintained a close partnership with the shipping company for many years, committed to providing mature anti-rust solutions for the shipbuilding industry.
