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Advantages and disadvantages of cast iron and forged iron
Date:2024-11-14 13:28:38 Author:Zhejiang Hairui Valve Co., Ltd

Cast iron and forged iron are two different types of iron products, each with unique advantages and disadvantages. The following is a detailed comparison of the two:

1、 Cast iron

advantage

Good casting performance: Cast iron has good fluidity and filling properties, and can be cast into castings with complex shapes and precise dimensions.

Shock absorption performance: Cast iron has high damping capacity, which can effectively absorb and disperse vibration energy, thus having good shock absorption performance.

Dry anti-wear properties: Cast iron can form a protective oxide film during friction, reducing friction and wear, thus having good dry anti-wear properties.

shortcoming

Brittleness: Cast iron has high brittleness, poor impact resistance, and is prone to fracture under external forces.

Not corrosion-resistant: Cast iron is prone to rusting and corrosion in humid environments, and anti-corrosion measures need to be taken for protection.

Thermal hysteresis: Cast iron has a high specific heat capacity and poor thermal conductivity, making it difficult to control the temperature during cooking and unsuitable for situations that require rapid heating or cooling.

2、 Forged iron

advantage

Good ductility: Forged iron has good ductility and plasticity, and can be processed into various shapes and sizes of products through heating, hammering, and other methods.

High strength: After forging, the internal structure of forged iron becomes denser, thus possessing higher strength and toughness.

Corrosion resistance: The surface of forged iron is prone to forming a dense oxide film, which can resist corrosion and oxidation, thus having good corrosion resistance.

shortcoming

High manufacturing cost: The manufacturing process of forged iron requires a large amount of energy and manpower, so the manufacturing cost is relatively high.

Complex shapes are limited: Due to the cumbersome processing of forged iron, it is difficult to manufacture products with overly complex shapes.

Heavy weight: Forged iron products have a high density, so they are relatively heavy and not suitable for occasions that require lightweighting.

In summary, there are significant differences between cast iron and forged iron in terms of advantages and disadvantages. When choosing which material to use, it is necessary to consider comprehensively based on specific application scenarios and requirements.


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