Introduction and selection of materials for the hammer head of the hammer crusher

Introduction and Selection of Materials for Hammer Head of Hammer Crusher

The hammer head of hammer crusher is an important part of the crushing machine, and its quality determines the efficiency and service life of the equipment. Therefore, the selection of materials for the hammer head is crucial.

Generally, the hammer head of a hammer crusher is made of high-manganese steel, high-chromium cast iron, or bimetallic composite materials. The selection of material depends on the properties of the crushed material, the type of crushing machine, and the operating conditions.

High-Manganese Steel Hammer Head: High-manganese steel is a common material for hammer heads due to its high toughness, wear resistance, and impact resistance. It is suitable for crushing brittle materials such as limestone, coal, and gypsum, with low compressive strength and high water content. However, high-manganese steel is susceptible to fatigue and wear, and its service life is relatively short.

High-Chromium Cast Iron Hammer Head: High-chromium cast iron has excellent wear resistance, corrosion resistance, and heat resistance. It is suitable for crushing materials with high compressive strength and moderate hardness, such as granite, basalt, and quartz. However, high-chromium cast iron has poor toughness and is brittle, which makes it prone to cracking and fragmentation during operation.

Bimetallic Composite Materials Hammer Head: Bimetallic composite materials consist of two or more materials, with one being the main material and the other being the reinforcement material. The main material can be made of high-manganese steel or high-chromium cast iron, while the reinforcement material can be made of tungsten carbide, titanium carbide, or other wear-resistant materials. Bimetallic composite materials combine the advantages of both materials, with high wear resistance and impact resistance. It is suitable for crushing materials with high hardness, abrasiveness, and toughness.

Here is a summary table of the selection of materials for hammer head of a hammer crusher:

| Material | Properties | Suitable for Crushing |

| --- | --- | --- |

| High-manganese steel | High toughness, wear resistance, and impact resistance | Brittle materials such as limestone, coal, and gypsum with low compressive strength and high water content |

| High-chromium cast iron | Excellent wear resistance, corrosion resistance, and heat resistance | Materials with high compressive strength and moderate hardness, such as granite, basalt, and quartz |

| Bimetallic composite materials | High wear resistance and impact resistance | Materials with high hardness, abrasiveness, and toughness |

Overall, the selection of materials for the hammer head of a hammer crusher plays a crucial role in the efficiency and service life of the equipment. The properties of the crushed material, the type of crushing machine, and the operating conditions should be considered when selecting the appropriate material for the hammer head.