Precise material selection for cone breaking and fixing: scientifically matching materials and working conditions to improve comprehensive efficiency

As the core equipment of the fine crushing process, the wear resistance of the fixed cone (dynamic cone liner) of the cone crusher directly affects the crushing efficiency, product particle shape, and maintenance cost. The selection of materials for a fixed cone is a technical decision that requires comprehensive consideration of equipment parameters, material characteristics, and economy. This article aims to provide an objective and professional reference guide for material selection.

1、 Understanding the service environment of fixed cones: wear mechanism is the basis for material selection

The fixed cone is subjected to severe compression, grinding, and impact from materials during operation. The main wear mechanisms include:

High stress grinding and wear: In the extrusion crushing area, the material slides against the lining surface under high pressure, causing micro cutting.

Repeated impact fatigue: The periodic action of crushing force may cause microcracks to form and propagate on the surface of the material.

Therefore, the ideal cone material needs to have both high hardness to resist grinding and sufficient toughness to absorb impact energy and prevent fracture.

2、 Mainstream material technology route and its applicability analysis

At present, the mainstream materials for cone breaking cones in the market can be divided into the following categories, each with its own clear performance characteristics and applicable working conditions:

High manganese steel series

Characteristics: Traditional and widely used materials, typical grades are Mn13 and Mn18. Its core advantage lies in its strong work hardening ability - under strong impact loads, the surface hardness will significantly increase, resulting in excellent wear resistance while maintaining high toughness in the core.

Applicable working conditions: Strong impact working conditions, such as crushing high hardness granite, basalt, etc. If the impact force is insufficient, the surface may not fully harden, and its wear resistance may not be fully exerted.

Ultra high manganese steel and modified high manganese steel

Characteristics: On the basis of traditional high manganese steel, the initial hardness and yield strength are improved by adding alloying elements such as Cr, Mo, V, etc., enhancing the work hardening ability, and the wear resistance is generally better than that of ordinary high manganese steel.

Applicable working conditions: Complex and variable impact working conditions, or medium to large cone fractures with high material hardness, are currently one of the mainstream choices for high-performance application scenarios.

Medium chromium alloy steel/high chromium cast iron composite material

Features: Adopting bimetallic composite casting technology, the working layer is made of high hardness high chromium cast iron, and the back layer is made of alloy steel with good toughness. This design achieves "external hardness and internal toughness", with a macroscopic hardness much higher than high manganese steel and extremely strong resistance to grinding.

Applicable working conditions: mainly for grinding and wear, with relatively small impact, such as crushing abrasive materials with medium hardness or below (such as quartz, iron ore, etc.). Under strong impact, there is a risk of peeling or fracture on its brittle working surface, and careful selection is necessary.

3、 Key factors in scientific selection decision-making

To select the most suitable cone material for your device, it is recommended that the system evaluate the following factors:

Characteristics of crushed materials

Hardness and abrasiveness: The higher the hardness of the material (such as basalt) and the higher the SiO ₂ content, the higher the requirements for the hardness and wear resistance of the material.

Particle size and grading: If the feeding particle size is too large or the grading is uneven, it will intensify the impact, and toughness is the key at this time.

Equipment model and operating parameters

Crushing cavity type and speed: Different cavity types and speeds determine the crushing force and impact energy, directly affecting the requirements for material toughness.

Equipment power and expected production capacity: High load, high-efficiency production lines require high-end materials that are more durable and have more stable performance.

Economic analysis

The selection of materials should not only be based on the price of a single item, but should also undergo a ton cost analysis (i.e., dividing the cost of a single item by the total tonnage of materials processed). Higher grade materials may require higher initial investment, but due to their longer lifespan, they often result in lower long-term operating costs and less downtime losses.

4、 Professional advice and quality considerations

Balancing craftsmanship and quality: Excellent material formulations rely on advanced smelting, casting, and strict heat treatment processes to ensure their final performance. Choosing a supplier with a comprehensive quality control system is crucial.

Seeking professional consultation: We strongly recommend that you inform a professional technical supplier of your specific operating conditions (equipment model, crushed materials, production capacity requirements, etc.), and they will provide targeted material selection solutions.

On site tracking and data-driven decision-making: Establish a service life file for accessories, compare the performance of different materials in actual production, and provide the most authentic and effective data support for future material selection optimization.