Web Menu

Product Search

Language

Share

Home / Products / High Chromium Castings
Categories
Contact Us

Mining/Crusher High Chromium Castings Foundry

High chromium castings are mainly used for vulnerable parts including plate hammers of impact crushers, roller sleeves and liners of vertical mills, vertical shaft impact crushers, etc.
1. Introduction to high chromium products
High chromium cast iron is the abbreviation of high chromium white wear-resistant cast iron. It is an anti-wear material with good performance and special attention. It has much higher wear resistance than alloy steel, toughness, and strength than ordinary white cast iron, and good high-temperature and corrosion resistance. In addition, it is easy to produce and has a moderate cost, so it is known as one of the good anti-abrasive wear materials in contemporary times.
2. High chromium usage characteristics
1) Good heat resistance: High chromium metal can work at high temperatures, has good heat resistance, and is suitable for use in high-temperature environments;
2) Good corrosion resistance: The chromium element of high chromium metal can form a dense chromium oxide film on the surface, has good corrosion resistance, and can be used in highly corrosive media;
3) Good hardness and wear resistance: High chromium metal has high hardness and good wear resistance, and can be used for some heavy-loaded parts.
3. Performance
1) Its hardness performance is 50~54HRC in the cast state, 38~43HRC after annealing, and 60~67HRC after quenching—the hardness changes with the carbon content. When the carbon content is low, the toughness is good and the hardness is low, which is suitable for occasions with large impact loads; when the carbon content is high, the hardness is also slightly higher, which is ideal for occasions with small impact loads and shows good wear resistance.
2) The density of high chromium white cast iron is 7.6~7.7g/cm3.
3) Its linear shrinkage is 1.8%~2.0%, its volume shrinkage is 7.5%~8.0%, and its fluidity is 300~500mm at 1400℃.

Nantong Haoshun Casting Co., Ltd.

Nantong Haoshun Casting Co., Ltd. is a wholly-owned Taiwanese enterprise located in Wanghao Town, Haimen City, a land of fish and rice in the Jianghai Plain, on the northern wing of Shanghai. It is adjacent to Ningqi Expressway in the south, Provincial Highway 335 Tonglu Road and Tonglu Canal in the north, the world-famous Lushi Fishing Port in the east, and Nantong City and Nantong Airport in the west. The water and land transportation is very convenient.
As a famous China Mining High Chromium Cast Iron Parts Foundry and Crusher High Chromium Castings Factory, the company's main products include mining machinery and equipment such as crushers and accessories: high manganese steel jaw plates, liners, impact liners and hammers; high chromium wear-resistant jaw plates, plate hammers and hammers; chromium series wear-resistant cast iron grinding balls; chromium-molybdenum-niobium alloy steel liners, etc. The products are sold all over the country and exported to more than 10 countries and regions.
The company has advanced production equipment, complete testing methods, strong technical force, and good product quality. The company meets the needs of new and old customers with a standardized management system, stable product quality, reliable integrity management, and professional customer service.

Nantong Haoshun Casting Co., Ltd.
Certificate Of Honor
  • honor
  • honor
  • honor
  • honor
  • honor
  • honor
  • honor
  • honor
News Center
Message Feedback
High Chromium Castings Industry knowledge
Applications in the Mining Industry
Crushers are critical in the mining industry for breaking down rocks, ores, and other materials into smaller, more manageable sizes. These machines are subjected to significant wear due to the constant impact, friction, and abrasion caused by hard minerals and rocks. High chromium castings are ideal for these applications, as they offer exceptional hardness and wear resistance. Nantong Haoshun Casting Co., Ltd. produces a variety of high chromium jaw plates, which are key components in mining crushers. These jaw plates are subjected to extreme stresses as they crush large chunks of rock and ore. High chromium content imparts superior hardness and resistance to wear, which extends the lifespan of these parts and reduces downtime. The company's impact hammers, used for secondary crushing, are designed with high chromium alloys that ensure durability even when dealing with hard and abrasive materials like granite or quartz. The combination of these high chromium castings in crushers ensures that mining operations can run smoothly for extended periods without the need for frequent replacements, reducing both maintenance costs and operational disruptions.

Grinding mills play a pivotal role in the extraction and refinement of minerals, as they are used to reduce ores into fine powders or slurry. These mills operate under high-impact and high-abrasion conditions, where the mill liners, grinding balls, and grinding rings are continuously subjected to friction and impact forces. High chromium castings, particularly grinding balls and liners, are specifically engineered to withstand these conditions. At Nantong Haoshun Casting Co., Ltd., high chromium grinding balls are manufactured to offer superior wear resistance, ensuring efficient grinding operations in ball mills. The wear-resistant properties of these grinding balls help to improve the efficiency of mineral extraction, as they can maintain their shape and performance even after extended use in abrasive environments. The company's grinding liners, made from high chromium alloys, provide long-lasting protection to the interior surfaces of mills, reducing the need for frequent replacements and ensuring consistent grinding performance. By incorporating high chromium castings in grinding mills, mining companies can increase productivity and reduce downtime caused by part replacements, thereby improving overall operational efficiency.

Material handling is an essential aspect of mining operations, as raw materials need to be transported from the extraction point to processing facilities. Conveyors, chutes, and feeders are used extensively in this process. These components are continuously exposed to abrasive materials, which can lead to excessive wear and tear over time. Nantong Haoshun Casting Co., Ltd. manufactures high chromium castings for material handling equipment, including liners and wear plates for chutes and conveyor systems. These castings are highly resistant to abrasion, which helps prevent material loss and equipment damage during transport. The use of high chromium alloys in these components ensures a longer service life, which ultimately reduces the cost of replacements and increases the operational efficiency of the material handling system. In mining operations, where material transport is often constant and continuous, using high chromium castings in these components is essential to minimize downtime and ensure the uninterrupted flow of materials.

Excavators and shovels are vital for the removal of overburden and the extraction of valuable ores. These machines operate in environments where they frequently encounter hard rock, soil, and other abrasive materials. The high wear and tear associated with these conditions can cause significant damage to components such as bucket teeth, blades, and booms. The bucket teeth and wear-resistant parts produced by Nantong Haoshun Casting Co., Ltd. for shovels, diggers, and excavators are made from high chromium castings to withstand the constant impact from hard materials. The chromium content in the castings enhances their hardness and toughness, allowing them to maintain their structural integrity even when faced with extreme conditions. This results in longer-lasting components, reducing maintenance costs and increasing the operational lifespan of the machinery. By using high chromium castings in these high-impact components, mining operations can minimize downtime caused by part failure, ensuring that equipment continues to perform at optimal levels throughout the extraction process.

Drill rigs are essential in mining for creating holes in rock formations for blasting and extraction purposes. The drill bits and other components of the drilling systems are subjected to extreme stresses due to the hardness of the rocks they penetrate. High chromium castings are often used to manufacture drill bits, sleeves, and other components due to their outstanding resistance to wear and heat. The high chromium castings supplied by Nantong Haoshun Casting Co., Ltd. for drilling operations are designed to withstand the abrasive nature of rock formations. The company's drill bits and sleeves are resistant to wear and provide better performance over a longer period compared to traditional materials. By incorporating high chromium castings into drill rigs, mining companies can achieve more efficient drilling operations, reduce the frequency of bit replacements, and minimize downtime during drilling activities. The superior hardness and toughness of these high chromium castings also contribute to increased penetration rates, which can enhance the overall efficiency of the drilling process.

Chutes and hoppers are critical for transferring mined material from one location to another. However, due to the abrasive nature of the material, these components often experience significant wear over time. High chromium castings are used to line chutes and hoppers to protect the underlying structures from damage caused by the continuous flow of materials. Nantong Haoshun Casting Co., Ltd. manufactures high chromium liners for chutes, hoppers, and other material handling systems. These liners are designed to absorb the impact of falling or sliding materials, preventing damage to the equipment and ensuring a longer service life. The use of high chromium castings in these applications provides superior wear resistance, reducing the frequency of maintenance and replacement, which translates into cost savings for mining companies. By using high chromium castings in wear-resistant linings, mining operations can improve the reliability of their material handling systems, reduce the risk of costly breakdowns, and enhance overall operational efficiency.