一Characteristics of NM400 material
NM400 is a kind of high strength wear-resistant plate with excellent wear resistance. Its main features include:
1. High hardness: The hardness of NM400 material can reach more than 400HBW, which is a very high hardness material.
2. Excellent wear resistance: Due to its high hardness, NM400 material has excellent wear resistance, which can maintain the integrity of the surface for a long time under harsh conditions.
3. Good welding performance: Although NM400 material hardness is high, but its welding performance is still good, can be processed and connected through the corresponding welding process.
4. Excellent low temperature toughness :NM400 material still has good toughness at low temperatures and is not easy to produce brittle fracture.
二, the heat treatment method of NM400 material
The heat treatment of NM400 material is to further improve its hardness and wear resistance. In general, the commonly used heat treatment methods include quenching and tempering.
1. Quenching :NM400 material is cooled rapidly at high temperature, causing martensitic transformation of its organization, thereby improving hardness and wear resistance. The quenching temperature is generally 950-
Between 1050 degrees Celsius, the quenching medium can be selected from water, oil or air.
2. Tempering: The NM400 material after quenching has a certain brittleness, which needs to be tempered to reduce its internal stress and improve toughness. The tempering temperature is generally 250-
Between 350 degrees Celsius, the time is adjusted according to specific requirements.
三, the application field of NM400 material
Due to its excellent wear resistance and high hardness, NM400 material is widely used in many fields, including:
1. Mining industry :NM400 material can be used for mining equipment, ore crusher, crusher and other wear-resistant equipment manufacturing, improve the service life and stability of equipment.
2. Construction engineering: In some construction projects that require wear resistance, such as port terminals, coal mine storage equipment, excavator teeth, etc., NM400 materials can be used
Enhance the wear resistance of the equipment.
3. Metallurgical industry: In metallurgical equipment, such as iron making equipment and casting equipment in iron and steel plants, NM400 material can improve the wear resistance of equipment and extend the wear resistance of equipment
Service life.
4. Agricultural machinery equipment: agricultural machinery equipment such as harvester blade, share and other parts, using NM400 material can improve its wear resistance, adapt to harsh working environment.
In SUMMARY:
NM400 material is a kind of high strength wear-resistant plate, with high hardness, excellent wear resistance, good welding performance and low temperature toughness. Through the proper heat treatment side
Methods such as quenching and tempering can further improve its hardness and wear resistance. Because of its characteristics, NM400 material is widely used in mining industry, construction engineering, metallurgy
In the fields of gold industry and agricultural machinery and equipment, the wear resistance and service life of the equipment are improved.
