Heat treatment technology is a key link in the production of mechanical forgings in ship ports, which is of great significance to improve the quality, performance and reliability of forgings. This paper introduces the concept, principle and classification of heat treatment technology, analyzes its application in the production of mechanical forgings in ship ports, and discusses the process flow, quality control and specific application of heat treatment technology. Finally, the importance and function of heat treatment technology in the production of mechanical forgings in ship ports are summarized, and suggestions for further research and application are put forward.
Ship port machinery forging is the key component of ship machinery equipment, its quality is directly related to the performance and safety of the ship. Heat treatment technology is an important link in forging production, which can effectively improve the quality, performance and reliability of forging. Therefore, it is of great significance to study the application of heat treatment technology in the production of mechanical forgings in ship ports.
Heat treatment technology introduction:
Heat treatment technology refers to a metal material heated to a certain temperature, and at this temperature for a certain time, and then cooled at a certain speed of a metal processing process. The basic principle is to improve the mechanical properties, corrosion resistance and fatigue resistance of the material by changing the internal structure of the metal material. In the production of mechanical forgings in ship ports, heat treatment technology mainly includes quenching, tempering, annealing, normalizing and so on.
Heat treatment process:
The heat treatment process generally includes three stages: heating, holding and cooling. In the heating stage, the metal material is heated to a predetermined temperature; In the insulation stage, the material is kept at a predetermined temperature for a certain time so that the internal structure changes; In the cooling phase, the material is cooled at a certain rate to control changes in the internal structure. In the production of mechanical forgings in ship ports, the specific heat treatment process and parameters should be determined according to the material, shape, size and use requirements of the forgings.
Heat treatment quality control:
Heat treatment quality control is an important link to ensure the quality of forging, including raw material quality control, production process control and finished product inspection. For the quality control of raw materials, the composition, metallographic organization and internal defects of materials should be strictly controlled; For the production process control, it is necessary to strictly control the heating temperature, holding time, cooling speed and other parameters; For finished product inspection, the mechanical properties, metallographic structure and surface quality of forgings should be tested.
Heat treatment technology application:
In the production of mechanical forgings in ship ports, heat treatment technology is widely used in the production of various types of forgings. For example, for shaft forgings, commonly used heat treatment technologies include quenching + tempering, carbonitriding, etc., to improve its strength, hardness and wear resistance; For gear forgings, the commonly used heat treatment technologies include carburizing, nitriding, quenching + tempering, etc., to improve its bearing capacity, wear resistance and fatigue resistance; For connection forgings, the commonly used heat treatment technology includes the strengthening of fasteners such as bolts and nuts and the post-welding heat treatment of welded structures to improve their connection strength and reliability.
Heat treatment technology plays an important role and is widely used in the production of mechanical forgings in ship ports. Through reasonable heat treatment process, the quality, performance and reliability of forging can be improved, and its service life can be extended. Therefore, in future research and application, new heat treatment technologies and processes should be further explored, and existing heat treatment processes and equipment should be continuously improved to improve heat treatment efficiency and quality stability. At the same time, it is necessary to strengthen the personnel training and technical exchanges of heat treatment technology, and improve the level of heat treatment technology in the entire industry.
