In order to prevent cracks in the manufacturing process of Car steering knuckle, it is necessary to start from multiple links such as raw material control, forging process, heat treatment process and quality inspection to ensure that each link meets strict quality control standards. The following are specific measures:
1. Raw material control
Strict quality inspection at the factory:
Raw materials are the basis of Car steering knuckle manufacturing, and their quality directly affects the performance of the final product. Therefore, it is necessary to strictly control the quality inspection of raw materials entering the factory. Sampling is carried out according to the furnace number, and advanced equipment such as spectrometer, hardness tester, electron microscope, etc. are used to conduct comprehensive inspections on the chemical composition, hardness, metallographic structure, etc. of the materials to ensure that the materials meet the technical requirements and prevent unqualified materials from entering the factory.
2. Forging process control
Optimize the forging process:
During the forging process, it is necessary to reasonably control the forging temperature, forging speed, forging pressure and other parameters to avoid defects such as overheating, overburning, folding, etc. At the same time, according to the structural characteristics of the forging, select the appropriate forging method and forging die to ensure that the internal structure of the forging is dense and defect-free.
Strengthen the monitoring of the forging process:
During the forging process, the maintenance and care of the forging equipment should be strengthened to ensure that the equipment is in good working condition. At the same time, the forging process should be monitored in real time to detect and deal with abnormal situations in time to prevent the occurrence of forging defects.
3. Heat treatment process control
Optimize the medium frequency quenching process:
Medium frequency quenching is an important process to improve the surface hardness and wear resistance of Car steering knuckle. However, inappropriate medium frequency quenching process will cause cracks in Car steering knuckle. Therefore, it is necessary to optimize the medium frequency quenching process parameters, such as medium frequency working power, heating and cooling time, cooling medium, etc., to ensure uniform heating and moderate cooling speed to avoid quenching cracks.
Strengthen the monitoring of the heat treatment process:
During the heat treatment process, the monitoring and maintenance of the heat treatment equipment should be strengthened to ensure the stable operation of the equipment. At the same time, the heat treatment process should be monitored in real time and key parameters should be recorded to detect and deal with potential problems in time.
4. Quality Inspection and Control
Comprehensive Quality Inspection:
Comprehensive quality inspection is required at all stages of Car steering knuckle manufacturing. Especially in key links such as after forging quenching and tempering, shot peening and medium frequency quenching, 100% hardness inspection and magnetic particle inspection are required to ensure that the forgings are free of defects such as cracks and folds.
Strengthen quality traceability:
Establish a complete quality traceability system to record the raw materials, forging process, heat treatment process and quality inspection records of each batch of products in detail, so that the cause can be quickly traced and measures can be taken when problems arise.
5. Continuous Improvement and Training
Continuous Process Improvement:
Based on feedback and quality control data from production practice, continuously improve and optimize forging, heat treatment and other processes to improve product quality and stability.
Strengthen employee training:
Regularly conduct process training and quality awareness education for employees to improve their operating skills and quality awareness, and ensure that each employee can produce in accordance with standard operating procedures.
In summary, preventing cracks from occurring in the Car steering knuckle during the manufacturing process requires multiple aspects such as raw material control, forging process, heat treatment process, quality inspection and control, and continuous improvement and training to ensure that each link meets strict quality control standards.
