Precautions for fine machining, industrial requirements
2024-04
Fine machining is a casting process with little or no cutting, which is a good process technology in the foundry industry, and its application is widespread. The reasons for choosing meticulous machining are as follows:
It can use universal materials and can utilize large amounts of scrap metal and recyclable resources. The less it consumes compared to the normal forging method. The cost is OK, the comprehensive economic performance is good, the energy consumption is not high, and the consumables are few. The casting has a wide range of adaptability, and is not limited by the size, thickness and shape complexity of the casting, and the production mode is convenient. Investment casting has high dimensional accuracy and surface finish, which can reduce the workload of machining. It is possible to cast superalloy castings, such as the blades of jet engines, streamlined contours and cooling chambers, which are difficult to form by machining techniques. The casting has the corresponding dimensional accuracy, the machining allowance is small, and the processing time and metal materials are saved.
The industrial requirements of meticulous machining are as follows:
1. Form some correct structure, the overall combination of production, education and education and training bases, which can continue to deliver talents to enterprises, and constantly produce new varieties of casting materials, so as to meet the growing demand for casting materials, and gradually increase the intensity of technology import and export.
2. It is necessary to complete the adjustment of the industrial structure, eliminate a number of small casting factories with low technical level, poor product quality, serious pollution and poor economic benefits, form relatively concentrated "small giants" and "enterprises", and realize "chemical and large-scale" production.
3. Complete the transformation from labor, resource-intensive to technical capital-intensive in terms of growth mode, from extensive pollution to green intensive, the quality, variety and quantity of products are equivalent to the world level, the proportion of materials increases, and the production rate and economic benefits of the entire casting factory have doubled; Environmental pollution control, the initial establishment of China's foundry material industry system in harmony with the environment.
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