How to break through the application of casting sanding technology

Since the 21st century, China's foundry industry has been developing for a long time, and the total number of castings has been ranked first in the world for many years.
Since the 21st century, China's foundry industry has been developing for a long time, and the total number of castings has been ranked first in the world for many years. Especially in recent years, there have been many professional foundries in China, producing wind power, internal heat, compressors, power generation, machine tools, mining machinery and other castings. The quality is very good, occupying a very important position in the international and domestic markets. With the appearance of these professional foundry factories, the appearance and internal quality of castings have also been greatly improved. The castings produced can be comparable to the castings produced in developed countries in Europe. For example, the body castings shared by Ningxia are shipped to the United States and customers are obtained. It is highly appreciated, saying that its appearance quality exceeds that of French castings and even reaches the level of German castings.

At the stage of rapid development of castings in China, we cannot ignore the current dilemma that is currently faced by foundry factories.

: Difficulties in recruiting workers, large staff turnover, low cultural level, and difficult to understand complex technical requirements.

With the decrease in the number of heavy physical laborers, the labor cost has risen sharply. In addition, the polishing work environment is poor and the labor intensity is high. Many people are unwilling to carry out this work, resulting in high polishing process costs. Then, how to reduce the cost of polishing, it is in front of the foundry production enterprises. From the root, the grinding process is to clean up the defects such as crevices, iron wraps, burrs, and sand sticks caused by poor pre-order quality. From this level, as long as these poor quality of the pre-order are eliminated, the grinding process can be eliminated, which not only shortens the casting production process, but also greatly reduces the production cost, but it is impossible to completely eliminate the poor quality of the pre-order. Therefore, how to improve the technology and polishing efficiency of the polishing personnel has become an effective way to solve the high cost of the grinding process. Our company has taken two countermeasures against the characteristics of “ageing, low cultural level and large population movement” of polishing workers: on the one hand, the talented young talents of recruiting secondary vocational colleges are led by the masters to learn the practical polishing skills. And experience; on the other hand, improve the polishing tools to make it safe, lightweight, easy to disassemble, and easy to operate. For example, in some developed countries, the sanding and cleaning process has achieved full-automatic mechanization, using robots to hold the castings and grinding them on various fixed grinding equipments according to pre-programmed procedures, which not only saves labor costs, but also eliminates The risk of injury to the personnel during the grinding process also ensures a high degree of consistency in the quality of the grinding, enabling efficient and low-cost operation of the grinding process.

With the specialization of foundry production, some foundry companies that produce specific castings have developed very well. Due to their specialized production, which is conducive to the quality of castings, the control of cost, and the cultivation of technical talents, the more competitive they are in the industry. The more prominent it is, and this is also the trend of industry development. Specialized casting production not only reduces the types of grinding tools, but also improves the grinding efficiency, shortens the grinding time, and makes it easier to automate the grinding technology.

Of course, casting technology is also constantly developing. At present, the near-final castings have been studied in some fields, that is, the castings can meet the customer's appearance requirements after falling sand, removing the casting system and blasting, which will minimize the grinding work. For example, the application of 3D printing technology in the production of castings can produce arbitrarily imagined complex structures, including complex internal cavity structures, and the resulting surface roughness of castings can be comparable to investment casting, thereby greatly reducing the grinding work.

In summary, the grinding technology is developing in the direction of lightness, high efficiency and intelligence, which is also the demand for human liberation and automated production in market development.


Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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