Metal Powder Water Atomizer For Precious Metal Powder Gold Silver Copper

There are still many deficiencies in the understanding of 3D printing technology in all aspects of China's manufacturing industry. Judging from the actual development situation, so far 3D printing has not achieved mature industrialization, from equipment to products to services still in the "advanced toy" stage. However, from the government to enterprises in China, the development prospects of 3D printing technology are generally recognized, and the government and society generally pay attention to the impact of the future 3D printing metal atomization pulverizing equipment technology on my country's existing production, economy, and manufacturing models.

According to the survey data, at present, my country's demand for 3D printing technology is not concentrated on equipment, but is reflected in the variety of 3D printing consumables and the demand for agency processing services. Industrial customers are the main force in purchasing 3D printing equipment in my country. The equipment they purchase is mainly used in aviation, aerospace, electronic products, transportation, design, cultural creativity and other industries. At present, the installed capacity of 3D printers in Chinese enterprises is about 500, and the annual growth rate is about 60%. Even so, the current market size is only about 100 million yuan per year. The potential demand for R&D and production of 3D printing materials has reached nearly 1 billion yuan per year. With the popularization and progress of equipment technology, the scale will grow rapidly. At the same time, 3D printing-related entrusted processing services are very popular, and many agents 3D printing The equipment company is very mature in the laser sintering process and equipment application, and can provide external processing services. Since the price of a single equipment is generally more than 5 million yuan, the market acceptance is not high, but the agency processing service is very popular.

Most of the materials used in my country's 3D printing metal atomization pulverizing equipment are directly provided by rapid prototyping manufacturers, and the third-party supply of general materials has not yet been implemented, resulting in very high material costs. At the same time, there is no research on powder preparation dedicated to 3D printing in China, and there are strict requirements on particle size distribution and oxygen content. Some units use conventional spray powder instead, which has many inapplicability.

The development and production of more versatile materials is the key to technological advancement. Solving the performance and cost problems of materials will better promote the development of rapid prototyping technology in China. At present, most of the materials used in my country's 3D printing rapid prototyping technology need to be imported from abroad, or the equipment manufacturers have invested a lot of energy and funds to develop them, which are expensive, resulting in increased production costs, while the domestic materials used in this machine have low strength and precision. . The localization of 3D printing materials is imperative.

Titanium and titanium alloy powders or nickel-based and cobalt-based superalloy powders with low oxygen content, fine particle size and high sphericity are required. The powder particle size is mainly -500 mesh, the oxygen content should be lower than 0.1%, and the particle size is uniform At present, high-end alloy powder and manufacturing equipment still mainly rely on imports. In foreign countries, raw materials and equipment are often bundled and sold to earn a lot of profits. Taking nickel-based powder as an example, the cost of raw materials is about 200 yuan/kg, the price of domestic products is generally 300-400 yuan/kg, and the price of imported powder is often more than 800 yuan/kg.

For example, the influence and adaptability of powder composition, inclusions and physical properties on the related technologies of 3D printing metal atomization powder milling equipment. Therefore, in view of the use requirements of low oxygen content and fine particle size powder, it is still necessary to carry out research work such as composition design of titanium and titanium alloy powder, gas atomization powder milling technology of fine particle size powder, and the influence of powder characteristics on product performance. Due to the limitation of milling technology in China, it is difficult to prepare fine-grained powder at present, the powder yield is low, and the content of oxygen and other impurities is high. During the use process, the powder melting state is prone to unevenness, resulting in high content of oxide inclusions and denser products in the product. The main problems of domestic alloy powders are in product quality and batch stability, including: ① stability of powder components (number of inclusions, uniformity of components); ② powder physical Stability of performance (particle size distribution, powder morphology, fluidity, loose ratio, etc.); ③ problem of yield (low yield of powder in narrow particle size section), etc.