According to the industry, compared with the mechanical crusher, the jet mill has high crushing strength and high energy utilization rate. The jet mill can reach 2%-10%, while the ordinary crusher is only 0.6%. The equipment structure is simple and can be carried out. Aseptic effect, easy to clean, the product after pulverization is fine, up to a few microns or even sub-micron, and keep the particles regular and smooth. In addition, the jet mill can perform combined operations such as pulverization and drying, pulverization and mixing, pulverization and chemical reaction in the machine.
Although the advantages of the jet mill are obvious, there are also some shortcomings. For example, there are many auxiliary equipments and high cost. When the crushing system is clogged, the dumping phenomenon will occur, and a large amount of dust will be sprayed to deteriorate the operating environment; the crushing materials have limitations, such as Materials containing more oil, water and fiber are not easily crushed.
Many users also reported that the domestic airflow pulverizer still has defects such as slow smashing speed and high noise.
It is understood that after 20 years of development in China's airflow mill machinery industry, the market scale has been very large, and it has been involved in many fields such as pharmaceutical and chemical industry. However, from the overall level of the industry, China's airflow pulverizer technology is relatively backward compared with foreign countries, and its development is subject to certain constraints.
Some experts said that at present, domestic airflow pulverizer R & D companies are facing more than 90% of overcapacity. Therefore, the sustainable development of the jet mill industry requires a comprehensive consideration of many factors, eliminating the problems of high noise, limited materials, slow pulverization, low efficiency, etc., and develops a pulverizer that meets the needs of the pharmaceutical industry, using products with high technical content. Conquer the market.
With the improvement of the equipment structure and the improvement of the pulverization technology, the defects of the domestic airflow pulverizer are gradually being overcome in the process of large-scale and automatic exploration of the device.
It is reported that a crusher enterprise has developed a new type of combined airflow crushing equipment, which has better performance than traditional jet mill and mechanical crushing. It has low energy consumption, short process area, no dust pollution, and low heat generation. The finished product has fine grain size, wide pulverization range, unlimited water content of the material, and unlimited particle size, which can replace imported equipment.
In general, China's jet mill industry is breaking through the bottleneck of development. With the advent of the intelligent automation era, intelligence and automation have become an inevitable trend in the future development of the machinery industry. Under this background, the jet mill industry will also cater to the market. The demand continues to move toward intelligent automation.
In addition, in the process of continuous development of the pharmaceutical industry and intensified competition, pharmaceutical companies pay more attention to cost control. High performance, high reliability, high maneuverability, good maintainability and economical equipment are becoming the products that users are pursuing. The industry said that modular design principles, methods and technologies will be an effective way to explore the manufacturers of jet mills.
Die casting(Aluminium Die Casting) is a metal casting process that is characterized by forcing molten metal under high pressure into a mold cavity. The mold cavity is created using two hardened tool steel dies which have been machined into shape and work similarly to an injection mold during the process. Most die castings are made from non-ferrous metals, specifically zinc, copper, aluminium, magnesium, lead, pewter and tin based alloys. Depending on the type of metal being cast, a hot- or cold-chamber machine is used.
The casting equipment and the metal dies represent large capital costs and this tends to limit the process to high volume production. Manufacture of parts using die casting is relatively simple, involving only four main steps, which keeps the incremental cost per item low. It is especially suited for a large quantity of small to medium-sized castings, which is why die casting produces more castings than any other casting process.[1] Die castings are characterized by a very good surface finish (by casting standards) and dimensional consistency.
Two variants are pore-free die casting, which is used to eliminate gas porosity defects; and direct injection die casting, which is used with zinc castings to reduce scrap and increase yield.
Aluminum Die Casting, Die Casting Components, Pneumatic Zinc Die Casting, Zin Die Casting,Aluminium Die Casting
NINGBO BRANDO HARDWARE CO.,LTD , https://www.brandopneumatic.com