What is a progressive die for air conditioner fins?

The fin-adjusting progressive die, represented by high efficiency and long life, includes a die with 12 rows, 24 rows, 36 rows, 42 rows, 48 u200bu200brows, 60 rows, 72 rows, etc. The mold life is hundreds of millions of strokes. It has the characteristics of long mold life and high production efficiency. The fin progressive die covers household air conditioner fins, automotive air conditioner fins, industrial air conditioner fins, large-scale cold storage radiator fins, integral through-tube air conditioner fins and new special-shaped hole high-efficiency air conditioner fins Wait.　　The mold technology has been in line with international standards, and the mold level is equivalent to that of similar international molds. Some of the high-end high-quality molds are close to the international advanced level of similar molds. For example, a 36-row progressive die made by some companies, with a die life of more than 400 million strokes and a large-scale cold storage heat sink progressive die, can separately punch two different materials of aluminum and steel heat sinks. , The height of the flanging can be adjusted freely above 10mm, and the production scale and technical level are in a leading position in the country. Take the Φ7.2×60 row fin progressive die manufactured by some companies as an example. The die includes drawing, punching, blind punching, flanging, end profile cutting, edge cutting, longitudinal cutting, cross cutting and other steps. The manufacturing precision reaches 2μm, the mold is used on a high-speed punching machine, the punching speed is more than 260 punches/min, and the mold life is more than 300 million punches.