Development Status and Trends of Large Casting Industry
Since the 1960s, casting industry around the
world has developed rapidly, but in the 1980s, the growth rate
slowed down. For more than 20 years, large casting production
in the United States dropped from 13.88 million tons in 1981 to
11.81 million tons in 2002. In Japan, it also decreased slightly,
and in Germany it was essentially flat.
The main reasons for this phenomenon are
the slowing down development pace of several pillar industries
(automotive, construction, machinery, etc.) in industrialized
countries and the competition in other engineering plastics,
composites, and ceramics and so on.
In addition, technological progress is one of the reasons for the
slowing down output of metal
castings. The most typical example is the rapid promotion of
continuous casting and rolling process in the steel industry, which
made the traditional ingot mold consumption decrease significantly;
the improved strength of castings made castings thinner and lighter;
the technological advances in the anti-wear, reducing wear and
corrosion-resistant materials improved the service life of the
castings greatly, which also decreased the quality demand of
China is a developing country. For more than 20 years since the
reform and opening up, with the rapid development of automotive,
construction, machinery, energy and other major pillar industries,
the output of castings increased more than 2 times from 500 million
tons in 1981 to 16.26 million tons in 2002, and makes China rank
first in the world consecutively since 2000. The output increased
more than 10% consecutively in 2001 and 2002, and more than 15% in
2003 and 2004.
However, in terms of the per capita output
of castings, Germany is 56kg, the United States and Japan are both
45kg, and China is only 12.5kg; As for labor productivity, the
United States and Germany are 45 to 60 tons / person per year, Japan
is 60 to 85 tons / person per year, in China, it is only 10 tons /
person per year (few units are up to 30 tons / person per year).
Thus, China's foundries still have considerable room for
development; the output of iron castings is 70% to 80% of the total
casting production, which should be further developed.
During the first 30 years of the 21st
century, iron production in China is still expected to develop
greatly, but when it enters the last half century, the output of
castings will also be faced with the slowing growth or even decline
phenomenon faced in industrial countries now. Therefore, as a
professional iron foundry, Dandong Foundry will focus on improving
casting production and the quality of iron castings and reducing
energy, raw material consumption at the same time. And strive for
survival, development on the basis of improved quality.