Abstract In developed countries, cemented carbide tools have now dominated the tool, accounting for 70%. High-speed steel tools are shrinking at a rate of 1% to 2% per year, and the current proportion has fallen below 30%. The proportion of superhard tools such as diamond and cubic boron nitride is about 3%. ...
In developed countries, cemented carbide tools have now dominated the tool, accounting for 70%. High-speed steel tools are shrinking at a rate of 1% to 2% per year, and the current proportion has fallen below 30%. The proportion of superhard tools such as diamond and cubic boron nitride is about 3%. Among the knives consumed by the domestic hardware manufacturing industry, the proportion of cemented carbide tools has reached more than 50%, and the problem of disconnected supply and demand structures has been very serious. The consequence is that a large number of surplus high-speed steel tools are exported at low prices or domestically, while high-efficiency cemented carbide tools have to rely on large imports, and imports have risen from $0.9 billion in 2001 to $450 million in 2005. 3.6 billion yuan). According to Luo Baihui, secretary general of the International Model Association, China's current annual tool sales are 14.5 billion yuan, of which the proportion of cemented carbide tools is less than 25%, which is not only far from the structure of the international market tool products, nor can it meet the domestic manufacturing industry. The growing demand for carbide tools.
China currently produces about 80,000 tons of high-speed steel, accounting for about 40% of the world's total output, and consumes a lot of precious resources such as tungsten and molybdenum. This blind expansion and low level of repetition have resulted in a large surplus of high-speed steel tools produced and have to be sold at low prices, resulting in a low profitability of a large number of tool manufacturers.
China's current annual output of cemented carbide is 16,000 tons, which also accounts for about 40% of the global total. However, the highest added value of cutting inserts in cemented carbide products is only 3,000 tons, accounting for only 20%. This situation, on the one hand, has caused insufficient supply of cemented carbide tools that are urgently needed in the country, and on the other hand, the precious cemented carbide resources have not been fully utilized.
In terms of economic benefits, China's annual sales revenue of cemented carbide is about 560 million US dollars; Japan is only 40% of China's output, but the sales revenue is as high as 2.633 billion US dollars, of which the proportion of blades (knives) is as high as 72%, so that resources have been obtained. Full use, the company has also achieved good results. China's tool industry should get some useful inspiration from it.
At present: the imbalance of the tool structure is that the production tool and the demand are not right. For example, the carbide cutters that users need are large, but the high-speed steel cutters are over-produced; the high-efficiency cutters that are urgently needed in modern manufacturing are large, but the low-grade standard cutters are overproduced.
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