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Hardware Network HC: Diamond abrasive in the stone processing industry in all areas of application of steady growth. The main driver of this growth is due to diamond synthesis technology, tools and machine tool manufacturing technology improvements designed to improve, so that the full cost reduction. These improvements enable the utilization of stone mining and production from the initial to the final stages of processing have been increased significantly. The full impact of these advances has increased the consumption of diamond, and in a variety of existing and newly developed processing technology in place of the traditional abrasive. This article examines the progress of stone processing technology, these advances did promote the natural stone for both interior and exterior building materials market is growing.
For construction and decoration of the availability of natural stone, for most countries with large reserves of raw materials for the situation is different. Until now, many smaller producers of manufactured stone stone is basically for local consumption, without opening up export markets. In recent years, global markets began to change markedly.
For processing stone extraction increased markedly. Global Mining in 1998 was about 47.4 million tons, representing an increase of 48% in 1997.
1993 stone mining is greater than 2 million tons of the country only three, they are Italy, Spain and China, the output of 750 million tons, 3.4 million tons and 2.5 million tons. 5 years later, this number has increased to seven countries: Italy, leading to 7.5 million tons; China rose to second place, production reached 6 million tons; Spain to 4.5 million tons in the third, and fourth place in India The output of 2.4 million tons. The remaining 2 million tons the market share of other three countries are Brazil, Portugal and Greece.
For these countries share of global production, global production of intercontinental distribution.
Stone Processing 1998 year 14 major countries of the finishing and semi-finished products processed stone aggregate, with nearly 15.2 million tons in 1997, the same level. Makes the 14 major countries around the world stone processing accounts 71.5%.
In this group, their development is a change. Material processing capacity in most countries is growing, but as expected, as reducing the amount of stone processing reflected in the extraction, Japan, Korea and Taiwan emerged in the processing of a downward trend.
Stone processing is to produce a clear global pattern. Three countries control the world market, that is, Italy, China and Spain, in 1998 these three countries account for a global natural stone processing capacity (before 14):
Stone processing capacity of 39.5%. Investigation showed that these areas, Europe and China in the use of methods and techniques have significantly different between. Culture, economic structure, foundation and technical differences, resulting in different processing technologies and equipment and tool design standards, and of these the performance of diamond tools with different requirements of industrial development.
Stone processing technology in China and the European Comparison
Recently, China has shown a stone mining and processing as the leading signs of the country. Today, China produces 240 different varieties of granite, 65% of its production [3], 60 species and 10 varieties of marble stone. In 1998, the production of hundreds of millions of square meters of all kinds of stone 1600 plate, for domestic and export markets. There are about 500 companies with mining and processing capacity of local stone, and the company continued to rise. The change in the number of rhythm is evident, however, the sharp increase in production has not been reflected in investment in machine tool technology. Most of the processing equipment still using old-fashioned, outdated production methods.
Mining method using blasting method, which means that only 5% to 8% of the stone can be used for processing. Many materials are often selected block back from the process, because many of them burst cracks and defects produced.
China granite are mainly used for floor and wall tiles. Chinese market with the use of these products is inconsistent. Because the world level, the stone remains largely been used in a building, rather than the civil standard. Stone in China and other civil construction materials such as ceramic, cement and timber in direct competition. Been treated for this purpose stone finish and dimensional accuracy of its quality requirements of course, is lower than the West as well-known stone construction project quality requirements.
The principal difference is that the labor market, China’s labor costs are significantly lower than in Europe; also reflected in the saw investment, automation and overall productivity level. Mining stones, China using a blasting method, the recovery is irregularly shaped stones, their size must be small enough to level with a small truck shipments, then stones by the short-distance transport to processing plants. Typically, on the appropriate tile for the floor tiles and plate processing, the general is made of multi-blade system based on reciprocating equipment, this system has five 1m in diameter and 5 1. 6m diameter of the blade are two combinations . Saw the production capacity is very low, because the cutting power by the equipment and simple tool technology restrictions. Typical of ordinary granite processing parameters are as follows: