During the 12th Five-Year Plan period, a large number of infrastructure construction projects, high-speed traffic and other projects started one after another, will directly drive the market demand for broken machinery, China's crushing machinery industry will usher in development opportunities. Collierac machinery experts believe that in the future China's crusher industry will present two major trends. According to the “2011-2016 China Horizontal Shaft Crusher Market Research Reportâ€, compared with the international advanced level, the overall level of China's crushing machinery still lags behind, and it is still unable to compete with developed countries. Currently, domestic high-end users The basic spare parts for export products are mainly dependent on imports. In the future, China's crushing machinery industry needs to improve its own level of development and enhance its core competitiveness.
Flanges are a method of connecting pipes, valves, pumps, and other equipment to form a piping system, usually by welding or threading. It is also easy to clean, inspect or modify. Flanges are usually welded or tightened. Flange joints are made by bolting two flanges together and using washers between them to provide a seal.
Pipe assemblies may be bolted together between flanges. Flanges are used to connect pipes to each other, to valves, to fittings, and to special items such as filters and pressure vessels. Cover plates can be connected to create "blind flanges". Flanges are bolted together, and sealing is usually done using washers or other methods. Industries dealing with flammable, volatile, toxic or corrosive substances require special protection at flange joints. Flange shields can provide an additional level of protection to ensure safety.
There are many different flange standards worldwide. For simple functionality and interchangeability, these designs have standardized dimensions. Common world standards include ASA/ASME (USA), PN/DIN (Europe), BS10 (UK/Australia) and JIS/KS (Japan/Korea).
In most cases, standards are interchangeable, as most local standards have been aligned with ISO standards.
Flanges are also made in standardized sizes, usually in "flat", "convex", "mortise" or "ring joint" styles, but other ambiguous styles may be available.
Flange designs include "weld neck", "socket", "lap", "socket weld", "thread" and "blind flange".
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According to statistics from the machinery industry, in the first quarter of 2011, the value added of crushing machinery industry increased by 17.8% year-on-year. According to the relevant national policies, during the 12th Five-Year Plan period, China's total output value of the gravel machinery industry, industrial added value, and main business income will maintain an annual growth rate of approximately 12%. The proportion of modern manufacturing service industry has increased significantly. The proportion of modern manufacturing service industry revenue of the top 100 crushing machinery companies will account for about 25% of the main business revenue, and the growth rate of high-end crushing and disassembling equipment will be more than double the average growth rate of the industry as a whole. Market share will increase rapidly. In the future, the crushing machinery industry will become an important area for the upgrading of traditional industries, and the industry has great potential for development.
The crushing machinery industry will present two major development trends in the future:
First, broken machinery as a high-tech content and highly integrated equipment, with the continuous progress of materials science, manufacturing technology, computer information technology, products will be integrated into new technologies, new equipment replacement will gradually accelerate. In the future, crushing machinery will use the integration of multi-disciplinary technologies to improve design efficiency and design quality, and enhance the company's ability for independent innovation and market competitiveness. Crushing machinery will develop in the direction of digitization in the future.
Second, automated unmanned face mining is the development direction of underground or hazardous environment mining, comprehensive use of mining science, automation technology, communications technology, computer science and technology, automated unmanned face mining basic theory research and development of new technologies , new equipment, broken machinery will develop toward the direction of intelligence.