Factory Sealed

Our international peers in the sealing industry, in which analysis of the advantages and disadvantages of

In recent years, along with economic development the development of the industry quickly sealed. However, unlike other industries, sealing Although the rapid development of industry, firms are Sealing slowly changing. For example, late 70's early 80's, only in Jiangsu, Zhejiang, Shandong, some manufacturers, but now both on the coast and inland or the South, the North can be seen everywhere factory sealed, sealing the entire industry has been the past few developed to the present 300 as much as you can say that the pace of development is very fast, but with the point of view of businesses, many companies changed little detour is no pre-production scale, and some setbacks, even there is no greater scientific and technological strength not only to increase, and some otherwise, to weaken, many manufacturers still have the "Four Olds" and hold, that is, old products, old technology, old equipment, the age scale. Of course, there are some companies, counterfeit products imitation the ability of some stronger, but throughout the industry, develop new products with independent legal capacity is not much.
Total points sealing the two industry, namely, static seals and dynamic, I'm talking about here refers mainly to the static seal. As we all know, in our country, industry Sealing can say that the smallest of the industry, but the products are complementary to large-scale industrial use. Regardless of the aviation, marine, oil, chemical, or mechanical, power generation, metallurgy, mining, etc., are inseparable from the seals. In short, any organic material, pumps, piping, valves, seals depend places. So the industry is small, the people involved is very wide.

The product is concerned, the vast majority of manufacturers, or a number of spiral gasket, packing ring, packing, and high resistance joints and other old, but still around 20 years ago, the development of expanded graphite and the elimination of old and close, disable the asbestos scandal, rarely out of the circle. Something a PTFE products new technology and quality control far behind foreign countries, such as packing of PTFE, expanded PTFE tape. Looking around, new products very few.
Based on technical question, the smallest proportion of scientific and technical personnel, many companies have no real curriculum, technical personnel, the technical force is weak, so companies in the lack of adequate capacity development and transformation. Such as PTFE packing started when the imitation only added in the PTFE packing only. Now basically solved the problem of color uniformity, but the connection between the problems of polymer PTFE have not been fundamentally resolved. It has never been through this process the blade, resulting in poor tensile strength at this stage Chinese-made black PTFE. I have to solve this problem, there is no ground truth is very difficult. composite dishes, such as high strength graphite, the gills in the form of connectivity problems to a large extent have improved been well resolved, but the issues of combating remain unresolved sticky, corrosion products low sulfur have not been produced, while that the low rate of significant leaks super - products that do not hear any investigation. Since its inception, the European Union, the joint caused by a strong, urging the EU to improve and create a new European mark of quality standards, replacing the previous unit to the U.S. a series of standards developed by the Institute of fluid. In the leakage rate new European quality standards in the emergency seal and emphasis. Of the products of China are now the leak rate in general 10-1mg / s level, while Europe has a leak rate of 10-4 mg / s high-strength graphite composite plate class!
The case of equipment is concerned, most companies have only a few old knitting machines from Taiwan, several home-made winding machine, simple machines and cutting Machine wash teeth and so on, depends on the ability of older workers to organize production, while many manufacturers of equipment for production long-term task is not saturated. In quality management is concerned, the most competitive companies depend on the operator to make the products, there are no rules in accordance with standard production processes or necessary management tool. While many manufacturers have obtained the ISO9000 series certification, but internal processes of the required documents, the quality control plan or operational guidance document and document management devices was often tenuous and far from international standards.
On the scale level, the vast majority of company sales to 500 yuan, 10 million of the few, only a handful more than 10 million. Frankly, many manufacturers in a large proportion of sales are outside the co-sourcing parts, the actual proportion of its own production is not very high. Therefore, from the current situation in perspective, many small businesses have difficulty with any known foreign companies, manufacturers compete. About the Author

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