In recent years, the production and quality of rubber seal products in China has gradually entered into a new stage and a new period. However, these are still far from meeting the development of other industries for the standardization of various types of rubber seals, serialization of products, in particular, compared with the international advanced countries, our products in terms of product quality, or product varieties, there are quite a large gap.
This issue of the Forum has focused on the concept of seal science, research content and research significance, the paper summarizes the present situation of rubber-plastic seal, mechanical seal and packing sealing technology, analyzes the gap between China and world advanced developed countries in the research level and new product development ability, and puts forward some suggestions on the future research of seal field in our country.
The overall competitiveness of China's sealing industry is not strong As we all know, in our country, sealing industry can be said to be the smallest industry, but the product can be matched with the use of large industries. Whether aviation, sailing, petroleum, chemical industry, or machinery, power generation, metallurgy, mining and so on, are inseparable from seals. In short, all organic, pump, pipe, valve place, are dependent on seals.
Therefore, although the industry is small, the area involved is very wide. In recent years, with the development of economy, sealing industry has been developing rapidly. However, unlike other industries, the sealing industry is developing fast, but the seal enterprise changes slowly. In the early 80, for example, in the late 70, only in Jiangsu, Zhejiang, Shandong has several manufacturers, and whether coastal, inland, or south, the north, everywhere visible seals factory, the entire sealing industry has been from the previous several, the development of more than 300 home, this development can be said to be very fast. But in terms of business individuals, many enterprises change little, the production scale circuitous, some even appear backwards, the scientific and technological strength not only not big increase, some are weakened, many manufacturers still hold the "four old" not put, that is, old products, old technology, old equipment, the old scale.
Of course, there are some enterprises, imitation imitation some products of strong ability, but in the entire industry with independent development of new capabilities of enterprises are not many. In terms of products, the vast majority of manufacturers or some winding gaskets, packing ring, packing and High-strength gaskets and other old products. A little innovative PTFE products, in technology and quality significantly behind abroad, such as poly PTFE packing, expanded PTFE belt. For four weeks, there are few new products.
- What Is A Sealing Piece
- Development Of Sealing Parts
- Classification Of Use Of Sealing Parts
- Storage Of Sealed Parts
- The General Knowledge Of The Sealing Parts Purc...
- Key Points Of Use Of Sealing Parts
- Factors Affecting The Sealing Parts
- Precautions For Sealing Parts
- Common Name Of Seals
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- Notes For Installation And Use Of Mechanical Seal
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- Selection Of Mechanical Seal Design
- Mechanical Seal Overview
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- The Working Principle Of Mechanical Seal