For high-speed, high-pressure, wide temperature range domain requirements under seal, China actively carry out scientific research institutions and related materials research products, has formed a pattern of serial products, solve the hydraulic, pneumatic sealing technology industry on the need, the level of the products upgrade.
It is reported that the self-developed high-performance sealing materials and products, has been in the aerospace, aviation, steel, shipbuilding, industrial machinery and other civilian areas has been widely used in the weapons industry, the special transmission vehicles sealed by grinding sets, high pressure high-temperature gas tight seal has been in a Cypriot applications, radiation protection and reciprocating seal sealing materials on the ship are also special promotion.
My static sealing materials and products have reached very high levels. Static seal relies on the combination of the closure of the gap in order to achieve sealing role, according to different media, different temperature, different seal application environment to choose. Static sealing products including different sizes seals (O-ring, Y-ring, V-ring and other Gechongfeibiao the gaskets, seals, etc.), mainly used for various planar static sealing, sealing groove angle end I. , cylindrical surface static sealing, dust seals, vehicle window frames, door seals, and so on, for a variety of new special equipment, aerospace technology, civilian vehicles, such as a high-performance seal products.
Rubber products to a broad range of temperature. Which extended temperature domain of a special high temperature resistant silicone rubber type, erosion-resistant, high-strength, ultra-low-temperature type, and further research and development with the ability to provide all kinds of O-type, special-shaped seals, gaskets and other sealing products ; special NBR with oil, high and low temperature resistance, high strength, high flexibility excellent performance of the material mature technology, process stability, and is resistant to the majority of hydraulic oil, machine oil, lubricants, the application temperature range, typically -50 ℃ to 130 ℃ short resistant to 150 ℃ temperature can be used in the manufacture of various fuels in the work or activities of the fixed seals, gaskets and various pieces of the trap door, gaskets, sealing, etc.. Product specifications can be provided, and provide products installed life prediction techniques; special fluorosilicone rubber materials and products made from the small seals in the fuel oil and steam medium and long-term work of the air temperature of -55 ~ 200 ℃ , the short-term temperature up to 250 ℃, and naphthalene-based fuels, mineral oils, gear lubricants, such as two-sided medium -55 ~ 150 ℃ meet the long-term, short-term use of 165 ℃ requirements.
High-speed rotary sealing products are designed using the principles of fluid mechanics hydrodynamic seal. The structure of the sealing and lubrication role of organic unity, the lower lip of temperature and friction and wear, their life expectancy than similar products improved several times over. Use low-friction formula made of fluoro rubber hydrodynamic seal not only adapt to the higher-speed and the use of harsh conditions, and to reduce the processing requirements of the axis, to adapt to 0.25 mm or greater eccentricity of life than the average The seal was greatly extended, line speed has been adopted by 20 to 25 m / s, 0.01 ~ 0.05 MPa pressure, temperature? -40 to 180 ℃, 800 h bench examination. GB can provide the products and performance evaluation, assessment and other services.
High-pressure reciprocating seal products is a high pressure resistance, wear resistance, low friction seal a combination of systems. Working media pressure increased, sealing pressure increases, so as to ensure reliable under the conditions of high pressure seal. High-temperature, high-pressure gas sealing materials and products, hermetic pad as special equipment of the key parts also have been making considerable progress, and to overcome the existing hermetic pad its shortcomings, can guarantee that special equipment in a variety of special conditions hermetic closure gas pad reliable, adaptable, easy to operate, interchangeability good. Strong anti-corrosive lining material is sealed in multiple promote the use of special equipment.
-- Also: sealing the sub-sectors total two, that is, dynamic and static sealing sealed talking about here mainly refers to static sealing. As we all know, in our country, sealing industry can be said to be the smallest sector, but the products are complementary with large-scale industrial use. Whether aviation, marine, petroleum, chemical, or mechanical, power generation, metallurgy, mining, etc., are inseparable from the seal. In short, all organic, pumps, control valves, are dependent on seals. So industry is small, involves a very wide surface.
In recent years, along with economic development, to seal the development of the industry soon. However, unlike the other sectors, to seal the fast development of the industry though, change is slow sealed enterprises. For example, the late 1970s early 1980s, only in Jiangsu, Zhejiang, Shandong several manufacturers, and now both the coast and the mainland, and the South, the North, everywhere sealed Factory, the entire industry has been sealed several previous, development to the current 300 number, which can be said that the pace of development has quickly. However, in terms of individual enterprises, and many enterprises do not change, the scale of production circuitous not before, and some have even retrogressed, scientific and technological forces not only no big increase, but in some weakening, many manufacturers still holding on to the four old letting go that the old products, old technology, old equipment, old scale. Of course, there are also some enterprises, generic copies of some products stronger ability, but in the entire industry have the independent ability of enterprises in developing new products not many.
Product terms, the overwhelming majority of manufacturers or some of spiral wound gasket, packing rings, and high-strength pads Pan-gen old products, but still around 20 years ago, the development of expanded graphite and ancient and near out, make an issue of the asbestos ban seldom out of the circle. PTFE some innovative products, in technology and quality lagging far behind in foreign countries, such as the Pan-gen-tetrafluoroethane, with PTFE expansion. Looking at four weeks, and very few new products.
On the technical terms, the majority of enterprises smaller proportion of scientific and technological personnel, many enterprises lack the genuine Kebanchujuan technical staff, technical forces are weak, and therefore the enterprises in the development and the corresponding lack of ability. Such as the Pan-gen-tetrafluoroethane, modeled after the start, but add in a PTFE packing it. Now basically resolved the problem of the color of the uniform, but the connection between the polymer PTFE problems have not been fundamentally resolved. It is precisely because of this, technology has not been dealt with, resulting in tensile strength at this stage of domestic and tetrafluoroethylene poor. To solve this problem, not necessarily a good grounding in it is very difficult. As high-strength graphite composite panels, in the thorn-shaped, have greatly improved connectivity problems have been the better solution, but the problem remains unresolved-viscosity, low sulphur corrosion products are not produced, and more meaningful low leakage rate on some products not known. After the European Union since the establishment of the Joint powerful, to raise the EU and the establishment of the new European Seal quality standards, replacing the previous rely on the United States enacted a series of fluid Association standards. In the new Europe in a sealed quality standards and the importance of leakage rate. Chinese products now in the leakage rate of 10-1 mg / s, while Europe has already emerged leakage rate of 10-4 mg / s of high-strength graphite composite plate!
On the terms of equipment, the majority of companies have only a few old-weaving machine, several of the homemade winding machine, simple and machine-shearing machine, and so on, rely on the ability of older workers to organize production and many manufacturers equipment in the long-term production task is not saturated. On the quality of management speaking, the vast majority of enterprises rely on operatives proficiency products to do a good job, not in accordance with the norms of production standards, nor necessary management tool. While many manufacturers have made the ISO 9000 series certification, but its internal documents under the process, quality control plans or operating guidance documents and equipment are often empty unable to document management, and fall far short of international standards.
On the scale of speaking, the vast majority of enterprises in the sales below 5 million yuan, 10 million of the few, 10 million more than a handful. Frankly, many manufacturers sales in a majority of the Association of procurement, the real proportion of their production is not very high. So, from the current situation, many small enterprises with foreign to some well-known companies, manufacturers competition.
Chinas sealing industry in the international peer in which the advantages and disadvantages of
To sum up, our sealing industry less competitive, but it is of some small businesses, we also have some stronger companies or factories. Although several well-known foreign large enterprises, but also to have more small businesses, there are many professionals do the sealing of commercial business to the Chinese company to purchase products to the country or countries for sale, on the entire international counterparts computerize its control, Advantages and Disadvantages are both strong.
From the advantages of speaking, we have three major advantages: raw material advantages of both asbestos, and graphite and other non-metallic materials, we are producing country, the lack of resources in many countries.
Current price advantage seals or labor-intensive products, Chinas manufacturing costs low (the United States: operatives 1,500 US dollars / person-months; Japan: young workers, 200,000 yen / person, the oldest 300,000 yen above; We 1,000 yuan / person-months following more), the seal of the competition to win 60 percent depending on the price factor. In the domestic market, supporting mainframe OEM (form), this phenomenon is very clear, especially the international market. With the further deepening of domestic reforms and improved. Price factors in the maintenance of the market playing an increasingly prominent role.
Humane advantage of the current seal the domestic market mainly rely on marketing relationships, the unique climate and the people, in the domestic market under the conditions of the same quality we have many advantages.
Competition from the market point of view, this three advantages and can go on the road to the competition.
Conversely, the disadvantage may be more
The first reason is the technical backwardness. On the one hand, in order to adapt to humans is increasingly high on the environmental protection requirements of the ISO 14000 standards for Chinese enterprises have begun to attach importance to the people of the requirements of increasingly stringent sealed. As a large number of joint ventures to enter, has already brought a new quality requirements and the concept of environmental protection. On the other hand, new standards brought on the market objective of the re-allocation. New, more stringent quality standards, China will become the largest export products sealed obstacles and become foreign enterprises into the Chinese market trump card. Do not attach importance to the enterprise technological progress in the next five years will be eliminated.
And the technology is the main body of people. On the status quo, the sealing industry is relatively loose, individual and smaller, thereby Canglongwohu less capacity, lower overall quality of employees.
Another philosophy is likely to exist on the correct necessary. Capitalism for more than 200 years, which many of our colleagues, that competitors had experienced a continuation of four generations already got rid of from poverty fairly well-off for the rich psychological, to mature mentality, market and do management, so Brand, do culture. And our businesses, because at this stage there are so many repeat established, major reason for this is because many people take advantage of the reform process in the various norms of the status quo is not eager to strive for the rich. This is a very natural process turn, the capitalist countries also have such experience. But in front of us is how to accelerate the evolution from the rich entrepreneurs eager to strive for, to a mature business culture.
On the basis of this careful scrutiny, it is not difficult to see our individual and corporate behavior in a variety of defects. Joint lack of competition increases, with the result that the market slide, is the operator of the first big problem. In fact, he stubbornly low prices, the blind pursuit of orders, the result would be to destroy the market. The market is not cake, but land must be made, need to nurture, care needs will be fruitful before long.
In the sense of quality, service, product packaging, equipment and so on in the reference ISO 9000 standard, and all enterprises owned natural evaluation. Although there are two-thirds, 11.07 management management of illnesses, as long as confidence is still easy for improvement.
Under the new situation, how are we to do?
WTO is the result of the global economic integration, as a strong fourth of the global population, the Chinese market is the most attractive market. Accession to the WTO should be the result of the China market is to promote the standardization and to comply with the laws of the market under the premise of the market and product sharing. Blindly one-way input or output, failed. As the Chinese people and that the industry colleagues to stick to the domestic market share and expanding exports, worry about music then.
A number of large foreign companies have already come for the Chinese market, is not a distributor in China, is set up wholly-owned or joint venture holding enterprises. For example, Germanys Boheman (BURGERMAN) Klinger (KLINGER), Spain, Romania and Mongolia too (MENTERO), Japan (NICHIAS), the United States Al Gore (GOAER), Chek disabilities Shield (CHESTERTON). Even South Korea is not a large-scale pads, Pan-gen manufacturers, but also to engage in Beijing products exhibition, a desire to usurp the market.
We do not know many companies in the industry sector trends, product technology and development trend of little progress, the lack of cohesion within the industry and team spirit, the lack of market awareness, and individual strength was also weak. Therefore the face of many foreign enterprises to enter China, as it has done disunity, loners situation to be changed. Promoting Chinas economic system reform at this stage of dynamic reform and social change, trade management and forms management in the agencies themselves also change. Chinas status quo is the business and government, enterprises, and enterprises, enterprise and the market, the old order is a change to the new model. How to combine national conditions, reference and learn from foreign experience, the establishment of trade associations or chambers of commerce have some form of restraint and leadership organizations, is the present industry cooperation loose, individual strength is not strong resistance and improve external competitiveness, and the necessary means to protect the market. WTO promoting fair competition on the other hand, we can not rule such protection: Spain on the sealing industry associations and valve closely tied to industry associations, in order to avoid external interference, the European Association for the establishment of a new sealing quality standards is also to use the technical advantages and external drive products; and the United States to establish three FAW Group Corporation ISO 9000 series of standards is the result of purification of the market.
Hence the establishment of a new quality standards is the first step in immediately can try. At this stage, the act should be is a quasi-market, semi-government, should be absolutely patriotic. And the establishment of the Association, and take the road of working together, is a big and difficult issue. And the establishment of the Association that there is a need for government support, such as the petrochemical Association, the National Petrochemical Corporation, which GM, and the results should be in accordance with the laws of the market is under the operation of low-income, and even specialized services nonprofit agencies, and research and by the technical services, research and development, promotion results, information services and other forms combining the joint attempt to large and medium-sized enterprises and projects for bulk orders, so tender services. In a fair competition in the market means service and support enterprises.
At the same time do a good job sealing industry and other areas of collaboration, such as the automobile industry Seal sector, the sealing industry Pneumatic Hydraulic sector, the Association is enhanced vitality, but also the expansion of existing markets, promote technological progress and effective way. How to go down this road, that we need the wisdom and pay.
In the future, the enterprises should direction, it will also have to divide. As individual enterprises must be soberly aware that their foreign counterparts to enter the domestic market has brought us immense pressure. A new awareness of their own, assess their strengths and establishing their own development direction. Must seize little time to adjust industrial policy, in particular the small and medium enterprises.
Differentiation will be three directions: from the production, marketing and sales of professional agents to and from the all-encompassing industry specializing in the operation; third for joint and mergers and acquisitions, including a joint foreign and establish scale enterprises, and leading representatives of the domestic The sealing industry. In the new structure, product cost will be in decline among peers are none, the joint foreign and protect the interests of the new market situation.
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