How wonepart seal develop?
How wonepart seal develop?
Seals are materials or parts that prevent fluid or solid particles from leaking from between adjacent bonding surfaces and prevent foreign impurities such as dust and moisture from entering the components inside the machine. The storage temperature of the seal is preferably below 30 ° C to avoid high temperature aging of the seal.
Classification of seals
1. Classified by function: shaft seal, hole seal, dust seal, guide ring, fixed seal, rotary seal; rod seal ,piston seal, hydraulic seals and so on;
2. Classified by material: Divided into butadiene rubber, EPDM rubber, fluorine rubber, silicone, fluorine silicon rubber, nylon, polyurethane, engineering plastics, etc.
Points for using seals
(1) Select the appropriate seal material and hydraulic oil, as well as the adaptability to the working temperature and the compatibility with the oil. (2) The geometric position accuracy (concentricity) of the sliding part relative to the seal is high, the material is good (such as hard chrome plating) and the surface roughness is thin, which can prolong the service life. ① The oil seals used for hydraulic pumps and motor journals not only require that the roughness of the sliding surface is within Ra of 0.25m, but also require that the surface be hard-chrome plated. In the specific use, the diameter of the oil seal lip must be appropriately adjusted according to the specific situation To the spring, make it moderately tight, and also use a mounting sleeve or a thin gasket to protect the sealing ring during installation to prevent the lips from rolling and twisting, causing the spring to slide out. ②Rolling processing methods are commonly used on the inner surface of hydraulic cylinder barrels, which not only improves the surface roughness, but also makes the surface cold-hardened, which is beneficial to extending the service life of the seal ring. In addition, the pressure used, the length and type of the sliding surface also have a great impact on the service life. Therefore, the "scheduled inspection" time should be decided based on these conditions. ③ The sealing surface should be well lubricated to prevent dirt from invading people. It is also necessary to use a fluid that meets the required cleanliness and proper installation methods.
Notes on seals
1. Please read the descriptions of each series of products before designing the grooves, and make sure that the product uses integral grooves or split grooves. In the process of installing the seals, pay attention to avoid the sharp edges. The seals must be installed in the overall grooves. With the help of installation tools, the designer must consider the parameters such as groove dimensional accuracy, surface roughness, and extrusion clearance. For details, please refer to the product instructions, diagrams, and size tables. 2. Before installing the seal, make sure that there are no impurities and cracks in the seal groove, and apply operating oil to the surface of the seal groove and the seal, respectively; install the seal gradually in order; avoid the sharp edges and straighten the seal during the installation process. Avoid twisting and skewing; if it is a split groove, tighten the gland finally.
Common names of seals
Seals, packings, mechanical seals, oil seals, water seals, packings, gaskets, sealants, soft packing, hydraulic seals, pneumatic seals, etc.In recent years, the production and quality of China's rubber sealing products have gradually entered a new stage and new period. However, these alone are far from meeting the needs of other industries for the standardization and serialization of various types of rubber sealing products, especially compared with advanced countries in the world. Considerable gap. We whopart mainly summarized the current status of rubber and plastic seals, mechanical seals and packing seal technologies from the concept, research content and research significance of seal science, and analyzed the research level and new product development capabilities of China and the world's advanced developed seal technology. Gaps, and put forward several suggestions on the focus of future research in the field of sealing in China.
It is well known that the overall competitiveness of China's sealing industry is not strong. In our country, the sealing industry can be said to be the smallest industry, but the products can be used in conjunction with large industries. Whether in aviation, marine, petroleum, chemical, or machinery, power generation, metallurgy, mining, etc., seals are inseparable. In short, everything that is organic, pumps, pipes, valves depends on seals. Therefore, although the industry is small, it involves a wide range. In recent years, with the development of the economy, the sealing industry has also developed rapidly. But unlike other industries, although the sealing industry is developing fast, the sealing companies are changing slowly. For example, wherepart has researched from various original NOK, Hallite, KYB, SKF brands to independent procurement of raw materials for processing. This development speed can be said to be very fast. As far as quality management is concerned, most enterprises rely on the proficiency of operators to make good products and produce them in accordance with standardized process standards. It is also a necessary management method. Many cooperating manufacturers have obtained the ISO9000 series certification, and the process documents, quality control plans or operation guidance documents and equipment management documents specified within them are also very persuasive, slowly catching up with the footsteps of Europe and the United States.Analysis of the advantages and disadvantages of China's sealing industry among its international counterparts. In summary, from the advantages, we have advantages in 3 main areas: the advantages of raw materials, whether it is asbestos, graphite, and other non-metal materials, we are a major producer, This resource is lacking in many countries. Price advantage At present, the seal is still a labor-intensive product, and the manufacturing cost in China is low (U.S .: US $ 1,500 / person · month for operators; Japan: 200,000 yuan / person · month for young workers, more than 300,000 yen for seniors; we Below 1000 yuan / person · month is more), the current victory of the seal competition 60% depends on price factors. In the domestic market, the phenomenon of supporting the host (OEM) is already obvious, especially in the international market. With the further deepening and improvement of domestic reforms. The role of price in the maintenance market is becoming increasingly apparent. Humanistic advantages At present, the marketing of the domestic market for seals mainly depends on interpersonal relationships. We are uniquely endowed by nature and harmony, and we have many advantages under the same quality conditions in the domestic market. From the perspective of market competition, with these three advantages, we can embark on the road to competition.With the development of the times, on the one hand, we are in order to meet the increasing requirements of human beings for environmental protection. The ISO14000 standard has begun to attach importance to the seal companies we cooperate with, and people's requirements for seals are becoming increasingly strict. Just as the entry of a large number of joint ventures has brought new quality requirements and new environmental protection concepts. On the other hand, the new standards objectively bring about market redistribution. The new and more stringent quality standards will become the biggest advantage of China's sealed product exports; we have begun to move towards a mature mindset, do market, manage, brand, and culture. The market is not a cake, but a field. It needs to be paid, cultivated, and loved. In terms of quality awareness, after-sales service, product packaging, equipment investment, etc., reference is made to ISO9000 standards, and each company naturally has its own evaluation. Although there are management problems with "three-point technology and seven-point management", it is easy to improve as we have confidence.
We www.wonepart.com will concentrate on developing new high-quality products to meet your needs. If you have any seals, repair kits, hydraulic pump and parts, machinery engine spare parts needs, please contact us by email info@wonepart.com or whatsapp:+86-15860751932.
