AS-C439 customized single cartridge mechanical seal

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Background Knowledge：

1.Analysis of market status of China's mechanical seal industry
After years of technical accumulation and development, domestic mechanical seal industry manufacturers have matured their technologies and products in the field of low-end mechanical seals, and their performance has reached or approached the level of foreign products. They have been able to replace imported products in most application fields, and import substitution has been basically finished.
In 2020, China's mechanical seal products will account for 5% of extreme high-end areas, high-end markets (nuclear power, military, aerospace) will account for 20%, mid-end markets (petrochemicals, food, pharmaceuticals, etc.) will account for 30%, and low-end markets (Light mechanical seals, gasket seals, low-parameter machines) account for 45%.

2.Analysis of characteristics of mechanical seal industry
The mechanical seal industry has significant characteristics. Specifically, there are four main points: 1) The mechanical seal industry is small in scale, but it is an important part and requires high technical level; 2) The value of mechanical seals in the whole machine is low, and customers are not sensitive to prices. , Pay more attention to product quality and professional services; 3) Mechanical seals are single-piece, small-batch production, with high customer stickiness and stable cooperation; 4) In the field of high-end mechanical seal products, China lags behind foreign countries.

3.The development trend of China's mechanical seal industry
(1)Market development trend
Mid-to-high-end mechanical seals have obvious characteristics of personalized customization and industrial consumables. During the continuous operation of host equipment, there are continuous needs for regular replacement, seal upgrades, daily services, and spare parts procurement. End users attach great importance to the operational safety of host equipment and have high customer loyalty. As equipment manufacturers deliver mechanical equipment to end users, the scale of the stock of end users in the mechanical seal industry continues to expand. In the future, the market space will become more and more concentrated in stock markets such as repair, replacement, upgrade, and spare parts procurement of mechanical seals. It is the main source of profit for mechanical seal manufacturers. The incremental market is closely related to the investment in fixed assets in the downstream industry, and will be transformed into a stock business after the delivery of host equipment. The incremental market will always be an important part of the expansion of the stock market and the company's revenue for mechanical seal manufacturers.
Under a series of favorable policy environments, leading domestic mechanical seal companies continue to extend and expand the market of high-end mechanical seal products, compete with leading international sealing companies, and promote the development of high-end mechanical seals.In the future, with the continuous development of domestic enterprises, especially leading enterprises with strong comprehensive strength, the overall import substitution level of the domestic mechanical seal market is expected to be further improved, the localization rate of the high-end mechanical seal market will further increase, and the market share of domestic enterprises is expected to make greater breakthroughs.

(2)Theoretical development trend
The basic theory of sealing covers many disciplines such as fluid mechanics, thermodynamics, solid mechanics, heat transfer, materials science, and tribology. With the advancement of basic theories in various disciplines, sealing theory is developing in the direction of solving extreme application scenarios such as heat transfer, deformation, wear, and flow characteristics at micro-scale. The continuous development of sealing theory will strongly support the development of mechanical sealing products to large-scale, high-parameter, environmentally friendly and high-stability trends to meet the sealing needs of host equipment in extreme application scenarios.

(3)Technology development trend
Mechanical seal products rely on the technological development of computer, information, industrial automation, numerical control processing and other fields in the production links of R&D, design, test monitoring, processing and production. With the development of virtual reality technology, the digital design of mechanical seal products will become the mainstream direction; three-dimensional visualization technology, sensor technology, vibration and noise testing and other analysis technologies, as well as advanced measuring instruments and testing methods will be further promoted and applied in the testing and monitoring of mechanical seals; future nano-level machining, electron beam and ion beam processing, LIGA (Photolithography) technology, scanning tunnel microscopy and other high-tech processing technologies will support the simultaneous development of mechanical seal processing technology in micro-nano manufacturing, extreme manufacturing, and digital manufacturing.
In addition, intelligent manufacturing technology helps to improve the information intelligence, network integration and sharing of enterprise design centers, processing centers, production lines, and sales and service systems. It is a technical direction for enterprises to achieve a high degree of flexibility and integration in the entire product life cycle.
With the continuous deepening of the supply-side reforms of the petrochemical, coal chemical, metallurgical and other terminal downstream industries, the continuous improvement of energy conservation and environmental protection standards, the continuous development of project construction to large-scale, and the rapid development of high-end industries such as aerospace, mechanical seal products，the application field of mechanical seals continues to extend to ones of higher parameters and more complex working conditions. The market demand for high-end mechanical seal products is showing an expanding trend.
In China, after years of development，the mechanical seal industry has basically achieved import substitution in the low-end product market, and the high-end product market has also entered the stage of import substitution development, and has gradually begun to compete with foreign manufacturers in some high-parameter product areas. In the future, as domestic companies continue to make breakthroughs in R&D and technological innovation, the market depth and breadth covered by domestic high-end mechanical seal products will further extend and expand, and the localization and import substitution of high-end mechanical seals will continue to deepen.

（4）Market concentration development trend
After more than one hundred years of development, the global mechanical seal industry has shown a highly concentrated market pattern and stable specialized division of labor. Due to the late start of industrial construction in our country, the initial stage of development was mainly product imitation, and the idea of “emphasizing main engine and light supporting” during the planned economy was greatly influenced, and the cultivation of independent innovation ability was relatively backward. At present, the products of my country's mechanical seal enterprises are mainly concentrated in the middle and low end, and the industry as a whole is in the development stage of decentralization and low concentration. In recent years, some large-scale domestic enterprises have increased their market share through industrial mergers and acquisitions. In the future, with the continuous deepening of the country's supply-side reforms, the continuous improvement of energy conservation and environmental protection requirements, and the continuous advancement of industrial structure adjustment and upgrading, the market concentration of the mechanical seal industry is expected to be further improved.