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General seals are fundamental components that prevent the leakage (or intrusion) of media. As a typical general equipment component, their application fields almost cover all industrial sectors, offering broad market potential. General seals have a strong consumable attribute and face technological iteration requirements, possessing the advantages of continuous stock market and growth in incremental market.
General seals are used to prevent fluids or solid particles from leaking between adjacent joint faces or to prevent external impurities such as dust and moisture from invading the internal parts of machinery and equipment. Machinery and equipment used in process industries commonly have general seals, determining the safety, reliability, and durability of the machinery. General seals are crucial for the normal operation of process industries, with 40% to 50% of daily machinery maintenance work being related to shaft seal maintenance.
In the industry chain of the general seal industry, the upstream basic raw materials mainly include categories such as steel, plastics, and rubber. In the midstream, general seals are indispensable components in the manufacturing industry chain, widely used in core mechanical structural components such as pumps, valves, bearings, hydraulic parts, oil cylinders, and engines, playing a crucial role in ensuring the stable and efficient operation of mechanical equipment. The downstream applications of general seals are diverse, ranging from the ocean to space, from stationery and home appliances to heavy machinery, making them an essential part of daily life and modern industry.
The materials of general seals need to have good compactness, appropriate mechanical strength and hardness, good stability under working media and temperature conditions, and need to meet performance requirements such as low permanent deformation and good wear resistance.
Common sealing materials are divided into the following five categories:
Fiber and elastoplastic materials
Asbestos, leather, rubber, PTFE plastic, etc., are the main materials for making gaskets, soft packing, molded packing, seals, etc.
Friction reduction and wear-resistant materials
Carbon materials, bearing alloys, hard alloys, surfacing alloys, engineering ceramics, spraying materials, etc. They have good heat and cold resistance and high thermal conductivity, used as friction pair materials for dynamic sealing devices such as mechanical seals, piston rings, and gap seals.
Metal and non-metal materials
Non-ferrous metals, ferrous metals, hard alloys, precious metals, etc., used to make other parts of the sealing products except for friction pairs.
Liquid materials
Polymer materials such as liquid sealants, anaerobic adhesives, hot melt adhesives, etc.
Oils and solid lubricants
Used in sealing lubrication systems and as impregnating agents and additives for soft packing.
Zhaoqiang's general seals are essential components in various industries, used to prevent fluid and gas leakage in mechanical and pipeline systems.
Zhaoqiang's general seals commonly use materials such as rubber, silicone, fluororubber, PTFE, and metals, each with its excellent specific properties like flexibility, chemical resistance, and temperature resistance.
Zhaoqiang's general seals are crucial for maintaining system efficiency, ensuring safety, and preventing environmental pollution. They are widely used in industries such as automotive, aerospace, oil and gas, chemical processing, and pharmaceuticals, demonstrating multifunctionality in modern industrial applications.
