1. With the shift from oil development to oil fields in the interior and offshore oil fields, and the development of thermal power and hydropower and nuclear power from 300,000 kilowatts to less than 300,000 kilowatts in the power industry, valve products should also change their performance in response to changes in equipment applications. parameter;
2. The urban construction system generally uses a large number of low-pressure valves, and develops to environment-friendly and energy-saving types, that is, the low-pressure iron gate valves used in the past have gradually turned to environment-friendly rubber sheet valves, balancing valves, metal sealing butterfly valves, and midline sealing butterfly valves, to transfer oil, The development of gas transmission projects in the direction of pipelines requires a large number of flat gate valves and ball valves.
3. The other side of energy development is energy conservation. Therefore, from the perspective of energy conservation, steam traps must be developed and developed to subcritical and supercritical high parameters.
4. The development of the power station is proceeding to large-scale development. Therefore, large-diameter and high-pressure safety valves and pressure reducing valves are required. At the same time, valves must be opened and closed quickly.
5. For the needs of the complete set of projects, the valve supply has evolved from a single variety to multiple varieties and multiple specifications. The need for a valve for an engineering project is increasingly provided by a valve manufacturer.
Epoxy resin is a kind of polymer material with high performance. It is a two-component system composed of epoxy group and amine group, which forms polymer compound by mixing and reaction. It has strong adhesive force, corrosion resistance, heat resistance, electrical insulation and mechanical strength, and is widely used in aviation, aerospace, automotive, construction, electronics, ships and other fields.
The preparation process of epoxy resin is to mix epoxy resin monomer and amine Curing Agent in a certain proportion, and react at a certain temperature to form a polymer compound. Epoxy resins with different properties can be obtained by changing the type of monomer, the type and proportion of curing agent.
The advantage of epoxy resin is that its properties can be adjusted according to needs, and materials with high strength, high stiffness, high toughness, high temperature resistance, corrosion resistance and other characteristics can be prepared. Because of its excellent properties, epoxy resins are widely used in various fields. For example, in the aerospace field, epoxy resins are used in the manufacture of aircraft and rocket structural parts, composites, coatings and adhesives; In the automotive field, epoxy resins are used in the production of automobile body and engine parts; In the field of construction, epoxy resins are used in coatings, floors, waterproof materials and so on.
In addition, carbon fiber reinforced epoxy resin composites are also one of the most widely used epoxy resin products at present. Carbon fiber reinforced epoxy resin composites have the advantages of high strength, high modulus and low density, and are widely used in aviation, aerospace, automobile, sporting goods and other fields.
In general, epoxy resin is a high-performance material with a wide range of application prospects, and its properties can be adjusted according to needs, and it is widely used in various fields.
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