The coatings industry is in full swing, and various new coatings are widely used. Although acrylic polyurethane topcoats have been used in the construction market at the beginning, such as weather resistance and water resistance, acrylic polyurethane topcoats are used as health coating materials. Still quickly obtained a large number of loyal users, the surface of the metal structure coated with acrylic polyurethane topcoat has also greatly improved the service life, and also played a very good protection for the main body of the building.
Acrylic polyurethane topcoat is based on epoxy resin. It has the characteristics of zero VOC coating, easy recycling, and cost saving. After being applied to the automobile manufacturing industry for the first time, it immediately became the most popular coating for manufacturers and users. Loading materials.
Of course, the coating capacity structure is embodied in many different aspects and has a good application ability. Ship pipeline anti-corrosion appearance data needs to be solvent-free, powder-coated spray materials to facilitate construction and appearance protection, and acrylic polyurethane paint as a new coating that can be sprayed and melted into a film can meet this well. Engineering needs. Metals used in marine vessels are often exposed to more UV and seawater erosion than other industrial objects, and the degradation rate is extremely fast, while acrylic polyurethane coatings are extremely inferior in weather resistance, abrasion resistance and corrosion resistance, as well as gloss and color retention. Both provide good performance maintenance and cost control for ship production and use.
Acrylic polyurethane coatings are widely used in pipelines, storage tanks and various metal components in heavy industries such as petroleum, chemical, oil refining, gas, municipal construction, and water conservancy. It can effectively reduce the corrosion of various media and environment on storage tanks and pipelines, prolong the service life, and has low cost, good air drying and convenient construction. It plays a significant economic benefit and society for reducing environmental pollution and saving investment. benefit.
The future global coating production capacity structure is also reflected in marine anti-corrosion applications. Ship steel pipes are almost universally applicable to various structural systems of ships, such as seawater pipelines, steam and wastewater pipelines, fuel oil pipelines, sewage pipelines, etc. It is known that the powdered spray coating of acrylic polyurethane coatings and the characteristics of easy recycling without loss make it more suitable than other coatings. Coating and protection of steel pipes for ships. With the improvement of anti-corrosion technology of acrylic polyurethane coatings and the optimization of performance, the future application of marine polyurethane systems in the acrylic polyurethane coating market will also occupy a considerable share.
Many modern sulfur recovery unit process waste heat recovery exchangers operate in high-temperature environments. These exchangers are associated with the thermal reactor system where the tube-sheet–tube-ferrule assemblies are exposed to gasses at temperatures approaching 3000°F3000°Fâ . Because sulfur compounds are present in the process gas, the carbon steel tube sheet and tubes in the assembly will be deteriorated by sulfidation as the operating metal temperature rises above 600°F600°Fâ . Ferrule systems are used to protect the carbon steel from exposure to excessive temperatures. The temperature distribution in the steel tube-sheet–tube-ferrule system is affected by process gas flow and heat transfer through the assembly. Rather than depend on [assumed" heat transfer coefficients and fluid flow distribution, a computational fluid dynamics investigation was conducted to study the flow fields and heat transfer in the tube-sheet assembly. It was found that the configuration of the ferrule installation has a large influence on the temperature distribution in the steel materials and, therefore, the possible sulfidation of the carbon steel parts.
High Pressure Heat Exchanger Tube
High Pressure Heat Exchanger Tube,High Pressure Seamless Tube,High Pressure Stainless Steel Tube
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