Sistemas de revestimiento  Fabricantes, Comerciantes, Proveedores

Walther Trowal lleva desarrollando y produciendo soluciones de proceso para el mecanizado de superficies desde 1931. Comenzando con la tecnología de acabado por vibración -el término "acabado de barriles" deriva de "Trommel Walther"- Walther Trowal ha ampliado continuamente su gama de productos.
Esto ha dado lugar a una variedad de sistemas y máquinas para el acabado por vibración y el granallado, así como para el revestimiento de piezas pequeñas producidas en serie.
Walther Trowal implementa soluciones de sistemas completos que se integran perfectamente en los procesos de producción interconectados de los clientes. Esto incluye toda la tecnología de proceso adaptada a los requisitos específicos de las piezas de trabajo, en la que las máquinas y los equipos de proceso se complementan perfectamente.
Dado que cada pieza y cada secuencia de producción plantean exigencias especiales a la tecnología de proceso, los experimentados especialistas del departamento de pruebas elaboran, junto con los clientes, la tecnología de proceso óptima en cada caso. El resultado: piezas con superficies que corresponden exactamente a las especificaciones ... con tiempos de procesamiento cortos y una alta reproducibilidad.
Walther Trowal es uno de los pocos fabricantes que desarrolla y produce tanto las máquinas como todos los materiales de proceso para la tecnología de acabado por vibración por sí mismos ... por un lado las muelas de plástico o cerámica, por otro lado los compuestos.

Due to the outstanding physical properties, our various coating systems provide a versatile range of use for tanks and vessels. They show ultimate corrosion protection against natural influences and long-term UV-stability for external coating of tanks and steel constructions. As internal coatings for special tanks and process vessels, our products perform high-grade resistance properties at elevated operating temperatures.
 
Our high-performance coatings achieve the complex requirements in the range of oil and gas to their full extent. The demands for adequate corrosion protection in this field of application require excellent chemical resistance at high operating temperatures combined with extreme pressure resistance.
 
One of our premium products was tested extensively by the research institutes of Saudi Aramco, the biggest oil company worldwide. Our coating is approved for Saudi Aramco-Standards APCS-2i, APCS-28 and APCS-117. Various internal coating applications for newly built and renewed tanks in Saudi Aramco oil and gas refineries are primarily conducted with our approved product.
 
Particular parts of our product range are coating systems with electrostatic dissipation capabilities which we invented for the storage of highly flammable substances. When oxygen is present during electrostatic charging, explosive reactions could occur in the vapor phase, the upper area of the tank. By the addition of nano-carbon fibers, conductive chains are formed in the coating. These facilitate the dissipation of electric charging and prevent dangerous reactions of the storage fluids.
 
By integration of special particles into the ceramic-filled epoxide resin coatings, isolating properties are attained. These specific coating systems are especially qualified outstandingly for tanks and pipelines with exceeding temperature loads. Furthermore, they can effectuate the reduction of nuclear radiation (gamma rays) substantially.
 
Through several years of intensive research, we have developed special internal coating systems for storage tanks of crude oil and all kinds of hydrocarbons, which provide a steady long-term protection against biocorrosion induced by SRB bacteria. These coating products prevent fatal pitting corrosion effectively. The unique mode of operation has been registered for international patent.

Tests & Certificates of independent institutes
 
·         Saudi Aramco Approvals APCS-2i, APCS-28 and APCS-117
·         10.000 hours salt spray test
·         thermo-shock-test (from 180°C to zero, 1.000 cycles)
·         resistance to acids, alkaline solutions, (pH 4-11), brine, oils, CO2, H2S, Hg, HgS at operating temperatures up to 110°C
·         resistance to E85 – ethyl alcohol, methanol/petrol, add-blue-solutions, RME
·         resistance against methyl alcohol
·         long-term resistance to deionized water (50°C)
·         >9.000 hours stability against “killer solution” – 98% H2SO4 / pure methyl alcohol / 3% NaCl-solution
(1/3, 1/3, 1/3 at 50°C)
·         cathodic disbondment test at 1,5 V (30 + 60 + 90 days at 60°C)
·         autoclave test with explosive decompression (natural gas, 100 bar, 100°C)
·         electrostatic dissipation capability < 106 Ω surface resistance