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  2. Porosity sealing - Wikipedia

    en.wikipedia.org/wiki/Porosity_sealing

    Porosity sealing is done through the process of vacuum impregnation. Vacuum impregnation is a preferred OEM process that seals porosity and leak paths in metal castings, sintered metal parts and electrical castings that form during the casting or molding process.

  3. Hydrostatic seal - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_seal

    The second hydrostatic seal was an attempt to resolve first generation hydrostatic seal problems: erosion of seals, high pressure build up, and stagnant fluids. Second generation hydrostatic seals had a redesigned seal face; new face control grooves were added to help stabilize the seals while under extreme conditions.

  4. Concrete sealer - Wikipedia

    en.wikipedia.org/wiki/Concrete_sealer

    Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.

  5. Gasket - Wikipedia

    en.wikipedia.org/wiki/Gasket

    Annular Seal (RTJ Seal) is a high integrity, high temperature, high pressure seal for applications in the oil industry, oilfield drilling, pressure vessel connections, pipes, valves and more. The movement of the ring packing (RTJ) can be described as an irregular flow in the groove of the deformed sealing flange due to the axial compressive load.

  6. John Crane Group - Wikipedia

    en.wikipedia.org/wiki/John_Crane_Group

    John Crane is an American company, now a subsidiary of Smiths Group and provider of engineered products and services including mechanical seals, couplings, seal support systems, filtration systems and digital diagnostics technologies. The company services customers in the energy services sector including production, transmission and storage ...

  7. College Football Playoff schedule: Bowl game times, dates and ...

    www.aol.com/college-football-playoff-schedule...

    The College Football Playoff selection committee is all set to unveil its fourth top-25 ranking Tuesday night. Fans are eagerly anticipating the rankings, knowing that it will offer crucial ...

  8. Chilean prosecutors probe sexual harassment complaint against ...

    www.aol.com/news/chilean-prosecutors-probe...

    By Lucinda Elliott. MONTEVIDEO (Reuters) - Chile launched a preliminary investigation into a sexual harassment complaint against President Gabriel Boric on Tuesday in a blow to his leftwing ...

  9. Dry gas seal - Wikipedia

    en.wikipedia.org/wiki/Dry_gas_seal

    The first dry gas seal for a compressor was patented by Kaydon Ring & Seal in 1951 when it was known as Koppers Corporation. Field applications of dry gas seal designs were completed in 1952. The original patent was for Kaydon's "Tapered Ramp" lift geometry, a constant diameter / variable depth dynamic lift design. From that first dry gas seal ...

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