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  • Evaluation of Two Organoclays, Clinoptilolite and Hydroxy-Apatite as Sorbents for Heavy Metal Removal from Water
    A series of column tests where performed with four sorbent media to determine their effectiveness for the removal of heavy metals from water. The sorbents are an organoclay, an organoclay/anthracite blend, clinoptilolite (a zeolite), and hydroxy-apatite. Heavy metals studied were Ni, Cr, Cu, Cd
  • Metal Working Fluid
    Metal working fluids are straight oils, soluble oils, semi-synthetic, and synthetic fluids that facilitate a wide variety of operations involving the working or modification of metals by metal removal, forming, or heat treating processes. Metal removal fluids are used in machining or metal cutting
  • Aqueous Degreasing of Metal Parts
    Ultrasonic cleaning is required in the metalworking industry for the removal of oils, greases, metalworking fluids, abrasive polishing compounds, and particulate contamination such as metal fines and shop soils. Cleaning agents based on CFC-113 azeotropes and chlorocarbon solvents, such as 1,1,1
  • How Does Custom Sheet Metal Fabrication Work?
    methods boil down to a few different types. Any sheet metal structure can be created by a combination of material removal, material forming, and assembling processes.
  • Four Commonly Asked Questions about Metal Stamping and Deep Drawn Parts
    When designing a part with features that are deeper than the largest cross sectional dimension, deep drawing is a commonly used material forming method. On the other hand, metal stamping is used when the material only requires shallow features, but also requires material removal steps as well. Here
  • Using a buffered rinse solution to minimize metal contamination after wafer cleaning
    thinner gate oxides and metal films, will require different types of cleaning chemistries that are both environmentally friendly and have controllable process characteristics (etch rate, particle removal, and rinsability, for example). It is also critical that cleaning solution residuals be removed
  • Hard-Coating Removal That s Easy on the Environment
    bond layers, and underlying alloys, surface protection becomes depleted during operation, and coatings must be removed and replaced. Maintenance personnel often rely on acid stripping and grit blasting to remove the tough coatings. Both processes can damage the underlying metal and change part
  • Case History: Rehabilitation of Failed Corrugated Metal Pipe Spillways - Santa Clara, CA (.pdf)
    On Stevens Canyon Road, Santa Clara, CA, a storm drainage spillway was constructed using a corrugated metal pipe (CMP). This CMP spillway was deteriorating and presented a costly dilemma. Conventional removal of the old conduit, using excavation and replacement with a new pipe, is expensive

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