An amorphous silica particles, gravel, other particles and products provide a safe replacement for crystalline silica sand, gravel, or particles in consumer and industrial applications wherein dust may be produced during use or installation. The amorphous silica particles, gravel, other particles or products may comprise components that increase the density, hardness, and other properties from container glass. These components include, but are not limited to, iron oxides, aluminum oxides, and zirconium oxides.

A process for the surface treatment and/or production of a metal or alloy product including the steps of: a) dulling of a surface of the metal or alloy product and b) electrochemical treatment of the dulled surface of the metal or alloy product, and a metal or alloy product which produced or able to be produced by the process.

A process for the surface treatment and/or production of a metal or alloy product including the steps of: a) dulling of a surface of the metal or alloy product and b) electrochemical treatment of the dulled surface of the metal or alloy product, and a metal or alloy product which produced or able to be produced by the process.

A surface treatment method includes: preparing a metal laminated article; and blasting a surface of the metal laminated article using shot media, the shot media include first shot media of first granularity with a grit shape and second shot media of second granularity with a grit shape, and the first granularity is greater than the second granularity.

A surface treatment method includes: preparing a metal laminated article; and blasting a surface of the metal laminated article using shot media, the shot media include first shot media of first granularity with a grit shape and second shot media of second granularity with a grit shape, and the first granularity is greater than the second granularity.

A blasting or stripping booth is provided creating a generally downward flow for treatment of fluid and particle flow, which reduces operator exposure to potentially hazardous debris. The booth comprises an enclosure defining an upper region for a workpiece, a lower region, and a separator assembly. In some instances the separator assembly includes individual separator units which are discrete units, each having a generally square or rectangular plan view configuration which are arranged in an array for providing the required process flow capabilities. Further embodiments utilize structures forming the separator which have an elongated trough-like configuration. These embodiments find a particular application in large-scale stripping or blasting booth used in production environments where workpieces may flow through a treatment system in a serial manner. Other suitable applications include batch type processing of parts.

A blasting or stripping booth is provided creating a generally downward flow for treatment of fluid and particle flow, which reduces operator exposure to potentially hazardous debris. The booth comprises an enclosure defining an upper region for a workpiece, a lower region, and a separator assembly. In some instances the separator assembly includes individual separator units which are discrete units, each having a generally square or rectangular plan view configuration which are arranged in an array for providing the required process flow capabilities. Further embodiments utilize structures forming the separator which have an elongated trough-like configuration. These embodiments find a particular application in large-scale stripping or blasting booth used in production environments where workpieces may flow through a treatment system in a serial manner. Other suitable applications include batch type processing of parts.

A shot peening method is disclosed. One method includes performing a first shot peening for applying residual stress to a surface of an object formed of a metal material at a first depth, and performing a second shot peening for applying residual stress to the surface of the object at a second depth deeper than the first depth after the first shot peening. The first shot peening is performed before the object is used at a high temperature and the second shot peening is performed after the object is used at the high temperature, and after a cracking caused by stress due to thermal expansion and contraction of crystal grains occurs in the object. The cracking being deeper than the first depth and shallower than the second depth.

A shot peening method is disclosed. One method includes performing a first shot peening for applying residual stress to a surface of an object formed of a metal material at a first depth, and performing a second shot peening for applying residual stress to the surface of the object at a second depth deeper than the first depth after the first shot peening. The first shot peening is performed before the object is used at a high temperature and the second shot peening is performed after the object is used at the high temperature, and after a cracking caused by stress due to thermal expansion and contraction of crystal grains occurs in the object. The cracking being deeper than the first depth and shallower than the second depth.

A cutting method by applying a particle beam of metallic glass onto a substrate to cut or partially cut the substrate with high production efficiency, low production cost and better environmental protection.