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  2. Hot isostatic pressing - Wikipedia

    en.wikipedia.org/wiki/Hot_isostatic_pressing

    The process can be used to produce waste form classes. Calcined radioactive waste (waste with additives) is packed into a thin walled metal canister. The adsorbed gases are removed with high heat and the remaining material compressed to full density using argon gas during the heat cycle. This process can shrink steel canisters to minimize space ...

  3. Four-slide - Wikipedia

    en.wikipedia.org/wiki/Four-slide

    A four-slide machine The same four-slide machine from another angle. A four-slide, also known as a multislide, multi-slide, or four-way, is a metalworking machine tool used in the high-volume manufacture of small stamped components from bar or wire stock. The press is most simply described as a horizontal stamping press that uses cams to ...

  4. Self-heating food packaging - Wikipedia

    en.wikipedia.org/wiki/Self-heating_food_packaging

    To heat the contents of the can, the user pushes on the bottom of the can to break the barrier separating the chemical from the water. This design has the advantages of being more efficient (less heat is lost to the surrounding air) as well as reducing excessive heating of the product's exterior, causing possible discomfort to the user.

  5. Heat-affected zone - Wikipedia

    en.wikipedia.org/wiki/Heat-affected_zone

    Heat-affected zone around a weld. In fusion welding, the heat-affected zone (HAZ) is the area of base material, either a metal or a thermoplastic, which is not melted but has had its microstructure and properties altered by welding or heat intensive cutting operations. The heat from the welding process and subsequent re-cooling causes this ...

  6. Overview of gun laws by nation - Wikipedia

    en.wikipedia.org/wiki/Overview_of_gun_laws_by_nation

    Firearms are not defined the same way in each country.. Some terms are used in several countries in the context of gun laws. These include the following: shall-issue: granting of a required license or permit is subject only to the applicant's meeting determinate criteria laid out in the law; the granting authority has no discretion in the awarding of licenses.