Essays about: "remelting"

Showing result 6 - 10 of 10 essays containing the word remelting.

  1. 6. Nitrogen Without Oxygen : The effect of ferroalloys added after vacuum treatment on cleanliness of nitrogen-alloyed tool steel

    University essay from KTH/Materialvetenskap

    Author : Leo Nilsson Hultén; [2021]
    Keywords : Tool steel; Electro-Slag Remelting ESR; Nitrogen Alloying; Ferroalloys; Nonmetallic Inclusions NMI; Verktygsstål; Elektroslaggomsmältning ESR; Kvävelegering; Ferrolegeringar; Ickemetalliska Inneslutningar NMI;

    Abstract : Nitrogen-alloyed tool steel is made at Uddeholms AB by adding high-nitrogen ferroalloy after vacuum degassing where introduced impurities are hard to remove. In this thesis two types of high-nitrogen ferrochromium are compared, a solid version and a powder cored wire. READ MORE

  3. 7. Economic and technic aspects on post-weld treatment of welded structures exposed to fatigue loads

    University essay from KTH/Industriell produktion

    Author : Johan Ankre; [2021]
    Keywords : ;

    Abstract : It has been known for a long time that we live on a planet with a limited stock of resources. The world population is increasing, more products are being produced and humans are consuming more in a lifetime than the planet can recover. It is a constant competition between industries to keep their prices down and get consumers to buy their product. READ MORE

  4. 8. The effect of thickness and compaction on the recovery of aluminium in recycling of foils in salt flux

    University essay from KTH/Materialvetenskap

    Author : Harald Philipson; [2020]
    Keywords : ;

    Abstract : In Norway, more than 40.000 tonnes of aluminum (Al) in food packaging goes to incineration annually. Recycling this waste would save more than 1.5 TWh of energy and several hundred thousand tonnes of CO2 emissions. READ MORE

  5. 9. Optimization and development of the welding system for fiber-optic duct joints

    University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

    Author : Jiatong Duan; [2019]
    Keywords : Electrofusion welding; Fiber-optic duct; Current Measurement; dsPIC33FJ16GS404; Capacitor bank;

    Abstract : At present, the fiber optic ducts are connected by a mechanical type of joint. In this method, two ducts cut in the right angle are pushed in from both sides of the joint, and takes approximately one second to joint ducts together. READ MORE

  6. 10. Energy Consumption and Carbon Footprint of Secondary Aluminum Cast House

    University essay from KTH/Tillämpad processmetallurgi

    Author : Wenjing Wei; [2012]
    Keywords : secondary aluminum cast house; energy consumption; carbon footprint; melting furnace; efficiency;

    Abstract : Primary aluminum production brings about severe environmental burden due to its energy intensive process.  Secondary aluminum production contributes to cutting off high energy demand around 90-95% and greenhouse gas emission by remelting scraps. READ MORE