Essays about: "Pipe Welding"

Showing result 1 - 5 of 11 essays containing the words Pipe Welding.

1. 1. Isocyanates formation from thermal degradation of polyurethane foam during welding of district heating pipes

   University essay from KTH/Ergonomi

   Author : Muhammad Akram; [2023]
   Keywords : Polyurethane; Isocyanates; District Heating Pipes; Oxy-fuel Welding; Manual Metal Arc Welding;

   Abstract : Polyurethane insulation foam, which is used as insulation on district heating steel and copper pipes, is made from polymerisation of polyol and diisocyanates monomers. Installation of new district heating pipes or replacement of old pipes involves masses of welding activities. READ MORE

3. 2. Researching and Developing Universal Gas Purging Solutions

   University essay from KTH/Maskinkonstruktion (Avd.)

   Author : Ludvig Briheim; Dennis Ståhl; [2020]
   Keywords : Gas Purging Plug; Pipe Purging; Root Shielding; Shielding Gas; Pipe Welding; Rotgasplugg; Rotgasskydd; Skyddsgas; Rörsvetsning; Rörrengöring;

   Abstract : In the welding of more sensitive metals such as stainless steel, titanium and some specific nickel alloys, the presence and application of a protective gas is essential. Without the use of a nonreactive shielding gas, defects occur in or adjacent to the weld joint, which vary from light discoloration of the weld bead to the direct onset and propagation of cracks. READ MORE

4. 3. Manufacturing of Welded Rings : Evaluation of Post-Weld Operations

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Jim Andersson; [2019]
   Keywords : FBW; flash butt welding; low alloy steel; metallurgy;

   Abstract : Pipe and ring blanks can be produced in several different ways. Today's focus on environmental effects motivates companies to develop processes that are as efficient as possible in their production. Ringsvets AB is a company that produces pipe and ring blanks from a flat stock by rolling and welding the piece to make it stay in its desired form. READ MORE

5. 4. Evaluation of current welding robot and improvement proposals for future use

   University essay from KTH/Marina system

   Author : Joakim Nilsson; [2018]
   Keywords : ;

   Abstract : Welding of elements, a heat exchanging component, is one of the most essential processes during the manufacturing of Tubel evaporators. Weld joints consists of fillet welds of thin tubes against a plate on one end, and on the other end against a thicker pipe with entry holes for the tubes. READ MORE

6. 5. Optimization of the AdBlue e vaporation module for Scania V8 engines

   University essay from KTH/Maskinkonstruktion (Inst.)

   Author : Mattia Antoniotti; [2017]
   Keywords : CR; evaporation unit; urea deposits; heat fins; Urea; förångningsmodulen; ureaavlagringar; rörflänsar;

   Abstract : The aftertreatment techniques introduced to follow the emission legislations require a constant improvement process to comply with the gradually more stringent demands. SCR is the system used nowadays to deal with NOx emissions in most heavy-duty vehicles. READ MORE