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2. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   Various types of flanges are available, depending on construction. Flanges used in piping (orifice, threaded, slip-on, blind, weld neck, socket weld, lap-joint, and reducing) are available with a variety of facings, such as raised, flat, and ring-joint. Flange connections tend to be expensive because they require the precision forming of metal.

3. Electrofusion welding - Wikipedia

   en.wikipedia.org/wiki/Electrofusion_Welding

   Electrofusion welding requires electrical current to be passed through the coils implanted in the fittings. Since the electrical energy input is an excellent indicator of the joint strength that develops during fusion, it is necessary to have consistent electrical power input.

4. Heat fusion - Wikipedia

   en.wikipedia.org/wiki/Heat_fusion

   The other major technique is socket fusion. It is distinguished from butt-welding by using custom-shaped and -sized heating plates rather than a basic flat surface. These heads allow for more surface contact, reducing the time needed to heat and fuse the pipe. Socket fusion joins pipe and fittings together, rather than simply joining pipe to pipe.

5. Electrofusion - Wikipedia

   en.wikipedia.org/wiki/Electrofusion

   The pipes to be joined are cleaned, inserted into the electrofusion fitting and then alignment clamps and a voltage (typically 40V) is applied for a fixed time depending on the fitting in use. The built in heater coils then melt the inside of the fitting and the outside of the pipe wall, which weld together producing a very strong homogeneous ...

6. List of welding processes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_processes

   This is a list of welding processes, separated into their respective categories. The associated N reference numbers (second column) are specified in ISO 4063 (in the European Union published as EN ISO 4063 ). [ 1 ]

7. How to Get Rid of Blisters, According to Doctors - AOL

   www.aol.com/rid-blisters-according-doctors...

   They may be caused by ill-fitting shoes, not wearing socks, or sporting new shoes before breaking them in. Blisters commonly happen on your heels, toes, or other parts of your feet, ...

8. Welding - Wikipedia

   en.wikipedia.org/wiki/Welding

   Similarly, because automation and robots increase equipment costs, they are only implemented when high production is necessary. Labor cost depends on the deposition rate (the rate of welding), the hourly wage, and the total operation time, including time spent fitting, welding, and handling the part.

9. What Is The Difference Between A Celery Stalk And A ... - AOL

   www.aol.com/difference-between-celery-stalk...

   Trim off the base and any damaged areas, then use as directed. Tip. For an even more tender texture, peel off the tough membrane of the celery ribs before using. To do this, avoid cutting all the ...