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Hot Water Straightening Light Guides Procedure (view source)
Revision as of 18:10, 13 January 2014
, 18:10, 13 January 2014no edit summary
* Run your gloved fingers along the fiber towards the next collar, keeping the fibers in the same position of the matrix. If constant pressure is kept on the top, bottom, and sides of the bundle with your hands, the bundle stays in a square matrix and is able to be placed in the next collar very easily.
* Run your gloved fingers along the fiber towards the next collar, keeping the fibers in the same position of the matrix. If constant pressure is kept on the top, bottom, and sides of the bundle with your hands, the bundle stays in a square matrix and is able to be placed in the next collar very easily.
* Slide all the collars as far as possible toward the aligned end of the bundle. Make sure the bundle is straight. Tighten the collars just enough so that they do not slip when the springs are attached in the the next step. You can test this by trying to move the collar along the slots in the aluminum. If the collar moves, push it back to its original position and tighten the collar a little bit more. If it moves, repeat the procedure above. If it will not move at all, the collar is now tight enough.
* Fasten springs to the collars to put the fibers in tension. Use sections of wire to tie the springs to the collars.
* Insert the aluminum bar into the heat treating pipe.
** One worker should tilt the pipe, and the other should remove the top cap and set it aside. While the one worker holds the pipe tilted, the other inserts the bar. Be careful not to knock the bundle against bars or pipes below the ceiling. Also, do not let the bar fall into the straightening unit. Set it carefully at the bottom of the pipe.
* Screw the cap back onto the pipe, making sure to hand tighten it.
* Fill the pipe:
** The valve for the air inlet hose should be closed.
** Oven valves 1, 3, and 6. Close valves 2, 4, and 5.
** Turn on the cold water filtered water, and turn the water inlet valve 90 degrees.
** When the water starts coming out into the fish tank, open all the valves intermittently to bleed air out.
** After the air is expelled from the pipes, close all of the valves except for three and two.
* Run the LabVIEW program to heat the water.
* After the water has reached its maximum temperature it should cool for 12 hours before the aluminum bar is removed from the pipe.
* After 12 hours or more, drain the pipe by opening all of the valves, including the one for the air inlet.
* Again, put on clean gloves.
* One worker should tilt the pipe, and the other should remove the cap and take the bar out of the pipe. Replace the cap and raise the pope to its vertical position. Set the bar on the bundling table. Unscrew the collars and remove the straightened bundle. Before putting a new bundle on the aluminum straightening bar, clean the straightened bundle with a damp lint-free cloth, label it, and put it in the intermediate storage box.