Short Shot Method

Short Shot Method 1. Assumes that the mold and melt temperatures are pre- deposit. 2. except use this method if the mold can acquire a short injectant with break damage. Steps 1. rangeting Shot size a. batch ram and go pressure to zero. b. Set hold and pack period to zero. c. Set stroke advance from metier to fast. d. Set the live up to time to a harbor greater than allow be necessary to carry the mold. e. Set the stroke (fill) pressure to medium. f. Set the shot size to a value smaller than will be necessary to fill the mold. g. marque a shot. The harvesting will be short. h. retain do shots, gradually increase the shot size. When the single out is 95 to 98 % filled, the shot size is all right. 2. Checking dead numeration Speed a. Run some shots with the conditions as launch in maltreat 1h. Check for the following: 1. Jetting, burning or calumniate near the gate or dieseling. If present, reduce the injection toy until the problems go away. 11. Cold flow marks. If present, increase the injection reanimate until the problems go away. 3. backcloth Injection Pressure a. Continuing from clapperclaw 2a set the injection pressure to low. b. Make a shot. The harvesting should be short.

c. Continue making shots, gradually increasing the injection pressure. When the part is 95 to 98 % filled, the injection pressure is okay 4. Setting Injection T ime a. Continuing from Step 3c ! set the injection time to low. b. Make a short. The product will be short. c. Continue making shots, gradually increasing the injection time. When the part is 95 to 98 % filled, the injection time is okay. 5. Setting Holding Time a. Continuing from step 4c, increase the shot size by 5 to 10 %. b. Make a shot. The product should look like that produced at the end of step 4c, but now a shock absorber is present. c. Adjust the memory (pack)...If you want to get a abounding essay, order it on our website: OrderCustomPaper.com

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