After the mold is finished, what is the correct first sample process?

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After the mold is finished, what is the correct first sample process?
Written By Jasmine HL
1. After loading the mold, set the mold temperature according to the water transport connection
method in the "Formation Condition Table".
2. Set the barrel temperature.
3. After the mold temperature comes up, it can start formally.
4. First set the total stroke of the shot gel by referring to the molding condition table.
5. First debug the first stroke, that is, the rubber has just rushed through the nozzle a short
distance;
6. Then debug the second stroke, that is, the stroke filled with about 95% ~ 98% of the product.
7. Debug the last stroke, that is, the stroke that is just full of the product. Note that it should be
accurate to 1 ~ 2mm, and there should not be a little underfill or overfill.
8. After debugging the 3 large strokes, you can set the first segment to be slower, and set the
pressure and speed of the second segment to high pressure and fast, which can be more than 90%
(the prerequisite is that various appearance defects cannot appear in a large area. ), The last
paragraph needs to reduce the speed and pressure again.
9. If there are speed-related defects such as local drowsiness, flow patterns, etc., you need to
measure the cause of the defect and estimate the travel position of the defect, and then use the
method of filling analysis to find its For actual position, add a slow or fast small stroke to the first
few mm and the last few mm of this position to debug, and so on to improve the forming defects.
10. Holding pressure (the first paragraph is recommended to be set to slow speed and short time),
pay attention to check if there is a code mode after holding pressure.
11. In order to prevent the rubber from staying in the barrel for too long, the residual amount of

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rubber is specified to be 3 ~ 8mm. After the above operations are completed, the stroke of each
section needs to be added or subtracted to adjust the residual amount of rubber within this
range. .
12. For the pressure and speed of the above paragraphs, please refer to the existing Forming
Condition Table.
13. The basic setting principle of the cooling time of each set of molds is: under the condition
that the product's long bone position or long column position is not deformed, and the
appearance is not white or top, the runner is just cooled enough to be taken out. Do not cool
down too long.
14. The speed of the screw does not need to be set too fast or too slow, and its turning time can
be slightly shorter than the cooling time.
15. In order to speed up the molding cycle, it is necessary to shorten the mold opening and
closing time as much as possible, but when the mold is closed, there should not be too much
noise and ensure that the spout that drops by itself can fall safely; when debugging the robot, it
is also necessary to make the robot fall as fast as possible. To ensure that the intermediate period
of forming is controlled between 4 to 6 seconds.
16. After debugging, carefully check the appearance of the samples provided by the quality
department (check for slight shrinkage, defects, flow marks, air marks, water lines and colors, and
whether there is any scratch on the appearance. Injury, pitting, rust, etc.), but this process needs
to be controlled within 10 minutes; if the appearance of the self-inspection is NG, refer to Article
9 above to continue to improve;
If the self-inspection appearance is OK, then form 15 beers under this condition. On the one hand,
observe whether there is any change in its appearance. If not, take the 8th beer, and after cooling,
refer to the sample and the "Inspection Standard Book" to measure its control size. OK sign the
processing board to the production team leader for production, and send the first inspection.