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How about for injection mold test
by：Lisson
2020-11-20
1.
Before test, should institute with the raw material is in accordance with the requirements, not requirement for processing or replacement.
2. According to the selected process parameters will liao tube heated to the appropriate temperature and nozzle, the best way to judge whether temperature suitable, is in the nozzle and injection mould mainstream way off, with lower injection pressure, slow flow in the molten material from the nozzle, observation material flow out again.
3. If there are no air bubbles in a material flow, lump, silver, color, etc. , material flow is smooth and bright, the cylinder and the nozzle temperature appropriate, can try.
4. Test, first choose under low pressure, low temperature and longer forming, and then press pressure, time and temperature change order, in order to get a better job skill parameters.
5. If the injection pressure is small, cavity filled with hard, can increase the injection pressure. When supercharging effect is not obvious, changing the temperature and time, when time delay is still not full, to raise the temperature. But it can't heat up too fast, too quickly, in order to avoid plastic overheating and decomposition.
6. In the production of thin wall and large area of plastic parts, generally adopts high speed injection, for thin wall and small size, low injection is adopted.
7. Test of plastic parts according to the requirements of design review, such as plastic parts unqualified, can think the injection mould for qualified.
2. According to the selected process parameters will liao tube heated to the appropriate temperature and nozzle, the best way to judge whether temperature suitable, is in the nozzle and injection mould mainstream way off, with lower injection pressure, slow flow in the molten material from the nozzle, observation material flow out again.
3. If there are no air bubbles in a material flow, lump, silver, color, etc. , material flow is smooth and bright, the cylinder and the nozzle temperature appropriate, can try.
4. Test, first choose under low pressure, low temperature and longer forming, and then press pressure, time and temperature change order, in order to get a better job skill parameters.
5. If the injection pressure is small, cavity filled with hard, can increase the injection pressure. When supercharging effect is not obvious, changing the temperature and time, when time delay is still not full, to raise the temperature. But it can't heat up too fast, too quickly, in order to avoid plastic overheating and decomposition.
6. In the production of thin wall and large area of plastic parts, generally adopts high speed injection, for thin wall and small size, low injection is adopted.
7. Test of plastic parts according to the requirements of design review, such as plastic parts unqualified, can think the injection mould for qualified.
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