| 1. |
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The blow stem is placed in an injection mold. |
| 2. |
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The melted thermoplastic material is injected into the injection mold and formed around the blow stem. |
| 3. |
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The blow stem is now wrapped with the "preform". |
| 4. |
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The preform along with the blow stem are then placed in the blow molding chamber. |
| 5. |
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Compressed air is injected through the blow stem into the preform. The preform is expanded like an inflated balloon. |
| 6. |
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Compressed air continues to blow in until the preform reaches the wall of the mold. |
| 7. |
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The molded plastic stays in the mold until it cools and hardens. |
