Pipe-in-pipe forming die and method
The pipe-in-pipe forming die comprises a die body, the die body comprises a support die, a mouth die, a core die and a middle die, the mouth die is arranged at the end of the support die, the middle die is arranged in the mouth die and close to the tail end, the core die is arranged in the whole for...
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Zusammenfassung: | The pipe-in-pipe forming die comprises a die body, the die body comprises a support die, a mouth die, a core die and a middle die, the mouth die is arranged at the end of the support die, the middle die is arranged in the mouth die and close to the tail end, the core die is arranged in the whole formed by the support die, the mouth die and the middle die, and the middle die comprises a middle die body. The front end of the middle die body is sleeved with an annular ring, and the annular ring is supported on the middle die body through a set of supports. A first middle mold temperature control medium channel is formed in the support, a set of second middle mold temperature control medium channels are formed in the middle mold body, and an inlet and an outlet of the first middle mold temperature control medium channel are provided with at least one middle mold temperature control medium inlet and at least one middle mold temperature control medium outlet. And the problem that the pipe is flattened by external a |
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