FIELD: technological processes.
SUBSTANCE: method relates to pipe forming method. Method includes sequential task of heated sleeve in press container to contact with matrix, input of press-mold with installed press-washer and press-needle and subsequent pressing-out of the sleeve and pressing of the pipe with direct outflow of metal through the matrix hole, at that at the pressing-out stage of the sleeve the press-stamp is moved with design speed.
EFFECT: reduced variation of thickness of finished hot-pressed pipe with improvement of their accuracy and efficiency of pressing process.
1 cl, 3 dwg, 1 tbl
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