MANUFACTURE OF NAVEL HEALING STRUCTURE AND NAVEL HEALING STRUCTURE

摘要

A method of making a navel heel ring is disclosed, comprising the steps of: drying the ABS material in a hopper bar for 2 hours 30 minutes to 3 hours 30 minutes at 70 ° C to 90 ° C; Dissolving the dried ABS material in a temperature range of 210 캜 to 250 캜; Solidifying the molten ABS material in a navel heeling frame under a 320 ton pressure for 2 to 3 minutes; Separating the solidified ABS material from the navel heeling frame and cooling it in water.