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Sand Casting Process
May 19, 2017

Sand Casting Sand Casting Process EPC Machine The sand casting process is as follows:

  First, pre-foam

  The polystyrene beads are pre-fed to the appropriate density, typically by rapid heating of steam.

  Second, the model forming

  Pre-foamed beads are first stabilized and then fed into the mold cavity, which in turn passes into the steam, softens the beads, expands, pushes all the voids and sticks into one.

  Third, the model cluster together

  Before the use of the model, you must store the appropriate time (hours to days) to make it mature and stable, and then block the model for bonding.

  Four, model family dip coating

  Sand Casting The model cluster is immersed in a refractory coating and then dried in an air circulation oven of about 30 to 60 ° C for 2-3 hours. After drying, the model clusters are placed in a flask and filled with dry sand to vibrate and compact (usually by vacuum Negative pressure of the way, so that sand compact), must make all the model cluster inside the hole and the external dry sand are tight and support.

  Five, pouring molten

  Sand Casting After the metal is poured into the mold, the model material is vaporized at high temperature, and its space is replaced by metal to form the casting.

  Six, sand cleaning

  Sand Casting After casting, the casting is solidified and cooled in a flask, then sand and cleaned.

  EPC equipment by virtue of its high precision, low cost, good working environment, the advantages will gradually replace the old-style black sand sand casting, resin sand and sand casting and some other means of sand casting, I believe it will be very Good development, let us wait and see!