What is Ram Press?

Press RAM is a mechanical device used to form ceramic objects using two-piece forms pressed manually, hydraulically or pneumatic driven mechanism. The device consists of a static table mounted under a moving power press. The forms used are in two parts, with the negative half of the mold is usually mounted on a static table and a positive part on the print. In the negative half of the mold there is a charge of de-air clay and activated press. The print then pushes the positive section of molds into the clay and forces it to fill the negative half, thus developing the inner shape of a dictated positive form and an external shape that reflects the negative form.

The RAM press was used to form ceramic objects from dishes to tiles since the mid -40s. Ram Press has invented ceramic engineering graduates Ohio State University ceramic engineering Keith Blackburn and Richard Steele and uses the pressed two -piece mold system. The negative female form of the half is fastened to the bottomtable or in the stage, part of the press. The positive male form is attached to the moving upper part of the press, which moves vertically by a ram driven by compressed gas or oil or by hand -operated mechanism. Index pins and holes in two halves ensure correct alignment during pressing.

6 The printing is then cycle and forces the male half of the mold into the cavity formed in a feminine form. This action forces the clay to take the form of a cavity between male and female forms, thus creating a semi -sophistication of the ceramic part. When the cycle is completed, the pressing and the male form rise and the excess material is cut out of part, which is then removed from the RAM press.

The quality of the two halves of the dictating form Many completion is necessary after removing the part from the print. The surface imperfections can be cut out of the surface of the part or removed by means of wet sponge depending on their severity. Once the part is completedAnd, it can then be decorated, glazed and finally fired. Press RAM can be used to produce complex shapes in different sizes. The print cycle depends on a number of factors, with an average of 1,500 cycles in an eight -hour shift.