1, it is better to have plate clamp with slot on the suspension device which is convenient to adjust the position so as to maintain the shape and flatness of mold.
2, the cushion pad should be laid flat and not deformed.
3, avoid falling into lubricant and debris during mounting.
4, if a tension device is used, the expansion factor should be in consideration.
Pretreatment process
In order to achieve perfect lamination effects, we suggest adaptive pretreatment due to door skin press performance, pressure, and lamination process variety, it has been verified a good result under our years experiments and research.
1, when the mold is first used, the surface is coated with a release agent or special silicon oil. Under repeated temperature changes, the release agent can penetrate into the capillary pores of plate to form a kind of meticulous and strong membrane film on top of mold surface.
2, put 2 or 3 pieces of white paper, in the middle of it, put 4 or 6 pieces of kraft paper. All these papers are non-impregnated to avoid glue resin cured onto mold when press is open without pressure.
3, closing hot press without pressure, increasing press plate temperature in turn of 300C-600C -900C-600C-1200C-900C-1500C up to max. operating temperature, repeating the turn after 20minutes, then cooling temperature by air naturally. Applying pressure at about 20~30kg/cm2. in this repeating temperature and steady pressure, it keeps press mold surface structure flat and bevel corner easier to release melamine paper without broken, last long operation precious without brightness variety.
4, in real door skin manufacturing, we suggest two steps process, that is special thin MDF get mark in mold press firstly, then lay melamine paper for second curing finishing.
