Now the building plastic mold shell is mostly polypropylene plastic material, with light weight, many specifications, large rigidity, small deformation, good seismic performance, easy production, recyclable, heat preservation, sound insulation, saving the amount of concrete and steel, can be reused and other advantages. For the processing of building plastic mold shell, Shandong Zhongyou designed and produced a building plastic mold shell hydraulic press with a three-beam and four-column structure, which is an ideal building plastic mold shell production equipment with a hot pressing molding, high efficiency and fast speed.
According to the material, specification, thickness, mold and other factors of the building plastic mold shell, Shandong Zhongyou can customize 315 tons, 500 tons, 630 tons, 1000 tons, 1200 tons, 1500 tons, 2000 tons and other tonnages of the building plastic mold shell hydraulic press. The apparatus may be equipped with heating and cooling means. Small parts can be used for shaping and cooling with a cold press (no heating, only cooling water) and for thermoplasticizing with a heating press, which can save energy.
Production process of building plastic shell
The plastic mold shell molding required materials, according to the formula to stir the material, in the mold surface coated with mold release agent, mold release smooth high precision. A layer of adhesive paste is evenly coated on the mold coated with the release agent, then the plastic mold shell material is laid, and then a layer of adhesive paste is coated; After operation, until the predetermined thickness is reached, then the hydraulic press of the building plastic mold shell is pressurized and heated, and the pressure is held. After molding, the mold is demoulded, and the plastic mold shell is pressed with high precision and high yield.
Building plastic shell pressing action:
Slider moves down quickly, decelerates down, slow press forming (sometimes exhaust is required), pressure maintaining, pressure releasing, sliding block micro-return, fast return to upper limit, quick top of ejection cylinder, ejection cylinder return, manual reclaim and feeding. The action of the building plastic mold shell hydraulic press is composed of a high and low pressure combined pump, which can greatly reduce the power required for the rapid stage when the rapid decline is realized by self-weight downward flushing and oil replenishment. In the rapid pre-pressing, high and low pressure pumps are involved in the work, in the pressure reached a certain value or pressed to a set position, low pressure pump pressure relief, and only high pressure pump work. This forms a low-speed press to facilitate the full flow of material and gas out of the mold cavity.