At present, it is widely used in various precision instruments and packaging blocks of various light industrial products. Most of them are made by EPS compression foaming. It can be directly formed into the shape corresponding to the package, and has reliable shockproof, heat insulation and pressure resistance. And other characteristics. The forming process of the eps plastic packaging pad can be carried out on the hydraulic machine. When the molding is performed, the cylinder of the hydraulic machine is driven to close the mold, and the action is started at a low speed, high speed, low speed closing, leaving a gap in the mold closing, and the final locking is completed by the adjusting cylinder. .
When feeding, first open the exhaust port, blow the cavity with air, preheat the cavity with 0.1-0.2MPa steam for 30s, then send the eps to the cavity with the feeding spray gun, take the air from the exhaust hole and close the mold. The gap left is discharged. After the feeding is completed, the stamper is closed, and then heated to 0.1-0.2 MPa of steam in the gas chamber for 10-30 min, and the eps expands to fill the cavity. The water is cooled and shaped, the cooling water is sprayed to the mold wall for cooling, and then the product is demolded, and sent to a drying room for drying in hot air at 50-60 ° C for 24 hours to solidify and shape.