Time:2023-11-30 15:14:45 Browse: 120
Features and Pressed Products of a 2000-Ton SMC Automotive Cover Parts Compression Molding Hydraulic Press
The SMC (Sheet Molding Compound) automotive cover parts compression molding hydraulic press is a hydraulic press designed for molding composite materials. It comes in two structures: four-column and frame types. The choice between them depends on the specific requirements of SMC automotive cover parts, including the appropriate tonnage and structural design. The focus here is on a 2000-ton four-column hydraulic press designed and manufactured by Nadun Machinery Manufacture Co., Ltd. This press, with a three-beam four-column structure and a double-cylinder configuration, is specifically used for compressing SMC automotive cover parts, such as SMC truck air deflectors, SMC bumpers, SMC hood panels, SMC spoilers, SMC mirror shells, SMC car dashboards, SMC engine covers, SMC roof luggage boxes, and more.
The mainframe of this 2000-ton SMC automotive cover parts compression molding hydraulic press adopts the mature technology of a three-beam four-column hydraulic press structure. To balance the force uniformly on the large table, a horizontally placed three-cylinder structure is employed. Through three-dimensional modeling and computer finite element analysis, and with the cooperation of proportional and synchronization valves, each cylinder achieves high synchronization precision and uniform pressure, ensuring the molding accuracy of SMC products. The crossbeam of the 2000-ton four-column hydraulic press is made of high-quality Q345 steel plate, welded with double protection and subjected to X-ray flaw detection. It then undergoes annealing or vibration aging treatment to eliminate internal stress. Afterward, large-scale CNC floor-type boring and milling machines are used for hole boring and flat milling. Shandong Woda Heavy Industry strictly adheres to the ISO9001 quality management system standards for production processes and inspection procedures, ensuring the qualification of each hydraulic press unit.
The hydraulic system is equipped with a set of slow-opening mold cylinders, proportional valves, and servo flow valves for precision hydraulic control. Each cylinder is individually equipped with a large-flow quick-fill valve for rapid descent, slow descent, slow compression, slow mold opening, rapid return, and mold ejection at the bottom of the worktable. The press utilizes a PLC touchscreen control coupled with servo drive mode, allowing semi-automatic production in the case of manual feeding. The selected FESTO servo system intelligently starts and stops the servo motor, achieving energy efficiency, noise reduction, and environmental protection.
SMC Automotive Cover Parts Compression Molding Steps:
1. Mold Cleaning: Clean the mold thoroughly to avoid the residue of dust and debris.
2. Application of Mold Release Agent: After ensuring the mold is clean and smooth, apply a mold release agent to prevent the product from sticking to the mold after forming.
3. Material Preparation: Prepare the required carbon fiber prepreg material according to the shape and size of the product.
4. Material Stacking: Layer the carbon fiber prepreg material and perform pre-pressing to create a compact and well-shaped dense body.
5. Mold Loading: Place the layered raw materials into the mold, close the mold of the 2000-ton SMC automotive cover parts compression molding hydraulic press, set the pressure, time, and temperature parameters for composite material automotive outer covers, and press under high temperature.
6. Cooling and Mold Ejection: After hot pressing, cool for a certain period, then open the mold to remove the product.
7. Post-Processing: The product taken out of the mold is relatively rough and needs to undergo a series of post-processing steps such as trimming, polishing, and painting.
The 2000-ton SMC automotive cover parts compression molding hydraulic press adopts a four-column orientation, ensuring high precision without deviation. Typically equipped with PLC and servo hydraulic systems, the PLC allows one-key operation with programmed pressure and time settings. The servo hydraulic system (servo hydraulic press) has advantages such as energy efficiency, high efficiency, low noise, and high control accuracy, resulting in higher precision equipment. The characteristics of the 2000-ton SMC automotive cover parts compression molding hydraulic press include:
1. Simple, economical, and practical four-column structure with high precision and strong anti-overload capability.
2. Hydraulic control using an integrated system of cartridge valves, reducing leakage points, ensuring reliable and stable operation with a long service life.
3. The 2000-ton SMC automotive cover parts compression molding hydraulic press adopts a compact PLC control system, offering sensitive and reliable operation with good flexibility.
4. The working pressure and stroke can be adjusted within the specified range according to process requirements, making the operation simple.
5. It can achieve two molding processes: fixed pressure and fixed stroke, with a delayed pressure holding function, and the delay time is adjustable.
6. It can be equipped with servo energy-saving systems, rapid mold change systems, automatic loading and unloading robots, waste material conveyor lines, and other automation equipment.
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