Time:2023-11-30 14:44:05 Browse: 120
Manufacturer Features of 800-Ton Graphite Crucible Hydraulic Press
Graphite crucibles are formed by pressing graphite powder material, exhibiting high-temperature resistance and oxidation resistance for an extended lifespan. The molding process utilizes die pressing, allowing simultaneous pressing and solidification, significantly improving production efficiency. Die-pressed graphite crucibles are characterized by high density, high-temperature resistance, and oxidation resistance, typically used as containers for loading materials during high-temperature sintering processes. The forming process of graphite crucibles includes mixing, preheating, die pressing, and graphitization. For die-pressed graphite crucibles, hydraulic presses with specifications of 315 tons, 400 tons, 500 tons, 630 tons, 800 tons, 1000 tons, 1500 tons, etc., are commonly used based on the size of the crucible. The mentioned 800-ton graphite crucible forming hydraulic press is custom-designed by the company to meet specific customer requirements, consisting of a main unit and a control mechanism connected through pipelines and electrical equipment. The main unit includes the machine body, hydraulic cylinder, limit mechanism, and mold frame.
Graphite Crucible Pressing Process:
Fix the crucible or crucible mold on the upper and lower sliding beams. Driven by the main hydraulic cylinder, the upper and lower sliding beams apply dual-directional pressure to the graphite crucible powder, effectively ensuring the compactness of the crucible product and improving product quality. The 800-ton graphite crucible forming hydraulic press adopts PLC intelligent control, achieving a high degree of automation.
The 800-ton graphite crucible forming hydraulic press has an independent power system and electrical system, using PLC and touchscreen control, equipped with inching and semi-automatic functions. Among them:
1. In semi-automatic mode, pressing the dual-start button achieves automatic molding of loading, pressing, floating pressing, and demolding.
2. In inching mode, each press of the button realizes the current action, releasing the button stops the action.
3. The working pressure and stroke of the 800-ton graphite crucible forming hydraulic press can be adjusted within a certain range to meet the process requirements of different products.
4. The main body of the 800-ton graphite crucible forming hydraulic press adopts a vertical four-column structure, capable of bidirectional equal-pressure pressing.
5. It employs PLC control, assembly proportional valves, enabling low and high-pressure multiple pressings and stable pressure forming to meet various process requirements for refractory material products.
6. Comes with a remote control switch, adjustable operating speed, good flexibility, effectively protecting the mold.
7. Utilizes an electro-hydraulic servo control system, advanced electro-hydraulic control, and precise hydraulic bidirectional sequential high-low pressure operation system, offering high pressure, fast speed, low power consumption, and low noise.
8. The main body of the 800-ton graphite crucible forming hydraulic press adopts a vertical four-column, bidirectional pressure structure, with the oil pump directly driven. It achieves bidirectional equal-pressure pressing, low and high-pressure multiple pressings, and stable pressure forming, meeting various process requirements for refractory material products.
9. The hydraulic system is a dual-pump dual-loop system, using a professional combination valve block to realize the working cycle of filling, exhausting, pressing, and demolding.
Process Actions of the 800-ton Graphite Crucible Forming Hydraulic Press:
1. After completing the loading, the main cylinder of the 800-ton graphite crucible forming hydraulic press quickly descends, slowly pressurizes and exhausts the crucible, and the number of exhausts can be adjusted from 0 to 4 times; after exhausting, maintain pressure.
2. After maintaining pressure, the lower cylinder rises for pressing, exhausts, and the number of exhausts can be adjusted from 0 to 4 times; after exhausting, maintain pressure.
3. After maintaining pressure in the lower cylinder, the main cylinder presses once to the set pressure, then maintains pressure.
4. Release pressure, demold, and remove the product.
Note: The number of exhausts, exhaust pressure, pressing pressure, frame, and bottom loading height can be adjusted on the touchscreen, and various delays can be set separately.
The 800-ton graphite crucible forming hydraulic press designed and produced by Nadun Machinery Manufacture Co., Ltd. achieves high pressing efficiency, uniform and precise material distribution, high density of crucible blanks, and good stability in quality. It offers high value in terms of safety, environmental protection, energy efficiency, and cost-effectiveness. The technology of bidirectional pressing and static pressure forming better meets the molding process of refractory material crucibles.
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