The graphite sagger is formed by pressing graphite powder material, which has high temperature resistance and oxidation resistance and longer service life. The molding method adopts the molding method, which can be cured while pressing, and the production efficiency is greatly improved. The molded graphite sagger has the characteristics of high density, high temperature resistance, and oxidation resistance. It is generally used as a container for loading materials during high temperature sintering. The forming method of graphite sagger includes kneading, preheating, molding and graphitization. Molded graphite sagger onceforming hydraulic pressAccording to the size of the sagger, 315 tons, 400 tons, 500 tons, 630 tons, 800 tons, 1000 tons, 1500 tons, etc. In this paper, this 800-ton graphite sagger forming hydraulic press is specially designed and customized by the company for customers. It consists of a main machine and a control mechanism. It is connected with pipelines and electrical equipment to form a whole. The main machine includes a main machine body, an oil cylinder, a limited range mechanism, a mold frame, etc.
graphite sagger pressing process:
The sagger or crucible mold is fixed in the upper and lower beams, and driven by the main oil cylinder, the upper and lower beams pressurize the sagger powder in both upper and lower directions, effectively ensuring the compactness of sagger products and improving the product quality. The 800-ton graphite sagger forming hydraulic press adopts PLC intelligent control and has a high degree of automation.
The 800-ton graphite sagger forming hydraulic press has an independent power system and electrical system, adopts PLC and touch screen control mode, and has inching and semi-automatic functions. Among them:
1. Press the start button with both hands when semi-automatic to realize automatic forming of powder loading, pressing, floating pressing and demoulding;
2. When inching, press the button once to realize the current action, and release the button to stop the action;
3. The working pressure and working stroke of the 800-ton graphite sagger forming hydraulic press can be adjusted within a certain range to meet the process needs of different products of users.
4. The main body of the 800-ton graphite sagger forming hydraulic press adopts vertical four-column and four-beam, which can realize two-way equal pressing;
5. PLC control and proportional valve assembly can realize low and high pressure multiple pressurization and stable pressure forming, which can meet the various process requirements of refractory products;
6, standard remote control switch, 800 tons of graphite sagger molding hydraulic press running speed adjustable, good flexibility, can effectively protect the mold;
7, the use of electro-hydraulic servo control system, advanced electro-hydraulic control and accurate hydraulic two-way sequence of high and low pressure operation system, high pressure, fast speed, low power consumption, low noise.
8. The main body of the 800-ton graphite sagger forming hydraulic press adopts a vertical four-column, two-way pressurization structure, and the oil pump is directly driven. It can realize two-way equal pressing, low and high pressure multiple pressurization and stable pressure forming, and can meet the various process requirements of refractory products.
9. The hydraulic system is double pump and double circuit, and adopts professional combined valve block to realize the working cycle of packing, exhaust, pressurization and demoulding.
800 tons of graphite sagger molding hydraulic press process action:
1. After the feeding is completed, the main cylinder of the 800-ton graphite sagger forming hydraulic press descend quickly, pressurize and exhaust slowly, and the exhaust times can be adjusted for 0-4 times; After the exhaust is completed, the pressure is held;
2. After the main cylinder exhausts and pressure, the lower cylinder rises and presses, exhausts, and the exhaust times are adjustable for 0-4 times. After the exhaust is completed, the pressure is held;
3. After the lower cylinder is pressurized, the main cylinder is pressurized to the set pressure once, and then the pressure is held;
4, pressure relief, demoulding, product removal.
Note: Exhaust times, exhaust pressure, pressing pressure, frame and bottom loading height can be adjusted on the touch screen, and various delays can be set separately.
ShandongZhongyou Heavy IndustryThe design and production of 800 tons of graphite sagger forming hydraulic press equipment has realized the safety, environmental protection, energy saving production value and high cost performance of "high pressing efficiency, uniform and accurate cloth, high density of sagger body and good quality stability". The two-way pressure, static pressure forming and other technologies better meet the forming process of refractory sagger products.