In the case of the plywood area S unchanged, the pressure P and pressure F is proportional to. And the pressure of the size, determines the degree （density) of the plywood and the bending strength and other basic properties. That is, under different pressure, the composition of the production of the same composition of the performance of the plywood is different. So, we are generally concerned about how much pressure P is, and care about the corresponding performance of the finished product.
Calculation of pressure F=P*S
Measurement pressure = unit pressure multiplied by compression area divided by cylinder pressure (hot press rolling area)
The number of cylinders of the press is multiplied by the area of the cylinder to be multiplied by the pressure.
For example, 4 cylinder, each cylinder diameter 160mm, working pressure of 15MP
3.14*80*80=20096mm2 *15=301440kg X 4=1205760KG
That Is 1205.76 tons
Plywood hot pressing machine is the main machinery of the whole plywood production process and is used for make hot pressing for the gluing combined plywood , the performance of different varieties of plywood for the hot press have different requirements: ordinary plywood, aviation plywood, plastic veneer, wood laminated plastic board, marine plywood manufacturing required in turn increases pressure. Plywood hot press according to the operating mode is divided into periodic and continuous, domestic commonly used is periodic multilayer hot press. It consists of three parts: hot pressing machine body, control driving part (Department of hydraulic system and electric control system, a heating system.
Hot pressing veneer, veneer veneer single double hot press, hot press, hot pressing system features: fast heating, heating system, heat conduction system of light carefully designed, low energy consumption, heat conduction mechanism design is reasonable, uniform; parts processing precision, wide adjustment range of process parameters, control process design is reasonable, can meet the requirements process for the production of veneer. Usage: laminator series machines are suitable for neutral or small man-made board furniture factory two processing factory (professional veneer), used for hot pressing adhesive plates, partition, building furniture doors and in various wood-based panels: such as plywood, joinery board, MDF, particleboard pressed decorative surface materials: melamine decorative paper, decorative cloth, fireproof board, metal foil, artificial and natural veneer, natural wood mosaic; single version can not be used for drying leveling, leveling wood color decoration, setting.
According to the above content, you can compare.
What is the formula for calculating the actual pressure on the board according to the reading of the pressure gauge when using the hydraulic press bonding plywood?
Hydraulic machine at work pressure gauge will be displayed on the pressure is how many kilograms, or how much MPa. It just means hydraulic station output per square metres of the size of the pressure, such as table display is 20kg / square cm, look at the hydraulic cylinder piston area is much, such as hydraulic cylinder diameter is 10cm, then his subject area is 78.5 cm2, reoccupy 78.5 to 20kg / times square centimeters of force that hydraulic pressure at present is 1570kg
F=P*S, the meter reading is multiplied by the die area of the die.
Estimation a ton is equal to ten thousand cattle. Cattle and a force acting in a square millimeter of pressure is 1MPa, the machinery industry the default is to use millimeter as a unit, just by looking at drawings calculation of cylinder cross-sectional area multiplied by the number of MPA, unit is cattle. For example, diameter is 200 mm, pressure is 32Mpa hydraulic machine, estimation is 100 multiplied by the square of the PI, multiplied by 32 is cattle 1004800, folding synthetic tonnage is about 100 tons. Involves a detailed calculation.
Plywood hot press pressure how to calculate; note; 300 tons, 600 tons, 800 tons of hot press, 10 layer.15 layer. Two oil cylinder. Four oil cylinder. Hot plate thickness 52mm.4×8 rule machine.
Multiply the radius by 3.14 and then take your stress.
Pressure is according to the calculation of cylinder, such as 320 of the cylinder, pressure theory is 320 tons, but the actual use more than 200 tons, general 400 tons with 2 320, 300 tons with the two 260, 600 tons with the two 360, 800 tons with the two 400
3.14*80*80=20096mm² 15=301440kg X 4=1205760KG