(For beginner) Plywood knowledge& Manufacturing Experience Part 11: Discussion about the Effect of Equilibrium Pressure on Plywood manufacturing

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
20096* 15=301440kg
301440* 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

在胶合板面积S不变的情况下,压力F和压强P成正比。而压强的大小,决定了胶合板的紧密程度和抗折强度等基本性能。也就是说,不同压强下,生产出来的成分不变的胶合板成品性能是不同的。所以,我们一般关心压强P是多少,并关心与之对应的成品性能。
压力的计算F=P*S
计量压力表压力=单位压力乘以受压面积除以圆柱压力(热压机轧钢的面积)
压机油缸个数乘以油缸截面积再乘以压力.
比如4支油缸,每只缸径160mm,工作压力15MP
3.14*80*80=20096mm² 15=301440kg X 4=1205760KG
20096* 15=301440kg
301440* 4=1205760kg
就是1205.76吨

胶合板热压机是胶合板生产流程中的主要设备之一,是用来对涂胶组合后板坯进行热压胶合的设备,不同品种的胶合板对压机的性能有不同的要求:普通胶合板、航空胶合板、塑料贴面板、木材层积塑料板、船舶胶合板的制造所要求的压力依次增大.胶合板热压机按作业方式分周期式和连续两种,国内常用的是周期式多层热压机.它由三大部分组成:热压机本体、控制驱动部分(液压系统和电控系统)、加热系统.
热压贴面机,双贴面热压机,单贴面热压机,特点:热压系统升温快,加热系统、导热系统轻精心分段设计,热耗能低、导热均匀;机构设地合理,配件加工精密度高,工艺参数调整范围宽,控制过程设计合理,能满足各种贴面生产的工艺要求.用途:贴面压机系列机型适用于中性家具厂或小型人造板二次加工(专业贴面)工厂,用来热压粘合家具板件、建筑隔断、木门和在各种人造板:如胶合板、细木工板、中纤板、刨花板表面压贴各种装饰材料:装饰纸、装饰布、三聚氰胺防火板、金属箔、人造与天然薄木、天然薄木拼花;不可以用于单版干燥整平,彩色装饰木片的整平、定形.
根据以上内容,可以对比一下.

在使用液压机压合胶合板时 根据压力表读数如何计算板上实际压力值

液压机在工作时压力表上会显示当前的压力是多少公斤或者多少兆帕,这只是表示液压站输出的每平方里米上的压力大小,比如表上显示为20kg/平方厘米,再看液压机的油缸活塞面积是多大,比如液压缸直径是10cm,那么他的受力面积就是78.5平方厘米,再用78.5去乘以20kg/平方厘米的受力得出液压机当前压力是1570kg

F=P*S,表读数乘以压模的上模面积。

估算一吨就是等于一万牛.一牛的力作用在一平方毫米的地方的压强就是1MPa,机械行业默认就是用毫米为单位,就直接看图纸计算缸的横截面积乘以是多少MPa,单位就是牛了.比如,缸径是200毫米,压力是32MPa的液压机,估算就是100的平方乘以π,再乘以32,就是1004800牛,折合成吨位就是100吨左右.详细的计算牵涉就多了.

胶合板热压机压力怎么算;注;300吨,600吨,800吨热压机,10层.15层.两油缸.四油缸.热平板厚52mm.4×8尺机.

半径相乘再乘以3.14然后在乘你的压力就好了。

压力是根据油缸计算的,比如320的油缸,理论压力是320吨,但是实际也就用个200多吨,一般400吨的就采用2个320的,300吨的采用2个260的,600吨的采用2个360的,800吨的采用2个400的

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