The full cell method of wood pressure impregnation tank is to make the wood cells full of preservative solution, so that the wood retains a lot of preservatives. This method is suitable for treating wood with water-borne wood preservative and coal creosote oil. The following is a brief introduction to the five stages of the treatment of wood preservative pressure impregnation tank

1、木材壓力浸注罐前真空階段：

1. In the vacuum stage before the pressure impregnation tank of wood:

將木材放入壓力浸注罐中，關好罐門后，開啟真空泵，向浸注罐抽真空（一般為－0.080～－0.095MPa），保持15分鐘，以抽出木材細胞腔中的空氣，使得木材容易被防腐劑浸注，并且減少在卸壓時防腐劑反沖出來，保留較多的防腐劑在木材中。

Put the wood into the pressure impregnation tank, close the door of the tank, start the vacuum pump, vacuum the impregnation tank (generally - 0.080 ～ - 0.095mpa), keep for 15 minutes, so as to extract the air in the wood cell cavity, make the wood easy to be impregnated by preservatives, and reduce the anti-corrosion agent backwashing out during pressure relief, so as to retain more preservatives in the wood.

2、木材壓力浸注罐加防腐劑階段：

2. In the stage of adding preservative to the pressure impregnation tank of wood:

在不關閉真空泵的情況下，即保持原有真空度的條件下，加入防腐劑溶液。如果在防腐劑加滿壓力浸注罐之前關掉真空泵，那么浸注罐中殘留下來的空氣，或由處理溶液產生的蒸氣就被壓縮到浸注罐的上部，那么當繼續加防腐劑溶液時，這些氣體就會充填材堆上部木材中在抽真空時被抽空了的空間，這樣，就使這部分木材吸收較少數量的防腐劑溶液，造成同一批次處理的木材上下不均勻的結果。

In the case of not turning off the vacuum pump, that is, keeping the original vacuum, add preservative solution. If the vacuum pump is turned off before the pressure impregnation tank is filled with preservative, the residual air in the impregnation tank or the vapor generated by the treatment solution will be compressed to the upper part of the impregnation tank. When the preservative solution is added continuously, these gases will fill the space in the upper wood of the timber pile which has been evacuated during vacuum pumping, so that this part of the timber can absorb a small amount of water Preservative solution, resulting in the same batch of wood up and down uneven results.

3、木材防腐罐加壓階段：

3. During the pressurization stage of wood preservation tank:

當防腐劑加滿壓力浸注罐后，關閉真空泵，消除真空后，施加壓力（可以用液壓，也可以用空氣壓），達到所需要的壓力（一般為0.8～1.5MPa）保持一段時間（一般為2～6小時），直到所需要的防腐劑量已經深深的被壓入木材中，或者到木材拒絕吸收防腐劑溶液之點為止。當加壓階段終了，排除壓力時，由于被壓縮在木材中的少量空氣的膨脹作用，在加壓階段被木材吸收的防腐劑溶液有5～15％此時會從木材中反沖出來，回到壓力浸注罐中。

When the preservative is filled with pressure, close the vacuum pump, remove the vacuum, apply pressure (hydraulic pressure or air pressure) to reach the required pressure (generally 0.8-1.5mpa) and keep for a period of time (generally 2-6 hours), until the required anti-corrosion dose has been deeply pressed into the wood, or to the point where the wood refuses to absorb the preservative solution until. At the end of the pressure stage, when the pressure is removed, due to the expansion of a small amount of air compressed in the wood, 5-15% of the preservative solution absorbed by the wood in the pressure stage will recoil from the wood and return to the pressure impregnation tank.

4、木材壓力浸注罐排液階段：

4. During the discharging stage of pressure impregnation tank for wood

在解除壓力后，利用防腐劑溶液的重力作用，或用排液泵，將壓力浸注罐中的防腐劑溶液返回到防腐劑溶液貯槽中。

After the pressure is released, the preservative solution in the pressure infusion tank is returned to the preservative solution storage tank by the gravity of the preservative solution or by the discharge pump.

5、壓力浸注罐后真空階段：

5. In the vacuum stage after the pressure infusion tank:

排盡防腐劑溶液后，關閉所有閥門，接通真空泵，開始后真空階段。后真空的真空度可以和前真空一樣（－0.080～－0.095MPa），或稍低一些，保持10～30分鐘。然后解除真空，放出在后真空階段抽出的防腐劑溶液。打開罐門，取出經處理的木材，防腐處理已完成。

After the preservative solution is exhausted, close all valves, connect the vacuum pump and start the post vacuum phase. The vacuum degree of the rear vacuum can be the same as that of the front vacuum (- 0.080 ～ -0.095mpa), or slightly lower, for 10-30 minutes. Then remove the vacuum and let out the preservative solution extracted in the post vacuum stage. Open the door of the tank and take out the treated wood. The anticorrosion treatment has been completed.