Hot press is often used in the production of mechanical equipment goods, plywood hot press is in the basic machine of the hot press to carry out the upgrade of goods. And in China has obtained full marketing promotion and application, plywood hot press according to the working method is divided into two kinds of cycle time type and continuous, China's common is cycle time type double layer hot press.
Many people have not mastered the plywood hot press enough, today we come to introduce it to you the operation steps and common problems.
Plywood hot press operation Procedure
1. Turn on the switch power supply of the hot press to check whether the main parameters of the equipment are within the required scope;
2. Put the hot pressed goods into the hot pressed fixture to make it fixed, and do not touch the hot pressed aluminum alloy plate with your hands to prevent burns;
3. Leave the aluminum alloy plate of the hot press with both hands, check that there is no abnormal phenomenon, and press the hot press power switch to press it down;
4. The hot pressing will rise automatically after the required time, in case of abnormal phenomenon, the emergency power switch should be quickly held down;
5. Do not pile up all dirt on the edge of the hot press or around the power switch to prevent risks.
Plywood hot pressing common problems
1. Hot pressing time: double plate immersion background management has l6 to 24% epoxy resin; In the whole process of hot pressing and dry solidification, the addition polymerization reaction should release a lot of heat, and the thickness of the product is very large, the release of heat is also larger. Therefore, when the thickness of the product exceeds 25mm, each millimeter product thickness is pressed for four minutes; When the thickness of the product is less than 25mm, the thickness of each millimeter product is pressed for five minutes. The hot pressing time is basically carried forward when the working pressure of the enterprise and the temperature of the hot pressing plate reach the standard value of the old rules;
2. Hot pressing temperature: when loading the hot pressing plate temperature: 40 to 50 ℃;
Hot pressing temperature: 145 to 150 ° C; When the billet pressure relief hot pressure plate temperature: 40 to 50 ℃;
3. The time required for the temperature of the self-loading plate to rise to the hot pressing temperature: 30 to 40 minutes when the thickness of the product exceeds 25mm; When the product thickness is less than 25mm: 20 to 25 minutes.
