A kind of surface transparent compacting material and preparation method based on high frequency glueless compaction technology
A high-frequency, transparent technology, applied in the direction of manufacturing tools, wood processing equipment, chemical instruments and methods, etc., can solve the problems of no detailed reports on the preparation process, achieve superior physical properties, provide shelf life, and solve the effect of water absorption and rebound
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Embodiment 1
[0043] Embodiment 1. one time compaction wooden method
[0044] Equipment: high-frequency compaction machine (including upper and lower platen with electric heating, cathode and anode with high frequency of 13-40MHz, hydraulic device for pressure, water cooling device, air cooling device)
[0045] method:
[0046] a. Pretreatment: Treat the plank to a moisture content of 8%-18% and a thickness of no more than 10cm to obtain a pretreated plank;
[0047] b. Heating and pressure treatment (softening condition): the pretreated plank is heated to a plank temperature of 120-140°C, and the plank is treated to a moisture content of 4%-6% (moisture content after softening), and kept for 4- 6min, and then pressurize according to the preset compression ratio according to the force direction;
[0048] c. Curing treatment (curing conditions): heat the wood board that has been heated and pressurized with high frequency until the board temperature is 180-220°C (high temperature curing temp...
Embodiment 2
[0051] Embodiment 2. one time compaction wooden method
[0052] Equipment: high-frequency compaction machine (including upper and lower platens with electric heating, cathodes and anodes that provide high-frequency frequencies of 13-40MHz, hydraulic devices that provide pressure, water cooling devices, and air cooling devices)
[0053] method:
[0054] a. Pretreatment: Treat the plank to a moisture content of 8%-18% and a thickness of no more than 10cm to obtain a pretreated plank;
[0055] b. Heat and pressure treatment (softening condition): heat the pretreated wood board until the temperature of the wood board is 80-100 ° C, keep it warm for 4-6 minutes, and then carry out pressure treatment according to the preset compression ratio according to the direction of force;
[0056] c. Heating and compression treatment, the specific method is: heat the wood that has been heated and pressurized to a temperature of 150-155°C with high frequency, keep it warm for 5-10min, the freq...
Embodiment 3
[0060] Example 3. Glass compact material
[0061] Raw materials: glass 40cm × 80cm × 0.8cm; poplar wood 40cm × 80cm × 3.5cm (prepared according to the method of compacting wood in Example 1); PVB film 38cm × 78cm × 0.6mm
[0062] Equipment: high-frequency compaction machine (including upper and lower platen with electric heating, cathode and anode with high frequency of 13-40MHz, hydraulic device for pressure supply)
[0063] Preparation method:
[0064] S1. Laminated structure pretreatment steps: Place PVB film 38cm×78cm×0.6mm and glass 40cm×80cm×0.8cm on a poplar wood board of 40cm×80cm×3.5cm in order to prepare a pretreated laminated structure, put it into high frequency compaction machine;
[0065] S2. High-frequency heat-sealing steps for laminated structures: Use a hot press plate (1.5m*0.8m*0.1m steel plate) to tighten the pretreated laminated structure naturally (applying a pressure of 0.21MPa), and the temperature of the upper surface of the laminated structure to b...
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