Method for manufacturing small-diameter wood integrated material planed thin sheet
A manufacturing method and technology of small-diameter wood, which is applied in the manufacture of small-diameter laminated lumber sliced veneer, and the field of veneer manufacturing, can solve the problems of large growth stress, restrict the use range of plantation wood, and easily deform and warp, and achieve simplification. Process, save heat energy consumption, reduce the effect of cutting resistance
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Embodiment 1
[0043] Embodiment 1: Continuous high-temperature ironing and leveling dryer dedicated to the present invention
[0044] refer to figure 2 , this continuous high-temperature ironing and leveling dryer includes a frame (omitted in the figure), an oil medium heating and circulation device 1, a pressure and gap adjustment device 2, a front rolling table 3, and a rear rolling table 4. Between the platform and the back rolling platform, the long ring-shaped upper steel belt 7 and the lower steel belt 8 driven by the tension roller 5 and the drive roller 6 are set up and down. On the lower part of the upper steel strip, two upper hot plates 9 arranged front and back are provided, and two lower hot plates 10 arranged front and back are arranged under the upper part of the lower steel strip; in the upper hot plate and the lower hot plate Heating pipes 11 are respectively provided, and several rolling rollers 12 protruding from the surface of the upper heating plate and the lower heat...
Embodiment 2-4
[0047] Embodiment 2-4: the preparation of composite reagent used in the present invention
[0048] The weight ratio (unit: kilogram) of each embodiment raw material is shown in Table 1.
[0049] The preparation method is: (taking Example 3 as an example, other examples are basically the same as Example 3 except that the amount of raw materials is different)
[0050] After adding 15 kg of ammonium sulfite, 5 kg of ammonium bisulfite and 5 kg of urea into 175 kg of water, adjust the pH to 8 with ammonia water.
[0051] Table 1
[0052] Example
Embodiment 5-7
[0053] Embodiment 5-7: the preparation of the moisture-curable adhesive used in the present invention
[0054] The weight proportion (unit: kilogram) of each embodiment raw material is shown in Table 2.
[0055] The preparation method is: (taking Example 6 as an example, other examples are basically the same as Example 6 except that the amount of raw materials is different)
[0056] (1) 388.2 kg of polyethylene glycol 600 was heated and melted at 55°C, and then 30.2 kg of triethylene glycol (n=150) and 10.9 kg of ethylene glycol (n=62) were added and mixed Stir evenly to obtain a polyethylene glycol mixture;
[0057] (2) 4.5 kilograms of vitriol oil is added in the butanone of 495 kilograms, must add the butanone solution of vitriol oil;
[0058] (3) Put the polyethylene glycol mixture into the reaction kettle, first put 80% butanone solution added with concentrated sulfuric acid and mix evenly, then add 900 kg of toluene diisocyanate to react, and the reaction temperature i...
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