Spray evaporation cooling hot press, and single-sided compressed wooden plate and production method thereof

Abstract

The invention provides a spray evaporation cooling hot press which can shorten cooling time, improve productivity and effectively prevent a plate from being cracked and is used for producing a single-sided compressed wooden plate. The spray evaporation cooling hot press comprises upper and lower hot pressing plates, wherein a steam channel, a steam outlet communicated with the steam channel, a heating device and a cooling channel are formed in the lower hot pressing plate. The invention also provides the single-sided compressed wooden plate which can be more practical and by which the utilization rate of wood is improved, and a production method thereof. The production method comprises the following steps of: putting a plate blank between the two hot pressing plates, heating the lower hot pressing plate to a certain temperature, moving the lower hot pressing plate relative to the upper hot pressing plate to press the plate blank, spraying steam with 5 to 8 atmospheric pressures into the steam channel for 5 to 10 seconds, stopping heating the lower hot pressing plate when the compression ratio of the plate blank meets the requirement, introducing a cooling medium into the cooling channel, cooling the lower hot pressing plate, and releasing pressure.

Description

technical field [0001] The technology relates to a steam spray hot press, a single-side compressed wooden board produced by the steam spray hot press and a production method of the single-side compressed wooden board. Background technique [0002] The steam spray hot press is used for the production of wooden boards. It generally includes two hot pressing plates facing each other up and down, that is, the upper hot pressing plate and the lower hot pressing plate. The oil cylinder that moves up and down on the plate is provided with a steam channel in the two hot-pressing plates, and a steam outlet hole communicated with the steam channel is opened on the hot-pressing surface of the two hot-pressing plates; the steam channel communicates with the steam source ; A heating device (such as an electric heating device or an oil heating device) is arranged on the two hot pressing plates. [0003] When using the steam jet hot press to produce wooden boards, put the assembled slab b...

AI Technical Summary

Problems solved by technology

But, its existing problem is: 1, the time of natural cooling of slab is longer, and production efficiency is low

For another example, for the boards used to make furniture, it is generally only necessary to have high hardness on the outer surface and good wear resistance, and the advantages of high hardness and good wear resistance on the inner surface cannot be utilized.

3. After the slab is compressed on both sides, the utilization rate of wood is reduced (or in other words, the waste of wood is caused)

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