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Combined preheating and hot-pressing method for continuous molding of large-scale heavy-weight bamboo lumber

A technology of bamboo recombined wood and hot pressing method, which is applied to the jointing of wooden veneers, wood processing equipment, manufacturing tools, etc., can solve the problems of unsatisfactory continuous production and large thickness of beams and columns, and achieve shortening of heating time and mature The effect of shortening the period and improving the efficiency of hot pressing

Active Publication Date: 2016-01-20
福建省八一村永庆竹木业开发有限责任公司
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Problems solved by technology

Due to the large thickness of beams and columns, ordinary contact heating and heat conduction methods cannot meet the needs of continuous production, so it is imperative to find a suitable gluing and curing method

Method used

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  • Combined preheating and hot-pressing method for continuous molding of large-scale heavy-weight bamboo lumber
  • Combined preheating and hot-pressing method for continuous molding of large-scale heavy-weight bamboo lumber
  • Combined preheating and hot-pressing method for continuous molding of large-scale heavy-weight bamboo lumber

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Embodiment Construction

[0020] Control attached figure 1 , a combined preheating and hot-pressing method for continuous molding of large-scale heavy bamboo lumber, through the microwave preheating of the slab 1 of the continuous bamboo lumber that has been paved in the microwave preheating tunnel kiln 2 on the assembly line, microwave preheating is performed first, and the rapid improvement The temperature of the surface layer and the core layer of the slab 1 of the continuous bamboo recombined wood reaches about 70°C, and then the slab 1 of the continuous bamboo recombined wood after preheating continues to move forward in the continuous hot press 4, and at the entrance of the continuous press After being compressed to a certain extent, the side steaming preheating is carried out to raise the temperature of the surface layer and the core layer to above 100°C, followed by the conduction heating of the continuous slab on the upper and lower heating plates of the continuous press and combined heating wi...

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Abstract

The invention provides a joint preheating hot-pressing method for continuously forming large-sized bamboo scrimber. The joint preheating hot-pressing method for continuously forming the large-sized bamboo scrimber comprises the technological steps of (a) performing online microwave preheating on continuous slabs; (b) performing online steam spraying pre-heating on the continuous slabs; (c) continuing to perform hearing and curing through a continuous pressing machine. The joint preheating hot-pressing method has the advantages that the method can enable one-time utilization rates of moso bamboos and other large-diameter bamboo materials for manufacturing bamboo scrimber to be improved from 20%-50% to above 80%; the large-sized bamboo scrimber are continuously produced in a microwave and steam spraying joint preheating mode, a heating time can be shortened, and the hot-pressing efficiency of the large-sized bamboo scrimber is greatly improved; continuous production of the large-sized bamboo scrimber is possible, and a guarantee is also provided for large-scale architectural application of the bamboo scrimber.

Description

technical field [0001] The invention relates to a combined preheating and hot-pressing method for continuous molding of large-scale bamboo heavy wood, which belongs to the technical field of wood-based panel manufacturing in the wood industry. Background technique [0002] Bamboo recombined wood (also known as recombined bamboo, heavy bamboo) is a new type of bamboo wood-based panel for structure and decoration that has been improved and enhanced on the basis of bamboo laminates. It started to be trial-produced in the laboratory in the 1990s, and gradually formed a large-scale production in bamboo processing enterprises at the beginning of this century. It has become one of the mainstream products in my country's bamboo processing industry. According to preliminary statistics, there are more than 60 existing production enterprises, with an annual production capacity of 600,000 m 3 above. [0003] The main production process of bamboo reconstituted wood is to remove the bam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/08
Inventor 许斌张齐生蒋身学何文程大莉
Owner 福建省八一村永庆竹木业开发有限责任公司
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