Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for softening bamboo for planing

A bamboo and slicing technology, which is applied in wood processing, wood processing equipment, wood processing details, etc., can solve the problems of limiting the scope of bamboo use, long production cycle, and reducing use value.

Inactive Publication Date: 2005-01-26
DEHUA BUILDING MATERIAL SUZHOU
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This normal-pressure water boiling method has high production cost, large floor space, long production cycle, unstable softening quality, and due to the limitation of its process, it has a greater destructive effect on the adhesive layer, which is harmful to the production of modified urea-formaldehyde resin. The influence of bamboo glulam is particularly obvious, so that it is difficult to slice and obtain thin bamboo with a thickness of more than 1 mm and string-cut texture, which limits the utilization range of bamboo and reduces its utilization value.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for softening bamboo for planing
  • Method for softening bamboo for planing
  • Method for softening bamboo for planing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: Adopt the bamboo that produces in 6 years, produce bamboo laminated lumber after splitting, flattening, horizontal splicing and lamination. The texture is string-cut texture. 400 mm high, the initial average moisture content is 40%, the initial bamboo temperature is 26.6°C, and the room temperature is 27.8°C when softened.

[0012] After aligning the ends of the bamboo glulam and removing the burrs, place the bamboo glulam between the two poles of the high-frequency generator. The width of the plate electrode should be close to the size of the upper and lower surfaces of the bamboo glulam; The plate electrode is in close contact with the upper and lower surfaces of the bamboo glulam, and an appropriate amount of weight can be added to the surface to increase the closeness between the electrode and the surface of the bamboo glulam, and improve the heating efficiency. The softening time is 40 minutes.

[0013] Slicing the softened bamboo glulam, the thicknes...

Embodiment 2

[0016] Bamboo glulam adopts 6-year-old bamboo, which is 11-layer bamboo glulam produced after splitting, flattening, horizontal splicing and lamination. The specification of bamboo glulam is 2540mm (length)×1350mm (width)×220mm (height). The initial average moisture content is 36%, the initial bamboo temperature is 22.1°C, and the room temperature is 24°C when softened.

[0017] Bamboo glulam preparation before softening:

[0018] After aligning the ends of the bamboo glulam and removing the burrs, place the bamboo glulam between the two poles of the high-frequency generator. The width of the plate electrode should be close to the upper and lower surfaces of the bamboo glulam: and make the two The plate electrode is in close contact with the upper and lower surfaces of the bamboo glulam, and an appropriate amount of weight can be added to the surface to increase the closeness between the electrode and the surface of the bamboo glulam and improve the heating efficiency.

[001...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is a softening method for planning bamboo, the bamboo with water content more than 8% is placed between the first electrode and the second electrode to carry on heat softening process, the process time is 10-180 minutes. The voltage of the high frequency electric field is 2500-3500v, the frequency is 6-10 MHz, and the distance between the two electrodes is less than 1.5 meters. The invention can shortens the softening period, and the effect is excellent.

Description

technical field [0001] The invention relates to a method for softening bamboo. Background technique [0002] In the prior art, in order to slice the bamboo after it is integrated, it is necessary to soften the bamboo so that it can be sliced ​​into thin bamboo slices. At present, the commonly used softening methods include atmospheric pressure water boiling method and chemical agent method. The chemical agent method is not of high practical application value because of its high cost, great damage to the adhesive layer, and pollution to the environment. The boiling method requires a cooking tank and steam, the water temperature is required to be 40-60°C, the heating rate is 1.5-°C / hour, and the softening time is 24-48 hours in summer and 48-72 hours in winter. The specific softening time is determined by the volume of bamboo glulam. Generally, for every 1 cm increase in width or thickness, the time needs to be extended by about 0.8 to 1 hour. This ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B27K5/06
Inventor 庄启程黄永南柳桂续
Owner DEHUA BUILDING MATERIAL SUZHOU