CN108621272A - A kind of production method of solid wood camber component steam pressure rapid shaping - Google Patents
A kind of production method of solid wood camber component steam pressure rapid shaping Download PDFInfo
- Publication number
- CN108621272A CN108621272A CN201710181480.XA CN201710181480A CN108621272A CN 108621272 A CN108621272 A CN 108621272A CN 201710181480 A CN201710181480 A CN 201710181480A CN 108621272 A CN108621272 A CN 108621272A
- Authority
- CN
- China
- Prior art keywords
- softening
- plank
- aqueous solution
- production method
- steam pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27H—BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL
- B27H1/00—Bending wood stock, e.g. boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/06—Softening or hardening of wood
Abstract
A kind of production method of solid wood camber component steam pressure rapid shaping, it is characterised in that：The apparent size of plank is cut into part dimension in softening process, it is long 2cm that board dimension reserves tolerance compared with part dimension, wide 0.2cm, plank after cutting is put into white water case by thick 0.1cm. is passed through saturated vapor progress boiling, it is handled 15 40 minutes with 100 DEG C of saturated vapor, 60 softening agents of HB is added in aqueous solution, softening agent is solid content 60, pH value 45, diluted concentration 5 8%；To prevent Wood staining phenomenon from occurring in boiling, 0.1% oxalic acid is also added in aqueous solution.The beneficial effects of the invention are as follows：Utilization rate of raw materials is high, improves 40% compared with sawing process, rejection rate declines 15%, and efficiency improves 90%, and strength of parts is high, aesthetic in appearance；Digestion time is substantially reduced, effect is improved, has saved the energy；Avoid the generation of Wood staining phenomenon.
Description
Technical field
The present invention relates to the production methods that timber is processed into arc part, and in particular to a kind of solid wood camber component steam pressure is fast
The molding production method of speed.
Background technology
The camber component of previous production dining chair is all made of conventional sawing method, is produced as curved saw sawing-milling type-sand
Light.This technique timber waste is very big.Strength of parts is low, is easily broken off at sawing twill, to which rejection rate is very high, and component color
Difference is larger unsightly, and labor intensity is high, low production efficiency, to which the production cost is very high.Produce the arc part of dining chair also at present
After timber can be softened with cooking process, swaging is dried to realize, but digestion time is too long, generally requires 1-3 hours, Er Qieyou
Blue change phenomenon also occurs for Shi Mucai.
Invention content
The purpose of the present invention is：Design a kind of production method of solid wood camber component steam pressure rapid shaping.
The technical proposal of the invention is realized in this way：The molding of solid wood camber component flexes be a kind of molding of chipless solid wood plus
Work method, this programme are divided into three phases：1. softening, 2. bendings, 3. sizings.
1. softening：Sofening treatment can improve the bending property of timber, make timber have it is temporary can retrospective to bend
Molding, to reach flexible performance, it is necessary to light softens timber, and softening method is cooking process,WaterDivide and heat is worked as
Make the softening agent of timber.Then retrospective is bad for soft cook, and it is insufficient to be easy bending degree under pressure, boiling excessively then timber
Compression strength reduces, and timber is difficult to bear pressure and damage.Specifically operating procedure is：First the apparent size of plank is cut into
Part dimension, it is long 2cm that board dimension reserves tolerance compared with part dimension, and the plank after cutting is put by wide 0.2cm, thick 0.1cm.
It is passed through saturated vapor in white water case and carries out boiling, the length of the digestion time and tough beginning moisture content of timber, seeds and timber
Thickness is related.It is handled 15-40 minutes with 100 DEG C of saturated vapors, HB-60 softening agent (HB-60 softening agents is added in aqueous solution
It is commercially available in specialty store), softening agent is solid content 60, pH value 4-5, diluted concentration 5-8%；It is to prevent Wood staining phenomenon in boiling
Occur, also add 0.1% oxalic acid in aqueous solution, to release the blue generation become.Softening agent can make the lignin of timber, cellulose
Noncrystalline domain volume expansion improves the retrospective of timber, and timber is made to be rapidly reached the most suitable moisture content of bending, i.e. lumber fibre
The moisture content 20%-30% of saturation point, strength of wood is minimum at this time, and producible deformation is maximum.After adding softening agent, significantly
The time for shortening steam treatment, less energy can be consumed in a relatively short period of time, timber is changed into the shape that can be bent
State.
2. bending：Hydraulic bending molding is that the plank after boiling is put into white punching block on piece, and plank is put into plate when touching on piece
Gap between the cross section and template of material will be filled and led up, to reduce the fracture of plank when mold squeezes.Place into hydraulic press molding
It is squeezed on mold, extrusion time makes it generate ideal camber depending on the material of plank, by hydraulic press pressure.
3. sizing：It is that cooling and drying processing is carried out to camber component, eliminates necessary moisture in bending process flow, eliminates
The tension that inside is formed when bending, method is to place it in low temperature drying room to be dried, in order to make camber component keep shape
Shape is constant, will touch piece and is placed on drying frame together.Drying temperature uses 60 DEG C, and the time is 5-8 hours, is less than 12% in moisture content
When, so that the component of brake forming is shaped.Drying time of the plank on mold will be controlled strictly, and the time is too short, camber component
Radian will produce rebound, overlong time, and component will produce sesame type breach.
The beneficial effects of the invention are as follows：Utilization rate of raw materials is high, improves 40% compared with sawing process, rejection rate declines 15%, labor
Efficiency of movement improves 90%, and strength of parts is high, aesthetic in appearance；Digestion time is substantially reduced, effect is improved, has saved energy
Source；Avoid the generation of Wood staining phenomenon.
Specific implementation mode
By taking the camber component of dining chair as an example, the apparent size of plank is first cut into part dimension, board dimension is compared with component
It is long 2cm that size, which reserves tolerance, and the plank after cutting is put into white water case and is passed through saturated vapor by wide 0.2cm, thick 0.1cm.
Boiling is carried out, the length of digestion time is related with the tough beginning moisture content of timber, seeds and the thickness of timber.With 100 DEG C of saturation
HB-60 softening agents (HB-60 softening agents are commercially available in specialty store) are added in steam treatment 15-40 minutes in aqueous solution, and softening agent is
Solid content 60, pH value 4-5, diluted concentration 5-8%；To prevent Wood staining phenomenon from occurring in boiling, also add in aqueous solution
0.1% oxalic acid, to release the blue generation become.Softening agent can make the noncrystalline domain volume expansion of the lignin of timber, cellulose, improve
The retrospective of timber makes timber be rapidly reached the most suitable moisture content of bending, i.e. the moisture content 20%- of fibre saturation point
30%；It places on hydraulic pressure forming machine mould and squeezes, extrusion time makes its production depending on the material of plank, by hydraulic press pressure
Raw ideal camber；It is dried in placing it in low temperature drying room, in order to make camber component keep shape invariance, piece will be touched
It is placed on drying frame together, drying temperature uses 60 DEG C, and the time is 5-8 hours, when moisture content is less than 12%, makes brake forming
Component sizing.
Claims (1)
1. a kind of production method of solid wood camber component steam pressure rapid shaping, production stage is softening, bending, sizing, feature
It is：The apparent size of plank is cut into part dimension in softening process, board dimension reserves tolerance compared with part dimension and is
Plank after cutting is put into white water case by long 2cm, wide 0.2cm, thick 0.1cm. is passed through saturated vapor progress boiling, with 100
DEG C saturated vapor handle 15-40 minute, in aqueous solution be added HB-60 softening agents, softening agent be solid content 60, pH value 4-5,
Diluted concentration 5-8%；0.1% oxalic acid is also added in aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181480.XA CN108621272A (en) | 2017-03-19 | 2017-03-19 | A kind of production method of solid wood camber component steam pressure rapid shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181480.XA CN108621272A (en) | 2017-03-19 | 2017-03-19 | A kind of production method of solid wood camber component steam pressure rapid shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108621272A true CN108621272A (en) | 2018-10-09 |
Family
ID=63707632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710181480.XA Pending CN108621272A (en) | 2017-03-19 | 2017-03-19 | A kind of production method of solid wood camber component steam pressure rapid shaping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108621272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829451A (en) * | 2021-08-20 | 2021-12-24 | 阜南县永盛工艺品有限公司 | Process method for expanding, softening and bending wooden flower vehicle hub plate |
-
2017
- 2017-03-19 CN CN201710181480.XA patent/CN108621272A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829451A (en) * | 2021-08-20 | 2021-12-24 | 阜南县永盛工艺品有限公司 | Process method for expanding, softening and bending wooden flower vehicle hub plate |
| CN113829451B (en) * | 2021-08-20 | 2022-06-21 | 阜南县永盛工艺品有限公司 | Process method for expanding, softening and bending wooden flower vehicle hub plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181009 |
|
| WD01 | Invention patent application deemed withdrawn after publication |