Some standard content:
UDC 676. 26. 064. 2
National Standard of the People's Republic of China
GB/T 15102—94
Surface decorated wood-based panels with paper impregnated thermosetting resins1994-06-27Promulgated
National Technical Supervision Bureau
1995-05-01Implementation
Subject content and scope of application
Cited standards
3 Terms
4 Classification
5 Technical requirements
6 Inspection and test methods
6.1 Appearance quality inspection conditions
6.2 Specification and size inspection methods
6 .3 Test methods for physical and chemical properties
6.3.1 Preparation and size requirements of test specimens and test pieces Test method for static bending strength...
Test method for internal bonding strength
Test method for moisture content
Test method for density
Test method for water absorption thickness expansion rate
Test method for parallel plate surface screw holding force
Test method for surface bonding strength.
Test method for surface resistance to cold and heat cycles||tt ||Test method for surface scratch resistance·
Test method for dimensional change performance·
Test method for surface wear resistance
Test method for surface cigarette burn resistance·6.3.14
Test method for surface heat resistance·
Test method for surface pollution and corrosion resistance
Test method for surface cracking resistance…
Test method for surface water vapor resistance
7 Inspection rules
8 Marking, packaging, transportation and storage
Appendix A Method for making grinding wheels (supplement) Table of contents
Appendix B Basis for judging whether appearance quality defects are obvious or not (reference) 9
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（16）
（20）
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National Standard of the People's Republic of China
Impregnated film paper facing artificial board
Surface Decorated wood-based panels with paper impregnated thermosetting resins1Subject content and scope of application
GB/T15102—94
This standard specifies the classification, technical requirements, inspection methods and inspection rules, as well as marking, packaging, transportation and storage of impregnated paper veneer panels (referred to as veneer panels).
This standard applies to decorative panels made by impregnating amino resin with special paper, drying to a certain degree of solidification, laying on the surface of artificial board substrates such as creative board, medium-density fiberboard, hardboard, etc., and hot pressing. 2 Reference standards
GB2828 Count sampling procedure and sampling table for batch inspection (applicable to inspection of continuous batches) GB/T4897 Particleboard
GB4979 Sheet-shaped abrasive cloth
GB11718 Medium-density fiberboard
GB12626 Hard fiberboard
3 Terms
3.1 Surface decorated particle board with paper impregnated thermosetting resins
Surface decorated artificial board made of particleboard as base material. 3.2 Surface decorated medium-density fiberboard with paper impregnated thermosetting resins
Surface decorated artificial board made of medium-density fiberboard as base material. 3.3 Surface decorated hard fiberboard with paper impregnated with thermosetting resins
Decorated wood-based panels made of hard fiberboard as the substrate. 3.4 Decorative single-faced wood-based panels Decorative wood-based panels with decorative film paper on one side and balancing film paper on the other side. 3.5 Decorative double-faced wood-based panels Decorative wood-based panels with decorative film paper on both sides and both sides for decorative purposes. 3.6 Embossed wood-based panels Decorative wood-based panels with embossed templates on the surface of the product and concave and convex patterns that coordinate with the decorative pattern. 3.7 Frosting and watermark Frosting, also known as white frosting, is an opaque white spot on the surface of the product; wet frosting, also known as water marks, is a foggy mark on the surface of the product. 3.8 Porosity of surface Approved by the State Administration of Technical Supervision on June 27, 1994 and implemented on May 1, 1995
Pinhole-like defects on the surface of products.
GB/T 15102—94
3.9 Spots, dirt and similar surface defects Dust spots in the base paper, ink marks during printing and shaving, and decorative defects caused by debris during processing. 3.10 Colour matching The colour of a certain pattern is visually identical to the colour of a given pattern. 3.11 Gloss difference The difference in reflective phenomena on the surface of products.
3.12 Misaling between panel and impregnated paper The lack of paper on the product panel due to the misalignment between the film paper and the base material. The white edge of decorative paper printing is also included in the misalignment of the panel. 3.13 Tearing of impregnated paper Discontinuous pattern on the product surface caused by partial breakage of the film paper 3. 14 Bare substrate spots due to defective surface covering Defects of substrate exposed due to damage to the film paper. 3.15 Pervious spots of impregnated paper Defects of substrate on the board surface due to insufficient covering capacity of the decorative film paper. 3.16 DCNTs
Jagged defects on the edge of the decorative panel caused by the product during edge trimming and post-processing. 3.17 Cracks
Irregular cracks on the product surface caused by excessive curing of the resin during hot pressing or different expansion and contraction of the surface layer and the substrate. 3.18 Blisters5
Abnormal protrusions caused by gas inclusions on the product surface. 3.19 Inclusions
Abnormal protrusions caused by solid objects on the product surface. 3.20 Delamination
The separation phenomenon between the substrate itself, the film paper itself, or the film paper and the substrate. 4 Classification
4.1 According to the substrate of the artificial board:
impregnated film paper veneer particleboard;
impregnated film paper veneer medium density fiberboard, impregnated film paper veneer hard fiberboard.
4.2 According to the decorative surface:
single veneer artificial board,
double screen surface artificial board;
embossed veneer artificial board.
5 Technical requirements
5.1 point
According to the appearance quality of the product, it is divided into double-faced superior products, first-class products, qualified products and single-faced superior products, first-class products, qualified products. The quality requirements of each grade are shown in Table 1.
Defect name
Gum flower
Not obvious
Not obvious
Not obvious
Blasting face
Color mismatch
Uneven gloss
Paper crack
Partial paper missing
Defect name
Dry and wet flower
Not obvious
Not obvious
GB/T 15102--94
Table 1 Appearance quality requirements for each grade of products
Approved film paper facing particleboard or impregnated film paper facing medium density fiberboard superior product
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
≤3mm
Superior product
Not allowed
No Allowed
Not allowed
First-class products
Not allowed
23mm2Not allowed
20~50mm
3 places/m allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Qualified products
On the surface
Not allowed
The total area does not exceed 5% of the board surface
20~50 mm, 3 places/m2 are allowed
The total area does not exceed 3% of the board surface
Length ≤100mm, 2 places/m are allowed,
Affecting the decorative layer is not allowed
Length ≤200mm+4 places/m are allowed
Affecting the decorative layer is not allowed
Not allowed
2050mm, 1 place/m is allowedwww.bzxz.net
Not allowed
Only one side is allowed, width ≤10mm
Only ~ side is allowed, width ≤20mm
≤10/m
The obvious total area does not exceed 5% of the board surface
The obvious total area does not exceed 5% of the board surface
≤20 mm*, 1 place/m2 is allowed
≤20 mm*, 3 places/m2 are allowed
≤100 mm is allowed Place/sheet
≤20 mm*, 1 place/m2 is allowed
Impregnated paper ethylene surface hard fiberboard
First-class products
Not allowed
Total area does not exceed the board surface
≥3 mm*Not allowed
20~50mtm
3 places/
Qualified products
On the surface
Total area does not exceed 5% of the board surface
Total area does not exceed 10% of the board surface
20~50mm*, 3 places/m
Total area does not exceed 3% of the board surface
Defects
Not obvious
Not obvious||tt ||Cutting holes
Color mismatch
Glossy groove
Paper tear
Partial paper shortage
Superior products
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
Not allowed
GB/T 15102—94
Continued Table 1
Glue film paper facing hard fiberboard
First-class
Not allowed
Length ≤ 200mm, allowed
3 places/m2;
Not allowed to affect the decorative layer
20 ~50mm, 3 allowed
Not allowed
Not allowed
Not allowed
Not allowed
The obvious total area does not exceed
5% of the board surface
Not allowed
Not allowed
Not allowed
Not allowed
Qualified products
Any surface
Length ≤200mm, 2 places/m allowed;
Not allowed to affect the decoration
Length more than 300mm is allowed 3 places/m. Color affecting the decorative layer is not allowed
20~50 t1m. 3 allowed 1/㎡2
2U mm2, 3 pieces allowed, m
≤100mm, 1 place/sheet allowed
≤20 m, 1 place/
Note: (The front of the single-faced artificial board shall meet the front requirements of Table 1, and the appearance quality of the back shall not have defects that affect the use. ② Serious defects that affect the use and decorative effect that are not listed in the table, such as surface cracking, delamination, corner defects (within the nominal size), etc., are not allowed in all grades of products.
5.2 Specifications and Deviations
Format dimensions and deviations shall comply with the provisions of Table 2. 5.2.1
Format dimensions and deviations
Length and width allowable deviations
The length and width allowable deviations of veneered particleboard are both 0~5 The length and width allowable deviations of veneered medium density fiberboard are both ±3 The length allowable deviation of veneered hardboard is ±5; the width allowable deviation is ±3
Note: Products with other surface sizes can be produced by agreement between the supply and demand parties. 5.2.2 Thickness specifications and deviations
GB/T 15102--94
The thickness specifications of veneer planer are 10.0, 12.0, 14.0: 16.0, 19.0, 22.0, 25.0, 30.0 mm, etc. The thickness specifications of veneer inter-density fiberboard are 12.0, 15.0, 16.0. 18.0, 19.0, 21.0, 24.0, 25.0 mm, etc. The thickness specifications of veneer base fiber paste are 3.0, 4.0: 5.0, etc. The floating deviation of veneer artificial board shall not exceed +0.5n1m. Products of other thickness specifications may be produced by agreement between
both parties. 5.2.3 Line difference
Within the format size specified in Table 2, the allowable value of the difference in the length of the two diagonals shall meet the requirements of the base material standard respectively. For products of other formats, the supply and demand parties shall agree.
5.2.4 Edge Straightness
The edge straightness of veneered particleboard and veneered medium density fiberboard shall not exceed 1.0/1000 (mm/mm); the edge straightness of veneered hardboard shall not exceed 1.5/1000 (mm/mm). 5-2.5 Warp
The maximum warp of veneered particleboard and veneered medium density fiberboard shall not exceed 0.5%, and the maximum warp of veneered hardboard shall not exceed 1.5%.
The physical and chemical properties shall comply with the requirements of Table 3.
Table 3 Physical and chemical properties of rain-decorated artificial board
Test items
Static strength
Internal bonding strength
Moisture content
Water absorption thickness expansion rate
Parallel plate grip force
Surface bonding strength
Surface resistance to cold and heat
Surface resistance to scratch
Dimension change
Abrasion value
Pattern
Surface resistance to cigarette burning
Surface front dry heat
Surface resistance to pollution and corrosion
Surface resistance to cracking
Surface resistance to water vapor
mg/10or
Nominal thickness of film-coated particleboard or film-coated medium-density fiberboard.mm
≤13.0>13. 0~20.0>20. 0~25.0>25. 0~32.>32.0
Note: The surface performance of double-faced artificial boards on both sides should meet the index requirements. 11.0
0. 69 - 0. 90
≥ 0.25
No cracks, no bubbling
≥1.5NNo continuous scratches on the surface
More than 50% of the pattern should be retained after grinding for 100 turns
No road bottom phenomenon after grinding for 350 turns
No black spots, cracks, bubbles and other changesNo cracks, no bubbling
No pollution, no corrosion
0-1 level
No protrusions, discoloration and cracks are allowed
Diffuse film paper decoration
Hard fiber board
3.0--10.0
5.3.1Quality requirements for the base material of veneer artificial board, GB/T 15102-94
Particleboard should meet the technical requirements of Class A board in GB/T 4897: Medium density fiberboard should not be lower than GB The technical requirements of 70 type second-class products or 80 type second-class products in GB11718.1~11718.2 shall be no less than the technical requirements of second-class products in GB12626 for hard fiberboard. 6 Inspection and test methods
6.1 External quality inspection conditions
6.1.1 The height of the inspection table is about 700 mtm. 6.1.2 The lighting source is three 40W fluorescent tubes, with a distance of about 400mm between the tubes. The length direction of the tubes is parallel to the length direction of the board. The height of the tubes from the inspection table is about 2 m. Natural light should not affect the inspection. 6.1.3 The inspector shall have normal vision (or corrected to normal vision) and conduct the inspection at both ends of the length of the plate, with a gauge distance of 0.5~1.5m and a viewing angle of 30°~90°
6.2 Specification and size inspection method
6.2.1 Instruments and tools
6.2.1.1 Micrometer, accuracy 0.01 mm. 6.2.1.2 Steel ruler, accuracy 0.5mm.
6.2.1.3 Steel tape measure, accuracy 1mm.
6.2.2 Dimension inspection
Measure the length in the width direction of the plate and the width in the length direction of the plate at any position with a steel tape measure, accurate to 1 mm. 6.2.3 Thickness dimension inspection
Measure at least 15mm from the edge of the plate with a dry ruler on the four sides of the plate, and measure any point on each side with an accuracy of 0.01mm. 6.2.4 Diagonal length inspection
Use a steel tape measure to measure the diagonal length of the board, accurate to 1 mm. 6.2.5 Board edge straightness inspection
Use a string to push the two corners of the board and straighten it (as shown in Figure 1), and use a steel ruler to measure the maximum distance between the string and the board edge, accurate to 0.5mm. All four sides of the board should be measured and the maximum value should be taken
The finisher checks the board
6.2.6 Warpage inspection
Figure 1 Schematic diagram of board edge straightness inspection
Put the product concave surface upward on a horizontal surface, connect the two sides with a string, and use a steel ruler to measure the maximum chord height, accurate to 0.5mm. The ratio of the maximum chord height to the diagonal length is the warpage, expressed as a percentage, accurate to 0.1%. 6.3 Test methods for physical and chemical properties
6.3.1 Preparation and size regulations of samples and test pieces6.3.1.1 Samples and test pieces should be extracted from products that have been stored for more than 24 hours. 6.3.1.2 The samples of veneered particleboard and veneered medium density fiberboard shall be prepared from the sample according to Figure 2. Each sample shall be marked with a number and marked with "△" in the upper right corner. The preparation position, size specifications and quantity of the test pieces on the sample shall be in accordance with the requirements of Figure 3 and Table 4. 6
0 + 401
GB/T15102—94
1/2 Sample 4 length
Sample length
Figure 2 Schematic diagram of sample preparation
10h + 50
Figure 3 Schematic diagram of some physical and mechanical properties test pieces made on samples No. 1 and 3.5Mirror
Test items
Density, moisture content
Water absorption thickness expansion rate
Static bending strength
Internal joint strength
Surface bonding strength
Parallel plate surface
Screw holding force
Surface scratch
Heat cycle
Surface wear resistance
Surface cigarette burn resistance
Surface dry heat resistance
Surface pollution and corrosion resistance
Surface water vapor resistance
Surface cracking resistance
Dimension change
GB/T15102--94
Table 1 Physical and chemical properties test pieces of veneered particleboard and veneered medium density fiberboard Test piece size
100.0X100.0
25.0×25.0
(10h+50.0)X50.0
50.0×50.0
50.0×50.0
150.0×50.0||tt| |100.0X100.0
100.0×100.0
100.0X100.0
100.0×100.0
200.0×200.0
50.0×50.0
100.0×100.0
250.0×250. 0
200.0×50.0
Number of test pieces
Connection: The edges and corners of the test piece should be straight, and the length and width should be allowed to deviate by 0.5n1m. Specimen
Specimen location
Specimen number
For nominal thickness
s15m
Not required
6.3.1.3 The specimens of veneered hardboard shall be prepared from the sample according to Figure 4. Each specimen shall be marked with a number and marked with A" in the upper right corner. The preparation position, size specifications and quantity of the specimens on the specimen shall be carried out according to Figure 5 and the requirements of Installation 5. 3ula
Specimen preparation joint diagram Intent
Test items
Density, moisture content
Static bending strength
Surface scratch resistance
Surface resistance to cold and hot cycles
Surface wear resistance
Wheat flour resistance to baking and burning
Surface dry heat
Surface contamination and corrosion
Surface resistance to water vapor
Surface ketone cracking
GB/T15102--94
25 +50
Fig.5 Schematic diagram of preparing some physical and mechanical properties specimens on No. 1, 5 and 9 test pieces Table 5 Physical and chemical properties of veneer hardboard test pieces Trial size
100.0X100. 0
(25h+50.0)×75. 0
100.0×100.0
100. 0× 100. 0
100.0×100.0
100.0X100.0
200.0X200.0
5u. 0× 50. 0
100.6×100.0
250.0X250.0
Number of test pieces
Note: the corners of the test piece should be straight and without front edge. The allowable deviation of length and width is ±0.5m6.3.2 Test method for static bending strength
or the piece is broken at
Test piece number
is the standard thickness
The static bending strength of veneered particleboard and veneered medium density fiberboard shall be tested in accordance with Article 5.7 of GB/T4897: The static bending strength of veneered hardboard shall be tested in accordance with the provisions of GB12626.9. 6.3.3 Test method for internal bonding strength||tt ||The internal bonding strength of veneer panels shall be tested in accordance with Article 5.5 of GB/T4897. During the test, the surface of the test piece shall be sanded and glued with HY-914 or glue with similar properties. 6.3.4 Moisture content test method
The moisture content of veneer panels shall be tested in accordance with Article 5.3 of GB/T4897. Only three test pieces shall be tested for each sample. 6-3.5 Density test method
The density of veneer panels shall be tested in accordance with Article 5.2 of GB/T4897. Only three test pieces shall be tested for each sample. 9
6.3.6 Water absorption thickness expansion rate test method
GB/T 15102—94
The water absorption thickness expansion rate of the veneer artificial board shall be tested in accordance with Article 5.4 of GB/T4897. 6.3.7 Test method for the screw holding force of the parallel plate surface The screw holding force of the veneer artificial board parallel plate surface shall be tested in accordance with Article 5.9 of GB/T4897. 6.3.8 Test method for surface bonding strength
6.3.8.1 Principle
The surface bonding strength is the ratio of the tensile force to the bonding area when the bonding between the surface layer of the substrate and the veneer material is broken under the action of the tensile force perpendicular to the plate surface.
6.3.8.2 Instruments and tools
a. Square mechanical test machine, accuracy of 5 N, special chuck, see Figure 6,
Stopwatch:
Special milling cutter.
.Schematic diagram of special clamp
6.3.8.3 The test piece is prepared according to the provisions of 6.3.1. 6.3.8.4 Test steps
6.3.8.4.1 Sand the test surface of the test piece with sandpaper and remove the dust on the surface. b. Schematic diagram of test state
6.3.8.4.2 Mill a groove with an inner diameter of 35.7±1mm in the center of the test surface of the test piece with a milling cutter. The groove width is about 3mm and the groove depth reaches the surface of the substrate.
6.3.8.4.3 The test piece is treated to a constant mass under the conditions of relative humidity of (65±5)% and temperature of 20±2℃. 6.3.8.4.4 Use HY-914 glue or other adhesives with similar properties to bond the fixture to the inner circle of the slot of the test piece. The pressure used during bonding is 0.1~0.2MPa. After the glue is cured, it is tested on a universal mechanical testing machine. 6.3.8.4.5 During the test, the load shall be applied evenly. The test shall be completed within 30 to 90 seconds from the start of loading to failure. The maximum load shall be recorded to an accuracy of 5 N.
6.3.8.4.6 If more than 20% of the failure area of the specimen is located at the adhesive layer between the clamp and the specimen surface, and the measured value is less than the index value, the data shall be invalid. Another specimen shall be taken from the same specimen for re-test. 6.3.8.5 Calculation and expression of results
6. 3.8.5-1 The surface bonding strength of a single specimen shall be calculated according to formula (1) to an accuracy of 0.01 MPa. BP
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