Some standard content:
Light Industry Standard of the People's Republic of China
Wooden Suitcases
Subject Content and Scope of Application
This standard specifies the classification size, technical requirements, test methods and inspection rules for wooden suitcase products. This standard applies to various types of wooden suitcases. Reference Standards
GB/T3324 Wooden Furniture
GB/T 3325
Metal Furniture
GB/T 4893.1~4893.8
Determination of Furniture Surface Paint Film
GB/T10357.5 Mechanical Properties Test of Furniture
Wooden Furniture Finishing
SG/T 279
3 Terminology
3.1 Wooden Suitcases
Strength and Durability of Cabinets
Suits with wood or wood materials as the main base material. 3.2 Parts and components of this suitcase and other terms
For parts and components of wooden suitcases and other terms, please refer to Appendix B (reference). 4 Product classification and main dimensions
QB/T 3660--1999
4.1 Product classification
Products are classified according to their functions, opening methods, surface decoration and structural forms. The specific classifications and codes are shown in Table 1. Table 1
Classification method
Classification by function
Classification by opening method
Classification by exterior decoration
Classification by structural form
4.2 Product marking example
Storage
Travel
Flat-bed box
Frame board box
Storage covered painted frame board box with a length, width and height of 900mm×510mm×450mm respectively: Approved by the Ministry of Light Industry of the People's Republic of China on October 23, 1989
Implementation on May 1, 1990
QB/T 3660---1999
Wooden suitcaseCGTK900X510×450QB/T3660--19994.3 Main dimensions
The main dimensions of the product are shown in Figure 1 and Table 2. Products with special specifications can refer to them. B
Storage type
Travel type
Product classification
950-1000
850950
750~850
650～750
650~750
550650
450~~550
550~600
480~~550
450~500
40 0~450
400~450
350~~400
300~350
500～600
400~500
350440
250~350
200~300
150~200
100～150
Products are divided into three levels: general, medium and high according to material, processing technology and surface decoration. Technical requirements
6.1 Dimension tolerance
The dimensional tolerance of product length, width and height is 10mm (the limit deviation is ±5mm), and the dimensional tolerance of product box cover height is 6mm (the limit deviation is ±3mm).
6.2 Shape and position tolerance
The shape and position tolerance of the product are specified in Table 3. Table 3
Warp Aa
Flatness
Verticality
Panel (diagonal length ≥ 700)
Panel (diagonal length < 700)
Panel, front of box and two baffles
Frame (diagonal length ≥ 700)
Panel, baffle (diagonal length ≥ 700)Frame, panel, baffle (diagonal length < 700)Box door
Parallelism Ad
Straightness e
6.3 Material requirements
6.3.1 Tree species requirements
6. 3. 1. 1
Box door and frame
QB/T 3660—1999
Continued Table 3
Box cover and box body (front and sides)
Decorative strips, edges (length ≥ 700)
Decorative strips, edges (length < 700)
According to different product grades, the tree species requirements are shown in Table 4. Table 4
Box board and internal materials
Material for exterior parts
Material for hidden parts
The texture and color of the tree species should be similar. On the same glue assembly frame board, needle
broadleaf wood shall not be mixed. The colors of symmetrical
parts are basically symmetrical
The tree species is not limited, the material properties are basically stable, and the colors of symmetrical parts are basically symmetrical
The tree species and color are not limited||t t||The texture of the tree species is similar, and the same
The tree species of the glued parts and frame panels is single
The texture and color of the symmetrical parts are
The tree species is single, the material properties are stable, the texture is similar, and the texture and color of the symmetrical parts are symmetrical
The texture of the tree species is similar, the material properties are stable, and the color is similar. The material properties are stable, and the tree species and color are not limited
6.3.1.2 The wood with straight texture should be used for wooden decorative strips and lines. 6.3.2 The wood material of product parts and components is allowed to have defects. The wood material of product parts and components is allowed to have defects, except for the diagonal grain, which shall comply with the provisions of Article 3.3.2 of GB/T3324-1982. The diagonal grain of the material used for the joints of solid boards, lining strips and columns shall comply with the provisions of Article 3.3.2.5 of GB/T3324-1982. The diagonal grain of the material used for other parts is not limited.
6.4 Appearance requirements
6.4.1 Appearance requirements for wooden parts (wooden shells) of products6.4.1.1 Surface roughness
The surface roughness of the wooden shell of the product shall comply with the provisions of Table 5. Table 5
Hidden places
6.4.1.2 Solid board glued parts
Surface roughness requirements
Medium and high-level
The glue joints of solid board glued parts shall be tight, the local glue joints on the surface shall not be greater than 0.2mm, and the internal glue joints shall not be greater than 1mm. 6.4.1.3 Single board and plastic veneer
The appearance quality of single board and plastic veneer shall comply with the provisions of Article 3.4.4 of GB/T3324--1982. Adhesive tape is not allowed on the glued interlayer used inside the product.
6.4.1.4 Edge banding, decorative strips and positioning stop strips 1.18
QB/T36601999
When the substrate is a man-made board, its exposed periphery should be edge banded; the edge banding of wood or other materials should be pasted tightly and evenly without debonding, bubbling or damage.
The surface decorative strips and positioning stop strips should be installed firmly, especially without looseness, cracks, broken marks and other defects; the interface should be flat and there should be no wrinkles at the corners; the end faces should be flush.
6.4.1.5 Edges, corners, lines
The chamfers, fillets, round lines and other line types on the surface should be uniform and consistent. 6.4.1.6 Connection parts
6.4.1.6.1 The joints should be tight and even, without defects such as breaks, cracks, hammer marks, and exposed nail caps, nail feet and nuts. The local gap at the joint of the surface shall not exceed 0.2mm, and the local gap inside shall not exceed 1mm. 6.4.1.6.2 The mounting parts shall fit properly and shall not be loose. 6.4.1.6.3 The gap between the box cover and the box body shall not exceed 1.5mm; the gap between the box door and the frame shall not exceed 1.5mm. After the box cover is closed, the lateral swing of the front baffle of the box cover relative to the front baffle of the box body shall not exceed 1.5mm. 6.4.1.7 Carving and branding
The appearance quality of carving and branding shall comply with the provisions of Articles 3.4.6 and 3.4.8 of GB/T3324--1982. 6.4.2 Appearance of hardware accessories
6.4.2.1 The coating of exposed hardware accessories such as box locks shall be bright, smooth and flat, without rust and scratches; there shall be no cracks, delamination, serious indentations, burrs or cutting edges on the surface of stamping parts.
6.4.2.2 Exposed hardware accessories such as box locks should be installed tightly and correctly, without missing parts or missing nails, and the opening and closing accessories should be flexible to use. 6.4.2.3 The exposed hinge shaft is not allowed to be larger than the shaft diameter or smaller than 3/4 of the shaft diameter.6.4.3 Appearance of the coating layer
The appearance of the coating layer shall comply with the provisions of Article 3.2 of SG/T279-1985. The inside of the box should be kept clean and should not have paint, glue or stains. 6.4.4 Requirements for the coating layer
6.4.4.1 The coating layer should be tightly pasted without wrinkles, degumming, bubbling, dents and damage. 6.4.4.2 The interface of the coating layer on the back of the product should be flat and tight; the coating layers of other external surfaces (except the bottom of the storage wooden suitcase) are not allowed to be spliced.
6.4.4.3 The same type of decorative layer materials should have the same texture and similar color, and the symmetrical patterns should be symmetrical. 6.4.4.4 The allowable defects of the decorative layer materials should meet the requirements of the relevant standards. 6.5 Wood moisture content
The wood moisture content should meet the annual average equilibrium moisture content of the material in the area of use. 6.6 Physical and chemical properties of surface decorative layers and hardware accessories 6.6.1 The physical and chemical properties of the paint film coating layer on the product surface should meet the requirements of Table 6. Table 6
Test items
Liquid resistance of paint film
Adhesion of paint film
Gloss of paint film
Resistance to temperature difference of paint film
Abrasion resistance of paint film
10% sodium carbonate, 24h
30% acetic acid, 24h
2mm parallel cut mark spacing
60°projection angle
Temperature (40±2)℃～(—20±2)(, relative humidity 98%～99%3 cycles
High-grade 4000r, medium-grade 2000r, general-grade 1000rGeneral-grade
Qualified indicators
QB/T3660--1999
6.6.2 The physical and chemical properties of the surface coating layer of the product shall comply with the standards of the coating fabric Requirements. 6.6.3 The physical and chemical properties of the hardware accessories of the product shall comply with the provisions of Articles 3.4.7 and 4.11.2 of GB/T3325-1982. 6.7 Mechanical properties
The structural components of the product shall be firm, and the box cover or door shall be flexible to open and close. After the product has undergone load test, door and cover durability test, door and cover strength test and handle strength test, the test piece shall not have the following damage:
Breakage or cracking of parts and components;
Permanent loosening of some parts that should be firm by hand; b.
Wear or deformation of parts and components that seriously affect the use function; loosening of hardware connectors;
Moving parts are not flexible to open and close.
For the degree index of mechanical properties, please refer to Appendix A (Supplementary ). 7 Test method
7.1 The detection of the main size tolerance and shape and position tolerance of the product shall comply with the provisions of Chapter 4 of GB/T3324--1982; the parallelism detection shall comply with the provisions of Article 4.6 of GB/T3325--1982. Straightness is tested with a 1m steel ruler and a plug gauge of corresponding accuracy. 7.2 The appearance quality and material requirements of the product shall be measured visually and by hand by three persons under good light, and the majority opinion shall prevail for evaluation.
The split seams and joints are tested with plug gauges of corresponding accuracy, and the swing of the box cover is tested with a steel ruler of corresponding accuracy. 7.3 The moisture content of the product wood shall be measured using a wood moisture content tester with an accuracy of not less than 2.5%. Calculate after measuring three points on different solid wood parts of the product The average value is used as the wood moisture content of the product. 7.4 The determination method of the physical and chemical properties of the product paint film coating layer shall comply with the provisions of GB/T4893.1~4893.8. 7.5 The determination of the physical and chemical properties of the product packaging layer shall comply with the provisions of the corresponding standards. 7.6 The determination of the physical and chemical properties of the product hardware accessories shall comply with the provisions of Article 4.11 of GB/T3325--1982. 7.7 The test method of the mechanical properties of the product is shown in Appendix A (Supplement). 8 Inspection rules
8.1 Periodic inspection
During normal production, a sample of the product shall be randomly selected for a periodic inspection every six months according to the physical and chemical performance indicators specified in Article 6.6; a sample of the product shall be randomly selected for a periodic inspection every year according to the mechanical performance indicators specified in Article 6.7. The qualified periodic inspection must be qualified item by item according to the items specified in Articles 6.6 to 6.7. 8.2 Factory Inspection
The product quality inspection department of the production unit shall, on the premise of qualified periodic inspection, conduct self-inspection on all products leaving the factory according to the technical requirements specified in Articles 6.1 to 6.5. Products that meet the requirements of this standard are qualified products; those that do not meet the requirements shall be repaired, and those that are still unqualified after repair are by-products or defective products. 8.3 Delivery Inspection
On the premise of qualified periodic inspection, three samples shall be randomly selected from each delivery batch for inspection according to the technical requirements specified in Articles 6.1 to 6.5. If all of them are qualified, the batch of products is qualified. If necessary, it can also be determined by negotiation between the supply and demand parties. 9 Marking, packaging, transportation, storage
9.1 Marking
Products leaving the factory should have product markings, including: a. Manufacturer name;
Product mark;
Quality qualified mark.
Packaging, transportation, storage
QB/T3660
The packaging, transportation and storage of products shall comply with the provisions of Articles 6.2 to 6.3 of GB/T3324·1982. 151
A1 Principle
QB/T3660-.1999
Appendix A
Method for testing the mechanical properties of wooden suitcases
(Supplement)
The mechanical properties test of wooden suitcases is a test to test the strength or bearing capacity of the relevant parts of wooden suitcase specimens under the conditions of one-time or repeated loads when simulating normal use and habitual misuse. A2 Test equipment requirements
The force-adding accuracy of the force-adding equipment used in the test shall reach ±5%. A3 Test device
A3.1 Loading pad
A cylindrical rigid object with a diameter of 50mm and a rounded edge radius of 12mm (see Figure A1). 50
A3.2 Mass block
During the load test, the metal block used to load the bottom plate and the panel of the wooden suitcase should have a mass accuracy of ±1%. A3.3 Bottom pad
A rectangular wooden block with a length, width and height of 200mm×50mm×20mm, as shown in Figure A2. The boundaries of the shaded part in the figure should be clearly marked.
A4 Test piece
The test piece should be a fully assembled finished product and meet the requirements of the product design drawings. 20
Test pieces made by gluing should be stored in a normal indoor environment for at least 7 consecutive nights before the test can begin. A5 Test conditions
A5.1 Test environment
QB/T3660--1999
The temperature of the test environment should be 15~25 (, and the relative humidity should be 40%~~70%. A5.2 Test site
The ground of the test location should be horizontal and flat, and the surface should be covered with laminated plastic boards or similar materials. A5.3 Loading requirements
The loading should be slow and steady during the strength test and load test to ensure that the additional dynamic load is small enough to be negligible; the added mass block should not be on the test piece The mechanical properties test of wooden suitcases shall be carried out on the same test piece in the following test item sequence until the test piece shows the damage specified in Article 6.7 of this standard.
Load test (the travel-type wooden suitcase shall be subjected to the panel load test first, and then the back baffle load test); a.
Durability test of the door and lid;
Strength test of the door and lid;
Strength test of the handle.
Test method
A7.1 Load test
A7.1.1 Load test of storage wooden suitcase
Place the specimen horizontally, distribute the mass blocks evenly on the bottom plate of the specimen according to the provisions of the attached table, then close and lock the lid of the box, and distribute the mass blocks evenly on the panel of the specimen according to the provisions of the attached table; keep the load for 7 days and nights. If the specimen is padded, the bottom pads of the box should be placed under the four bottom corners of the specimen so that the shadows on the bottom pads of the box coincide with the bottom corners of the specimen (see Figure A3).
A7.1.2 Load test of travel wooden suitcase
A7.1.2.1 The specimen is unloaded and placed horizontally. The box cover is closed and locked. The mass blocks are evenly distributed on the specimen panel according to the provisions of Table A1. The load is maintained for 7 nights. Storage type. Travel type. 9501000. 850~900. 750~800. 650~700. 650~750. 450~~600. The load on the bottom plate is 0 according to the unit volume of the specimen. 25kg/dm3
Calculate and round up (maximum
not more than 60kg)
--1999
QB/T 3660-
Loading mass
Case door durability test level
Open door: 20000;
Flip door: 5000
Case door violent opening test level
Sliding door: 1.5kg.10 times,
Flip door: 200N,10 times
Case handle strength test level
300N.10 times
250N.10 times
250N.10 times
A7.1.2.2 Distribute the mass blocks evenly on the back baffle of the specimen according to the provisions of Table A1, close and lock the box cover, and suspend the specimen in the air through the middle section of the box handle (width 80mm), and keep the load for 24 hours (see Figure A4). Figure A4
A7.2 Durability test of box door and box cover opening and closingA7.2.1 Durability test of box door opening and closing
The durability test of box door shall comply with the provisions of Chapter 7 of GB/T10357.5--1989, and the test level is shown in Table A1. During the test, the specimen is placed horizontally, and the mass blocks are evenly distributed on the bottom plate and panel of the specimen according to the provisions of Table A1. This test can be carried out in conjunction with A7.1.1.
A7.2.2 Durability test of box cover opening and closing
The specimen is placed horizontally, and the mass blocks are evenly distributed on the bottom plate of the specimen according to the provisions of Table A1. The box cover is opened and closed 5000 times. The opening and closing angle is 85°; if the maximum opening angle of the box cover is less than 90°, the box cover opening and closing angle should be 5° less than the maximum opening angle. A7.3 Strength test of box door and box cover
A7.3.1 Test for violent opening of box door
QB/T3660-..1999
The violent opening test of box door (sliding door or flap door) shall comply with the provisions before 7 in GB/T10357.5--1989. The test level is shown in Table A1. During the test, the specimen is placed horizontally, and the mass blocks are evenly distributed on the bottom plate and panel of the specimen according to the provisions of Table A1. This test can be carried out in conjunction with A7.1.1.
A7.3.2 Box lid slam test
The specimen is placed horizontally, and the mass is evenly distributed on the bottom plate of the specimen according to the provisions of Table A!. The box is opened to the maximum opening angle by falling, and then it falls to the closed position, and it is repeated 10 times. A7.4 Box handle strength test
A7.4.1 Storage wooden suitcase box handle strength test The specimen is unloaded, the box lid is closed and locked, and the specimen is suspended in the air by the middle section of the box handles on both sides (width 80mm). The force specified in Table A1 is applied vertically on the specimen panel by loading the entire end as close to the box handle as possible 10 times (see Figure A5). Figure A5
A7.4.2 Strength test of travel-type wooden suitcase handles The specimen is unloaded, the lid is closed and locked, the specimen is fixed, and the force specified in Table A1 is applied 10 times in the middle section of the handle (width 80mm) along the direction perpendicular to the baffle where the handle is installed (see Figure A6). Figure A6
A8 Evaluation of test results
Before the test begins, the defects of the specimen shall be carefully checked according to the provisions of Article 6 of this standard; marks shall be drawn on the defective parts of the specimen and records shall be made (mainly used to distinguish the defects of the specimen after the test). 1999
After the test, recheck the defects of the test piece and evaluate the test results according to the provisions of Article 6.7 of this standard. Appendix B
Terms and terms of wooden suitcases
(reference)
Terms and terms
Flat-plate suitcase
Consumable board suitcase
Decorated wooden suitcase
Lid-type wooden suitcase
Menwu wooden suitcase
Positioning strip
Decorative strip
Additional instructions:
Wooden suitcases with flat panels outside
Wooden suitcases with frame groove paneling structure around the box body||tt| |The outer surface of a wooden suitcase is covered with soft or hard decorative fabrics such as artificial leather, leather, cloth, etc. A wooden suitcase with a lid as the opening and closing part
A wooden suitcase with a door as the opening and closing part
Products without coating or decoration
Parts installed on the top of the wooden suitcase and opened and closed along the horizontal axis Parts installed on the front of the wooden suitcase that can be opened and closed
Storage parts below the lid of the wooden suitcase
Main plate-shaped parts that constitute the product, including panels, bottom plates and baffles Box boards installed on the top of the wooden suitcase
Box boards installed on the bottom of the wooden suitcasebzxZ.net
Box boards installed vertically around the wooden suitcase. The front and back are vertical baffles, and the left and right sides are horizontal baffles.|tt||Vertical parts used to connect baffles
Box boards with slotted board structure
Open parts constituting the frame
Open parts constituting the frame
Parts installed under the panel or bottom plate, supporting and reinforcing parts installed on the box body to prevent the box cover from swinging Strip parts used for decoration inside and outside wooden suitcases Strip signs installed under the bottom of wooden suitcases to support the box body and protect the bottom of the box. This standard was proposed by the Ministry of Light Industry of the People's Republic of China. This standard was issued by the National Standardization Quality Inspection Center. This standard was drafted by the Zhangmu Box Factory in Ji'an City, Jiangxi Province. The main drafter of this standard is Zhou Maolin
Common names in various places
Whole-surface box, whole-board box
Frame box, frame-type box
White bad, white skin
Wallboard, side panel
Box corner, box column7 of the provisions of the test specimens and evaluate the test results, Appendix B
Related terms for wooden suitcases
(reference)
Terms
Flat-plate suitcase
Consumable board suitcase
Decorated wooden suitcase
Lid-type wooden suitcase
Menwu wooden suitcase
Positioning strip
Decorative strip
Additional instructions:
The exterior of the wooden suitcase is made of flat panels
The wooden suitcase with a frame groove panel structure around the box body
The exterior surface is made of artificial leather, leather Wooden trunks covered with soft or hard decorative fabrics such as leather and cloth. Wooden trunks with lids as opening and closing parts
Wooden trunks with doors as opening and closing parts
Products without coating or decoration
Parts installed on the top of the wooden trunk and opened and closed along the horizontal axis. Parts installed on the front of the wooden trunk that can be opened and closed
Storage parts below the lid of the wooden trunk
Main plate-shaped parts that constitute the product, including panels, bottom plates and baffles. Box boards installed on the top of the wooden trunk
Box boards installed on the bottom of the wooden trunk
Box boards installed vertically around the wooden trunk. The front and back are vertical baffles, and the left and right sides are horizontal baffles.|tt||Vertical parts used to connect baffles
Box boards with slotted board structure
Open parts constituting the frame
Open parts constituting the frame
Parts installed under the panel or bottom plate, supporting and reinforcing parts installed on the box body to prevent the box cover from swinging Strip parts used for decoration inside and outside wooden suitcases Strip signs installed under the bottom of wooden suitcases to support the box body and protect the bottom of the box. This standard was proposed by the Ministry of Light Industry of the People's Republic of China. This standard was issued by the National Standardization Quality Inspection Center. This standard was drafted by the Zhangmu Box Factory in Ji'an City, Jiangxi Province. The main drafter of this standard is Zhou Maolin
Common names in various places
Whole-surface box, whole-board box
Frame box, frame-type box
White bad, white skin
Wallboard, side panel
Box corner, box column7 of the provisions of the test specimens and evaluate the test results, Appendix B
Related terms for wooden suitcases
(reference)
Terms
Flat-plate suitcase
Consumable board suitcase
Decorated wooden suitcase
Lid-type wooden suitcase
Menwu wooden suitcase
Positioning strip
Decorative strip
Additional instructions:
The exterior of the wooden suitcase is made of flat panels
The wooden suitcase with a frame groove panel structure around the box body
The exterior surface is made of artificial leather, leather Wooden trunks covered with soft or hard decorative fabrics such as leather and cloth. Wooden trunks with lids as opening and closing parts
Wooden trunks with doors as opening and closing parts
Products without coating or decoration
Parts installed on the top of the wooden trunk and opened and closed along the horizontal axis. Parts installed on the front of the wooden trunk that can be opened and closed
Storage parts below the lid of the wooden trunk
Main plate-shaped parts that constitute the product, including panels, bottom plates and baffles. Box boards installed on the top of the wooden trunk
Box boards installed on the bottom of the wooden trunk
Box boards installed vertically around the wooden trunk. The front and back are vertical baffles, and the left and right sides are horizontal baffles.|tt||Vertical parts used to connect baffles
Box boards with slotted board structure
Open parts constituting the frame
Open parts constituting the frame
Parts installed under the panel or bottom plate, supporting and reinforcing parts installed on the box body to prevent the box cover from swinging Strip parts used for decoration inside and outside wooden suitcases Strip signs installed under the bottom of wooden suitcases to support the box body and protect the bottom of the box. This standard was proposed by the Ministry of Light Industry of the People's Republic of China. This standard was issued by the National Standardization Quality Inspection Center. This standard was drafted by the Zhangmu Box Factory in Ji'an City, Jiangxi Province. The main drafter of this standard is Zhou Maolin
Common names in various places
Whole-surface box, whole-board box
Frame box, frame-type box
White bad, white skin
Wallboard, side panel
Box corner, box column
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