Some standard content:
JCS55.160
National Standard of the People's Republic of China
GB/T18926—2002
Packaging containers
Wood components
Packaging containers-wood mcmhcrs2002-12-20Promulgated
Shandong People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
Implementation on 2003-05-01
GD/T18926—2002
This standard is a general and temporary standard for wood components in transport packaging containers and pallets. In order to ensure the quality of transport packaging containers and pallets, the basic technical requirements of wooden components are proposed:
The international appendix A of this standard is an informational appendix:
This standard was proposed by China Packaging Corporation
This standard was drafted by the National Packaging Standardization Technical Committee: The drafting units of this standard include the Chinese Academy of Materials Science, the National Product Packaging Testing Center, Fujian Jianou Timber Factory, Ming Cigarette Machinery Analysis Co., Ltd., and Shanghai Heavy Machinery Analysis Co., Ltd. The main leaders of this standard are Li Danglong, Tu Libing, Zeng Qiang, Cheng Guangzong, Zhou Bulei and Fan La
Wood components of packaging containers
This standard specifies the technical requirements for wood components used for transport packaging containers and pallets. This standard is applicable to wood components of transport containers and pallets. 2 Normative references
GB/T18926—2002
The underlined clauses are the clauses that are not included in this standard because they are not specified by reference. For any dated referenced documents, all subsequent amendments (excluding errors or revised versions) are not applicable to this standard. However, the parties who have reached an agreement on the standard may use the latest versions of these documents. For any undated referenced documents, their latest versions are applicable to this standard. 1-1991 Determination of moisture content of water-based materials GB/T4122.4-2002 Packaging terms Water content GB/4823·1995 Defects of this standard
(B/T14074-1993 (all parts) Wood adhesive and quick-resistance test method LY/T1350-1999 Physical and mechanical properties test method of finger-joined materials 3 Terms and definitions
GB/T4122.4 and the following terms and definitions apply to this standard. 3.1 This standard refers to wood members
The most basic unit of wood in the transport packaging container pallet. 4 Classification of components
1st grade: structural components (high stress components)
2nd grade: structural components (medium stress components):
3rd grade: non-structural components (low stress components). 5-General requirements
5. 1 Wood grouping
The wood species used for the components shall be grouped according to Table 1. The wood species in the same group can be combined or used interchangeably. When there is no wood species group requirement for a specified component, it can be used arbitrarily. 1
GB/T18926-20p2
Table 1 Wood grouping
The wood group base
is made of relatively soft wood, and has medium grip and medium impact strength, such as magnetic wood, cloud inspection, clean fir, Taiwan inspection, imperial request, stock, moderate impact strength, no cracking,
wood, horse chestnut, fishing, etc.
! The main wood is deciduous, and the folk dress, etc.
is made of relatively hard wood. The wood has strong grip and good cracking strength. The wood group method: The material has medium strength, strong The material has a strong impact force, and the material is composed of a lot of people. It has a strong impact force to prevent the original material from cracking at the nailing point. For example, 1.5.2
Table West Processing
Blue fruit phase, wood mountain tea, etc.
White world fast. The base and cabinet of wooden containers such as books, conveyors, sample tables, cycads, water fertilization nets, etc. are allowed to use standard wood. At least one side of the inner part should be smooth to make a mark. 6 Technical requirements
6.1 Size
The object shall be treated with ten media and machined. The initial rust-proofing of the base car size requirements shall meet the requirements of clothing 2: Carbon wood is used for actual sales.
Table 2 Basic size requirements for components
Benzene size"
25 -100
a laic
6.2 Moisture content
The average moisture content of the parts during manufacturing is 15%--25%. 6.3 Defect control
The following requirements shall be met for sample selection and processing of the parts, 6.3.1 Separation
Number,
E3--200
The median is mm
The components shall not have any corrosion phenomenon, but stains and discoloration are allowed. The components with stains and discoloration are not allowed to be used for marking the outside of the device
Two types of corrosion can be inspected by shaking: The scratch inspection is to use a knife to cut open some of the fibers and observe the changes in the skin. If the material is better than the same tree species, it can be judged as full, and the crack is severe without cutting: it can also be judged from the color. The rotten band is divided into normal single alarm package, discoloration into mother color and mixed low, sharp state small color. 6.3.2 Crack sensitivity
Crack grade is divided into longitudinal crack and ring crack: Generally, the longitudinal size of the wood structure should be less than the required size of the member, and the requirements of Table 3 are as follows.
Table 3 Allowable requirements for member defects
Equal line
Less than or equal to 10%
Less than or equal to T105
Less than 15%
GH/T1B926—2002
Color change is divided into overbending and distortion. The deformation is divided into recovery, learning and measurement, and the deformation should be controlled within the requirements of Table 4. Allowable deformation of wood components
2 COC -3 000
300C --4 000
6. 3. 4 Section
109-400
Unit: meter
Component composition limit: dead book, live knot, knot hole and book sample. Width seat meets the requirements of Table 5. Within any length range equal to the average length of the component, the sum of the penetrations of each section shall not exceed the allowable width of a single section of the component. The allowable width of a single section of a shorter component shall be less than or equal to 75% of the structural length. The allowable width shall be less than or equal to 1/8 of the average length, and shall be less than or equal to 40%. 3.5 No obvious damage is allowed on the component: the number of structural components and 2-component components at any length shall not exceed 4. 5. In any length of 10 non-consolidated parts, the number of insects is limited to no more than 10. 6.3.6 Twill
Due to the twisting and regular growth of the slanted logs, slanted grain can be formed. The maximum allowable slant effect of the structural crown should meet the requirements of Table 6. The direction of the light and strong part can be ignored. When a component has both grain and blast effect, the comprehensive risk of aging should be considered, and the comprehensive slant of the plate should be calculated. The inclination of the combination is the half-square value of the sum of the squares of the inclinations in Table 6. The material should be sufficient.
6.4 The maximum length of the board component
is less than or equal to %
or equal to 12.4 years
Connection and row connection: The side, end, top cover and bottom board components of the box with a basin can be connected in reverse by the following method to make the use of amine in accordance with the provisions of GB/14074 (all parts). a) T-joining and jointing;
pressing and gluing;
splicing and gluing.
GB/T18926—2002
7 Inspection rules
7.1 Inspection of component size
The inspection of component size shall comply with the relevant requirements of 5.1. 7.2 Inspection of component moisture content
The inspection of component moisture content shall comply with the relevant requirements of 6.2 and be carried out in accordance with the relevant requirements of GB/T131. 7.3 Inspection of component defect control
The inspection of component defect control shall comply with the relevant requirements of 6.3 and be carried out in accordance with the relevant requirements of GB3/T823. 7.4 Inspection of plate components
The number of cold-rolled samples for each component shall be 10. The sample size is length (multiplied by the direction perpendicular to the small grain) is the width of the needle, and the width (parallel to the direction of the grain) is 13. The sample has no obvious longitudinal cracks, circular cracks, and fat pockets. The distance between the joint and the bottom of the board is less than or equal to F60mm.
The inspection method is carried out according to the provisions of LY10, and the straight oxygen barrier product is tested and accepted. The fracture position related to the connection is recorded, and partial or complete cracking at the connection is considered as the peak effect. Twelve samples out of 15 samples do not fail at the connection, which is regarded as the batch standard. 8 marking and storage
8.3 Grading mark
The annual batch component degree is the grading mark:wwW.bzxz.Net
8.2. Storage
Combined wooden components should not be directly stored. Appendix A
(Informative Appendix)
Examples of the application of various grades of wooden components in transport packaging containers and pallets, etc. GB/T19926-2002
A1 International circulation and repeated unloading of transport packaging containers and pallets, etc., and other requirements for wooden components. Please refer to Table A, 1 and select Table A. 1
Name
Sumoto box
Center connecting pin
Steel structure bundling
Fiber standard pin
Ben frame tile crooked carton
Cabinet frame technical box
Cabinet frame flower squeeze box
Definitely can be connected to create a vase museum
Through the block and when the block inside the device
1 structure
Box file, positive $
Aoki frame structure
Stress place
Final component grade requirements
2 grade law dead
Project benefit, side, room, sliding technology
Top cover, waste mail, agent surface
Branch technology, fine wood, ban, rock, hanging, material translation support bracket, weaving writing push component
Pillow, project night surface, focus surface
Table board, wooden bar standard, wooden folding bar society
3 and other non-structural parts
Weaving height, cushion technology
Box, auxiliary along the wood,
A.2 The grade requirements of wooden components for domestic direct transport packaging and pallet can be referred to: Table A.2 Sample Table 1. 2
Benefit name
Luoshu rice
Wood eggplant
Please approve the station
Guard board station
Wood push tile Bin Yao box
Get the frame wood section
Frame lattice box
Directional structure dragon board frost
The internal dangerous blocks and
1 and other structural parts
Small place
Wood tensile grade important conditions
2 The knot is forbidden to be pulled. Can't come, pre-difference, point surface, side surface, rhyme material, music strip, tile column frame, water-resistant technology. According to the technology, the same vertical and horizontal drag is uniform, all the real frame components are also reversed, the table board, whether the tea, wood analysis strip, 3 fold straight standing components, and, need, side, bottom, maintenance machine, material control, pin plate, rack, female, lemon, throwing bone, dyeing bridge, axis, Qingda, benefit, measuring surface, hemp, mouth surface, work force
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