This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging and storage of elastic ring couplings. This standard is applicable to couplings that connect two coaxial transmission shafts and have certain relative offset compensation and vibration damping performance. GB/T 2496-1996 Elastic Ring Coupling GB/T2496-1996 Standard download decompression password: www.bzxz.net

GB/T2495—1996
This standard is prepared in accordance with the requirements of GB/T1.1-1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presenting Standards Part 1: Basic Regulations for Standardization" and GB1.7-88 "Guidelines for Standardization Work Product Packaging Standard Preparation Regulations". When revising GB2495-84, this standard changes the content of product marking in GB2495-84 to the content of transportation delivery and receipt marking and packaging storage and transportation graphic marking; adds packaging technical requirements, packaging transportation and storage requirements, test methods and inspection rules.
This standard will replace GB2495-84 from the date of implementation. Appendix A of this standard is a reminder appendix. This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Abrasives and Grinding Tools. This standard is drafted by Sisha Co., Ltd. The main drafters of this standard are: Dong Qiancheng, Luo Shucai, Wang Boxun. 311
1 Scope
National Standard of the People's Republic of China
Ordinary Abrasives
Packing for bonded abrasive productsGB/T2495-1996
Replaces GB2495-84
This standard specifies the technical requirements for packaging of ordinary abrasive products, transportation and storage of packages, test methods and inspection rules. This standard applies to domestic packaging of ordinary abrasives. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191-90 Pictorial signs for packaging, storage and transportation
GB325--84 Yellow board
GB2828--87 Count sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)GB/T4857.3--92 Static load stacking test method for packaging and transport packagesGB/T4857.5--92 Drop test method for packaging and transport packagesGB/T4857.18--92 Quantitative data for compiling performance test outlines for packaging and transport packagesGB4892--85 Dimension series for rigid rectangular transport packagesGB6388-86 Shipping and receiving marks
GB 6543-86
Corrugated paper boxes
GB 6544-86
Corrugated paperboard
GB 7284--87
GB 8166—87
GB 9174--92
GB12023-—89
GB 12464—90
3 Technical requirements
3.1 General requirements
Frame wooden box
Cushioning packaging design method
General technical conditions for general cargo transportation packaging Plastic strapping
Ordinary wooden box
3.1.1 The packaging of products shall meet the requirements of science, economy, firmness, beauty and marketability. 3.1.2 The packaging design shall be carried out according to the characteristics of the product, the circulation environment conditions and the requirements of customers, so as to ensure the packaging is compact, the protection is reasonable, and it is safe and reliable. 3.1.3 The product shall be inspected and qualified before internal and external packaging can be carried out. 3.1.4 The external dimensions and quality of the package shall comply with the relevant regulations on over-limit and overweight in domestic transportation. The dimensions of the rigid rectangular transport package shall comply with the provisions of GB4892. For the internal dimensions of the packaging box, see Appendix A (the appendix of the reminder). 3.2 Material requirements
3.2.1 Ordinary wooden boxes for outer packaging shall comply with the provisions of GB12464; frame wooden boxes shall comply with the provisions of GB7284. Approved by the State Administration of Technical Supervision on July 5, 1996312
Implementation on February 1, 1997
GB/T 2495--1996
3.2.2 Corrugated paper boxes for outer packaging shall comply with the provisions of GB6543, and corrugated paperboard shall comply with the provisions of GB6544. 3.2.3 Other materials for outer packaging shall comply with Chapter 4 of GB9174-92 or relevant standards. 3.2.4 Commonly used inner packaging materials are:
Kraft paper requires more than 60g/m2;
~-Yellow board paper is in accordance with the provisions of 530~860g/m2 No. 1 paper in GB325, and the thickness of plastic film is not less than 0.08mm. 3.2.5 Buffering materials are required to be not easy to be infected by insects, mold and fatigue deformation. Commonly used buffering materials are: corrugated cardboard, corrugated paper, foam plastic padding, etc.
3.2.6 The design method of buffering packaging can adopt the method specified in GB8166. 3.3 Packaging requirements
3.3.1 The packaging container is required to be dry and tidy. 3.3.2 The package should be accompanied by a product quality inspection certificate. 3.3.3 The product should be consistent with the mark, and there should be no looseness or collision in the packaging container. 3.3.4 The gross weight of wooden box packaging is generally not more than 50kg, and the gross weight of corrugated box packaging is generally not more than 35kg. 3.3.5
For general packaging, see Table 1.
Table 1 General packaging for common abrasive tools
Product name
>20～95
≥100～175
Outer diameter D of grinding wheel and grinding head
>175~～400
>400～600
600～750
>750 or packaging
Exceeding the provisions of 3.3.4
Resin sheet grinding wheel
Cup, bowl, plate
Cylinder-shaped grinding wheel
Sheet-shaped grinding wheel| |tt||Inner packaging
Plastic bag
Kraft paper
Paper pallet
Kraft paper
Special cushioning pad
Special cushioning pad
Corner cushion
Plastic packaging
Multiple piece packaging
Multiple piece rub packing
Single piece packaging
Single piece packaging
Multiple piece rub packing
Multiple packages
3.3.6 The packaging with special requirements shall be agreed upon by the supply and demand parties. 3.4 Sealing and bundling requirements
Double-wall carton
Equivalent packaging container
Or equivalent packaging container
Double corrugated carton
Equivalent packaging container
Double corrugated carton
Outer packaging
Multiple box packaging
Multiple package packaging
Multiple package packaging
Multiple pieces, each piece or piece is cushioned with double corrugated cardboard and
Inner wall of box
Full cushioning method
Piece packaging
5 to 10 pieces, each piece is cushioned with corrugated paper Thickened corrugated cardboard or foam plastic cushioning Multi-bag packaging
Multiple box packaging
Regular arrangement, each layer is cushioned with corrugated paper 313
GB/T 2495-1996
3.4.1 The sealing of ordinary wooden boxes shall comply with the provisions of 5.3 of GB12464-90. 3.4.2 Carton packages shall be tied with plastic strapping tape. The packaging form shall be determined according to the circulation of goods, but the minimum number of strapping tapes shall not be less than 2. The quality of strapping tapes shall comply with the requirements of GB12023. Under normal storage and transportation conditions, the strapping tapes shall not be loose. 3.4.3 For the bundling of packages made of other materials, the requirements of Chapter 4 of GB917492 or relevant standards shall be followed. 4 Marking
4.1 The shipping and receiving marks shall comply with the requirements of GB6388. Contents of shipping and receiving marks:
a) Product name or code, production license number, implementation standard number; b) Product specifications;
c) Registered trademark;
d) Product quantity:
e) Box size (length × width × height);
f) Manufacturer name and address,
g) Weight (net weight or gross weight);
h) Destination station and receiving unit;
i) Departure station and shipping unit.
4.2 The graphic signs for packaging, storage and transportation shall comply with the provisions of GB191. The names of the signs are: Handle with care, Afraid of moisture, Lift from here, Stacking layer limit. 5. Transport and storage of packages
During the transportation process, packages should be loaded and unloaded in a reasonable manner according to the storage and transportation icons on the packages to prevent cargo damage accidents. 5.1
5.2 When transported by car, the rear should be properly fixed and covered with a cloth or rope net to prevent the goods from sliding. 5.3 Packages should be stored in a ventilated and dry indoor warehouse. 5.4 Packages must be covered with a cloth when stored in the cargo yard or dock. 6. Package tests
6.1 Static load stacking test
6.1.1 The test method shall be carried out in accordance with GB/T4857.3. 6.1.2 The load applied to the package (including the loading plate) is calculated as follows: F = KH_h
Wherein: F load, kg
H---stacking height, mm (generally not more than 2500mm according to storage and transportation conditions); h-height of the package, mm
m--mass of the test package, kg,
K-deterioration coefficient of the package during circulation (see Table 2). Table 2 Relationship between circulation period and deterioration coefficient
Circulation period
Deterioration coefficient
1 month
1-3 months
3-6 months
More than 6 months
6.1.3 After 24h test, the load is cancelled.
6.2 Drop test
6.2.1 The test method shall be carried out in accordance with GB/T4857.5. GB/T 2495--1996
6.2.2 The drop height shall comply with the provisions of GB/T4857.18. 6.2.3 The tested package shall be dropped 7 times in succession, with the drop positions being a corner and the 3 faces and 3 edges that make up the corner. 7 Inspection rules
7.1 Finalization test
7.1.1 Packages with any of the following conditions shall be tested in accordance with the requirements of Chapter 6 of this standard: a) When a new design is made:
b) When there are major changes in packaging materials, design, or process. The number of test pieces shall be no less than 3.
7.1.2 After the tests specified in Chapter 6, the packaging box shall be qualified if there is no obvious damage to the packaging box and the product inside is not damaged. Packages that fail to meet any of the above requirements shall be unqualified. 7.2 Inspection of packaging materials
Ordinary wooden boxes shall be inspected according to 7.2 and 7.3 of GB12464-90; frame wooden boxes shall be inspected according to 8.2 of GB7284-87; corrugated paper boxes shall be inspected according to Chapter 7 of GB6543-86; corrugated paperboard shall be inspected according to Chapter 4 of GB6544--86. The above materials shall be inspected according to the standard according to the quantity of each purchase. 7.3 Inspection of packaging
Sampling inspection shall be carried out on the packaging items put into storage according to GB2828. The size of the batch shall be determined according to the specific specifications of each package. The general batch size is recommended to be 100 pieces, and the minimum shall not be less than 50 pieces. - Special inspection level SI;
One normal inspection sampling plan;
Defect classification and qualified quality level AQL value are shown in Table 3. Table 3 Defect classification and acceptable quality level AQL value Defect classification
Major defect
Major defect
Defective item
Inner packaging cracks resulting in missing internal abrasives and missing mixed buffer materials
Outer packaging cracks
Not meeting the packaging requirements of 3.1 and 3.3
Not meeting the sealing and bundling requirements of 3.4
Inner and outer packaging markings are incorrect and unclear
GB/T 2495-1996
Appendix A
(Suggestive appendix)
Inner dimensions of ordinary abrasive packaging boxes
The inner dimensions of ordinary abrasive packaging boxes are given in Table A1, which can be used as a reference for each enterprise. Table A1 Inner dimensions of ordinary abrasive tool packaging box
Outer diameter of abrasive tool
≤90Grinding wheel and grinding head
Various oilstones and sand tiles
100,150
110,175
180,200
250,125
Box dimensions (length×width×height)
315X315X175215
320X300X170
315×315×175~215
365×365×175--215
415×415×175~215
340 X 260 ×270
338×338×158-185
390X390X165185
440×440X165~-185
480 0×120~175
700X 700X 90
810×810×90~150
860×860×100~160
960×960×100-160
1200×1200×120
1350X1350X120160
1 700×1 700×140~180
Box type
Wooden box or carton
Packing form125
Box size (length × width × height)
315X315X175215
320X300X170
315×315×175~215
365×365×175--215
415×415×175~215
340 X 260 ×270
338×338×158-185
390X390X165185
440×440X165~-185
480X 480×155~188
540×540X188~-210
640×640×120~175
700X 700X 90
810×810×90~150
860×860×100~160
960×960×100-160
1200×1200×120
1350X1350X120160
1 700×1 700×140~180
Box Type
Wooden Box or Carton
Packing Form125
Box size (length × width × height)
315X315X175215
320X300X170
315×315×175~215
365×365×175--215
415×415×175~215
340 X 260 ×270
338×338×158-185
390X390X165185
440×440X165~-185
480X 480×155~188bzxZ.net
540×540X188~-210
640×640×120~175
700X 700X 90
810×810×90~150
860×860×100~160
960×960×100-160
1200×1200×120
1350X1350X120160
1 700×1 700×140~180
Box Type
Wooden Box or Carton
Packing Form
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