The technical requirements of repairs for steel general purpose containers
Some standard content:
ICs 55.180.10
National Standard of the People's Republic of China
GB/T 12418—2001
Technical requirements of repairs forsteel general purpose containers
The technical requirements of repairs forsteel general purpose containersIssued on 2001-05-11
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2002-01-01
GB/T 12418--2001
This standard is revised based on the practice of container management in my country, with reference to the "Technical Requirements for Inspection and Repair of Steel Containers" of the International Container Lessors Association (IICI), and taking into account future development and economic factors. The main contents of this standard revision are as follows:
a) It is clarified that the technical requirements listed in this standard are applicable to international standard steel general purpose containers, and can also be used as a reference for similar containers that are not of international standards;
b) According to the design, structure, price and other characteristics and development trends of this type of container, especially from the perspective of repair cost and economic analysis, the provisions on the extent of damage that is necessary to arrange repair are adjusted to make the monthly cost of repair more reasonable;
d) In view of the fact that the top structure of steel cargo containers has been replaced by corrugated top plates instead of flat top plates, the relevant contents of flat plates and top beams are no longer included;
d) For those containers that have been determined to need repair, the repair method adopted shall still be consistent with the contents listed in the current internationally accepted TICT. current version;
c) The relevant codes listed in the various appendices of this standard have been checked and unified in accordance with IS () 9897: 1997. Appendix A, Appendix B, Appendix C and Appendix D listed in this standard All of them are appendices for instructions. This standard is proposed by the Ministry of Transport of the People's Republic of China and is under the jurisdiction of the National Technical Committee for Container Standardization. The drafting units of this standard are: Water Transport Research Institute of the Ministry of Transport, COSCO Container Lines Co., Ltd., and the Scientific Research Institute of the Ministry of Transport. The main drafters of this standard are Jiang Minde, Lu Fanyi, Zhang Jingxuan, and Guan Shenqian. This standard was released in the first autumn of July 1990.
1 Scope
National Standard of the People's Republic of China
The technical requirements of repairs forsteel general purpose containers
The technical requirements of repairs forsteel general purpose containersGB/T12418—2001
Replacement GB/T12418-—1990
This standard specifies the technical requirements for the definition, inspection, damage category, repair method, material, container status and code of steel general purpose container repair work.
This standard is applicable to the repair of international standard steel general purpose containers, and can also be used as a reference for non-international standard steel general purpose containers. 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 will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. (I3/T1413—1998 Series 1 Container Classification Dimensions and Rated Mass (idt1SO668:1995) Technical Conditions for Container Corner Fittings (eqvISO1161:1981)GB/T 18351995
GB/T 1836 1997
Container code, identification and marking (idrISO6346:1995) G13/T1992--1985
Container terminology (egvIS0830:1981) GB/T 3218—1982
5Technical conditions and test methods for D type general purpose containers GB/T3219—19951Technical conditions and test methods for CC, 1C and ICX type general purpose containers (egvISO1496-1:1984) GB/T5338—19951Technical conditions and test methods for AAA, 1AA, 1A and 1AX type general purpose containers (eqv 1SO 1496-1:1984)
3Definitions
This standard adopts the following definitions.
3.1Maintenance
Related work to maintain the good condition of the container and meet the normal standby requirements. 3.2Repair
Replacement of components, accessories and materials of the container structure, local repair and appearance correction in order to restore the container to the proper use state and extend its service life. Typical repair measures are shown in Appendix A (Suggestive Appendix). 3.3Maintenance and repairA general term for container maintenance and repair work. 3.4Refurbishment
Treatment of the inner and outer surfaces of the container, renewal of coatings and markings, and occasional repair work when necessary. 3.5Inspection
Check the integrity and applicability of the container, and propose a plan for repair or continued use based on this. 3.6 Testing
The assessment of the performance of containers according to the technical conditions and test methods listed in the established standards or specifications. Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on May 11, 2001 and implemented on January 1, 2002
3.7 Inspection and testing A general term for inspection and testing.
3.8 CertificationbZxz.net
GB/T12418—2001
The procedure for container products to be certified to meet the requirements of standards and specifications after inspection and issuance of certificates by professional certification bodies. 3.9 Continuous inspection program ACEP-approved continuous examination program Relevant regulations on the re-inspection of containers that have been inspected and certified and have been in service for a certain period of time. 4. Basic requirements for inspection and repair
4.1 Inspection requirements
4.1.1 Inspection location
Refers to the specific terminal, empty container yard and repair station of the container owner or user. 4.1.2 Inspection cycle
The time interval from the time the container is manufactured to the first inspection shall not exceed five years. The time interval for subsequent inspections shall be 30 months. 4.1.3 Inspectors
refers to professionals who are familiar with the characteristics, structure, classification, manufacturing and repair technology of containers and can correctly judge the potential factors that endanger safe transportation. 4.1.4 Pre-repair inspection content
For the components and parts to be inspected, please refer to Appendix B (Reminder Appendix). 4.1.5 Temporary inspection
When the container is seriously damaged and needs to be overhauled during non-periodic inspections, an unplanned inspection of the main load-bearing components such as the upper side beams, lower side beams, corner columns, and end dyes of the container rest shall be carried out. 4.1.6 Inspection records
For each inspected container, the date of the inspection shall be marked on the CSC license plate of the International Convention for Safe Containers or as close to it as possible. The relevant records of the implementation of the continuous inspection program ACEP should also be marked in accordance with the above principles, and the marking method should comply with the relevant provisions of the International Convention for Safe Containers (CSC). In addition, the record files of the inspection results should be kept and kept until the next inspection date. The codes used in the records are shown in Appendix C (Reminder Appendix). 4.2 Basic requirements for repairs
The container owner shall appoint qualified inspectors to inspect the containers he/she owns and decide whether to continue to use, stop using or send them for repair.
4.2.1 For containers sent for repair, the repair unit and the container repair unit shall promptly prepare the inspection records and relevant technical documents of the container's condition before, during and after the repair.
4.2.2 The container repair unit shall be equipped with the necessary inspection, testing and repair equipment, instruments and tools 4.2.3 Various professionals engaged in container repair shall have the knowledge and operating skills required by this profession and hold relevant certificates. 4.3 Inspection requirements for container repairs
4.3.1 After the container has been repaired, the dimensions of each part shall not exceed the outline formed by the outer surface of the corner fittings. The external dimensions, limit deviations and the difference in the distance between each diagonal corner of the container shall comply with the requirements specified in GB/T1413. 4.3.2 It shall comply with the relevant technical conditions and test methods for containers in GB/T3218, GB/T3219 and GB/T5338. 4.4 Quality requirements for container repair work
4.4.1 The geometrical dimensions and mechanical properties of the steel, wood and metal connectors that need to be replaced during container repair should be consistent with or higher than the original indicators. For the repair materials of the container, see Appendix D (Small Appendix). 4.4.2 The various materials of the accessories used in container repair should be approved by the certification body. 4.4.3 The surface of the repaired part should be treated, the materials of the inner and outer coatings should be compatible, and the color of the outer coating should be coordinated with the surrounding parts as much as possible.
4.4.4 The welds of the repaired parts of the container should be even, flat, accurate in shape and position, with sufficient fusion welding depth and no defects such as sand holes, pores, and undercuts. 2
GB/T 12418—2001
4.4.5 The joints, grooves and connection methods of the replaced bottom plate should be consistent with the original design. 4.4.6 The various marking plates of the box body should be complete, firmly connected, with clear handwriting, and the installation position should meet the requirements. 4.4.7 The special marks and patterns required by the container owner to be shown on the container body 1 shall be correctly reflected. 4.4.8 During and after the repair process, it shall be ensured that there is no adverse effect on the components adjacent to the repaired parts. 4.4.9 The strength of each repaired part of the container shall not be lower than the original design strength of the part. 4.4.10 The repaired container body shall comply with national standards and relevant technical specifications. If necessary, tests for designated items shall also be carried out according to the requirements of the quality supervisor.
5 Regulations and methods for repair
5.1 Corner columns
5.1.1 Regulations for repair
The front corner column and the inner and outer columns of the rear corner shall be repaired regardless of the extent of any of the following damages. a) Holes, cracks, damage to components and welds, and other damage that affects the integrity of the box structure; h) Any bending, dents, and arches that exceed the specified dimensions of the box body; c) The depth of local bending, dents, and arches at any part exceeds 25mm; l) The same corner column has two or more dents or arches exceeding 15mm; e) Any part of the rear corner column has damage that affects the opening and closing of the door, the positioning of parts, and the weatherproof function. 5.1.2 Repair method
5.1.2.1 For general damage, cold operation method is used for correction. If heating is really necessary, it should be limited to the damaged part, and the temperature should not exceed 650C..
5.1.2.2 For small cracks, scratches, holes, and other damages on the corner column, the repair welding method can be used. When the seam is large, it should be repaired after consultation with the box owner.
5.1.2.3 If the above method fails to meet the requirements, the damaged part shall be cut off and a filler plate of appropriate size shall be welded in a butt-joint manner: a) Each corner column shall have at most 2 filler plates, and each filler plate shall not be less than 150mm along its length direction; h) When the distance between the filler plate and the lower upper plane of the top and bottom corner pieces is less than 300mm, it shall be extended to the connection with the corresponding corner piece; ) The minimum distance between the filler plates at the same corner position of the corner column section is 150mm, and the filler plates at different corner positions shall not appear on the same cross section;
l) The position requirements of the filler plate along the length direction of the corner column and in the cross section are shown in Figures 1 and 2. 5.1.2.4 When the corner column is seriously damaged or the above repair methods fail to meet the requirements, the corner column shall be replaced. 5.2 Beams
5.2.1 Repair regulations
The beams of the main frame of the box, including the upper and lower front beams, doors and thresholds, and upper and lower side beams, need to be repaired when any of the following damage occurs:
A) Holes, cracks, damage to components and welds, and other damage that affects the integrity of the box structure; b) Any bending, denting and arching that results in a deviation from the specified dimensions of the box exterior; e) The upper and lower side beams are bent or dented within 250mm of the angle fittings, resulting in a deviation from the welds connecting the angle fittings. d) The upper side beam is bent, arched or sunken with a depth exceeding 30mm; e) The upper end beam and door cap are bent, arched or sunken with a depth exceeding 35mm; f) The water channel is bent, arched or sunken, which affects the opening and closing operation of the box door; g) The threshold, lower end beam and lower side beam are bent, arched or sunken with a depth exceeding 50mmh) The threshold, lower end beam and flange of the lower side beam are damaged; i) Any deformation of the door cap and threshold affects the opening and closing operation of the box door and affects the watertight function. 5.2.2 Repair method||t a) Repair according to 5.1.2.1,
GB/F124182001
b) For holes and cracks, they should be leveled and then welded; c) If the above method does not meet the requirements, the damaged part should be cut off and welded with a filling plate of appropriate size in a butt-welded manner, as shown in Figure 8: d) The minimum length of the filling plate is 150mm; e) The distance between the weld of the filling plate on the upper and lower end beams and the doors and thresholds and the adjacent other welds or the inner edge of the adjacent corner pieces should not be less than 150mm, otherwise The filling plate should be extended to the corresponding weld or angle fitting connection; f) The distance between the two filling plates on each upper and lower side beam, or the distance between any filling plate and the adjacent weld should not be less than 150mm, otherwise they should be combined into a quick filling plate:
name) When the distance between the filling plate on the upper and lower side beams and the inner edge of the adjacent angle fitting is less than 300mm, it should be extended to the connection between the corresponding angle fitting and the beam, as shown in Figure 3 and Figure 4,
h) When any beam element is severely damaged or the above repair methods cannot meet the requirements, the entire beam should be replaced with a new one. AC is a feasible method
D-~ is an unfeasible method
Figure 1 Repair method of corner column section
Filling plate and angle fitting
Distance height 150mm
GB/T 12418—2001
The filler plate cannot extend the corner
At the corner of the section
The distance between the two filler plates
≤150mm
is a feasible method
is an unfeasible method
Figure 2 Repair method of corner column outer plate
Two filler plates appear at the same section
The filler plate of the column cannot be
More than two pieces
The minimum distance is
150mml
GB/T12418—2001
The minimum distance is
The minimum distance is
The minimum height is
Filler plate
150 mm
Filling plate
A~-C is not a feasible method
A～C' is a feasible method
Figure 3 Repair method of upper side beam
The minimum distance is
The minimum distance is
5.3 End wall and wall panel
5. 3. 1 Repair regulations
Filling plate
GB/T 12418—2001
Figure 4 Repair method of lower side beam
Repair is required when the corrugated end wall and side wall panels have one of the following damages: a) holes, cracks and cracks in welds; ) any bending, depression and arching that result in a deviation from the specified external dimensions of the box; c) local bending, depression or arching that causes the depression or protrusion of the plate surface including the crest and trough to exceed 45mm. 7
5.3.2 Repair methods
GB/T12418—2001
e) For general damage, the depression should be flattened by cold working method; b) For cracks or holes within the single wave range, they can be repaired by welding after flattening; c) For larger area damage, the damaged part should be cut off and welded with an external repair plate in the form of overlap or with a filler plate in the form of butt welding; d) For large area serious damage or when the above repair methods cannot meet the requirements, the whole end plate or the whole group of end plates should be replaced. .4 Roof structure
5.4.1 Repair regulations
The arched corrugated roof, the extension plates of the upper end beam and the door cap, and the corner guard plates shall be repaired when any of the following damages occur: a) holes, cracks and cracks in welds; b) any bending, denting and arching resulting in deviation from the specified dimensions of the exterior of the box; c) the deformation of the arch of the corrugated plate exceeds 50mm in any direction; d) the door extension plates and corner guard plates are bent, arched or dented, resulting in a reduction of the net height inside the box by more than 50mm. 5.4.2 Repair method
a) For local deformation of the corrugated roof, use cold working method to level it; b) For holes or cracks in the corrugated roof, weld it after leveling; c) When the damaged part exceeds the range of a single wave and is difficult to level and weld, cut off the damaged part and weld it with an external lap plate or filler plate in overlapping or butt welding;
d) For large-area serious damage or when the above repair methods cannot meet the requirements, replace the entire corrugated roof or the entire group of corrugated roof. 5.5 Bottom structure
5.5.1 Repair regulations
Repairs should be carried out when the bottom crossbeam, fork groove and gooseneck groove beams have the following damage: a) bending, denting and arching result in deviation from the specified dimensions of the box body; b) the web of each beam has deformation such as bending, arching or denting exceeding 70mm; c) the web of each beam is damaged by more than 50mm; d) the web of the same beam has two or more damages: e) the upper and lower flanges of each beam are deformed by more than 70mm; 1) the upper flange of each beam is bent concave into the box, and the arching or concaving deformation exceeds 50mn; g) a gap of more than 10mm appears at the joint surface between the upper flange of each beam and the wooden bottom plate; h) the fork groove and gooseneck groove cover plate is bent, arched or dented by more than 50mm. 5.5.2 Repair method
a) Use the repair method in 5.1.2.1;
b) If the above method does not meet the requirements, the damaged part should be cut off and a filler plate of appropriate size should be welded in a butt-joint manner, as shown in Figure 3. The minimum length of the filler plate is 150mm; the distance between the weld chain of the filler plate and the adjacent plate weld and/or the connection between the lower beam and the bottom bar should not be less than 150mm, otherwise the filler plate size should be extended to the weld and connection, as shown in Figure 5; c) If the upper or lower part of the beam section is severely damaged in its entire length, the damaged part should be cut off along the entire length of the beam, and the beam should be connected by lap welding, and the lap size should not be less than 13mm, as shown in Figure 6; d) If the above method does not meet the requirements, a new beam should be replaced, and the repair method shown in Figure 7 is not allowed; e) The repair method of the fork groove is shown in Figure 8; f) For the repair method of the rolled non-uniform thickness section of the cross beam, the repair should be carried out after consultation with the box owner. 8
GB/T 12418—2001
Figure 5 Repair method of bottom beam
Figure 6 Repair method of bottom beam
Replacement of curtain section
Figure 7 It is not allowed to cut off the entire section to repair the bottom beam. The minimum distance is 150mm
5.6 Wooden bottom board
5. 6. 1 Repair regulations
Reinforcement board
GB/T 12418--2001
Hunting patch board,
Reinforcement board
Side board and top board
Filling report
Reinforcement board
Figure 8 Groove repair method
Wooden bottom board and its connecting parts should be repaired when one of the following damage occurs:a) The wooden bottom board is broken and causes light:
b) The joints of the wooden bottom board and the joints with the relevant beam elements have light leakage c) The fasteners of the wooden bottom board are loose or lost: d) The board surface has a chisel mark with a depth exceeding 15mm or a depth exceeding 5mm and a width exceeding 150mm, e) The wooden bottom board is broken or delaminated;
f) The height difference between adjacent board surfaces exceeds 10mm.
Filling board
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