General rules for selection and using of packaging materials with volatile corrosion inhibitor
Some standard content:
ICS55.020
National Standard of the People's Republic of China
GB/T14188—2008
Replaces GB/T14188—1996
General rules for selection and using of packagingmaterials with volatile corrosion inhibitor2008-04-01Promulgated
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Standardization Administration of the People's Republic of China
Implementation on 2008-10-01
This standard modifies and adopts the US military standard MIL-1-8574E:1997 Application of volatile corrosion inhibitors. The main differences between this standard and the US military standard MIL-1-8574E:1997 are as follows: -——Added the main types of VCI materials; -Added the selection basis,
Except 4. Quality commitment".
This standard replaces GB/T14188.-1996 General Rules for the Selection of VCI Packaging Materials. Compared with GB/T14188-1996, the main changes of this standard are as follows: -Added the main types of VCI materials; Added the selection basis;
Deleted "Quality Inspection"
---Added the adaptability test method;
-Modified the use content of interlayer isolation VCI packaging materials; Added the use method of oil-proof barrier materials; Clarified the use conditions of desiccant;
--Added Appendix A and Appendix B.
Appendix B of this standard is a normative appendix, and Appendix A is an informative appendix. This standard is proposed and managed by the National Technical Committee for Packaging Standardization. GB/T 14188--2008
The drafting units of this standard are: General Research Institute of Mechanical Science, Shenyang Anti-Rust Packaging Material Co., Ltd., Baoxin Steel Co., Ltd. Research Institute.
The main drafters of this standard are: Huang Xue, Liu Xiaolin, Chen Hongxing, Wu Xiuwei, Qi Qingju, Ding Guozhen. The previous versions of the standard replaced by this standard are: -GB/T 14188--1996.
1 Scope
General rules for the selection of gas phase anti-rust packaging materials
This standard specifies the selection and use requirements of gas phase anti-rust packaging materials. GB/T14188-2008
This standard applies to the selection of gas phase anti-rust packaging materials when metal materials and their products (hereinafter referred to as products) are packaged for gas phase anti-rust.
2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any referenced document with an R date, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any referenced document without a date, the latest version applies to this standard. GB/T16267 Test method for packaging materials Gas phase corrosion inhibition JB/T5520 Technical conditions for drying ovens
3 Main types
3.1 Gas phase anti-rust paper
Volatile Corrosion Inhibitor (VCI) is added to the anti-rust base paper. 3.2 Gas phase anti-rust plastic film
Plastic film made of polyolefin resin as the base material, VCI is added, and then melted and extruded. 3.3 Gas phase anti-rust agent
Vacuum phase anti-rust material made of VCI with auxiliary materials in different dosage forms and used in solid form. 4 Selection requirements
4.1 Selection basis
According to the anti-rust packaging requirements of the product, suitable VCI packaging materials should be selected from Appendix A: 4.2 Material quality
The quality of the selected VCI packaging materials should meet the requirements of the corresponding product standards. The user can determine and verify its human indicators as needed.
4.3 Storage and environmental conditionsbzxz.net
4.3.1 Storage
Sealed VCI packaging materials and packaging products should be stored in a cool and dry warehouse, opened when used, and should also be kept in a sealed, self-sealing container during continuous use. If there is no self-sealing packaging container, the side containing VCI should not be exposed to the air for more than 8 hours. If this packaging is damaged or contaminated by moonlight, wind, rain, acid, alkali, and salt substances, the gas phase corrosion inhibition capacity should be re-tested according to GB/T16267, and it can only be used after passing the test. 4.3.2 Environmental conditions
4.3.2.1 Temperature
The ambient temperature of the VCI packaging materials and the products packaged therein shall be lower than 65℃. 4.3.2.2 Relative humidity
The ambient relative humidity of the VCI packaging materials and the products packaged therein shall be lower than 85%. 1
GB/T 14188—2008
4.3.2.3 Light
VCI packaging materials and the products packaged therein shall be protected from sunlight. When it is unavoidable, they shall be shielded by shading materials. 4.3.2.4 Airflow
VCI packaging materials and the products packaged therein shall not only be well sealed but also shielded in the presence of strong airflow. 4.3.2.5 Acid and its vapor
Products packaged with VCI shall not be cleaned with metal cleaning agents containing hydrochloric acid or any solvents containing sulfur compounds before packaging.
VCI packaging materials and products packaged with them shall not be stored in industrial fumes containing hydrochloric acid, hydrogen chloride, hydrogen sulfide, sulfur dioxide or other acid vapors.
4.4 Usage restrictions
4.4.1 Basic requirements
Unless otherwise specified and verified data, VCI packaging materials shall not be used for products that protect optical devices and highly explosive substances and transmitters connected to them.
Assemblies of precision moving parts coated with anti-brain agents or lubricants shall not be used if they affect the performance and technical requirements of the products after packaging, storage and transportation with VCI packaging materials.
VCI packaging materials shall not be used for packaging food. 4.4.2 For non-ferrous metal materials
4.4.2.1 Before VCI packaging materials come into direct contact with non-ferrous metals other than aluminum and its alloys, they shall be subjected to adaptability tests according to Appendix B: they can only be used after passing the tests.
4, 4.2.2 For materials containing zinc, zinc plates, cadmium, cadmium plates, zinc-based alloys, magnesium-based alloys, lead-based alloys and other alloys (including solders) containing more than 30% zinc or more than 9% lead and their parts, when these materials or they are treated or shielded by other methods, they shall be subjected to adaptability tests according to the Appendix before being packaged with VCI packaging materials, and they can only be used after passing the tests. 4.4.3 For non-metallic materials
For VCI packaging materials, parts and assemblies containing non-metallic materials such as plastics, rubber, oils, and coatings, they shall be subjected to adaptability tests according to Appendix B before being used, and they can only be used after passing the tests. 4.4.4 Use of the same VCI packaging materials in the same package When different VCI packaging materials are used in the same package, the adaptability test shall be carried out according to Appendix B and they can only be used after passing the test. 4.4.5 Use with lubricants
When VCI packaging materials are used in assemblies containing lubricants, the adaptability test shall be carried out according to Appendix B and they can only be used after passing the test. Before packaging assemblies with VCI packaging materials, excess grease on the assemblies shall be removed. If it is an adhesive or solid lubricant that is evenly dispersed and bonded to the substrate, it does not need to be removed. 5 Usage requirements
The use of VCI packaging materials depends on factors such as the degree of sealing, environmental conditions and product materials. In general, the use area of VCI paper or VCI plastic film shall not be less than the surface area of the packaged product. For VCI materials adsorbed by powdered, crystalline VCI materials or other porous carriers, the effective content of VCI in the sealed packaging volume shall not be less than 35g/m. 5.2 Cleaning and Drying
The products should be cleaned and dried before packaging with VCI packaging materials. During the anti-rust packaging process, the products should not be touched with bare hands. When the packaging cannot be completed by mechanized or semi-mechanized procedures, the cleaning process is best to use solvent gasoline or kerosene containing 5% to 10% fingerprint-removing anti-rust oil or dehydrating anti-rust agent. 5.3 Usage
5.3.1 When using VCI paper, VCI plastic film and the bags, tapes, envelopes, etc. made from them, the parts should generally be wrapped. 2
GB/T14188—2008
The side with VCI should face the metal. When using VCI paper or VCI plastic film directly as a packaging bag, the air in the bag should be as little as possible and the opening should be sealed.
5.3.2 When using gas phase rust inhibitor, the corrosion inhibitor vapor can be made to reach the metal surface by hanging bags. It is also possible to spray the gas phase rust inhibitor powder directly into the sealed container by spraying or atomizing, and then seal the container immediately. 5.3.3 There should be no other materials between the product and the gas phase rust inhibitor packaging material. It is allowed to use solvent dilution type, fingerprint type rust inhibitor or dehydrated rust inhibitor to clean and dry the residual oil film and protective passivation film. 5.3.4 The surface of the product to be rusted should be within 300mm of the gas phase rust inhibitor packaging material. 5.3.5 All gas phase rust inhibitor packaging should be sealed. 5.3.6 When the gas phase rust inhibitor packaging material has other instructions for use, it can be used according to its instructions. 5.3.7 When the gas phase rust inhibitor packaging material is used for metal products stacked in layers, it should be placed between each layer. When used in cartons with isolation boards, in addition to lining the inner wall of the carton with gas phase rust inhibitor packaging material, the upper and lower surfaces of each layer of isolation board must be covered with gas phase rust inhibitor packaging material. 5.3.8 In order to prevent the product or sealed package from being damaged, pads and cushioning materials shall be used to pad the protruding sharp corners and edges, and the padding shall be closely around the product. If the use of VCI cushioning materials has an impact on the contacted products, aluminum foil or other shielding materials shall be used to separate the products and VCI cushioning materials.
5.3.9 VCI materials, such as VCI oil, shall be applied to sealed parts such as cylinders and gear boxes, and sealed immediately. For components with smaller through holes, when the hole depth is greater than 150 mm, VCI materials shall be embedded in the holes, and the parts to be protected shall not be more than 300 mm away from the VCI materials. To protect the inside of sealing parts and blind hole components, the minimum amount of VCI materials shall meet the requirements of 5.1. If necessary, use labels or other forms to indicate on the components "Do not use before VCI materials are removed". 5.3.10 When the product is coated with working oil, it is necessary to add oil-proof barrier materials between the VCI packaging material and the outer packaging material to prevent the outer packaging from being soaked by oil. VCI packaging materials with dual VCI and barrier properties can also be used directly. 5.3, 11 Generally, desiccant is not required in the packaging of VCI packaging materials, but when the above conditions of use cannot be met or there are special requirements, desiccant can be appropriately placed to prevent metal corrosion during the induction period of the VCI packaging materials. 5.3.12 For general products, the VCI packaging materials can be removed. For precision moving parts, when there are powdery or crystalline deposits on the surface and they do not need to be stored any further, they can be removed with alcohol solvents. GB/T 14188-2008
Buffer
Vapor-phase anti-rust paper
Laminated Vapor-phase anti-rust paper
Enhanced Vapor-phase anti-rust paper
Vapor-phase anti-rust tile paperboard
Vapor-phase anti-rust board paper
Vapor-phase anti-rust plastic film
Anti-sa electric Vapor-phase anti-rust plastic film
Enhanced Vapor-phase anti-rust plastic film
Vapor-phase anti-rust stretch film
Vapor-phase anti-rust heat shrink Film
Reinforced aluminum-plastic composite VCI
Plastic sea film
VCI powder
VCI sheet (pill)
Sprayable VCI powder
VCI foam
Appendix A
(Informative Appendix)
Common VCI packaging materials
Table A.1 Common VCI packaging materials
VCI impregnated in rust-proof base paper||tt| |Composite plastic anti-rust base paper contains VCI
Rust-proof base paper is impregnated with VCI and passes through the plastic composite fabric reinforcement layer
Rust-proof corrugated board contains VCI
Rust-proof base paper (board paper) contains VCI
Polyolefin plastic film contains VCI
Combination of VCI and antistatic agent
Vapor phase anti-rust plastic film composite fabric reinforcement layer stretch plastic film contains VCI
Heat shrink VCI is contained in shrink plastic film
Plastic film containing VCI and aluminized film, multi-layer composite film with fabric reinforcement layer
Powder mixed with VCI and auxiliary materials
Small pieces processed or shaped by VCT and auxiliary materials or
Extremely fine powder mixed with VCI and auxiliary materials
VCI is impregnated in sheet-like polyurethane foam
Features and uses
Applicable to automotive parts, tools and measuring tools, machinery, weapons and equipment, electronic and electrical products Anti-rust packaging for light products such as automobile parts
Applicable to anti-rust and anti-expiration packaging for light products such as automobile parts, tools and gauges, machinery, weapons and equipment, electronic and electrical products
Excellent strength and good waterproofness, suitable for anti-rust packaging for heavy and large products such as metallurgical products, heavy machinery, automobile parts, weapons and equipment
It has dual functions of buffering and anti-rust, suitable for anti-rust packaging boxes, pads or partitions
Thicker and stiffer, it can be used as anti-rust paper packaging for pot roll core Box, pad or partition
Can make sealing layer by itself, used for anti-rust packaging of machine tools, auto parts, instruments and meters, electrical appliances, etc.
Electronic components, circuit boards, electronic control equipment, etc.
Rust-proof packaging of heavy and large products such as metallurgical products, children's machinery, weapons and equipment
Automation and skin-to-body anti-rust packaging
Used for heating to make sterilization packaging
High strength, good barrier properties, suitable for people, precision mechanical and electrical products , weapons and equipment adopt gas phase rust prevention and vacuum drying comprehensive packaging
Put into small bags and hang them in closed packaging space for rust prevention or fan-enhanced anti-rust
Put into small bags and place them in airtight packaging for rust prevention or fan-enhanced anti-rust
Spray directly on pipelines or container cavities for rust prevention pads, cracks and sharp parts for rust prevention protection classification
Buffer type
Gas phase rust prevention pearl palm
Gas phase rust prevention bubble pad
Gas phase protection Cloth
Water-based VCI liquid
VCI oil proof
VCI stick
VCI diffuser
Table A.1 (continued)
VCI contained in pearl cotton (PE foaming material)
VCI contained in plastic bubble pad
VCI and various functional additives added to the composite layer of cloth and film
VCI and other corrosion inhibitors and additives added to the water
VCI broken into mineral oil Add VCI to the base material, and the end has a live connection. Add VCI to the box-shaped base, and the bottom can be pasted with GB/T 14188-2008. Features and uses. It has the functions of impact, shear and cold protection. It is suitable for electronic components, anti-rust packaging of instruments and meters. Pads, buffers and anti-rust protection of sharp parts. It needs to have multiple special properties, such as screen knocking and long-term sealing anti-rust. Short-term anti-rust between mechanical processing procedures, anti-rust treatment liquid for washing, anti-rust liquid for inner cavity of pipelines, and pressure test liquid. It has anti-rust and lubrication; gas phase anti-rust and contact anti-rust multifunctional, used for anti-rust of closed systems such as speed boxes, various artillery, tank body tube cavities and general parts cavity anti-rust. Stick to the surface of any part to increase the local gas phase anti-rust ability. CB/T14188-2008, 1 Test purpose
Appendix B
(Normative Appendix)
Adaptability test method
By simulating the actual anti-rust packaging requirements of the product, the contact and non-contact accelerated corrosion tests between the vapor phase anti-rust packaging material and the product surface are carried out under specified environmental conditions to detect the adaptability of the vapor phase anti-rust packaging material and the product. B.2 Packaging test body
A representative packaging unit with good sealing performance. B.3 Test piece
The test piece in the packaging test body should be a real product, and its shape and size are determined by the size of the test instrument. If the real product cannot be selected, the test piece made of the same material and the same surface treatment process can be used instead. B.4 Test instruments and materials
a) Drying oven:
b) Dry explosion device: There is a structure inside to hang the packaging test body; c) Glycerol aqueous solution: At 24'C, its mass fraction is 35%; d) According to the actual anti-rust packaging requirements, select the required vapor phase anti-rust packaging material; e) Adhesive tape: to ensure the sealing of the packaging.
B. 5 Test process
According to the actual anti-rust packaging requirements, assemble the packaging test body and seal it with adhesive tape: a2
b) Add glycerol aqueous solution to the desiccator to a depth of 10mm, and form a 90% relative humidity space at 60℃; c) Hang the packaging test body in the desiccator, and the height of the lower end of the test body from the liquid surface should be 10mm; d) Apply a small amount of vacuum sealing oil to the ground mouth of the desiccator, cover it, and fix the cover at the bottom with medical tape; e) Put the test container in an oven heated to 60℃±2℃, and keep it warm for 72h until the test period expires. B.6 Test result evaluation
Take out the packaged test body, unpack it, and observe the changes of the test piece (if the surface is coated with anti-rust oil or other temporary coatings, they should be removed before observation) and other anti-rust packaging materials: a) The surface of the metal test piece should not have obvious discoloration and rust; b) The vapor phase anti-rust packaging material should not have obvious peeling; d) Plastics, rubber and other non-metallic materials should not have delamination, embrittlement, deformation, discoloration, or cracking; d) Although there is a slight deposit on the surface, it can be removed with ethanol. Those that meet the above requirements are considered to be suitable. 6
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