Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T6068\u201492
Vapor phase rust-proof materials
Published on 1992-05-05
Use method
Implementation on 1993-0701
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Vapor phase rust-proof materials
4 Use method
1 Subject content and scope of application
This standard specifies the method of using vapor phase rust-proof materials for rust-proof packaging of metal products. 2 Reference standards
GB2361
GB4879
GB12339
JB4051.1
Wet heat test method for anti-rust grease
Anti-rust packaging
Protective inner packaging materials
Technical conditions for vapor phase anti-rust paper
JB/T6067 Technical conditions for vapor phase anti-rust plastic filmJB/ T6071 Technical conditions for gas phase rust inhibitors
QB868
Gas phase rust inhibitor paper
3 Application technology and methods of gas phase rust inhibitors
3.1 Powder (tablet) method
JB/T6068-92
Spread or spray the gas phase rust inhibitor powder on the protected product, or put it into a gauze bag or paper bag, or press it into tablets and place them around the protected product. In a sealed package, its effective action distance depends on the vapor pressure of the gas phase rust inhibitor. Generally, the effective distance should be less than 300mm. The usage should be no less than 35g per cubic meter of packaging space. 3.2 Method of treating carrier materials with gas phase rust inhibitors
Apply (or immerse) gas phase rust inhibitors on carrier materials such as paper, cloth, polymer film, etc., and make gas phase rust inhibitors after drying. Paper, gas phase rust inhibitor tape, gas phase rust inhibitor plastic film, etc. are placed in a sealed packaging box, and the surface treated with gas phase rust inhibitors is facing the product, and it is required to contact or approach the surface of the product. If the part is more than 300mm away from the surface of the metal product, it should be used with gas phase rust inhibitors. The entire package should be sealed. When using gas phase rust inhibitors to treat materials to encapsulate products, the area of \u200b\u200buse should be at least equal to the inner surface area of \u200b\u200bthe packaging container. 3.3 Solution method
Dissolve the gas phase rust inhibitor in water or an organic solvent (such as ethanol), and then dip it on the surface of the metal product. When the solvent evaporates, seal the package. In practical applications, the vapor phase rust inhibitor solution can also be impregnated on the inner lining of the packaging box. 4 Requirements and storage of vapor phase rust inhibitor materials
4.1 Material requirements
The vapor phase rust inhibitor materials used must comply with the provisions of JB4051.1 or QB868, JB/T6071, and JB/T6067. 4.2 Storage of materials
4.2.1 Spare vapor phase rust inhibitor materials should be sealed and stored in a cool and dry place. At the same time, they must be protected from the influence of wind, rain, snow, acid, alkali and other chemicals. They should also be kept away from heat sources, and avoid the influence of ground moisture and direct exposure to sunlight. 4.2.2 During continuous packaging operations, vapor phase rust inhibitor materials should be placed in automatic sealing containers, or sealed cabinets, boxes, troughs and other similar containers should be used to minimize the time when the vapor phase rust inhibitor materials are directly exposed to the air. 4.2.3 VCI materials should be used as soon as they are taken. If they cannot be used up at one time, they should be resealed for storage. 4.2.4 VCI materials with holes, damage or pollution that affect the performance of use should not be used. Approved by the Ministry of Machinery and Electronics Industry on May 5, 1992 and implemented on July 1, 1993
JB/T6068--92
4.2.5 VCI materials with a storage period of more than one year from the date of leaving the factory must be retested according to the anti-rust performance specified in the corresponding standards and can only be used after passing the inspection.
5 Requirements for inner packaging and environment
5.1 Pretreatment
Before anti-rusting, Jinzhan products must be cleaned and dried according to Articles 2.3 and 2.4 of GB4879. When using alkaline degreasing agents and chlorinated hydrocarbon compounds (such as trichloroethylene, etc.) for cleaning, the residual alkaline substances and chlorides should be prevented from affecting the gas phase rust-proof materials.
5.2 Ambient temperature, humidity and pH range
The gas phase rust-proof materials should be used below 60\u2103, relative humidity \u226485%, and near neutral (pH6~8) conditions. 5.3 Buffer materialsbZxz.net
Non-corrosive buffer materials should be used. The gold flat products should not be in direct contact with wood, asbestos, wool, hemp, paper scraps and other cushioning materials or filling materials. Aluminum foil or polyethylene film or other appropriate shielding materials that meet the requirements of GB12339 should be used to isolate the products and gas phase rust-proof materials from the buffer materials or filling materials to prevent the influence of moisture and corrosive gases emitted by the buffer materials or filling materials. If the gas phase rust-proof materials themselves have shielding capabilities, shielding materials can be used for isolation. If the products have protruding parts or sharp corners that will damage the anti-rust packaging materials, they should be wrapped or padded separately. 5.4 Nonferrous metals
For nonferrous metals other than brass and aluminum, products with plating or other surface treatment parts, the adaptability test shall be carried out in accordance with the provisions of Chapter 6. Only those that are determined to have no impact can be packaged with VCI materials. 5.5 Non-metallic materials
For metal products with non-metallic materials, such as silicone, plastic, coating, rubber parts, etc., and that use lubricating oil, adhesive, anti-rust grease and VCI materials, if they need to be packaged with different types of VCI materials, they shall be tested in accordance with Chapter 6 and meet the adaptability requirements, or the non-metallic parts shall be wrapped with polyethylene film separately. 5.6 Removal of VCI
If crystals or powder deposits of VCI are observed on the surface of precision moving parts, the deposits shall be removed by scrubbing with anhydrous ethanol before using lubricants.
6 Adaptability test
6.1 Test purpose
This test is used to evaluate the adaptability of VCI materials with inner packaging under certain humid and hot conditions. Test instruments and materials
6.2.1 Wet heat test chamber: should meet the requirements of GB2361; 6.2.2 Polyethylene film: thickness 0.05\u00b10.01mm; Nylon thread or plastic thread:
6.2.3
6.2.4 Stainless steel S-type hook;
6.2.5 Test piece: 50mm\u00d750mm\u00d73~5mm, three pieces. 6.3 Reagents and solutions
6.3.1 Distilled water;
6.3.2 Aviation scrubbing gas oil:
6.3.3 Anhydrous ethanol (chemically pure)
6.4 Test conditions
6.4.1
6.4.2
Temperature: 40\u00b12\u2103;
Relative humidity: >95%;
Air flow rate: 3 times the volume of the chamber/h;
6.4.33
6.4.4 Rotation of specimen rack: 1/3r/min.
6.5 Test operation
JB/T6068\u201492
6.5.1 Solid. Cut 160mm\u00d7160mm of the material treated with the gas phase rust inhibitor or weigh 1g of the gas phase rust inhibitor powder, put the coating surface (or powder) close to the test piece, and wrap it. If it is a gas phase rust inhibitor material that is not coated with plastic, wrap it with a layer of polyethylene film as an outer package in the same way. Then wrap it tightly with nylon thread in a cross shape, write down the test piece number, hang the test piece on the rotating rack in the wet heat box with a hook, start the test equipment, and write down the start time. 6.5.2 Shan or other compounds. Apply the cap oil or other liquid or semi-solid material to the polished, cleaned and dried test piece, and then wrap it with a layer of polyethylene film according to the provisions of 6.5.1, and then wrap it tightly with nylon thread, number it, hang it, and conduct the test. 6.5.3 The wet heat box operates for 8 hours a day and stops working for 16 hours, with a cycle of 24 hours. After 7 cycles, clean and dry the test piece with anhydrous ethanol and then inspect it. 6.6 Evaluation of test results
6.6.1 For metal samples, check for corrosion and discoloration according to Chapter 4 of JB4051.1. 6.6.2. For non-metallic solid material samples, check for brittleness, blistering, cracking, delamination, dissolution, stickiness and other quality changes. Determine the tensile strength or adhesion.
6.6.3 For samples coated with lubricating oil, liquid or semi-solid and other compounds, check whether the coated test piece is corroded. 7 Inspection rules
According to the provisions of Chapter 4 of GB4879.
Additional instructions:
This standard is proposed and managed by the Wuhan Materials Protection Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Wuhan Materials Protection Research Institute. The main drafters of this standard are Zhao Qingling, Liu Yiwu, Li Hanchun and Han Jin. People's Republic of China
Mechanical Industry Standard
Vapor Phase Rust Inhibitor
Use
JB/T606892
Published by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing 100081)
Copyright reserved
No reproduction
Format 880\u00d712301/16 Printing Sheet 3/8 Number of Words 6000 First Edition in September 1992 First Printing in September 1992 Number of Prints 00.001-700
Price 0.90 Yuan
No. 0633
26-8909 /
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