CB 1203-1989 General technical requirements for protective waterproof wax for torpedoes
Some standard content:
China State Shipbuilding Corporation Department Standard
General Technical Conditions for Protective Waterproof Wax for Torpedoes Subject Content and Scope of Application
This standard specifies the technical requirements, test methods, inspection rules, etc. for protective waterproof wax. This standard applies to protective waterproof wax applied on the surface of anodized film of aluminum alloy shell of torpedoes Reference Standard
GB 261
GB1720)
GB1725
GB 1728
GB 1733
GB 1741
GB 1766
GB 1767
GB 1865
GB 3186
GB 7791
3 Terminology
Determination of flash point of oil products (closed cup method)
Determination of adhesion of paint films
Determination of solid content of coatings
Determination of drying time of paint films and putty films
Determination of water resistance of paint films
Determination of mildew resistance of paint films
Rating method for weather resistance of paint films
Determination of weather resistance of paint films
Determination of aging of paint films (artificial acceleration)
Sampling of coating products
Test method for drag reduction performance of self-polishing antifouling paints Disc torque method
3.1 Water repellent rolling angle
The angle at which a water drop starts to roll in the water repellent test device. 4 Technical requirements
4.1 Material composition
CB 1203 ---89
Classification number: U05
The material is made of a wax or a mixture of wax and lustrous oil, which is finally dispersed or dissolved in a solvent. 4.2 Construction temperature
When the wax material is applied at a temperature of 10 to 38 (, it should be able to flow and be easy to apply. The quality of the wax film, such as gloss and uniformity, should be equivalent to the quality of the wax film applied at 23 (.
4.3 Drying time
The drying time of the wax film surface should not be more than 20min. 4.4 Non-volatile matter
The non-volatile matter of the wax material should not be less than 4.5%.
4.5 Flash point
The flash point of the wax material should not be less than 33 (.
Approved by China State Shipbuilding Corporation on April 3, 1989 and implemented on October 1, 1989
4.6 Wax film properties
CB 1203 --- 89
The polished wax film should be bright, without streaks or oil stains. The wax film should have no resistance to the polishing cloth during polishing, be easy to operate and the film mist should be easy to eliminate.
4.7 Water repellency
The wax film should be water repellent, and the water repellent rolling angle should be less than 30°4.8 Water resistance
Within 4 hours of flooding, the wax film should not soften or crack. 4.9 Aging resistance
After 200 hours of aging test, there is no color change between the waxed sample and the unwaxed sample. 4.10 Temperature change resistance
4.10.1 Wax material is placed for 2 hours according to the method in 5.11.1. After 4 hours, there should be no gelling, delamination, precipitation, odor or other deterioration. 4.10.2 After 7 cycles of testing according to 5.11.2, the wax film should not soften, crack, fog or blur. 4.11 Weathering resistance
After 90 days under dense marine atmospheric conditions, the wax film should still be intact. 4.12 Removability
After 90 days of weathering resistance test and 200 hours of aging resistance test, the sample should be able to be completely removed by xylene. 4.13 Storage stability
After one year of sealed storage, the wax material should be free of delamination and gelling. 4.14 Anti-mildew performance
The wax film should It has first-class mildew resistance.
4.15 Influence on fluid resistance
The wax film should not increase the fluid resistance of the surface of the aluminum alloy anodized film. 4.16 The wax material should be uniform, free of lumps and impurities. 5 Test method
5.1 Unless otherwise specified or agreed by both parties, all tests should be carried out at 232°C and relative temperature (50-5)%: 5.2 Test sample state conditions
5.2.1 Use 75mm×150mm aluminum alloy plate with surface roughness Ra≤1.6μm for anodizing and coloring sealing. 5 .2.2 The wax material should be applied from one end to the other end in sequence. After the surface is initially dry, it should not be applied back and forth. 5.3 Application degree
Put the same batch of wax materials and the samples prepared according to 5.2 in 10±2C, 23±2C (relative humidity 50%~55%), (38±2) (environment for 2h, and apply the wax material to the samples. After the wax film of all samples is polished, compare their gloss under the test conditions of 5.1, and check for cracks or cracks.
5.4 Determination of drying time
The determination of surface drying time shall be carried out according to Method B of GB1728. 5.5 Determination of non-volatile matter
The determination of non-volatile matter of wax materials shall be carried out according to Method B of GB1725-surface blood method. 5.6 Determination of flash point
The flash point of wax materials shall be determined according to the closed cup method of GB261. 5.7 Wax film performance test
Construct according to 5.2.2. When polishing after the wax film is dry, observe whether the wax mist is easy to eliminate and whether the polishing cloth has a "resistance" feeling. 5.8 Water repellency test
Apply the wax material on the clean test sample. After polishing, immediately place it under running water and observe the water repellency. For the measurement of water rolling angle, see Appendix 220
A (reference).
5.9 Water resistance test
CB 120389
Conduct according to GB1733 A method, and the test immersion time is 4h. 5.10 Aging resistance test
Aging resistance test is carried out according to GB1865 (without water spraying), and the test cycle is 200h5.11 Temperature change resistance test
5.11.1 Place the sealed container containing the wax material under the condition of 20±2°C for 24h, take it out and restore it to room humidity state, and observe it. 5.11.2 The samples prepared in accordance with 5.2.1 and 5.2.2 are subjected to high and low temperature cycle test at 63 ± 2 (and -401 (variable temperatures). 5.12 Weathering test
The weathering test is carried out in accordance with GB1767, and the test time is 90 days. The exposure field (coastal area) under marine atmospheric conditions should be selected. An adjustable angle drying rack should be used. It is best not to repeat the test seasons, and the evaluation should be carried out in accordance with GB1766. 5.13 Removability test
The 90d weathering test sample and the waxed sample of the 200h aging test are thoroughly cleaned with xylene. After drying, they are sprayed with one coat of white nitrocellulose lacquer respectively with the comparison plate. After the paint film is completely dry, the adhesion of the paint film is measured. (The determination method is carried out in accordance with GB1720), and the test results of the paint film adhesion level should be the same.
5.14 Storage stability test
Store the sealed packaged wax material at room temperature for 12 months. During the test, shake the packaging container for 30 seconds and then let it stand for 2 hours. Visually observe its stratification or gelation, and it should meet the various indicators specified in this standard. 5.15 Mildew resistance test
The mildew resistance test is carried out in accordance with GB1741, and the specimens are tinplate or anodized aluminum. The test is carried out according to Method A and Method III
5.16 Determination of the influence of fluid resistance
Apply the wax material on a painted or unpainted anodized standard disc The above shall be measured in accordance with GB7791, with reference to the comparison disc, and the drag reduction rate shall be calculated respectively.
6 Inspection rules
6.1 Wax materials shall be inspected by the manufacturer in accordance with the provisions of this standard, and the products shall have a certificate of conformity, and be accompanied by instructions for use and construction documents. 6.2 Wax materials shall be inspected for appearance before leaving the factory. The packaged wax materials shall not contain impurities, and the cans and jars shall be intact. The appearance of the wax materials shall be milky white, thick paste, smooth and uniform. 6.3 Normal products shall be subject to irregular sampling according to the inspection items agreed upon by both parties (the test cycle time factor shall be considered). 6.4 When there are major changes in raw materials, formulas, and processes, they shall be re-inspected in accordance with the requirements of this standard. 6.5 Wax Material sampling is carried out in accordance with GB3186. The sample is divided into two parts, one is stored for reference, and the other is used as a sample for inspection. If the test result does not meet the requirements of this standard, double sampling and inspection should be carried out. If it still does not meet the requirements of this standard, the entire batch of products will be unqualified. 7 Precautions for marking, packaging, transportation and storage 7.1 Marking
The packaging container should indicate:
a. Product name or trademark;
b. Weight:
c. Factory date, manufacturer;
d. Storage period;
Flammable goods, safety regulations.
7.2 Packaging
The packaging must be sealed to prevent spillage or leakage. 7.2. 1
CB 1203
7.2.2 Metal cans and cans with wide folded edges should be used. 7.2.3
External packaging should be made of wooden boxes, wooden crates and other pressure-resistant, non-deformable outer packaging boxes. The outer packaging box should be marked with:
Product name or model, code;
Manufacturer's name:
Weight, quantity:
Outer dimensions of the packaging box:
Consignee, address:
Mark "Handle with care" and "Flammable" 7.2.5 The box should be accompanied by product certificates or instructions, construction documents, etc. 7.3 Transportation
Transport according to the national dangerous goods regulations,
7.4.1 Products should be strictly sealed and stored in dry and ventilated warehouses. 7.4.2 Fireworks are strictly prohibited in finished product warehouses (flammable) 222
A1 measuring instrument as shown in Figure A1.
2 The measurement method is as follows:
CB 1203--89
Appendix A
Water rolling angle measurement
(reference)bzxZ.net
Rolling angle measuring instrument
Apply wax material on three clean test panels, dry them, and then polish them. Place the panels on the horizontal surface of the measuring instrument. Drop a drop of water (about 0.1mL) on each test panel and slowly tilt the panel. Record the angle at which the water drop deviates from the vertical plane when it starts to roll. Repeat the test three times. Additional remarks:
This standard was proposed by the ship material professional group. This standard is under the jurisdiction of the ship material professional group. This standard was drafted by the 725 Institute and the 705 Institute. The main drafters of this standard are Jin Zhongmin and Hu Xianjiang. 223
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