One fluorotrichloromethane packaging steel drum (two)

4 requirements

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Figure 1 Steel drum structure

Table 1 Steel drum size

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2 The hydraulic test pressure value (gauge pressure) of the steel drum is 350kPa, and there is no leakage when the pressure is maintained for 5 minutes
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3 Steel drum drop test, the drop height is 1.
8m, and there is no leakage after falling
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3 Quality requirements

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1 Assembly quality of the closure

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1 The sealer is complete, sealed well after assembly, and ensure the interchangeability of the mating parts;

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2 The assembled height of the closure is lower than the crimping edge
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2 Appearance quality of steel drums

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1 The steel drum is round, without burrs, mechanical damage, and curling without iron tongue;

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2 There should be no more than ² dents in the steel drum, with an area of ​​no more than 100cm ² and a depth of no more than 3mm;

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3 Repair welding is not allowed on the straight seam of the barrel body and the top of the ring reinforcement;

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4 The barrel should be clean, free of rust, slag and other impurities
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3 Quality of the protective layer inside and outside the steel drum

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1 Quality of outer surface protective layer

a.
Spray white paint

—The adhesion of the coating film is not lower than the second level specified in GB325 Appendix A (Supplement);

—The thickness of the coating film should not be less than 0.
020mm;

—The coating film is flat, smooth, uniform in color, and free of wrinkles and flowing defects
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b.
Galvanized steel sheet

—The thickness of the zinc layer is not less than 0.
010mm;

-The zinc layer is complete, tightly organized, and free of defects such as layer formation and blistering
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2 Quality of the inner surface protective layer

a.
Spraying polyvinyl fluoride coatings must be sprayed twice and baked twice.

—The adhesion of the coating film is not less than GB325 Appendix A (Supplementary);

—The thickness of the coating film should not be less than 0.
020mm;

—The coating film is flat, smooth, uniform in color, free of wrinkles, pinholes, pitting and other defects
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b.
The thickness of the zinc layer shall be carried out in accordance with GB4956
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Related links: a fluorotrichloromethane packaging steel drum (2)