Performance and Function of Sealing Materials for Steel Drum Cap Seals
With the development of the country's export-oriented economy, the volume of commodity exports is constantly increasing, and various steel drum cap seal manufacturers attach great importance to improving the quality of steel drum cap seals. In order to meet the requirements of international maritime dangerous goods regulations, many manufacturers of steel drum cap seals have begun to use round edge rolling technology. At the same time, the selection of sealing materials and the understanding of its important role in product quality are also constantly deepening.
Ⅰ. The performance of sealing materials for steel drum cap seals
According to the performance requirements of steel drum cap seals for sealing materials, a good sealing material must have the following characteristics:
It has certain chemical resistance. The sealing material does not corrode the metal surface, nor does it react with the sealed medium;
After the material is cured, it has certain strength and elasticity;
It has certain adhesion to the steel plate. The sealing filler has good adhesion to the metal bonding surface, even if it is subjected to impact and vibration, it can still firmly adhere to the metal surface.
It has good workability.
In short, the selection of sealing materials should be based on the equipment level of each plant. We should choose a steel drum cap seal material that has good sealing effect, easy to use, easy to manage, consumes less, the price is appropriate, and harmless to the operator.
Ⅱ. The role of sealing materials in the manufacturing process of steel drum cap seals
"Leakage rate" is a very important quality indicator of drum cap seals. Leakage is a fatal defect of steel drum cap seals. In the manufacturing process of steel drum cap seals, if we want to reduce the leakage rate, we must implement full-process management such as cutting, stitching, and sealing. The quality of cutting and stitching is relatively easy to control, but the quality of rolling the rim of the drum body and bottom cover is much more difficult to control. In the whole process of rolling, improving the sealing quality of the ring seam is a key issue. In addition to ensuring the geometric dimensions of the rolled edge, the filling of the sealing material is also crucial (of course, except for the welding method for the barrel body and bottom cover). What is the role of the sealing material?
1. The rolling of the drum body and bottom cover of the steel drum cap seal is completed by using mechanical external force to make the steel plate produce bending deformation in a cold state. Regardless of whether it is rectangular or circular rolling, the formation of voids in its cross-section is inevitable. If the holes are not filled with sealing material, it will be difficult to ensure that the drum steel cap seal does not leak after it is made.
2. Steel drum cap seals are the final packaging of products such as petroleum, chemical, and food (many of which are liquids). They play a role in packaging and protecting the contents during transportation, so it is required that steel drum cap seals must have a certain impact resistance. Although the impact resistance of the circular rolled-edge barrel is relatively high, it is ultimately formed by the bending deformation of the steel plate, unlike welding, it can form a whole. When the steel drum cap seal is subjected to external impact, it will cause a certain degree of loosening in the rolled edge part. If there is no sealing material with certain elasticity in the rolled edge to fill the gap, the liquid material inside the barrel will seep out, causing pollution and waste.
3. If the top of the open-top barrel does not have sealing material, it cannot meet the requirements of international maritime dangerous goods regulations and is not a complete product, because it cannot realize the function of packaging and protecting the contents.
From the above analysis, it is not difficult to see that the sealing filler plays a crucial role in preventing steel drum cap seals from leaking.
Selection Principle Of Drum ClosureJuly 1, 2022(1) For goods with low requirements on sealing performance for contents with low requirements on sealing performance, such as grease, it is generally appropriate to select the lift pressure closed str...view
Drum Liners for Steel DrumsApril 27, 2023Drum liners are an essential component for many industrial applications that require the transportation or storage of liquid or powdered materials. When it comes to steel drums, drum liners are partic...view
What Are the Recommended Colors for Steel Drum in Global Market?January 3, 2023The latest recommended color standard for steel drums issued by the International Steel Drum Organization, among which the ICDM steel drum color standard has been affirmed by many parties and recommen...view
ISDI: What You Should Know When Purchasing New Steel DrumsJune 30, 20221. Steel drum manufacturers can manufacture steel drums according to the specifications you need.2. The user's product must be compatible with its packaging steel drum.3. You need to carefully che...view
ISDI: Precautions For Steel Drum Storage, Transportation And UseJune 30, 2022The correct storage and transportation of steel drums can help maintain the safety of employees, improve the transportation state and reduce quality problems.The transportation and hazardous materials...view