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The correct sequence for carbonization of residual glue in the glue can is:First, cool down to the softening range where the glue can still flow (about 120-140); Drain the remaining adhesive (℃), then use specialized cleaning adhesive or high flash point cleaning agent to circulate and soften the carbon residue, and finally use a copper brush or wooden scraper to remove itAvoid using high-temperature hard shovels, steel wire balls, and ordinary diluents – the former can scratch the coating inside the can, while the latter can contaminate the next batch of glue after residue.
| Steps | Key Operating Points |
|---|---|
| 1. Shutdown and cooling down | Reduced to about 130; ℃, power off and hang out, wear heat-resistant gloves and goggles |
| 2. Drain the remaining adhesive | Open the glue valve and drain it completely. Pour it out while it is flowing to avoid condensation into cakes |
| Add 3 cleaning glue | Inject specialized cleaning glue or high flash point cleaning agent, and heat up for 20-30 cycles; minute |
| 4 Mechanical cleaning | Copper brush and wooden scraper are used to clean along the tank wall, with a focus on the heating plate and dead corners |
| 5. Replace the filter screen | Replace the filter screen and nozzle together or perform ultrasonic cleaning, otherwise the previous work will be in vain |
| 6 Test machine confirmation | Add a small amount of new glue and circulate it to observe if the glue is smooth and if there are any black spots |
Q: There are black spots on the adhesive, but it does not affect the bonding. Can it be postponed until the next maintenance?
Answer: Not recommended. The black dot indicates that the carbon residue is already peeling off, and it is highly likely that the filter screen and nozzle will be blocked in the future. The shutdown loss is much greater than a single cleaning.
Q: Can I clean it with gasoline or thinner?
Answer: No. Low flash point, high safety risk, and residue can lead to foaming and abnormal viscosity in the next batch of adhesive.
Q: Can switching to low ash rubber particles really reduce carbon deposition?
Answer: It can significantly reduce. Rubber particles with low ash content and good thermal stability are less prone to skin formation under long-term insulation, which is also the reason why the thermal stability factor should be considered when selecting materials.
Sunlifehot melt adhesiveBefore leaving the factory, high-temperature thermal stability verification will be conducted, and Guangzhou Sunlife Trading can also provide insulation temperature and cleaning cycle suggestions based on customer equipment conditions to minimize unplanned shutdowns.
Conclusion The amount of glue used is small, and there are many varieties (books, packaging, and quick printing require a little each). Buying each item alone cannot meet the minimum order quantity, and the unit price is high. Using “mixed batch and combined order” – combining multiple categories of orders from the same supplier, or […]
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You will find hot melt adhesive everywhere in your daily life. From the furniture you sit on to the corrugated cardboard boxes containing mail at the local post office, it is not difficult to find items bonded with this popular adhesive. Companies that work with wood, fabric and foam plastics, shoe manufacturers, bookbinders and plastic […]
Hot melt adhesive is a type of thermoplastic that melts into a solid state by heating and applying temperature. When the adhesive begins to solidify (heat loss) before the material is bonded, cold bonding occurs, which can lead to bonding failure. Usually, it appears to be firmly adhered after bonding, but the bonding strength may […]
