Phenomenon: the sponge rises to the height of 60%-70% and collapses immediately when it reaches the bubble point. It is commonly found in high POP and high powder sponge. The reaction is fast and the gel is insufficient in the later stage.
Solutions: 1. Check the quality and output of silicone oil; 2. Check the quality and output of tin catalyst; 3. Consider the delay of amine
Phenomenon: it didn't rise to the highest point. It was 7 meters long, but it didn't collapse until 13-15 meters
Solution: 1. Focus on checking whether polyether is mixed with impurities or has quality problems
Phenomenon: sponge does not react after startup
Solution: check whether water and TDI output
Phenomenon: the sponge does not react and boiling bubbles appear after startup
Solution: check whether the silicone oil is output
Wait a minute---------