What is the quality solution for silicone rubber products?

1. The rubber molding products are sticky and the physical properties do not meet the requirements; 

Reasons: 1. Low vulcanization temperature and short vulcanization time; 2. Insufficient amount of vulcanizer.

Solution: 1. Adjust the vulcanization temperature and vulcanization time 

2. Increase the amount of vulcanizer and use a new vulcanizer 2. The vulcanized products are brittle and easy to crack.

 Reasons: High vulcanization temperature and long vulcanization time. Solution: Adjust the vulcanization temperature and time

3. Causes of blistering:

1. Mixed with air

2. Improper vulcanization conditions

3. Mixed with foreign matter Solution:

 1). Avoid over-refining of the rubber, use the open mill to fully exhaust, and exhaust before the mold is closed 

2). Adjust the vulcanization temperature, time, and amount of vulcanizer 

3). Clean the open mill and wipe off the water droplets on the roller surface 

4). Causes of lack of rubber and bending of vulcanized products: 1. Poor flow of rubber 2.

Solution to scorch: 1. Perform moderate plasticization and increase the amount of release agent 2. Reduce the modulus and gradually increase the model pressure 

5. Causes of dimensional fluctuations: Molding and vulcanization operations Improper solution: uniform plasticization, fixed glue loading, adjust vulcanization temperature, time, pressure 

3. Excessive glue edge Reason: Improper molding and vulcanization operation Solution: Reduce the glue loading, and fully remove the glue edge of the model before molding 

7. Spots and discoloration Reason: 1. Mixed with air and foreign matter 2. Vulcanizer discoloration 

3. Improper secondary vulcanization Solution: 1). Clean the mixing mill and wipe off the condensed water on the mixing roller 

2). Avoid long-term storage of rubber with vulcanizer to prevent the temperature of the rubber from rising after adding vulcanizer 

3). Perform secondary vulcanization immediately after flat plate vulcanization, and fully circulate and exhaust the air in the secondary vulcanization tank