Molded rubber products refers to the vulcanization machine with a mold forming and vulcanization of rubber products, the need for accurate size, bright and clean surface, dense texture, such as sealing ring, sealing strip, rubber bearing, rubber stopper and other rubber products. Molded rubber products have strict requirements on the size, and there are often problems such as lack of glue, bulge, sag, etc., so how is the lack of rubber products caused by, and how to prevent the lack of glue?

Lack of glue problem reason and solution

Reason one, use glue quantity is too little.
1. Increase the amount of glue used;
2. Adjust the glue injection hole to ensure sufficient glue injection; (The glue hole refers to the glue mouth of the mold)

Reason two, the overflow mouth is too large, so that the rubber material can not fill the cavity, overflow from the overflow mouth or the location of the overflow mouth is wrong
1, change the size of the overflow port or reduce the number of the overflow port;
2. Reasonable selection of the location of the overflow port;

Reason three, release agent dosage is too much, so that the glue material can not be closed at the confluence in the cavity.
1. Reduce the dosage of release agent;
2, pay attention to the glue before use can not be stained with oil;

Four reasons, the vulcanization speed of the rubber material is too fast, the rubber material is not filled with the cavity and has been vulcanized, so that the fluidity of the rubber material becomes worse, the rubber material can not be filled with the cavity.
1. Adjust the compound formula to extend the burning time;
2, increase the size of the feed port or increase the number of feed port;