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      Rubber products differ from other engineering materials in that the processing process of rubber products usually faces many unique problems which are different from the common problems of other non-rubber materials in the processing process. So today we talk in detail about some of the main problems existing in the production process of rubber products, which may lead to problems and solutions!

1. Rubber products are too rough

Cause analysis: 

1. The mold surface is rough and not cleaned

2. The coke burning time of mixing glue is too short.

    Solution: clean the mold; Prolong the burning time.

2, rubber products rubber edge is too thick, the product is overweight

Cause analysis: 

1. Too much plastic material in the mold

2. Insufficient plate pressure

3. There is no corresponding residual groove in the mold.

Solution: 

1. Strictly control the unit consumption of semi-finished products

2. Increase plate pressure

3. Improve mold design.

3, rubber products have bubbles

Cause analysis: 

1. There are impurities or oil stains in the mold or rubber material.

2. Insufficient curing.

3. Not enough stress.

4. Vulcanized mold temperature is too high.

5 curing agent added less, curing speed is too slow.

Solutions: 1. Pressure

 2. Lengthen the sulfur 

3. Adjust the formula, speed up the vulcanization.

4. Exhaust more. 

5. The mode temperature cannot be too high. 

6. Increase the dosage of vulcanizing agent.

4, rubber products tear

Reason analysis: 

1. Vulcanization speed is too fast, the glue flow is not sufficient. 

2. The mold is dirty or the glue is sticky.

3. Too much isolator or release agent. 

Solution: 

1.Reduce the mold temperature and slow down the vulcanization speed.

2.Keep the glue. Mold cleaning.

3. Use less isolation agent or release agent. 

4. The glue is thick enough.

5, rubber products lack of glue

Cause analysis: 

1. The rubber material does not flow fully;

2. Insufficient single consumption of semi-finished products or insufficient glue loading;

3.  Poor exhaust performance of the die; Mold temperature is too high

Solution: 

1. Slow down the mold rising speed and repeatedly deflate;

2. Reformulate the mold filling amount;

3. Improve mold design and reduce mold temperature.