Rubber products are everywhere in our lives, whether they are vehicles, machinery, electronic equipment or daily necessities, they are inseparable from rubber products. However, during use, rubber products may crack, which not only affects the appearance, but may also lead to performance degradation and even loss of use value. So, what are the causes of cracks in rubber products?
(1). The main causes of cracks in rubber products
1. Material reasons
The problem of cracks in rubber products is largely related to the quality and performance of the material. If the quality of rubber raw materials is not up to standard, such as the sulfur content, nitrogen content, ash and other components of vulcanized rubber, it may cause cracks in the product during use. In addition, if the quality of auxiliary materials such as filling materials and reinforcing materials used in rubber products is not up to standard, it will also lead to insufficient strength of the product, which may lead to cracks.
2. Mold reasons
Molds are key equipment for the production of rubber products. If the design of the mold is unreasonable or the production quality is not up to standard, it may cause stress concentration during the molding process of the rubber product, which may lead to cracks in the product during use. In addition, mold wear and damage can also cause cracks on the surface of rubber products.
3. Reasons for production process
The production process of rubber products has a great influence on the quality of the products. If the vulcanization temperature, vulcanization time, pressure and other process parameters are not properly controlled, it may lead to problems such as insufficient strength and inappropriate hardness of rubber products, which may lead to cracks. In addition, if improper operations are performed during the production process, such as excessive stretching, excessive folding, etc., it will also cause cracks in rubber products.
4. Reasons for use environment
The environment in which rubber products are used has a great impact on their lifespan and performance. If the use environment is too harsh, such as high temperature, low temperature, oil, acid and alkali and other corrosive environments, it may accelerate the aging of rubber products, lea
(2). Countermeasures for cracks in rubber products
1. Use high-quality raw materials In order to produce high-quality rubber products, high-quality raw materials must be used. When purchasing rubber raw materials, you should pay attention to key indicators such as sulfur content, nitrogen content, and ash content to ensure the quality of the raw materials. At the same time, auxiliary materials such as filling materials and reinforcing materials must also be strictly controlled.
2. Optimize mold design Molds are the key to the production of rubber products. Mold design should be optimized to avoid sharp corners, edges and other parts on the mold surface that cause stress concentration, and to reduce the risk of cracks in the product during the molding process. At the same time, attention should be paid to regular inspection and maintenance of molds to ensure the accuracy and quality of the molds.
3. Strictly control the production process When producing rubber products, process parameters such as vulcanization temperature, vulcanization time, and pressure must be strictly controlled to ensure that the products have sufficient strength and hardness. At the same time, it is necessary to strengthen operating specifications during the production process to avoid excessive stretching, excessive folding and other operations that may cause cracks.
4. Improve the aging resistance of rubber products In view of the impact of the use environment on rubber products, anti-aging agents, antioxidants, anti-UV agents and other additives can be added to improve the aging resistance of rubber products and extend their service life.ding to the occurrence of cracks.
Hangzhou Bright Rubber Plastic Product Co.,Ltd
Contact : Shelly Xi
Tel/WhatsApp/Wechat: +86 13757959160
Email:shelly@brightrubberplastic.com