The EV charging cable dust cover is able to protect the inside of the charging gun from the intrusion of dust and other impurities, and is made of high-quality rubber material with excellent abrasion and impact resistance. EPDM rubber has good weather resistance, heat resistance, ozone resistance and chemical corrosion resistance, and good electrical insulation performance, which is an ideal material for the production of dust caps for electric vehicle charging guns; EPDM reclaimed rubber is a renewable resource for the recycling and reprocessing of EPDM rubber products, which can replace part of EPDM raw rubber to produce dust caps for electric vehicle charging guns, effectively reducing costs.
1. Why EPDM reclaimed rubber can produce dust caps for electric vehicle charging guns
EPDM reclaimed rubber retains the basic performance characteristics of EPDM rubber, which can meet the demand for rubber materials for the dust cover of electric vehicle charging gun.
EPDM reclaimed rubber has good weather resistance, which can provide the ability to resist outdoor environmental climates for the dust cover of electric vehicle charging guns, such as ultraviolet radiation, temperature changes, etc.; The electric vehicle charging gun will generate heat during the charging process, and the good heat resistance of EPDM reclaimed rubber can effectively prevent the EPDM dust cover from being deformed or damaged due to high temperature; Good electrical insulation type can ensure the safety of the charging gun during use; In addition, the charging gun may also be exposed to various chemicals such as detergents and gasoline during use, and EPDM reclaimed rubber retains the chemical resistance of EPDM rubber, which can prevent the degradation of material performance.
When using EPDM reclaimed rubber to reduce the cost of the dust cover of the electric vehicle charging gun, it is also necessary to fully consider the tensile strength, tear strength, wear resistance, etc., to ensure the mechanical stability and durability of the dust cover during use; Choose the right EPDM reclaimed rubber. In the process of production and use, EPDM rubber and EPDM reclaimed rubber should meet environmental protection requirements and do not contain or release harmful substances. The cost-effectiveness of materials is comprehensively considered while meeting performance requirements, and a balance among economic and environmental benefits is achieved.
2. How to optimize the vulcanization formula of dust cap for electric vehicle charging gun containing EPDM reclaimed rubber
When EPDM reclaimed rubber is mixed into the dust cap of electric vehicle charging gun, the ratio of reclaimed rubber and original rubber should be reasonably determined while considering the cost-effectiveness to ensure the best balance among product performance and cost. By adjusting the formulation of EPDM, such as adding appropriate reinforcing agents, softeners, antioxidants, etc., the performance of the finished product can be optimized to meet the application needs of EV charging gun dust covers.
EPDM reclaimed rubber and EPDM are used together to produce dust caps for electric vehicle charging guns, and traditional sulfur vulcanization system or peroxide vulcanization system can be selected; Among them, peroxide vulcanization systems (such as DCP) can provide good compression set properties and heat resistance. Use reinforcing agents such as carbon black or silica in moderation to improve abrasion resistance and tear strength; EPDM reclaimed rubber using peroxide vulcanization needs to pay attention to the type and amount of carbon black, and some carbon black may affect the peroxide vulcanization efficiency. Use softeners such as paraffin oil in moderation to improve processability and flexibility. Choose the right variety of antioxidants, such as antioxidants RD, antioxidants, ultraviolet absorbers, etc., to improve the weather resistance and oxidation resistance of the dust cover.
In addition, optimizing the production process conditions of EV charging gun dust caps containing EPDM reclaimed rubber can also further improve the quality of finished products, such as: appropriate adjustment of vulcanization temperature, time and pressure; Experiments are conducted to determine the optimal vulcanization conditions for ideal durability and impact resistance. Ensure that all materials are mixed evenly during the mixing process to avoid local oversulphur or undersulphur that can affect the performance of the final product.
The dust cover of the electric vehicle charging gun is an important part to ensure the reliability and service life of the charging gun, which can reduce maintenance costs and potential safety risks. Manufacturers must choose the appropriate EPDM reclaimed rubber, reasonably determine the mixing ratio of reclaimed rubber, appropriately adjust the vulcanization formula and production process parameters, and improve the comprehensive performance of the dust cap of the electric vehicle charging gun containing EPDM reclaimed rubber.
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