高用胶量厚橡胶层二系叠层弹簧橡胶堆制品硫化成型工艺研究及硫化时间确定

Research on Vulcanization Molding Process and Determination of Vulcanization Time for Secondary Suspension Laminated Auxiliary Spring with High Compound Amount and Thick Compound Layer

研究硫化成型工艺对高用胶量厚橡胶层二系叠层弹簧橡胶堆制品质量的影响,并探究其硫化时间的确认方法。结果表明:采用压铸硫化成型方式完全可以满足该制品生产需求,且产品质量稳定性和生产合格率较高;根据产品胶料差示扫描量热分析、核磁共振法交联密度分析和刚度分析结果,采用胶层临界气泡点时间确定的产品硫化时间适宜,产品得到充分硫化。

The influence of vulcanization molding processes on the quality of secondary suspension laminated auxiliary spring with high compound amount and thick compound layer was studied,and the method for determining the vulcanization time of this product was explored.The results showed that the die-casting vulcanization molding method could fully meet the production requirements of these products,with stable product quality and high production qualification rate.According to the results of differential scanning calorimetry analysis,nuclear magnetic resonance crosslinking density analysis and stiffness anlysis,the vulcanization time of the product determined by the critical bubble point time of compound layer was appropriate,and the product had been fully vulcanized.