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介绍44×18-20NHS 32PR E-3低断面无内胎井下矿用工业轮胎的设计情况。结构设计:模型外直径Ф1100 mm,轮胎断面宽473 mm,行驶面宽度410 mm,胎圈着合直径Ф510mm,花纹深度31.5mm;施工设计:胎面采用缠绕法成型,胎体帘布和缓冲层分别采用14层1400dtex/3和2层930dtex/2锦纶66帘布,成型机头直径Ф690mm;硫化采用双模定型硫化机。胎面采用矿坑胎专用配方。试验结果表明:轮胎充气外缘尺寸符合TRA标准,物理性能符合国家标准要求,且实际使用效果良好。
Describe the design of 44 × 18-20NHS 32PR E-3 low-section tubeless mining industrial tires. Structural design: the outer diameter of the model Ф1100 mm, the tire cross-section width of 473 mm, the width of the driving surface of 410 mm, the diameter of bead co-operation Ф510mm, depth of 31.5mm; construction design: tread winding method molding, carcass cord and buffer layer Adopting 1400 layers of 1400dtex / 3 and 2 layers of 930dtex / 2 nylon 66 plies, the forming head diameter is Ф690mm; vulcanization adopts dual-mode stereotype vulcanizing machine. Tire tread with a special formula. The test results show that: the size of the tire inflatable rim meets the TRA standard, the physical properties meet the requirements of the national standard, and the actual use effect is good.