| 陈水良.275/70R22.5公交专用轮胎胎体钢丝帘线的微观界面剖析[J].轮胎工业,2014,34(8):476-479 |
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| 275/70R22.5公交专用轮胎胎体钢丝帘线的微观界面剖析 |
| Analysis on Micro Interface of Carcass Steel Cord for 275/70R22.5 Bus Tire |
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| DOI： |
| 中文关键词: 公交专用轮胎 胎体 钢丝帘线 |
| 英文关键词: bus tire carcass steel cord |
| 基金项目: |
| 中图分类号:U463.341+.3/.6；TQ330.38+9 |
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| 中文摘要: |
| 对不同品牌的275/70R22.5公交专用轮胎使用后胎体钢丝帘线微观界面进行剖析。结果表明，0.20+6+12×0.175，3+9+15×0.175和3+9+15×0.175＋0.15三种胎体钢丝帘线实际使用前后的破断力变化很小，H抽出力与新轮胎相比略小。A品牌选用0.20+6+12×0.175钢丝帘线，在胎侧屈挠区域胎体钢丝帘线内部完好无损，B和C品牌分别选用3+9+15×0.175和3+9+15×0.175＋0.15钢丝帘线，胎侧屈挠区域钢丝帘线分别有明显的疲劳损伤现象。从B和C品牌轮胎的微观照片可以看出，钢丝帘线有明显疲劳磨损后产生的凹槽。 |
| 英文摘要: |
| The micro interface of carcass steel cord for different brands of 275/70R22.5 used bus tire was analyzed. The results showed that，compared with that of new tires，the breaking strength of 0.20+6+12×0.175，3+9+15×0.175 and 3+9+15×0.175+0.15 carcass steel cords from used tire were similar，H pull-out force decreased slightly. For brand A with 0.20+6+12×0.175 steel cord，the interior of carcass steel cord in the sidewall flexing region was intact. For brand B and C with 3+9+15×0.175 and 3+9+15×0.175+0.15 steel cord， respectively，the steel cords in the sidewall flexing region had obvious fatigue damage. The microscope photos of brand B and C tires indicated that the steel cord had grooves on the surface after fatigue wear. |
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