共查询到20条相似文献,搜索用时 156 毫秒
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通过采取控制压延机辊筒温度恒定,使由于温度升高形成的中高度稳定;改造接头装置,改进接头硫化工艺,提高接头速度,稳定压延速度;辊筒上的积胶呈两侧多、中间少并逐渐过渡的状态,使贴合时帘布受力均匀等措施,提高了压延帘布的质量和质量稳定性. 相似文献
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用中高度法提高胶帘布压延质量厦门海燕实业总公司黄国荣1.概述压延是轮船生产最基本的精密加工工艺之一,而压延机对压延工艺及胶帘布的质量有重要影响。我公司从1993年5月开始对所使用的国产XY-41-1730四辊压延机进行调试,但因我们是一家综合性橡胶制... 相似文献
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分析轮胎生产中压延锦纶帘布打褶的原因,并提出相应的解决措施。通过改造制动线路,在帘布卷取结束、摆架换工位时释放电机抱闸;采用风控制动盘调节垫布张力;卷取卷径采用直流调速器和中心卷取控制,卷取卷径张力锥度递减控制等措施,帘布打褶现象明显减少,帘布有形耗损率下降到0.4%。 相似文献
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介绍全钢子午线轮胎外观质量缺陷产生原因及解决措施。通过合理设计和严格控制轮胎各部件的尺寸和质量、改进模具结构和定期清洗模具、保证轮胎各部件良好粘合、确定合理的硫化及定型工艺参数、及时修理或更换设备损坏配件等可以有效解决全钢子午线轮胎胎趾圆角、气泡脱层、胎侧接头开裂、胎圈变形、胎里露线、胎侧缺胶等外观质量缺陷。 相似文献
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通过长期跟踪涤纶短纤维生产过程控制及产品质量指标,对纺丝成形过程中产生的疵点及染色疵点形态进行了考查,分析了环吹筒组装使用、组件组装及压力控制等主要工艺操作条件对疵点产生的影响,总结了降低针织专用涤纶短纤维产品疵点含量的纺丝工艺及操作改进措施。 相似文献
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分析全钢载重子午线轮胎常见质量缺陷原因,并提出相应解决措施。通过采取检查整经辊和压力辊、裁断修边刀、喂料装置、自动定中系统及接头机接头轮的工艺参数和稳定性及严格控制成型平宽、半成品部件尺寸、挤出机各段温度、机头挤出压力和0°带束层胶料门尼粘度等措施,有效减少了全钢载重子午线轮胎生产过程中容易出现的胎体劈缝、肩弯和0°带束层散丝等质量缺陷,大幅提高了轮胎质量和生产合格率。 相似文献
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《Journal of Industrial and Engineering Chemistry》2014,20(1):202-207
Polyester cord-inserted rubber composites cut with the parallel and perpendicular directions to the fabric cord (RC||FC and RC⊥FC specimens, respectively) were thermally aged and the recovery behaviors from a circular deformation were investigated. The permanent deformation of the RC||FC specimen was more severe than that of the RC⊥FC specimen. Recoveries of the rubber composites without fabric cord were nearly the same irrespective of the cutting directions. Sources to cause the permanent deformation were found to be the increased crystalline region of polyester cord and the increased crosslink density of rubber part. 相似文献
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Samir N. Lawandy Magdy A. H. Zahran Marwa Rabee 《Journal of Adhesion Science and Technology》2018,32(3):302-316
Three types of bio-alkyd resins varies in their oil content and viscosity were added to EPDM rubber mix loaded by three bonding system consisting of Hexamethylenetetramine, Resorcinol and Hydrated silica (HRH). The mixes were charged by certain amount of thermal carbon black. Rubber dough was spread on polyester sheet fabric. The peel strength was used to measure the adhesion strength. The rubber-proofed fabric subjected to UV irradiation at different period of times. The dielectric constant, volume resistivity, thermal stability, water and air permeability of the various rubber coated fabric were examined. The addition of the bio-alkyd resin improved the various mechanical and physical properties of the rubber coated fabric materials. The suggested mechanism of bio-alkyd resin between EPDM and polyester fabric was also studied. 相似文献