共查询到18条相似文献,搜索用时 156 毫秒
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介绍了煤矿用阻燃钢丝绳芯输送带的研制。主要包括骨架材料的选择、覆盖胶和粘合胶配方的设计以及实际生产工艺。经试验测试产品性能符合MT668-1997(煤矿用阻燃钢丝绳芯输送带技术条件》标准。 相似文献
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研制钢丝绳芯输送带粘合胶.粘合胶的优化配方为:NR 60,SBR 20,BR 20,炭黑N220 40,白炭黑15,氧化锌 5,硬脂酸 1,松焦油 7,防老剂4010NA/BLE-C 1/1.5,粘合剂RS/A 3/2.5,硼酰化钴 2.2,硫黄2.5,促进剂CZ 1.2.优化配方胶料综合性能良好,粘合性能优异,能够满足钢丝绳芯输送带使用要求. 相似文献
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研究镀铜钢丝帘线作为输送带骨架材料的粘合胶配方.结果表明,间-甲-白-钴体系能够增大镀铜钢丝帘线与橡胶间的粘合强度.确定最终镀铜钢丝帘线骨架输送带粘合胶配方为:NR 30,SBR 70,炭黑N330 45,白炭黑 15,氧化锌 9.5,硬脂酸 1,芳烃油 4,防老剂4010NA/BLE-C 2.5,粘合剂RF 3.6,粘合剂RA 2.4,硼酰化钴 1.2,硫黄 2.7,促进剂NOBS 1.该优化配方胶料邵尔A型硬度为70度,150 ℃×150 min老化前后的钢丝帘线抽出力分别达到1 260和1 185 N. 相似文献
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Xianguo Li Hangqi Jiang Houbiao Long 《Journal of Adhesion Science and Technology》2018,32(20):2268-2281
The splice is the weakest part of the entire steel cord conveyor belt. And it occurs steel cord twitch fault frequently. If this fault cannot be dealt with timely and accurately, broken belt accidents would be occurred that affecting the safety of production seriously. In this paper, we investigated the different cord pitch pullout of the steel cord conveyor belt splice by using ABAQUS. The finite element model of the ST630 type steel cord conveyor belt was established, same as to the standard of the experimental sample. The pullout force of length 50.0, 70.0, 80.0 and 100.0 mm single steel cord impacted at steel cord conveyor belt splice was numerically computed respectively. The finite element model consists of rubber, steel cord and failure unit. Failure unit is used to simulate the bonding relationship between steel cord and rubber. Mooney-Rivlin hyper-elastic model for rubber was employed in the numerical simulations. Typical results obtained have been validated by experimental result and the relative error between simulation results and experimental results is within 10%. Simulations were also done for cord pitch of 4.0, 4.5, 6.0, 7.0 and 8.0 mm to study its effect on the pullout force of steel cord conveyor belt splice. The variation of cord pitch at normal impact was found to have influence as long as the cord pitch was different. It provides us the numeric value of the pullout force with the different cord pitch, and conducts us selecting the correct steel cord configuration spacing for the steel cord conveyor belt splice, as well for the steel cord conveyor belt. This is an efficient way for avoiding the steel cord twitch fault and the broken belt accident, while ensuring their high reliability and service life. 相似文献
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论述了长距离钢绳芯胶带输送机的小时输送能力、最大张力、带强、轴功率、动载最大张力及安全系数、电机过载、翻带区长度、四弧段半径等问题的计算或校验方法。该方法适用于各种长度、各种类型的钢绳芯胶带输送机,在晋宁磷矿的工程设计中也得到了证实。 相似文献
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针对目前钢绳胶带检测现状与存在的问题,基于X射线成像原理,进行钢绳胶带在线监测系统的应用研究,进一步提高钢绳胶带探伤的准确性和可靠性,保证胶带安全运行,并降低了因频繁更换皮带增加的成本。 相似文献