详细介绍: 农机尼龙塑料齿轮力天时刻准备着为您服务
          整体接头系列异形高压整体接头和焊接接头品种齐全,包括Y形、L形、长半径弯头、T形、十字形、岐管形、鱼尾形七种,规格2″~4″,压力21MPa~140MPa(3000psi~20000psi)。整体接头毛坯采用高强度合金钢模锻成型,并经过整体热处理,不仅提高了产品的承压强度,还延长了使用寿命,而且外表简洁,端头有由壬连接,便于现场与各种压裂固井设备连接。端头焊接接头所用材料及焊接坡口设计均符合API6A规范。          玻璃化转变温度是聚合物结晶的下限温度。与尼龙6等其他聚酰胺不同的是,尼龙11在快速冷却后,从DSC谱图上反映不出玻璃化转变和冷结晶的过程,而对于尼龙6来说则存在这些过程。Lord[17]在解释这种现象时认为,尼龙11中的NH基团可以完全形成氢键,故结晶速度较快,在冷却前已全部结晶,而尼龙6由于NH形成的氢键不完全,仍有未形成氢键的NH存在,结晶速度不如尼龙11快,在淬火过程中,来不及结晶则在加热时出现冷结晶过程。            农机尼龙塑料齿轮力天时刻准备着为您服务沉淀式离心机 主要由锥形滚筒、输送器和变速器组成。输送器通过变速器与锥形滚筒相连,二者转速不同。多数变速器的变速比为80:1,即滚筒转80圈,输送器转1圈。分离原理是:待处理的加重泥浆用水稀释后,通过空心轴中间的一根固定输入管、输送器上的进浆孔,进入由锥形滚筒和输送器蜗形叶片所形成的分离室                    光导纤维 有尼龙11及尼龙共聚物涂层的光导纤维可减少光传导损失。军用产品 尼龙11具有低吸水性和良好的尺寸稳定性,以铜粉填充可做训练子弹。热恢复制品(heat-recoverable) 尼龙11在不饱和交联剂(triallyl isocyanurate)存在下,用离子束辐射交联,具有独特的热恢复性能。 5 我国尼龙11研究前景展望                     农机尼龙塑料齿轮力天时刻准备着为您服务直径比以往极细纤维还小两位数的纳米级单丝结构的"纳米纤维"新技术,通过控制纳米构造技术达到纤维细度的极限。东丽化学公司称,该公司利用这项新技术已经开发直径为10μm的单丝140万根以上所构成的纳米尼龙纤维。这种纤维与以往产品进行比较,表面积是过去产品的1000倍左右,具有很高的表面活性。   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        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3.2 尼龙11的热性能尼龙11的热性能及熔融性与其他聚酰胺不同[16],在180 ℃恒温下退火结晶的尼龙11,其熔融峰有两个,其中主熔融峰(190 ℃),而在其附近有一小的熔融峰(185 ℃),结晶退火时间越长,熔融峰则向高熔点方向移动,且小熔融峰逐渐变小消失,而主熔融峰逐渐增大。农机尼龙塑料齿轮力天时刻准备着为您服务 |