会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明公开
    • A method for connecting a plastic pipe end to a plastic welding sleeve
    • Verfahren zur Verbindung eines Kunststoffrohrendes mit einer schweissbarenKunststoffhülse。
    • EP0258827A1
    • 1988-03-09
    • EP87112489.7
    • 1987-08-27
    • TARCO ENERGI A/S
    • Larsen, ChristianMunck, Michael
    • F16L47/02B29C65/22
    • F16L59/20B29C44/1295B29C65/02B29C65/344B29C65/3452B29C65/3468B29C65/3476B29C65/72B29C66/1122B29C66/5221B29C66/5229B29C66/53241B29C66/71B29C66/72321B29C66/727B29C66/73161B29C66/832B29C66/91313B29C66/91315B29C66/91411B29C66/91443B29C66/91643B29C66/91653B29C66/91655B29C66/919B29C66/91951B29C66/94B29C66/9592B29C66/96B29K2023/06B29K2023/0691B29K2075/00B29K2305/12B29L2009/003B29L2023/225F16L47/03
    • By a method for connecting a plastic pipe end (4 and 4ʹ, respectively) to a plastic welding sleeve (1) a heater (3) of annealed expanded metal is initially mounted on the pipe end (4 and 4ʹ, re­spectively), whereafter the welding sleeve (1) is pushed over said pipe end. Subsequently the plastic welding sleeve (1) is pressed downwards to abut the heater (3) in question by means of a known clamping device and heat supplied from the outside. The heater (3) is then connected to a welding generator and a microprocessor measuring and controlling the current through the heater and the voltage across the heater (3) during the entire heating phase. During the first phase of the heating process the heater (3) is supplied with a constant current, and when the microprocessor registers that the increase in voltage per time unit has dropped below a prede­termined level corresponding to a specific temper­ature, said microprocessor computes the ohmic re­sistance of the heater corresponding to a desired predetermined final welding temperature. This final welding temperature is kept constant for a period thereafter.
      In this manner a method is provided for connecting a plastic pipe end to a plastic welding sleeve by means of an extensible heater. During the fully automatized welding operation this heater is situat­ed in the welding area, whereby a uniform distri­ bution of heat is ensured and results in a welding of high strength and quality.
    • 通过将塑料管端(4和4'分别)连接到塑料焊接套筒(1)的方法,退火的多孔金属加热器(3)最初安装在管端(4和4')上, 之后焊接套筒(1)被推到所述管端上。 随后,塑料焊接套筒(1)被向下按压以通过已知的夹紧装置和从外部供应的热量来邻接所讨论的加热器(3)。 然后,加热器(3)连接到焊接发生器和在整个加热阶段期间测量和控制通过加热器的电流和加热器(3)两端的电压的微处理器。 在加热过程的第一阶段期间,加热器(3)被提供恒定电流,并且当微处理器记录每时间单位的电压增加已经降到低于对应于特定温度的预定电平时,所述微处理器计算欧姆 对应于期望的预定最终焊接温度的加热器的电阻。 此后的最后焊接温度保持恒定。 以这种方式,提供了一种通过可扩展加热器将塑料管端连接到塑料焊接套筒的方法。 在完全自动化的焊接操作期间,该加热器位于焊接区域中,从而确保均匀的热分布,并且导致高强度和高质量的焊接。