PFTL 101A 1.0KN ABB 3BSE004166R1 横向测量 压磁式压头 PFTL101

ABB张力计Millmate带钢张力测量系统概述

ABB张力计Millmate带钢张力测量系统具有超高的抗冲击能力和过载能力,抗疲劳能力,长期稳定性,无可动部件,对现场电气信号干扰不敏感等特点.减少不可预测的故障所造成的轧机停机,提高产量.

ABB张力计Millmate带钢张力测量系统用于测量板带张力,以确保板带张力在加速和减速过程中在允许范围内保持恒定。压头安装在导向辊的两端。一套完整的系统包含：

• 两只abb测力压头
• 用于给压头供电和信号处理的控制单元

abb测力压头是根据ABB的专利—磁致弹性技术，也就是压磁原理制造的。控制单元向压头提供激磁电源，处理由压头输出信号并将测量值传输给外接系统。与其它系统通讯的方式可以是模拟量输出，高速现场总线等。PFEA111／PFEA112控制单元可以由触摸键进行设置及调试。由于拥有友好的用户界面而非常易于实现这些功能。测量值在PFEA111／PFEA112显示，通过模拟量输出与外部显示或其他外围设备通讯。状态或报警信息在PFEA111／PFEA112控制单元上显示或经ProfisBus DP(仅对PFEA112有效)输出。

ABB张力计Millmate带钢张力测量-压头测量原理

压磁式传感器是利用磁性材料在机械力作用下导磁率发生变化的原理工作的。这种传感器由整块不锈钢制成，在不锈钢体上冲有四个孔。通过这四个孔缠绕有两组线圈，它们互成一定的角度。当在初级线圈中通以交变电流时，初级线圈中会产生磁场。因为初级和次级两组线圈是互成一定角度的，所以只要传感器上没有负载，次级线圈中就不会产生磁场。当在传感器的测量方向加以机械力时，初级线圈中的磁场传播方向发生变化，将次级线圈包容进了磁场。由于次级线圈中的磁场发生了变化，因此在该线圈中产生了感应电势。控制单元会将这个感应电势转换成一个与被测力对应成比例的直流电压信号。

ABB张力计Millmate带钢张力测量-压磁式压头的特点

压头由一整块不锈钢加工制成。只对测量方向的力敏感。其他方向的力由于压头的特殊结构设计而被压头吸收，从而对测量方向的力无任何影响。

• 宽测量范围：测量范围为40:1，最大为额定量程的200%，最小为额定量程的5%。
• 可重复的大过载容量：10倍于额定量程的电气过载能力，30余倍于额定量程的机械过载能力，没有塑性形变和疲劳现象。
• 无需标定
• 无物理漂移
• 大功率传感器输出信号（100mV):大输出信号且采用载频，抗干扰性能优异。
• 低阻抗输出（10欧姆）：压头具有更好的抗噪性，输出信号对绝缘状况不敏感，更适合轧机的恶劣使用环境。压头保护等级为IP65，在有飞溅的现场可正常运行。

ABB张力计Millmate带钢张力测量-系统应用

• 连续退火线 – 加热炉部分
• 冷连轧轧机 – 入口张紧辊
•  退火-酸洗线 – 转向辊
• Sendzimir轧机
• 3机架冷连轧机 – 中间机架

ABB张力计Millmate带钢张力测量系统给用户带来的好处

• 提高产品质量
• 减少不可预测的故障所造成的轧机停机，提高产量
• 提高轧机的轧制速度

PFTL101A-0.5KN

ABB Tensiometer Millmate Strip tension measurement system overview
The ABB Tensiometer Millmate strip tension measuring system has the characteristics of ultra-high impact and overload resistance, fatigue resistance, long-term stability, no moving parts, and insensitivity to field electrical signal interference. Reduce mill downtime caused by unpredictable failures and increase production.

The ABB Tensiometer Millmate Strip tension measuring system is used to measure strip tension to ensure that strip tension remains constant within the allowable range during acceleration and deceleration. The indenter is installed at both ends of the guide roller. A complete system includes:

Two abb force measuring heads
A control unit for powering and signal processing the indenter
The abb force measuring indenter is manufactured according to ABB’s patented magnetoelastic technology, which is the piezomagnetic principle. The control unit provides excitation power to the indenter, processes the output signal from the indenter and transmits the measured value to the external system. Communication with other systems can be analog output, high-speed fieldbus, etc. The PFEA111 / PFEA112 control unit can be set up and debugged by touch keys. These features are very easy to implement due to the friendly user interface. The measured values are displayed in the PFEA111 / PFEA112 and communicate with external displays or other peripherals via analog output. Status or alarm information is displayed on the PFEA111 / PFEA112 control unit or output via the ProfisBus DP(valid for PFEA112 only).

ABB Tensiometer Millmate Strip tension measurement – Indenter measurement principle
Piezomagnetic sensor is based on the principle that the magnetic permeability changes under the action of mechanical force. The sensor is made of a single piece of stainless steel with four holes punched in the stainless steel body. Through these four holes are wound two sets of coils, which are at an Angle to each other. When an alternating current is passed through the primary coil, a magnetic field is generated in the primary coil. Because the primary and secondary coils are at an Angle to each other, no magnetic field is generated in the secondary coil as long as there is no load on the sensor. When a mechanical force is applied to the measurement direction of the sensor, the magnetic field propagation direction in the primary coil changes, incorporating the secondary coil into the magnetic field. Because the magnetic field in the secondary coil changes, an induced potential is created in that coil. The control unit converts this induced potential into a DC voltage signal proportional to the measured force.

ABB Tensiometer Millmate Strip tension measurement – Piezomagnetic indenter features
The indenter is made of a single piece of stainless steel. It is only sensitive to the force in the measured direction. Due to the special structural design of the indenter, the force in other directions is absorbed by the indenter, thus having no effect on the force in the measured direction.

Wide measuring range: The measuring range is 40:1, the maximum is 200% of the rated range, the minimum is 5% of the rated range.
Repeatable large overload capacity: 10 times the rated range of electrical overload capacity, more than 30 times the rated range of mechanical overload capacity, no plastic deformation and fatigue phenomenon.
No calibration required
No physical drift
High-power sensor output signal (100mV): large output signal and carrier frequency, excellent anti-interference performance.
Low impedance output (10 ohms) : the indenter has better noise resistance, and the output signal is not sensitive to the insulation condition, which is more suitable for the harsh operating environment of the mill. Indenter protection level is IP65, which can operate normally in the field of splash.
ABB Tensimeter Millmate Strip tension measurement – System applications
Continuous annealing line – heating furnace part
Cold tandem mill – inlet tensioning roll
Annealing – pickling line – steering roll
Sendzimir rolling mill
3 stand Tandem cold rolling mill – middle stand
ABB Tensimeter Millmate Strip tension measurement system brings benefits to users
Improve product quality
Reduce mill downtime caused by unpredictable failures and increase production
Increase the rolling speed of the mill