1.Product Introduction
The product is designed based on the electromagnetic induction principle, it enables real-time, high-precision and non-destructive testing of the zinc coating weight of steel wires.
One sensor has two detection channels. The above detection channel is used to establish standard data with standard wire samples, and the data can be exported to database for future use. It supports the online or offline use of reference standard samples.
With the standard data established, the below channel detects and figures out the zinc weight of the same specifiction products in real-time. Based on the sensor data, the control system can execute closed-loop control.
2.Product Selection
| Model | Sensor Aperture | Product Application |
| ZR2008P-ZNT-12-F | 12mm | Applied on galvanizing line for monitoring or controlling. |
| ZR2008P-ZNT-15-F | 15mm |
3.Product Advantages
| Our product advantages are as follows: | |
| 1、high detection accuracy: | The sensor delivers high detection accuracy, with a deviation within ±20 g/m² between on-site measurement and laboratory zinc coating analysis. Equipped with an automatic temperature compensation function, Tianrun sensors achieve higher detection accuracy. |
| 2、simple calibration : | Sensor calibration is simple and convenient, which can be completed using three groups of steel wire samples with different zinc coating weights. |
| 3、formula database: | Calibration data can be uploaded to the host computer in the form of formulas, and formula upload and download are available for each working station. Operators could call up corresponding formulas when producing steel wires of different specifications, meeting the demand for diverse production orders on site. |
| 4、excellent anti-interference and stability | The sensor features strong anti-interference capability and excellent stability. It is minimally affected by common-mode interference caused by component aging after long-term operation. |
4.Application Method
| Offer two primary application methods: Real-time Comparison Method and Calibration Method | ||
| Method | Real-time Comparison Method | Calibration Method |
| Content | A standard sample steel wire should be fixed through the upper channel of the sensor. During production, the sensor conducts real-time comparison between the currently produced steel wire and the standard sample steel wire. Accordingly, the galvanized coating weight level and deviation degree of the in-production steel wire relative to the standard sample can be determined. | Standard sample wires, high-zinc-coating sample wires and low-zinc-coating sample wires are selected in the early stage through data sampling and steel wire sample testing. The sensor is calibrated with these three types of sample wires. After calibration, the detector can accurately calculate the galvanized coating weight of steel wires during production. |
| Advantages | Easy installation and rapid implementation; Switch the standard sample wires in the upper channel, and the production specifications quick shift could be realized. | The calibration data could be saved as formulas in the Data Station. Download the formulas to the sensors, and the production specifications quick shift could be realized. |
5.Automatic Zinc Coating Control System
| Introduction：
The Automatic Zinc Coating Control System takes the galvanized coating weight detector as the core, and is equipped with PLC, data station, proportional valves and other components. Based on the coating weight fed back by the detector, the system adjusts nitrogen pressure in real time to realize closed-loop control of the zinc weight. It also features data storage, zinc weight curve display, fault alarm and other functions. |
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