Scanning Operation:
Turn on the ultrasonic testing instrument and operate the instrument to make the probe scan the ship - plate steel. The scanning method can be manual point - by - point scanning or scanning by using an automatic scanning device. During manual scanning, the inspectors should move the probe slowly and steadily to ensure that each detection point is effectively covered, and pay attention to recording the position information of each detection point. For an automatic scanning device, it is necessary to pre - set parameters such as the scanning path and speed to ensure a comprehensive and uniform scanning of the ship - plate steel.
During the scanning process, the ultrasonic testing instrument will record in real time information such as the propagation time of ultrasonic waves in the ship - plate steel and the amplitude of the reflected waves. These raw data are the basis for subsequent analysis of the internal structure and mechanical properties of the ship - plate steel. For example, the length of the propagation time of ultrasonic waves can reflect the thickness of the ship - plate steel or whether there are defects inside; the change in the amplitude of the reflected waves may imply the inhomogeneity of the internal structure of the ship - plate steel or the existence of cracks and other defects.

Data Recording and Preliminary Analysis

Data Recording:
During the scanning process, it is necessary to record in detail the ultrasonic data of each detection point, including the propagation speed of ultrasonic waves, attenuation coefficient, amplitude of the reflected waves, and propagation time. These data can be stored in the storage device of the ultrasonic testing instrument itself or can be transferred to an external computer through the data transfer interface for storage and further processing. At the same time, record the position information of the detection points. For example, mark on the ship structure drawing or use a three - dimensional coordinate positioning system to determine the accurate position of each detection point so as to correspond the ultrasonic data with the specific position of the ship - plate steel later.

 

 

 

Preliminary Analysis:
The inspectors can conduct a preliminary analysis of the ultrasonic data on the spot. For example, observe the waveform of the reflected waves. If there are abnormal changes in the waveform, such as multiple reflected wave peaks or a messy waveform, it may indicate that there are defects inside the ship - plate steel. Meanwhile, compare the propagation speed and attenuation coefficient of ultrasonic waves at different detection points. If the propagation speed in a certain area is significantly lower than that in the normal area, or the attenuation coefficient is abnormally increased, this may mean that the material of the ship - plate steel in this area has changed, such as the internal structure becoming loose due to corrosion or fatigue. This preliminary analysis can help the inspectors to discover some obvious problem areas in time and provide the key areas of concern for the subsequent detailed analysis.

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our High Strength Shipbuilding Steel Plate, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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