​ Ultrasonic Testing of Crane Track Shoe

Classification:Industry News Time:2024-05-28 09:18:16 View:88
Summary:Ultrasonic testing is currently the most frequently used and widely used non-destructive testing technology. By studying the interaction between ultrasonic waves and crane track pad materials and studying its transmitted and reflected waves, internal defects of crane track pads can be detected. Therefore, ultrasonic testing is an indispensable procedure in the track shoe production process....


1. What is Ultrasonic Testing of Crane Track Shoe?

Ultrasonic testing is currently the most frequently used and widely used non-destructive testing technology. By studying the interaction between ultrasonic waves and crane track pad materials and studying its transmitted and reflected waves, internal defects of crane track pads can be detected. Therefore, ultrasonic testing is an indispensable procedure in the track shoe production process.


2. Advantages of ultrasonic testing 

  • Non-destructive testing will not cause damage to the crawler crane track pads and save materials.

  • Detect whether there are pores and defects inside crawler crane track shoes and improve product quality.

  • Convenient and fast, improve labor productivity

  • Improve the process and be more environmentally friendly.


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3.Which production stage should UT be done?

First, a sand mold is made to cast the track shoe. After casting, an ultrasonic test is performed to check whether the track shoe has pores. Then the crane track shoe is tempered. After the overall tempering, an ultrasonic test is performed to check whether the internal structure of the track shoe is intact. Finally, after surface heat treatment, painting, and inspection, the track shoe is packaged.


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4. Why should ultrasonic testing be performed on crane track shoes? 

  • Track pads mainly use the traditional production process of casting. During the casting process, the original air in the mold expands due to heat or there is a lot of moisture in the mold that generates water vapor when heated. During the cooling and solidification process of the liquid metal, the gas cannot be precipitated, so in the Air holes are generated in the cooled track pads. By studying the ultrasonic projection and reflected waves, it can reflect whether there are defects in the internal structure of the track pads.

  •  Heat treatment can change the physical and mechanical properties of metal materials, and heat treatment of track pads can significantly improve the toughness and hardness of the track pads. However, the heat treatment process will also cause defects inside or on the surface of the track pads. In order to ensure the quality of the track pads, it is also necessary to conduct ultrasonic waves after heat treatment.


In short, ultrasonic testing of crane track shoes after casting and heat treatment can promptly detect internal structural defects of the track shoes, extend the service life of the track shoes in harsh working environments such as mountains and swamps, and avoid breakage due to violent impacts. Each crawler crane track shoe of VM has undergone meticulous ultrasonic testing by professionals to ensure that we provide you with high-quality track shoes!

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