When did utmt mining machinery benefit start

1.

1. UT: ultrasonic test ultrasonic flaw detection is a method to check the defects of parts by using the characteristics of reflection at the interface edge when the ultrasonic energy penetrates into the depth of metal materials and enters into another section from one section. When the ultrasonic beam passes from the probe head to the metal from the surface of parts, the reflection wave will occur respectively when it meets the defects and the bottom of parts, The position and size of the defect can be judged according to the pulse waveform formed on the screen

these methods are different detection means, which should be studied separately. They have different theoretical basis, different detection principles, different detection methods, and different detection effect, which are complementary to each other

< H2 > reference: Network - Ultrasonic Testing Network - magnetic particle testing network - Radiographic Testing Network - Penetrant testing network - eddy current testing

2. There are a total of 11 main players on the court, spending nearly 7000-8000 gold coins. In addition to the right winger's all-round La Liga players, the team is composed of competitive players with high quality and low price, the middle team's Hummers and several Barcelona Real Madrid's water dispenser managers. The most expensive main players are Tello and golden coentran, who each spend 1000 gold coins, The others are 800 gold coins or less. Each position is also equipped with at least one substitute, most of whom are Spanish players in La Liga. The total cost of a dozen substitutes is about 5000 gold coins, which is enough for rotation
the team takes Gaby, the Atletico Madrid midfield, as the core of attack and defense conversion, and the attack centers on Tuo Niu. Although Tuo Niu is not as brave as she was then, it is enough to serve as a fulcrum in the low-level League. At present, the team ranks first in both goals and assists, and the achievement of 50 goals points to Da Tuo Niu.

3. Examination of nondestructive testing engineering
NDT Engineer refers to the engineering and technical personnel who have one or more inspection qualifications, such as ultrasonic, radiographic, magnetic powder, penetration and eddy current, and carry out defect inspection and inspection on materials, components, parts and equipment on the basis of not damaging the workpiece. They have rich theoretical and practical experience and can undertake technical guidance<

first of all, you need to become an assistant engineer. You can apply directly after one year of undergraate work, two years of junior college work, and then you can take the intermediate exam after two years of work< Job requirements:
1. College degree or above, majoring in NDT, materials, engineering, English reading and writing, good computer skills
2. Hold the first-class certificate of UT, MT, Pt and RT recognized by the state, be familiar with the theoretical knowledge of NDT, and be able to work independently
3. More than 1 year continuous NDT working experience, familiar with NDT working process, able to skillfully operate NDT equipment, guide technicians to carry out inspection, maintain equipment, find equipment faults in time, and be able to eliminate some basic faults
4. Good health, dedication, overall concept and cooperation consciousness, good organization and coordination ability and team spirit.

4.

RT: radiographic inspection

ut: ultrasonic inspection

MT: magnetic particle inspection belongs to non-destructive inspection

5. What are UT and MT in NDT? UT: ultra sonic test
MT: magnetic test
magnetic particle inspection has another name: MPI, that is,
magnetic particle inspection
in addition, NDT is non destructive testing in English. Non destructive testing refers to the physical or chemical methods, with the help of modern technology and equipment, to analyze the internal and surface structure, properties and mechanical properties of the test piece by using the changes of thermal, acoustic, optical, electrical, magnetic and other reactions caused by the abnormal internal structure or defects of the material, on the premise of not damaging or affecting the service performance of the tested object and the internal organization of the tested object State and defect type, nature, quantity, shape, location, size, distribution and change of inspection and testing method [1]. Nondestructive testing is an indispensable and effective tool for instrial development. To a certain extent, it reflects the instrial development level of a country. The importance of nondestructive testing has been recognized, including radiographic testing (RT), ultrasonic testing (UT), magnetic particle testing (MT) and liquid penetrant testing (PT). Other nondestructive testing methods include eddy current testing (ECT), acoustic emission testing (AE), thermal imaging / infrared (TIR), leakage test (LT), AC field measurement technology (acfmt), magnetic flux leakage testing (MFL), far field testing (RFT), ultrasonic time difference of diffraction (TOFD), etc.

6. UT is ultrasonic testing and MT is magnetic particle testing. UT uses ultrasonic testing to detect the internal defects of metal through reflected wave, and MT uses magnetic powder to detect the surface defects of metal through magnetic pole. Level 2 qualification is the qualification that can be tested.

7. Generally speaking, the first level examination is relatively simple. You can basically pass the theory if you look at the teaching materials; Theory is generally single choice, multiple choice, judgment can account for about 60 points, discussion question 20 points, general 5 to calculation question 2 10 points, practice is to give you instrument or material, make test results on standard test block or test board, for MT PT test results require accuracy is not very high, make defects, and then issue test records and reports, RT practice is also relatively simple, The first one is to look at the negatives first. You have to look at at at least 1000 negatives in order to have a more intuitive impression. Otherwise, you will be directly blinded ring the exam. Everything is defective. When you pass through the negatives, you should select the time according to the exposure curve. Generally, you need to add 5-10 seconds to this time, because the exam optics are relatively old, His energy is weakened. When developing the film, you only need to shake three times, so adding some time can at least ensure that the blackness meets the requirements. Ultrasonic practice is the most difficult, because you first have to understand the principle of ultrasonic and familiar with the instrument, and then you can make the test curve according to the standard, issue the record and report. In half an hour, you really have to do more, practice more, and the rest has no solution.

8. ASME Section V "nondestructive testing" seems to be it

9. The teaching materials used in the examination of the mechanical society are also those of quality inspection. Compared with the Quality Supervision Bureau, the examination of the mechanical society is much simpler and easier.