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Date：2025-04-28 16:10:16
Author: DTI
Ding Testing & Inspection: Magnetic Particle Testing (MT), Unveiling Surface and Near-Surface Defects with Precision
Magnetic Particle Testing (MT) is a non-destructive testing technique based on magnetic principles, widely used for detecting surface and near-surface defects in ferromagnetic materials. By applying a magnetic field to the material and sprinkling magnetic particles on its surface, MT reveals defects through the accumulation of particles at the defect sites. Ding Testing & Inspection offers comprehensive MT services, combining efficiency, accuracy, and compliance with international standards to provide reliable assessments of material and structural integrity.
Service Introduction
Magnetic Particle Testing leverages the magnetic properties of ferromagnetic materials. When these materials are magnetized, any surface or near-surface defects will cause a distortion in the magnetic field, creating a "leakage field." Magnetic particles, when applied to the surface, are attracted to these leakage fields and accumulate at the defect sites, clearly indicating the location, shape, and size of the defects. This method is highly sensitive to defects such as cracks, porosity, and inclusions in ferromagnetic materials, especially for detecting minute defects on the surface and near-surface.
Industry Challenges
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Ensuring the structural integrity of ferromagnetic materials: Ferromagnetic materials are widely used in industries such as mechanical manufacturing, aerospace, and automotive. Surface and near-surface defects in these materials can lead to structural failure and potential safety incidents.
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Accurate detection of surface and near-surface defects: Traditional visual inspection methods often fail to detect minor surface cracks and near-surface defects. MT effectively addresses this limitation.
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Meeting stringent industry standards: Industries such as aerospace, automotive, and energy have high quality requirements for ferromagnetic materials. MT meets these strict standards to ensure product compliance.
Service Scope
Ding Testing & Inspection offers a range of MT services using advanced techniques and methods, including:
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Wet Magnetic Particle Testing: Using magnetic particle suspensions (typically water-based or oil-based) for detection. This method is suitable for detecting fine cracks and surface defects, offering high sensitivity.
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Dry Magnetic Particle Testing: Applying dry magnetic particles directly to the surface. This method is suitable for detecting larger defects and rough surfaces, and is easy to operate.
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Fluorescent Magnetic Particle Testing: Using fluorescent magnetic particles that emit light under ultraviolet illumination, significantly enhancing the visibility of defects, especially for detecting minute defects.
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Multi-directional Magnetization: Applying magnetic fields in multiple directions to ensure comprehensive coverage of the inspection area, effectively detecting defects in various orientations.
Application Fields
Magnetic Particle Testing is widely applied in the following areas:
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Aerospace: Inspecting critical components such as aircraft engine blades and landing gear for surface and near-surface defects to ensure flight safety.
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Automotive Manufacturing: Detecting surface cracks and near-surface defects in automotive parts, such as crankshafts, connecting rods, and brake discs, to enhance vehicle reliability and safety.
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Mechanical Manufacturing: Inspecting various mechanical parts for surface and near-surface defects, such as gears and shaft components, to ensure machining quality and performance.
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Energy Industry: Inspecting critical components of power generation equipment and pressure vessels for surface and near-surface defects to ensure safe operation.
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Construction Industry: Inspecting welds and connectors in steel structures for surface and near-surface defects to ensure the quality and safety of construction projects.
Testing Standards
Ding Testing & Inspection strictly adheres to international and domestic standards to ensure the accuracy and reliability of our MT services, including but not limited to:
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ISO 9934-1: Non-destructive testing - Magnetic particle testing - Part 1: General principles
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ASTM E1444: Standard Test Method for Magnetic Particle Testing
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GB/T 15822.1: Non-destructive testing - Magnetic particle testing - Part 1: General principles
By following these standards, we can address the following technical issues:
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Detection of surface and near-surface defects such as cracks, porosity, and inclusions in ferromagnetic materials
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Assessment of surface quality and machining processes of materials
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Ensuring the structural integrity and safety of critical components
Choose Ding Testing & Inspection, and You Will Gain
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High-sensitivity defect detection: Our MT techniques can detect minor surface and near-surface defects, ensuring reliable inspection results.
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Professional technical support and consulting services: Our team of experts provides comprehensive support to help you interpret the results and develop appropriate solutions.
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Customized testing solutions: We offer personalized testing plans tailored to your specific needs, ensuring that the inspection results meet your requirements.
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Efficient testing services: Our streamlined processes and professional team can complete inspections quickly, reducing your inspection cycle time.
About Ding Testing & Inspection
Founded by seasoned industry professionals, Ding Testing & Inspection strictly follows international standards such as ISO/ASTM/ASME/JIS/GB/EN/API for testing, inspection, appraisal, and evaluation. We possess world-class non-destructive testing laboratories and have earned recognition from numerous top-tier international and domestic clients. In the field of non-destructive testing, we have a good reputation and client recognition.
Contact Us
Contact Ding Testing & Inspection immediately, and let our professional team provide expert-level solutions for your Magnetic Particle Testing needs. Whether for technical consultation or on-site inspection, we will offer the highest quality service experience.
Get Your Free Testing Plans and Quotation
Ask professional engineers for on-line service, and receive testing proposals within 2 hours.
Six Reasons to choose DTI
Complete qualifications
Complete range of qualification certificatesDTI has CMA, CNAS and other qualifications, including China's domestic and global relatively comprehensive leading qualifications at metal materials and corrosion test field. We can provide authoritative reports of national standard and industrial standard.
Viewing CertificatesProfessional team
70% professional and technical personnelDTI has a professional testing team, with 70% of professional technicians and 70% of undergraduate degree or above. From drafting proposals to sample analysis issuance, we are professional at each step to ensure the precision.
Learn MoreAdvanced Equipment
400 units with a 92% import ratioDTI has invested affluent budgets onto 450 sets of advanced large and medium-sized testing equipment. 92% of the equipment are imported from U.S., Germany, Switzerland, installed at scores of labs cover an area of 8,000 m2 and services cover 1000+ segments.
For DetailsAccurate Data
The accuracy rate of the inspection reaches 99%our professional technical testing team, advanced equipment, large number of databases, and solid implementation of lab quality control, DTI guarantees the overall accuracy rate of the reliable analysis data up to 99%.
consult NowComprehensive Service
One-stop tracking serviceDTI services cover the whole industries and provides the optimal solutions and technical support in terms of cycle time,cost-saving and qualifications based on numerous indicators, E2E supply chain solutions, all-round multi-dimensional product analysis.
Learn MoreCustomer Service
Regular return visits can be re-examinedDTI 24h*7 service (China) is available so that you could reach us anytime, anywhere. We also have an Emergency Service Access in case of special circumstance. DTI visits their customers regularly, and the questionable items in issued reports can be redone free of charge.
Online ServiceOnly Four Steps to Get Your Reports
Issues You May Care About
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A. DTI has a comprehensive range of instruments and equipment, as well as numerous engineers with over 10 years of experience.
B. We offer consultative services with a broad industry scope, tailoring solutions to meet customer needs.
C. We provide one-stop technical services in the environmental field, with dedicated personnel throughout the process, allowing customers to stay informed about the progress of their reports in real time.
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A. Normally, we will issue a report within 5-7 working days after receiving the samples.
B. To expedite the report issuance and eliminate extensive manual processing steps, DTI employs collaborative efforts across multiple departments and utilizes automated sample handling technology for certain types of samples, making the reports faster and more accurate.
C. For clients who urgently need the report, expedited services are available.
D. The report issuance time varies depending on the specific type of product, and you can consult with our online customer service for details.
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DTI’s test data obtained from experiments are all true and valid, and will not maliciously alter or forge test data. The test reports issued by DTI are authoritative and credible and are recognized both in China and other countries.
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The specific standards vary depending on the testing items. Please consult online customer service for details.
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Our company promises that all test data obtained from the experiment are true and valid, and will not maliciously alter or falsify the test data. If any customer has any questions about the test data obtained from the experiment, please contact our technical staff, and our company will conduct a free re-inspection for the customer. If the data obtained after the replicated test are the same as the results of the initial test, our company will not change the test results. If they are different from the results of the initial test, our company will conduct multiple experiments on the samples during this period, and finally determine the results. Stable experimental data is used as the final test result.
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Due to the large amount of standard information and other reasons, many customers may not know what items need to be tested. In this case, we could provide customers with recommendations for related projects, but the customers are required to provide the following information:
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LEARN ABOUT DING TESTING & INSPECTION
DTI has served thousands of entities, including numbers of Fortune Global 500 enterprises. DTI always conveys trustfulness to the quality life ubiquitously.
DTI is devotional on providing services for metal comprehensive testing. Among the testing services, DTI has more advantage at implementation of various corrosion resistance tests for different type of materials. The range of testing capability includes the analysis of metal composition and metal metallographic, mechanical performance and metal corrosion resistance testing, failure analysis, R & D analysis, and product quality assessment etc.
DTI has been awarded the conformity of assessment from ISO/IEC17025, ISO9001, GB/T28001/OHSAS18001, GB/T14001/ISO14001, CNAS and CMA Certification.
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Industrial Fields
- 200Nos.
Large Equipment
- 3000㎡
Lab Area Size
- 1000Nos.
Customers Served
To be an influential, authoritative, third-party testing organization in China.
We provide professional inspection, testing, analysis for upstream and downstream supply chain of various industries, which covers industrial manufacturing, chemicals, offshore engineering, oil & gas, wind power, hydrogen energy, nuclear power, automotive structures, metals and minerals, equipment manufacturing, construction machinery, aerospace, etc.
We are committed to providing impartial, fair, accurate, and timely professional testing services nearly 20 provinces in China.
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