|
BIT Inspection Technology is committed to provide quality & certification for aspiring individuals and organization sponsored employees in various NDT methods and welding Inspection techniques.
|
| CONSULTANCY FOR DEVELOPING WELDING PROCEDURES (PQR/WPSI): |
|
We provide consultancy in developing. Welding Procedure Qualification Record (PQR) Establishing Welding Procedure Specification (WPS)Performing Welding Qualification Test (WQT)
|
| NDT LEVEL – III CONSULANCY: |
|
We provide NDT Level III consultancy in setting up NDT procedures and developing NDT awareness for employees in the organization which through reduction in rework and repair works.
|
| NDT TRAINING & CERIFICATION AND CONSULTANCY SERVICES: |
|
| NDT Courses Available |
| Training &Certification |
Level |
Initial Qualification |
Duration |
| NDT Awareness |
N/A |
Diploma/ Graduate/ Post Graduate/ HSC / SSC/ |
One Week |
| Radiographic Testing (RT) |
I/II |
One Week |
| Ultrasonic Testing (UT) |
I/II |
One Week |
| Magnetic Particle Testing (MT) |
I/II |
Three Days |
| Dye Penetrant Testing (PT) |
I/II |
Two Days |
| Radiographic Film Interpretation |
I/II |
One Week |
| Ultrasonic Testing (TKY) |
I/II |
One Week |
| Certified Welding Inspector Training program |
N/A |
One Week |
|
|
| Welding Inspection Training by Welding & Material Engineering Professional: |
|
| Training Program |
Initial Qualification |
Duration |
| Welding inspection Technology |
Diploma/
Graduate/
Post Graduate/
HSC / SSC |
Two
Weeks |
| Performing Welding procedure Qualification (PQR) |
| Performing Welder Qualification Test (WQT) |
| Preparing Welder Procedure Specification (WPS) |
| Non-destructive & Destructive Testing involved in the Welding |
| Interpretation of code & |
Interpretation of Code & Specification like ASME Sec ll.V.Vlll.Xl.B31.3AWS D1.1.API 1104etc…
|
| Practical Demonstration of all the above activities |
| ACCOMODATION: BIT Inspection Technology has negotiated long term Rates for students visiting Institute. |
|
|
| We provide trained skilled NDT-Technicians /Inspector /Supervisor / Engineers and can fine tune to suit the specific job requirement for the following organization / industry Casting & Forging Industry |
 |
Manufacturing Equipments (Pressure Vessel /valves Etc) |
|
Construction Industry (Welding & Fabrication) |
|
Oil & Gas industry
|
|
Petroleum & Refinery Industry |
|
Aircraft Industry |
|
Shipping industry |
|
Automobile Industry etc... |
| |
|
|
| Magnetic Particle Inspection |
|
In theory, magnetic particle inspection (MPI) is a relatively simple concept. It can be considered as a combination of two nondestructive testing methods: magnetic flux leakage testing and visual testing. Consider the case of a bar magnet.
|
 |
| It has a magnetic field in and around the magnet. Any place that a magnetic line of force exits or enters the magnet is called a pole. A pole where a magnetic line of force exits the magnet is called a north pole and a pole where a line of force enters the magnet is called a south pole. |
 |
When a bar magnet is broken in the center of its length, two complete bar magnets with magnetic poles on each end of each piece will result. If the magnet is just cracked but not broken completely in two, a north and south pole will form at each edge of the crack. The magnetic field exits the north pole and reenters at the south pole. The magnetic field spreads out when it encounters the small air gap created by the crack because the air cannot support as much magnetic field per unit volume as the magnet can. When the field spreads out, it appears to leak out of the material and, thus is called a flux leakage field.
When a bar magnet is broken in the center of its length, two complete bar magnets with magnetic poles on each end of eachpiece will result. If the magnet is just cracked but not broken completely in two, a north and south pole will form at each edge of the crack. The magnetic field exits the north pole and reenters at the south pole. The magnetic field spreads out when it encounters the small air gap created by the crack because the air cannot support as much magnetic field per unit volume as the magnet can. When the field spreads out, it appears to leak out of the material and, thus is called a flux leakage field.
|
|
| Ultrasonic Testing (UT) uses high frequency sound energy to conduct examinations and make measurements. Ultrasonic inspection can be used for flaw detection/evaluation, dimensional measurements, material characterization, and more. To illustrate the general inspection principle, a typical pulse/echo inspection configuration as illustrated below will be used. |
 |
A typical UT inspection system consists of several functional units, such as the pulser/receiver, transducer, and display devices. A pulser/receiver is an electronic device that can produce high voltage electrical pulses. Driven by the pulser, the transducer generates high frequency ultrasonic energy. The sound energy is introduced and propagates through the materials in the form of waves. When there is a discontinuity (such as a crack) in the wave path, part of the energy will be reflected back from the flaw surface. The reflected wave signal is transformed into an electrical signal by the transducer and is displayed on a screen. In the applet below, the reflected signal strength is displayed versus the time from signal generation to when a echo was received. Signal travel time can be directly related to the distance that the signal traveled. From the signal, information about the reflector location, size, orientation and other features can sometimes be gained.
Ultrasonic Inspection is a very useful and versatile NDT method. Some of the advantages of ultrasonic inspection that are often cited include: |
|
It is sensitive to both surface and subsurface discontinuities. |
|
The depth of penetration for flaw detection or measurement is superior to other NDT methods. |
|
Only single-sided access is needed when the pulse-echo technique is used.
|
|
It is highly accurate in determining reflector position and estimating size and shape. |
|
Minimal part preparation is required. |
|
Electronic equipment provides instantaneous results. |
|
Detailed images can be produced with automated systems. |
|
It has other uses, such as thickness measurement, in addition to flaw detection. |
|
