TD Type Magnetic Field Indicator Octagonal Test Block Magnetization Indicator ASTM-709 Standard Magnaflux Accessory (1# for Pressure Container/General Machinery)

TD type magnetic field indicator (also known as octagonal test block), is made up of eight low carbon steel and copper pieces welded together by electric furnace brazing, with a non-magnetic handle, which is basically the same as the standard test piece, but more durable than the test piece and easy to operate

• TD type magnetic field indicator (also known as octagonal test block), is made up of eight low carbon steel and copper pieces welded together by electric furnace brazing, with a non-magnetic handle, which is basically the same as the standard test piece, but more durable than the test piece and easy to operate
• For the workpiece with small curvature radius and the A-type test piece cannot be attached, the use of A magnetic field indicator is still effective. Manufactured according to ASTM E709 and ASTM A275 standards. It can check whether the comprehensive performance of the flaw detection equipment, magnetic powder magnetic suspension and the operation method are appropriate, and can fully reflect the magnetic field strength and direction of the magnetized area
• Specifications: 1# is suitable for pressure vessels and general mechanical products; 2# is suitable for forged steel parts and general mechanical products; 3# is suitable for inspecting the comprehensive performance and operation method of flaw detection equipment and magnetic powder and magnetic suspension
• How to use: When in use, the indicator copper face up, eight pieces of low carbon steel face down close to the workpiece to be tested, using continuous method to apply magnetic suspension to the indicator copper surface, observe the magnetic trace display. To detect small defects, indicators with thicker copper sheets should be selected; To detect larger defects, an indicator with a thinner copper sheet should be selected
• Note: 1. Before using the test block, gently wipe the oil stains on the surface of the test block with soft paper or gauze. When using the copper sheet, the eight pieces of carbon steel face down. 2. Please apply anti-rust oil after using the test block
• It has the advantages of intuitive magnetic display, easy to use, good contact, strong and durable, good repeatability of defects, etc