Wet Hoz Magnetic Particle Inspection Machine for 155mm M776/M284/199 Cannon Breech

3 Machine Specific Requirements: The new Magnetic Particle Inspection Machine shall be capable of inspecting the outer surface and the internal surface of the 155mm M284, M776, M199 cannon breeches manufactured at the Watervliet Arsenal.3.1.1 General Physical Requirement: The Magnetic Particle unit complete with: ? Maximum current output 6,000 amps FWDC ? Demagnetization - Reversing DC ? 30in Head Opening ? Digital Ammeter with ?hold? feature ? Infinitely variable current control ? 30in Coil ? Stainless Steel Tank 58in L x 47in W, V shape stainless tank with sufficient pitch angle, mesh screens, and dust covers? Hardwood Grilles ? Foot switch operation ? air chuck ? Full Panels ? Louvered ? Hip Bar ? Powered rotary turn table 500 lb. capacity (safety payload up to 1500lbs.)? 30in diameter coil to be raised and lowered by manual pneumatic valve.? 2in diameter aluminum thru conductor to be raised and lowered by manual pneumatic valve. Thru conductor will manually pivot horizontally for rear storage after use. ? A overhead 500 lb. hoist/trolly will be supplied. ? Full curtain inspection enclosure with REL C4 magnum LED black light and 1000 CFM roof extraction fan. ? Accessory including Keto ring, keto ring CAL fixture, Gould-Bass MD-220 Hall Effect Magnetic Field Strength Meter, and 2 handheld cordless dual white / UV-A LED lights? Voltage 460VAC, 60HZ, 3 phase 200 Amps, Four - No. 4 AWG 3.1.2 Performance Characteristics Magnetizing Output Current (maximum): 6000 DC Control Setting: Infinite adjustment. Regulation: Electronic Rectification: Silicon Controlled Rectifiers (SCRs) Demagnetization Output DC Mode: 6,000 amperes (maximum) alternating polarity ramped to zero amperes Range of Automatic Timer DC Magnetization: 1/6 to 1? seconds (? second normal) DC Demagnetization: 15 to 40 seconds (30 seconds normal) Manual Timing: Manual operation (Remote cable must be used for manual timing) (Terminal cutout will disconnect unit if overheated.) Duty Cycle At 100% Rated Output: .5 seconds ON, 4 minutes OFF At 40% Rated Output: 10 seconds ON, 3 minutes OFF Thermal Cut Out: Disconnects unit if overheated Convenience Outlet: 115V AC, 60 Hz, 5 amperes Weight: 1150 pounds (approximate) Dimensions (Overall) Length: 136 inches Width: 111 inches Height: 112 inches 3.1.2 Detail Description 1. Constructed of a rigid steel framework with full louvered panel finish. 2. Maximum current output is 6,000 amperes FWDC in the conventional mode. 3. Complete with automatic reversing DC demagnetization. 4. Complete with (quick break) circuitry to ensure maximum residual field and maximum repeatability of inspection results. 5. Complete electronic controls including self-indicating plug-in modules for reliability and ease of maintenance. The electronic controls also provide a very fast response time of only 8 milliseconds, i.e. time taken for the magnetizing current to reach the desired level.6. Complete with infinitely variable, current control current selection between zero and maximum output. 7. Fitted with digital readout meter with L.E.D. display, accurate to ?1%. This meter has a (hold and display) feature whereby the magnetizing current level is shown and held on display until the next magnetizing shot. The meter is also fitted with a current assurance light which illuminates to show magnetizing current flowing through the component. 8. On the control panel of the unit are mounted all the various switches for choice of current, magnetization or demagnetization, and for contact or coil method. 3.1.3. Conventional Magnetization or Demagnetization In the conventional mode parts can be magnetized in the longitudinal direction and the circumferential direction. The field is applied to the part by either clamping between the head and tail stock and firing a half second current shot through it, or by still retaining the part in the head and tail stock, moving the coil into position, and then energizing the coil. The conventional mode can be carried out with F...