Industry Print Exercise 23-2Refer to print PR 23-2. The sequence of operations for this print is given below. Answer the questionsfollowing the sequence of operations.Sequence of Operationsdescends at a controlled rate, slowly compacting the explosive charge to avoid detonation due to a suddenDescription: This is a system to control a 90-ton hydraulic, explosive-compaction press. The press ramshock.1. The cycle is started by energizing solenoid A, which shifts control valve 3 and supplies pressure to thehead end of the hydraulic cylinder (7). This operates the ram.2. The cylinder (7) extends at a slow rate controlled by the fluid in the rod end of the cylinder, which isvented through the flow control valve (5).the1. Whende-energizes solenoid A and energizes solenoid B. This shifts control valve 3 to retract the cylinder (7).de rol valve 5 has an integral check valve that permits the free flow of fluid in the opposite direction,causing the cylinder (7) to rapidly retraretract.4. The retraction of the cylinder (7) actuates the limit switch (8), which de-energizes solenoid B. Controlvalve 3 returns to the neutral position. This completes the cycle. This circuit has safety features.On electrical power outage, both solenoid A and solenoid B are de-energized. This allows valve 3 toreturn to the center position, thus stopping ram travel. Also, valve 4 provides low-pressure relief on theram upstroke, and valve 2 provides high-pressure relief on the ram downstroke.Questions1. What is the name of the circuit?2. How many reservoir symbols are shown, and how many reservoirs are there?3. What starts the sequence of operations?4. When valve 3 shifts on due to the energizing of solenoid A, to which end of the cylinder (7) is pressuresupplied?5. What causes the ram to extend at a slow, controlled rate?6. What causes the ram to retract?7. Why does the cylinder (7) retract rapidly?514Section 5 Specialized Parts and Prints8. What completes the cycle?9. What happens in the event of electrical power outage?10. Give the function of valves 2 and 4.513 BXKPR 23-2. 90 Ton Hydraulic Press Schematic5(M)(2) HIGH PRESSURE RELIEF VALVE(3) 4-WAY, 3-POSITION, BLOCKED-CENTER,DOUBLE SOLENOID ACTUATED, MAINTAINEDCONTACT, SPRING CENTERED VALVE(4) LOW PRESSURE RELIEF VALVEFLOW CONTROL VALVE, ADJUSTABLEAND PRESSURE COMPENSATED WITHBYPASS6) PRESSURE SWITCH(7) DOUBLE ACTING HYDRAULIC CYLINDER(8) LIMIT SWITCHREDD NEMCHECKEDTOOL NAMECOMPONENT LISTUNIDIRECTIONAL, FIXED DISPLACEMENT,HYDRAULIC PUMP AND ELECTRIC MOTORAPPROVEDSHEETMATERIALSTOCK SIZETALLEY INDUSTRIESMESA, ARIZONAMANUFACTURING ENGRG DEPT90 TON HYDRAULIC PRESS SCHEMATIC90 TON COMPACTION PRESS8/288/28WALKERSCHNEIDERSCALE NONENONE A 12116200 300 002 000 0002 ANGLES atCOMMON CONTORNE CONCENTRIC whosREMOVE BURS NO SAP EDES 230 MAK8568321Print supplied by Talley Industries

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Answered: 1. What is the name of the circuit? 2.…

1. What is the name of the circuit? 2. How many reservoir symbols are shown, and how many reservoirs are there? 3. What starts the sequence of operations?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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