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Blog Details for "Conference Room 4 (CR4)"
Conference Room 4 (CR4)Conference Room 4 (CR4)Conference Room 4 (CR4) is a forum for engineers, scientists and technical researchers to discuss engineering news, seek technical help and get answers to burning questions. 
Articles
Blank Size calculation
2009-09-20 11:21:00 pls provide simple formula to calculate the blank size of the component in attached drawing More About: Size , Blank
How much torque can produce a DC Motor?
2009-09-20 10:56:00 Dear Friends; How much torque can produce a DC Shunt and Compound motor? What are results if we compare the torque of a DC motor with an AC motor? I shall be very thankful if anyone give the answers of my questions. More About: Motor , Produce
Manufacture Process
2009-09-20 10:28:00 I need information about methods for moulding and tapping of aluminum. Thank you. More About: Process
Down conductor for Lightning arrestors
2009-09-20 09:40:00 Dear Sir, I want to know what kind of down conductors are allowable to connect with lightning arrestors. Is it acceptable to use insulated ground conductors as down conductor as per NEC? More About: Lightning
linear motion (stepper+rack and pinion)
2009-09-20 09:14:00 how can we get the brass platform(10x3x1) to move 0.5-1 mm (linear)by using rack and pinion and stepper motor More About: Motion , Rack
stepper motor
2009-09-20 08:41:00 I need to move a brass platform of 10*3*1cm dimension in steps.wat shld be my specifications for stepper motor?wt parameter sld I look? More About: Motor
Installation of cable tray above solid ceiling
2009-09-20 07:58:00 Dear Sir, We are planning to use cable tray above a solid ceiling to install sub-circuit cables, but I'm not so sure it violate NEC (since cable tray is not accessible due to solid ceiling). Kindly help me to clarify this. Regards, Asitha More About: Cable , Solid
Wall Thickness Calculation - ASME B31.3
2009-09-20 07:18:00 Couly you anyone explain me about the significant of 'Y' - co efficient from table 304.1.1 in wall thickness calculation as per B31.3. why this to be considered and reason behind that? Thanks, Uthayasankar. More About: Wall
Stainless Steel
2009-09-20 06:00:00 How do you know when you are purchasing high quality stainless steels. The last two batch of stainless steel we have purchased has become rusty within 2 weeks of purchase, for both 316 and 341 grades of stainless steel. Has anyone else had the same issue? Is this stainless steel being ship More About: Steel
Vanquishing Infinity?
2009-09-20 04:34:00 I have always hated the term "infinity" because it seemed like a cop out. Perhaps these guys are onto something: http://www.sciencedaily.com/releases/2009 /08/090817143556.htm More About: Infinity
Can You Use a MIG or CIG Welder to Weld Aluminium to Steel?
2009-09-20 02:18:00 hi im 14. me and my dad are thinking of getting an old range rover and converting it into a ute for 4 wheel driving. i need to no if i can weld steel onto the aluminium body? anything would be very helpfull. More About: Welder , Steel , Aluminium
Mitsubishi and RSLogix5000 PLC
2009-09-20 01:59:00 May I ask if anybody knew how will I be able to transfer data from MItsubishi PLC to RSLogix5000 PLC? More About: Mitsubishi
dc motor importers
2009-09-20 01:31:00 i would like to purchase a MY 6812 golf cart motor that is made by Zhejiang Unit Motor Co. China. I only want one unit, how do i find some one that carries that part in the USA?
Most Efficient Way to Save Energy
2009-09-20 00:46:00 Hi All, I am thinking of saving electrical energy for later use. Saving approx 5 kva (230v) over e.g. 8 hours, for use later. What would be the most efficient and cost effective way? Batteries + plus invertor? Pumping water to a higher level? Capacitor banks? Flyw More About: Energy , Save , Efficient
2000 chev. calavlier starter diagram
2009-09-19 23:56:00 i need to know where the color wiring on the starter goes im blowing both pcm fuses. More About: Starter
24 vdc motor on 12 vdc
2009-09-19 20:04:00 what is the problem with running a 24 vdc motor on 12 vdc More About: Motor
Electrician
2009-09-19 18:38:00 U.S. - Can an electrical engineer with 20+ years experience start a business doing residential electrical work, assuming that he (she) works alone? I mean from the legal point of view, not capability. Does he need any licenses, as master electrician or journeyman?
Compressed Air Engine
2009-09-19 17:29:00 Hi friends i need ur help i m making a comp. Air engine.I m having cylinder of it.It is nearly about 50mm bore dia.So i want to know which material i can use for piston,connecting rod & crankshaft.It is good if material is easy to give shape & good if available in home.It should be strong. More About: Engine
Pipeline and Hysis
2009-09-19 17:18:00 To all gurus, Please advise, if we can calculate the pressure drop of Gas Pipeline with length ca. 50 KM, Flow rate 35 MMSCFD, p input = 600 psi using Hysis software. How accurate actually this software to calculate the size of pipeline and it's pressure drop
Water out of Tube?
2009-09-19 17:05:00 A very simple task for the innovative ones........ A plastic tube of 1mm ID has water inside. My question is how can the water be removed, so that the tube from inside is completely dry. I used vaccum but it does not work..... More About: Tube , Water
Drying a powder
2009-09-19 16:59:00 A question for you guys- I want to dry powder (grain size similar to table salt) containing 8% moisture. The powder will be put in aluminium trays in layers of 1cm. The temp inside the oven will be 70 deg C. The flow of air will be such that no powder sholud blow up in the air. I am not able t
busbar selection chart
2009-09-19 16:34:00 hi all how can i calculate to select copper bussbar according Amphere if i know my Panel current. More About: Chart
PID fine tuning reg
2009-09-19 16:05:00 Hello guys im new to this group. I have some basic doubts about fine tuning PID loop what for Kp Ki Kd are used for tuning the pid loop and whats the function of those pl reply me.............. More About: Tuning , Fine
Critical Spares
2009-09-19 15:13:00 Hello all, I have recently been asked to build a spread sheet consisting of "critical spares" needed to be kept on board various off shore drilling rigs in my charge. This is not the first time I've been down this road, but the result seems to be much the same each time! The list is a virtual "Pando
Who's Worried About Armed Autonomous Robots?
2009-09-19 14:48:00 Professor Noel Sharkey, AI and robotics expert, University of Sheffield is worried. For one, the U.S. military is going full-speed ahead in deploying unmanned weaponry. In fact, there's a scramble to train thousands of 'point and click' killers ASAP to operate weapons like the Reaper MQ-9 drone. Sim More About: Robots , Worried
Bridging the Digital Divide
2009-09-19 14:35:00 Connect the World is an organization devoted to bridging the 'digital divide' or the gap between people with effective access to digital and information technology and those with very limited or no access at all. They estimate that only 5% of the developing world is connected to broadband. With proj More About: Digital , Digital divide
Should Police Tone Down Taser Tactics?
2009-09-19 14:35:00 Recent articles examine the Madison Wisconsin Police Department's use of Taser guns and what some are claiming as overuse. They say users of the device have little regard for delivering a level of pain that some say is tantamount to torture. They also add tht occasionally pain is inflicted on self p More About: Tactics
Cryogenic pump priming problem
2009-09-19 14:21:00 We have a Cryogenic pump (Liquid Oxygen at -185ºC). We cool (Prime) the pump for 30 mins and then start it up, the problem is that we oftern have to repeat the cooling stage several times, as the pump cavitates. At times its pumping fine and then the discharge pressure just drops and it ca More About: Problem
Missing Nameplate
2009-09-19 14:06:00 Hi all, How can I find out what size (KW rating) a electric motor is when the name plate is missing ? I know that its supply voltage is 380/220 Vac 3 phase... but that is about it.. Thanks More About: Missing
polishing machine for thin films
More articles from this author:2009-09-19 13:42:00 Dear All We are depositing thin films of silicon and germanium using a plasma sputtering machine, we are about to get a polishing machine to prepare the substrate prior depostiton. There is a polishing m/c from South Bay, Model 920 we are about to get with some fixtures. We are thinki More About: Films , Machine 1, 2, 3, 4, 5, 6, 7 |
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