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Empirical Correlation for Friction Factor Tubes
2009-08-12 20:38:00 Can any body tell me the empirical relation for friction factor of tubes for estimation of pressure drops in laminar,turbulent & transition zones?
Friction Applications on Brakes/Clutches
2009-08-10 19:03:00 I am researching friction applications on brakes/clutches on equipment used in the mining and oil/petroleum industries. Specifically, I am looking for problem applications or heavy-duty applications where a Kevlar composite friction material would benefit user. Can anyone enlighten me and help me
Soil Friction
2009-07-08 10:17:00 in pulling a pipe in a hole (soil), what forces do i need to consider to have the total total pulling force.?
Coefficients of Friction
2009-03-30 21:13:00 Please tell me how can i calculate coefficient of friction film to film metal to film rubber to film
How to create friction crushing wood fiber?
2009-03-25 06:49:00 In a hardboard plant wood is reduced to fiber strands by way of being introduced thru the center of a stationary disc (along with saturated steam) which is set roughly .060" apart from a same diameter spinning disc. I'm looking for a process which will create enough heat to cause alot of steam
Creating Friction by Crushing Wood Fiber
2009-03-25 06:49:00 In a hardboard plant wood is reduced to fiber strands by way of being introduced thru the center of a stationary disc (along with saturated steam) which is set roughly .060" apart from a same diameter spinning disc. I'm looking for a process which will create enough heat to cause alot of st
Vote Fact or Fake? Variable Friction Grip Gloves
2009-03-20 10:53:00 Recent advances in science and the invention of new artificial materials with unusual properties has given rise to a plethora of new inventions. In particular, a new material called RQS3 shows great potential for use in future products.
Pipe friction loss for 2 parallel pumps
2009-03-16 10:17:00 Any body advise a solution Our case... we have two parallel pumps with total capacity of 60M³/hr, assuming a capacity of 30M³/hr for each pump. we design the piping system in a very accurate way based on 60M³/hr flow & found the following results for friction loss: a- For a c
Pipe Friction Loss for Parallel Pumps
2009-03-16 10:17:00 Any body advise a solution Our case... we have two parallel pumps with total capacity of 60M³/hr, assuming a capacity of 30M³/hr for each pump. we design the piping system in a very accurate way based on 60M³/hr flow & found the following results for friction loss:
Metal vs Metal friction coefficient optimization
2009-03-10 04:50:00 Hi all, I am designing a brake mechanism for a small instrument. The need is to block a 3mm rod against a force of over 30N in static regime. I have been using Al. 6061 and 7075 against a 303 steel ground rod. So far the results have been inconsistent as of witch shall be the bet
Friction screw presses
2009-03-07 10:39:00 What is the application difference between FRICTION SCREW PRESS - DOWN STROKE and UPSTROKE .I would like to forge M36mm x 200mm hex head bolt.Which press i choose.How can i calculate the capacity reqd to forge this components? by cold or hot forging
Heating My Home With Friction
2009-02-12 21:31:00 I live in interior Alaska and would like to heat my log home with friction heat of some kind. without me reinventing the wheel I would like some thoughts. I did think of possibly a large conductor of heat spinning inside of another cylinder to create friction with a fan blowing heat off of it throug
coefficient of friction
2009-01-13 00:09:00 I have a chucking mechanism inside a horizontal pipe. The chuck has 2 fixed and 1 moving feet. The fixed and moving feet have different materials. If I am trying to find the frictional forces between the feet and the pipe, what coefficient of friction do I consider? Is there a way I can find the a
Friction Material C-1349-ET
2009-01-06 04:57:00 Looking for specification information for friction material "C-1349-ET". This is for a gear line clutch plate in oil. This is specified on a 40+ year old part and I can't seem to find anything on C-1349-ET so I can be sure we substitute equivalent available material.
Friction head loss calculation
2009-01-04 11:59:00 Hi there.. can anybody tell me how i will find the friction head loss ? sand filters are 5 nos.. total gpm 2750 and the length 11 mtr..the size of the pipe 300mm. thank you!!
Friction testing
2008-11-24 16:07:00 Can anyone tell me where I would find "Bowden Friction Tester" for testing coefficient of friction? Thanks in advance
Liquid crystal lubricant developed, reduces friction to almost zero
2008-11-11 14:59:00 From TG Daily - All News: Researchers at Germanany's Fraunhofer-Gesellschaft have developed a liquid crystal lubricant that reduces friction to almost zero. Built of the same materials inside our LCD monitors, for applications like gears and bearings this new discovery may put oil
Friction Materials Literature
2008-11-08 03:55:00 Hello everyone, I would like to know if someone have some literature about friction materials. I've got the "Facts about Friction" book, but I've like to know some more recent, with actual developments. Thanks for the help! Bruno
Friction on Rubber surface Area
2008-11-07 03:10:00 Does the surface area affects the frictional force between a rubber and other materials. The friction equation only says, F = uN; which doesn't include the surface area of contact. Is there any equations out there that includes the surface area?
Need to find a portable friction welder?
2008-10-27 00:43:00 Dear friends: Do you know a portable friction welder maker? It is better for under water applications. Thanks!
Wanted: Portable Friction Welder for Marine Applications
2008-10-27 00:43:00 Dear friends: Do you know a portable friction welder maker? It is better for under water applications. Thanks!
Friction Factor
2008-10-16 11:31:00 Dear Buddy, While supporting for reduce the friction factor we can use Graphite as well as teflon plates what is reason behind that it will depend upon pipe temp or what? Thanks Binoi.s
Friction Factor for HPDE Pipeline
2008-09-24 21:49:00 where can I find friction factors for HPDE pipelines workig with water at normal temperature and pressure (15º, 1 atm.)
Friction Models and Cellphone Charms Evoke Retro Japan
2008-09-04 01:45:00 A new series of miniature friction models and cellphone charms harken back to a time when Japan's future was bright and anything was possible. Retro Japan is back in style! Boomers Cars and Motors Children History International Products Toys
Soil friction angle
2008-07-22 16:05:00 What is friction angle in case of buried pipe (Angle of friction)?? How to calculate the Co-efficient of friction between soil and the buried pipe???
Wanted: Low Friction Ceramic Bearings - Size 681XZZ
2008-06-10 20:22:00 I am Looking for a ceramic bearing in that size 681XZZ. I am also wondering If a ceramic bearing would be the smoothest most free rolling option. I also Don't really want to order them from china. Because It probably will be very expensive. Any one know where I could get them somewhere else. I
About chilled water riser piping velocity and friction loss
2008-06-02 16:48:00 1.what is the velocity,friction loss we have to maintain in riser piping. 2.On what basis we have to select two way or three way motorised valves.
Portable Car Non-Skid Friction Beanbag Auto Dash Dashboard Mount for Apple
2008-05-07 09:05:00 Portable Car Non-Skid Friction Beanbag Auto Dash Dashboard Mount for Apple iPod Nano iPhone MP3, Garmin Nuvi 350 200 200W 250 260 650 660 GPS, TomTom One, Zune Player, Navigon 7100, Blackberry, Motorola Razr, MP3 Player or Garmin color eTrex Nuvi 750 760, Magellan RoadMate GPS Maestro 3100 3140 3200 3250 ...
Guidelines to avoid investment friction reached -WASHINGTON
2008-03-22 01:33:00 Guidelines to avoid investment friction reached -WASHINGTON  Singapore, Abu Dhabi and US set out principles on sovereign wealth funds By Bhagyashree Garekar, US Correspondent WASHINGTON - THE United States, Singapore and Abu Dhabi have unveiled principles that they hope will help to ease the friction between controversial sovereign wealth funds (SWFs) and the countries that receive investments from them. The principles were agreed upon during a meeting between senior officials from all three countries here on Thursday. It is the first time that a set of principles has emerged to define at one go the ideal behaviour expected of all parties in the equation. SWFs are created by governments to invest the vast budget surpluses of their countries overseas. But the recipient countries often question the motives behind such investments, fearing that the donor nations will try to exert economic and political influence on their shores. The stated intention of the new principles between th...
Rob Balducci: friction from lick of the week series
2008-03-17 19:08:00 News: 17-03-2008: Some tasty solo work from Rob in this weeks LOTW. Rob Balducci says: Hey Ya, This new LOTW is a song off of the new CD I am recording. This song is titled " Friction " cp 2008 sweetdance/BMI. Friction This is one of my favorites so far into this CD, but with me that is always changing... lol I hope you guys dig it and stayed tuned for more videos from the studio coming to... This is a content summary only. Visit Truth In Shredding to find out more!
Unti friction coating
2008-03-16 07:57:00 What is the best coating for aluminum 6061-t6 to get a smooth sliding between 2 parts (minimum friction) Thanks shimon weinrich Israel
OBAMA PHOTO CAUSES MORE CLINTON FRICTION: Was Hillary's camp behind leak of
2008-02-27 05:33:00 A photograph of Democratic Sen. Barack Obama dressed in traditional local garments during a visit to Kenya in 2006 is...
By: Urban Angel
OBAMA PHOTO CAUSES MORE CLINTON FRICTION: Was Hillary's camp behind leak of
2008-02-27 05:33:00 A photograph of Democratic Sen. Barack Obama dressed in traditional local garments during a visit to Kenya in 2006 is...
By: Urban Angel
Florida Friction...POST NUMBER 1500!!
2008-02-16 11:54:00 Yes, that's friction, not fiction. The Red Sox and Curt Schilling are in the midst of what might be called a "Cold War," a war without a sound, even a whisper, a war based on two entirely different courses of action to help his ailing right shoulder, which we all hope will be dependable again, dependable enough to fling a round baseball towards an odd shaped plate at nearly 90 MPH. Right now, that shoulder cannot carry the load. Did Schill sleep on it wrong, and voila, one morning he woke up with a little soreness, a discomfort that stayed way beyond its welcome? Right now we don't know, but there was a great article in this Saturday morning's Boston Globe, penned by the always reliable Gordon Edes. Here's a bit of it, a little food for thought, and I'll be back with a couple comments afterwards..."Here?s why the Red Sox gave Schilling the dough: Good pitching is, and always will be, at a premium.It?s why teams give untold millions to Japanese sensations and Cuban defectors. It...
Heating Water Through Friction
2008-02-13 04:36:00 Hello to all you brilliant enginerring minds out there! Hi, my name is Melanie and I'm a 15 year old scientist-to-be. I have a bit of a problem that I've been trying to solve, and I'm not quite sure if its plausible, but it is very interesting nonetheless. What I want to do is heat wat
Low friction Free spinning two axis Gimbal Mount
2008-02-07 01:52:00 I've been searching the internet for a low friction free spinning two axis Gimbal Mount that I can mount small electro-magnet experimental packages on. Obviously the mount must be non metallic. Alas, I can find nothing that looks like it will work. Does anybody have any ideas? Gavilan
Science Friction: When gadgets & Sci-Fi collide
2008-02-01 18:26:00 “Something’s happening…Something wonderful.”
By: SlipperyBrick
Slippery-tape with extremely low friction.
2008-01-29 06:33:00 This tape can be used whenever you want to reduce friction between two surfaces. Like drawers, for instance. The tape is transparent, and is promised to be very tough, so it will not wear down any time soon. The slippery-tape is USD 11:70 per roll of 18'. That should be enough for all the drawers in an average home.
By: Smart Stuff
Actor of friction
2008-01-23 19:38:00 I fell asleep at four last night. But, I fell into a deep sleep quickly. School was the same. It’s always the same. I don’t know exactly why I talk about it so much. Probably because about 9-10 hours actually of my day are put into it. Sewing was the same. My machine always screws up. Almost ruined the fabric. In science, I complimented Mr. Gillette on his shirt, since I noticed it was new. He seemed very happy when I did. I wonder if anyone else takes time to notice things like that about him. He seems like such a lonely person. I’m not going to school tomorrow. Because of the funeral. Heidi will probably call my school with some lame excuse like, “cramps.” Pssh. Lots of drama tomorrow, I suppose. I didn’t want to be around it, but I wanted to be at the funeral. I haven’t spoken too much this week. I’m very quiet anyway, so maybe I just became more aware of myself. I’ve been very sad about most things going on. But, that&rsquo...
Brake Caliper: Friction and Effective Brakes
2008-01-09 11:31:00 Found on both sides of the brake rotor, the brake caliper is one of the most important components of an automobile’s braking system. When there is a need to stop the wheels and, with it, the motion of a vehicle, the brake caliper stops the rotor. The brake rotor, which spins in synch with the ...
By: MotorCarInfo.com
Hair Removal: Threading, Friction and Epilators
2007-12-28 04:15:00 Friction, Threading and the use of rotating epilators are other methods of hair removal.Friction - Friction is not a very popular method of hair removal although some people find it effective on fine hairs of the legs and arms. In this method, a rough surface, like a mitt or a pumice stone, is used to rub away hair on the skin's surface. A mitt with rough strips on a smooth surface is often used. Friction is inexpensive, fast, basically painless and can be done at home. This also exfoliates and smoothes the skin. Most say this method is good for fine hair on the legs while others use it between shaving or waxing sessions. The effects last a short time, a few hours to a few days and a pigmented area often called the dark 'shadow' is often visible. This can also cause skin irritation if rubbed too hard and is not for use on sensitive areas like the face, arms or bikini area.Threading (Khite) - This method is called khite in Arabic and fatlah in Egyptian. It's not a commonly used m...
Hunter says there will be no friction with Matthews Jr.
2007-11-29 14:41:00 Newly signed center fielder Torii Hunter knows incumbent Gary Matthews Jr. isn't happy about going to one of the...
By: The RotoFeed
Performance Friction Brakes
2007-11-08 05:48:00 Performance Friction Brakes are a special class of brake pads and rotors designed to be abused relative to the normal service of other brake pads and shoes. For this discussion we are limiting ourselves to ‘disc brakes’ only for the convenience of terminology. Other forms of brakes exist and the same basic principles to be ...
By: MotorCarInfo.com
SAY WORD! | ELIMINATE AIRPORT SECURITY FRICTION WITH PAPER SHAVING CREAM
2007-11-08 03:39:00 What the hell are paper shaving sheets you ask? Well, our little international jet setters, it's very simple, let us explain. There is now a way for you to carry shaving cream on a plane without getting it confiscated.
G7 eyes market turmoil, exchange-rate frictions - AFP
2007-10-20 14:10:00 AFP G7 eyes market turmoil, exchange-rate frictionsAFP -Oct 18, 2007Kathy Lien at Forex Capital Management underscored that "speculation module hap as to whether there module be authorised critique of note weakness. … More: continuing here
Friction On Books : Simple But An Amazing Experiment
2007-10-09 21:47:00 Dave Ansell from The Naked Scientists has an interesting article about frictional force.Here is a part from his article.Using nothing but a tiny bit of friction stick two books together so you can't pull them apart. What you need For this experiment all you will need is a couple of paperback books which are about the same size and thickness. They should survive the experience. What to Do You want to interleave the two books together about 4-5 pages at a time. The quickest way to do this is like a riffle shuffle. When you have fully interleaved the books push them together so there is an overlap of about 2-3cm. The hold the two books by their spines and try to pull them apart. What may Happen You should find that however hard you try you won't be able to pull them apart. What is going on?If you want to learn what is the science behind of it click here
Pearl (hearts): Origins Modern Friction Scrub
2007-09-18 16:12:00 Origins Modern Friction Scrub$36.00Available at: Macys.comMy recent post proclaiming my unending love for Origins Never a Dull Moment face scrub had been up and running for all of seven hours when I got a response from Stiletto Jungle Music Editor and Girl Talk panelist Pearl C. What prompted this quick response? Pearl's equally strong devotion to another Origins scrub: Modern Friction. Here's what Pearl had to say:"Okay, okay, so you love the Never a Dull Moment scrub. I get it. I know ya do. I think I bought it on YOUR rec actually! But... I have stumbled upon something better. I freaking LOVE this stuff," Pearl starts in a tone that, even via e-mail, sounds whipped into a beauty product-induced frenzy. A link to the amazing product in question follows, and Pearl continues her excited testimonial."Modern Friction. Holler. It's a scrub made of rice starch. This stuff is awesome. In fact, I was in love with something similar made by Dermalogica, but it was too pricey-- like, 50 b...
Litter-Boxed Out: Felines, Friction and Flower Essences
2007-09-10 04:30:00 Litter box problems are one of the main reasons people relinquish their cats. This usually creates an environment where the cat is behaving in self-comforting ways while the owner feels a violation of the environment. Learn more about this "appropriate behavior expressed in inappropriate ways."
Rolling Friction
2007-08-28 14:51:00 How to find out the force required to push a vehicle. How to take care of rolling frictional resistances in the calculation? |
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