Service Temperature of Plastics

Manufacturer's data sheets for plastics do not normally give continuous and maximum intermittent service temperatures. These are essential figures when deciding on the right plastic for a particular job, particularly where high temperatures - say 150-200C are involved.

Is there any way of p

parallel piping system

i just want to know if in electrical circuit, the equivalent resistance of a parallel circuit is given by 1/Rp=1/(1/r1+1/r2+........1/rn). Then is this relation true for parallel piping also for finding equivalent pressure loss in a parallel piping system? since the parallel piping and parallel ele

Cognitive Psychology

Hello,

I am doing my project concerning the cognitive psychology approach in manufacturing and my problem is where can I get the information about the relationship between cognitive approach in manufacturing?

Thanks....

Press Brake Design and Build

Please advise as to how to build a hydraulic press brake. Ideal bed length 5 to 10 feet long. Capacity @ 100 tons. One or two hydraulic cylinder operation.

CR4 Admin - phone number and e-mail address removed

From the Site FAQ: Do not post phone numbers or email addresses. The CR4 A

The Gadabout and the Phantom Corsair

Well now this is interesting. Since discussing the plywood cars and hydraulic drive systems of Raymond Russell, we've been in contact with Russell's son, Raymond Benjamin Russell, who sent us a much better photograph of the Gadabout than we could find earlier. The gadabout is a remarkable car i

Foot Bridge

My brother has a sports camp in the mountains of NH. He wants to build a footbridge (suspension) that spans approx. 50 feet, 5 to 8 feet above a creek, which is usually dry. I need a push in the right direction to start some R&D. Could any one help me with ideas? I'm thinking of 3 cable in a t

Static Electricity Shock

I was polishing a piece of aluminum with a 6" cotton wheel mounted on a 1/2HP 120VAC motor the other evening. This device is plugged into a ground fault receptacle and has the case grounded. The polishing wheel was a 5/8 or 1/2" size mount, with a plastic bushing to allow it to fit the 1/2" shaft mo

Bushing for Wire Rope

Hello all,

We have ~80 blocks mounted to our ceiling over each of which 7 runs of 1/4" aircraft cable pass. I am trying to resolve a set of interconnected issues we are having with these blocks. This is a theatrical counterweight fly system with an 80'+ ceiling.

The first (and cl

Stormwater Recharge (Perk Ponds)

Several developments near my home use perk ponds to force stormwater below ground level. Now, my basement has flooded several time a year and during the rainy months my septic is inundated with water. What can be done?

street lamp posts

Can somebody give some email addresses of manufacturers of tapered circular concrete street lamp posts? In one pole I found the word "BARRATT" but I couldnot find the address

Keyboard Problems

Knowing there are some very knowledgeable people out there, I hope someone can point me in the right direction to solve a keyboard problem.

Operating system Windows XP.

I have just had to replace a motherboard and because of the differences between the new and the old boards had to

Surface Grinding to Achieve a Bullnose Finish?

Hello All,

Not sure if this is in the right section but here goes anyway. Is there a tool that can be used to create a bullnose / round finish on the end of a 1.5mm Nitinol rod? We tried using a grinding machine but this created more of a chamfer (beveled edge) as opposed to a rad (bullnose) id