Metal Casting Methods
How would one be able to tell the difference in metal casting methods by sight alone?
What casting methods involve ejector pins?
Am i correct to assume that ejector pins will never be used in sand casting?
There are tell tale signs to everything made by one method or another. W…
Casting and Forming
I need to find the best processes and material for die casting or forming a pneumatic control housing. I will need the capabilityof producing between 5000-8000 units per annum. The control unit forms part of a pueumatic control system for a piece of machinery which will be expose…
Die Casting and Painting
I am doing die casting for my customer by his print in China. The print require the casting to be painted. and the specification as following:
Notes:
1. NO DOUBLE PAINTING WILL BE ACCEPTALBE.
2.FIXTURING THE RING FOR PAINTING:EXTERNAL BLEMISHES ARE UNACCEPTABLE
3.COMPLETE CO…
Vacuum Packing Machine for Semiconductors
I have a doubt regarding the Vacuum packing machine. Iam working in a semicinductor industry,usually after Testing the I.C's we will ship it to the end customer in a reel after vacuum sealing.
My Question is when you keep the reel inside ESD cover to seal, u…
I'm working on chilled water i have to put on test for 8hrs at 400lbs every thing holds pressure but power tool thread to copper thread heard black iron to brass and brass to copper works but do u know why black iron to copper leaks
It seems it would have to be due to the placement on the galvanic s…
Ive been in the business 17 years(industrial fabrication) and i have heard the term black iron used a lot to describe cheap steel pipe used primarily for plumbing. Threaded, welded and coupled. Its steel... they do make a cast iron pipe but its not commonly used for anything above ground anymore and…
I really question your explication: this is concerning a gas distribution network in a house.
As explained earlier: you should not mix galvanised with black and certainly not mix galvanised with brass.
But as the packing machine will not contain water, the risk for corrosion is low.
When the inspect…
Die Casting and Painting
I am doing die casting for my customer by his print in China. The print require the casting to be painted and the specification as following:
Notes:
1. NO DOUBLE PAINTING WILL BE ACCEPTALBE.
2.FIXTURING THE RING FOR PAINTING:EXTERNAL BLEMISHES ARE UNACCEPTABLE
3.COMPLETE COV…
What is the difference between casting and molding?
The difference between Casting and molding is that in one material, mold, and output product has a lot differences.
The difference between Casting and molding is that in one material, mold, and output product has a lot differences.
Generally the te…
What's the difference between casting and moulding?
I don't know the word difference.We used to describe casting for sand casting, die casting and moulding for injection moulding.
Like you rihgtly know, in the process of sand casting you will need to prepare the mould by moulding process, whether sy…
As the belt wanders, the side that wanders farther becomes slightly slack relative to the other side. Since the other side is still on the beveled edge. its greater tension tries to pull it down the bevel, pulling the v belt back until a point of equilibrium is reached. Adjusting the beveled roller …
belts, pulleys, bandsaw blades and bandsaw wheels
When I was a kid I asked why the pulley had a deep groove in it. I was told that the belt would ride down in the groove.
When I was a kid I asked why the v belt had a rubber belt around it that was thicker in the middle than on the edges. I was told …
Pitch Diameter for V-Belt Pulleys
Please Provide a definition of the "Pitch Diameter" as it applies to V-Belt Pulley Design. It has to be a function of the pulleys O.D. Does the belt size have anything to do with the pitch diameter?
The OD is the physical size of the pulley.
The Pitch diameter is th…
Flat Belts vs. V-Belts
Dear all,
I have a query with respect to the replacement of v belt with Flat Belts.
It is true that flat belts are more energy efficient (transmission load on the motor is less) as compared to V belts?
Can flat belts be used everywhere?
What are the possible advantages/disadva…
Insurance is no help to me as, because of my various illnesses I cannot get Insurance of any kind that relates to my health in any way. It is a v belt, but something I have had to live with all my life.
Thanks for your post though.
I just did a calculation of the garden tool I need daily on a yearly…
I did send for a 'punch' type design which was designed to push a single tablet out. But the plastic it was made of was far too soft and bendable and the pieces that should have met-up to puncher and then push the tablets out of the foil just bent before any tablets were even pushed out. I would be …
I have just read gsuhas' further post with his idea. The trouble is I cannot touch the foils after they have been torn or punched as it is what appears to be packing machine little bits of foil left that cut me. I have such thin skin on some kinds of packaging the plastic also cuts my fingers. So th…
In that you are all ready seeing a doctor to obtain these prescriptions show him your hands. Tell him the damage that is being done to them and the cause. I am sure that arrangements can be made to have it done for you by the pharmacist. In the quantities that you stated the pharmacist should be abl…
If it's an over the counter product, I'm sure you could come up with a hand tool (scissors, etc.) to retrieve the pills individually as needed. If not, a sympathetic pharmacist might still be willing to strip a package or two at a time.
There were investagating reports on cable, that meth - v belt t…
I want a machine to strip tablets from the foil
Dear Sir,
I need to take over 15,000 tabets and want to make a machine to strip the tablets from the foil.
Is there either I machine for sale out there I can buy that doesn't cost thousands, orplans I can get?
My thoughts are for a simple machine using…