Search results for query: *

Hi everyone, I am trying to find a material to use in a new application and thought you may be able to help me. I am looking for and elastomer with a durometer of 70 - 80 shore A. I also need this material to bond with nylon and be able to go through an autoclave process and not lessen the bond...

One thing I didn't mention earlier is that the shrink rates can very from material to material. The more crystalin the material is the more it will shrink. But based on the size of the part you are talking about, you should be able to dial it in pretty easily.

I can't talk specificaly on the molded silicone as I have never run it. In regards to your other question, a lot depends on the size of the part. All plastics have a shrink factor that is fairly constant. Once you get the process dialed in, you can generally hold some pretty tight tolerences...

Your best bet would be to talk to a machine manufacturer and get an idea from them. Electrical usage can vary depending on what accessories you have hooked up, if it is hydraulic or electricly driven, how quickly it is cycling, and a number of other things. Water consumption for the machine...

Molding plastic onto metal is a common practice using injection molding. There is no different equipment needed unless you use a robot to load the metal inserts. They difference in the process will be in the mold itself. You will need to have something in the mold to support the metal insert...

You will be better of leaving the polycarb in the barrel and the temp set at 350 degrees F. I have used it in numerous medical jobs, and we would leave it for up to a week at a time. If the job you are using it for is highly visual, either clear or white, you can get black spec's. Purging will...

I have a question on circuit board components and thought maybe you guys could help. We are currently using a Motorola triac, part number MAC12N on a board we use. Another vendor wants to use part number MAC12M. Can anyone tell me what the difference is, or a website that has info on these...

I have never used it, but RTP has a carbon fiber reinforced HDPE that has a shrink rate of .002" to .004" inch per inch. This is the closest I was able to find to the material callout you are looking for. This is an unbranched version, so you may see more shrink in yours. Your best bet...

The one question I would ask is are you looking at Delrin because it fits the characteristics you need in the final part, or because it was available in blocks that are easy to machine into prototypes. I have used Delrin to build prototypes to show the design concept, but then changed to a resin...

I have a question that I hope will be easy for you metal guys. I am having problems with rust on a part that is shipped overseas to Europe. It is mainly a plastic assembly, but there are a couple of metal components on it. Originally, the metal was finished in bright zinc. We saw some problems...

When left in the barrel at operating temp, the resin will begin to break down and leave carbon deposits on the screw and barrel. These will then come out as black specks in the material. This can also happen if plastic is left in the barrel with the heats off. As the plastic is heated back up to...

cte74, One thing I would look at is the paint used in the process. Lexan is very susceptable to chemical breakdown. If any new chemicals are used in the process, even in small amounts, drastic changes to the integrity of the lexan could be made. If the skin of the the component appears softer...

One thing that I have seen happen often is that there will be a sharp edge on parting line above the tunnel gate or where the downspout transitions into the cold slug well. When the downspout is pushed out, the back of it will rub on this edge and break off a small piece of plastic that is then...

This info may be too late to help you, but I am new to this website. I have worked for two companies that do two shot molding. If you are a molder looking to do this yourself, there is not a lot of information available other than finding someone who has designed the tools before. Finding a...

You can also check www.matweb.com

I am looking at replacing a current pin made of 41L40 steel with one made from 10B21 steel. It needs to be hardened to 30-40 Rockwell C. Is this safe change? I want to change from a machined component to one that is cold headed but I don't know much about cold heading steels. This pin is 1 inch...