Search - Content
Search - Industry
Search - People/Events
Search - Forums
Search - Newsfeeds



jobcenterbanner

FacebookLinkedinPinterestYoutube
Richard Burke

Groups

  • No joined groups.
3
Points
0
Groups
2
Friends
0
Photos
10
Activities

About Me

Personal Information

Gender
Male
About me
40 years in the magnet wire industry with positions that include processing, product, equipment start up, design and construction and plant management. Corporate training, development for a college.

Company Information

City / Town
Hixson
State
TN
Country
United States

Background

College / University
Univ. TN- Chattanooga.: Univ. So. Dakota.
Graduation Year
1968 ; 2007
Degree/Certifications
BS Engineering Mgt.
MA Education Administration/Adult Education

Recent activities

  • Richard Burke created a new topic ' Corporate Training' in the forum.
    The best workforce is a well trained workforce. Many companies are setting up "Corporate Universities" or "Company Colleges". Some of the companies provide on site training or training through their local community college. Others take advantage of Online training programs which allow employees access to hundreds of course at anytime or from any place. These courses are very economical and convenient and cover a wide variety of topics. If you are interested in more information about how you can improve your corporate training and the effectiveness of your workforce, please let me know at This email address is being protected from spambots. You need JavaScript enabled to view it.
    Read More...
    kunena.post 1 day ago
  • A quick simple test would be to run the tester until the elongation indicator displays a number that is approximately 5 cm. Read what is indicated as accurately as you can. Measure the physical distance of the items where you previously measured 24.9. Subtract the 24.9 from the measured distance. Divide that distance by 24.9. Does sit equal the number shown on the elongation indicator. If it does you really don't have a problem as you are getting a fairly accurate elongation measurement.
    Read More...
    kunena.post 29 days ago
  • Richard Burke replied to the topic 'Re: Drawing and annealing of aluminum alloys' in the forum.
    I have minimal experience with drawing aluminum but I once worked for a company that also made coilers and had one at a major aluminum processor in upper NY. This I learned: The higher the tensile strength of the aluminum alloy the greater the horsepower required to draw it. This company had a huge rod break down machine and will drawing the softer aluminum alloys could reach speeds of 5-7,000 fpm however with the higher tensile alloys operating the 800HP! motor at 110% electricity they could only get up to about 1,200-1,500 fpm! They were running about 7 awg and lubrication was critical as die wear was much worse than with the lower tensile alloys.
    Read More...
    kunena.post 29 days ago
  • Richard Burke replied to the topic 'Springback' in the forum.
    If you are having spring back problems within a batch of wire, I would suspect the quality of the rod was not uniform. When I had a sample fail, I would then scrap several pounds (Kg) off that spool and retest it. Do this several times to see if the problem comes and goes. If it does I think it would indicate a lack of purity of the conductor. At the same time you need to make sure that the temperature of the pre annealer and oven is snot varying. If you have some samples that pass and some that fail, do a metallurgical analysis to determine the structural and chemical differences between the samples.

    It is also important to know that there are not outside influences affecting the pre annealer or oven such as drafts cooling the pre annealer, condensate in the annealer, etc.
    Read More...
    kunena.post 38 days ago
  • Richard Burke replied to the topic 'magnet wire' in the forum.
    I'm sorry I've tried responding a couple of times and it doesn't show up.

    While it varies with applicator design, typically for large wire on vertical systems the enamel dies should have some free floating ability. This will help the wire to be centered in the die opening and provide a uniform coating . It also depends upon the die design. As the wire is wetted by the enamel or varnish and enters the die, there is a build up of pressure in the die. This hydrostatic pressure will cause the die to move. You don't care so much that if moves but that it stays straight? It cannot cock to one side or bounce up and down (chatter). If the die is fixed in a rigid position and cannot move at all it places greater emphasis on the alignment of the wire into the die. Enameling does have the benefit of the wire making multiple passes through the applicator and there is some rotation of the wire as it makes the various passes during the process so it tends to even out the concentricity of the coating.
    Read More...
    kunena.post 38 days ago
  • Richard Burke replied to the topic 'Springback' in the forum.
    Spring back failure indicates a lack of flexibility. You can have minimal elongation and poor spring back. I have never seen good spring back and failing elongation. First I would ask my rod/wire supplier to provide me proof of quality. check your equipment supplier directions. The supply wire should be soft of annealed. You should reduce it at least 30-40% but no more than about 80%. This should, if your copper wire is good, result in a product that has good elongation, good spring back , and increased tensile strength.

    The best finished Eire comes from the highest quality rod or rod that is made from "virgin" copper as opposed to reprocessed copper.
    Read More...
    kunena.post 100 days ago
  • Richard Burke replied to the topic 'Aliminium magnet wire' in the forum.
    Cleaning aluminum wire for enameling can be challenging but not impossible. Some use an ultra sonic machine. Other use their regular pre annealer. Some use a combination of the two. Challenge with typical preannealer is to get the wire hot enough that the quench water dries before it gets to the applicator. Aluminum wire is very soft so it is essential that you have a separate enamel supply and drain for the first pass. If you try to run all base coat passes throught the same applicator and enamel supply you run the risk of contaminating the enamel with aluminum dust and this will cause the wire to fail dielectric testing.
    Read More...
    kunena.post 100 days ago