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  1. fjbalaux

    Titanium coating on copper

    I use a soldering gun to melt tin and evaporate a corrosive oil. The problem is that the copper bits on the guns corrodes very fast. The material that have the best resistance the oil and the temperature is titanium but it have a poor thermal conductivity. I tried to make a titanium plug to...
  2. fjbalaux

    different parts with same molding conditions

    The ambient temperature and humidity are probably higher in Mexico than in France. Maybe you could measure parts at the same temperature and humidity in both plants.
  3. fjbalaux

    Nozzle cleaning techniques

    Hi I use to clean my nozzles in an oven at about 450 celcius. I left them in many hours. There is almost nothing left to remove after that. I hope this helps. Francois
  4. fjbalaux

    Documentation Structures

    The ASTM makes standards for steels. They have free exemples at www.astm.org. François
  5. fjbalaux

    Carbs adjustment with combustion analyser

    You have good points Rod but there are some things I should have said. I have a very good gaz analyser I can borrow from a forklifts repair shop. I can't go to a dyno because it's now winter here so I will not be able to ride for a couple of months. What I was thinking to do was to lift the rear...
  6. fjbalaux

    Carbs adjustment with combustion analyser

    I want to try to set the carburators air/fuel ratio on my motorcycle with a combustion analyser. Does the combustion gaz varies a lot with the load on the engine? Did any of you ever did this without a dyno? Are there any special tricks I need to know before I try this? Thanks for your help...
  7. fjbalaux

    Exaustpipe

    Honda used to inject water in the exhaust on its two strokes race bikes. It injected at midrange RPMs with full throttle only. It helped to increase midrange power. Maybe this have something to do with the car you are talking about. Francois
  8. fjbalaux

    newtons to kgs

    Newtons/9,81 = kg
  9. fjbalaux

    Horsepower questions

    1 hp is by definition the work needed to lift 33000 lbs at 1 foot/minute. When you measure the torque in feet lbs the work done for each revolution is 2*pi*1 (load*distance). 33000 /(2*pi) = 5252,11 Some of you guys seem to have a lot of experience with dynos. What do you think of inertia...
  10. fjbalaux

    Seeking a cast iron reparation method without welding

    I don't remember the name of the glue I used but you can test some types on broken cast metal parts. I think it should do the job on a bearing seat but it's hard to tell because I can't see the part. Francois
  11. fjbalaux

    Seeking a cast iron reparation method without welding

    There are some glues that are made for cast iron. I don't remember any brand names. The ones I have used in the past did a good job. Hope this helps Francois
  12. fjbalaux

    How to value regrind on balance sheet in plastic industry?

    I used to work in a plastic injection molding company and there the regring was valued as the cost of the material it could replace. Some products had an expensive material but we could'nt use any regrind in them so we had to use the regrind in cheaper products. In that case the scrap was valued...
  13. fjbalaux

    How to start?

    Hi I am a mechanical engineer in Quebec, Canada and there are many jobs here. In the province of Quebec it is good to speak english and french but you can make it in english only, especially in the city of Montreal. Having your EIT is a good idea. You can get infos about that at www.oiq.qc.ca I...

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