[Jewelry making - Article 00470] - Re: [Orchid] Setting up a casting studio

[ameeprecious]

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Dear Noel,

> >     Silquar high -heat blocks 12" X12" 
> >     Hydro air was gun. 
> 
>    Could you explain these?

    Silquar high - heat block 12"x12", 

    I use it to place my silica clay crucibles and Ingot molds, while
    melting gold silver and also platinum, it is a heat shield for my
    wooden bench on which i do melting, I place my other silica/clay
    crucibles with handles on it when they are hot, two 12'x12' are a
    great help, they are easy to clean and while melting any accidentle
    spill of few drops of metal is easily recovered and remains free of
    contamination. One can find it useful when to protect any surface
    form direct heat. it has small rubber legs which keeps it few
    milimeters away from the surface below. 

    Hydro air gun is used to wash or clean away the investment from the
    tree after quenching the flask. 

    still better to clean the investment from the casted tree is with
    high pressure water jet, but if the expence is not a matter and you
    have more trees to clean,then it is an wise thing to invest in one
    of them. the best thing is to use wet bead blaster to clean the tree
    after cleaning it with water jet or Hydor air gun, the wet bead
    (glass beads) blaster cleans the castings gently and removes 100
    percent investment from the castings reaching deep crivises of the
    castings while cleaning the casting surface to a shine,and any
    imperfections are also reavealed at this stage and helps in quality
    control of the castings at this first stage of cleaning, I am using
    this since last 15 years. It also help to eliminate pickling of the
    castings, since it removes the oxidation very gentl;y and perfectly,
    this wet bead blaster is mainly used on a huge scale to remove
    carbon oxidation layers from the fan blades of jet engines of jet
    planes. 

    So i recommend the Wet Bead blaster to all who can understand the
    long term benifit its usefullness in improving the suface of the
    castings,it is a one time investment on long term basis,experience
    can only tell, experiment and find out. 

    May god bless us all with total health, Mental, Physical, Spiritual,
    and Social.

Be Happy.
Umesh.
Be Happy
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