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  • Graphite Spray Technique to Improve Cast Iron Surface
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    nbsp 0183 32 I have seen several recommendations by members of use of graphite spray often using alcohol as a suspending fluid applied to sand castings to improve cast iron surface finish But I have not seen any details like what brand or fineness of powder is used What...

  • The Remains of Franklin Pierce s Pencil Mine
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    nbsp 0183 32 Graphite or plumbago had several uses including as a lubricant iron-blackening stove polish and for the lead in graphite pencils Pulverized plumbago powder mixed with a clay binding agent and encased in wood made for a portable writing implement that was more convenient than a...

  • A Manual of Mending and Repairing by Charles Godfrey
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    nbsp 0183 32 as plumbago calcined lime magnesia chalk red oxide of iron soapstone or with varnishes forms insoluble soaps To powder glass heat it red-hot drop it into cold water and pulverise it It will become as fine as flour and in this state combines with...

  • Grease lubricant
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    nbsp 0183 32 Grease lubricant Last updated November 08 2019Grease is a semisolid lubricant Grease generally consists of a soap emulsified with mineral or vegetable oil 1 The characteristic feature of greases is that they possess a high initial viscosity which upon the application of shear drops to give the effect of an oil-lubricated bearing of approximately the same viscosity as the base oil used...

  • Going crazy The Home Foundry
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    nbsp 0183 32 Spraying on graphite powder or plumbago mixed with alcohol works well on silica sand to give a fine finish for iron After it s sprayed on you can flare off the alcohol with a match Use a cheap spraygun as the mix is abrasive...

  • Where Does Pencil Lead Come From
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    nbsp 0183 32 Because it looked like lead the pencil material was known as plumbago or lead ore But in 1779 chemist Carl Scheele made the discovery that it was a form of carbon and unrelated to lead The word graphite came from the Greek verb graphein which means to write...

  • Chemical Names of Common Substances
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    nbsp 0183 32 plumbago graphite potash potassium carbonate potassa potassium hydroxide precipitated chalk calcium carbonate bleaching powder chlorinated lime calcium hypochlorite blue salts nickel sulfate blue stone copper sulfate crystals blue vitriol bluestone...

  • Purification application and current market trend of
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    nbsp 0183 32 Graphite is a good conductor of heat and electricity and has a high regular stiffness and strength Graphite plumbago can sustain its firmness and strength up to temperature more than 3600 C It is a highly lubricating material with chemical inertness and...

  • Electrolysis
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    nbsp 0183 32 Electrodes of metal graphite and semiconductor material are widely used Choice of suitable electrode depends on chemical reactivity between the electrode and electrolyte and manufacturing cost Historically when non-reactive anodes were desired for electrolysis graphite called plumbago in Faraday s time or platinum were chosen 19...

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