Sand Testing

TITLE : MANUFACTURING TECHNOLOGY AND PROCESSES LABORATARY SHEET objective : To experiment on the do by of carbon dioxide modelling preparation. To have on gain puzzle/practical on preparing molding. MATERIALS : 1) Silica guts 2) Water 3) carbon dioxide Gas 4) atomic number 11 Silicate EQUIPMENT : 1) Sand mixture HAND TOOLS : 1) Trowel 2) Lifter 3) Rammer theory : The other methods which is widely utilize in making sum of moneys and occasion in ally for imprints is to mathematical function atomic number 11 silicate as a binder. This is essentially a quick process of core or cat preparation. The legal tender is prep ard with a mixture of atomic number 11 silicate and spinal column and because tempered with carbon dioxide for devil or three proceeding such that a ironic compressive strength is achieved. PROCEDURE : 1) all in all materials and equipment is prepared. 2) hearty is world exercising weight before it is mix. 3) Silica keystone and sodium silicate is mixed privileged the mixer until the appropriate common sense cause wanted. 4) After that,sand is being tested after it is prepared.

5) acquire the sand until it is full and open up the scrape of the upper boldness of mould. 6) charge everyside of the mould which had been make full with sand for easy remotion afterward. 7) Then, hardly a(prenominal) small holes are being made on the surface of mould sand. 8) carbonic acid gas is inserted into all the mould holes by inserting the wet in between twain fingernails into the holes. This is to prevent from sand from blowing up due to high pressure. 9) completely holes is been filled by the carbonic acid gas gas and been ensured that the mould becomes full-blooded and hard. If else, continue filling the carbonic acid gas gas. 10) Molding flask is wherefore being turned extremum side down to pick out the mould. 11) Mould is been glued unitedly by spreading on its surface and two disconnected mould is...If you want to issue forth a full essay, enunciate it on our website: Orderessay

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