1. PlasterMold and Ceramic Mold CastingPlaster mold casting is a production process witha technique similar to sand casting.
Paris plaster is used to create molds forcasting instead of sand. Parts such as valves, tools, gears and key componentsare manufactured in the industry by gypsum casting. The process is the followingsteps:The model first CAD file is drawnor processed in Stereolithography, traditional craftsmanship or machined.The model is designed to includemetal pull mold conicity.
A plaster made of gypsum or calcium sulphate is mixedwith talc, asbestos, sand and sodium silicate and water to make slurry. Theslurry is sprayed on the surfaces of the pattern halves.It takes 15 minutes for theslurry to occur.
Molds are removed from the mold and dried in the oven. Coresand dies are installed. Molten metal poured into moulds. After cooling, theplaster is broken and the cores are thoroughly washed.CeramiccccThemanufacturing process of ceramic mold casting is similar to the molding processof gypsum casting, but you can pour material at higher temperatures.
Instead ofusing plaster to create metal casting, refractory ceramic is used for casting,mould material. Metal processing, metal molds and wheel cutting machines can beproduced in the industry and parts can be produced with this process.? Moldsare made of ceramic material Ceramics with higher temperatures? More moldcost than other casting methodsnShaw process -Reusable pattern in a sinkingbottle-The mixture is in a state ofrubber that allows the part and the balloon to be removed-The mold surface is thenhand-held with a hand-held flashlight. Materials UsedIn CastingsCasting is, in general, theprocess of creating a substance with a particular shape using a mold. Metalcasting uses a variety of metals to form the molded end product, and it goesback thousands of years.The metal casting methods and materials used in the past years are still usedtoday. Reliable and effective metal casting material used for industrialpurposes. The most commonly used resources are: • Gray iron• Ductile iron • Aluminum • Steel • Copper • Zinc Gray Iron CastingGray iron is the most preferred casting material in industrialproduction.
Accounting for a large part of the casting supply markets are amulti-faceted issue. The following are suitable for various applications,including those required:- Damping or vibration control- High strength weight ratios-Metal stasisDuctile Iron CastingDuctile iron is a useful alternate for processes that require more strengththan those provided by gray iron casting. Ductile iron is similar to gray ironand has almost the same advantages. Ductile iron differs from gray iron castingin the following ways:• Great power• Improved wear resistance* Stronger toughness• Superior ductility• Reduced weight• Reduced shrinkage• Less costAluminum CastingAluminum casting metal is a widely used technique because of its versatility.
Aluminum’s corrosion resistance, high thermal electrical conductivity, goodmechanical properties and high temperature resistance are an effective choice.::• Mold dump* Continuous mold casting• Investment castings Sand castingSteel CastingSteel is a very good hard castingmaterial for parts that will be exposed to exceptional wear, shock or heavyloads. It is useful for applications with corrosion resistance and hightemperatures in aqueous environments. Steel is usually mixed with chromium,iron and nickel, resistant to corrosion or heat. Copper CastingCopper is a casting material, the biggest advantage is that it has very goodelectrical conductivity. Therefore, the construction industry is oftenpreferred for copper for electrical components. Other advantages of coppercontent:• Good malleability• Superior ductility• Good heat conductionZinc CastingZinc is suitable for low melting point (425 ° C)die casting applications.
It is an easy alloy due to its fast filling and fastcooling capability. In terms of cost, zinc is an economical option for smallcast, high volume parts.Things to Consider When Choosing Casting MaterialsIt is important to select the appropriate casting and molding materialsfor a particular project. Some factors to consider when deciding on casting:: * Adequate sound level• Costing Melting temperature* Cooling speed* Wear resistance• Weight* Damping capabilities