Casting ppt free download

Presented by: Chandra bhan prajapati AMD The casting process is subdivided into two distinct subgroups: 1 - Expendable mold casting sand, plastic The processes that are used in the production of stainless steel pipe and tube are seamless, centrifugal cast, longitudinal welded, spiral welded, press brake fabricated and roll formed fabricated.

Stainless Steel Tubes are created from stainless steel round billets by several hot and cold processes. Casting An example of an art work that can be produced by casting. Casting Defects - Casting Defects Metal casters try to produce perfect castings.

A few castings, however, are completely free of defects. Modern foundries have sophisticated inspection Casting Defects Metal casters try to produce perfect castings. Casting - Expendable mold casting: Sand Casting. Plaster casting of metals Plaster casting of plaster or concrete Shell molding. Investment Casting Expendable mold casting: Sand Casting. Email: Sales2 tobeepump. Hebei Tobee Pump Co. The function of riser is just to feed molten metal into the void where shrinkage occurs. Certain shapes cannot be machined Cupola Furnaces.

Five Zones. The centrifuge is flexible and versatile to suit all the industrial needs. Check out this presentation and know the pros of selecting multi-stage centrifugal blower. The multi-stage centrifugal blower is uniquely designed to provide longevity and durability. Die casting is a metal forcing so as to throw process that is described liquid metal under high pressure into a mold cavity.

The mold cavity is made utilizing two solidified device steel dies which have been machined into shape and work comparatively to an infusion mold amid the procedure, Alpha Metal Industries manufactures highest quality Aluminum Pressure Die Casting. Aluminum Pressure die casting is defeated high volume run parts with more slender divider thicknesses.

Centrifugal Glass Casting. Figure extra Centrifugal Kalpakjian, Manufacturing Processes for Engineering Materials Note the similarities to the low-pressure process. One of the largest manufacturer of Centrifugal casting Sole manufacturer of single piece cast axle beam Axle beam is a rod that connects a set of wheels in an The processes that are used in the production of stainless steel pipe and tube are seamless, centrifugal cast, longitudinal welded, spiral welded, press brake fabricated and roll formed fabricated.

Stainless Steel Tubes are created from stainless steel round billets by several hot and cold processes. Subsidised company specific research. Market opportunity referrals This project was proposed under the Advanced Manufacturing Technology Strategy's Cylinder Liners - 40 years of manufacturing experience and expertise with one roof manufacturing outlet pieces Production Capacity of cylinder liners per month per shift.

The apparatus consists of a number of standard sieves mounted one above the other, on a power driven shaker. In between sieve are placed in order of fineness from top to bottom.

The amount of same retained on each sieve is weighted. Percentage distribution of grain is computed. An inverted bell jar, which floats in a water. A manometer measure the air pressure The air cc volume held in the bell jar is forced to pass through the sand specimen. Take the pressure reading in the manometer. S standard sand specimen to very high temperatures ranges depending upon the type of sand. Sintering has not yet set in. If the sand is good, it retains specimen share and shows very little expansion.

If the sand is poor, specimen will shrink and distort. The strength can be measured in compression, shear and tension. The compression and shear test involve the standard cylindrical specimen that was used for the permeability test. It consists of indicator, spring loaded spherical indenter. The depth of penetration w. On continuous use of molding sand, the clay coating on the sand particles gets thinned out causing decrease in its strength.

After all the foreign particles are removed from and the sand is free from the hard lumps etc. There are two methods of adding clay and water to sand. It has been suggested that the best order of adding ingredients to clay bonded sand is sand with water followed by the binders.

Thus the adequate mulling economizes the use of binders. An additional advantage of this mixing order is that less dust is produced during the mulling operation. While the rollers roll, the ploughs scrap the sand from the sides and the bottom of the pan and place it in front of For producing a smearing action in the sand, the rollers are set slightly off the true radius and they move out of the rollers can be moved up and down without difficulty mounted on rocker arms.

The mechanical aerators are generally used for aerating or separating the sand grains by increasing the flowability through whirling the sand at a high speed by an impeller towards the inner walls of the casting.

Sufficient care should also be taken in such that sense that the molding box must adjust mold cavity, riser and the gating system sprue, runner and gates etc. The facing sand is then sprinkled carefully all around the pattern so that the pattern does not stick with molding sand during withdrawn of the pattern. The drag is then filled with loose prepared molding sand and ramming of the molding sand is done uniformly in the molding box around the pattern.

Fill the molding sand once again and then perform ramming. Now the cope pattern is placed on the drag pattern and alignment is done using dowel pins. Then cope flask is placed over the rammed drag and the parting sand is sprinkled all around the cope pattern. The gaggers in the cope are set at suitable locations if necessary.

They should not be located too close to the pattern or mold cavity otherwise they may chill the casting and fill the cope with molding sand and ram uniformly. Strike off the excess sand from the top of the cope. Remove sprue and riser pins and create vent holes in the cope with a vent wire. Sprinkle parting sand over the top of the cope surface and roll over the cope on the bottom board.

The gate is then cut connecting the lower base of sprue basin with runner and then the mold cavity. Apply mold coating with a swab and bake the mold in case of a dry sand mold. Set the cores in the mold, if needed and close the mold by inverting cope over drag. The cope is then clamped with drag and the mold is ready for pouring, Cores and Core Making In fact the core has to withstand the severe action of hot metal which completely surrounds it.

Core produces hollowness in castings in form of internal cavities. It must be sufficiently permeable to allow the easy escape of gases during pouring and solidification.

It may form a part of green sand mold 4. It may be deployed to improve mold surface. It may provide external under cut features in casting. It may be inserted to achieve deep recesses in the casting. It may be used to strengthen the mold. It may be used to form gating system of large size mold. Keeping the above mentioned objectives in view, the special considerations should be given while selecting core sand.

Silica sand is preferred because of its high refractoriness. For higher values of permeability sands with coarse grain size distribution are used. In fact the core Fig. The two identical halves of a symmetrical core prepared in the half core box are shown in Fig.

In such cases, right and left hand core boxes are used. Out of these three machines, jolting and slinging are more common for core making. After ramming sand in it, the core box is placed on a core plate supported on the machine bed.

This rapping action helps in drawing off the core from the core box. In these types, core carrying conveyors or chain move continuously through the oven. Aluminum Gravity Casting - Aluminum Gravity casting alloys are lightweight and possess high dimensional stability. It provides high thermal and electrical conductivity has good corrosion resistance and mechanical properties hence making it a good alloy for die casting.

To the die casting industry's low-density, aluminum metals are essential. Benefits of investment casting as compared to sand casting - A key gain of funding casting, though, is the flexibility of its mold. Because the mildew is expendable and due to the particular wax techniques may be reduced unobtrusively in liquid shape, generators have a top-notch amount of liberty.

Sand Molded Casting Manufacturer - As the name suggests, the term permanent mold casting refers to a process that involves the utilization of permanent or reusable molds of sand molded casting. Another term wont to ask an equivalent process is chill casting.

During this article, we are getting to determine details about this process. Read on to seek out more. Some of the most applications of silica sand for industry - Here in this article, the following are some of the multiple frequently seen applications for industrial sand.

It is also chemically inert, which gives it a popular option for treatment in the manufacture of glasses. We will discuss the advantages of investment casting in India and get the production means precisely.

Pump casting: Which are the different types of casting? It provides almost unlimited freedom in the field of property cast metals non-ferrous alloys are the various common materials in use. Each technique has its advantages and limitations. Explained Metals used in the casting process - A separate part of the mould, created of sand and generally baked, which is related to creating openings and many shaped cavities in the castings. Casting for valve parts may be made of any metal.