castfactory

Lost Wax Casting is known as Cire Perdue in French. It is aprocess in which an artist’s sculpture is used to cast bronze. The Lost WaxCasting method is also known as Investment Casting in the modern industrial world. This is a veryancient method used for casting small bronze sculptures, but today it is usedto make many different artifacts and the process varies from foundry tofoundry. Today this developed method of Lost Wax Casting is used to makearticles like fine jewelery, show pieces, dental restoration, a few specificindustrial parts and also some machine tools.

Process of LostWax Casting:

Rough Sculptormaking: A creative artist makes an original sculptor or mold or anartwork by using raw material like wax, plaster of Paris or clay. A mixture ofoil based clay and wax is preferred as these materials retain their softness.

Final Mold Making:A mold is then made as per the original sculptor. The mold is made upof two pieces and a key with shim is placed between the two pieces duringconstruction so the mold can be put accurately back together. Molds aregenerally made using plaster or fiberglass or any other material that may besuitable. An inner mold of latex or vinyl or silicone is put pup preserve the detailsof the original art work. Generally, the original art work made of plaster moldcracks and breaks during the initial phase of deconstruction. Many a times,numerable molds are required to get the exact replica of the original art work.

Filling up themold: Once the latex and plaster mold is complete and finished, moltenwax is poured into the mold till it gets an even coating all around the mold.The thickness of the wax coating is around 1/8 inch. This process is thenrepeated until the desired thickness is achieved.

Removal of waxreplica: The hollow wax replica of the original art work is thenremoved from the mold. The original mold can be used for making more waxreplicas, but due to the wear and tear of the original mold the reuse of themold is limited.

Softening: Eachwax mold is then chased or softened using heated metal tools. The metal toolsare rubbed around portions that show cracks or the joining line of the mold,where the pieces have come together. Separately molded wax pieces are thenheated and attached. The finished mold is then dressed in order to hide anyimperfections. The final piece then looks like a bronze sculpture.

Making paths formolten bronze: It is also known as “spuring”, in short the wax copy isthen branched with treelike wax, so that the molten bronze reaches the rightparts and also it helps the air to escape. The critical and careful die casting factory spuringbegins from the top of the wax copy. The top of the copy is attached to by waxcylinders to different points on the wax copy.

There are various types die casting factory of castingtools. Provided below are details of some of the casting tools.

Esmarch plaster scissors: These are German stainless steelcast scissors of high quality. The entire length is 20 centimeters or 8 inches.There is a 6 centimeters slanted blade for safety of the patient. The handlefor leverage is of 15 centimeters. This is perfect to cut the inner layers of syntheticcast materials or plaster.

Lister bandage scissors: These are stainless steel bandage scissors of high quality.The size of the blade is 5.5 centimeters. It resists rust and corrosion. Thisscissors are perfect to remove QuickCast splints and casts.

Cast scissors for serial finger casts: These aremanufactured from German stainless steel of highest quality. The total lengthis 9 centimeters. There is a 1.3 centimeters slant design on the cuttingsurface. During cast removal, there is good patient safety and the scissorsoffer excellent force.

Cast spreader: This has a stainless steel construction. There is a springloaded handle to facilitate use.

Cast breaker: Thelength of the cast breaker is seven inches. This is an O.R. quality Germaninstrument. This is used for lightweight cast breaking and trimming. This hasdeep serrated tips and is free of latex. The cast breaker is available in sizesof 9.5 inches also.

Plaster and Utility shears: The length of this instrument is 8 inches. This is a Germaninstrument of O.R. quality. There is a spring loaded handle design thatdecreases the hand fatigue. This is very efficient in case of cotton or clothwadding. It is free of latex.

Wire suture scissors: This is a stainless steel scissors of high quality. This isa perfect device to remove finger serial casts and to make tight corner cuts.

Fiskars all purpose snips: This instrument has a positivesafety latch, a stainless steel spring and a comfort grip. The design is suchthat there is maximum power and handling ease. The stainless steel blades ofhigh quality are used to cut a wide range of materials. Low temperaturethermoplastics can be cut at room temperature by this device.

Aviation snips: Thesesnips are of industry quality. Non-heated splinting material can be cut withefficiency. It can be used to cut straight lines as well as wide curves. Thehandles are coated with plastic to increase the comfort. This device can beused in the left hand as well as right hand.

Softouch spring action scissors: Those who have weakhands can also operate these by employing half the effort. There is a graycushion grip. This is used to provide relief to the finger and thumbdiscomfort. It also absorbs squeezing pressure. The handle can be easilygripped and used in the left hand or right hand. There is a gentle springaction to open blades at the end of each cut. This offers relief to the handand joints. There is a large slide lock for single handed operation. This alsomaintains the blades closed for portability and safe storage. It is free oflatex.

Cast stand: The height can be adjusted. This comprises of a dripbucket. While the limb is being casted, it provides support to the arm or legof the patient.