"Batik fabrics" Case set consisting of 3 luxury cases from Java / Indonesia.

Bronze circle of friends entirely hand-cast in Papua New Guinea.

Bronze circle of friends entirely hand-cast in Papua New Guinea.

Bronze circle of friends entirely hand-cast in Papua New Guinea.

We know circles of friends from terracotta among the Mayas, soapstone circles of friends among the Kishis, but also among ancient civilizations such as the Papueas & Asmat.
Availability: In stock
SKU
10370
Bronze circle of friends entirely hand-cast in Papua New Guinea. is available to buy in increments of 1

There are several methods and methods possible for casting bronze. The following attempts to summarize the basic steps. A model is made, usually of wax. but if a rubber mold is made of it, it can also be made of clay, plaster, plastic or even wood or stone. The wax used for this is usually casting wax, paraffin or modeling wax. With small wax models, the watering can can immediately proceed to the next step. With larger models or with models made of clay or plaster, for example, a hollow wax model must first be made. To this end, the watering can usually makes a rubber mold with a plaster support cap, which ensures that the rubber mold retains its shape. Various materials can be cast in this rubber mold at a relatively low temperature, such as casting wax or plaster. In this case, a hard wax cast is needed, which is already at the thickness of the final bronze. Above a certain thickness it becomes difficult to cast bronze in solid form, due to uneven shrinkage of thicker and thinner parts. The watering can pours liquid wax into the rubber mold until a layer of wax has set in the mold at the correct thickness. The remainder is poured off to form a hollow wax cast. This (hollow) casting is provided with wax protrusions that will later serve as pouring channels for the supply of the bronze and venting channels for the removal of the air in the mold. The wax casting, including channels, is covered inside and out with a refractory mass. This can be a mixture of plaster and chamotte or another shrink-resistant and refractory material. Stainless steel core supports ensure that the distance between core and outside remains the same. The finished mold is heated in an oven for a long period of time to melt out the wax and remove all moisture from the mold and, if it is plaster, all chemically bound water. A dry mold has now been created with a cavity in the shape of the model with sprues. Liquid bronze is poured into it. After cooling, the channels are sawn away and the casting is finished: burrs and protrusions are ground away and holes and unwanted cavities are hammered or welded closed. To protect against oxidation and for embellishment, bronze castings, particularly sculptures, often have a patina layer applied with chemicals, the so-called patination.

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Dimensions 65x190mm
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