The casting process in line to see the very general, to the key technical problems, just passing. Is there a detailed process method?. Thank you
Wow, a lot. Then you take a slow look. A block rule, a block method, or a clay law, was first used in the Shang and Zhou dynasties, and it was the most widely used method of bronze casting. The method is briefly introduced as follows: a casting container is taken as an example, and a model for casting objects is first made. The model on the casting process or die also known as Mother Teresa; with mud deposited in the model outside the mold for forming casting prolapse part outline, on the casting process known as van, van to split into several pieces, so that from the die off; in addition to the earth a volume of the inner cavity of the vessel a fan, often referred to as the core, or called the heart, then make the internal and external fan; fan cover, the middle of the gap is cavity, the interval is to cast objects thickness; finally will melt copper fluid into the void, the copper liquid cooling fan is removed, inside and outside to cast artifacts.
(2). The fan system fan selection and preparation of mud wants appropriate. The main ingredients are soil and sand. Generally speaking, the clay content of fan is more, the core contains more sand, and the particle is coarser. And in the two, also mixed with vegetable material, such as grass sawdust, to reduce shrinkage, and conducive to breathability. Soil preparation of van must be extremely careful, after drying, crushing, sieving, mixing, and add the appropriate water, the hard and soft mud into moderate, after repeated rubbing, beating, and after a long time of infiltration, make qualitative. So do the mud in turn van Shicai handy. Turning from the mold to the technical model is very strong, and it is the central link of the block casting technology. For more simple solid objects like knife, Gorbachev, arrowheads, only the model can turn two van, the van called two fan. The container for making hollow containers is much more complicated, and Jane's is as follows: 1. before turning over the fan, it is first necessary to decide where the outer fan should be divided into several pieces and where they should be divided. 2., the method of turning out the outer fan is to use the clay mold to pile up on the mold, and then press hard.
The concrete process of 1. block casting and the method of casting (1). The die is also called "mother mould", and the material can be made of Tao Huomu, bamboo, bone and stone. The cast bronze is also used as a model. The concrete selection of bell material depends on the geometry of the casting, and the convenience of pattern engraving and plastic molding shall be taken into account. Generally speaking: the slender shape of flat, cut, can use bamboo, wood cut from the system; small birds animal body can use bone, stone carving to die; for relatively large, thick shape Ding Yi Zhu, can choose to dial the plastic clay. From the excavation, the pottery is the most common. The mud clay content can be more Tao fan, mix to burn soil powder, charcoal powder, straw or other organic matter, water content and master good deployment of clay materials, which have low shrinkage and appropriate permeability, in order to avoid because of plastic after drying and roasting and cracked phenomenon. The surface of the ceramic mold must be careful and firm so that it can be carved on it. After molding, the clay mold should be dried gradually at room temperature, and the ornamentation shall be carved when it is dried to proper hardness. For the precise layout, specification and decoration, the first general in wadding with pencil drafting and then carved, high table patterns with mud plastic forming on the surface, and then the carved. When the clay mold is made, it must be placed in the kiln and baked into a ceramic mold to be used for turning over.
