Brief introduction of FRP sculpture
The glass fiber reinforced plastic sculpture is a kind of finished product, and the glass fiber reinforced plastic sculpture has the characteristics of light weight, corrosion resistance and low cost. Glass fiber reinforced plastic, also known as FRP, said fiber reinforced plastics, the domestic habits of glass fiber reinforced plastics. The composite material is made of synthetic resin as matrix material and glass fiber and its products as reinforcing material.
Glass fiber reinforced plastic sculpture making process
Glass and steel sculpture production before the first to make a product built to make products with special clay materials in clay draft after completion of production, manufacturing gypsum mould, and then glass steel (i.e., resin and glass cloth combination) coated on the outer mold. After the opening of the external mold, etc., after the procedure of mold, glass fiber reinforced plastic products. But the glass fiber reinforced plastic sculpture in the outdoor sun exposure and wind erosion, generally more than five years began to have deformation, vulnerable to crack defects.
Glass fiber reinforced plastic sculpture is a kind of finished product. With light weight, corrosion resistance, low cost characteristics. Glass fiber reinforced plastic, also known as FRP, said fiber reinforced plastics, the domestic habits of glass fiber reinforced plastics. The composite material is made of synthetic resin as matrix material and glass fiber and its products as reinforcing material.
Method for producing glass fibre reinforced plastic sculpture
Basically divided into two categories, that is, wet contact and dry compression molding. According to the characteristics of the process, there are hand paste molding, laminated molding, RTM method, extrusion, compression molding, winding molding, etc.. Hand paste forming includes hand paste method, bag pressure method, spray method, wet paste low pressure method.
Currently the world's most used molding methods have the following four.
Hand paste method: the main use of the state of Norway, Japan, Britain, Denmark, etc..
Jet method: the main use of the country, Sweden, the United States, Norway, etc..
Molding method: the main use of countries such as germany.
RTM (resin transfer molding): the main use of countries in Europe and the United States, japan.
Also: filament winding forming Fala extrusion molding and hot press molding method, etc.
China has more than 90% of the FRP products are hand paste production, other molding, winding, laminating, etc.. Japan's hand paste still accounts for 50%. From the point of view of the world, hand paste still accounts for a considerable proportion, indicating that it still has vitality. The method is characterized by the use of wet resin molding, simple equipment, low cost, can be more than 10m paste the whole product. The disadvantage is the low degree of mechanization, the production cycle is long, the quality is not stable, China imported from abroad, such as extrusion, spraying, winding and other equipment, with the development of FRP industry, the new process will continue to appear.
FRP sculpture production process
1, cutting material. The general use of the tool is the electric scissors, it can be Cut 2mm below the sheet, but after the cut is not good flatness. There are cutting plate, thick plate, sheet can be cut out, but can only cut straight line, encountered the arc can do nothing. To make the stainless steel sheet cut off both flat and a variety of shapes, it is necessary to use plasma cutting machine. Plasma cutting function of the use of high ions to cut with ordinary oxygen cutting difficult to cut metal. Due to the special nozzle current and gas into water cooling, resulting in a strong compression arc formed high temperature (ten thousand degrees) plasma flow, so that the stainless steel plate cutting out neat and no deformation. Note that when the hand must be stable, otherwise it will cut the material. After cutting the material, it is necessary according to the requirements of the work of the body planing. Don't let the board have flawed, so as not to leave any defects in the works after polishing.
2, the production of carbon steel sculpture, stainless steel sculpture of a method. Carbon steel, stainless steel plate does not get the mold honest to knock, but according to the different parts of each plaster model shape material, in accordance with its ups and downs, conscious beat, the curved edge of the place where the clinched, knock edge, in any tangible solid objects for tapping then knock on the stainless steel plate get good die up, think form correctly and completely with the model, and then put these scattered carbon steel plate, stainless steel plate welded together from top to bottom pieces, each connected to a block to adjust each mold, the surface of the stainless steel plate to maintain the texture effect this must be the same, while forging shaping up. Can also be a good point and then cut the material. When you want to use a hammer to hammer the head evenly and regularly arranged in a row, the width and distance, the size of the force should be consistent, do not know how to knock, otherwise it will undermine the overall sense of sculpture.
3, the body forging correctly, according to the requirements of the works to be welded together (with electric welding and argon arc welding). Welding to prepare electric welding machine, welding, electrode. Due to the welding of a high degree of light, the eyes have strong stimulation, so wear a protective cover, to avoid being hurt by the strong light. With electric welding, stainless steel plate with a larger degree of thermal deformation, so to take some measures, such as the first spot welding or side cooling. Argon arc welding is superior to the welding process. It is a kind of gas shielded arc welding method, which is used to protect the metal from the arc by argon and avoid the harmful effects of oxygen and nitrogen in the air. Argon arc welding can be divided into two parts: the melting electrode argon arc welding and the non melting pole arc welding or the tungsten electrode argon arc welding. Because it is not easy to heat conduction,