Brief introduction of wire drawing process
In metal pressure working. Under the action of external force, the metal is forced to pass through the die, and the cross-sectional area of the metal is compressed to obtain the required cross-sectional area shape and size. This technical processing method is called metal wire drawing process. Let it change shape. The size of the tool is called the drawing die. For example, in the cable industry, 8mm copper rods are drawn into 3.5 mm and 2.0 mm copper wires by a group of (5~8) wire drawing dies from large to small.
Machining surface treatment: wire drawing is a method of reciprocating wire drawing cloth and rubbing it back and forth on the surface of workpiece to improve the surface smoothness of workpiece. The surface texture is linear. The surface quality can be improve, and slight scratches on that surface can be cover.
Characteristics of wire drawing process
In order to break through the designer's restrictions on the use of decorative materials and meet more creative needs, in the new century, human beings have affirmed themselves, explored the unknown, and developed and designed gold and silver brushed decorative metal plates with both knowledge and scientific and technological spirit.
Such products include gold wire drawing, silver wire drawing, snowflake sand and sandblasting surface, which can fully reflect the heavy metal feeling that gold and silver are difficult to express in other plates. Gold and silver are rich colors and status symbols. The main metal materials used for decorative metal plates with gold and silver wire drawing can be divided into three categories: aluminum, copper and stainless steel. Based on the texture, luster and characteristics of the original metal form, various surface treatments such as matte surface, mirror surface, three-dimensional, relief, and special wood skin metal thread surface are applied. According to the designer, it has a brilliant effect on different occasions.
The function of wire drawing process
The surface of metal plate has the characteristics of rust prevention, oxidation resistance, scratch resistance, chemical resistance and smoke resistance. Appearance, because the surface of the product itself is particularly bright, in order to avoid losing luster due to friction, it is recommended to apply it on a horizontal surface or a general vertical surface with low friction. In addition, this product is recommended to be used in a dry place, or in a place where the moisture is not frequent and heavy, so as to maintain the stability of the product. Wire drawing on metal surface can cover up mechanical lines and mold clamping defects in production.
Classification of surface effect of wire drawing plate
Generally speaking, wire drawing board refers to the surface texture plus a general term. Formerly called sanding board, the surface grain has straight grain, random grain (and grain), ripple and line grain.
1, drawing a straight line is usually done by mechanical friction treatment on the stainless steel surface to get a straight line on the surface. The processing of wire drawing plate can eliminate the scratches on the surface of stainless steel plate raw materials, and also has a good decorative effect. This pattern also includes fine thread pattern and short silk pattern, because this pattern uses scouring pad or stainless steel brush to draw straight lines or short lines on the surface of the plate, and different thickness patterns can be obtained by changing the diameter of the steel brush.
2. The sand lines of random lines (sum lines) in wire drawing are composed of circular sand lines from a distance, and the irregular random lines near are polished by the irregular swinging of the grinding head up and down, left and right, and then plated and colored. The surface of this grain is matte, and the requirements for production are also very high.
3. The manufacturing process of wire drawing corrugation is to make use of the axial movement of the upper group of grinding rollers on the brush mill or the rubbing machine to get corrugation on the stainless steel surface after brush grinding.