Tin bronze plate electric spark production process

Tin bronze plate has the characteristics of fast production rate, high production quality and low cost of electrical materials. Therefore, there are obvious advantages in the precision production of high speed molds and difficult materials. Tin bronze plate as a tungsten and copper material made of electric spark, both delicate electrical and thermal conductivity function, together with a very good anti-spark depravity function, and the material structure to be very uniform and fine. Tin bronze plate shall be stored in clean and dry warehouse according to composition and brand, and shall not be put in stock with acid, alkali, salt and other materials.

Tin copper plate, such as damp in transport, should be dried with cloth or dried in the sun after stacking; The warehouse should be ventilated, adjust the humidity and temperature in the warehouse. Generally, the temperature in the warehouse should be kept 15~30℃, and the relative humidity should be kept about 40~80. Electrolytic tin bronze plate because of unwashed residual electrolyte, so it can not be mixed with rubber and other acid-phobic materials; Due to the soft tin bronze plate, handling and stacking should avoid pulling, dragging or falling, throwing, knocking, touching, so as not to damage or hurt the surface.

If the tin bronze plate is found to rust, use linen or tin bronze tube wire brush to wipe, do not use steel wire brush, to avoid scratching the surface. Tin bronze plate has good yield strength and fatigue strength; Good elastic property; Excellent machining formability and bending performance; It has good ductility, durability and corrosion resistance. It is a non-ferrous metal alloy with very small shrinkage. It is used to produce castings with complex shape, clear outline and low air tightness requirements.

In the process of EDM production, the electrical material sends the production pulse and erodes the workpiece at a small cost of its own. Tin bronze is corrosion-resistant, wear-resistant, has good mechanical and technological properties, and can be welded and brazed well, without sparking when impact. It is divided into processed tin bronze and cast tin bronze. The content of tin bronze used for pressure processing is less than 6%~7%, and that of cast tin bronze is 10%~ 14%.