4results about How to "Increased contact surface area" patented technology

The application belongs to the technical field of copper foil and particularly relates to a copper wire forming device, which comprises a spraying part provided with a liquid spraying opening, the spraying part being capable of spraying a drawing liquid to the copper wire through the liquid spraying opening; and an extrusion assembly arranged on one side of the spraying part, the extrusion assembly being capable of forming a protrusion on the surface of the copper wire sprayed with the drawing liquid. The application can relieve the drawing stress by spraying the drawing liquid before the protrusion is formed on the surface of the copper wire, so as to avoid the rupture of the copper wire and ensure the continuity of the copper wire winding disc.

The utility model relates to mould technical field, and disclose a kind of calcium silicate cement board production forming mould, comprising: base and two pieces of side stop, side stop is detachably connected with base and forms a frame body on the top of base, and casting cavity is formed inside frame body;Cooling structure, set in the inside of base for cooling base and cement board, cooling structure includes heat dissipation cavity, water inlet pipe and reflux pipe, heat dissipation cavity is opened in the inside of base, water inlet pipe and reflux pipe are fixedly connected with base and communicate with heat dissipation cavity, water inlet pipe is connected water source, by connecting water source to water inlet pipe, reflux pipe connects water pool, water pump can be set in water pool, water circulation is realized by water pump to water inlet pipe, radiator and other cooling components still need to be set in water pool, not repeated here, by the water of circulation, heat of base and cement board bottom is taken away, improve the heat dissipation speed of cement board bottom, inhibit cement board bottom heat accumulation, reduce the probability that cement board quality is influenced due to temperature difference too large.

The utility model discloses an inner octagonal pipe belongs to pipe material technical field, including the pipe body of octagonal structure, the inner chamber of pipe body also is octagonal structure, the pipe body includes work section, flared connecting section and embedded connecting section, is equipped with the transition section between work section and flared connecting section, and flared connecting section and transition section are located one end of work section, and embedded connecting section is located the other end of work section, flared connecting section, transition section work section and embedded connecting section integrated molding. The pipe body of octagonal structure in the utility model, compared with the circular pipe body, has increased the contact surface area between pipes, and is more stable in storage and transportation, is convenient for safe stacking, and the contact pressure between pipes is small, and the pipe is not easy to deform, the pipe cavity of octagonal shape, and the traditional circular pipe cavity of same inner diameter is greater than the pipe cavity capacity, and the drainage capacity is increased, the first wave crest on work section M type or n type increases the surface area of contact with the outside, and the pressure intensity that the pipe body receives reduces, and the service life is improved.