108results about How to "Uniform spraying effect" patented technology

The invention provides a thin and long inner hole workpiece spraying construction device and a spraying method adopting the thin and long inner hole workpiece spraying construction device. The thin and long inner hole workpiece spraying construction device comprises a main support and a spray head support. The main support comprises two coaxially arranged main support end plates (8), and the two main support end plates (8) are fixedly connected to form a whole. At least three radially arranged telescopic supporting legs (2) are fixedly arranged on each main support end plate (8). Rollers (7) are fixed to the ends, away from the main support end plates (8), of the telescopic supporting legs (2), and therefore the main support can move in a thin and long inner hole in the length direction ofa spindle (1). The spray head support can move in the length direction of the spindle and can rotate around the surface of an inner hole of the spindle (1). The spray head support is rotationally fixed to the main support. The distance between a spray head and the surface of a workpiece can be kept constant, and therefore the effect of homogeneously spraying all the positions of the surface of the inner hole is kept. In addition, the device allows construction to be carried out from one side of the inner hole of the spindle, and the surface of the whole inner hole of the spindle can be continuously sprayed.

The invention discloses a spraying device based on a heat-absorbing coating of a solar vacuum tube, which comprises a main body, the main body is provided with a gluing chamber with an opening forward, and a first placement is fixed on the bottom wall of the gluing chamber. Seat, the top surface of the first placement seat can place a vacuum tube, the first placement seat can slightly clamp the vacuum tube, and the upper side of the vacuum tube is provided with a clamping block that can press against the inner wall of the vacuum tube, so There are two groups of clamping blocks symmetrically arranged on the left and right. The invention can make the spraying process of the heat-absorbing coating on the outer periphery of the solar vacuum tube more convenient and easy. Just place the vacuum tube in the device, and the device can directly and automatically run the one-step forming spraying process. And the spraying effect is more uniform and perfect, and the whole inventive device makes the spraying process more green and environmentally friendly, ensuring the personal safety of operators.

This invention discloses a strippable coating for laser shock processing, which is composed of carbon powders 5-15 wt.%, bonding agent 50-70 wt.%, self-drying thinner 15-35 wt.% and additive 2-5 wt.%. The thickness of the coating layer is generally 60-150 mums. The strippable coating is manufactured by: (1) placing carbon powders in a reactor, and adding bonding agent, self-drying thinner and additive; and (2) stirring uniformly, and adjusting the pH value to 7.5 with 25% ammonia solution. The strippable coating can intimately adhere to the surface of metals, and cannot be stripped during continuous laser shock process, thus having a good shock effect.