A floor plate easily coated and assembled comprises a circular indication plate. The back face of the indication plate is a flat face, and the front face of the indication plate is provided with a floor number for indicating people. A connecting hole is formed in the upper portion of the indication plate. The indication plate is fixed to a wall after a bolt penetrates through the connecting hole. The lower portion of the indication plate is connected with a protecting sleeve. The two ends of the protecting sleeve are provided with claws. The claws are fixed to the wall through bolts. The lower portion of the indication plate is fixed through the protecting sleeve, so the indication plate is high in firmness relative to the wall. Meanwhile, by means of the bolt fixing mode, subsequence replacing and maintaining are facilitated. The floor plate is characterized in that the surface of the indication plate is coated with anticorrosion paint through an electrostatic coating process. The floor plate is simple in structure, novel in design, attractive and elegant in appearance; through the improvement of the electrostatic spraying process and the paint formula, the prepared floor plate has excellent chemical resistance, weather resistance and high coating performance.

Floor plate easily coated and assembled

A corrosion-resistant household mailbox comprises a main panel; a box body used for storing letters and newspapers is connected to the rear of the main panel; a newspaper box panel is arranged at the front end of the box body; the newspaper box panel is installed on the main panel and provided with a newspaper box lock; a delivery port is formed in the upper portion of the newspaper box panel and is a long-strip-shaped delivery port; a delivery port panel is installed on the delivery port which is covered with the delivery port panel; the two ends of the delivery port panel are connected to the main panel through pin shafts so that the delivery port panel can be lifted up and delivery can be convenient, and meanwhile the rainproof and dustproof effects are achieved; the main panel, the newspaper box panel and the delivery port panel are all coated with corrosion-resistant coating through an electrostatic spraying technology. The corrosion-resistant household mailbox is simple in structure, novel in design, attractive and elegant in appearance, the mailbox has excellent chemical resistance and weather resistance and high decorative performance by means of the electrostatic spraying technology and improvement of a coating formula.

Corrosion-resistant household mailbox

The invention relates to a surface-spot-preventing plastic powder spraying process suitable for the moistening condition. A to-be-sprayed workpiece is subject to primary degreasing through a degreasing agent, washing, secondary degreasing with sodium carbonate, surface tempering, phosphating, secondary washing, passivating treatment, air drying and workpiece hanging treatment in sequence, and only an anticorrosive protection film is arranged on the surface of the to-be-sprayed workpiece; the humidity keeps to range from 40%RH to 50%RH, the static voltage ranging from 55 KV to 60 KV and the static current ranging from 5 uA to 10 uA are applied to a spraying gun, plastic powder sprayed through the spraying gun carries static and is attracted to the surface of the to-be-sprayed workpiece, the steps of solidification leveling and cooling are executed, and therefore the workpiece with the poor phenomenon like spots on the surface can be avoided under the moistening condition; and the problem that application of an existing plastic powder spraying process is limited to air humidity is solved.

Surface-spot-preventing plastic powder spraying process suitable for moistening condition

The invention discloses a dimension chain control and surface powder spraying technology of a slewing bearing. The dimension chain control of the slewing bearing comprises the steps of feeding, rough machining, fine machining, QPQ salt bath composite treatment and powder spraying to obtain a dimension chain; and the surface powder spraying of the slewing bearing comprises the steps of degreasing, cleaning, phosphatizing, cleaning, passivating, electrostatic spraying of powder, solidification and cooling. The technology using powder spraying realizes very good corrosion, impact and wear resistance effects, and when a powder sprayed layer is impacted, the powder sprayed layer deforms, does not peel and does not lose the corrosion resistance, so the service life of the slewing bearing is effectively prolonged; and dimension chain and cooperation requirements can be met through dimension chain control to realize a best assembling effect, so the reliability of the slewing bearing is improved, and the popularization use is easy.

Jin Jiao

Papers

Dimension chain control and surface powder spraying technology of slewing bearing