Steel Plate Preservation line

The steel plate pretreatment line refers to the processing technology in which steel is shot blasted to remove rust on its surface and coated with a layer of protective primer before processing. Through pretreatment, the corrosion resistance of mechanical products and metal components can be improved, the fatigue resistance performance of steel plates can be enhanced, and their service life can be prolonged. Meanwhile, it can also optimize the manufacturing state of the steel surface, which is conducive to the blanking of the CNC cutting machine and precision blanking. In addition, as the shape of steel is relatively regular before processing, it is beneficial for mechanical rust removal and automatic painting. Therefore, the adoption of steel pretreatment can greatly improve the efficiency of the cleaning work, reduce the labor intensity of the cleaning work and the pollution to the environment.

On the steel plate pretreatment line, computer monitoring, the simulation screen of the monitoring center, closed-circuit television monitoring are adopted, and the automatic coding instrument and automatic barcode printing device can be configured according to the requirements of users.

Product Details
F.A.Q

The main units of the preservation line:
Workpiece Conveying System

The workpiece conveying system features variable-frequency stepless speed regulation. Each working section can operate synchronously or independently.

The roller table in the shot blasting chamber is equipped with wear-resistant protective sleeves made of special materials.

The plate chain conveyor has a V shaped structure. After the steel plate is painted, it has short-line contact to avoid damage to the paint film.

Shot Blasting Cleaning

For workpiece height measurement, photoelectric switches and braking motors are used outside the shot blasting chamber to prevent dust interference.

The workpiece width measurement device can automatically adjust the opening quantity of the shot supply gate.

Advanced cantilever centrifugal shot blasting machines are adopted, and the layout of the shot blasting machines is designed through computer simulation. The shot pellets avoid the roller table, and the workpiece is evenly covered.

Shot Pellet Sweeping

Rolling sweeping, side sweeping and high-pressure fan blowing are carried out.

Shot Pellet Circulation and Purification

A full curtain air separation separator is used.

A special polyester wire core elevator conveyor belt is adopted.

A pneumatically controlled shot pellet controller is used.

The power points in the shot pellet circulation system are equipped with a fault alarm function.

Shot Blasting Dust Removal System

An integrated cyclone and bag dust collector is selected, and the dust emission meets the national standards.

Spray Painting Chamber

There are two high pressure airless spray painting pumps, with one as a backup.

Standard linear guide rails are used to support the trolleys, and the two ends of the trolley's travel are equipped with variable-frequency buffers.

Drying Chamber

Various medium heaters (or burners) can be adopted, with hot air circulation to make full use of heat.

The temperature of the drying chamber is adjustable within the range of 40 to 70 degrees Celsius.

Paint Mist Filtration Device and Harmful Gas Purification Device

Advanced paint mist filter cotton is used to filter paint mist.

Activated carbon is used to adsorb harmful gases.

Electrical Control System

It is controlled by PLC, and the upper computer (microcomputer) conducts dynamic simulation monitoring.

The circulation system has a fault alarm function.

There is a cumulative timing function for the service time of wearing parts.

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