Anodizing Lines
24Pages

ANODIZING LINES The anodic oxidation system makes the treatment of aluminium profiles possible by means of immersion of the same profiles, hooked on to hangers and support bars, in the treatment tanks.

THE SYSTEM IS DIVIDED INTO FIVE ZONES 1 Holding area for bars to be treated before the process tanks. Process tank area. Holding area for bars treated before loading / unloading stations. Loading / unloading station area. Holding area for bars to be treated after the loading / unloa- ding stations. The anodic oxidation system (oxidation) is divided All the machines and system equipment are also into 5 parts, each of which is designated for a very monitored and controlled by software installed on specific phase of the process. A suitable handling the supervising PC (e.g. interfacing with the...

A “recipe” is assigned to each bar to be anodized The Electro-colouring treatment can be determi- that not only describes the types of treatments to ned both by the treatment time set as well as, in be performed (cycle), but also, in a precise way, general, the number of colour codes reached (the the time spent in each treatment and the manner colour is set, controlled and detected via the in- of execution of each movement between one tank Electro-colouring ends when the programmed cycle is completed. In addition to chemical or rinsing treatments (described simply by the length of stay in...

OVERHEAD TRAVELLING CRANE • Transfer controlled by the inverter with variable speed of up to 50 m / min. Maximum inclination for the dripping of profiles after each process stage. Clamping of the anodic bar during transport to avoid the oscillation of the pieces. Load guided in the ascent and descent phase for perfect centring in the tanks. Rapid hoisting and immersion of the pieces in the pre-treatment stages. Safety devices that prevent the release of the piece-holding bar from the overhead travelling crane in the event of mishandling, anti-collision safety, of depositing in locations...

LOADING AND UNLOADING STATIONS In order to facilitate attachment operations (and the final release), the system is equipped in situations of height adjustable loading and unloading. Operators may at any time move the piece holder bar up or down into the most comfortable position. Each station is made up of two vertical columns that contain the electrical and mechanical devices for ascent and descent: • self-braking gearmotor. guided trolley with wheels and bearings. transmission organs.

AUTOMATIC LOADER FOR LOADING AND UNLOADING STATIONS Automatic loaders placed in front of or behind the loading / unloading stations make it possible to automatically hold a full or empty anodic bar that is ready to be transferred, at the station without the dedicated help of crane. Loaders drastically reduce downtime and assist operators responsible for the attachment / release of profiles. TRANSFER TROLLEY To transfer the piece-holding bars from the load at the beginning of the line, up to the unloading at the end of the process, trolleys running on dedicated tracks are used.

MOVING DEVICE FOR PIECE HOLDING BAR The careful handling of components helps to achieve a surface finish that is free from defects. This is achieved by means of a motor-reducer connected to a system which makes it possible to move the piece-holding bar with an alternating motion (back and forth). INCLINED HOLDING The holding areas at the end of the cycle, after the last tank of the process, make it possible to maintain the load of bars treated in an inclined position. This system guarantees the profile the maximum dripping time before reaching the unloading area.

PNEUMATIC ELECTRICAL CONTACT SINGLE CLAMP In order to bring power to the anodic bar a special copper electric contact driven by a double pneumatic cylinder is used. This practical system reduces power loss, since the pressure generated by the cylinder is such as to maintain the surfaces of the anodic bar and those of the electrical contact constant, one against the other. DOUBLE CLAMP

EXCHANGE AND OXIDE CONTROL TEMPERATURE GROUP Special exchange groups are used for cooling the anodizing baths. These groups consist of pumps, heat exchangers, and three-way valves with motorised control. The pumps used are the type with vertical shaft and all parts in contact with the sulphuric acid are in acid-proof material. The plated heat exchanger is formed by two circuits: circulating in the first there is 20 % sulphuric acid to be cooled whilst in the secondary circuit cold water circulates in counter current coming from the well or from a suitable group refrigerator. EXCHANGE GROUP...

AUTOMATIC TEMPERATURE CONTROL GROUPS FOR BATHS On the lines of surface treatment of metals, there are several baths that must be heated by means of special heat exchangers or coils placed inside the tanks and in which steam or hot water is circulated. The automatic temperature control groups are available in two versions: • with three-way servo-valve-controlled for hot water. with two-way servo-valve-controlled for steam. Operators may at any time make go up or down the bar door pieces in the most comfortable position.

[SURFACE ANODIZING MICROPROGRAMMER] COMPUTERISED DETERMINATION OF OXIDE THICKNESS DURING THE ANODIZING PROCESS. MAIN FEATURES • Determination of the treatment times according to the thickness of oxide required. Automatic dosing of chemical solutions through connection to dedicated pumps. Temperature control of the tank through connection to a cooling pump. Pre-programmed voltage Set-point of the rectifier connected. DISPLAY NUMERIC AND ALPHANUMERIC KEYBOARD FUNCTION KEYS ETHERNET 100MPS ADDITIONAL FEATURES • HEAT EXCHANGER Can be connected to a remote supervising PC. Colour graphics for the...

[ELECTRO COLOURING PROCESS MICROCONTROLLER] THE EXACT REPRODUCIBILITY OF ELECTRO COLOURING AUTOMATICALLY. DISPLAY MAIN FEATURES • Viewing and monitoring of the formation of electro colouring in real time. Control of tank thermoregulation through connection to a heat exchanger. Print out of data and parameter graphs of each treatment cycle. Automatic dosing of chemical solutions through connection to dedicated pumps. Real-time display of temperature, voltage and current in the tank. NUMERIC AND ALPHANUMERIC KEYBOARD FUNCTION KEYS PROCESS CONTROL • EXPANDABLE SYSTEM: Possibility of connecting...