|
In recent years, thermal spraying has become increasingly important, both in the manufacturing of new parts and in the repair of existing parts.
Thermal spraying is a surface coating technology which combines a variety of positive characteristics.
- Numerous base and coating material combinations
- High grade materials coating onto lower cost base materials
- Repair instead of replace expensive components
- Many thermal and mechanical energy process combinations for just the right effect.
Two types of energy are required to spray on a coating: thermal and kinetic. Both of these energies are generated trough gases.
The move towards dense layers has resulted in equipment where the kinetic energy rises in line with reduced thermal input. The evolution of high-velocity thermal spray methods has led to Cold Gas Spraying where the surface material is propelled and plasticized as it hits the substrate, thus combining with the basic material. This procedure is similar to explosion welding.
Spraying is a real money saver and easy to carry out. For an exact surface finish, all you need is a flame, an electric arc/plasma or laser and the right coating material. It improves resistance to wear, corrosion and heat. You can even use this process to increase or decrease friction or change the electrical properties of the surface. Damaged surfaces can be repaired and faulty parts can be redimensioned. In most cases, the surface can easily be post –treated.
LINSPRAY® – CO2 cooling
The LINSPRAY® CO2 cooling system was developed for use in conjunction with thermal spraying but it is also ideal for temperature control during grinding, welding and machining.
Air or CO2 are generally used as cooling agents for thermal spraying. In certain cases, liquid nitrogen is also suitable.
CO2 is the most effective dry cooling agent. CO2 snow is also a highly effective cleaning agent. Special CO2 nozzles have been developed to enable uniform, directed and continuous cooling results.
LINSPRAY® - CO2 cooling kits
LINSPRAY® systems consist of a CO2 withdrawal valves, safety valves, a pressure gauge, a high-pressure hose and a solenoid valve with a fine filter, an expansion nozzle and a control panel. Various nozzle sizes are available to suit individual application needs. These nozzles are designed to intensify or reduce the cooling effect. |
