The laser of green laser pointer contains 50mW green laser (532nm) and100mW red laser (650nm)

According to the theory of the solid phase transformation and chemical bonds in the coating to add some element of cable, ceramics and substrates to produce the chemical reaction to form covalently bound to improve the interface strength at the interface. , Depending on the alloy modes of supply, laser cladding can be divided into two types: synchronization alloy and alloy front method. Substrate cladding surface preparation. In order to remove dirt and corrosion of the substrate cladding parts. Preheat and post heat treatment. Its role is to prevent the martensitic transformation of the heat affected zone of the substrate resulting in the cracks of cladding layer, therefore, appropriate to reduce the temperature difference between the substrate and cladding layer to reduce the cladding layers expand and contract to produce the stress increase melting layer of liquid retention time can be beneficial to exclude air bubbles within the melt layer and slag material. The single projection green laser pointer will be shown.
The actual production process are often used in warm-up method to eliminate or reduce the crack of the cladding layer, especially for easy-to-cracking of the substrate must be preheated in the cladding layer cracking tendency is smaller, and sometimes also used to preheat reduce the melting overburden stress and improve the cladding quality. Preheated flame gun heating, induction heating and stove heating, the first two heating preheating the substrate surface within a certain range, and can be carried out simultaneously preheating and laser cladding. Laser cladding co-layer hardness decreased due to the warm-up reduces the surface of the cooling rate, it may cause, but for some alloys (Ni alloy, etc.), you can restore its hardness by subsequent heat treatment. The quintuple projectiongreen laser pointer will also included.

The main problems in laser melting management cladding layer surface is not flat, the follow-up machining a large amount of the junction of the alloy layer and the substrate is prone to defects such as cracks and holes, a great deal of difficulty to the practical application. At present, the laser processing system of fixed assets and the cost of maintaining relatively conventional surfacing and spray coating is more expensive, higher product costs which makes the laser-treated, laser cladding processing on a large scale in the oil field the practical application of one of the main reasons. In summary, laser cladding processing is a rapid solidification technique, which can produce the excellent organization and performance can not be obtained in the equilibrium. Substrate unlimited design coating composition according to the use of performance requirements. The spot matrix distribution ofgreen laser pointer is also very attractive.
Performance of high-alloy steel surface can be prepared on the cheap steel and high strength and the bonding is unmatched by other surface treatment processes, particularly suitable in oilfield corrosion, friction and wear of the working conditions common vulnerability parts of the surface treatment and repair. Although there are still some problems in the application, but with the people of their theoretical and technical research gradually in-depth and tend to improve, I believe will in the near future in the industry dig out of its enormous potential and far-reaching impact. Laser alloying (Laser Surface Alloying, LSA) is a new method of local modification of metal surface processing, laser alloying process belongs to the scope of the material surface modification. The laser of green laser led contains 50mW green laser (532nm) and 100mW red laser (650nm).