In 2002, 321 all-terrain mobile cranes were sold. Although 48 vehicles were sold in the first quarter of 2003, a 30% decrease from the same period in 2002, according to experts, the final sales in 2003 are close to 300. According to the state-owned engineering construction plan formulated by the Spanish government, the good situation in this market has continued until 2007.
The reconstruction and expansion of roads and railways in Spain, and the infrastructure construction of seaports and airports will continue to increase. The government has invested 30 billion pesetas (Spanish currency) to build a high-speed railway between Madrid and Barcelona, ​​and extended to Portugal; invested 9 billion pesetas in Madrid to build a new airport; also vigorously develop wind power, investing 900 million a year Seta has built three wind farms, each of which has built thousands of wind turbines to generate electricity, generating a total of 4,144 MW (million watts). It is expected to build thousands of winds by 2010. Turbine power generation, with an additional generating capacity of 1 1500 MW (million watts).
Since these projects require mobile cranes, especially for the construction of wind power plants, which require large cranes (generally 300-500 tons of mobile telescopic cranes), the prospects for mobile cranes in Spain will be considerable.
A few years ago, the Spanish market was selling second-hand truck cranes or uneven-surface cranes. Now, due to the government’s increased investment in construction projects, users have the money to buy new all-terrain cranes, especially the high-performance all-terrain roads made in Germany. crane.
The average user buys all-terrain cranes, most of which are concentrated in the type between 50 and 100 tons. The relatively large demand is small. For example, Grove sold three 200-ton GMK5200 all-terrain cranes in the Canary Islands; Liebherr has sold 10 LTM1500s with a weight of 500 tons in the wind turbine manufacturing industry in recent years; 2002 In the year, De Morgan sold a 650-ton AC650 all-terrain crane to La Coruña.
Cobalt-based alloy powders are commonly used in laser cladding processes due to their excellent wear resistance, high temperature strength, and corrosion resistance. These alloys typically contain varying amounts of cobalt, chromium, tungsten, and nickel, among other elements, to achieve specific properties.
The laser cladding process involves melting the cobalt-based alloy powder using a high-energy laser beam and depositing it onto a substrate to form a protective coating. This coating helps to enhance the surface properties of the substrate, such as hardness, wear resistance, and corrosion resistance.
Some common cobalt-based alloy powders used in laser cladding include:
1. Stellite: This is a well-known cobalt-chromium-tungsten alloy that offers excellent wear and corrosion resistance. It is often used in applications where high temperatures and abrasive environments are present, such as in oil and gas drilling tools, valves, and pump components.
2. Tribaloy: Tribaloy alloys are cobalt-based alloys that contain varying amounts of chromium, molybdenum, and silicon. They are known for their exceptional high-temperature strength and resistance to galling, making them suitable for applications in the aerospace, petrochemical, and power generation industries.
3. Haynes alloys: Haynes alloys are nickel-cobalt-chromium-molybdenum alloys that offer excellent high-temperature strength, oxidation resistance, and corrosion resistance. They are commonly used in applications where extreme heat and corrosive environments are present, such as in gas turbines and chemical processing equipment.
These cobalt-based alloy powders are available in various particle sizes and can be tailored to meet specific application requirements. They can be used with different laser cladding techniques, such as powder-fed laser cladding or blown powder laser cladding, depending on the desired coating thickness and properties.
Overall, cobalt-based alloy powders for laser cladding provide enhanced surface properties and improved performa
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