Introduction To Hvof Coating - China

Valve Gate: The core parts of flat gate valves used in the petrochemical industry require high pressure, wear resistance, corrosion prevention against H2S and CO2, especially wellhead and Christmas tree valves have higher requirements.

Brief Introduction of HVOF TUNGSTEN CARBIDE COATING

High-velocity oxygen-fuel is a new thermal spray technology invented by Browing in the United States in 1981 - Nowadays, it is generally called HVOF (High-velocity oxygen-fuel).

The flame generated by this technology is a high-temperature, high-speed combustion flame flow generated by using a hydrocarbon-based gas or hydrogen such as propane or propylene, and high-pressure oxygen in a combustion chamber or in a special nozzle.

The velocity of the combustion flame can reach more than five Mach (1500 m/s).

The axial direction of the powder is fed into the flame, and the sprayed particles can be heated to a molten or semi-molten state.

Accelerate the velocity of the combustion flame to a speed of up to 300-500 m/s or even higher, resulting in a high-density, dense, high-quality coating.

The HVOF has a high speed, but the temperature is relatively low, about 300 ° C.

For the spraying of WC-Co cemented carbide, the decomposition of WC during spraying can be effectively suppressed.

The coating not only has high bonding strength, but also has excellent compactness and abrasive resistance.

The abrasive resistance of the coating greatly exceeds that of the plasma sprayed layer, which is equivalent to the explosive sprayed layer and exceeds the hard chrome layer and the sprayed layer.

The range of applications is extremely wide.

Company Contact:

• Posted By: Suzhou Kaitianfu Machinery Co., Ltd

• Phone: 86-0512-66532885

• Address: Linhu Cailian Industrial Park, Wuzhong District, Suzhou , Jiangsu , China

• Email:

• Website: https://www.coatingvalve.com

• Business Description: Suzhou Kaitianfu Machinery Co., Ltd. was established in January 2011, which is located in Wuzhong District, Suzhou City, Jiangsu Province, close to Taihu Lake .
  
  The scenery is beautiful and pleasant.
  
  We hold the business philosophy "customer first, Integrity management, social service ", adhere to the " Providing perfect service, Creating value, Achieving win-win " enterprise tenet .
  
  With advanced equipment, superb technology and perfect service we are rapidly rising in API6A series products and the thermal spray area , and have won good reputations in industries.
  
  We have been mainly engaged in thermal spraying API6A series products(for example, GATE and SEAT) and various mechanical parts.
  
  Our products is widely used in areas of the petroleum, natural gas, chemical industry, papermaking, electronic power , etc.
  
  We are especially good at machining and spraying of valve parts to achieving wear-resistance, corrosion-resistance, high temperature-resistance based on different working conditions.
  
  To ensure the quality of products, we continuously introduce advanced technology and equipment.
  
  Now our company has been equipped with the advanced HVOF JP8000 which is made in USA, the robot's automatic control system, various types of CNC machine, grinding equipment, polishing equipment and other processing equipment.
  
  We can effectively control the quality of products with a full range of testing equipment, such as hardness tester, temperature measuring instrument, coating thickness tester, roughness tester, flatness instrument, etc.
  
  We carefully selecte high-quality coating materials to provide customers with first-class products.