Stainless Steel Valve Gates

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Product
Stainless Steel Valve Gates
Posting date : Aug 12, 2019
Membership
Free Member Scince Sep 30, 2018
FOB Price
-
Min. Order Quantity
100 sets
Supply Abillity
40000 sets per year
Port
Shanghai
Payment Terms
Prepaid 30% deposit, 70% to delivery.
Package
wooden case
Keyword :
Category
Contact
Aaron
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Product Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
kaitianfu
HS-CODE
-
Package & Delivery Lead Time
Package
wooden case
Delivery Lead Time
60 days
Detailed Description
INTRODUCTION TO HVOF Coating
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.
 
Technical functions and characteristics
1. Applying the thermal spray process, the corresponding materials can be used for different requirements on the surface properties of the material parts, so that the performance of the surface of the machine parts after spraying is greatly changed.
2. The process can obtain excellent abrasive resistance, corrosion resistance, heat insulation, insulation and other properties that the substrate does not have. Extend the life of the substrate to several times to tens of times.
3. While saving a lot of high-quality materials, it can also exert excellent performance unmatched by conventional and other special treatments.
4. Due to the superior performance of the workpiece, material and parts inventory can be saved, thereby greatly reducing the downtime and improving economic efficiency.
If you are interested in our technology or products, you are welcome to contact our customer service for more information.

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