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Analysis of the Basic Process for Tungsten Carbide Spraying
Release time:
2020-11-20 11:31
Source:
Keywords: Tungsten Carbide Coating
Guangzhou Sanxin Metal Technology Co., Ltd. is a company primarily engaged in the research and application of tungsten carbide thermal spray surface treatment technology. All our products are manufactured strictly in accordance with ISO standards. Today, we’d like to share with you the basic process of tungsten carbide thermal spraying.
The basic process of tungsten carbide spraying includes substrate surface pretreatment, spraying, surface heat treatment, coating sealing treatment, and coating surface finishing.
(1) Substrate surface pretreatment: After selecting the spraying method, choose a pretreatment process that includes degreasing, rust removal, and surface roughness adjustment.
(2) Spraying: When spraying tungsten carbide, it is essential to determine appropriate process parameters to ensure control over the spraying quality.
These include:
Injection of the heat source condition, i.e., the mixing ratio of fuel and oxygen;
(3) Material conveyance, i.e., the type, velocity, flow rate, conveying location, and angle of the gas being conveyed;
(4) Tungsten carbide spraying materials, including material composition, physical properties, powder morphology, particle size, and wire or rod diameter.
The four basic components: base temperature, performance, and surface treatment method;
Five spray application parameters, including the distance between the spray gun and the machine, the speed of the spray gun or machine components, the angle between the spray gun and the machine components, and the spraying of the gas medium.
Post-coating treatment: Immediately after coating, sealing or heat treatment should be performed.
Surface Treatment: After tungsten carbide spraying, the tungsten carbide coating should be polished to ensure dimensional accuracy. In addition, safety precautions must be taken during the spraying process.
High-speed and high-temperature spray protection for workers and tungsten carbide spraying equipment, including ventilation to control dust and spray particulates, as well as safety protection against spray noise and arc radiation.
Relevant Information
The complete set of plasma-sprayed equipment has been shipped to the customer’s site in Thailand.
Core spraying equipment: SX-80 plasma spray main unit, with a 15,000℃ flame suitable for multiple materials including zirconia and silicon carbide; powder feeding accuracy of ±1%, and coating thickness tolerance ≤ ±5 μm. Environmental protection support system: Customized soundproof booth + pulse dust collector—effectively addressing spray noise pollution while achieving highly efficient dust recovery, compliant with Thai environmental standards. Automated equipment: 6-axis industrial robot + intelligent spray cart, enabling precise spraying of complex workpieces and automated loading/unloading, boosting production efficiency by 40%.
On-site engineers provide hands-on training, focusing on the core operations of plasma spraying equipment such as the SX-80. Sanxin has customized a complete solution for its customers, including an automated spraying robotic arm, a soundproof booth, and a dust removal system—ensuring both high spraying efficiency and compliance with environmental standards.
Guangzhou Sanxin Thermal Spraying Turntable Shipment
Guangzhou Sanxin Company manufactures single-station and multi-station thermal spray turntables, which can be paired with plasma equipment, supersonic equipment, and arc equipment. We offer rapid, customized production tailored to customer requirements and product dimensions. A thermal spray turntable is a high-precision rotary worktable specifically designed for thermal spraying processes—including flame spraying, plasma spraying, and arc spraying. By providing controllable rotational speed and exceptional stability, it ensures uniform coating thickness on the workpiece surface, thereby enhancing spraying efficiency and quality.
SX-80 plasma equipment is being used at a customer site in Russia.
SX-80 plasma equipment is being used at a customer site in Russia.
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