Deposition of coatings on articles using real-time powder feed rate control
By using a programmable logic control (PLC) system in thermal spraying systems, real-time monitoring and adjustment of the flow rate of the powder feeder, the shortcomings in the prior art control of coating composition are solved, and more efficient and precise coating production is achieved.
CN119640194APending Publication Date: 2025-03-18KENNAMETAL INC
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Patent Information
- Application Number
- CN202411234406.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-15
- Filing Date
- 2024-09-04
- Publication Date
- 2025-03-18
AI Technical Summary
Technical Problem
Existing thermal spray systems lack real-time data and feedback mechanisms when controlling the feed rate of multi-component powder feeders, resulting in difficult precise control of the flow rate and composition of the coating and requiring overcalibration and manual operation.
Method used
The programmable logic control (PLC) system is used to automatically adjust the operation of the motor by monitoring the flow rate of the powder feeder and weighing sensor data in real time to achieve precise control of the coating composition.
Benefits of technology
Accurate control of multi-component powder feeders in thermal spray systems reduces the need for manual operation and overcalibration, and improves coating consistency and quality.
✦ Generated by Eureka AI based on patent content.
Abstract
A powder feeder system includes a plurality of electromechanical powder feeders configured to deliver a powder composition to a mixing hopper. Programmable logic control (PLC) may be incorporated into a plurality of feeder systems. The PLC may be programmed to determine a real-time powder flow rate of the powder feeder, receive recipe data inputs associated with producing the resulting coating composition, compare powder composition flow rate data to the recipe data, and determine a powder composition flow rate of the powder feeder. And adjusting an operational aspect of a motor and a metering wheel associated with the plurality of powder feeders in response to comparing the powder composition flow rate data to the recipe data. In various applications, the powder feeder system may be a subsystem of a thermal spraying system configured for surface hardening and coating workpieces, such as drill bits, road mills, shafts, mining tools, and / or stabilizers.
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