Detailed explanation of the process flow of nickel fluoride dragon screws and screws. Nickel fluoride dragon screws and screws are commonly used in industries such as surgical instruments and precision molds.
1. Dispersion coating: The processing method of dispersion coating is a wet process that evenly distributes the coating material in a solvent to form a dispersion liquid (solid substances mixed in the liquid). This mixture is atomized by high-pressure air and sprayed onto the surface of the workpiece.
2. The processing steps for dispersed coating are divided into the following steps: preparation of the workpiece, (wet) dispersion coating spraying, drying, and sintering.
3. In order to obtain sufficient surface adhesion on the surface of the workpiece, it is necessary to first remove all the grease on the surface to be coated. We use organic solvents to dissolve oil and heat it to about 400 degrees Celsius to completely evaporate it. The next step is to use sandblasting to clean the workpiece mechanically and roughen its surface. The bonding ability between the coating and the surface of the workpiece can be improved by applying adhesive agents (primers).
4. Heat the wet coating in an oven and keep the temperature below 100 degrees until most of the solvent has evaporated.
5. The sintering step involves heating the workpiece to a higher temperature until an irreversible reaction occurs: the coating material melts and forms a network structure with the bonding agent.
6. The method of powder coating processing is a dry process, in which the coating material used is in the form of fine solid particles. By using this coating method, the use of solvents and the subsequent divergence phenomenon that occurs during coating adhesion are avoided.
Shanghai Yaluo Fasteners specializes in producing nickel fluorine dragon screws and screws, supporting full range coating. Welcome to inquire by phone.
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