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Polishing is an important process in the production of injection molds. After all, with the increasing application of plastic products, people also have higher requirements for the appearance and quality of plastic products,

Therefore, the surface polishing quality of our injection mold cavity also needs to be improved accordingly, so let's take a look at several common polishing methods in injection molds!

1、 Mechanical polishing

Mechanical polishing is a method of polishing a smooth surface by removing the protrusions on the material surface due to plastic deformation during cutting. Generally, oilstone strips, wool wheels, sandpaper, etc. are used. Mainly manual operation,

This is a relatively busy process compared to others.

2、 Chemical polishing

Chemical polishing is the process of allowing materials to preferentially dissolve the micro protruding parts of the surface in a chemical medium, resulting in a smooth surface. The main advantage of this method is that it does not require complex equipment and can polish jobs with complex shapes,

It can polish many tasks simultaneously, with high efficiency.

3、 Electrolytic polishing

The basic principle of electrolytic polishing is the same as chemical polishing, which relies on selective dissolution of small protrusions on the surface of the material to achieve a smooth surface. Compared with chemical polishing, it can eliminate the influence of cathodic reactions and achieve better results.

4、 Ultrasonic polishing

Put the workpiece into an abrasive suspension and place it together in an ultrasonic field. By relying on the oscillation effect of ultrasonic waves, the abrasive is ground and polished on the surface of the workpiece, resulting in low macroscopic force during ultrasonic machining. Will not cause deformation of the workpiece,

But making and following the tooling is more difficult. Ultrasonic processing can be combined with chemical or electrochemical methods

5、 Fluid polishing

Fluid polishing is achieved by flushing the surface of the workpiece with flowing liquid and its carried abrasive particles. Common methods include abrasive jet machining, liquid jet machining, fluid dynamic grinding, etc.

6、 Magnetic grinding polishing

Magnetic abrasive polishing is the process of using magnetic abrasives to form abrasive brushes under the action of a magnetic field to grind and process workpieces. This method has high processing efficiency, good quality, easy control of processing conditions, and good working conditions.

That's all for today's sharing. I'm really reluctant to say goodbye to everyone, and I hope you can ask me if you don't understand anything, otherwise the editor will be very bored!