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The hardware surface processing subdivision can be divided into: hardware painting processing, electroplating, surface polishing processing, metal corrosion processing and so on.

Surface processing of hardware parts:

1. Spray paint processing: The hardware factory adopts spray paint processing when producing large-scale hardware products, and the hardware parts are prevented from rusting through spray paint processing, such as: daily necessities, electrical enclosures, handicrafts, etc.

2. Electroplating: Electroplating is also the most common processing technology in hardware processing. Electroplating on the surface of hardware through modern technology ensures that the product will not be mildewed and embroidered under long-term use. Common electroplating processing includes: screws, Stamping parts, battery chips, car parts, small accessories, etc.,

3. Surface polishing: Surface polishing is generally used in daily necessities for a long time. By performing surface burr treatment on hardware products, such as: we produce a comb, the comb is made of hardware by stamping, then the stamping The corners of the comb are very sharp, and we need to polish the sharp parts of the corners into a smooth face, so that it will not cause harm to the human body during use.

Turning the outer circular surface is the basic method of machining the outer circular surface in hardware processing, and the equipment used is a lathe. In general machinery factories, lathes account for about 40% of the total number of machine tools. Turning is the main method for roughing and semi-finishing the outer surface of various materials, and it is also the final finishing method for various materials that are not suitable for grinding.

When a single piece is produced in small batches, the turning of the outer surface is generally carried out on an ordinary lathe. In mass production, multi-tool semi-automatic lathes or automatic lathes are widely used. Large disc parts should be machined on a vertical lathe. Large long axis Parts are machined on heavy-duty horizontal lathes.

The characteristics of turning the outer surface are: 1. The tool is simple, the manufacture, sharpening and installation are convenient; 2. The cutting process is stable and the cutting force fluctuation is small, which is conducive to the use of high cutting speed and improves productivity; 3. The machine tool is universal It has good performance and can process the outer circle, end face, inner hole, thread and chamfer in one clamping. The mutual position accuracy between the surfaces is easy to ensure; 4. It is suitable for the finishing of non-ferrous metal parts.

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