Surface treatment of plastic parts

Date of issue: 2018-01-04 Author: Guangzhou Tuoshen Surface Treatment Co., Ltd Click:

1， IMD

2. The metal baking paint is required for oil spraying treatment

3. Surface gilding (anodized transfer), but there are requirements for surface shape (also called heat transfer printing)

(1) For the hot stamping plate, that is, the pressure head part, the red copper material is the best. Because the red copper has good heat dissipation and heat transfer, it is a neutral material in the metal, which is neither too soft nor too hard. It is not only easy to process, but also has certain flexibility and good durability; However, in actual use, many manufacturers choose aluminum alloy printing plates in order to reduce material costs, which can save some costs in hot plate production. However, because the aluminum is too soft and has poor service life, if the batch is large, it will take a while to re plate making, and the plate making cost is not cheap, so the issue of material selection should be considered comprehensively.

(2) It is easy to understand the hot stamping process conditions, that is, hot stamping pressure, hot stamping temperature and hot stamping time.

(3) The most important thing is the selection of stamping raw materials, that is, gilding paper. When selecting, you should pay attention to matching with different stamping substrates. Not one kind of gilding paper can take all materials, which is mainly related to the adhesion firmness of heat transfer printing.

4. The general principle of water transfer printing is as follows: first print the pattern on the transfer paper, and then paste a layer of protective film on the printing surface. The transfer paper is completed. During printing, the protective film must be torn off, soaked with water, and pasted on the printed surface. Due to the effect of water, the ink is attached to the product surface. Then tear off the silver transfer paper. After the water is dry, the silver transfer is completed

5. Vacuum coating

6. Surface wire drawing

7. Electroplated wire drawing can be made into straight lines, random lines, threads, ripples and spiral lines according to decoration needs. Straight wire drawing refers to machining straight lines on the surface of aluminum plate by mechanical friction. It has dual functions of brushing off scratches on the surface of aluminum plate and decorating the surface of aluminum plate. There are two types of straight wire drawing: continuous and intermittent. Continuous silk lines can be obtained by continuous horizontal linear friction on the surface of the aluminum plate with a cleaning cloth or stainless steel brush (such as manual grinding under the condition of a positioning device or grinding on the aluminum plate with a planer clamped with a wire brush). Varying the steel wire diameter of the stainless steel brush can obtain lines of different thicknesses. Intermittent silk patterns are generally processed on a polishing machine or a buffing machine. Manufacturing principle: two groups of differential wheels rotating in the same direction are used. The upper group is a fast rotating grinding roller, and the lower group is a slow rotating rubber roller. The aluminum or aluminum alloy plate passes through the two groups of rollers and is brushed with fine intermittent straight lines. Random wire drawing is a kind of irregular and obvious matt silk pattern obtained by moving the aluminum plate from front to back, left to right, and friction under the high-speed copper wire brush. This kind of processing has high requirements for the surface of aluminum or aluminum alloy plates. Ripples are generally made on a polishing machine or a buffing machine. Use the axial movement of the upper group of grinding rollers to grind and brush on the surface of aluminum or aluminum alloy plates to obtain wavy lines. Spinning pattern, also known as optical rotation, is a kind of silk pattern obtained by rotating and grinding the surface of aluminum or aluminum alloy plate with kerosene and polishing paste, which is installed on the drilling machine with cylindrical felt or grinded nylon wheel. It is mostly used for decorative processing of round signs and small decorative dials. The thread is a small motor with a round felt on the shaft, which is fixed on the table at an angle of about 60 degrees with the edge of the table. In addition, a carriage with fixed aluminum plates for pressing tea is made, and a polyester film with straight edges is pasted on the carriage to limit the thread race. Using the rotation of the felt and the linear movement of the carriage, a thread pattern with the same width is generated on the surface of the aluminum plate. Guangzhou Tuoshen is the most professional in surface treatment of plastic parts.