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What are the surface treatment processes of silicone products? Silicone products are a very popular product, silicone products have excellent performance and are applied in many fields. Many silicone products have a delicate appearance, which also benefits from the surface treatment process of silicone products.   1, pad printing process: Silicone products printing process is a relatively early surface treatment process, it is suitable for silicone, rubber and plastic hardware and other materials of the printing process, mainly using printing ink through the plastic head mechanical printing, in the early stage mainly using the screen plate for artificial wall chart, and has been basically eliminated, currently with the upgrade of machine equipment, Mechanical printing has developed to multi-color printing and printing multiple colors at the same time through the glue head. The printing effect belongs to the plane, the surface has about 0.05MM printing steps, and the hand will feel a slight step bump effect.   2, molding: Silicone jewelry surface molding is easy, usually can also be directly made on the surface of the product, the product mold surface through the silicone products manufacturers processing concave and convex groove, directly put the silicone material into the mold pressing and curing molding products have concave and convex effect, usually many decorations are made into grooves, can be secondary filling oil processing, Add other colors of silicone ink to the grooves to make the surface of the product an additional pigment. In addition to this way, it can also be molded twice to inject other colors into the surface, this way is not difficult, mainly because the other color K pieces must be put into the mold cavity in the filling processing, the resulting product will naturally be combined with color K to achieve multi-color effect, the difficulty lies in the process of dispensing glue and production efficiency.   3, silicone drop glue, drop glue is currently the most popular process in silicone decorative supplies, mainly through the mold injection into the face of the mold cavity, through the color allocation of color glue can be made at the same time more than a dozen colors, and the effect of the production of glue products will have a certain three-dimensional effect, touch the product can be in the middle of the mold line there will be a color separation slot, the size of about 0.5mm, The product effect made by this process has been recognized by many consumers, and it is also widely used in silicone decorative bracelets and watchbands.   4, transfer: transfer process is divided into many types, in the general film industry there are basically transfer process, such as hardware, ceramics, plastics and other industries, and silicone transfer there are mainly several ways. Heat transfer printing is a more common processing of silicone bracelet, it is mainly printed pattern through high temperature PET polyester film that is printed into a heat transfer flower film, the heat transfer flower film installed on the heat transfer hot stamping machine for printing, simple operation, pattern molding, no need to color. And when some products can not use heat transfer, it is necessary to use the water transfer process, water transfer with special chemical treatment of the film, after printing the required color lines, flat to the surface of the water, the use of water pressure, the color pattern evenly transferred to the surface of the silicone product, when the coating is automatically dissolved in water, after cleaning and drying, and then a layer of transparent protective coating, By this time the product has presented a completely different visual effect. In addition to the above two transfer processes, silicone products are currently more common is the in-mold transfer effect, this way is the same as thermal transfer, the product pattern effect directly into the PET film production, through the mold design structure of the product for alignment molding, and the main technical control of this process is the open mold structure and the film plate alignment screen position. If the screen version is not strictly aligned, the resulting product will cause the overall offset.

With the development of industrial production and scientific skills, we continue to make new requests for conductive silica gel data. In the field of electronic and electrical appliances, because of the rapid development of integration skills and assembly skills, electronic components, logic circuits to light, thin, small direction, heat is also added, and then the need for high thermal insulation data, useful to remove the heat generated by electronic equipment, which is related to the service life of the product and the reliability of quality. The traditional way to deal with the heat dissipation of electronic equipment is to pad a layer of insulating medium between the heating body and the heat dissipation body as thermal conductivity data, such as mica, polytetrafluoroethylene and beryllium oxide ceramics, etc., this method has a certain effect, but there are poor thermal conductivity, low mechanical function, and advanced defects. At present, some of the heat dissipation of electronic equipment is processed by various forms of heat sinks, but most of them are necessary to be processed by thermal conductivity data, and thermal silica gel data is the most important member of thermal conductivity data. In this paper, the application of thermal paste and thermal silicone sheet to provide heat conduction treatment for electronic equipment is proposed. Thermal conductive silicone rubber material is a typical polymer composite material, its thermal conductivity function is mainly determined by the type of thermal conductive filler and the dispersion of thermal conductive filler in the silicone rubber matrix, thermal conductive filler is divided into metal filler and inorganic non-metallic filler, the thermal conductivity mechanism of various fillers is not the same, and the resolution of the difference between thermal conductivity or thermal conductivity. Thermal conductive paste is a mechanical mixture of silicone oil and thermal conductive filler. It has the characteristics of setting at any time, high thermal conductivity, non-curing and no corrosion to interface data. In electronic equipment, there are many contact surfaces and installation surfaces between various electronic components, there is a gap between them, resulting in poor warm flow, in order to deal with this problem, usually fill the thermal paste between the contact surface, use the activity of the thermal paste to sweep the air between the interface, drop or even eliminate thermal resistance.   Thermal silicone sheet is a sheet of thermal insulating silicone rubber processed by a special production process. It has the characteristics of natural viscosity, high thermal conductivity, high compressibility, high cushioning and so on. It is mainly used in the gap filling data of heating equipment and heat sink and casing, because of its soft material and elastic variable under the effect of low pressure force. It can touch the surface of the equipment even for the rough surface structure, reduce the air thermal impedance, and excellent treatment of thermal conductive silicon paste after high temperature silicone oil seepage, dust accumulation on the surface and other defects.

In life, there are many kinds of glass, and its use is also more extensive, such as tempered glass, quartz glass, optical glass and other glass types that are common in our life, and then we will understand what quality requirements optical glass has?   Glass that can change the direction of light propagation and change the relative spectral distribution of ultraviolet, visible or infrared light. The narrow sense of optical glass refers to colorless optical glass, and the broad sense of optical glass also includes colored optical glass, laser glass, quartz optical glass, anti-radiation glass, ultraviolet infrared optical glass, fiber optical glass, acousto-optic glass, magneto-optical glass and photochromic glass. Optical glass can be used to manufacture lenses, prisms, mirrors and Windows in optical instruments. Components made of optical glass are key components in optical instruments.   1, the specific optical constant and the consistency of the optical constant of the same batch of glass Each type of optical glass has a specified standard refractive index value for different wavelengths of light, which is used as the basis for optical designers to design optical systems. Therefore, the optical constant of the optical glass produced by the factory must be within a certain allowable deviation range of these values, otherwise the actual image quality will not be consistent with the expected results at the time of design and affect the quality of the optical instrument. At the same time, because the same batch of instruments are often made of the same batch of optical glass, in order to facilitate the unified calibration of the instrument, the allowable deviation of the refractive index of the same batch of glass is more stringent than their deviation from the standard value.   2. High degree of transparency The brightness of the optical system image is proportional to the transparency of the glass. The transparency of optical glass to a certain wavelength of light is expressed by the optical absorption coefficient Kλ. After light passes through a series of prisms and lenses, part of its energy is lost by reflection at the interface of the optical part and the other part is absorbed by the medium (glass) itself. The former increases with the increase of the refractive index of the glass, and this value is very large for high refractive index glass, such as a surface light reflection loss of about 6% for heavy flintlock glass. Therefore, for the optical system containing multiple thin lenses, the main way to improve the transmittance is to reduce the reflection loss of the lens surface, such as coating the surface anti-reflection film. For large-size optical parts such as the objective lens of an astronomical telescope, due to its large thickness, the transmittance of the optical system is mainly determined by the light absorption coefficient of the glass itself. By improving the purity of the glass raw material and preventing any coloring impurities from mixing in the entire process from mixing to melting, it is generally possible to make the light absorption coefficient of the glass less than 0.01(that is, the light transmittance of the glass with a thickness of 1 cm is greater than 99%).