A complete product is not only machined, but also requires various surface treatments to achieve corrosion resistance, wear resistance, beauty, and improve service life. Hongao Precision has many years of experience in CNC processing and provides a series of services from processing to surface treatment to assembly. Therefore, in addition to CNC technology, it also has rich experience in surface treatment. The existing surface treatment processes include: painting, Baking paint, powder spraying, sandblasting, shot blasting, anodizing, thick film oxidation, micro-arc oxidation, electroplating, electrophoresis, laser engraving, silk screen printing, wire drawing, mirror polishing, dyeing, blackening, CD pattern, etching, high gloss, etch pattern , Epoxy, etc., for your product icing on the cake.
Oxidation
It is an electrolytic oxidation process, which converts the surface of the material into a protective film, making it difficult to oxidize and corrode, prolonging the life and achieving the appearance of various colors. Commonly used oxidation treatments are divided into: ordinary anodic oxidation, wire drawing oxidation, hard oxidation, thick film oxidation, micro-arc oxidation, etc. The materials that can be oxidized are: aluminum alloy, magnesium alloy, titanium alloy, etc.
Electroplate：
The basic process of electroplating is to immerse the part in the solution of metal salt as the cathode, and the metal plate as the anode, and pass the current to deposit the desired coating on the part. The appropriate electroplating effect will make your product more high-end fashion and with it. To a better market, common electroplating includes: copper plating, nickel plating, silver plating, gold plating, chrome plating, galvanizing, tin plating, vacuum plating, etc.
Electrophoresis:
With the continuous improvement of industrial demand, electrophoresis technology can customize various colors, maintain the metallic luster and enhance the corrosion resistance of the surface, which has little impact on the accuracy of the product. The thickness of one side is about 10-25um, and thicker ones Can be customized.
Passivation:
Passivation, also known as chromate treatment, is a pickling process that removes surface grease, rust, and oxides by immersion or ultrasonic cleaning. Through the chemical reaction of the passivation solution, it can prevent corrosion and prolong rust. The color of the passivation film will change with different materials. Passivation will not increase the thickness of the product, and there is no need to worry about it affecting the accuracy of the product.
Blackened:
Blackening is also called bluing. The principle is to immerse the product in a strong oxidizing chemical solution to form an oxide film on the metal surface to isolate the air and achieve the purpose of rust prevention. This process is applicable to steel materials.
QPQ
QPQ is the abbreviation of Quench-Polish-Quench. It refers to putting ferrous metal parts into two kinds of salt baths with different properties, and infiltrating various elements into the metal surface to form a composite infiltration layer, so as to achieve the purpose of modifying the surface of the parts. It has good wear resistance, fatigue resistance, corrosion resistance and small deformation. This process is applicable to all steel materials.
(Note: Stainless steel products cannot be blackened, and the surface can only be blackened by QPQ)
Laser carving:
Laser engraving, also called laser engraving or laser marking, is a surface treatment process using optical principles to form LOGO or patterns on products. The laser engraving effect is permanent and the surface quality is high, suitable for all kinds of metal and plastic products.
Silk screen:
Silk screen printing means that the ink transfers the pattern to the product through the screen. The color of the ink can be customized according to the needs of customers. Zhuanxin Precision has done 6 colors on the same product, including black, red, blue, yellow, White green. If you want the effect of silk screen printing to be more durable, you can also add a layer of UV after silk screen printing to prolong its life. Silk screen printing is suitable for various metal and plastic materials, and can also be combined with surface treatment such as oxidation, painting, powder spraying, electroplating, and electrophoresis.
Polishing:
Polishing is to make the product beautiful, translucent and protect the surface. Polishing and transparency is a good choice for you. The polishing of hardware products is divided into manual polishing, mechanical polishing, and electrolytic polishing. Electrolytic polishing can be used to replace heavy mechanical polishing, especially for parts with complex shapes and parts that are difficult to process by manual polishing and mechanical methods. Electrolytic polishing is often used for steel, aluminum, copper and other parts.
Wire Drawing:
Wire drawing is a surface treatment method that forms lines on the surface of the workpiece through a flat-pressed abrasive belt and a non-woven roller brush to achieve a decorative effect. Brushed surface treatment can reflect the texture of metal materials, and it is becoming more and more popular in modern life. It is widely used in mobile phones, computers, monitors, furniture, electrical appliances and other shells.
Dusting, painting：
Paint spraying and powder spraying are two common surface treatments in hardware parts spraying, and they are the most commonly used surface treatments for precision parts and small batch customization. They can protect the surface from corrosion, rust, and can also achieve an aesthetic effect. Both powder spraying and painting can be customized with different textures (fine lines, rough lines, leather lines, etc.), different colors, and different gloss levels (matte, flat, high-gloss).
Sandblasting:
Sandblasting is one of the commonly used surface treatments for hardware products. It can improve the cleanliness and roughness, and increase the adhesion and durability between the product and the coating. Therefore, many surface treatments choose sandblasting as their pre-treatment. Such as: sandblasting + oxidation, sandblasting + electroplating, sandblasting + electrophoresis, sandblasting + dusting, sandblasting + paint, sandblasting + passivation, etc.
Teflon spraying：
Also known as Teflon spraying, it is a very individual surface treatment. It has excellent anti-adhesiveness, non-stickiness, high temperature resistance, low friction, high hardness, non-humidity, and high chemical resistance. It is widely used in the food industry. , tableware, kitchen utensils, paper industry, medical equipment, electronic products and automotive products, chemical equipment, etc., while protecting the material from chemical corrosion and prolonging the service life of the product.
In addition to the above surface treatment, we can also do shot blasting, dyeing, CD graining, etching, highlighting, etching, glue dropping, etc. For more details, please contact us
A few things about surface treatment
1. What is the difference between dusting and painting?
>>The powder coating of spraying powder does not contain any solvent, which is environmentally friendly and pollution-free, while the spray paint contains no solvent.
>>The utilization rate of the powder coating is high, the utilization rate of the powder coating is about 95%, and the spray coating can only be stored for a short time.
>> There are many kinds of paints, and there are relatively few types of powder spraying.
>>The coating of powder spraying is thicker than that of spray paint, and the surface effect of spray paint is smoother than that of spray powder.
2. What is the difference between laser engraving and silk screen printing?
>>Radium engraving processing forms LOGO and patterns on the product through laser beams, and can also remove the surface treatment coating of the product, which is sunken; silk screen products transfer the LOGO and patterns to the product by ink adhesion, is raised.
>>The color of the LOGO and pattern of the laser engraving process is the natural color of the material, while the color of the LOGO and pattern of the silk printing process is the color of the ink, which can be customized;
>>In terms of wear resistance, the effect of laser engraving is longer than that of silk screen printing.
>>The cost is different. The laser engraving process is more economical because it does not require film, but silk screen printing does.
3. Can stainless steel be blackened?
We have received inquiries from some customers about whether stainless steel products can be blackened. Our surface treatment engineer replied: steel can be blackened, but stainless steel can only use QPQ process to achieve the effect of black surface.
