Understand and apply the basics of metal surface treatment

HY metal surface treatment production is crucial in metal parts. Excellent metal surface treatment can make the original perfect parts even better.

Since there are a variety of different metals in the world, using the most suitable metal surface treatment for different metals will increase the production cycle time, but it can extend the service life of the parts and also increase the aesthetics.

The importance of surface treatment

Engineers not only increase the aesthetics of the product surface, but also use it as a means to protect the metal.

It helps enhance part aesthetics

Customers have the same requirements for the aesthetics of products, and metal surface treatment can give customers a better look and feel. With metal surface treatment, your products can better attract customers.

Improve corrosion resistance and wear resistance of metal surfaces

Eliminate or repair changes and damage to material surfaces. Corrosion is one of the biggest destroyers of metal surfaces and parts. Through metal surface treatment, the metal surface is well protected, thereby extending the life of the parts.

Save energy and reduce costs

Brushing and sanding a smooth surface makes it easier for paint to adhere, taking the pressure off the fabricator.

Surface treatment helps improve the conductivity of metal parts

Parts increase surface resistance to chemicals, protecting them from chemical attack

It increases strength and wear resistance

Proper surface finish helps minimize the effects of friction

metal surface treatment

Surface modification technology: Change the morphology, phase composition, microstructure, defect state, and stress state of the surface of metal materials through physical, chemical and other methods. The chemical composition of the material surface remains unchanged.

anodizing

Electrochemical oxidation of metals or alloys. Aluminum and its alloys form an oxide film on aluminum products (anode) under the action of applied current under corresponding electrolytes and specific process conditions. Anodizing usually refers to sulfuric acid anodizing unless otherwise specified. In order to overcome the defects of aluminum alloy surface hardness, wear resistance, etc., expand the scope of application, and extend the service life, surface treatment technology has become an indispensable part of the use of aluminum alloys, and anodizing technology is the most widely used and successful. .

powder coating

It is a solid powder synthetic resin coating composed of solid resin, pigments, fillers and additives. Unlike ordinary solvent-based paints and water-based paints, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation, and low energy consumption. This metal treatment is widely used in the military industry, automotive industry and tool manufacturing.

pickling

The method of using acid solution to remove scale and rust on the surface of steel is called pickling. Generally, the parts are immersed in an aqueous solution such as sulfuric acid to remove oxide and other films on the metal surface. It is the pre-treatment or intermediate treatment for electroplating, enamel, rolling and other processes. Therefore, HY engineers use pickling in almost all metal manufacturing processes. It helps clean the surface and make it smooth by removing scale.

Galvanized

Surface treatment technology that coats the surface of metal, alloy or other materials with a layer of zinc for aesthetics and rust prevention. Advantages: low cost, good corrosion resistance, beautiful appearance and storage resistance. It has been widely used in industrial fields such as mechanical and electrical, light industry and national defense.

Nickel plated

A method of plating a layer of nickel on metal or certain non-metals by electrolysis or chemical methods. On the surface of steel, zinc die-casting parts, aluminum alloys and copper alloys, it protects the base material from corrosion or serves as a bright decoration.

chrome

A kind of bluish silver-white metal, metal chromium is easily passivated in the air, forming an extremely thin passivation film on the surface, thus showing the properties of a noble metal. It can maintain its luster for a long time in the atmosphere and does not react in many organic acids such as alkali, nitric acid, sulfuric acid, etc.

polishing

Polishing is the production of a shiny metal surface through the use of physical friction or chemicals. It helps produce metallic surfaces with excellent specular reflective surfaces. Another added advantage of finishing is that it can be used on both new and used parts.

sandblasting

The process of cleaning and roughening the surface of the substrate by using the impact of high-speed sand flow, that is, using compressed air as power to form a high-speed jet beam to spray the spray material (copper ore, quartz sand, emery, iron sand, Hainan sand) at high speed to the area that needs to be processed. The surface of the workpiece changes the appearance or shape of the outer surface of the workpiece surface.

screen printing

Screen printing is to stretch silk fabric, synthetic fiber fabric or metal mesh on a screen frame, and use manual carving of paint film or photochemical plate making to make a screen printing plate. Modern screen printing technology uses photosensitive materials to make screen printing plates through photographic plate making (so that the screen holes in the graphic and text parts of the screen printing plate are through holes, while the screen holes in the non-graphic and text parts are blocked. live). During printing, the ink is transferred to the substrate through the mesh of the graphic part through the squeezing of the scraper, forming the same graphic and text as the original.

How to Choose Metal Surface Treatment

speed

Each metal finishing operation takes different times, some are quick and some are slow. Therefore, when undertaking a new project, one needs to consider the time required to deliver the project. If you must complete your project quickly, consider the fastest finish possible.

Material

Different metal materials use different surface treatments. Therefore, HY considers what material a customer's part is made of and selects the appropriate surface treatment for that material. For example, some materials are soft and using strong abrasive methods on such materials may cause damage.

Budget

Different surface treatments have different prices. Choose the best solution according to the customer's budget.

Choose HY, we have a variety of surface treatment options, contact us and let us start the project.