Inventory smart lock mainstream material and processing technology

With the development of the Smart Lock market, consumer demand shows a diversified trend, and the demand for the process, material and function of the product is different. Demand to promote product diversification, a variety of materials and processes of smart door lock products are also emerging, smart lock industry people know how much?

Smart lock common forging process
At present, the two most used forging methods in the industry are die casting and CNC fine carving process. Die casting is mainly to heat the metal through high temperature, press it into the mold, and remove the product after cooling. The essence of CNC process is the high-speed fine engraving process of small tools. There are obvious differences between the two forging methods, and the general process is as follows:
Die casting method: 1. Design the appearance, make the product structure, and then 3D proofing trial assembly; 2. Selection of product accessories and production process development; 3. Mold development of products and accessories; 4. Product trial assembly optimization; 5. Mass production.
PS: Die-casting products, from research and development to mass production takes about two to three months, or even longer.
CNC: 1. Design appearance and make product structure; 2. Production process development; 3. Optimization of physical proofing on machine; 4. Mass production after product optimization.

Smart lock common forging process
At present, the two most used forging methods in the industry are die casting and CNC fine carving process. Die casting is mainly to heat the metal through high temperature, press it into the mold, and remove the product after cooling. The essence of CNC process is the high-speed fine engraving process of small tools. There are obvious differences between the two forging methods, and the general process is as follows:
Die casting method: 1. Design the appearance, make the product structure, and then 3D proofing trial assembly; 2. Selection of product accessories and production process development; 3. Mold development of products and accessories; 4. Product trial assembly optimization; 5. Mass production.
PS: Die-casting products, from research and development to mass production takes about two to three months, or even longer.
CNC: 1. Design appearance and make product structure; 2. Production process development; 3. Optimization of physical proofing on machine; 4. Mass production after product optimization. Can not do fine polishing treatment, mostly for ordinary spray paint, sealing glaze process, is characterized by rough surface, low hardness.

Can also be electroplated surface is matte texture, weight is very light, because the substrate is not smooth, easy to decolorize after electroplating.
Aluminum alloy for aviation
Generally refers to 6 series, 7 series aluminum alloy, precision casting, easy machining, beautiful metal cutting. Light weight, high density, high strength, poor toughness. Used for simple style Fingerprint Lock, ultra-thin fingerprint lock.
The surface treatment is mostly anodized (matte texture) and brushed (poor anti-friction performance).
Plated with zinc
Zinc alloy is currently the most widely used substrate, high density, toughness, plasticity, after zinc alloy die-casting machine high temperature melting, die-casting molding, hole molding.
After drawing, electroplating and coloring, it has a copper-like feeling, but the resistance to transverse friction is low.
Chromium plating, the most widely used surface treatment process. The surface coating does not exceed 1 micron, the surface hardness is very high, more than 8 mohs hardness, corrosion resistance, high weather resistance.
Vacuum electrogold process, first electroplating chromium, and then in an oxygen-free environment electric gold (the gold here is not real gold, but a chemical liquid). More than a set of processes, the cost is higher. The surface hardness is higher than that of chromium plating, and the oxidation resistance is stronger. Electrogold process representatives such as VOC, Iqi, etc.
Metal paint, smooth and beautiful surface, but afraid of bump.
Stainless steel 304
Stainless steel has high hardness and is not easy to process. Most of them are 2MM strip steel, stamped and laser cut. Not easy to do molding can not be stamped edges and corners.
This kind of red bronze is first drawn and then electroplated, but because of the inert substrate, the coloring is not uniform.
The primary color surface material is drawn, and the circular arc is polished by water grinding, and the water grinding position is smooth and bright. Although there is no risk of fading, the microscopic surface becomes burr after drawing, and the background color is a pure color, which is easy to stain and precipitate, affecting the visual effect.
Electrogold plating after water grinding polishing, but because the characteristics of the substrate color is unstable, the surface hardness is lower than that of chromium plating, and it is easy to produce scratches.
There are many low-cost products on the market claiming 304 stainless steel, in fact, 201 stainless steel, long time easy to rust, discoloration. What's more, the outer ring is stainless steel, or zinc alloy, with only a few reinforcing bars in the middle, and an acrylic plate outside is perfunctory.
❺ bronze
Because of its high cost, it is mainly used for villa locks. Casting molding, machining.
Surface treatment techniques include oxidation coloring, wire drawing, primary color sandblasting. The plating process is unstable in coloring. Soft surface material, high repairability.
Copper metal, because of its high corrosion resistance and easy discoloration, will become more and more beautiful in the case of natural oxidation.
The smart lock surface material part mainly includes the following:
Acrylic panel of just area
The acrylic substrate is soft, the surface hardness is low, and it is not scratch resistant. Do not do arc, corner hole cutting molding.
Toughened glass
High hardness, scratch resistance, high strength. But it costs five times as much as acrylic. It is difficult to process and cannot be bent.
Dashi5 a drilling screen
The surface of the acrylic panel and IMD is coated with a nano layer, which reduces friction and improves wear resistance.

Surface treatment technology
IML in-mold injection molding
Mold insert injection molding, the process is very significant characteristics are: the surface is a hardened transparent film, the middle is the printing pattern layer, the back is the plastic layer, because the ink is sandwiczed in the middle, the product can prevent the surface from being scratched and friction resistance, and can keep the color bright and not fade for a long time.
❷ anodizing
Aluminum and its alloy in the corresponding electrolyte and specific process conditions, due to the action of external current, the process of forming an oxide film on the aluminum product (anode). Anodizing, if not specified, usually refers to sulfuric acid anodizing.
❸ Sand blasting
The process of cleaning and coarsening the surface of the matrix by the impact of high-speed sand flow. Due to the impact and cutting effect of abrasive on the surface of the workpiece, the surface of the workpiece obtains a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece are improved, so that the fatigue resistance of the workpiece is improved, the adhesion between it and the coating is increased, the durability of the coating is extended, and the flow of the coating is also conducive to the decoration.
After the sandblasting process after electroplating, the surface of the smart lock is matte, with strong oil resistance and uniform tone.
Sealing glaze
The sealing glaze is to shock the polymer glaze into the pores of the paint surface to form a firm network protective layer, which can effectively reduce scratches and achieve the purpose of protecting the paint surface.
Plate polishing
Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece in order to obtain a bright, flat surface processing method. Is the use of polishing tools and abrasive particles or other polishing media to modify the surface of the workpiece.
Area drawing
Surface drawing treatment is a surface treatment method that forms lines on the surface of the workpiece by grinding the product to play a decorative effect. Because the surface drawing treatment can reflect the texture of metal materials, it has been loved by more and more users and more and more widely used.
Microscopic spraying
Spraying A coating method in which droplets are dispersed into uniform and fine droplets and applied to the surface of the coated material by means of pressure or centrifugal force, either by a spray gun or a dish atomizer. It can be divided into air spraying, airless spraying, electrostatic spraying and various derivative methods of the above basic spraying forms.
School-baked lacquer
Several coats of paint are sprayed on a base (usually high-density sheet) that has been polished to a certain roughness. And after high temperature baking set. At present, the process has higher requirements for paint and good color rendering.
❾ zinc alloy electroplating enamel color
Zinc alloy wrapped branches carved electroplating, after enamel color process. The picture below (a model launched by Meilun Meilkai for export in the Middle East) shows no texture, the real red background is very dense, and the outer layer of bright oil has a thick glass texture. This process is also developed by an enamel craft master in the United Nations, and the technical details are kept secret for the time being.

Conclusion
Different technology applications have created a variety of end products. The use of the substrate directly determines the structural strength of the product, and the visual feeling and touch brought by the different surface material treatment processes also affect the choice of consumers. It is hoped that manufacturers will continue to explore new technologies to provide consumers with better products.