Nano-infiltration technology of black gold steel is to form a composite infiltration layer by infiltration of various elements into the metal surface, so as to achieve the purpose of modifying the surface of parts. There is no quenching, but the surface quenching effect is achieved. The latest improved process is called black gold steel nano-infiltration technology. Compared with the traditional surface treatment industry, it has the advantages of no deformation, higher hardness, deeper blind hole depth, neutral salt spray test for more than 800 hours, high efficiency, and the corresponding smoothness can be obtained without polishing the surface of the substrate. It can be applied to non-standard and large and small parts.
Introduction:
Nano-carburizing treatment of black gold steel: This technology completes heat treatment and anti-corrosion treatment at one time, with high treatment temperature and short treatment time, which can improve the surface hardness and neutral salt spray test of parts at the same time, with strong wear resistance and corrosion resistance, small deformation and no pollution. It has the advantages of optimizing processing procedure, shortening production cycle and reducing production cost, and has been recognized and praised by many manufacturers.
Nanoinfiltration treatment technology of black gold steel is a combination of heat treatment technology and anti-corrosion technology in technology, and a combination of high wear resistance and high corrosion resistance in performance. On the wetting layer, there is a composite wetting layer composed of various compounds. Therefore, foreign countries think that this is a great progress in the field of metal surface strengthening technology and call it a new metallurgical method.
Application:
The following are the application examples of black gold steel nano-infiltration technology in some typical parts:
1? High speed steel cutter? Various high-speed steel drills, milling cutters, broaches and gear cutters can prolong their service life by 8- 12 times, and are especially suitable for difficult-to-machine materials.
2. The tool holder and the tool body are clamped by various machines, which improves their wear resistance, scratch resistance, no deformation, well meets the requirements of positioning and accuracy, and has strong rust prevention ability.
The mold is suitable for various die casting molds, injection molds, extrusion molds, rubber molds, glass molds, etc. , greatly improving the service life of the die and the wear resistance of the machined parts.
Dozens of automobile parts, such as valves, crankshafts, camshafts, gears, gas spring piston rods, shock absorber rods, differential brackets and spherical pins, have been used for many years and achieved remarkable results.
5 sports equipment 6 textile machinery 7 switch parts 8 printing machinery 9 sealing machinery all kinds of valves and shaft parts
10 power tool parts1/kloc-0 construction machinery parts 12 camera parts shutter, lock and other stamping parts.
Features:
At present, the nano-infiltration technology of black gold steel has also been widely used in China, especially in the fields of automobiles, motorcycles, textile machines, machine tools, electrical switches, tools, molds and so on. Its specific features are as follows:
1 has good wear resistance and fatigue resistance.
This process can greatly improve the surface hardness and wear resistance of various ferrous metal parts and reduce the friction coefficient. The wear resistance of black gold steel after nano carburizing treatment is more than 20 times higher than that of conventional quenching and high frequency quenching, more than 12 times higher than that of 20# steel carburizing quenching, and more than 4 times higher than that of hard chromium plating and ion nitriding.
The fatigue test shows that this process can improve the fatigue strength of medium carbon steel by more than 60%, which is better than ion nitriding and gas nitriding. This process is especially suitable for parts with complex shapes, which solves the key technology and deformation problem.
2 Good corrosion resistance
According to the same test conditions and ASTMBll7 standards, continuous spray tests were carried out on samples with different materials and different processes. Salt spray test temperature is 35 2℃, relative humidity is >: 95%, and 5%NaCL aqueous solution is sprayed. The test results show that the corrosion resistance of the parts treated by nano-infiltration technology of black gold steel is 5 times that of 1 Cr 18 ni 9 ti stainless steel, 8 times that of chrome plating, 20 times that of blackening, and the neutral salt spray test can reach more than 800 hours, which can fully meet the needs of extreme customers.
3. The deformation of the product after treatment is small.
The workpiece hardly deforms after being treated by black gold steel nano-infiltration technology, which can effectively solve the hardening deformation problem that is difficult to be solved by conventional heat treatment methods. For example, after the carbon steel plate with the size of 5 10×460× 1.5mm is treated by black gold steel nano-carburizing technology, the surface HV is ≥1000, and the roughness is less than 0.4 mm At present, the black gold steel nano-carburizing technology has been successfully applied to various shaft parts and slender rods, effectively solving the contradiction between heat treatment hardening and product deformation.
4 can replace multiple heat treatment processes and anti-corrosion treatment processes, and the time period is short.
After the workpiece is treated by nano-infiltration technology of black gold steel, its corrosion resistance is improved on the basis of improving its hardness and wear resistance, forming a black and beautiful appearance, which can replace the conventional quenching-tempering-blackening (chromium plating) process, shorten the production cycle and reduce the production cost. A large number of production data show that nano-carburizing treatment of black gold steel saves energy by 70% compared with carburizing and quenching, and saves cost by 50% compared with hard chromium plating, with high cost performance.
5. No pollution, no environmental pollution.
As we all know, most metal surface treatment processes are accompanied by a large number of toxic and harmful chemicals. Wastewater containing heavy metals such as copper, zinc, nickel and chromium, as well as concentrated sulfuric acid, concentrated hydrochloric acid and cyanide used for metal cleaning, not only greatly increase the production cost, but also violate the original intention of environmental protection. Nano-infiltration technology of black gold steel has eliminated the pollution source from the source. No matter in the middle or late stage of operation and production, the finished product absolutely does not contain any heavy metal substances, which is truly green and environmentally friendly.
Nano-infiltration technology of black gold steel has a wide range of applicable materials.
This process is suitable for all ferrous materials, from pure iron, low carbon steel, structural steel and tool steel to various high alloy steel, cast iron and iron-based powder metallurgy parts.
This technology will not only quickly occupy the market share of traditional surface treatment, but also affect the material market because of its excellent performance. After the nano-infiltration treatment of black gold steel, the corresponding performance indexes of ordinary carbon steel can exceed that of stainless steel, which is undoubtedly a nuclear explosion in manufacturing industry in today's fierce market competition.
At present, a new round of global scientific and technological revolution and industrial transformation is on the rise. The development of China's manufacturing industry is faced with the double squeeze and challenge of developed countries gaining advantages and emerging economies catching up with competition. The process of networking, intelligence, flexibility and service of metal manufacturing surface treatment industry has a profound impact on the development mode, transformation and upgrading of China manufacturing industry.
With the rapid development of economy and science and technology in China, the focus of the world manufacturing industry has gradually shifted to China. At the same time, the surface treatment industry is becoming more and more important with its unique performance. Because of its strong decorative and functional, versatility and wide application, it has become an indispensable developing industry in the world manufacturing industry. The global annual output value of this industry is trillions of yuan. Focus on the machinery manufacturing industry, light industry, electronics industry, aviation, aerospace and instrumentation industry. With the acceleration of supply-side reform and the further deepening of market-oriented reform, China's manufacturing industry will accelerate the development process of "high-end, intelligent and green". Our technology is completely in line with industry orientation, and its excellent technical performance will surely become a new generation unicorn in the field of terminal technology.
Our company has been committed to the research of nano-cementing technology. After years of tempering and repeated experiments, we have finally developed a new generation of black diamond nanotechnology with excellent performance indicators, which will surely become a new generation of overlord in the surface treatment industry. Made in China has achieved a real upgrade in the field of terminal technology, and the competitiveness of China products in this field has made a qualitative leap on the world stage.