The precision of the hardware mold will be higher and higher. Ten years ago, the precision of precision molds was generally 5 micrometers, and it has now reached 2 to 3 micrometers. Soon, a mold with an accuracy of 1 micron will be on the market. This requires superfinishing. Metal processing mold industry will become larger and larger. This is due to the large number of mold-forming parts and the high production efficiency required to develop a multi-cavity model. The mold industry multi-functional composite mold will be further developed. In addition to punching and forming parts, the new multi-functional composite molds also carry out assembly tasks such as lamination, tapping, riveting, and locking, and the performance requirements for steel materials are also increasing.
How can China's metal processing mold companies advance in the storm? Luo Baihui believes that the process of perfecting the socialist market economic system is a process of rapid circulation. If one does not understand circulation, one cannot understand the socialist market economy. Modern circulation is an important factor in improving the speed, quality, and effectiveness of economic operations. Therefore, in order to ensure the continued prosperity of the hardware manufacturing industry and accelerate the development of the mold and hardware industry, we must first do a good job in several areas.
We must do a good job in the modern service industry of the metal processing mold industry, develop large business, form a large circulation, an open circulation pattern, establish an efficient distribution platform, and completely change the current status of hardware distribution platforms that are small, scattered, and weak; we must do a good job in the industry. Each link in the development process, through the accumulation of the hardware industry in the province, forms a large cluster of hardware industry, stretches the industrial chain, forms a production pattern that interlocks and complements each other, and enhances the overall competitiveness of the hardware industry; The technological innovation and brand building of production enterprises must accelerate the integration of domestic and foreign trade and the integration of trade and industry, and promote the adjustment of economic structure and the transformation of economic growth mode. It is necessary to develop the market and expand consumption as the main line, making full use of e-commerce and Network service platform, promote the hardware market system, modern hardware logistics system, hardware market monitoring system and hardware commercial credit system construction, realize the modernization of the hardware industry circulation as soon as possible; must do a good job in the industry exchanges and cooperation, achieve resource sharing, the hardware of the province Enterprises should be clearly aware of the development process In order to meet various intricate and complicated issues, we must pool everyone’s wisdom and strength, use collective resources, seek advantages and avoid disadvantages, strengthen cooperation, promote multi-directional communication inside and outside the industry, promote prosperity, and form the overall effect of the industry. International trade barriers may arise and take the initiative to respond to the severe challenges of the international market.
Leaders of metal processing and die-casting companies must identify the priorities of the company’s work after identifying the direction of the company’s work, clarify the key tasks of the company, and do not waste energy on other trivial matters. If one thing cannot promote The enthusiasm of the employees does not have a short-term or long-term promotion effect on the development of the company's profits. This case is unnecessary and can be ignored.
As we all know, in the U.S. market, medium-sized twist drills cost about US$10 each, while the low-end twist drills produced in China on the market cost only US$1, and are used as hand tools. China now has the world's largest automotive industry. However, the high-efficiency production lines introduced by the automotive industry from abroad have used 80% to 90% of the cutting tools. They are still imported cutters containing domestic foreign-funded enterprises.
In recent years, most of the high-efficiency cutting tools used in the machining industry in China have been imported from foreign countries and contain foreign-funded enterprises in China. We are also exporting a lot of knives now, but they are mainly low-priced, standard tools. In 2004, China produced about 2.5 billion knives, of which 2 billion were mostly exporters of low-priced and low-cost tools. In the following years, exports were still basically medium and low-grade tools. Now our country's tool factory mainly produces traditional standard tools. Judging from the technological development trend of the machinery manufacturing industry, the proportion of high-efficiency CNC machine tools in China's factories will increase year by year, and the demand for efficient and advanced tools will increase rapidly, while the demand for traditional standard tools will decrease year by year.
The current situation of supply and marketing of tool production in China is that high-end advanced tool products mainly rely on imports from abroad, while low-grade tool products export most of their malignant expansion. This situation must be changed as soon as possible. China's machinery manufacturing industry uses a large number of standard tools, while developed countries use a large number of high-efficiency cutting tools, resulting in far lower processing efficiency in China than in foreign countries.
Alnico Magnets are traditionally classified using numbers assigned by the Magnetic Materials Producers Association (MMPA), for example, Alnico 3 or Alnico 5.
Alnico magnets are produced by casting or sintering processes.[8] Anisotropic alnico magnets are oriented by heating above a critical temperature and cooling in the presence of a magnetic field. Both isotropic and anisotropic alnico require proper heat treatment to develop optimal magnetic properties-without it alnico's coercivity is about 10 Oe, comparable to technical iron, which is a soft magnetic material. After the heat treatment alnico becomes a composite material, named "precipitation material"-it consists of iron- and cobalt-rich[9] precipitates in rich-NiAl matrix.
Alnico's anisotropy is oriented along the desired magnetic axis by applying an external magnetic field to it during the precipitate particle nucleation, which occurs when cooling from 900 °C (1,650 °F) to 800 °C (1,470 °F), near the Curie point. Without an external field there are local anisotropies of different orientations due to spontaneous magnetization. The precipitate structure is a "barrier" against magnetization changes, as it prefers few magnetization states requiring much energy to get the material into any intermediate state. Also, a weak magnetic field shifts the magnetization of the matrix phase only and is reversible.
Alnico magnets are ideal for high temperature applications up to 550ºC
. Cast Alnico Magnet is very stable, has good corrosion resistance and a typical hardness of 50 Rockwell C. Once cast, the material is so hard that the only machining possible is grinding
. Cast Alnico Magnet represents the most versatile magnet material available. The range of properties can be accurately designed for specific applications by changes to element analysis and heat treatment.
Cast Alnico Magnet
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Jinyu Magnet (Ningbo) Co., Ltd. , http://www.magnetbonwin.com