News & Events
The state council has issued a notice to the state to implement a specific mineral species for the use of the tungsten, tin, antimony rare earth minerals
Non-ferrous metal mining plays an important role in the socialist modernization construction in China, including tungsten, tin, antimony and ionic rare earth mineral, is our country the advantage of has a pivotal position in the world. However, in recent years a large number of collective and individual (including partnerships) prospectors, mine owned by the whole people, the state's mining on planning of nonferrous metals in the mining and exploration areas and ionic rare earth mineral resources to combat dug, and even theft and plunder mineral products of mining enterprises owned by the whole people and equipment, production facilities, was badly damaged by the country's mineral resources, geological units of mineral exploration right and mining right of mining enterprises owned by the whole people is a serious violation, exploration in the mining and mining enterprises of production and living order and social order severely disrupted, threats to mine safety in production, circulation order, rampant smuggling, resulting in serious losses to the state and the people's interests. In order to rationally develop and utilize and protect the nation's precious resources, promote the readjustment of the mining order, according to the "mineral resources law" article 15 of this law, the state council decided to tungsten, tin, antimony and ionic rare earth minerals listed as the state shall ensure protective mining for the specified minerals, from mining, mineral intergrowth, processing to the market sales, export and so on each link, implement unified management plan. For this purpose, the special notice is as follows:
A, tungsten, tin, antimony and ionic rare earth minerals respectively by China nonferrous metals industry corporation and rare earth leading group to assist the state planning commission of the state council in charge of the mineral resources development and mid-long term plans of the mining area planning, implement planned mining, according to the principle of place after the first, open mining enterprises owned by the whole people; It is not suitable to establish the scattered resources of mining enterprises owned by the whole people, and permit the exploitation of mining enterprises by collective ownership; No individual (including unlinked) mining is prohibited.
The state prohibits the ownership by the whole people, the collective ownership of mining enterprises and the joint venture for the exploitation of ionic rare earth minerals. Without the approval of the state council leading group for rare earth no unit or individual may receive without the personnel of the People's Republic of China resident identity card into ionic rare earth mining area, or to provide the mine geological data, the ore samples and production technology.
Three, every exploitation of tungsten, tin, antimony and ionic rare earth minerals or predominantly mining these minerals mining enterprises owned by the whole people and collective ownership enterprise in mines, rare earth need to the China nonferrous metals industry corporation and the state council leading group for examination and approval. In accordance with the approval document, the examination and approval procedures for mining enterprises shall be opened in accordance with the provisions of article 13 and 14 of the mineral resources law. To the mining license shall be issued for mining enterprises, owned by the whole people in accordance with the "interim measures for mining registration and management in mining enterprises owned by the whole people and the state council on amending the interim measures for mining registration and management in mining enterprises owned by the whole people > decision" provisions; The mining license shall be issued for mining enterprises under collective ownership, according to the provisions of article 14 of the mineral resources by the provincial, autonomous regional and municipal people's congress standing committee authorized institutions.
The mining enterprises in tungsten, tin, antimony and ionized rare earth minerals, which have been opened before the notice, shall be cleaned and cleaned up. Conform to the conditions of ore, has a legitimate mining license, respectively to the China nonferrous metals industry corporation and the state council leading group for rare earth fill do after the formalities for examination and approval, the original mining license is valid, can continue to mining; If it is not in conformity with the conditions of the mine, the people's government of the province, autonomous region or municipality directly under the central government shall, within a specified period of time, rectify or stop the mining. The above work should be completed by the end of 1991. To have a mining license of individual (including partnerships) prospectors, approved by the county people's government and the original unit with the competent department in charge of geology and mineral resources, industry department to clean up, by the original license issuing organ deadline back mining permit and business license. For unlicensed miners, it is immediately banned.
Four rare earths, China nonferrous metals industry corporation and the state council leading group for tungsten, tin, antimony and ionic rare earth minerals, smelting products and tungsten processing (including hard alloy) total production plan and the relevant provinces, autonomous regions and municipalities directly under the central component of the plan, and organize their implementation. Engaging in tungsten, tin, antimony and ionic rare earth minerals tungsten smelting and processing (including hard alloy) of state-owned enterprises, shall be separately by the China nonferrous metals industry corporation and the examination and approval of the state council leading group for rare earth by the state bureau of technical supervision issued on the basis of the approval document and the relevant provisions of the production license. The state prohibits collective-owned enterprises and individuals (including lianhu) from the smelting and tungsten processing of tungsten, tin, antimony and ionized rare earth minerals (including cemented carbide). The local people's government of the county shall, in conjunction with the relevant departments, shut down the smelting and processing plant that has been opened, and the original issuing authority shall revoke its business license.
Five, tungsten, tin, antimony smelting products and their products (tungsten concentration, low degree of tungsten, tungsten acid, secondary tungsten acid, ammonia, sodium tungstate and tungsten powder, tungsten steel, tungsten trioxide, tungsten carbide, blue tungsten and tin ore concentrate, pure tin, soldering tin, antimony concentrate, antimony sulfide, refined antimony and antimony oxide and other antimony) and ionic rare earth minerals, rare earth, respectively, by the China nonferrous metals industry corporation and the state council leading group, in conjunction with the purchasing units designated by the state administration for industry and commerce, unified purchase. The domestic sales of tungsten, tin, antimony ore products and smelting products are managed by China nonferrous metals industry corporation. The domestic sales of ionotype rare earth minerals are formulated by the rare earth leadership group of the state council. Free trade is prohibited. Must with other mineral resources, mainly in mining enterprises, the paragenetic and associated tungsten, tin, antimony and ionic rare earth minerals to comprehensive exploitation, reasonable use, its minerals should, to purchasing units designated sales. The above minerals and its smelting products as a kind of export commodities management, by mfert jointly with China nonferrous metals industry corporation and the state council leading group for rare earth export plan, designated export unit, and formulate measures for the management of export. The export plan shall be issued by the ministry of economic and trade after the approval of the state planning commission. Export licences shall be issued by the ministry of economic and trade in accordance with the relevant provisions of the export plan. Unplanned exports are strictly prohibited to crack down on smuggling activities.
Sixth, strengthen the tungsten, tin, antimony and ionic rare earth minerals of the main mining area public security work, public security department set up in the public security agencies according to specific circumstances, to protect the country's mineral resources, safeguard the order of the mining area of social security. The mining enterprises should earnestly strengthen the internal security work.
The relevant departments of the people's governments of the provinces, autonomous regions and municipalities directly under the central government and the relevant departments under the state council shall, in accordance with the above-mentioned articles, formulate and implement measures for implementation. Mining area of dispute of this mining remains the readjustment of the local people's government to continue to pay special attention to, and ensure the subject status of the mining enterprises owned by the whole people, to guarantee the legitimate mining right has been made of the legitimate rights and interests of mining enterprises owned by the whole people. For units that have entered into the mining areas within the mining areas under the ownership of the whole people's mining enterprises after the publication of the mineral resources law, they shall withdraw unconditionally within a time limit. The provisions of article 3 of this notice shall be determined by the China nonferrous metals industry corporation or the rare earth leadership group of the state council. We must do a good job in the designated demarcation and issue of mining licenses. To follow the policy measures formulated by the relevant departments to do good work. Tungsten, tin, antimony and ionic rare earth minerals, the main mining area by the state council working group on law enforcement inspection, assist the local people's government to carry out the spirit of this circular, do well the readjustment, investigate major cases, resolutely thanks to dig the malady of combat.
Eight, the people's liberation army, armed police, the justice department of tungsten, tin, antimony and ionic rare earth mining companies and smelting enterprise, the competent department in charge of the ore, the armed police headquarters and the justice department according to the provisions of this notice, the license of examination and approval formalities, do a good job in the regulation of mine order. Its production plan is incorporated into the unified plan of the industry department. Ix. This notice shall come into force as of the date of issue. If other relevant provisions do not conform to the provisions of this circular, they shall be executed in accordance with this notice.
The manufacturing method of new type of table rubbing
The manufacturing method of new type of table rubbing
【 Patent abstract 】 the utility model discloses a new desktop rub silk machine, including (1) and two thread rolling roller table (2), each thread rolling wheel, respectively, and their corresponding straight gear (3) is installed on the same root rotational axis (4), two straight gear meshing transmission, and one of the spur gear and driven by a motor (5) the worktable equipped with workpiece support frame (6), the workpiece support stands by the base (6 a), the "H" shape support bar (6 b), both left and right sides is symmetrical arrangement of support roller (6 c), work table Settings are used to install the base of the rectangular chute (1 a). Simple structure and low manufacturing cost; No manual holding is required, convenient and convenient to avoid safety accidents. The workpiece support frame can be adjusted according to the specifications of the machining parts.
Patent description: a new type of table thread rolling machine
the utility model belongs to the mechanical processing equipment [technical field], which specifically relates to a new type of table rubbing machine.
the existing table rubbing machine, with complex structure and poor safety, requires workers to hold the workpiece in the process of rubbing. The main problems are: (I) workers holding hold will affect the quality of processing due to hand jitter. (2) large labor intensity and waste of human resources; (3) occasional safety accident involving operator injury. Utility model content
the purpose of this utility model is to provide a new type of table rubbing machine, which is simple in structure and high in installation and manpower saving.
in order to achieve the above, the utility model provides a new desktop thread rolling machine, including (1), tables, and installed on the workbench (I) the two thread rolling roller (2), and two thread rolling roller (2) the left and right sides is symmetrical layout, each thread rolling wheel (2) and their corresponding straight gear (3) is installed on the same root rotational axis (4), two straight gear meshing transmission, (3) and one of the spur gear (3) (5) driven by a motor, the key lies in: described the workbench artifact racks are installed on (I) (6), described the workpiece support frame (6) by the base (6 a), the "H" shape support bar (6 b), both left and right sides is symmetrical arrangement of support roller (6 c), two supporting roller (6 c) installed in the "H" shape support rod (6 b) of the upper left and upper right, and described in the "H" shape support bar (6 b) in the lower left side and right side respectively with the base (6 a) fixed together, described the workbench (I) Settings are used to install the base (6 a) rectangular chute (la), described the rectangular chute (Ia) is an extension of the direction parallel to the axis of the rotating shaft (4), as described in the lower end of the base (6 a) set have with rectangular chute (Ia) match and into rectangular chute (Ia) within the slider (6 a_l), described the rectangular chute (Ia) from one end of the thread rolling wheel (2) not well versed in order to prevent the slider (6 a_l) from rectangular chute (Ia) inside out
The development potential of hard alloy mold industry is huge
In recent years with the automotive industry, electronic information and household appliances, building materials and machinery industry, the rapid development of China's mold industry has achieved rapid growth, China's mold industry sales, up from 98 billion yuan in 2009 to $2016 in 184 billion, the compound annual growth rate reached 9.58%. The China mould market outlook survey and investment opportunity research report released by the China business research institute predicted that the total sales volume of the mould industry in China will exceed 200 billion yuan in 2018.
Mold is a tool for forcing metal or non-metal forming, which is an indispensable key process equipment in industrial production. Use mould parts of mass production with high efficiency, high consistency, low energy supplies, the advantages of high precision and complex degree, and is widely used in machinery, electronics, automotive, information, aerospace, aviation, light industry, war industry, transportation, building materials, medical, biology, energy and other industries, the industry about 60% - 80% of the parts need to rely on mold processing molding. Therefore, the mould manufacturing level is not only an important indicator of the manufacturing level of a country, but also determines the quality, efficiency and new product development capability of the country's products.
Low-standard mould has exceeds the demand in our country at present, but in large, precision, complex, long-life mold as the main representative of high technical content mold rate is still low, only about 60%, a significant portion of still rely on imports. Since 2009, China has imported about us $2 billion of molds annually, mostly high-grade precision molds, while export moulds are mainly low-grade, with low technical content and added value.
According to the analysis of relevant departments, the development trend of the mold industry in China in the next five years is that the mold products will develop in a large, sophisticated, complex, economical and fast direction. The technical content of the die is constantly improved, and the mould manufacturing cycle is shortened. The development of mold production towards informatization, ungraph, refinement, automation; The mould enterprise develops to the technical integration, the equipment is refined, the product brand, the management informationization, the management internationalization direction develops.
In this context, the hard alloy mold industry will have great development potential. Carbide die life of more than ten times that of steel or even dozens of times, hard alloy moulds with high hardness, high strength, corrosion resistance, resistance to high temperature and low expansion coefficient, etc, can meet the requirements of high-end precision industry to the mold.
According to the China mould industry yearbook (2012) compiled by the China mould industry association, plastic mold accounts for about 45% of the annual mould sales in 2008 and 2011. The stamping die is about 37 percent. Casting mould accounted for about 9%; Other types of molds are about 9 percent.
Planetary Thread Dies
Planetary thread dies is a kind of tool that USES the metal plastic deformation to roll out the thread
Use note editing
- 1. The screw machine has poor precision, large vibration and abnormal operation;
- 2. The axial displacement of the axial displacement of the roller is affected by the axial displacement of the roller, and the tooth lines are subjected to shear and compression.
- 3. The size of the rolled thread is not uniform, the surface is not cleaned, there is sand wheel, oxidized skin and dirt.
- 4. Uneven hardness of rolled parts (8.8 class bolts should be in 27~ 30HRC; The grade 10.9 should be in 35~ 37HRC, to prevent the hardening of the untempered high hardness (50~55HRC) and the hardness of the roller blade, which can cause the blade to collapse.
- 5. Do not add lubricant when rolling pressure, resulting in dry friction, which causes the sharp temperature of the tooth to rise sharply to exceed the heat of the roller, and the tooth is softened by excessive tempering.
- 6. Planetary thread roller dies must be fully demagnetizing before leaving the factory, leaving the residual magnetism, which will accelerate wear and tear due to the fine iron foam at work.
- 1. After the use of the roller, it should clean the iron pin in the clean thread, so as to avoid the next use of time.
- 2. When the roller is not used for a long time, it should be coated with oil on the surface to prevent the imprecise measurement of the air contact oxidation.
- 3. The rollers should be sorted and laid out in the custody. Do not throw away.
Custody note: edit