Carbide die life of more than ten times that of steel or even dozens of times

Carbide die life of more than ten times that of steel or even dozens of times, hard alloy moulds only high hardness, high strength, corrosion resistance, high temperature resistant and low expansion coefficient, are generally use cobalt tungsten carbide.

As the market standard material YG3, YG6, YG6X YG8. YG15, YG20, YG20C, YG25 and HU20 HU222, HWN1 (non-magnetic alloy mold), etc., using native carbide material, low pressure sintering and other special craft, toughness is better than the regular production, life will also improve 3-5 times.

Hard alloy moulds according to use can be divided into four categories:
The first category for cemented carbide drawing die, most of this kind of mould of cemented carbide mould. At present the main brand of wire drawing die YG8, YG6, YG3, followed by the YG15, YG6X, YG3X, developed some new brands, such as used in high-speed wire drawing new brand YL, and from the number of imported wire drawing die CS05 (YLO. 5), CG20 (YL20), CG40 (YL30); K10/19 dated, ZK20 / ZK30.

The second type of mold is cold cold heading die, plastic mould, the main brands are YC20C, YG20, YG15, CT35 and YJT30 MO15.
The third type of mould is used for magnetic material production of non-magnetic alloy mold, such as series of YSN YSN (20, 25, 30, 35, including 40) and steel bonded magnetic mold brand TMF.

The fourth class for hot-work die, this kind of alloy temporary top brands, the market needs to increase. Cemented carbide mould is: cold heading die, cold punching die, drawing die, hexagonal die, screw die, etc.

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China's cemented carbide market should be changed from supporting role to lead

According to China association of tungsten carbide branch, according to the data provided by the 2013 national more than 300 cemented carbide production enterprises, has more than 30 professional scientific research institutes, the cemented carbide industry workers, more than 25000 people. By 2013, with 100000 t/a capacity of tungsten concentrate, 180000 t/a of tungsten and tungsten acid salt production capacity, production capacity of 62000 t/a tungsten carbide, carbide production capacity of 38000 t/a, Co and Ni, Ta, Nb, Ti matching supply ability.

In 2013 China's cemented carbide production of 2013 tons, cemented carbide industry sales income is 20.9 billion yuan, carbide exports nearly 5000 tons, export more than $360 million, hard alloy deep-processing products output reached 6600 tons, about a third of the alloy production. Production by carbide product variety is complete, the basic types of more than 40000, output and varieties of basic can meet the needs of China's economy.

Main problems of cemented carbide industry in China: one is the enterprise on a smaller scale, the industrial concentration is not high. According to incomplete statistics, 199 cemented carbide enterprises average annual capacity of 176 tons, with average annual output of 86 tons, annual output over 1000 tons of only four companies. Second, less investment in science and technology, the lack of high-end technical personnel, technology research and development ability is weak. Cemented carbide industry in China in the field of science and technology investment is less than 3% of sales revenue, science and technology development level is not high, less original core technology achievements. Third, the low level of product quality, product structure need to be adjusted. China's cemented carbide production accounts for more than 40% of world output, but the carbide sales income is less than 20% of the world, mainly due to the high performance super fine alloy coating, high precision, high performance grinding blade, ultra hard tool materials, complex, precision carbide nc cutter large products less high value-added products production, deep processing and varieties of form a complete set is not complete.

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With China's rapid expansion of the auto industry, auto parts machining of cutting tool of increasing demand, China's iron and steel, transportation, construction and other fields is also increasingly strong demand for cemented carbide. In foreign cemented carbide in the multinational company's strategic vision, the Chinese market has quietly changed from supporting role to lead.

Analysis indicates that, to the end of the 12th five-year Chinese cemented carbide production reaches 30000 tons, sales income reached 30 billion yuan, deep processing of products more than 40% of the total production of cemented carbide. Export "11th five-year plan" will be doubled compared to more than $1 billion. Carbide will be to develop in the direction of deep processing, form a complete set of tools; To superfine, super thick and coating composite structure direction; To develop in the direction of circular economy, energy conservation and environmental protection; To develop in the direction of motors, miniaturization.
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China's nuclear grade zirconium alloy products complete manufacture process

Our country with independent intellectual property rights of nuclear grade zirconium alloy products complete technology development with independent intellectual property rights in China's nuclear grade zirconium alloy products complete manufacture process Major progress was made in our country independent research and development of nuclear fuel components.

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On April 2, 2014, China guangdong nuclear group, head of the science and technology research and development department Zou Yongping revealed to the journal of science and technology press, they have completed the independent brand of nuclear fuel component structure design, with independent intellectual property rights of nuclear grade zirconium alloy product trial process has been completed and the independent nuclear fuel performance analysis software has launched a trial version. Nuclear fuel is uranium, which was burned into small cylindrical uranium oxide ceramic pellets, piled up in the tube made of zirconium alloy cladding, make it their slender rods, and the fuel rods according to certain rules are assembled into a fuel assembly, is available for plant use. Nuclear reactor core containing hundreds of nuclear fuel components, the total weight of dozens of tons. Zirconium alloy based on zirconium base to add other elements, constitute the non-ferrous alloy. With the constant improvement of the performance requirements of nuclear fuel components, developed has good mechanical properties, corrosion resistance and radiation resistance of high performance nuclear grade zirconium alloys has been the nuclear main research direction of the advanced countries. Nuclear grade zirconium alloy and high performance in the high temperature and high pressure steam and water is a must have good corrosion resistance and mechanical properties of moderate and low atom thermal neutron absorption cross section, has good compatibility to the nuclear fuel, so only can be used as a water-cooled nuclear reactor core structure materials (fuel cladding, pressure pipe, bracket and channel), which is the main purpose of the zirconium alloy. Nuclear fuel component is the core component of the plant, it provides energy for nuclear power plant at the same time, is the first barrier to prevent nuclear, a direct impact on the plant safety, reliability and economy. At present, the large commercial nuclear power units used in the design and manufacturing technology mainly depends on imported fuel assembly.

To ensure the safety of the nuclear fuel supply in our country from the fuel assemblies of the core technology of others, in 2009 founded guangdong nuclear fuel research and development center, won the national energy administration after "the national center for energy research and development of advanced nuclear fuel element (experiment)" opening, and bear the national nuclear energy development project "PWR fuel element design and manufacturing technology" the development of the work. Depending on the product research and development, CGNPC within five years accumulative total investment funding nearly 800 million yuan, set up with international leading level of the nuclear fuel thermal performance analysis platform, reactor physics calculation analysis platform, integrated fuel assembly thermal test device, hydraulic performance comprehensive test device, mechanical comprehensive test device, pool detection device research and development facilities, such as established by the domestic and foreign nuclear fuel of senior experts and technicians in the field of research and development team. Currently, CGNPC has completed its own brand products have eight feet, 12 feet, 14 feet fuel components, high-performance nuclear grade zirconium alloy, nuclear fuel performance analysis software package, such as product development, at the same time to carry out the study of fault-tolerant fuel the next generation of accident. Zou Yongping said, these research results can meet the three generation of nuclear power technology in China "hualong number one" the needs of the construction and operation, will also be carrying nuclear power units under construction in China is upgrading "Chinese core" to provide more product choice, for the safe and stable operation of domestic nuclear power units in the escort.

Best non-standard products Tungsten Carbide Tube, Carbide Bushings, Carbide Sleeves, Tungsten Carbide Seal supplier in China.

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Below is prolonging the service life of the drill pipe method, must want to know

Use the drill pipe or should pay attention to some aspects, which to improve the work efficiency and prolong its service life has important practical significance, at the same time save project costs, is each consumers need to know!

1, when using the new drill pipe, shall determine the bit before cutting (protect the shaft head) thread is also close to the new button a bad turn is easy to damage the new drill pipe thread is widespread losses, caused by leakage, such as card buckle, loose state.

2, drilling and digging for the first time, in use should be first new button "grinding", which includes, first wipe on thread oil science and technology innovation, and then use drilling machine to twist, to open the domestic demand, the oil with thread to open again, and repeat three times, can avoid wear and card buckle.

3, as far as possible to maintain drill pipe under the ground and on the ground in a straight line, so that we can avoid the threaded part of the lateral force and don't need to wear lots of even jump buckle drill pipe, pay attention to the anchor drill avoid moving force in the construction is very important.

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How to correctly choose carbide grades?

How to correctly choose carbide grades



Correctly choose carbide grades, effective use of cemented carbide is the vital factor. When choosing carbide grades, should be paid attention to:

1, the physical and mechanical properties of the rock formations, such as hardness, grinding, and its shape characteristics, such as such as density, fracture, joint, caves, etc.

2, rock drill model, such as light, heavy, etc.

3, broken rock method, mainly include cutting, cut up, crushing, smash, etc.

Please remember this sentence:

Not the best product in the world, only the most suitable for your products!

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Cutting coal and rock mining machinery knives use SIX STAR HARDMETAL carbide auger tips.

Cutting coal and rock mining machinery knives, including "flat cutter tooth (flat pick)", "conical cutter tooth (conical pick)"; "Radial cutting teeth (radial pick)", "cut to cut teeth (tangential pick)", etc.

The wear mechanism of the literature or nature as mechanical wear with thermal fatigue wear and abrasive wear. It is not hard to see, is quite harsh pick the performance requirements of surfacing welding layer, the first itself to wear, that is to say, in the process of coal mining, cutting teeth welding layer between the coal seam and continuing friction movement happens, pick the surfacing layer must withstand seam long wear. In this case, the surfacing layer hardness, wear resistance, the higher the better; Second, cutting teeth must be considered in the process of cutting coal and rock inevitable impact loading, if the hardness of surfacing layer is too high, metal toughness is poorer, surfacing welding layer metal are prone to cracking or fracture. Therefore, the higher the hardness of surfacing layer is not necessarily better, but should be comprehensive consideration, make its have good anti-wear performance. Anti-wear performance, refers to the high wear-resisting performance premise conditions, appropriate to reduce the hardness and wear resistance, with its moderate wear resistance improved comprehensive damage resistance hardfacing layer. The best comprehensive damage resistance and hardness of surfacing welding layer, there is a matching relationship between the relationship of quantitative determine, welding layer for cutting teeth welding material properties of the major improvements have a positive role.

Pick the use of surfacing welding layer performance influence factor is more, on the whole there are three main factors: one is the influence of load force.

In the process of coal mining, which increase the effect of contact force between coal and rock in the surfacing layer and factors, such as increasing the shearer traction speed, cutting resistance of increase, cutter tooth wear phenomenon will increase;

Second, the influence of geometric parameters and arrangement of. Reasonable cutting gear geometry parameters and a good match with the coal rock physical properties of cutter tooth arrangement, can reduce the cutting tooth cutting resistance and axial force, so as to slow the abrasion of cutting teeth;

3 it is surfacing layer and the influence of coal rock material properties. Coal quality of hard and soft and the amount of waste rock, very obvious effects on cutting tooth wear. Coal quality soft, less waste rock of coal rock, cutter tooth cutting resistance is small, shearer traction resistance is small, the wear rate of smaller; On the other hand, the wear rate of larger.

In the surfacing layer performance influence factors above, the first and the second is that external factors, the third point is the internal factors, external cause by internal work. That is to say, both the influence of load force and the influence of geometric parameters and arrangement of, eventually to reflect to the surfacing layer and the influence of material properties on coal. Material properties is the core factor. Here, the coal and rock material properties were selected in advance (i.e., by coal rock characteristics is the existing objective), can change the material properties is pick surfacing layer. And pick the change of the surfacing layer properties, in the final analysis depends on the material composition, microstructure and properties of surfacing, and strict implementation of form a complete set of welding technology.

In the key position of cemented carbide parts, using six star carbide company production of two kinds of different shape of alloy tooth, has the very good impact resistance and wear resistance, greatly improving the service life of the product, save the cost for the customer.

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