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The high temperature and high hardness tungsten steel bar of UF20 superfine alloy tube is used for heat resisting alloy
Tungsten is a hard alloy, also known as tungsten titanium alloy. The hardness is vickers 10K, second only to diamond tungsten steel. Because of this, the tungsten steel products (commonly known as tungsten steel watches) have features that are not easily worn. Cemented carbide is a kind of powder metallurgy which is mainly composed of hard and bond. Hard phases are hard, mainly of various carbide. Its main carbide includes: tungsten carbide (WC), titanium carbide, tantalum carbide and niobium carbide. In most cases, cobalt is used as a bond. In hard alloy factory, hard alloy is classified according to ISO standard. This classification is based on the material category of the artifact (P,M,K,N,S, H). Different hard alloy materials have different USES, such as turning, milling, hole machining, thread machining, cutting slot, etc. A steel containing tungsten containing tungsten
Hard alloy sales series: Wear-resistant series of wear-resistant series non-magnetic series, series of high temperature series fine particles series and more than 50 varieties. Hard alloy sales shape: Standard parts and various non-standard parts: Include threaded hole circular pillars, round, ring, square, conductive block, long strip, long round bar and other shaped pieces and fine grinding sticks. All the materials are red through HIP treatment, remove the micropore of the alloy, and increase the mechanical properties of alloy, flexural strength and so on, so as to ensure the quality. Tungsten steel is introduced Tungsten steel is about 18% tungsten
Tungsten is a hard alloy, also known as tungsten titanium alloy. The hardness is vickers 10K, second only to diamond tungsten steel. Because of this, the tungsten steel products (commonly known as tungsten steel watches) have features that are not easily worn. Cemented carbide is a kind of powder metallurgy which is mainly composed of hard and bond. Hard phases are hard, mainly of various carbide. Its main carbide includes: tungsten carbide (WC), titanium carbide, tantalum carbide and niobium carbide. In most cases, cobalt is used as a bond. In hard alloy factory, hard alloy is classified according to ISO standard. This classification is based on the material category of the artifact (P, M, K, N, S, H). Different hard alloy materials have different USES, such as turning, milling, hole machining, thread machining, cutting slot, etc. A steel containing tungsten containing tungsten
Round steel: Round steel round steel is a long strip of round shape. The specifications are expressed in diameters, such as "50", which means round steel with a diameter of 50 mm. Stainless steel rod (15 pieces) Dongguan sumitomo co., LTD., to provide you with: supply of imported tungsten steel YL80.2 tungsten steel bars, tungsten steel ultra-thin blade high strength, high speed cutting supplies imported tungsten steel YL80.2 tungsten steel strip, high speed cutting tungsten steel ultra-thin blade high strength specifications, the wholesale supply imported tungsten steel YL80.2 tungsten steel bars, tungsten steel ultra-thin blade high strength, high speed cutting supplies imported tungsten steel YL80.2 tungsten steel strip, high speed cutting tungsten steel ultra-thin blade high strength using method, supply imported tungsten steel YL80.2 tungsten steel strip, high speed cutting tungsten steel ultra-thin blade high strength considerations, supply imported tungsten steel YL80.2 tungsten steel strip, high speed cutting tungsten steel ultra-thin blade high strength product description and other related information, welcome your consultation and look at it.
YL50 hard alloy plate, which is a hard alloy plate made of superfine particles, the general standard size is 105x105, and the thickness is the thinnest 2MM to 60MM hard alloy profile. YL50 is a super fine grain tungsten steel material, which has a hardness moderate (HRA86.5) and good bending strength (4000). It has the characteristics of wear-resisting and not easy to collapse and not easy to break. Suitable for all kinds of special-shaped wearing parts (shape more complex), tungsten steel needle, tungsten carbide insert, tungsten steel liner, powder metallurgy mold die, magnetic materials and perforated mold shaped concave die chamfering punch.
Balance of tool shank and tool
Machine tool users often hear that they have to balance the handle they use, but they don't know if that's true. If you don't balance the handle, will you damage the machine tool or the workpiece? The right question is not "should you balance the tool with the handle?" But "when do you balance a tool with a handle?"
Let's first explain the imbalance. In the spindle of the machine, there are many rotating parts, including the main shaft itself. If the motor does not integrate with the spindle, it also includes the rotor, gear or pulley of the motor. In the milling process, there is a tool shank, tool, pull rod (nail), chuck and a set of bellerville gaskets. In machining, the workpiece is also a rotary part, and may include a clamping device (such as a chuck claw). All of these components are made and assembled by humans, so they are not perfect. The quality center of the returnable body and the center of rotation (which is determined by the spindle bearing of the supporting rotary body) are not the same center. The net effect is equivalent to the quality of a deviation from the center of the spindle. The size of the unbalanced mass and its distance from the center of rotation play the same role, so they are usually grouped together. Unbalance measures can be expressed in grams of millimeters (GMM) or ounces (oz. In.).
In most cases, the user does not have the ability to adjust the spindle balance. If you have this ability, you need to adjust the balance between the handle and the spindle at the same time. The allowable unbalance of U is calculated using the following formula:
In the formula, G is the equilibrium level, and 9,549 is the same parameter as the unit, W is the mass of the rotating object (kg), and RPM is the spindle speed.
The equilibrium level G depends on the processing requirements. For example, generally speaking, the balance grade of general machine tools is G6.3, high-speed machine tool is G2.5, and precision machine tool is G1.0. The allowable unbalance of the U depends on the quality of the object being balanced, and the calculation results of the U value are not the same for the tool, tool and handle, and the assembly of the entire spindle.
A more important consideration for different processing machines is whether the force generated by the rotation is a considerable part of the force produced by the cutting process. All forces, whether the cutting force or the unbalance force, must be borne by the connecting link between the bearing and the tool and the spindle. In rough machining, the cutting force can be as high as a few hundred newtons, and a few newtons' unbalanced forces are irrelevant. However, in the finishing process, the cutting force is only a fraction of Newton, and the same unbalanced force is a big problem. So how do you compute the imbalance? The calculation formula of unbalanced force F is:
F = me 2 omega
In the formula, m is unbalanced mass, e is eccentricity (the distance from the unbalanced mass to the center of rotation), omega is the spindle speed.
The unbalanced force F increases with the omega squared of the spindle. If the spindle speed is doubled, the unbalanced force generated by the rotation will increase fourfold. For example, the uneven measurement of the tool and handle is 5gmm, and when the spindle speed is 5,000 RPM, the resulting imbalance force is 1.37 newtons. When the spindle speed is 40,000 RPM, the same tool and handle generate an unbalanced force of 87.7 newtons.
Balancing the balance will benefit a lot, but the balancing act also costs money. Shop or need to buy a balancer, or pay for the service balance. A balanced handle usually has one or more weights, which can change the equilibrium state by adjusting its position. Compared with the ordinary handle, the price of this handle more expensive, and need to have additional length to accommodate the handle weight ring, and increase the length of the handle will decrease its stiffness, usually also decreases the metal removal rate can be reached.
An effective strategy for determining whether or not to balance the handle is to compare the unbalance force with the cutting force. If the unbalanced force reaches more than 5% of the cutting force, it is worth improving its equilibrium state. Generally speaking, for the machine tool with lower spindle speed, the importance of balance is relatively small, while the balance problem of high speed cutting machine is much more important. Even with high-speed machine tools, many workshops can use pre-balanced tool handles and pre-balanced tools to solve the balance problem. However, for very high precision and high speed machining, it is still necessary to balance the tool handle and tool.
Our country has become a great exporter of hard alloy roller
Cemented carbide roll rings as a kind of hard material, is made up of hard phase (tungsten carbide) and metal bonding phase (usually in the form of metal cobalt, nickel) and trace rare metal elements, the content of the performance by the bonding metal and tungsten carbide particle size.
Champ consulting analyst pointed out: cemented carbide roll rings are called ring, tungsten carbide alloy roller is the consumption of steel bar, wire rod rolling an important part of a larger, at the same time with the apparent quality of rolled steel, dimensional accuracy and cost are closely related. Hard alloy roller ring has good turning ability, no special lathe, and the existing ordinary lathe can be used to cut the roller ring. When cutting, the blade can be made of hard alloy cutter with high hardness. Hard alloy roll has a whole body type and a combination of two kinds.
Cemented carbide roll rings, mainly for the production of high speed steel and other steel processing products in the current market in the proportion of the low-end products is much lower, but with the improvement of people's living standard as well as the future environmental protection consciousness enhancement, market demand for high-grade carbide roll rings will increase. In recent years, China's cemented carbide industry gets rapid development, numerous cemented carbide products, application range is wide, and the rapid development of industry, then pull the cemented carbide roll rings the demand of the market, promote the development of cemented carbide roll rings industry. In the january-june 2014, the demand reached 856 million yuan, a year-on-year increase of 26.2%. In 2013, China's demand for cemented carbide rollers reached 16.82 billion yuan, a year-on-year increase of 13.1%.
At present, China is a major exporter of hard alloy roller rings in the world. The export volume accounts for most of the world market, and the export market is mainly developed countries such as Europe, America, Japan and so on. The future, with the rapid development of the domestic steel industry, the market demand for cemented carbide roll rings, but as people living standard and the improvement of environmental awareness, the specification of the national policy adjustment and industry association, made of cemented carbide cemented carbide roll rings market proportion will increase gradually, ultimately promote the domestic market of cemented carbide roll rings market demand, export proportion will decline, and in the export products, high-grade products export proportion will be improved.
The main production material of hardened alloy roller ring is tungsten carbide and the main content of adhesive is cobalt. The price fluctuation of the main raw material affects the production cost of the hardened alloy roller ring industry, which affects the profitability of the hardened alloy roller ring industry. Tungsten and cobalt reserves is very few, and the uneven distribution, and after a long period of industrial development of consumption, the two kinds of raw material resources increasingly depleted, the price fluctuation of great uncertainty, in 2014-2018, price fluctuations will still exist. The increase in the price of raw materials will improve the production cost of hardened alloy rollers and reduce the profit margin. Therefore, it is important to take measures to reduce the influence of raw material price fluctuation on enterprises, such as the integration of industrial chain.
Champ consulting issued by the China cemented carbide roll rings in 2014-2018 the industry analysis and market development research report showed that the hardening alloy roller ring high technical requirements, many small firms among industry, with the development of the industry, the market demand of high performance quality products will gradually increase, some small and medium-sized enterprise technical force is weak, lack of r&d expenditure, in the future market competition will be being washed out gradually, some superior enterprises appeared as the economies of scale, to raise the level of technology products, expand the application scope of industry's overall profitability will be improved.
Tax policy helps jiangxi to create "China's thin golden valley"
Ganzhou in jiangxi province with rich heavy rare earths in the ionic and wolframite resources enjoys a good reputation, the heavy rare earths in 70% a year, 70% of black tungsten are produced here, known as the "kingdom of rare earths, tungsten world," said.
The development of "China thin golden valley" is the strategic deployment of jiangxi provincial committee and provincial government to promote the revitalization of the Soviet zone with good resources. In jiangxi province, the internal revenue service (irs) has made a voluntary policy to reduce the cost and service development of the valley and promote the "thin golden valley" by using tax incentives such as tax breaks.
The policy dividend helps the "thin gold valley" to start construction The state council about support of jiangxi such as the revitalization of the several opinions of the development of the central Soviet area to ganzhou five strategic positioning, one of the strategic positioning is the "national rare metals industry base, advanced manufacturing industry base".
With the support of the "opinions", strongly support the construction of ganzhou city in jiangxi province "China rare jingu", giving full play to the advantages of ganzhou tungsten and rare earth resources, to build the national well-known rare earth metals industry gathering area, the construction of collection of rare earth metals industry innovation elements in the integration of "valley" industrial ecology, rare earths and high-end technology, top talent, high-end tungsten industry and high-end financial agglomeration.
Tax policy has become an indispensable support for the development of "thin golden valley". In June 2015, in jiangxi province development and reform commission (NDRC), the national tax departments such as joint, driven by comprehensive utilization of rare earth resources into the comprehensive utilization of resources VAT preferential catalogue of products and services, can enjoy the policy of refunding upon payment of VAT is out.
With the dividend of policy, the "thin gold valley" construction has a greater appeal. "With the establishment of the thin golden valley, ganzhou rare metals industry will have a chance to take off." Wu yanghong, general manager of the new materials co., LTD., ganzhou teng co., LTD. The company's production capacity, sales revenue and profit doubled in the first three quarters of this year, driven by the stimulus of the thin gold valley. According to statistics, the business this year has been enjoying high and new technology industry preferential tax red envelopes of nearly 40 million yuan, profit margins increased from 10.65% in 2016 to 29.61% in 2017, has greatly increased the enterprise product core competitiveness.
According to the local tax department, the rare earth rare metal industry in ganzhou broke the barrier of 100 billion yuan in 2016, with a total of nearly 900 million yuan of tax revenue and nearly 100 million yuan of tax relief. In the first three quarters of this year, the tax cuts were further strengthened, reducing tax revenue by nearly 200 million yuan for relevant enterprises. The dividend of preferential tax policy has brought the enterprise to the negative side and has been lightly loaded into the field, injecting a strong injection into the construction of the "thin golden valley" in the long term. We will encourage innovation in the transformation and upgrading of traditional enterprises
To create "China's thin golden valley", ganzhou has the urgent need for the development of industrial upgrading. Although has the resources and of ganzhou tungsten industry, policy, and the advantages of the industrial base, but has not yet formed the brand advantage, most enterprises focus in the field of upstream acquisition, separation and primary processing, low value-added products, single industrial structure. In order to encourage enterprises to innovate technology, promote the rare earth industry to high-end, low-carbon, intelligent development. By local taxation department specifically combing enjoy preferential 33 high and new technology enterprise income tax problem solved "claim additional deduction r&d tax preferential policy guide policy such as assembly, help enterprise should enjoy.
"Technological innovation is the driving force of our enterprise development. Tax policy provides us with the support of real gold and silver for our development of high and new technology, and enterprises have a taste for innovation." When it comes to the company's innovative development in recent years, the head of jiangxi jinli permanent magnet technology co., LTD. It is reported that in recent years, the company enjoys preferential tax more than 50 million yuan, for the development of the western region to enjoy preferential claim additional deduction technology research and development costs more than 2000 ten thousand yuan, and all will be preferential tax relief funds invested research and development, since 2013 has 37 new r&d project, apply for 11 national patents, r&d investment in 80 million yuan, the powerful enterprise innovation capacity and market competitiveness.
Optimize the environment for "thin golden valley" to build a nest At present, the construction of "China's thin gold valley" has been invested 1.25 billion yuan, with a land of 1.78 million mu and 5169 mu of flat land. These data show the solid industrial base and superior "hard environment" of "thin golden valley".
In the "soft environment", relevant departments have done their homework. In may this year, 2017 ganzhou "China dilute jingu" (shenzhen) industrial cooperation meeting held in shenzhen, the main leaders of ganzhou city government site "dilute jingu" preferential policies are introduced, the superior environment, quality of service. The local government has established the "five one" service mechanism, and the state tax department has fully played its functions, constantly optimizing the tax service and making good tax policies. Specialized in recent years, the national tax department issued the tax department service "China dilute jingu" construction measures twelve "the support the development of the rare earths, tungsten industry article 13 the preferential tax policy, such as file, complete the form and launch from city tong, appointments, delay service, etc. Series of services, continue to carry out the" convenient tax spring breeze action "and" cost reduction, superior environment "special action, build the" invoice to online shopping, network access of the tax office, training longuages "online business processing center, creating" low cost, high efficiency, obstacles to zero "tax environment. "The tax department is actively working with companies that invest in 'thin gold valley' to bring policies to the door, and to find ways and ways to help enterprises solve practical difficulties when they encounter problems." Ganzhou chengzheng rare earth new materials co., LTD. Chairman lai cheng Ming.
Plant the sycamore tree and bring phoenix. Under the strong support of relevant departments such as the national tax, the business environment of "thin golden valley" is increasingly optimized. So far, the "thin golden valley" has introduced 23 rare earth and tungsten materials projects, with a total investment of 8.27 billion yuan. China's minmetals, China's sinochem, baosteel rare earth and other rare earth fortune 500 and domestic top 200 enterprises have also entered. "It is expected that in 2018, the main business revenue of the thin golden valley will exceed 200 billion yuan, and the industrial agglomeration will become more and more obvious, and a dynamic 'China thin golden valley' is thriving." Ganzhou thin gold valley investment and development co., LTD. Chairman liu guizhang said.