Centralizer installation matters have?

A, centralizer profile
Centralizer cementing tools, it makes simple, structure and beautiful, durable, centering force big, prone to overcome the original welded lifter desoldering, is a kind of centralizer can ensure drilling cementing quality.
Centralizer sort is various, according to the structure can be divided into the roller, the sliding block type, automatic reversing type, etc. Different structure and material of centralizer, applicable to different types of eccentric wear oil well. Use the centralizer eccentric wear prevention, centralizer is the most critical installation location, spacing, and number.
Second, use the centralizer
Because of the complexity of the oil well itself well conditions, make in the production process of rod-pumped well the following question.
1, the sucker rod eccentric wear: the partial grinding rod, can reduce the production efficiency of pumping Wells, increase production into this.
2, low pump efficiency: due to eccentric wear the friction increases the stroke and increasing the pumping unit load, increased energy consumption, the stroke loss is big, pump efficiency is low;
3, increase with the water content of the liquid, causes the liquid proportion increase, such making that the load of pump and leakage increase pump efficiency is reduced.

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Three, centralizer principle
Centralizer is applied in the oil field pumping unit well drilling tools, is to improve pump pump efficiency of a new type of products. Is to use the slide valve automatic open and close structure, the connection on the sucker rod, when sucker rod downstroke, slide valve uplink open up on the traditional oil duct, sucker rod on the trip, downward slide valve closed up on the traditional oil. Thus by piecewise lifting liquid column, block to reduce the load on the sucker rod and pump load, reduce the pump leakage, reduce elastic extension deformation of sucker rod, reducing the loss of stroke, so as to improve the effective stroke of the pump, increase the pump barrel filling quantity, improve the pump efficiency.
Four, centralizer install and use
1, the stroke loss minimum principle
According to the combination of the sucker rod, try to reduce the elongation of the longest rod load, suggested that every 1000 meters pump installation of this product 4-10.
2, according to the oil
This product because of the structure of the slide valve open and close automatically, can avoid ontology scaling wax, but avoid wax precipitation point as far as possible when installing this product. (use the factory production of liquid viscosity against the la increased centralizer can prevent this happening)
3, according to the curvature of Wells
This product should be appropriately increased in oil well eccentric wear serious place installation density, can play a better role of the anchorage rod.
4, pay attention to the product as far as possible to avoid the tubing coupling.

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the development of cemented carbide products.

1 the development of cemented carbide materials in order to meet the rapid development of high speed cutting technology, various is given priority to with cemented carbide cutting tool material performance has been improving, fine particles, and the development of ultra-fine grain cemented carbide and coating technology in the application of carbide cutting tools pronouncedly improved strength and toughness of cemented carbide material, use it to make the overall alloy cutting tool is gradually replaced traditional HSS cutting tools, to improve cutting speed and processing efficiency by several times, laid the important foundation for the application of high speed cutting. Solid carbide also have been applied in some complicated forming cutter and meet the demand of the diversity of product processing.

Carbide cutting tool materials in the 21st century should focus on development in two aspects: one is fine grains to nanoscale microcrystalline level. Carbide grain size is smaller, the higher the hardness of cemented carbide its wear resistance is better, the higher the toughness and stiffness, so as to expand the scope of its application; The second is using new technology and new technology development of new carbide carbide inner performance and quality. 2 coating technology for the development of cutting tool coating technology in the development of modern machining and the cutting tool plays a very important role, is developing rapidly since its advent, have made great progress in recent years, in particular, chemical coating (CVD) is still the main coating technologies of indexable insert, successively developed medium temperature CVD, thick film 3 oxidation

2 aluminium, new technology, such as transition layer on the basis of improving substrate material, make the CVD coating abrasion resistance and toughness is improved; And physical and coating (PVD) technology has also made significant breakthrough in the structure of coating equipment, technological process, automatic control, etc have made significant progress, developed to adapt to the high speed cutting, dry cutting, hard cutting better heat resistance coating, through to the coating structure innovation, developed nano, multilayer structure such as a large number of new type of coating, greatly improves the coating hardness and toughness.

3 the development of superhard cutting tool material superhard material refers to diamond and cubic boron nitride (CBN), its hardness is several times higher than the other tool materials, diamond is the hardest substance in nature, CBN hardness is second only to diamond. In recent years, the rapid development of superhard cutting tool materials. Diamond cutting tool material is divided into five types: natural diamond (N D), synthetic polycrystalline diamond compact (P C D C/C), diamond film coated tools (CD), diamond thick film cutting tools (FCD) and artificial polycrystalline diamond (P C D). N D crystalline anisotropy, on the use of the knife grinding must choose appropriate direction; Synthetic diamond isotropic, its hardness is lower than N D, but the strength and toughness is better than ND. Diamond tool to effectively processing of non-ferrous metal materials and nonmetal materials. Non-ferrous metals such as copper, tungsten and its alloys, ceramics, hard alloy and all kinds of fibers and particles strengthen composite materials, plastics, rubber, graphite, glass and wood, etc., but avoid diamond cutting steel and other elements of iron group. Cubic boron nitride (CBN) cutting tool materials with high hardness and red hardness, is high speed finish machining or finish machining of hardened steel, chilled cast iron, the ideal of high temperature alloy cutting tool material, due to the CBN cutting tool machining high hardness when parts can obtain good surface roughness, so the C B N tool cutting hardened steel can realize "to cut grinding".

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Big size tungsten carbide substrate producer from China.

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China superhard material and the international main gap with the target
High quality large-scale composite film, from the master of information, high quality large diameter compound gap is still very large. G.E companies in the United States can use both sides of the 2 ~ 25000 tons of jacking machine production of large diamond compact ф 100 mm, the quality is stable. But the real use of diamond compact also most just ф (60 ~ 70) mm, but also slowly with six sides top press of China. And most of the domestic application of composite piece in ф (30-35) mm, enterprise development to ф 45 mm, even colleges and universities is the only developed to ф (60-65) mm. , of course, now production has been basically can meet the market demand, in particular, some oil drilling, coal excavating, etc., because in general need to use only ф below 20 mm, and most is only 13 mm ф. But if use requirement in some special cases need big composite films, will feel overwhelmed.

Why large compact become the research problem? Mainly because of its central area and peripheral area due to the synthesis of cavity, pressure gradient, temperature gradient caused by the uneven and so on the design of cavity leads to many problems.

Six star hardmetal to build a new factory specializing in the production of large size carbide composite matrix, has achieved significant progress, its maximum size of the production to have up to 65 mm or even more, to fill the domestic blank.

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The development direction of carbide cutting tool materials and application at present.

The development direction of cutting tool materials and application at present, in the field of aircraft manufacturing, high speed steel cutting tools account for about 60% of the total amount of all kinds of cutting tool always, carbide cutting tools account for about 35% of the total amount of cutting tool, superhard cutting tools (cubic boron nitride, diamond) accounted for less than 5% total all the cutting tool and the future with the airline new materials constantly emerging, the increase of hard cutting, dry cutting application, carbide cutting tools, coated tools, ceramic cutting tool, cubic boron nitride cutting tool and the proportion of polycrystalline diamond cutting tools will be greatly increased.

1 the development of cemented carbide materials in order to meet the rapid development of high speed cutting technology, various is given priority to with cemented carbide cutting tool material performance has been improving, fine particles, and the development of ultra-fine grain cemented carbide and coating technology in the application of carbide cutting tools pronouncedly improved strength and toughness of cemented carbide material, use it to make the overall alloy cutting tool is gradually replaced traditional HSS cutting tools, to improve cutting speed and processing efficiency by several times, laid the important foundation for the application of high speed cutting. Solid carbide also have been applied in some complicated forming cutter and meet the demand of the diversity of product processing. At present domestic gesac measures are useful in xiam special alloy co., LTD., zhuzhou diamond hard cutting tool co., LTD., siping usain bolt process equipment co., LTD., and shaanxi aeronautic carbide tool company can offer carbide cutting tools for the airline industry, its product performance is close to the world's advanced level. Carbide cutting tool materials in the 21st century should focus on development in two aspects: one is fine grains to nanoscale microcrystalline level. Carbide grain size is smaller, the higher the hardness of cemented carbide its wear resistance is better, the higher the toughness and stiffness, so as to expand the scope of its application; The second is using new technology and new technology development of new carbide carbide inner performance and quality.

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Carbide wear parts superior performance.

Carbide superior performance, thus is widely applied in industry. Good abrasion resistance and high hardness, making it suitable for making wear parts of high temperature resistant, friction, corrosion, mechanical parts and wire drawing die, etc. In recent years, in a variety of industrial applications, the best choice of the carbide replace steel.

Small to refill pen, big to stamping bed, drawing die, or steel industry in rolling mill, the wearing parts can use cemented carbide production. Most of the cemented carbide wear-resistant parts and drill tool is made from tungsten cobalt directly. Fine particles and ultrafine particles of cemented carbide wear-resistant parts, and cutting iron, non-ferrous metal, wood cutting tool is becoming more and more important.
The first kind of submicron cemented carbide is listed in the 1970 s, people realized that the smaller the particle size of tungsten carbide, tungsten carbide hardness and abrasion resistance is better. Since then, the microscopic structure of cemented carbide is becoming more and more delicate.
Hard alloy of different grades, carbide blank and wear-resistant parts of applications:

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Mechanical seal

On pump, compressor and blender, tungsten carbide seal ring is used as mechanical seal face. At the same time, the carbide in the refinery and petrochemical plant, fertilizer complete sets of equipment and has been widely used in pharmaceutical production industry.
particles

In order to meet the requirements of metal wire drawing industry, we manufacture tungsten carbide, tungsten carbide bar and wire drawing tube. High hardness and toughness to make this kind of product can withstand high temperature and high pressure. Using superior wear resistance of wear parts can produce the ideal product quality, surface treatment and size precision, at the same time can also extend the service life of the product.
Metal ring

Cemented carbide wear-resistant parts in spinning and weaving industry, especially the application of jute weaving industry reflects on the metal ring. This is to prevent the vibration of the jute yarn rotates at high speed and displacement, and to make the machine run smoothly.

Tool market expansion to accelerate the development of cemented carbide mould industry

The rapid development of technology makes the speed of a lot of industry upgrading more and more frequent, the cutting tool market also cannot avoid this situation, now the single function of simple cutting tool is gradually replaced by the multi-function of cutting tool. In development of the future, the user on the research and development of cutting tool has been put forward more requirements, no longer just limited to the cutting tool material and coating technology, but rather to cutting tool production technology have stricter requirements.

In terms of technical updates, carbide cutting tools gradually replace HSS cutting tools, especially the circular knives. Coated tools used more and more common in Europe, increasing the market share with new pattern cutting tool in high speed machining. Dynamic manufacturers. From the point of cutting tool manufacturers cooperation way, market will appear a lot of big companies in the field of high and new combination.

The current domestic market is a big demand for high-grade mold, according to the forecast, "twelfth five-year" period, smooth mold market overall trend upward, but it requires the domestic mold must be in terms of quality, delivery time, meet the needs of users. Moreover, household appliances, plastic products, automobile industry demand for mold is the largest. International markets, in recent years, the artificial cost increase of industrial developed countries, its shift towards developing countries, especially in southeast Asia countries. The home is given priority to with high production, precision mould, mold rely on imports to solve of artificial labor inputs.

Therefore, the medium mould international market potential is very huge. As long as the quality of the homebred mould can be improved, and the date of delivery guarantee, mold export prospects are very optimistic. In addition, the demand of international market standard. At present, only a small amount of export in our country.

In the new wave of world economic integration, global manufacturing to accelerate the shift towards the Chinese mainland has been the trend of The Times, China will gradually develop into a world-class manufacturing base. Obvious advantages especially the pearl river delta region in guangdong, mold production center in the world within ten years development.

Although China is mold production country, but a lot of mold is still dependent on imports, with large, precision, complex, long-life mold majority, in recent years, total imports has amounted to $1 billion. From the Angle of the import less, hardware tool market should continue to increase the proportion of high-grade mold, expanding domestic demand.

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Coal cutter tooth using should all know.

Carbide Chisel Tungsten Carbide Tips Coal cutter tooth using should all know, it is one of the biggest problems is too vulnerable to damage, wear more serious, so, our manufacturer is the most attention should be to fix the problem of the coal, not only should take preventive measures, but also to encounter problems after the repair work. Coal cutter tooth is the wearing parts used in the process of coal mining, the tooth body wear is one of the main failure forms, to welding repair of wear and tear of the tooth, can improve the service life of the cutter tooth, create objective economic benefits. Prolong the service life of equipment, it will bring us more economic benefits!

Coal winning machine(Carbide Buttons Manufacturers Tungsten Carbide Button Rock Auger Teeth )working environment is very bad, mixed with a large number of impurities such as coal gangue in coal seam, the cutting tooth in high impact and high wear and high stress conditions, the shoulders are big bending moment and shear force, so the coal cutter tooth the tooth body should have a certain hardness, abrasion resistance and toughness. Once we pick by the wear, we should take corresponding measures.

Welding repair of surfacing process was conducted in the abrasion of the tooth body surface after machining, and then to heat treatment to obtain the finished product. 42 crmo steel is a commonly used material, coal cutter tooth the tooth body belongs to the carbon in the conditioning heat resistant steel. Welding process:
1, cleaning before welding, clean coal cutter tooth welding surface impurities such as oil, rust, oil by oxyacetylene flame cleaning, rust with Angle grinder grinding, the surface of fatigue crack with Angle grinder, completely exposed metallic luster.
2, preheating before welding, using oxyacetylene flame swing uniform heating, using infrared thermometer temperature 250 ~ 250 ℃, and keep the interpass temperature about 300 ℃. 850 ℃ quenching heat treatment after welding, use and then go to 500 ~ 600 ℃ tempering treatment, in achieving a certain hardness at the same time to obtain has good wear resistance of bainitic tempered martensite + tempering complex organization. Heat treatment after welding is the main channel of steel to obtain comprehensive performance, material under the condition of its kind, with higher hardness, wear resistance improved significantly.

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