博文

目前显示的是 五月, 2016的博文

Identification of wear-resisting ceramics

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1, the preface Wear-resisting ceramics with its strong abrasion resistance, excellent performance, has become one of the most optimal wear-resisting material, get a wide range of industrial enterprises, especially welcome by cement production enterprise.But, undeniably, wear-resisting ceramics industry disorderly competition, the wear-resisting ceramics had a few problems in the process of popularization and application, these problems make people on the understanding of the  wear-resisting ceramics  produced some misunderstanding, caused the adverse effect for the promotion of wear-resisting ceramics. This article embarks from the research on ceramic wear mechanisms, misunderstanding of these one by one, discusses and puts forward the key factors influencing the wear-resisting ceramics using effect is the combination of the quality of the ceramics, ceramic and equipment method, selection of viscose and construction process control.Hope of cement enterprises and is co...

Australian coal exports to Thailand four times higher

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New figures show that the demand for high-quality Australian coal continues to grow throughout South East Asia with exports to Thailand four times higher in April 2016 compared to April 2015. Australian coal exports to Thailand grew from 142,821 metric tonnes (mt) in April 2015 to 556,487 mt in April 2016, according to Platts. Further, from the period January to April, Australian coal exports to Thailand rose 20 per cent to 1.37 mt year on year. The figures demonstrate that developing nations in South East Asia require high quality coal to meet increased electricity demand, powered by the growing urbanization of the population, Greg Evans, executive director of the Coal, Minerals Council of Australia said in a statement. There are around 361 million people in the South East Asian region that have no electricity according to the International Energy Agency (IEA) and Australian coal exports are perfectly positioned to help play a central role in helping reduce energy pov...

Alumina wear-resistant ceramic forming method

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(1) dry pressing molding Alumina  wear resistant ceramic  dry pressing molding technology is limited to simple shape, wall thickness more than 1 mm, the ratio of length to diameter is not more than four items.A single axial or two-way molding process.Pressure on the mechanical press size change because of how much powder filling, easily lead to size after sintering shrinkage difference, affect the quality of the product, therefore, in the process of dry pressing fission particle uniform distribution is very important for the mold filling. (2) slip casting Injection molding is the earliest use of alumina wear resistant ceramic molding method.Injection molding is the key to the preparation of alumina slurry.Usually with water as solvent media, coupled with glue and adhesive solution, sufficient exhaust after grinding, then pour it into the plaster mould.Alumina  wear resistant ceramic  slurry will need to add organic additives to make slurry particle surfa...

Australia's mining project pipeline dwarfs other countries

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A new report by BMI Research forecasts the global mining project pipeline will continue to narrow in 2016 and 2017 as low metals and mineral prices force miners into further cost cuts and lower capital spending. ​ However, a handful of countries are set to continue to make significant investment into both brownfield and greenfield projects, bolstered by a combination of low production costs, high-grade reserves and favourable regulations says BMI. None more so than Australia, where significant initial capex projects nearly outnumber the next ten countries on the list. BMI warns however that a majority of the projects in the pipeline are in the announced/feasibility study stage, and a proportion are not be expected to come to fruition over the research forecast period of 2016–2020. During current economic conddition.mining companies no matter continue to narrow or coninue to invest . reducing production cost is major duty for them .  wear resistant ceramic  lin...

Alumina wear resistant ceramic firing technology

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Will granular ceramic body densification and formation of solid material called sintering technology method.Sintering between particles in the body and the hollow out, will be a small amount of gas and organic impurities, between the particle growth combined with each other, to form a new substance.Burning heating device is the most widely used to use the electric stove.In addition to the normal pressure sintering i.e. pressureless sintering, hot-pressing sintering, hot isostatic pressing sintering, etc.Continuous hot-pressing sintering, although increased production, equipment and mould cost is too high, moreover due to axial heat, the length of products is limited.Hot isostatic pressing sintering with high temperature and high pressure gas pressure transmission medium, has all the advantages of uniform heat, very suitable for sintering of complicated shape products.Due to the uniform structure, material performance 30 ~ 50% higher than that of cold press sintering.10 ~ 15% higher ...

BHP to boost copper output, lower costs at vast Olympic Dam

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World’s largest miner BHP Billiton (ASX, NYSE:BHP) (LON:BLT) has made a bold bet on copper and it’s starting by finding a way to boost output for the red metal from its Olympic Dam, Australia’s biggest underground mine, even before a proposed and long-awaited mega-expansion of the operation takes place. While the company will take another three years before deciding if heap leaching technology will ultimately allow a big expansion of the mine, the fifth largest copper deposit in the world, and the No.1 uranium deposit, BHP wants to up output for the industrial metal from the mine by 40% over the next year. Reducing maintenance and replacement cost caused by equipment wear damage necessarites mining companies to use abrasion resistant materials .   wear resistant ceramic   is cost effective abrasion materials .Chemshun Ceramics mainly manufacture high alumina  wear ceramic liner   website: www.chemshun.com 

Boom in private debt financing for mining

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​A study of private capital in the resources sector by industry tracker Preqin finds significant growth since the global financial crisis in the debt fundraising market with 54 funds closed since 2010 raising more than $29bn. According to Preqin which tracks 1,520 funds active in natural resources investment around the world, at the moment there are 32 unlisted natural resources funds in the market that will invest in debt. Collectively, these funds are targeting an aggregate $23.2bn. This figure includes 19 funds focused on making debt investments in energy assets including oil, gas, coal and renewables, targeting $14.5bn. Investments will primarily be funnelled into in North America. The authors of the report say that's because the region has a longer tradition of private ownership of natural resources assets than many other areas. High wear damage for equipment is serious inustry problem in mining .  wear resisatnt ceramic   application is ideal choice for rudu...

Alumina wear resistant ceramic molding method(2)

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Molding methods: aluminium oxide  wear resistant ceramics  have dry, grouting pressure, extrusion molding method, cold isostatic pressing, injection, stretch film, pressure and hot isostatic pressing molding, and other methods.In recent years at home and abroad and develop filter shaping, direct injection molding of solidification and gel injection molding, centrifugal injection molding molding technology with solid free molding method.Products of different shape, size, complicated shape and precision of the products need different molding methods. Pick the common molding is introduced: 1: slip casting, grouting is aluminium oxide  wear resistant ceramics  using the earliest molding method.Because use gypsum mold, low cost and easy to forming large size and complex shape parts.Injection molding is the key to the preparation of alumina slurry.Usually with water as the solvent medium, add the glue and adhesive solution, sufficient exhaust after grinding, then p...

Aluminum oxide wear resistant ceramics production process(1)

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Alumina ceramic at present can be divided into high purity type and ordinary type two kinds.Wearproof plate type high purity alumina ceramic Al2O3 content in more than 99.9% of the ceramic material, due to the sintering temperature up to 1650-1990 ℃, the transmission wavelength of 1~ 6 microns, usually made from molten glass to replace platinum crucible: using alkali metal corrosion resistance is used as the transmission of light and sodium lamp tube;In the electronic industry can be used as a substrate integrated with high-frequency insulation.Ordinary aluminum oxide  wear resistant ceramics  department according to the Al2O3 content is divided into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain, and other varieties, sometimes Al2O3 content in 80% or 75% are classified as ordinary aluminum oxide  wear resistant ceramics  series.99 alumina ceramic materials used in production, resistant to high temperature crucible furnace pipe and special wear-resistant ma...

Rio Tinto makes management changes

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Rio Tinto has appointed Stephen McIntosh as the acting Group executive, Technology & Innovation to succeed Greg Lilleyman, who will leave the company after 25 years of service. Stephen has been with Rio Tinto for almost 30 years working on projects in more than 45 countries spanning the A-Z of minerals and metals. Most recently, he was head of Exploration, leading a 450-strong global team of employees operating in 20 countries. Stephen McIntosh. acting Group executive, Technology & Innovation Prior to this, Stephen led Rio Tinto’s Project Generation Group for six years and transformed its activities to build a world-leading team of commodity, technical and ore body knowledge experts Rio Tinto is a famous mining company .with large requirement of  wear resisatnt ceramic  liners . chemshun ceramics manufacturer mainly offer wear protection solution with  wear ceramic liner  . welcome to contact by office@chemshun.com 

BHP's Spence copper mine in Chile hit by fresh strike

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Workers at BHP Billiton's (ASX, NYSE: BHP) Spence copper mine in northern Chile, the world's largest producer of the metal, have begun a 24-hour strike, a union representative said Monday, citing slow progress in labour talks The action follows two other one-day protests at the mine on May 13 and May 3, in which the union also cited minimal headway in ongoing negotiations, In April, the company laid off about 7% of its 1,060 Spence workers, following a trend among copper mines in Chile who have been squeezed by low prices and weak demand in key consumer China. Recently it is fact that mining economic is during depression.which caused various industrial problem.  wear resistant ceramic  liner is mainly used in mining industry for wear protection. chemshun ceramics manufacturer offer  wear ceramic liner   with many shapes and sizes. ideal wear resistant linings consult and supplier in China .

The progress of the application of industrial ceramics

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Pottery and porcelain (Ceramic) is one of the first to use human material, Ceramic traditional concept refers to all inorganic non-metallic minerals such as clay as raw material, through crushing, shaping, calcining process made of a variety of products.With the development of production and the progress of science and technology, although industrial ceramic material production technology and production process basically still follow the traditional ceramic production technology, but already is not only natural mineral materials, and after purification of artificial or synthetic, component matching range has expanded to the whole range of inorganic non-metallic materials.Therefore, the meaning of industrial ceramics can be defined as inorganic non-metallic solid material made of ceramic production methods and products known. Industrial Ceramics, Industrial Ceramics) is associated with the development of modern Industrial technology and appear all sorts of new type ceramic genera...

Aussie mines too costly to shut

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Major miners are trying to avoid hundreds of millions of dollars in closure costs by selling off pits, as cash is tight due to a prolonged commodities price slump, but the crippling cost of environmental rehabilitation makes it tough to seal deals. In a cautionary tale, China's MMG Ltd had to hike its estimate of closure provisions more than 60 percent to $378 million for Australia's largest open-cut zinc mine, Century, just months before digging its final ton last year as the reality of what would be involved became clearer. Wear resistant ceramic liner as mining upper stream products ,used for wear protection in the surface of equipment like chute,hopper,bunker,cyclone, elbow pipeline etc. wear ceramic liner  can be installed by cement,weldling or bolt .highly fit for industry minings.Chemshun ceramics manufacturer contact way by : office@chemshun.com 

About the wear-resisting ceramic storage and installation of the pipe elbow

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Wear resistant ceramic pipe elbow of  wear resisting ceramics  is AL2O3 as the main raw material, with rare metal oxide as the flux, through one thousand seven hundred baidu high temperature roasting of special alumina ceramic, then respectively with special rubber and high strength of organic and inorganic binder paste on the pipe wall.Has good wear resistance, corrosion resistance, high temperature resistant performance is good, low engineering cost, long life, light weight, convenient transportation and installation, are widely used in cement, steel, chemicals, paint, paper making, medicine, and thermal power plant and other industries.  The storage of wear resistant ceramic pipe bend: 1, long time storage wear-resistant ceramic pipe elbow, should be checked regularly, generally outside the processing surface must be kept clean, remove dirt and rust removal.  2,  wear resistant ceramic  pipe elbow should be neatly stored in the workshop drafty d...

South African miners to pay 67% of acid drainage clean-up costs

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South Africa is planning to charge mining companies about 67% of the cost for cleaning up toxic water pollution caused by their century-long operations in Gauteng, the country’s richest province that includes Johannesburg. The Water Ministry said Wednesday the long-term plan to treat acid mine drainage will cost as much as 12 billion rand ($760 million) and be implemented by February 2020. The authority added that users would pay for a third of the cost, with the rest coming from the government, which in turn will collect money from mining companies through an environmental levy. South Africa is famose in mining ,which also have large demand for mining relative products ,  Wear resistant ceramic   is much popular for mining equipment wear protection . chemshun ceramic manufacturer professionally produce industry  wear ceramic liner   . contact way by : office@chemshun.com  

The characteristics of the wear resistant ceramic composite tube

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1. Overview of  wear resistant ceramic  composite tube Ceramic pipe is made of the self-propagating high temperature synthesis, centrifugation.Is put seamless pipe inside the pipe die of centrifuge, add red iron oxide and aluminum powder mixture in the composite tube, the mixture in a chemical called thermit.Centrifuge pipe die rotate after reaching a certain velocity, lit by a Mars thermit, thermit immediately their combustion, the combustion wave spread quickly, in the spread of violent chemical reaction, and gives off a lot of calories.This heat such as under the adiabatic condition, adiabatic temperature can reach 3860 k and 3600 k, it makes the composite tube original material and the products after the reaction, is the melting point is 2045 ℃ of alumina (commonly known as corundum) have all become molten. 2. The application of wear resistant ceramic composite tube Wear resistant ceramic pipe with excellent abrasion resistance, heat resistance, mechanical and the...

Mongolia to pay $70 million owed to Canada’s Khan Resources

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The government of Mongolia is ready to pay $70 million to Canada’s Khan Resources (TSX:KRI) for revoking a uranium mining licence, putting an end to seven years of negotiations and legal battles that scared investors away from the country once considered a top mining destination. Speaking under condition of anonymity, a government source told Reuters that Prime Minister Chimed Saikhanbileg will be taking further measures soon to improve Mongolia’s relationships and tarnished reputation. The move comes just weeks after the Asian country launched a new program aimed to attract a fresh wave of mining exploration. It also comes on the heels of Rio Tinto’s decision to resume work on a $5.3 billion expansion of the Oyu Tolgoi copper mine, following a three-year delay due to disputes with the Mongolian government. Chemshun Ceramics manufacturer supply various of  wear resistant ceramic linings  for different impact grade . Alumina mosaics mat for light duty range. r...

The status quo of wear-resisting ceramics is introduced

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Wear-resisting ceramics with its strong abrasion resistance, excellent performance, has become one of the most optimal wear-resisting material, get a wide range of industrial enterprises, especially welcome by cement production enterprise.But, undeniably, wear-resisting ceramics industry disorderly competition, the  wear resistant ceramics  had a few problems in the process of popularization and application, these problems make people on the understanding of the wear-resisting ceramics produced some misunderstanding, caused the adverse effect for the promotion of wear-resisting ceramics. Misunderstanding of these one by one, discusses and puts forward the key factors influencing the wear-resisting ceramics using effect is the combination of the quality of the ceramics, ceramic and equipment method, selection of viscose and construction process control. As long as the category of  wear resistant ceramics  is very wide, theory for abrasion resistance for th...

Rio Tinto forges ahead with Simandou, the world's largest mining project

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Rio Tinto (LON, ASX:RIO), the world’s second largest mining company, is moving ahead with its massive Simandou iron ore project in Guinea by submitting feasibility studies to the country’s government. ​ The documents, which outline details around the development of both the mine and related infrastructure, are a further step toward bringing into production a deposit considered the world's biggest untapped source of iron ore. Rio Tinto as world's second largest miners must need a great quantity of  wear resistant ceramic linings  for basic mining equipment wear protection solution.  wear ceramic liner  is bettter than rubber lining in abrasion resistant properties, and is cost effective than steel materials .chemshun ceramics as industry ceramic manufacturer offer standard and engineering ceramic lining . contact mail: office@chemshun.com 

Introduction to the basic concept of engineering ceramics

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​Wear resisting ceramics  has play a strong role in various engineering, but also because of the emergence of wear-resisting ceramics, thereby reducing the loss and loss of engineering equipment, thus  wear resisting ceramics  is a kind of indispensable product engineering ceramics.What is the specific engineering ceramics concept! Engineering ceramic materials to their excellent physical and chemical properties, in aviation, aerospace, electric power, metallurgy, telecommunications, petrochemical industry, machinery and modern biological medicine and other fields has been widely used, has become the center of the development of new materials and widely attention. Engineering ceramic materials are composed of powdered raw materials under high temperature and high pressure sintering.Due to the sintering shrinkage ratio is larger, there is no guarantee that after sintering dimensional precision, and the workpiece using engineering ceramics have some piece of form, ...

Iron ore price continues to fall, the prospects are grim.

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​ Supply-demand fundamentals for iron ore appear to be moving back to balance amid steel supply concerns and after Chinese stock market regulators announced more steps to discourage speculative trading in the steelmaking commodity. Both steel and iron ore prices slumped on Friday, with iron ore ended the day 5.2% lower at $55.68 per tonne, and steel rebar and hot rolled coil down a respected 4.6% and 4%. Iron ore futures on the Dalian and Shanghai exchanges was down 13% for the week, and hot rolled coil fell 12%, bringing losses since April 21 to around 25%.   Wear resistant ceramic linings  is widely used in iron ore production equipment.which can protect iron ore machines from mechanical attack, chemical attack, corrosion.to save production cost,It is best for iron ore miners to use   wear ceramic liner   

South Africa's mining depression - wear-resisting ceramics to reduce costs

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The downturn in commodity prices is having a particularly negative effect on South Africa, especially manganese, platinum group metals, iron ore and coal. According to StatsSA's mining production figures as of the end of March, volumes have declined a staggering 18 percent from the same time a year ago. The government agency said the hardest hit commodity was manganese ore, which declined 24.3 percent, followed by platinum group metals which fell 23.7 percent. Iron ore output slid 21.4 percent, coal production dropped by 15.8 percent, and gold output also slumped, though not by much, only 7.4 percent. "This is the biggest year-on-year decline I have ever witnessed, and confirms that both commodity prices AND volumes are coming down sharply which has huge implications for the broader South African economy," said economist Mike Schussler, quoted by Mineweb. The econimic downturn seriously effect the mining employment , causing 32000jobs lose. Chemshun cer...

Wear resistant ceramic characteristics and technical indexes

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1, the wear-resisting ceramics definition and performance characteristics The definition of wear-resisting ceramics: Wear-resisting ceramics is AL2O3 as the main raw material, with rare metal oxide as the flux, through one thousand seven hundred baidu high temperature roasting of special alumina ceramic, with special rubber and high intensity of a combination of organic/inorganic adhesive products. Wear resisting ceramics  performance characteristics: A high hardness B, excellent wear resistance C light weight (only half as much as that of the steel can greatly reduce equipment load) D good adhesion strong, heat-resisting performance (wear-resisting ceramics piece of heat-resisting strong glue to stick on the inner wall of the equipment) E Wide range of application Thermal power, steel, metallurgy, machinery, coal, mining, chemical, cement, port terminals and other enterprises of coal transporting system, pulverizing system, ash discharge and dust removal syst...

The main performance characteristics of wear-resistant ceramic liner

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Wear resistant ceramic liner  is AL2O3 as the main raw material, with rare metal oxide as the flux, through one thousand seven hundred baidu high temperature roasting of special alumina ceramic, with special rubber and high intensity of a combination of organic/inorganic adhesive products. ​ Product performance characteristics 1. The hardness The determination of the Shanghai institute of ceramics, the rockwell hardness of HRA80-90, hardness is second only to diamond, far more than wear resistance of wear resistant steel and stainless steel.  2. Excellent wear resistance The determination of central south university institute of powder metallurgy,  wear resistant ceramic liner  wearability is equivalent to 266 times of manganese steel, 171.5 times of high chromium cast iron.According to our customer for more than a decade, under the same conditions, can prolong the service life of equipment more than ten times at least.  3. Light weight Its ...