Korean customers come to visit our company

February 2014, Korean customers come to our factory to visit bauxite aggregate production (Bauxite aggregate is Particulate material which have been crushed, screened, without iron and other processes, typically specifications (mm) :0-1 ,1-3 ,3-5 ,5-8 ,8-15 ,15-50 ,0-5 ,0-50, also according to customer requirements specifications).

Relevant staff of the state of International Trade and Korean customers for the exchange and organized production plant visit, the ROK expressed satisfaction with my company's bauxite aggregate.

Korean customers a special trip to visit my company, aims to increase understanding of our products and production technology, hoping to take this opportunity to establish a formal partnership with the company to lay a solid foundation for future cooperation. The two sides had in-depth communication and cooperation agreement, the next step to determine the time signed an agreement of cooperation. South Korea expressed the hope long-term cooperation with our company, and hope that the cooperation can be extended to more refractory products.

Luoyang Yilong Refractory Co., Ltd. is a professional manufacturer which integrates designing, producing and servicing of the refractory material used for steel-making electric furnace,

steel ladle and middle ladle inmetallurgical industry. The main products of our company are Magnesia carbon brick, Alumina-magnesia-carbon brick, Magnesia-aluminum-carbon brick, Aluminum-magnesia spinel brick, Nozzle brick, Nozzle brick cup, Porous plug together with various unshaped refractory materials. Our products have been exported to many countries including Republic of Korea ,Kazakhstan, Thailand, Vietnam, Turkey, Ethiopia, Iran, Malaysia, Georgia, Angola, Ghana, Laos, North Korea, Nigeria, Pakistan, Iraq, Indonesia, Libya, Saudi Arabia and UAE (United Arab Emirates),etc.

Graphite features

Thermal and electrical conductivity of the graphite refractory is very high, four times higher conductivity than stainless steel,

two times higher than carbon steel, 100 times higher than non-metallic. Its thermal resistance, not more than steel, iron, lead, metal materials, and reduce the thermal conductivity increases with temperature, and this type of metal materials in general, at high temperatures, the graphite tends to even the adiabatic state. Therefore, under conditions of ultra-high temperature insulation properties of the graphite is very reliable.

Graphite has good lubricity and plasticity, graphite friction coefficient is less than 0.1, can be expanded into a breathable translucent graphite flakes in a large high-strength graphite hardness, as well as diamond tools are difficult to process.

Advanced refractory and coatings are widely used in metallurgical industry, steel core light industry, electrical industry, carbon brush, electrode in battery industry, fertilizer industry catalyst. Graphite after processing, can produce graphite, graphite paper, graphite sealing materials and other graphite products, has become an important non-metallic mineral raw materials in various industrial sectors.

Sustainable development of refractories industry needs "green"

Currently, Europe, Japan, the United States and other countries and regions due to mandatory government has basically no chromium refractories, refractory materials using green has become an inevitable trend. Future expansion of the cement kiln refractories can benefit from a similar promotion of energy saving policies in cement kilns, the enterprise Refractories Co., Ltd., Luoyang yilong refractory developed spinel, magnesium, iron and magnesium spinel Fe-Al spinel brick in a large new dry-process cement kilns firing zone and transition back to use, meet or exceed the life of magnesia-chrome brick,

magnesite-chrome brick can replace significantly reduces the chromium contamination.

In today's increasingly scarce national resources, new green and energy saving has become refractory development purposes. For refractory industry, should be prepared to produce raw materials, construction, application and after treatment with various aspects of scientific and systematic consideration, avoid thinking and look beyond the surface and one point or the other. Should think big, start small, face reality, be focused, strongly advocated the user side, the production side, the development side, co-operation and coordinated the design side. As a business, we should strengthen co-operation with research institutions and user units, increase research cooperation efforts in the green refractory technology to achieve new breakthroughs.

Strengthen energy conservation, development of green, low-carbon refractory products, is the fundamental requirement of a global green economy strategy for the refractory industry. Refractory industry to further promote technological innovation, product structure adjustment and application of technology to enhance, develop long life energy-saving, environmentally-friendly new green refractory products, refractory industry has become a major trend in the development of the current.

Technical characteristics of the vacuum fiberboard

Low thermal conductivity, heat capacity; excellent thermal stability and thermal shock resistance; high strength and good toughness.

Application:

1. Industrial furnace wall lining, masonry insulation layer;
2. High-temperature furnace kiln liner, kiln cars, door tailgate, kiln furnace partition plate;
3. High-temperature, heat equipment insulation, thermal insulation;
4. Aerospace, shipbuilding insulation, fire protection, sound insulation.

Working temperature:

Depending on the type of heat source, atmosphere and material conditions.

Production

Various aluminum silicate fiber, using the corresponding ordinary type, standard, high purity type, containing zirconium silicon fiber cotton as raw material,

using vacuum filtration processes or dried into the legal system.

In addition to a variety of aluminum silicate fiber corresponding bulk silicate fiber cotton excellent performance, hard texture, excellent toughness and strength, excellent fire resistance, thermal insulation properties. Heating is not expansive, light weight, convenient construction, can be cut bent and is ideal for energy-saving materials furnaces, heat pipes and other equipment.

Six bonding methods of refractory adhesive

1. Hydration combined - agent reacts with water hydration hydration products generated at room temperature by means of a combination combined.
   
2. Chemical binding - binding means between the agent and curing agent, binding agent and the refractory, or chemical reaction at room temperature or with heating to produce a chemical reaction which generates a compound having a binding agent binding effect.
3. Polymeric binding - by means of a catalyst or a cross linking agent, the bonding agent is a poly condensation to form a network-like structure to produce bonding strength.
4. Ceramic bond - means combining low-temperature sintering, which can be added in bulk refractory to reduce the sintering temperature refractory additives or metal powders, in order to greatly reduce the temperature of the liquid appeared to promote the solid-liquid reaction at low temperatures combine to produce low-temperature sintering.
5. Cohere - rely on adding coagulant to make particles (colloidal particles) combine to produce condensation occurs
   
6. Adhesive binding - is one of the following means of several physical effects arising from combining.

• Physical adsorption: intermolecular interactions depend - van der Waals force binding generated;
• Diffusion: the role of the thermal motion of molecules of the substance, the molecules are bonded with the adhesive composition of the diffusion interaction occurs forming a diffusion layer, thereby forming a strong bond;
• Electrostatic interactions: the interface is bonded with the adhesive composition of the existence of the electric double layer by electrostatic forces arising from the electric double layer combination.

Refractories industry accessing standards makes new progress

According to media reports, commissioned by the Ministry of Industry, China Association recently held refractories refractories industry access research forum, from China Association of Refractories, China mold material association representing public letter to the Office of Henan Province, and 50 large enterprises to explore developed on the refractory ore mining, industry access standards refractory materials, refractory products area.

Insiders said refractories currently facing overcapacity, industry access standards and promoting industry consolidation, improve resource utilization, and related listed companies will benefit.

In 2013, due to the decrease in the volume of orders, sales decline, cement, glass refractories enterprises compete to lower prices, payment defaults, resulting in refractories business funding constraints, some companies had to stop. China Refractory Industry Association on 52 producers of survey results show that in 2012 representing a decrease of refractories sales revenue of 4.29%, representing a decrease of 21.40 percent profit, trade receivables increased by 15.34 percent year on year.

Insiders said that the presence of resource exploitation of non-refractory industry standardization, waste and serious problem, especially blind investment and redundant construction led to the refractory industry from "structural surplus" to "full excess." And because the steel, cement, glass and other downstream industries refractory same overcapacity, profits have fallen sharply and other issues, the problem of refractory industry becomes more serious.

June 28, "to promote the progress of work in Henan refractories industry technical forum" in the new password, the meeting around the promotion of technical progress refractory industry expanded, the experts reached a basic views on the refractory industry standard enterprise 7 of 22 kinds refractory materials, 29 kinds of refractory products comprehensive energy consumption per unit of product limits and 34 kinds of refractory raw materials, product quality and technical standards were defined.

Difference between corundum and high-alumina

1. The main ingredient of 90 corundum brick is corundum and a small amount of soil in Suzhou, mullite.
2. The main ingredient of alumina bricks is high bauxite, corundum mullite and some sand.
3. The difference between them lies in how much alumina content, alumina content higher than 48% of alumino silicate refractory products 
4. Al2O3 content higher than 90%, referred corundum brick.
5. Hardness can tell the difference. To cut with a hacksaw, corundum is the hardest, followed by high aluminum and most soft clay qualitative