Foundry Industry's Access System - Medical Cushion - Inflatable Cervical Collar Manufacturer

Foundry industry is the basis for the manufacturing industry

, the development of the industry can not do without casting. From cars, machine tools, agricultural machinery, metallurgy, mining equipment, to the aviation, aerospace, defense industry, as well as building hardware, household appliances and other industries of life every year need a lot of casting.

In all industrialized countries, casting is the backbone of manufacturing industry, the United States, for example, since 1980, casting industry in the manufacturing of the sort, when he ranked among the top four, ranking as the first 8 hours after the bit, short, the 10 manufacturing industries. Foundry industry is involved in metallurgy, chemical industry, machinery and other professional and comprehensive industry, on its principal clients, the foundry industry's first mechanical process, but the characteristics of its production is entirely different from the general machinery manufacturing, each one casting plants are equipped with metal smelting and Industry, in fact, relatively close to the metallurgical industry.

Therefore, the foundry industry as the metallurgical industry, just as resource consumption-intensive industries, consumption of large quantities of energy every year and various of raw materials, with this, but also a large number of exhaust emissions, dust, waste sand, sludge and other waste material. Meanwhile, the foundry industry is also poor working conditions, security risks and more frequent work-related accidents and occupational diseases industry.

Industrial countries of the casting company, in order to improve the casting quality, saving energy, reducing waste emissions, in improving the production process, reducing energy consumption, the continuous commitment of both financial and technical strength, research and exploration, for environmental protection and occupational safety health investment is considerable.

1, the current basic situation of China's foundry industry

Since reform and opening, sustained, high-speed development, the development of China's foundry industry provides an unprecedented good opportunity, casting rapid development the world's spotlight. Since 2000, China's total output of all kinds of casting the third consecutive seven-year Wenju the first countries in the world. Various types of castings in 2006 output reached 28.09 million tons, accounting for 30% of the world's casting production around the U.S., Japan, Germany, 3 casting production of major industrial countries combined.

However, in a "good" situation, but also highlights a number of must pay special attention.

The past 20 years, the rapid development of China's manufacturing sector, the rapidly growing demand for castings, due to market demand, various countries are Dajian foundry business has really surging, "to make its fortune, engaged in foundry!" Are rampant. In some places, a town within a short time built dozens, even hundreds of foundries. According to incomplete statistics, at present all kinds of casting our existing business is about 30000 over the world, statistics released in 35 countries and regions, combined foundry business much more.

Casting industry is one of the industries more energy-intensive economy, accounting for the total energy machine-building industry for 25 ~ 30%. Foundry industry is energy-hungry, but also big polluters. According to statistics, China's production of 1t of each qualified castings, dust emission of approximately 50kg, exhaust 1000 ~ 2000m3, waste sand 1.3 ~ 1.5t, sludge 300kg. The foundry industry in 2006 is approximately the total emissions of pollutants: dust, 1.4 million t, emission 280 ~ 56 billion m3, of waste sand 3640 ~ 42 million t, residue 8.4 million t. Developed countries to produce 1t of qualified casting waste emission is less than our 1 / 10, its foundry for the casting plant's total investment in environmental protection investment in equipment 20 to 30%, while China accounts for only 5 ~ 8%, a considerable number of enterprises or even lower, less than 3%.

China's annual output of a 22000 t, casting foundry, mainly gray iron engine complex castings, is the casting makers, in addition to technical equipment and abroad, is also slightly outside the very old, namely, high-pressure automatic molding line, modern methods and dual-core system United melting process. Table 1 shows the foundry in 1989 and 2005, energy consumption comparison. 15 years to reduce energy consumption by nearly 46% of phenomenal. However, take this factory in 2005 in Germany the same data and the level of production and equipment, John Deere foundry in 1989 compared with the data (see Table 2), can see that our consumption of tons of castings is their 204%, or twice as high more.

Due to different degrees of mechanization, tons of castings a great difference between energy consumption, the higher the degree of mechanization, tons of castings, the higher energy consumption, which in the example listed earlier clearly seen. The cupola of iron coke consumption, while for the iron foundry, has obvious comparability. China's iron foundry coke consumption per ton of castings in the 171-313, and that means the plants will have a great difference between the energy consumption.

Table 3 lists the German iron foundry coke consumption of only 115 ~ 130kg / t. Of domestic for foreign 148-270 percent. Of course, some enterprises in the development of production while also working to improve technology, improve product quality, energy saving, emission reduction and to improve the operating conditions and other aspects of the work, but few such enterprises.

For these historical reasons, although China's current cast is a well-deserved producing countries, but in terms of the overall level of the industry, as compared with other industrial countries, the gap is still quite large, mainly in the following areas:

A large number of foundry enterprises do not have the economic scale of production;

Production process, low levels of equipment;

Labor productivity is low;

Overall, the technological content of products is low, casting the selling price of similar products in the international market price is only 1 / 2 ~ 1 / 3;

The average energy consumption per ton of casting industry in developed countries is about 2 ~ 3 times;

A considerable number of foundry enterprises, metal smelting equipment, emissions of harmful substances exceeded;

A considerable number of foundry enterprises, production site operating conditions do not comply with occupational health and safety regulations.

Currently, casting manufacturers engaged in too much, the average annual production of each enterprise is not only far lower than other industrial countries, but lower than our neighbor, India.

Dissemination of statistics in some of the major casting producing countries in 2005, production of various types of casting, production and the number of enterprises, with an average annual production of each enterprise in table 4.

Second, the establishment of "access system" the necessity and urgency of

In accordance with Economic and Social Development 10th Five-Year Plan requirements, our country is to accelerate the transformation of economic growth mode, effectively taking a new road to industrialization, adhere to conservation development, clean development, security development, and in order to achieve sustainable development.

Today, energy conservation has become a worldwide one of the issues, countries on energy issues are given much attention, rational use of energy to reduce energy consumption are listed as a major issue of economic development. Energy conservation is through technological progress, the rational use of, scientific management and rationalization of the economic structure so as to minimize the energy consumption to achieve maximum economic benefits.

China's current energy use is much lower than developed countries, China is still very weak basis for energy conservation, energy conservation potential is great. Therefore, make great efforts to energy saving and environmental protection, China's foundry industry, a long-term strategic task, first designed in the factory should pay full attention to energy saving and environmental protection.

By the end of 2006 Central Economic Work Conference was held from a strategic point of view put forward economic development in China in the future from the "fast and healthy" to "good and fast." Seemingly simple change of the order of words, but it reflects the fourth-generation collective leadership with a deep understanding of China's national conditions as well as China's future development direction accurately.

The so-called "good" is to emphasize economic and social development of the quality and efficiency of economic growth pattern to minimize the cost of economic development. From the resource utilization and environmental protection point of view, is to adjust the economic structure, and reducing resource usage and to improve recycling use of resources, the implementation of clean production, enhance the sustainability of economic development.

At present, China's foundry industry is already very high annual casting output, but also a large number of underused capacity. Under such conditions, we must change the development model as quickly as possible to implement the principle of sustainable development, not only to strictly limit the growth of low-capacity blind, but also to phase out the existing backward production capacity.

To this end, it is recommended in the National Development and Reform Commission, Industry Division under the direction of development of China Foundry Association instructed foundry industry "access system", proposed by the current application of the "standard" as "access" and then by the State Quality and Technical Supervision Administration, the National Development and Reform Commission issued a document to inform the relevant government departments around the concrete implementation.

by: gaga

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