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What are the Challenges and Opportunities for the machinery manufacturing industry in China?
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What are the Challenges and Opportunities for the machinery manufacturing industry in China?

Views: 12     Author: Site Editor     Publish Time: 2018-07-02      Origin: www.fuchun-casting.com

What is the present situation of the machinery manufacturing industry ?

The machinery manufacturing industry is in the basic position in the national industry, and it is also a country's pillar industry, which can affect the development of the national economy to a great extent.In the long-term economic construction, China's mechanical manufacturing industry has made remarkable achievements, but it is undeniable that it also exposes some problems in the process of development.For any country, the level of machinery manufacturing industry will have an important impact on the country's economic construction, and China is no exception.The level of China's machinery manufacturing industry can, to a certain extent, reflect the overall level of China's economic construction.Therefore, it can be no exaggeration to say that the machinery manufacturing industry provides an important guarantee for the development of the country, and it is also one of the important criteria for judging the level of national construction.


What are the reasons for the slow development of the machinery manufacturing industry ?

With the implementation of China's reform and opening policy, the joint venture has introduced advanced production equipment and production technology in developed countries as a driving force to promote the development of China's machinery manufacturing industry.But at the same time, it also caused a series of problems.From the current situation, large foreign companies have achieved their own development goals by mastering control rights in the production and construction of machinery manufacturing industry in China.Large foreign companies tend to choose companies with broad prospects for mergers and acquisitions.

The mechanical manufacturing industry in China not only faces the severe challenges brought by large foreign enterprises, but also must actively cope with the technical loopholes in its production and construction.The propaganda media often exaggerate the advantages of the import machinery in the propaganda, resulting in the emergence of the public in our country, and the wrong understanding of the high quality of the domestic machinery and equipment is not as good as the imported equipment in foreign countries.Machinery manufacturing industry is the pillar industry in China's national economy. Therefore, it is required that the machinery manufacturing industry must attach importance to the research and development of core technology and change the state of relying on the core equipment abroad.

Machinery manufacturing level is lagging behind China's machinery manufacturing industry is lagging behind, and the most obvious gap between foreign machinery manufacturing industry is the engine manufacturing.Our country has a low attention to intellectual property, and the management of intellectual property is far behind the developed countries, and the level of intellectual property management of many researchers is very backward.

The focus of state support deviates from the attention of our government departments to production and manufacturing industry and the investment of funds will directly affect the level of technology research and development in the machinery manufacturing industry.In the past few decades, our government has not attached great importance to the development of mechanical manufacturing industry, nor has it provided policy or fund support for the machinery manufacturing industry. Not only that, the intellectual property rights of the R & D personnel can not be effectively protected, which greatly reduced the research and development of R & D personnel.


What is the future development situation?

With the advent of the new century, computer integrated manufacturing has gradually become the most common form of production in the machinery manufacturing industry.Computer integrated manufacturing can integrate a certain number of related systems in the enterprise, such as automated manufacturing system, information management system, information quality system, engineering technology information system and computer network and database system, and can be used in computer integrated manufacturing to achieve unified management.

Intelligent machinery is an intelligent system in the intelligent machinery manufacturing industry. Intelligent system can be used to analyze the production status and manage intelligently according to the analysis results.The intelligent system of the machinery manufacturing industry has the friendliness and adaptability, which can not only reduce the contradiction between the managers and the production staff, but also make the management process more in line with the actual production situation.The introduction of intelligent production equipment can not only greatly improve the safety in the production process, reduce environmental pollution, but also make the product performance more in line with the actual demand of the market.

Agility is one of the most important criteria for judging the competitive strength of the mechanical manufacturing industry. Therefore, the mechanical manufacturing enterprises must improve their response ability.The machinery manufacturing enterprises should cooperate with each other in order to understand the specific needs of the users in the shortest time and improve the response ability. Only in this way can the products meet the users' needs, and the competitive strength of the enterprises can be promoted.



  • What is 'multiple certification'?

    This is where a batch of steel meets more than one specification or grade. It is a way of allowing melting shops to produce stainless steel more efficiently by restricting the number of different types of steel. The chemical composition and mechanical properties of the steel can meet more than one grade within the same standard or across a number of standards. This also allows stockholders to minimise stock levels.

    For example, it is common for 1.4401 and 1.4404 (316 and 316L) to be dual certified - that is the carbon content is less than 0.030%. Steel certified to both European and US standards is also common.

  • What surface finishes are available on stainless steels?

    There are many different types of surface finish on stainless steel. Some of these originate from the mill but many are applied later during processing, for example polished, brushed, blasted, etched and coloured finishes.

    The importance of surface finish in determining the corrosion resistance of the stainless steel surface cannot be overemphasised. A rough surface finish can effectively lower the corrosion resistance to that of a lower grade of stainless steel.

  • Can I use stainless steel at high temperatures?

    Various types of stainless steel are used across the whole temperature range from ambient to 1100 deg C. The choice of grade depends on several factors:

    1. Maximum temperature of operation
    2. Time at temperature, cyclic nature of process
    3. Type of atmosphere, oxidising , reducing, sulphidising, carburising.
    4. Strength requirement

    In the European standards, a distinction is made between stainless steels and heat-resisting steels. However, this distinction is often blurred and it is useful to consider them as one range of steels.

    Increasing amounts of Chromium and silicon impart greater oxidation resistance. Increasing amounts of Nickel impart greater carburisation resistance.

  • Can I use stainless steel at low temperatures?

    Austenitic stainless steels are extensively used for service down to as low as liquid helium temperature (-269 deg C). This is largely due to the lack of a clearly defined transition from ductile to brittle fracture in impact toughness testing.

    Toughness is measured by impacting a small sample with a swinging hammer. The distance which the hammer swings after impact is a measure of the toughness. The shorter the distance, the tougher the steel as the energy of the hammer is absorbed by the sample. Toughness is measured in Joules (J). Minimum values of toughness are specified for different applications. A value of 40 J is regarded as reasonable for most service conditions.

    Steels with ferritic or martensitic structures show a sudden change from ductile (safe) to brittle (unsafe) fracture over a small temperature difference. Even the best of these steels show this behaviour at temperatures higher than -100 deg C and in many cases only just below zero.

    In contrast austenitic steels only show a gradual fall in the impact toughness value and are still well above 100 J at -196 deg C.

    Another factor in affecting the choice of steel at low temperature is the ability to resist transformation from austenite to martensite. 

  • Is stainless steel non-magnetic?

    It is commonly stated that “stainless steel is non-magnetic”. This is not strictly true and the real situation is rather more complicated. The degree of magnetic response or magnetic permeability is derived from the microstructure of the steel. A totally non-magnetic material has a relative magnetic permeability of 1. Austenitic structures are totally non-magnetic and so a 100% austenitic stainless steel would have a permeability of 1. In practice this is not achieved. There is always a small amount of ferrite and/or martensite in the steel and so permeability values are always above 1. Typical values for standard austenitic stainless steels can be in the order of 1.05 – 1.1. 

    It is possible for the magnetic permeability of austenitic steels to be changed during processing. For example, cold work and welding are liable to increase the amount of martensite and ferrite respectively in the steel. A familiar example is in a stainless steel sink where the flat drainer has little magnetic response whereas the pressed bowl has a higher response due to the formation of martensite particularly in the corners.

    In practical terms, austenitic stainless steels are used for “non-magnetic” applications, for example magnetic resonance imaging (MRI). In these cases, it is often necessary to agree a maximum magnetic permeability between customer and supplier. It can be as low as 1.004.

    Martensitic, ferritic, duplex and precipitation hardening steels are magnetic.

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