Three common materials for standard parts2020-09-18
According to the needs of the current hardware market, the use of materials is also very important for standard parts, and the standard parts materials that may be used in different applications are different, such as the performance standards of different materials. According to the market survey of China Standard Parts Network, standard parts mainly consist of carbon steel, stainless steel and copper.Read details
Carbon steel: We distinguish low-carbon steel, medium-carbon steel, high-carbon steel and alloy steel based on the carbon content of carbon steel materials.
1. Low carbon steel C%≤0.25% is usually called A3 steel in China. It is basically called 1008, 1015, 1018, 1022, etc. abroad. Mainly used for products with no hardness requirements such as grade 4.8 bolts, grade 4 nuts, small screws, etc. (Note: Drilling nails mainly use 1022 material.)
2. Medium carbon steel 0.25%<C%≤0.45% Generally called No. 35 and No. 45 steel in China, and basically called 1035, CH38F, 1039, 40ACR, etc. abroad. Mainly used for grade 8 nuts, grade 8.8 bolts and grade 8.8 inner hexagon products.
3. High carbon steel C%>0.45%. Currently not used in the market
4. Alloy steel: Add alloy elements to ordinary carbon steel to increase some special properties of steel: such as 35, 40 chromium molybdenum, SCM435, 10B38. Fanwo screws mainly use SCM435 chromium-molybdenum alloy steel, the main components are C, Si, Mn, P, S, Cr, Mo.
Stainless steel: performance level: 45, 50, 60, 70, 80
Mainly divided into austenite (18%Cr, 8%Ni) good heat resistance, good corrosion resistance and good weldability. A1, A2, A4 martensite and 13%Cr have poor corrosion resistance, high strength and good wear resistance. C1, C2, C4 ferritic stainless steel. 18%Cr has better upsetting and corrosion resistance than martensite. Currently imported materials on the market are mainly Japanese products. According to the level, it is mainly divided into SUS302, SUS304, and SUS316.
Copper: Commonly used materials are brass...zinc-copper alloy. The market mainly uses H62, H65, H68 copper as standard parts.
Construction Machinery Association: China's construction machinery market welcomes rapid growth2020-09-18
Qi Jun, President of the China Construction Machinery Industry Association, stated at the "BICES2019 100-Day Countdown Press Conference" on the 29th that China's construction machinery market has grown rapidly in the past two years and is expected to increase by about 10% in 2019 from 2018. .Read details
Qi Jun said that in 2018, the total sales of China's construction machinery products increased by 25.5%. In the first quarter of 2019, the construction machinery market still performed well, with the total sales of major products increasing by 15.2%. According to statistics, in April 2019, the 25 excavator manufacturing companies included in the statistics sold a total of 7% year-on-year increase in sales of various types of excavators; the 22 loader manufacturers included in the statistics sold a total of 6.26% of all types of loaders. It is expected that the total sales of main products of construction machinery in 2019 will increase by about 10% on the basis of 2018.
In Qi Jun's view, the achievements of China's construction machinery industry are inseparable from the overall sound environment of China's economy. The Chinese government's reduction of value-added tax rates for manufacturing, construction, transportation and other industries will bring policy dividends and radiation effects to the manufacturing, construction and related industries, which will provide for the stable development of the construction machinery industry in 2019 and the next few years. Strong support.
The construction machinery industry is closely related to infrastructure engineering. Qi Jun believes that the Xiongan New Area is about to enter a large-scale substantive construction phase; China's fixed asset investment in roads, waterways, and railways will also increase significantly in 2019; China will further promote the implementation of a number of projects involving the Beijing-Tianjin-Hebei and Yangtze River Infrastructure construction projects in the economic belt, the Guangdong-Hong Kong-Macao Greater Bay Area and the central and western regions.
Qi Jun said that the above-mentioned infrastructure construction and people's livelihood guarantee projects will give rise to a huge demand for more environmentally friendly and more efficient construction machinery and equipment. It is an opportunity for construction machinery manufacturers all over the world, and it is also a guarantee for the continued growth of China's construction machinery market in the future.
New trends in the development of auto parts industry chain2020-09-18
As the top of the automobile industry, the auto parts industry can also be said to be the foundation of the development of the automobile industry. In recent years, with the rapid development of the vehicle consumer market and the service and maintenance market, the auto parts industry has developed rapidly, and the development trend is good, and it is constantly transforming and upgrading to the direction of specialization.Read details
At the same time, the globalization of the automotive industry chain has accelerated the merger and reorganization of vehicle companies, broke the original global supporting system, and promoted the merger and reorganization of component companies. At the same time, in order to adapt to the new needs of automakers in the world's auto parts industry, some new development trends have emerged:
1. The development and changes of the collaborative relationship between automobile and component manufacturers
Today's organizational relationship between European and American automobile and component manufacturers has been greatly improved, and the past purely competitive-based supply model has been greatly improved. The direction of improvement is Japan's subcontracting type, reducing the number of first-level component suppliers. Reduce management functions, while maintaining competitiveness, take into account cooperation. The ways of cooperation include strategic alliances between enterprises and mutual shareholding.
Japan and South Korea’s cooperation-based subcontracting model retains the characteristics of its cooperation and continues to join the competition mechanism. Even if only two manufacturers supply parts and components, they can use the “development competition” mentioned above. Maintain the effectiveness of competition.
The new network structure formed by the mutual supply of various parts and components production systems is conducive to improving the degree of competition. The organizational relationship between the entire retailer is becoming more and more cooperative and competitive, improving organizational efficiency, giving play to the respective advantages of vehicle and component manufacturers, and improving the overall competitiveness of the entire supply chain.
2. Global development
The global development trend of the automotive supply chain is obvious to all. Due to the globalization of the consumer market, OEMs are bound to use different means such as sole proprietorship and joint ventures to enter various consumer hotspots around the world, and this global distribution of OEMs will cause component manufacturers to follow, this globalization trend The following challenges are presented to component manufacturers:
The global demand trend of the supporting market and the aftermarket requires component manufacturers to meet global delivery capabilities. In order to achieve timely delivery, more consideration needs to be given to various delivery issues, and even the global supply of raw materials.
In order to ensure 100% DIFOT, and based on certain tax issues, component manufacturers may adopt a strategy of following the global distribution of automakers. However, the conflict between this decentralized organizational model and the original centralized management, and how to reduce operating costs while improving the balance of organizational efficiency pose challenges to the shared service capabilities of enterprises.
3. The development of technology and the upgrading of high-end manufacturing of parts and components
With the improvement of new energy requirements for vehicle safety, comfort, and environmental protection, the manufacturing technology of auto parts has also produced some new changes, including:
Product environmental protection, strengthen the research on "green cars", actively apply new energy, and promote the requirements of energy saving and emission reduction. In Germany's 2020 high-tech strategy setting, one of the future projects is: Germany will have one million electric vehicles in 2020.
Electronic and intelligent products have become a major trend in the development of the automotive industry. How to improve the safety and comfort of automotive use through electronic technology has also become a hot spot in the entire industry. The global automotive electronics industry will maintain an average growth of 8.5% by 2020 Intensity.
Networking of information exchange: With the maturity of 4G/LTE and cloud technologies, the information exchange parts in automotive electronic products are becoming more and more networked. Parts and components are modularized and generalized to cope with the platform strategy of automakers. Product lightweight: The lightweight of future cars is actually the lightweight of parts. The large number of applications of aluminum castings, aluminum-magnesium alloy parts, and automotive plastic parts will be a trend. Development of digitalization and globalization: simulation technology, three-dimensional digitalization,