The tool is an important element of the machine tool. It takes up a small proportion of the overall cost of the machine tool, but the impact ratio of the machine tool processing is quite different from the overall cost of the machine tool. As far as machining as a whole is concerned, machine tool builders and tool suppliers are moving towards new tool designs that better reflect the uniqueness of machine tools.
However, at present, the product structure of China's tool industry is seriously unbalanced, that is, the production tool does not match the demand. The performance is as follows: the cemented carbide tool has a large gap, and the high-speed steel tool is overproduced; the high-efficiency tool gap is large, and the low-grade standard tool is overproduced.
In foreign countries, cemented carbide tools dominate, with a specific gravity of more than 60%, high-speed steel tools are reduced by 1% to 2% per year, and PCD\\CBN super-hard tools account for 5%. In China, the proportion of cemented carbide tools is less than 25%, and the actual domestic production demand has reached 50%. At present, the annual output of domestic cemented carbide is 16,000 tons, accounting for about 40% of the total global production. However, the most valuable cutting inserts in cemented carbide products are only 3,000 tons, accounting for 20%. The proportion of high value-added blades in Japan is as high as 72%. The annual sales revenue of cemented carbide tools in China is about 560 million US dollars. The annual output of Japan is 40% of China's, but the annual sales revenue is as high as 2.633 billion US dollars.
The high-grade standard knives used in the automotive industry include: high-speed steel drill bits, carbide drills, broaches, carbide inserts, PCD\\CBN inserts, and some ceramic inserts. Then as a tool manufacturer, to meet the needs of high-end products such as car manufacturers, the following must be done:
First, maintain the advanced nature of tool technology. In general, a new engine parts production plan will use advanced manufacturing techniques at the time, such as the use of super-hard material tools, PCD tools, CBN tools and advanced coated tools, to meet high-speed cutting, dry cutting, etc.; Meets high-efficiency and high-precision cutting of parts such as crankshaft journal milling and pull-out technology, and composite cutting technology for connecting rod and cylinder head parts.
Second, to ensure the reliability and stability of the quality of the tool products. The reliability and stability of tool product quality is the basic premise for building tool brand and user trust; car manufacturing is essentially mass production, and the reliability and stability of tool product quality are the basic requirements for mass production.
Third, the tool products must have a high cost performance. Shop around, except for quality and service. The high cost performance of the tool products is a favorable guarantee for the cooperation with the OEM. How to find the balance between product price and performance and the win-win situation between the tool manufacturer and the manufacturing company is a subject to be studied by both parties.
Fourth, tool manufacturers must have the ability to supply in a timely manner. The fierce competitive environment of the car manufacturing industry forced it to do everything possible to reduce costs, continuously reduce various inventories, reduce capital occupation is the development trend; manufacturing enterprises reduce tool inventory, increase the frequency of turnover, and propose more timely supply of tool manufacturers. High requirements.
5. Tool manufacturers must have the ability to solve on-site cutting problems. A production line that has been put into production, along with the time, there will always be cutting problems that are not considered in the planning, such as changes in wool materials, technological transformation of equipment. If the tool manufacturer can help the manufacturing company solve the cutting problem encountered, it will undoubtedly greatly increase the user's trust in the tool brand. For example, when turning a crankshaft thrust gear, when machining a steel crankshaft, the tool durability is more than 500. When processing ductile iron, the same surface quality is achieved, and the tool durability is less than 100.
Sixth, tool manufacturers should actively adapt to the development needs of car manufacturing enterprises. The original tooling of the machine tool should participate in the planning and design of the pre-production line, and strive to achieve optimization in the planning and design stage. In daily production, we must actively understand the development needs of manufacturing enterprises and help solve practical production problems; we should actively introduce advanced products in the tool field and provide corresponding training; continuously improve the technical management level and service level of tool manufacturers to meet manufacturing. The development needs of enterprises.
However, at present, the product structure of China's tool industry is seriously unbalanced, that is, the production tool does not match the demand. The performance is as follows: the cemented carbide tool has a large gap, and the high-speed steel tool is overproduced; the high-efficiency tool gap is large, and the low-grade standard tool is overproduced.
In foreign countries, cemented carbide tools dominate, with a specific gravity of more than 60%, high-speed steel tools are reduced by 1% to 2% per year, and PCD\\CBN super-hard tools account for 5%. In China, the proportion of cemented carbide tools is less than 25%, and the actual domestic production demand has reached 50%. At present, the annual output of domestic cemented carbide is 16,000 tons, accounting for about 40% of the total global production. However, the most valuable cutting inserts in cemented carbide products are only 3,000 tons, accounting for 20%. The proportion of high value-added blades in Japan is as high as 72%. The annual sales revenue of cemented carbide tools in China is about 560 million US dollars. The annual output of Japan is 40% of China's, but the annual sales revenue is as high as 2.633 billion US dollars.
The high-grade standard knives used in the automotive industry include: high-speed steel drill bits, carbide drills, broaches, carbide inserts, PCD\\CBN inserts, and some ceramic inserts. Then as a tool manufacturer, to meet the needs of high-end products such as car manufacturers, the following must be done:
First, maintain the advanced nature of tool technology. In general, a new engine parts production plan will use advanced manufacturing techniques at the time, such as the use of super-hard material tools, PCD tools, CBN tools and advanced coated tools, to meet high-speed cutting, dry cutting, etc.; Meets high-efficiency and high-precision cutting of parts such as crankshaft journal milling and pull-out technology, and composite cutting technology for connecting rod and cylinder head parts.
Second, to ensure the reliability and stability of the quality of the tool products. The reliability and stability of tool product quality is the basic premise for building tool brand and user trust; car manufacturing is essentially mass production, and the reliability and stability of tool product quality are the basic requirements for mass production.
Third, the tool products must have a high cost performance. Shop around, except for quality and service. The high cost performance of the tool products is a favorable guarantee for the cooperation with the OEM. How to find the balance between product price and performance and the win-win situation between the tool manufacturer and the manufacturing company is a subject to be studied by both parties.
Fourth, tool manufacturers must have the ability to supply in a timely manner. The fierce competitive environment of the car manufacturing industry forced it to do everything possible to reduce costs, continuously reduce various inventories, reduce capital occupation is the development trend; manufacturing enterprises reduce tool inventory, increase the frequency of turnover, and propose more timely supply of tool manufacturers. High requirements.
5. Tool manufacturers must have the ability to solve on-site cutting problems. A production line that has been put into production, along with the time, there will always be cutting problems that are not considered in the planning, such as changes in wool materials, technological transformation of equipment. If the tool manufacturer can help the manufacturing company solve the cutting problem encountered, it will undoubtedly greatly increase the user's trust in the tool brand. For example, when turning a crankshaft thrust gear, when machining a steel crankshaft, the tool durability is more than 500. When processing ductile iron, the same surface quality is achieved, and the tool durability is less than 100.
Sixth, tool manufacturers should actively adapt to the development needs of car manufacturing enterprises. The original tooling of the machine tool should participate in the planning and design of the pre-production line, and strive to achieve optimization in the planning and design stage. In daily production, we must actively understand the development needs of manufacturing enterprises and help solve practical production problems; we should actively introduce advanced products in the tool field and provide corresponding training; continuously improve the technical management level and service level of tool manufacturers to meet manufacturing. The development needs of enterprises.
The check valve is used in the piping system, its main function is to prevent the backflow of the medium, prevent the pump and its driving motor from reversing, as well as the release of the medium in the container.
Check valves can also be used to feed pipes where the pressure may rise to exceed the pressure of the main system. Check valve according to the different material, can be applied to a variety of media pipeline.
The check valve is installed on the pipeline, which becomes one of the fluid components of the complete pipeline. The opening and closing process of the valve disc is affected by the transient flow state of the system in which it is located. In turn, the closing characteristics of the disc have an effect on the fluid flow state.
Check Valve,Hydraulic Check Valve,Check Valve Types,Ball Check Valve
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