1. Cast iron platform blank: make drawings according to technical requirements, make wooden or foam shapes according to the drawings, ingredients, modeling, drying, casting, sand falling, cleaning, and inspection of all parts of the blank;
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2. Machining of cast iron platform: appearance inspection and marking, workpiece on machine tool, processing, inspection and tempering;
3. Machine tool on cast iron platform, processing and delivery according to drawing requirements Inspection by the laboratory department;
4. Leveling of the cast iron platform workpiece, manual scraping and grinding, and inspection by the laboratory department;
5. Appearance treatment, painting, packaging and storage of the cast iron platform.
6. Cast iron platforms can be divided into the following categories according to their uses: inspection cast iron platforms, welding cast iron platforms, marking cast iron platforms, assembly cast iron platforms, measuring cast iron platforms, assembly cast iron platforms, experimental cast iron platforms, grinding Cast iron platform etc. Among them, the inspection cast iron platform has higher accuracy requirements, and the riveting cast iron platform has the lowest accuracy requirements. The experimental cast iron platform is generally used in splicing, and if the vibration is large, it must be cast together with the ground; the grinding cast iron platform is made of ductile iron, and its Precision and finish are the most demanding among cast iron platforms.
《2》The cast iron platform must be installed and debugged before use. Then, wipe the working surface of the cast iron platform clean and use it after confirming that there are no problems. During use, pay attention to avoid excessive collision between the workpiece and the working surface of the cast iron platform to prevent damage to the working surface of the cast iron platform; the weight of the workpiece It is also not allowed to exceed the rated load of the cast iron platform, otherwise the work quality will be reduced, the structure of the cast iron platform may be damaged, and the cast iron platform may even be deformed, making it damaged and unusable. The cast iron platform is used for various inspection work, such as the reference plane for precision measurement, inspection and measurement of various machine tools, checking the dimensional accuracy and position deviation of parts, and making precision markings. The cast iron platform is an important tool for machine tools, machinery manufacturing, and electronic production. Products that are indispensable for more than 20 industries. The cast iron platform is an indispensable workbench for marking, measuring, riveting and welding, and tooling processes. The cast iron platform can also be used as a mechanical test bed, etc. Cast iron platforms are usually classified according to their uses. The classification of cast iron platforms according to their uses is: when used for inspection, it is called an inspection cast iron platform, when it is marked, it is called a marking cast iron platform, when it is assembled, it is called an assembly cast iron platform, etc. When it is used for drawing, it is called a line drawing cast iron platform. The platform is called riveting cast iron platform during riveting welding, tooling cast iron platform during tooling, vibration experiment cast iron platform during vibration experiment, welding cast iron platform during welding, etc.
3 "The production process of cast iron flat plates generally must strictly adopt the "People's Republic of China Machinery Industry Standard" jb/T 7974-2000 for processing and production. But sometimes it is necessary to design according to local conditions and circumstances. When there are discrepancies between the national standards and corporate standards of cast iron flat plates and the usage requirements of cast iron flat plates, special designs can be made based on the actual needs of cast iron flat plates. The concept of designing cast iron flat plates should be based on the principle of achieving the best use effect at the lowest cost, and the best use effect should also achieve the principle of mutual benefit for both production and use. The material of cast iron flat plates can be divided into two categories: ductile iron and gray iron: Ductile iron cast iron flat plates are rarely used, and are generally used in cast iron flat plates with smaller specifications and higher precision requirements, such as grinding cast iron flat plates, whose accuracy can be used Cast iron flat plates are used in cast iron plates with precision above level 0; gray iron cast iron flat plates are widely used, which reduces the cost of cast iron flat plates, short production cycle, simple process, and durability are one of the reasons why manufacturers and users prefer them. Among cast iron flat plates, Gray iron can also be classified according to its row number. The row number of cast iron flat plates is selected based on the "Machinery Industry Standards of the People's Republic of China" and actual needs. We know that the design technical requirements for cast iron flat plates are generally designed according to the "People's Republic of China Machinery Industry Standards" jb/T 7974-2001, and the technical requirements for cast iron flat plates must be formulated based on actual needs.
《4》The technical parameters of the cast iron flat plate mainly include: the load-bearing capacity of the cast iron flat plate, the length, width and height of the cast iron flat plate, the surface accuracy of the cast iron flat plate, the weight of the cast iron flat plate, the material requirements of the cast iron flat plate, etc. When customers purchase cast iron flat plates, some parameters often differ from national standards.
We know that the cast iron flat plate is designed according to the "People's Republic of China Machinery Industry Standard" jb/T 7974-2001, and actual needs must be considered in practical applications. Therefore, the height, working surface, ribs, etc. of the cast iron flat plate can be reasonably changed during design to suit the actual demand for the cast iron flat plate. What kind of hole defects will appear during the casting process of cast iron flat plates? As long as the correct method is used to make up for the process, defects in the working surface of cast iron flat plates are important parts that cannot be ignored. The main defects of cast iron flat plates include: pores, sand holes, and sand inclusions. , shrinkage, etc. Defects of cast iron flat plates have detailed regulations on how to deal with them in the "Machinery Industry Standards of the People's Republic of China" jb/T 7974-2000. The service life of cast iron slabs is closely related to defect repair. Therefore, when repairing defects in cast iron flat plates, it is necessary to strictly follow the process requirements.
《5》 Load-bearing requirements of cast iron flat plates: The load-bearing capacity of cast iron flat plates refers to the deformation deflection of cast iron flat plates after the weight per unit area of ??the cast iron flat plates is borne. For ease of understanding, we can think of it as the pressure that the cast iron flat plate can withstand without affecting normal use after placing the workpiece on it. Of course, the load-bearing capacity of the cast iron flat plate is closely related to its actual design and actual production and processing.
"6" The accuracy of cast iron flat plates can also be said to be the flatness of cast iron flat plates (same as above): the general accuracy of cast iron flat plates can be divided into level 000, level 00, level 0, level 1, level 2, and level 3 class. The accuracy standards of cast iron flat plates can be found in the "Machinery Industry Standards of the People's Republic of China" jb/T 7974-2000. The selection of accuracy standards generally depends on the usage conditions. Cast iron flat plates with a precision of level 3 or above are used for inspection, marking, assembly, etc. Cast iron flat plates with a precision of below level 4 are generally used for riveting and welding. There will be some errors between the design and actual dimensions of the cast iron flat plate. For example, the length, width, and height diagonals of the cast iron flat plate are generally within ±0.02 (a or b). The height requirement of the cast iron flat plate: 630× The height of 630 cast iron slabs is between 220 and 140; the height of cast iron slabs from 1000×1000 to 800×800 is between 300 and 400; the height of cast iron slabs above 1600×1000 is above 400. The choice of materials for cast iron flat plates is also constantly changing with the development of the economy. From HT150 in the 1960s and 1970s to HT200 and even HT250 now, some users also use HT300, which shows that enterprises have economical With strength, people pay more attention to the quality of cast iron flat plates. However, when choosing the material of cast iron flat plates, we still recommend that you choose HT200. After all, previous experience and corporate standards (HT150 material has been used) can be used for reference. It is a bit economical and wasteful to use HT250 or HT300 for cast iron flat plates. . Load-bearing requirements of cast iron flat plates: The load-bearing capacity of cast iron flat plates refers to the deformation deflection of cast iron flat plates after the weight per unit area of ??the cast iron flat plates is borne. For ease of understanding, we can think of it as the pressure that the cast iron flat plate can withstand without affecting normal use after placing the workpiece on it. Such as the reference plane for precision measurement, inspection and measurement of various machine tools, checking the dimensional accuracy and position deviation of parts, and making precise markings. Cast iron flat plates are indispensable for more than 20 industries such as machine tools, machinery manufacturing, and electronic production. product. The cast iron flat plate is an indispensable workbench for marking, measuring, riveting and welding, and tooling processes. The cast iron flat plate can also be used as a mechanical test bench, etc.
"7" Cast iron flat plates can be divided into the following categories according to their uses: inspection cast iron flat plates, welded cast iron flat plates, scribing cast iron flat plates, assembly cast iron flat plates, measuring cast iron flat plates, assembly cast iron flat plates, experimental cast iron flat plates, Grinding cast iron slabs, etc. Among them, the inspection cast iron flat plate has higher accuracy requirements, and the riveting cast iron flat plate has the lowest accuracy requirement. Experimental cast iron flat plates are generally used in splicing, and if the vibration is large, they have to be cast together with the ground; grinding cast iron flat plates are made of ductile iron, and the other Precision and smoothness are the most demanding among cast iron flat plates.
《9》The cast iron flat plate must be installed and debugged first before use. Then it can be used.
It is meaningless to work on a cast iron plate that has not been installed and debugged properly. Installation and debugging of a cast iron plate by non-professionals is an illegal operation, which may damage the structure of the cast iron plate and even cause deformation of the cast iron plate, making it damaged and unusable. . Therefore, we must have professional staff to install and debug the cast iron slab before use. Installation and debugging by non-professionals is an illegal operation and must never be used. Cast iron flat plates are mainly used in more than 20 industries such as mechanical machine tool manufacturing, electronics, and electricity.
1. All users who purchase cast iron flat plates and other measuring tool series products produced by our company will implement "three guarantees" within one year. 2. The cast iron flat plates sold by our company have lifetime cost price warranty or trade-in for new ones.
3. If the user purchases the cast iron flat plate produced by our company with a value of more than 50,000 yuan, our company will send installation and maintenance personnel to the user's factory to provide thoughtful services.
《10》The technical requirements for the design of cast iron flat plates are generally designed in accordance with the "Machinery Industry Standards of the People's Republic of China" JB/T 7974-2000. Technical requirements for cast iron flat plates must also be issued based on actual needs. In the national standards and enterprise standards of cast iron flat plates and the usage requirements of cast iron flat plates, technical requirements can be put forward based on the actual needs of cast iron flat plates. The technical requirements for designing cast iron slabs are based on the principle of achieving the best at the lowest cost. When customers purchase cast iron flat plates, some parameters often differ from national standards. We know that the cast iron flat plate is designed according to the "Machinery Industry Standard of the People's Republic of China" JB/T 7974-2001, and actual needs must be considered in practical applications. Therefore, the height, working surface, ribs, etc. of the cast iron flat plate can be reasonably changed during design to suit the actual demand for the cast iron flat plate.
"11" There will be some product defects in the production process of cast iron flat plates. As long as the correct method is adopted, the defects in the working surface of cast iron flat plates are important parts that cannot be ignored. The main features of cast iron flat plates are Defects include: pores, sand holes, sand inclusions, shrinkage porosity, etc. The defects of cast iron flat plates have detailed regulations on how to deal with them in the "Machinery Industry Standard of the People's Republic of China" JB/T 7974-2000.
《12》The production process of cast iron flat plates generally must strictly adopt the "People's Republic of China Machinery Industry Standard" JB/T 7974-2000 for processing and production. But sometimes it is necessary to design according to local conditions and circumstances. When there are discrepancies between the national standards and corporate standards of cast iron flat plates and the usage requirements of cast iron flat plates, special designs can be made based on the actual needs of cast iron flat plates. The concept of designing cast iron flat plates should be based on the principle of achieving the best use effect at the lowest cost, and the best use effect should also achieve the principle of mutual benefit for both production and use. The material of cast iron flat plates can be divided into two categories: ductile iron and gray iron: Ductile iron cast iron flat plates are rarely used, and are generally used in cast iron flat plates with smaller specifications and higher precision requirements, such as grinding cast iron flat plates, whose accuracy can be used Cast iron flat plates are used in cast iron plates with precision above level 0; gray iron cast iron flat plates are widely used, which reduces the cost of cast iron flat plates, short production cycle, simple process, and durability are one of the reasons why manufacturers and users prefer them. Among cast iron flat plates, Gray iron can also be classified according to its row number. The row number of cast iron flat plates is selected based on the "Machinery Industry Standards of the People's Republic of China" and actual needs. We know that the technical requirements for the design of cast iron flat plates are generally designed according to the "People's Republic of China Machinery Industry Standards" JB/T 7974-2001, and the technical requirements for cast iron flat plates must be formulated based on actual needs. The technical parameters of the cast iron flat plate mainly include: the load-bearing capacity of the cast iron flat plate, the length, width and height of the cast iron flat plate, the surface accuracy of the cast iron flat plate, the weight of the cast iron flat plate, the material requirements of the cast iron flat plate, etc. When customers purchase cast iron flat plates, some parameters often differ from national standards. We know that the cast iron flat plate is designed according to the "Machinery Industry Standard of the People's Republic of China" JB/T 7974-2001, and actual needs must be considered in practical applications. Therefore, the height, working surface, ribs, etc. of the cast iron flat plate can be reasonably changed during design to suit the actual demand for the cast iron flat plate.