Precautions for the use of cast iron plate: 1. Before installation, first install and debug to prevent damage to the working surface of the cast iron plate; 2. Pay attention to moisture and corrosion during use, and take care not to place the cast iron plate too high. And too low temperature ring cast iron fixed plate use precautions:
1. Before use, first install and debug to prevent damage to the working surface of the cast iron plate;
2. Pay attention to moisture and corrosion during use, and be careful not to store the cast iron plate in too high or too low temperature environment;
Use environment:
place of use
Altitude <1000M
Maximum temperature +40 ° C
Minimum temperature -5 ° C
Maximum daily temperature difference 15K
Relative temperature (at 20 ° C) 95%
Installation location indoor
Operation mode
3. The weight of the workpiece should not exceed the rated load of the cast iron plate, so as to avoid the work quality degradation and damage to the structure of the cast iron plate.
4. After the cast iron plate is used, it should be cleaned and rust-proof work.
Generally, the service life of the cast iron plate is very long. As long as the correct method is used and stored, the precision of the cast iron plate surface can be maintained for more than 2 years. When the accuracy is reduced, it can be recovered by debugging or scraping process.
Cast iron fixing daily maintenance
1. In order to prevent the deformation of the cast iron plate, when lifting the cast iron plate, four lifting wires of the same length should be used to hang the four lifting holes on the cast iron plate, and the cast iron plate can be smoothly hoisted on the transport. .
2. The cast iron plate support points are well padded and leveled to ensure uniform force on each support point, ensuring a stable entire cast iron plate.
3. When the cast iron plate is installed, the support points of the cast iron plate are adjusted and lapped with the adjusting horn. The professional technicians adjust the welding platform to the qualified precision.
4. When using the cast iron plate, gently handle the workpiece. Do not move the rough workpiece on the cast iron plate to avoid bumping, scratching and other damage to the cast iron plate.
5. In order to prevent the overall deformation of the cast iron plate, after use, the workpiece should be taken off the cast iron plate to avoid deformation of the cast iron plate caused by the workpiece being pressed against the cast iron plate for a long time.
6. When the cast iron plate is not in use, wash the work surface in time, then apply a layer of anti-rust oil, and cover it with anti-rust paper. Cover the cast iron plate with the outer package of the cast iron plate to prevent the usual attention. Causes damage to the cast iron working surface.
7. The cast iron plate should be installed in a ventilated, dry environment and away from heat sources, corrosive gases, and corrosive liquids.
8. The cast iron plate is subject to regular weekly inspection according to national standards. The verification period can be 6-12 months depending on the specific conditions.
9. When the cast iron plate is not used for a long time, if the appropriate anti-rust measures are not taken, it will cause a large area of ​​rust, which will cause serious damage to the welding platform. The cast iron plate that is not used for the time is rust-proof and is divided into short-term rust prevention and long-term rust prevention. It can also be divided into on-site anti-rust and anti-rust. There are two methods for long-term anti-rust: one is the same as the short-term anti-rust. After the cast iron is fixed, the sealing cover is covered with a desiccant. The second is to prevent rust with anti-rust oil, then use neutral paraffin paper or benzene. Sodium formate paper wrap; the storage shelf in the storage site must be at a certain height from the ground. The short-term anti-rust preservation is for the platform and work and measuring tools that are temporarily stored indoors, and also includes equipment that is not used on weekends. After the equipment has finished processing the parts, the equipment is rust-proofed on the spot. A simple and effective method is to clean or clean the surface of the equipment and then apply it for rust prevention. After the rails, clamps, etc. are exposed to the exposed surface and moving parts, anti-rust oil should be applied. To prevent the anti-rust oil from absorbing dust, cover the equipment with a cover cloth. The inner surface of the cast iron plate and the inner cavity are painted or sprayed with anti-rust oil, and the outside is sealed and protected.
Specific rust protection method is applied to rust preventive oil:
1. Coating anti-rust lubricating oil and sealing anti-rust oil: anti-rust lubricating oil is applied at room temperature, both rust-proof and slippery, suitable for general mechanical equipment. " target=_blank> rust prevention of mechanical equipment lubrication parts Sealed; recommended anti-rust oil at room temperature, good anti-rust performance, thin oil film, less dosage, easy to open, is the most widely used anti-rust oil.
2, coating replacement type anti-rust oil: mechanical equipment "target=_blank> mechanical equipment and welding platform, the metal surface of the measuring tool is easy to contaminate the sweat on the hand, sweat contains sodium chloride, lactic acid is soluble in water, insoluble The petroleum solvent often causes fingerprint rust. The adsorption of the surfactant in the replacement rust preventive oil is very strong, forcing the water particles to leave the metal surface to form water-in-oil particles, which no longer corrode the metal surface.
3. Coating solvent diluted anti-rust oil: This anti-rust oil is characterized by containing a solvent which can be volatilized. After coating, the solvent volatilizes to form a uniform protective film to protect the metal surface from corrosion. More applications are hard film anti-rust oil. The protective film formed by the solvent-diluted hard film anti-rust oil has certain mechanical strength, is not easy to be broken, does not stick to dust, has good rust resistance, and can be used indoors and outdoors for a long time, and is suitable for the prevention of large and medium-sized simple devices. Rust protection. Due to the presence of volatile flammable solvents, special attention should be paid to fire protection. The rust-proof water is mainly used for short-term rust prevention and is used for storage. Anti-rust water is easy to prepare and remove, has little environmental pollution, low price and good safety. It is a commonly used anti-rust material. The classification of cast iron is measured by a ring gauge. Anti-rust water can be used in a variety of ways, including full immersion, cold dip coating, hot dip coating and spray. Before using rust preventive water, the metal surface must be cleaned and dried, otherwise it will affect the rust prevention effect. The rust-proof water leaves only a very thin layer on the metal surface. The specific concentration must be determined according to factors such as rust-preventing period, environmental conditions, and seasonal climate. Both the packaged gas phase anti-rust paper and the placed vapor phase slow release agent must be sealed during the use process to ensure long-term anti-rust period and reliable effect. Anti-rust protection measures during the use of cast iron plate. Cast iron plate and measuring tools are used in anti-rust measures. 1. The workshop should be kept clean to prevent a large amount of dust from entering and reduce the humidity in the workshop. The warehouse should be dehumidified during the summer. Pay attention to the corrosion caused by low temperature frosting. 2. After the work is completed every day, use the anti-rust oil to wipe the moving parts of the equipment and the exposed parts of the metal.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Piston seal is a kind of seal used to seal between piston and cylinder, usually used in hydraulic system and Pressure system. The piston seal can prevent liquid and gas leakage, and also prevent external impurities from entering the system, thus maintaining the normal operation of the system.
Piston seals can be classified based on their structure and material. According to different structures, piston seals can be divided into unidirectional seals and bidirectional seals. A unidirectional seal can only prevent the leakage of liquid or gas from one direction, while a bidirectional seal can prevent the leakage of liquid or gas from both directions. According to different materials, piston seals can be divided into rubber seals, polyurethane seals, polytetrafluoroethylene seals, etc.
In hydraulic systems, piston seals are typically used to seal hydraulic cylinders and pumps. The piston seals in hydraulic systems need to have characteristics such as high temperature resistance, corrosion resistance, and wear resistance to ensure long-term stable operation of the system. In Pressure system, piston seals are usually used to seal cylinders and pumps. The piston seals in the Pressure system need to be resistant to high pressure, low temperature, wear and other characteristics to ensure the normal operation of the system.
In addition to hydraulic system and Pressure system, piston seals can also be used in other industrial fields, such as automobile, aviation, machinery, etc. In the automotive industry, piston seals are commonly used in engines to ensure normal engine operation. In the aviation industry, piston seals are commonly used in the hydraulic system of aircraft to ensure normal takeoff, landing, and flight. In the field of machinery, piston seals are commonly used in hydraulic and press machines to ensure the normal operation of the machine.
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