Lubrication practice of steel drum sealing roller (Lang Qiang, Xu Fuyuan)
Lubrication practice of steel drum sealing roller
Lang Qiang Xu Fuyuan
In the steel drum manufacturing industry, for closed steel drums, the sealing process is the key technology of the steel drum making process. The quality of the small opening steel drum seal directly affects the product quality of the steel drum, which also affects the image of the enterprise product.
The quality requirements of steel drums, in addition to the appearance and seal assembly quality regulations, as well as the material requirements for steel drums, the performance inspection requirements for steel drums, small-open steel drums should be airtight, hydraulic, and drop tests. Four major performance tests, such as stacking test. Among them, the airtight test, the hydraulic test, and the drop test are used to check whether there is leakage at the top of the barrel bottom and the sealing of the flange. The stability of the curling quality is the basis for ensuring product quality.
The quality of packaging products has changed the phenomenon of “one type of products, two types of packaging, and three types of prices†with the advancement of society. In the product packaging of the 1990s, it has become a position for people to choose products. Improving the quality of product packaging has also become a survival option for the packaging industry. The appearance quality requirements of steel drum packaging are also constantly improving. In the past, steel drums were not degreased and phosphatized. Therefore, steel drums must be degreased and phosphatized to improve the surface adhesion of steel drum coatings.
In the past, when the steel drum was not degreased and phosphatized, the rust preventive oil on the surface of the sheet could be lubricated to the sealing wheel when it was sealed in the steel drum. Now the process is improved, the oil layer on the surface of the board is removed, and the sealing wheel can not be given a certain degree of lubrication. This requires us to consider increasing the service life of the sealing wheel, reducing the friction resistance of the sealing, improving the sealing quality, and correctly cooling the sealing wheel. lubricating. Since the steel drum rotates at high speed in the sealing machine and the sealing wheel descends, the steel drum is forced to squeeze the curling edge, and the sealing wheel produces high-speed friction and high temperature. At this time, the sealing wheel must be lubricated to improve the sealing quality and stabilize the product quality. To extend the service life of the sealing wheel.
Due to the special nature of the small-open steel drum, the airtight test must be done after the steel drum is sealed. When the steel drum is sealed, because the lubricating oil is applied to the sealing edge of the steel drum, the adhesion of the paint in the subsequent process, painting (painting) process and sealing curling edge is not met, then the steel drum is added. The degreasing treatment (cleaning treatment) is carried out at the sealing to meet the process requirements. To solve this process problem, in addition to the manual degreasing process, labor intensity is increased. Due to manual operation, it is not 100% qualified. Some coatings on the edge of steel drums still do not meet the process requirements. It is more difficult to meet the coating adhesion requirements.
Solve the problem of manual oil-lubricating curling wheel, and then solve the manual degreasing of the subsequent process to increase the adhesion of the coating at the edge of the steel drum.
There is no automatic spray lubrication system in the domestic steel drum sealing machine. We have added an automatic spray system to the sealing machine produced by Guangdong Xinhui. The working parts are: liquid energy storage tank - pneumatic valve -- Time relay - automatic spray gun and other components. The automatic spray crimping system solves the problem of selecting which lubricant to use as the crimping wheel after applying the lubricating process to the crimping wheel, and the next process does not need to manually remove the oil, which becomes a way of thinking and tries to use the metal. The processing lubrication coolant is used as a curling wheel lubricant (emulsion) for a period of time to fully meet the purpose of use.
The role of the emulsion:
1. Cooling effect: Since the steel drum curling wheel is at the bottom and cover of the steel drum, the curling of the barrel body is deformation of the extruded coil tube, forming a natural coil layer, at which time a high friction temperature is generated, and an appropriate amount of emulsion can be reduced. The temperature due to extrusion friction.
2. Lubrication: When the curling wheel is working, the barrel of the barrel, the bottom and the cover of the steel barrel are subjected to extrusion molding, and the emulsion can reduce the friction generated between the curling wheel and the surface of the coiled tube layer. Lubricating layer.
3, cleaning effect: the emulsion can be cleaned, due to rolling extrusion, the bottom of the barrel, the top, the barrel body seals form fine iron oxide, delaminated particles, the lubrication function of the emulsion, cleaning the steel barrel rolling squeeze Iron oxide particles produced when the tube is crimped.
4. Anti-rust effect: When the steel barrel is sealed, the curling edge is invaded by the moisture and corrosive medium in the air. If the chemical corrosion occurs, if it cannot be painted in time (painting), the bottom of the steel barrel and the top coil will be born. Rust, the emulsion has certain anti-rust properties.
In addition to the four main functions of cooling, lubrication, cleaning and rust prevention, the emulsion is water-based in the sealing process of the steel drum. After the steel drum is sealed, it does not need to be degreased. When the paint is very adaptable, the adhesion is 100% to meet the process requirements.
The emulsion is a water-based liquid, non-toxic, non-hazardous to humans, non-irritating, has a large heat dissipation, good cleaning properties, and economical use by dilution with water, which is conducive to the hygiene of the operation site. Safety.
After using the emulsion to lubricate, cool, rust and clean the steel drum crimping wheel, it has the following characteristics:
1. The surface roughness of the steel drum sheet during the coiling is improved, and the service life of the crimping sealing wheel is improved.
2. Improved on-site working conditions, reduced manual operation positions; changed the oil odor generated when the lubricating oil was squeezed and rubbed, and made the working environment meet the sanitary and safety conditions.
3. The cost of economic benefits has changed. In the past, three people were required to operate in this process and become unmanned (controlled by electrical appliances).
4. Changes in operating procedures have improved labor safety and hygiene conditions and requirements for fire safety conditions.
During the use of the emulsion, the emulsion can also be used in other production processes to change the conditions of use of the equipment. Extend the service life of equipment parts, reduce costs for enterprises, extend equipment life, reduce damage to equipment parts, and improve equipment parts cycle.
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