Economical and practical roller surface rust prevention method
By using a mixture of aluminum cleaning agent and rust-preventive oil to protect the surface of the rolls, the problems of rust and grinding fluid consumption during the roll grinding process were solved, thereby improving the surface quality and economic benefits of the rolls.
Patent Information
- Application Number
- CN202511895948.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-02-27
AI Technical Summary
The grinding process of rolls presents problems such as surface corrosion and high consumption of grinding fluid, which affect the quality and cost of roll grinding.
A grinding fluid is prepared by mixing aluminum cleaning agent with water, and a protective oil is prepared by mixing it with rust-preventive oil and guide rail hydraulic oil. This protective oil is applied to the surface of the milled rolls and then wrapped with kraft paper, replacing the traditional grinding fluid for protection.
It effectively prevents roll corrosion, significantly reduces grinding fluid consumption, improves roll surface quality, and reduces production costs, resulting in significant economic benefits.
Smart Images
Figure CN121572097A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of methods for preventing rust and corrosion on the surface of rolling mill rolls. Background Technology
[0002] During roll grinding, the high-speed cutting and rubbing of abrasive grains in the grinding zone generates extremely high temperatures. These temperatures often cause burning on the rolled surface and lead to severe wear of the grinding wheel, deteriorating the uniformity of the roll surface integrity. Therefore, grinding fluid must be injected into the grinding zone to reduce the grinding temperature. Because grinding fluid has lubricating, cooling, and cleaning functions, it is highly beneficial in improving grinding wheel wear, reducing clogging, and improving the surface roughness of the rolled surface after grinding. Therefore, ensuring the integrity of the ground surface and avoiding the frequent corrosion of rolling mill rolls during the rolling process places higher demands on grinding fluids. Summary of the Invention
[0003] The present invention aims to solve the technical problems of surface corrosion and high consumption of grinding fluid during the storage period after grinding of rolls, and provides an economical and practical method for preventing rust on the surface of rolls.
[0004] An economical and practical method for preventing rust corrosion on the surface of rolling mill rolls, the method comprising the following steps:
[0005] 1. Prepare a grinding fluid by mixing aluminum cleaning agent with water, and use the grinding fluid to grind the rolls;
[0006] 2. Prepare a protective oil by mixing rust-preventive oil with guide rail hydraulic oil;
[0007] 3. Scrape off the grinding fluid from the surface of the roller after grinding in step 1, and then evenly apply the protective oil obtained in step 2.
[0008] Fourth, the rollers are wrapped with kraft paper to complete the process.
[0009] Furthermore, the aluminum cleaning agent mentioned in step one is 330 aluminum cleaning agent.
[0010] Furthermore, in step one, the ratio of aluminum cleaning agent to water is (22~28) kg: 2000 L.
[0011] Furthermore, the grinding fluid described in step one should be cleaned and replaced monthly.
[0012] Further, in step one, the aluminum cleaning agent is mixed with water and stirred in a circulating manner for 30 minutes to prepare the grinding fluid.
[0013] Furthermore, the rust-preventive oil mentioned in step two is 009 rust-preventive oil.
[0014] Furthermore, the guide rail hydraulic oil mentioned in step two is HG68 guide rail hydraulic oil.
[0015] Furthermore, in step two, the volume ratio of the rust-preventive oil to the guide rail hydraulic oil is 1:1.
[0016] Furthermore, in step three, a scraper is used to clean the grinding fluid from the surface of the roll.
[0017] Furthermore, in step three, a protective oil is evenly applied to the roll surface using a roller brush.
[0018] Beneficial effects of this invention:
[0019] Previously, grinding machine rolls frequently corroded, resulting in huge consumption of grinding fluid and poor performance. After using aluminum cleaning fluid, roll corrosion was virtually eliminated, and grinding fluid consumption was significantly reduced.
[0020] This invention innovatively utilizes an aluminum cleaning agent to replace conventional grinding fluid for grinding aluminum rolling mill rolls, achieving simultaneous improvement in surface quality and economic benefits. It closely aligns with actual production needs, is simple to operate, and yields significant results. By using A330 aluminum cleaning fluid instead of the conventional A900 rolling mill grinding fluid, the grinding quality of the rolls is stabilized, and the cost of grinding the rolls is significantly reduced.
[0021] The method of this invention has a significant effect on preventing rust on the rolls, ensuring that the rolls will not rust for at least half a month.
[0022] This invention uses a formulated protective oil to coat the surface of the roller after grinding, which prevents the new roller from rusting and significantly reduces grinding costs.
[0023] This invention saves more than 3,000 yuan per month in cleaning and replacing the grinding machine water tank. If the consumption of rollers, grinding wheels, etc. caused by repeated grinding due to rust on the rollers before use is taken into account, the economic benefit is roughly estimated to be at least 10,000 yuan.
[0024] The method of this invention is used in the field of rust prevention on the surface of rolling mill rolls. Attached Figure Description
[0025] Figure 1 The images show a comparison of the roll surface before and after using the method described in the embodiments. The left image is a photograph of the rusted surface of the roll before using the method described in the embodiments, and the right image is a photograph of the roll surface after using the method described in the embodiments. Detailed Implementation
[0026] Specific Implementation Method 1: This implementation method provides an economical and practical method for preventing rust corrosion on the surface of rolling mills. The method is carried out according to the following steps:
[0027] 1. Prepare a grinding fluid by mixing aluminum cleaning agent with water, and use the grinding fluid to grind the rolls;
[0028] 2. Prepare a protective oil by mixing rust-preventive oil with guide rail hydraulic oil;
[0029] 3. Scrape off the grinding fluid from the surface of the roller after grinding in step 1, and then evenly apply the protective oil obtained in step 2.
[0030] Fourth, the rollers are wrapped with kraft paper to complete the process.
[0031] This invention innovatively utilizes an aluminum cleaning agent to replace conventional grinding fluid for grinding aluminum rolling mill rolls, achieving simultaneous improvement in surface quality and economic benefits. It closely aligns with actual production needs, is simple to operate, and yields significant results. By using A330 aluminum cleaning fluid instead of the conventional A900 rolling mill grinding fluid, the grinding quality of the rolls is stabilized, and the cost of grinding the rolls is significantly reduced.
[0032] This invention saves more than 3,000 yuan per month in cleaning and replacing the grinding machine water tank. If the consumption of rollers, grinding wheels, etc. caused by repeated grinding due to rust on the rollers before use is taken into account, the economic benefit is roughly estimated to be at least 10,000 yuan.
[0033] Specific Implementation Method Two: This implementation method differs from Specific Implementation Method One in that the aluminum cleaning agent mentioned in step one is 330 aluminum cleaning agent. Everything else is the same as in Specific Implementation Method One.
[0034] Specific Implementation Method 3: This implementation method differs from Specific Implementation Method 1 or 2 in that the ratio of aluminum cleaning agent to water in step 1 is (22~28) kg: 2000 L. Everything else is the same as in Specific Implementation Method 1 or 2.
[0035] Specific Implementation Method Four: This implementation method differs from Specific Implementation Methods One to Three in that the grinding fluid described in Step One is cleaned and replaced monthly. Everything else is the same as in Specific Implementation Methods One to Three.
[0036] Specific Implementation Method Five: This implementation method differs from Specific Implementation Methods One to Four in that: in step one, the aluminum cleaning agent is mixed with water and then circulated and stirred for 30 minutes to prepare the grinding fluid. Everything else is the same as in Specific Implementation Methods One to Four.
[0037] Specific Implementation Method Six: This implementation method differs from Specific Implementation Methods One to Five in that the rust-preventive oil mentioned in step two is 009 rust-preventive oil. Everything else is the same as in Specific Implementation Methods One to Five.
[0038] Specific Implementation Method Seven: This implementation method differs from Specific Implementation Methods One to Six in that the guide rail hydraulic oil mentioned in step two is HG68 guide rail hydraulic oil. Everything else is the same as in Specific Implementation Methods One to Six.
[0039] Specific Implementation Method Eight: This implementation method differs from Specific Implementation Methods One to Seven in that the volume ratio of the rust-preventive oil to the guide rail hydraulic oil in step two is 1:1. Everything else is the same as in Specific Implementation Methods One to Seven.
[0040] Specific Implementation Method Nine: This implementation method differs from Specific Implementation Methods One to Eight in that: in step three, a scraper is used to clean the grinding fluid from the surface of the roll. Everything else is the same as in Specific Implementation Methods One to Eight.
[0041] Specific Implementation Method Ten: This implementation method differs from Specific Implementation Methods One to Nine in that: in step three, a roller brush is used to evenly apply protective oil to the roll surface. Everything else is the same as in Specific Implementation Methods One to Nine.
[0042] The scope of this invention is not limited to the above-described embodiments; a combination of one or more specific embodiments can also achieve the purpose of the invention.
[0043] Example:
[0044] An economical and practical method for preventing rust corrosion on the surface of rolling mill rolls, the method comprising the following steps:
[0045] 1. Mix 330 aluminum cleaning agent with water at a ratio of 25kg:2000L, circulate and stir for 30 minutes to prepare grinding fluid, and use the grinding fluid to grind the rolls; change the water in the grinding machine water tank once a month in the middle of the month;
[0046] 2. Prepare a protective oil by mixing 009 rust-preventive oil and HG68 guide rail hydraulic oil at a volume ratio of 1:1.
[0047] 3. Use a squeegee to scrape off the grinding fluid from the surface of the roll after grinding in step 1, and then use a roller brush to evenly apply the protective oil obtained in step 2 to the roll surface.
[0048] Fourth, the rollers are wrapped with kraft paper to complete the process.
[0049] In this embodiment, the cost of rolling mill grinding is significantly reduced. If grinding fluid is used, the grinding machine needs to be changed once a week on average, with 25 kg of 900 g of grinding fluid added each time. Approximately 8 barrels of grinding fluid and 8 cubic meters of water are consumed per month.
[0050] Figure 1 The images show a comparison of the roll surface before and after using the method described in the embodiments. The left image is a photograph of the rusted surface of the roll before using the method described in the embodiments, and the right image is a photograph of the roll surface after using the method described in the embodiments.
[0051] In this embodiment, after using 330 aluminum cleaning agent, the water is changed once a month, consuming about 25kg of cleaning agent in approximately 2 barrels and 2 cubic meters of water.
[0052] The price of 900 rolling mill grinding fluid is 495 yuan / barrel, and the price of 330 aluminum cleaning agent is 468 yuan / barrel. This directly saves 495×8-468×2=3024 yuan per month. If the consumption of rolling mills, grinding wheels, etc. caused by repeated grinding due to rolling mill corrosion before use is included, the economic benefit is roughly estimated to be at least 10,000 yuan.
[0053] After adopting this method, a factory has not experienced any roll corrosion for six months since June 2025.
Claims
1. An economical and practical method for preventing rust corrosion on the surface of rolling mill rolls, characterized in that... This method is performed in the following steps:
1. Prepare a grinding fluid by mixing aluminum cleaning agent with water, and use the grinding fluid to grind the rolls; 2. Prepare a protective oil by mixing rust-preventive oil with guide rail hydraulic oil; 3. Scrape off the grinding fluid from the surface of the roller after grinding in step 1, and then evenly apply the protective oil obtained in step 2. Fourth, the rollers are wrapped with kraft paper to complete the process.
2. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... The aluminum cleaning agent mentioned in step one is 330 aluminum cleaning agent.
3. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... Step 1: The ratio of aluminum cleaning agent to water is (22~28) kg: 2000 L.
4. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... The grinding fluid described in step one should be cleaned and replaced monthly.
5. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... Step 1: Mix aluminum cleaning agent with water and circulate and stir for 30 minutes to prepare grinding fluid.
6. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... The rust-preventive oil mentioned in step two is 009 rust-preventive oil.
7. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... The guide rail hydraulic oil used in step two is HG68 guide rail hydraulic oil.
8. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... The volume ratio of the rust-preventive oil to the guide rail hydraulic oil in step two is 1:
1.
9. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... Step 3: Use a scraper to clean the grinding fluid from the surface of the rolls.
10. The economical and practical method for preventing rust on the surface of a rolling mill according to claim 1, characterized in that... Step 3: Apply protective oil evenly to the roll surface using a roller brush.