198 results about "Aluminum corrosion" patented technology

The invention discloses aluminum alloy semisynthesis cutting liquid and a preparation method thereof. The aluminum alloy semisynthesis cutting liquid is composed by weight of 12%-20% of mineral oil, 9%-15% of surfactant, 8%-12% of antirust agent, 1%-2% of aluminum corrosion inhibitor, 3%-7% of lubricant, 8%-12% of extreme pressure agent, 0.5%-1% of defoamer, 0.5%-1% of fungicide and the balance, water. The preparation method includes sequentially adding the surfactant, the antirust agent, the aluminum corrosion inhibitor, the lubricant, the extreme pressure agent, the defoamer, the fungicide and the water into the mineral oil and evenly stirring and mixing the mixture to obtain the aluminum alloy semisynthesis. The aluminum alloy semisynthesis cutting liquid has excellent performance on aluminum corrosion inhibition performance, corrosion resistance, lubricant performance, anti-rust performance, defoaming performance, use period and the like.

The invention relates to a method for making patterns on metal surfaces, which includes the steps as follow: blasting the metal surface twice with 120-mesh sand under the blast pressure of 2.0 to 2.5 Kgf / cm <2>; washing and oxidizing the ground metal surface; firstly corroding the ground metal surface by alkali and then processing in an electrolytic polishing way and than in an anodic oxidizing way, and then sealing holes; and corroding and oxidizing the metal surface, so that the metal surface which is not printed with photosensitive glue is corroded to obtain a metal surface with preset patterns. The method includes the corrosion process, the corrosive liquid washing, the anodic oxidizing process and the hole sealing, wherein the corrosion process uses sodium hydroxide and sodium nitrite solution and lasts 300 seconds to 500 seconds; degumming liquid is used for removing photosensitive glue; the anodic oxidizing process is carried out for 20 minutes to 30 minutes in sulfuric acid solution with the concentration of 150 to 250 g / l, at the temperature of 20 DEG C to 25 DEG C and the voltage of 13.5 V. The embodiment of the invention adopts the aluminum-corrosion secondary oxidizing process to obtain panels with patterns, thereby greatly improving the appearance effect of panels.

The invention discloses semi-synthesis cutting liquid for low-phosphorus chlorine-free non-formaldehyde aluminum alloy cutting processing and belongs to the technical field of metal processing mediums. The semi-synthesis cutting liquid is prepared from the following components in percentage by weight: naphthene base crude oil, an extreme pressure lubricant, an oily lubricant, an emulsifier, organic alcohol amine combination, a silicon-containing aluminum corrosion inhibitor, an anti-rust agent, a copper corrosion inhibitor, a sterilizing agent, a coupling agent, water and a defoaming agent. Due to adoption of the combination of the extreme lubricant and the oily lubricant, the lubricating ability of the cutting liquid and the surface smoothness of a workpiece are improved; due to adoptionof the alcohol amine combination, the alkali retaining ability and the pH stability of the cutting liquid and the stability of microorganisms are improved; due to adoption of the silicon-containing aluminum corrosion inhibitor, the aluminum corrosion inhibition performance of the aluminum alloy cutting liquid is realized; due to adoption of a bacteriostatic system, introduction of phosphorus is reduced, the alcohol ether bacteriostatic component is increased and the service life of the cutting liquid is prolonged; and due to adoption of the non-formaldehyde release type sterilizing agent, theadverse influence on a human body and the environment by the cutting liquid is reduced.

The invention relates to a water-soluble low oil mist antirust cutting liquid used for the ferrous and nonferrous metal heavy-duty cutting operation, and the preparation method thereof. The preparation method comprises the following steps: firstly, the low oil mist antirust cutting liquid is prepared; secondly, the low oil mist antirust cutting liquid is added in a reaction vessel as the base oil, and is mixed, heated and warmed up to 60 to 80 DEG C; and then 5 to 15 percent of emulsifying agent, 3 to 10 percent of water solubility phosphate ester and 0.5 to 2 percent of copper / aluminum corrosion inhibitor by the base oil wight are added in sequence; after the completion of feeding, the heating to the reaction vessel is stopped, and the mixed liquor is agitated continuously untill in the uniform and transparent state. The prepared cutting liquid is used after being diluted by adding water, is particularly suitable for metal drilling, threading, gear processing and other heavy-duty cutting operations, and has good extreme pressure lubricating property and anti-rust property. The production cost of the cutting liquid is low, the oil mist is extremely low when in use, and no penetrating odor exists.

The invention relates to a corrosion-resistant antiskid coating with an aluminum matrix composite structure and a preparation process thereof, belonging to the technical fields of surface treatment and marine corrosion prevention, wherein the coating is capable of being rapidly repaired after damage. The corrosion-resistant antiskid coating consists of a composite structure of a zinc-aluminum corrosion-resistant bottom layer and an aluminum / ceramic antiskid top layer and is prepared through the following steps: carrying out sand-blast treating on a matrix so as to allow the surface of the matrix to be free of attached foreign materials and have roughness; spraying zinc-aluminum powder onto the matrix so as to form the zinc-aluminum corrosion-resistant bottom layer which has a bonding strength of more than 15 MPa and a thickness of 150 to 250 mu m; and spraying aluminum / ceramic powder onto the zinc-aluminum corrosion-resistant bottom layer of the matrix so as to form the corrosion-resistant antiskid coating with the aluminum matrix composite structure, wherein the coating has a bonding strength of more than 15 MPa, a thickness of more than 200 mu m and a coefficient of friction with chloroprene rubber of more than 0.85. The preparation process is simple; the quality of the coating is good; spraying is easy to carry out; and the coating has good anticorrosion and antiskid performances and a long service life and can be easily and rapidly repaired.

Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

The invention provides a light resistance stripping method and a light resistance stripping device. The light resistance stripping method comprises the steps: 1, providing a substrate of a to-be-removed light resistance layer; 2, irradiating the to-be-removed light resistance layer by adopting ultraviolet light; 3, stripping light resistance on the surface of the substrate by using a light resistance stripping solution in a stripping groove; 4, after the light resistance stripping is completed, removing the light resistance stripping solution on the substrate by using an air knife on a buffer region; and 5, after the air knife blows, cleaning the light resistance stripping solution remained on the substrate on a washing tank. According to the light resistance stripping method, the aluminum corrosion and IGZO (Indium Gallium Zinc Oxide) corrosion in the light resistance stripping process can be maximally reduced, and the quality of a flat panel display is improved.

The invention belongs to the field of refractory materials and relates to a preparation method of a seepage-proof castable. The castable comprises the following raw materials by weight percent: 63-69wt% of alumina particles with sizes of 8-0mm, 18-21wt% of aluminium nitride fine powder with particle size less than 0.044mm, 4-7wt% of pure calcium aluminate cement with particle size less than 0.074mm and 5-6wt% of silicon dioxide micro powder with D90 equivalent to 0.1mu m. The castable is characterized in that a compound of BaSO4, TiB2, SrTiO3 and Na3AlF6 is adopted as a molten aluminum wetting resisting agent; the addition of the compound is 1-6wt%; 0.12% of sodium tripolyphosphate and 0.03% of sodium hexametaphosphate are added as dispersing agents; alumina sol serves as construction liquid. The prepared castable has enough strength, excellent thermal shock resistance and good volume stability and chemical stability, is mainly resistant to molten aluminum wetting, has good thermal stability, is resistant to molten aluminum corrosion, does not affect the components of molten aluminium and has long service life.