Manufacturing Method of Aluminum Silver Paste
I. Introduction
Aluminum silver paste is an important raw material for the production of chemicals, which is widely used in the fields of coatings, inks, plastics, etc. Because of its excellent metallic luster and covering power, it can give products a good appearance effect. This article will introduce the manufacturing method of aluminum silver paste in detail, including raw material preparation, production process, product quality control and other aspects.
II, raw materials preparation
1. Aluminum powder: choose high purity, particle size appropriate aluminum powder as raw materials, to ensure that it has good activity and dispersion.
2. Solvent: choose the solvent with good compatibility with aluminum powder and moderate volatility, such as alcohols, esters and so on.
3. Additives: according to the actual needs, can choose dispersants, wetting agents, stabilizers and other additives to improve the stability and dispersion of aluminum silver paste.
3. Production process
1. Dosing: add aluminum powder, solvent and additives into the high-speed dispersion equipment according to a certain ratio.
2. Dispersing: In the high-speed dispersing equipment, the mixture is fully stirred and dispersed, so that the aluminum powder is evenly dispersed in the solvent to form a stable slurry.
3. Grinding: Send the slurry into grinding equipment such as sand mill or bead mill for further refinement to improve the fineness and gloss of aluminum silver paste.
4. Filtration: Remove the impurities and coarse particles in the slurry through the filtration equipment to ensure the product quality.
5. Packing: Put the filtered aluminum silver paste into sealed containers for packing.
Four, product quality control
1. Testing physical properties: test the fineness, viscosity, metallic luster and other physical properties of aluminum silver paste to ensure that it meets the relevant standards.
2. Chemical analysis: chemical analysis of the components in the aluminum silver paste to ensure that the content of each component is within the specified range.
3. Stability test: carry out long-term storage stability test for aluminum silver paste, observe whether there is delamination, precipitation and other phenomena to ensure product quality.
V. Precautions
1. In the production process, the operating conditions of each process should be strictly controlled to ensure stable product quality.
2. For different types of aluminum silver paste, the production process and formula should be adjusted according to the actual needs to meet the application requirements in different fields.
3. In the process of storage and use, attention should be paid to keep the conditions of sealing, drying and avoiding light to prevent the performance of aluminum silver paste from being affected.
6. Conclusion
The manufacturing method of aluminum silver paste involves the control of several links and process parameters, in order to ensure product quality, it is necessary to make comprehensive considerations from the preparation of raw materials, production process, product quality control and other aspects. Through the manufacturing method introduced in this paper, aluminum silver paste with high metallic luster, good dispersibility and stability can be produced to meet the application requirements in different fields.
