【咏隆化工】生产低价销售50吨液体长寿碱砂面剂 金属加工助剂

r rLiquid长寿碱（砂面）<< r

<< rCHD-109B<< r

<< rThe purpose of alkaline etching is to remove the residual grease and natural oxides on the surface of aluminum parts after degreasing, ensuring a uniform surface. In addition to achieving the purpose of an alkaline etchant, this product also accelerates the etching process, quickly eliminates scratches, and reduces aluminum loss to a certain extent. It can achieve a semi-sandbed or sandbed appearance in a short period of time.<< r

<< rQuality Standards<< r

<< rExternal ObserveColorless to yellow transparent liquid<< r

<< rSpecific Gravity20℃）: 1.2---1.25g/cm³<< r

<< r^{Content: ≥35%}<< r

<< r^{Complex Compound Content: ≥26%}<< r

<< r^{Total alkalinity: (measured as sodium hydroxide): ＞4.5%}<< r

<< r^{Grooved Ratio:}<< r

<< r^{For a 1 cubic meter tank, first add about half of the water to it. While stirring, slowly add 35 kilograms of sodium hydroxide and 10 kilograms of liquid长寿碱 (sand surface). Then dilute to 1 cubic meter and stir thoroughly until dissolved before use.}<< r

<< r^{Process Management:}<< r

<< r^{1,Sodium Hydroxide: 30-80g/l}<< r

<< r^{Temperature: 45-65°C}<< r

<< r^{Processing Time: 2-15 minutes}<< r

<< r^{2,Analyze once a day (producing approximately 10-15 tons of aluminum material), using the provided analysis method. Add the material according to the analysis results. For a tank of 1 cubic meter of liquid, adding 1 kilogram of sodium hydroxide will increase the concentration by 1g/L. This product should be added at a rate of 10-15% of the weight of the sodium hydroxide added.}<< r

<< r^{3,During use, the content of free sodium hydroxide should be adjusted appropriately according to the content of aluminum ions, in order to maintain a normal alkali erosion rate and prevent the formation of white precipitates. The content of sodium hydroxide should be close to the content of aluminum ions. When the content of aluminum ions is high, the content of free sodium hydroxide should not be low either.}<< r

<< r^{4,During normal use, the surface color of the tank liquid should be black-gray with some foam. If the surface color turns grayish-white and the foam disappears, it is necessary to immediately increase the amount of longevity alkali (sand surface) by 1-3g/l, and increase the content of free sodium hydroxide.}<< r

<< r^{5,It is important to maintain the temperature of the tank liquid. If the liquid temperature drops below the required process conditions, white precipitation may occur in the tank liquid. When there is a shutdown or temperature drop, special attention should be paid to maintaining the liquid temperature. The concentration of the product can be increased in advance.}<< r

<< r^Consumption:<< r

<< r^{For every ton of aluminum produced; 4—6 kilograms of longevity alkali (sand surface) are consumed.}<< r

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