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100% Original Graham Job - Liquid and solid Middle Temperature Sealing Additive for anodizing – ZheLu


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Foshan Zhelu has the most advanced aluminum extrusion process in China, as a service company or solution company, we can help any aluminum plant to solve the current problems, or provide the most complete product service, we can give China's most advanced casting and extrusion process. Extrusion Rod, Dies For Aluminium Extrusion, Foil Wrappers For Chocolate Bars, Refractory materials needed: heat storage balls, castables, refractory bricks, aluminum silicate cotton plates, plug heads, launder structures, ceramic foam filter plates, filter boxes, manifold plates, conduits, adapter plates, graphite rings, crystallizers.
100% Original Graham Job - Liquid and solid Middle Temperature Sealing Additive for anodizing – ZheLu Detail:

1. Determine the concentration of Nieveryday, make it fluctuates narrowly.

2. Regulate the pH by adding FL-09(liquid) or dilute acetic acid,keep pH value between 5.3 and 6.5.

3. The heating pipes should be fixed on the internal wall of bath not at the bottom,otherwise the precipitations will cover the device that would affect the heating ffect and not convenient to clean the precipitations.

4. For reducing the pollution of the rinsing bath solution, control the water quality and pH of the rinsing bath strictly, the pH can not less than 4.5.

Middle Temperature Sealing Additive is sealed with polybag, 5kg net each and 4 polybags in carton,20kg net each.Protected from light in a dry place.

Low temperature polishing sink–assay method
Required reagents: 1N NaOH standard solution ②1% phenolphthalein indicator ③ Potassium

Determination of nickel ion (Ni2+) content
1. Assay steps.
Accurately draw 10mL of the sink liquid into a 250mL triangular beaker, add 50mL of water, 10mL (pH=10) of chloramine buffer, a small amount of 1% violetine, and shake well. Titrate with 0.01mol/L EDTA standard solution until the solution changes from yellow to purple as the end point, and record the consumption volume V.

2. Calculation: Nickel(g/L)=5.869 × V × C
V: the volume of EDTA standard solution consumed in milliliters (mL)
C: molar concentration of EDTA standard solution (mol/L)

Determination of fluoride ion (F-) content
1. Preparation of F- standard solution
① Standard solution with F- concentration of 5g/L: Accurately weigh 11.0526g NaF (Analytical Reagent, dry in an oven at 120°C for 2h, store in a desiccator with a weighing bottle for use, accurate to 0.0001g when weighing) to dissolve In a small amount of distilled water, transfer to a 1000mL volumetric flask, dilute to the mark, and shake well.

② Standard solution with F- concentration of 0.1g/L: Pipette 10mL of the standard solution with F- concentration of 5g/L in the above volumetric flask into a 500mL volumetric flask, dilute to the mark, and store in a polyethylene bottle.

③ Prepare standard solutions with F- concentrations of 0.2-1 g/L as described above.
2. Preparation of Total Ionic Strength Adjusting Buffer Solution (TISAB)
Take about 500mL of distilled water and put it in a 1L clean glass beaker, add 57mL of glacial acetic acid, and then add 58.5g of sodium chloride and 12g of sodium citrate to fix and dissolve completely, and then use analytically pure sodium hydroxide to adjust to pH=5.0~5.5, dilute to 1L with distilled water.

2. F- Standard curve drawing
① Pipette 2mL of standard solution with a concentration of 0.1g/L into a 100mL plastic beaker, then add 20mL TISAB buffer solution, put in a magnet, stir on a magnetic stirrer, insert oxygen electrode and reference electrode respectively, After electromagnetic stirring for 3min, stand for 30s, and read the equilibrium potential Ex;

②Use the same method to measure the potential value Ex of the standard solution whose F concentration is 0.2~1g/L, and sort the concentration from low to high. On the graph paper, draw the E-F standard curve with the potential E as the ordinate and the F concentration as the abscissa.

Accurately pipette 20mL of the sink liquid into a 100mL beaker, add 20mL of total ionic strength buffer (TISAB), stir on a magnetic stirrer for 3min, and directly measure the potential difference mv with a fluorine electrode. Find the corresponding fluorine content m in the fluorine content-potential difference standard electrode diagram.

Middle Temperature Sealing Additive

Nickel ion

PH

temperature

0.8-1.4g/L

5.3 ~ 6.5

60±5℃


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Foshan Zhelu Trading Co., Ltd. is a one-stop service company engaged in aluminum casting, extrusion,powder coating and anodizing production lines, saving time and effort for customers. 100% Original Graham Job - Liquid and solid Middle Temperature Sealing Additive for anodizing – ZheLu , The product will supply to all over the world, such as: Croatia, Eindhoven, Boston, Foshan Zhelu is always Contributing to the achievement of carbon neutrality goals in the non-ferrous metal industry.
  • The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
    5 Stars By Michelle from British - 2018.10.31 10:02
    The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
    5 Stars By Michaelia from Armenia - 2017.11.01 17:04