Dongguan, Shenzhen accelerator

Product Description: SJ-206 accelerator One. Introduction SJ-206 is a novel phosphate promoting phosphate solution accelerators, and processing of steel, iron and other materials of zinc, zinc-manganese-based, zinc-calcium phosphate used in conjunction, can play a supporting steel surface completely and quickly generate a uniform, dense phosphate film role. II. Job criteria: management projects operating standards a bath concentration of 0.6-0.8% of the time (Time) 3-15 minutes accelerator (AC) 2-4 pt temperature (Temp) normal update cycle 2-4 months III. Equipment: coating the outer wall of the groove should be 316L or 304L stainless steel, thick-walled steel plate or PVC material (lining anti-corrosion lining) system. Four. Inspection doser: Drugs: indicator: phenolphthalein, titration solution: 0.1mol / l NaOH solution. Instrument: 50ml basic burette, 10ml pipette and suction ears ball, 200ml beaker. Five. Process: degreasing - → water (overflow washing) - → pickling - → and - → water (overflow) - → water (overflow) - → Table tune - → phosphate - → water (overflow) - → water (overflow) - → spray VI. Bath preparation (press 1 ton tank dollars): 1, eighty percent of water is added to the treatment tank; 2, joined SJ-206 zinc phosphate solution 60 ~ 80kg; 3, filled the balance of water, adding accelerant 6 -8 kg, and stir well; 4, can be used in the testing was to use a range of total acidity; VII. Measuring method: (1) Full acidity (TA): Take tank treatment liquid 10mL add phenolphthalein (PP) indicator 3-5 drops of 0.1N NaOH and then titrated by the non-color to pale pink, no 5-10 seconds fade, namely its end, a few milliliters of when the consumption of 0.1N NaOH, namely its degree of acidity of the whole. (2) free acid (FA): Take groove processing solution 10mL plus bromophenol blue (BPB) indicator 2-3 drops of 0.1N NaOH and then titrated color from light yellow to pale blue, not 5-10 seconds fade, namely its end, a few milliliters of when the consumption of 0.1N NaOH, namely its degree of acidity of the tour. (3) accelerator (AC): After taking the treatment liquid fermentation tube to 80% full, plus sulfanilic about 1-2 grams of powder left to ferment so that bottom of the tube immediately to restore the standing position, and then observed in the tube generate several milliliters of gas, is to promote the concentration of agents. VIII. Supplementary adjustment: use due to continuous consumption of accelerators, it should continue to add accelerator to keep it within the desired range. About 1-2kg per ton plus accelerator, may increase about 0.5 points, according to the coating thickness requirements to be adjusted to the range. IX. Storage: 1, the product 25L plastic drums, to prevent leakage. 2, the accelerator storage ambient temperature must not below 0 ℃, storage temperature 0 ~ 33 ℃. In a closed environment and cold stored for at least 2-3 years. X. Note: the value of the slot timing measurements per day 4-6 times to ensure that the standard range. Operators should bring rubber gloves, if the liquid touches the skin or eyes, rinse immediately with plenty of water, if necessary hospital treatment.