磷化工艺的配套设备
计算磷化槽的体积
根据工件的重量和面积计算磷化槽的体积，控制合理的产品面积和磷化液体积的比例，避免因为磷化不断的工作产生大量的二价铁离子，导致磷化液发黑，按常规来讲磷化槽体的单位体积的负荷量是3-15平方米每个立方，不可以超过258平方米每个立方，否则因为槽液负荷过大，磷化液里的重要成分消耗过快，促使磷化液不稳定，难于调整。
磷化槽的制造
磷化槽一般分为圆形槽和方形槽两大类，前面一种适合大批量的生产，后面这种适合与间歇式的生产。磷化槽所用的材质必须要能承受磷化液的腐蚀和耐高温，必须要有足够的强度能承受磷化液的载荷永远不变形。磷化槽*好要用4-8毫米的厚度的钢板，锰系磷化液温度比较高，一般在95度左右，溶液酸度高，选用不锈钢的，采用塑料槽的时候，要用8-14毫米的塑料板为好，有些磷化槽用水泥槽，里面放塑料板或者玻璃钢防腐蚀，这种磷化槽制作成本低，可以制造大型的磷化槽。
船型的磷化槽带有锥斗，便于收集磷化渣。锥斗可以排放在磷化槽的底部，也能在局部放置，底部应该设计成喷管，使磷化渣按照要求流到锥斗里面。
方形磷化槽底向排渣口倾斜，其倾斜坡度是4-8，在磷化槽倾斜的*低的地方应该设置排水管。
磷化槽体的体积一般是泵输出量的3-5倍。
Phosphating process of form a complete set of equipment
calculation of phosphating tank volume
According to the weight and area of the workpiece phosphating tank volume calculation, control and reasonable product area and the proportion of the phosphating liquid product, avoid because of phosphating work continuously produce large amounts of bivalent iron ion, lead to black phosphating liquid, according to the conventional phosphating tank of the solutions of load per unit volume is 3-15 square metre per cubic, can not be more than 258 square meters each cubic, or bath because the load is too large, important component in phosphating liquid consumption too fast, prompted the phosphating liquid is unstable, difficult to adjust.
phosphating tank manufacturing
Phosphating tank generally divided into two types: circular tank and the rectangular slot, in front of a suitable for mass production, the latter is suitable for the production and batch. Material must be used in the phosphating slot can withstand the corrosion of phosphating liquid and high temperature resistant, must have sufficient strength to withstand a load of phosphating liquid never deformation. Phosphating tank best with 4 to 8 mm thickness of steel plate, manganese phosphating liquid temperature is higher, generally around 95 degrees, solution acidity, selects the stainless steel, plastic tank, with 8 to 14 mm plastic board as well, some phosphating tank with the cement tank, inside put a plastic or glass fiber reinforced plastic anti-corrosion, the phosphating tank production costs low, can produce large phosphating slot.
Ship form phosphating slot with cone bucket, facilitate collection phosphating residue. Cone bucket can discharge in the phosphating slot at the bottom, also can be in local place, should be designed at the bottom of the nozzle, the phosphate slag flow in accordance with the requirements to the cone bucket.
Square phosphating tank bottom to the slag discharge mouth tilt, the slope gradient is 4 to 8, in the phosphating slot sloped drain pipe should be assigned to the lowest place.
Phosphating tank volume of general solutions for 3 to 5 times the pump output. |
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