高精纯黑色膜处理

高精纯黑色膜处理

来源:东莞市华宇五金膜层处理厂  作者: 盘先生

ph phosphating of phosphating film in liquid iron ionconcentration is too low, so the required ph. instead, the ironions content is higher, the less acid alkaline. use high manganeseseries phosphating solution of free acid ph control is very simple,such as acid, alkali is 1 then free acid is 0.1. explore acidalkaline reaction of manganese series phosphating solution, resultsshowed that nitrate content of 0.5, when ph 5 said passivationreaction, passivation membrane. acid alkali is 2, the film is acomplex of phosphating film and passivation film, the nitratecontent, the greater the phosphating film area is larger, when theacid alkali is 3, phosphating film formed, so the department ofhigh manganese phosphating liquid acid alkaline 2.5 is best. thetemperature whether can for the production of theuid and phosphating film, temperature is an important one of thereasons, and temperature on the efficiency of the phosphating filmand phosphating effect is very obvious. suitable temperature cannot only make the iron in the melting of the anode region and ironphosphate reaction, shorten the time of the phosphating filmformation. can also activate a region of low ability, forming theactivation center the crystal increase , and formthe crystallization speed, at the time of reaction and generation,the center of the large crystal havent fully grown, and have newcrystals begin to produce. meticulous crystallization density,phosphating film closely, thickening of the thickness of thephosphating film, enhanced corrosion resistance, low temperaturephosphating film formed of the phosphating liquid content of lessthan, cant complete phosphating film production. temperature is toolarge, which leads to the separation of components can bedissolved, separating out large amounts of zinc ion and phosphateion, makes a lot of phosphate rapid separation, produce largeamounts of sediment, losing the original dynamic e,liquid at room temperature is too high, not only affect the changeof acid ratio, and reaction speed too fast, the phosphating filmcrystallization bulky, void ratio is too large, produce phosphatingphosphating film residue super weight, corrosion resistance is low,influence the luster of the coating, and bath stability.  

东莞市华宇表面磷化膜处理厂主营高难度表面锰系磷酸盐磷化处理、抗防锈机械灰黑磷化处理、抗蚀性金属铁系磷酸盐磷化、耐磨性零件浅黑色磷化处理。咨询 5030

东莞市锌磷化处理厂

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phosphating process of form a complete set of e calculationof phosphating tank volume according to the weight and area of theworkpiece phosphating tank volume calculation, control andreasonable product area and the proportion of theuid product, avoid because of phosphating work continuouslyproduce large amounts of bivalent iron ion, lead to blackphosphating liquid, according to the conventional phosphating tankof the solutions of load per unit volume is 3-15 square metre percubic, can not be more than 258 square meters each cubic, or bathbecause the load is too large, important component inuid consumption too fast, prompted the phosphating liquid isunstable, difficult to adjust. phosphating tank manufacturingphosphating tank generally pided into two types: circular tank andthe rectangular slot, in front of a suitable for mass production,the latter is suitable for the production and batch. material mustbe used in the phosphating slot can withstand the corrosion ofphosphating liquid and high temperature resistant, must havesufficient strength to withstand a load of phosphating liquid neverdeformation. phosphating tank best with 4 to 8 mm thickness ofsteel plate, manganese phosphating liquid temperature is higher,generally around 95 degrees, solution acidity, selects thestainless steel, plastic tank, with 8 to 14 mm plastic board aswell, some phosphating tank with the cement tank, inside put aplastic or glass fiber reinforced plastic anti-corrosion, thephosphating tank production costs low, can produce largephosphating slot. ship form phosphating slot with cone bucket,facilitate collection phosphating residue. cone bucket candischarge in the phosphating slot at the bottom, also can be inlocal place, should be designed at the bottom of the nozzle, thephosphate slag flow in accordance with the re to the conebucket. square phosphating tank bottom to the slag discharge mouthtilt, the slope gradient is 4 to 8, in the phosphating slot slopeddrain pipe should be assigned to the lowest place. phosphating tankvolume of general solutions for 3 to 5 times the pump output.
 

专业提供高难度、高精密的蜗轮蜗杆组合减速器、五金冲压件产品磷化处理,防锈磷化膜,纯锰磷化处理,黑色磷化处理，灰色膜层处理,磷酸盐皮膜处理等五金表面处理加工服务,服务于万江区,东莞,石碣,茶山,樟木头,横沥等地

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