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電泳槽陽極系統(tǒng)的設(shè)計中英對照版

1509 人參與 2012年02月08日 00:00 分類 : 電泳設(shè)備電泳設(shè)備工藝評論

?電泳槽陽極系統(tǒng)的設(shè)計中英對照版 Anodes??????????? 陽極

A cathode-to-anode ratio not greater that 4:1 is recommended with the immersed anode adjacent to the vehicle considered as the anode surface when flat plate or semi-circular anodes are used. This ratio is calculated with the following formula: Anode Area =(Vehicles/Minute x 2 Minutes x Surface Area/unit) / 4 建議陰極陽極比不能大于4:1，陽極表面是指當(dāng)陽極是平板或半循環(huán) 型時通過工件與車身相連的被浸沒的陽極部分。此比值用下列公式計算。陽極面積=（車身數(shù)/分x 2分x 表面積/車身）/4 Immersion times longer than two minutes do not require more anode area. The anodes should be spaced along each tank wall so that not less than 40% of the full-depth vertical wall contains anodes. In three-minute immersion tanks, anode placement should begin at the exit end of the tank and move forward. Anodes are usually not placed adjacent to the entering vehicle in a grounded power on entry system.? The typical distance before anodes is 1/2 -1 body lengths. 全浸沒時間長于2分鐘時不要求加大陽極面積。陽極應(yīng)沿各槽壁布置，深度不小于全浸段垂直槽壁深度的40%。在全浸3分鐘的槽中，陽極的排布要從出口端開始向前排，在接地電源的進入系統(tǒng)，陽極一般不放在與車體進口鄰近的地方。到陽極前的典型距離是1/2-1 個車廠。 A minimum of one cell gap should be maintained between electrical zones to prevent paint build-up on anodes in the lower voltage zone. If the voltage differential between the two zones exceeds 75 volts, a two-cell gap should be provided. For a differential voltage in excess of 100 volts, a three-cell gap is preferred.? A one-cell gap is sufficient for all systems if diodes are used to prevent feedback. 兩個電極端之間至少有一個極罩的間隙，以防止漆在電壓較低區(qū)和極罩上沉積，如果兩個極段之間電壓超過75 伏，要留出兩個極罩的間隙。電壓超過100伏，要留出三個極罩的間隙，如果用二極管防止回流，一個極罩的間隙就足夠了。 The anode should be constructed of 316L stainless steel, preferably, not less that 1/8-inch (32 mm.) thick. Normally, the anode dissolves slowly, its life somewhat dependent upon the production rate through the tank. Anode life expectancy is several years Provision for amperage monitoring of each cell should be included in the system design so that cell performance can be continuously observed. Cell condition and function information will then be available at all times; this design has worked well. Shunts or D.C. current transformers on each cell lead has worked well to monitor the cells. 陽極要用316L不銹鋼，厚度最好不小于1/8英吋（3.2cm），正常情況下，陽極緩慢溶解，其壽命取決于通過電泳槽的生產(chǎn)率。陽極的概率壽命可以達若干年，經(jīng)試驗涂覆有氧化釕成分的陽極使用壽命是不銹鋼陽極的數(shù)倍，但初期投資也比不銹鋼要多。系統(tǒng)設(shè)計時要為每個極罩配一個安培計，以便可連續(xù)觀察各極罩的運行情況。極罩狀況及操作數(shù)據(jù)將隨時可以得到。這種設(shè)計可做得很好，在各個極罩上連接的分流器或直流變壓器可很好的監(jiān)視每個極罩。

1.1.2.????????????? Roof Anodes

陽極頂蓋

Roof (or overhead) anodes made of 316L stainless steel are recommended for the second electrical zone to achieve a more uniform coating on the production unit. They can also be installed in the first zone, but are somewhat less effective due to the lower voltages. Pipe connections and joints below the paint surface degrade more? rapidly and, thus, should be avoided. Overhead anodes can be either bare pipe or fully enclosed flushable type.? Design and placement of roof anodes depend upon carrier design (see Figure 10). 建議用不銹鋼或氧化釕制成車頂蓋（或懸掛）陽極作為第二段電極以使工件獲得均勻的涂層。也可以將其裝在第一段電極上，但由于電壓較低效果往往不佳。在此區(qū)域氧化釕使用壽命相當(dāng)長，而在槽液表面下部的管子街頭及接點則剝蝕很快，要加以防治。車頂蓋陽極的設(shè)計及布置取決于吊具的設(shè)計（見圖10）。

Anolyte Cells

陽極罩 [caption id="attachment_307" align="alignnone" width="256" caption="電泳陽極"]

[/caption] Flat-plate, tubular and “C” cell anodes can be enclosed in flushable anode boxes made of non-conductive material, the open faces of which consist of ion-selective membranes (see Figure 11). 板狀及管狀陽極一般封閉在可沖洗的陽極罩中，極罩由不導(dǎo)電材料制成，敞開面裝有離子選擇性隔膜（見圖11）。 The anolyte system piping must be constructed of stainless steel or plastic

which will withstand an organic acid solution of pH 2.0 to 5.0. Each plate anode must be flushed at a rate of 1GPM/10ft²; inexpensive flow indicators should be installed to monitor the rate. If plastic pipes are used on the anolyte return, a stainless steel coupling should be installed on each cell to electrically ground the anolyte (to prevent electrical shock should the anolyte be touched).The anolyte system should be capable of controlling the conductivity of the anolyte solution within ±100 micromhos of the set point. The controller and meter should have a range of 0-10,000 micromhos (see Figure 12). The conductivity sensing cell for the anolyte tank should be located in the tank away from the anolyte return pipe. "Electrodeless" conductivity sensors (e.g., Foxboro 871 EC body code EV) work well for both the anolyte tank and the electrocoat tank.? All cells should be tested for leaks before a new tank is filled. Cells must have DI water in them at the time the tank is filled to prevent collapse of the membrane. Leaking or damaged cells should be immediately replaced. 陽極液系統(tǒng)管路必須用不銹鋼或塑料制成，要能耐pH 2.0-5.2 有機酸溶液，每快板狀陽極必須以1加侖/10平方尺的有效陽極面積的速率洗滌，要裝便宜的流量劑以監(jiān)視流量，如果極液返回管為塑料，則在每個極罩上裝一個不銹鋼連接器以將極液接地（防止接觸陽極時有電擊）。陽極系統(tǒng)要能控制陽極液電導(dǎo)率在設(shè)定點的±100us/cm內(nèi)?？刂破骷皟x器量程應(yīng)為0-10,000us/cm（見圖12）。陽極液槽及電泳槽用“無極型”電導(dǎo)率傳感器（如：Eoxboro 871 EC body code EV）時工作性能好。在新槽投料之前，所有極罩都要做滲漏試驗，在投槽時，極罩中必須有去離子水，以防隔膜破裂。極罩滲漏或損壞時應(yīng)立即更換。 [caption id="attachment_309" align="alignnone" width="455" caption="電泳槽陽極系統(tǒng)"]

[/caption]
The anolyte solution is flushed to drain at a pH of approximately 3. 0 with a conductivity of 400-1000 micromhos for 4^th generation products and 3000-6000 for 5^th generation; the effect of this discharge on the waste treatment system should be considered.? For 5^th generation products @10 gallons of anolyte to drain per 1000ft² of metal processed is normal. 當(dāng)陽極液PH值接近3，對第四代產(chǎn)品電導(dǎo)率為400-1000 us/cm，第五代產(chǎn)品電導(dǎo)率為3000-6000 us/cm時，要充分排放陽極液，這時要考慮到廢水的排放對系統(tǒng)的影響。第五代產(chǎn)品每1000英尺正常情況下應(yīng)排放陽極液約10加侖。

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