CN103276388A - Device and method for online monitoring and automatic supplementation of phosphating solution - Google Patents
Device and method for online monitoring and automatic supplementation of phosphating solution Download PDFInfo
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- CN103276388A CN103276388A CN201310188232XA CN201310188232A CN103276388A CN 103276388 A CN103276388 A CN 103276388A CN 201310188232X A CN201310188232X A CN 201310188232XA CN 201310188232 A CN201310188232 A CN 201310188232A CN 103276388 A CN103276388 A CN 103276388A
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Abstract
The invention provides a device and a method for online monitoring and automatic supplementation of a phosphating solution. A condenser and a sampling pump are sequentially connected between a working groove and a measuring tank through a pipeline; the measuring tank is internally provided with a total phosphorus analyzer and a sampling opening of an iron ion analyzer; a pH (Potential of Hydrogen) probe and a temperature sensor are connected with the measuring tank; the working groove is respectively connected with a sodium hydroxide groove and a concentration solution groove through a first metering pump and a second metering pump; a pH meter, the total phosphorus analyzer, the first metering pump, the second metering pump, an alarming lamp, a touch screen and a control module are electrically connected; and the condenser is connected with circulating water. Working ranges and adding procedures of a free acid, a total acid, an acid proportion and a ferrous ion concentration are set to convert actually-measured pH values and total phosphorus values into free acid and total acid points; after the free acid and total acid points are compared with pre-set values, the online monitoring and the automatic supplementation are realized and production recording can be automatically finished; and the device and the method disclosed by the invention are good for product quality management and tracing, guaranteeing the stability of the quality of products, improving the labor efficiency and improving the labor environment of workers.
Description
Technical field
The present invention relates to the technical field of metallic surface pre-treatment, refer in particular to the phosphatization liquid on-line monitoring in the phosphating process and the automatic device and method that replenishes in the pre-treatment of metallic surface.
Background technology
Phosphatization is the process that a kind of chemistry and electrochemical reaction form the phosphate chemical conversion film, and formed phosphate conversion film is referred to as phosphatize phosphate coat.The purpose of phosphatization mainly is: provide protection to matrix metal, prevent that to a certain extent metal is corroded; Be used for feeling secure before the japanning, improve sticking power and the anti-corrosion capability of paint film layer; In the metal cold machining process, play antifriction, the lubricated use.
In bonderizing, along with the increase for the treatment of capacity, phosphatization work tank liquor processing power can descend.When phosphatization work tank liquor processing power descended, traditional method was: rule of thumb, and the artificial disposable concentrated solution that adds in proportion.Pass through chemistry titration then, the free acid of testing tank liquor, total acid, acid are compared etc., the ferrous ion concentration index, and control is in processing range.This disposable replenishment method, the deviation when making the index such as free acid, total acid, promotor of work tank liquor and optimum Working is bigger, causes the instability of quality product easily; Because class's output is inconsistent, also be easy to generate the instability of quality product; Workman and reviewer's labour intensity is big, and work situation is poor, the labor cost height.
Summary of the invention
The invention provides a kind of can be at the free acid of monitoring phosphatization work tank liquor, total acid, acid than, iron concentration, and according to the variation of above index, replenish the device and method of phosphatization liquid automatically.
A kind of phosphatization liquid on-line monitoring and the device that replenishes automatically comprise work nest, are connected to condenser, sampling pump successively by pipeline between work nest and measuring cell; PH probe, temperature sensor are connected to measuring cell, and it is characterized in that: the thief hole of total phosphorus analyser, iron ion analyser is arranged in the measuring cell, and work nest is connected with volume pump No. one, and the other end tipping of a volume pump has sodium hydroxide tank; Work nest is connected with volume pump No. two, and the other end of No. two volume pumps is connected to concentrated liquid bath; Sampling pump, PH meter, total phosphorus analyser, iron ion analyser, one, No. two volume pump are connected to control module by circuit; Condenser connects recirculated water.
Improvement to such scheme is: control module is connected with warning light.
A kind of phosphatization liquid on-line monitoring and the method for replenishing automatically is characterized in that:
1, prepares reference liquid, determine the funtcional relationship of pH value, total phosphorus value and free acid, total acid, set the working range of free acid, total acid, acid ratio, ferrous ion concentration and add rules;
2, pH value and the temperature of PH probe and temperature sensor measurement phosphatization liquid, total phosphorus analyser and iron concentration analyser analyzing total phosphorus content and ferrous ion content are passed to control module with the result;
3, control module is compared by digital computation with set(ting)value, determines addition manner or warning according to rules;
4, control module record, statistic data are drawn every index--time curve automatically, list error log, and adjust certainly.
Beneficial effect:
The present invention can be implemented in line and detects phosphatization liquid and replenish concentrated solution automatically, automatically finish record of production, be beneficial to product quality management and review, the technic index of phosphatization work tank liquor is controlled in less fluctuation range, guaranteed the stable of quality product, improve efficiency, improved workman's work situation.
Description of drawings
Fig. 1 is system's control principle block diagram.
Fig. 2 is parameter Detection ﹠ Controling logical diagrams.
Fig. 3 is the online detection of phosphatization liquid and auto-feeding device interface chart.
The 1st, work nest, the 2nd, Controlling System and touch-screen, the 3rd, total phosphorus analyser, the 4th, PH meter, the 5th, iron ion analyser, the 6th, PH probe, the 7th, temperature sensor, the 8th, sampling pump, the 9th, measuring cell, the 10th, condenser, the 11st, the circulation mouth of a river, the 12nd, pipeline, 13 is volume pumps, and 14 is No. two volume pumps, the 15th, concentrate liquid bath, the 16th, sodium hydroxide tank, the 17th, circuit, the 18th, warning light.
Embodiment
The present invention as shown in Figure 1, 2, 3.
Understand for technical characterictic of the present invention, purpose, effect being had more clearly, now contrast accompanying drawing 1,2,3 and elaborate.
A kind of phosphatization liquid on-line monitoring and the device that replenishes automatically comprise work nest 1, are connected to condenser 10, sampling pump 8 successively by pipeline 12 between work nest 1 and measuring cell 9; The thief hole that total phosphorus analyser 3, iron ion analyser 5 are arranged in the measuring cell 9, PH probe 6, temperature sensor 7 are connected to measuring cell 9; The other end tipping that work nest 1 is connected with 13, numbers volume pumps 13 of a volume pump has sodium hydroxide tank 16; The other end that work nest 1 is connected with 14, No. two volume pumps 14 of No. two volume pumps is connected to concentrated liquid bath 15; Sampling pump 8, PH meter 4, total phosphorus analyser 3, iron ion analyser 5, one, No. two volume pump 13,14 are connected to control module and touch-screen 2 by circuit 17; Condenser 10 connects the circulation mouth of a river 11, and control module 2 is connected with warning light 18.
This example is selected a kind of zinc phosphide liquid for use, and its processing parameter control index is free acid 5-9 point, total acid 65-120 point, phosphatization temperature 65 degree.
Concrete enforcement is as follows:
1, demarcates
According to the different ingredients of this manufacturer preparation standard phosphatization liquid, the Y trip of counting of chemistry titration, free acid
On=9.0, Y trip
Down=5.0;
The total acid Y that counts is total
On=120.0, Y is total
In=100.0, Y is total
Down=65.0;
The PH instrumentation must this reference liquid pH value X trip
On=1.05, X trip
Down=1.43;
It is total that the total phosphorus detector records the total phosphorus X of this reference liquid
On=5.00, X is total
In=3.00, X is total
Down=1.50.
Open the control module interface, in Controlling System input X trip
On=1.06, X trip
Down=1.45; The Y trip
On=9.2, Y trip
Down=5.2; Get D=-10.26, E=20.01;
X is total in input
On=5.00, X is total
In=3.00, X is total
Down=1.50; Y is total
On=120.0, Y is total
In=100.0, Y is total
Down=65.0; Solve A=-4.21, B=43.68, C=8.95;
Set free acid working value 7.0, total acid working value 100.0, acid is than 1:(11-16), ferrous ion concentration 2.00.When free acid value greater than 7.0 the time, start No. one volume pump, add sodium hydroxide; When total acid value less than 100 the time, start No. two volume pump, add concentrated solution; Compare not in scope when acid, start one, No. two volume pump, add in proportion.
2, sampling
Sampling pump is opened in the condenser water flowing, and the phosphatization working fluid is through condenser, to measuring cell.
3, measure
Measure pH value 1.25, total phosphorus value 3.57, ferrous ion concentration 0.8 are transported to man-machine interactive system through signal wire, and process calculates free acid 7.19, total acid 111.2, acid than 15.47, and shows.
4, comparison
Expert systems all in processing range, does not start volume pump and adds concentrated solution with observed value and set(ting)value comparison, free acid, total acid, acid ratio, ferrous ion concentration.
5, add
If free acid height, total acid are low, acid is than on the low side, can give the frequency transformer signal according to the man-machine interactive system data, start volume pump in proportion, and record time quantum and the stroke amount of each volume pump, the accumulative total addition.
If the free acid height, total acid is suitable, can start volume pump separately No. one, hydro-oxidation sodium.
If total acid is low, free acid is suitable, can start volume pump separately No. two, with concentrated solution.
If ferrous ion concentration is higher than set(ting)value, system alarm.Etc. pending.The artificial hydrogen peroxide that adds, precipitation, stand-by.
6, production management
Accumulative total per tour concentrated solution addition.Record deviation time and deviation data.Automatically generate every index curve and form weekly.
Claims (3)
1. a phosphatization liquid on-line monitoring and the automatic device that replenishes comprise work nest, are connected to condenser, sampling pump successively by pipeline between work nest and measuring cell, and PH probe, temperature sensor are connected to measuring cell; It is characterized in that: the thief hole of total phosphorus analyser, iron ion analyser is arranged in the measuring cell, and work nest is connected with volume pump No. one, and the other end tipping of a volume pump has sodium hydroxide tank; Work nest is connected with volume pump No. two, and the other end of No. two volume pumps is connected to concentrated liquid bath; Sampling pump, PH meter, total phosphorus analyser, iron ion analyser, one, No. two volume pump are connected to control module by circuit; Condenser connects recirculated water.
2. a kind of phosphatization liquid on-line monitoring according to claim 1 and the device that automatically replenishes, it is characterized in that: control module is connected with warning light.
3. a phosphatization liquid on-line monitoring and the method for replenishing automatically is characterized in that:
(1), the preparation reference liquid, determine the funtcional relationship of pH value, total phosphorus value and free acid, total acid;
Set the working range of free acid, total acid, acid ratio, ferrous ion concentration and add rules;
(2), pH value and the temperature of PH probe and temperature sensor measurement phosphatization liquid, total phosphorus analyser and iron concentration analyser analyzing total phosphorus content and ferrous ion content are passed to control module with the result;
(3), control module by digital computation and with set(ting)value comparison, determine addition manner or warning according to rules;
(4), control module record, statistic data, draw each index--time curve automatically, list error log, and adjust certainly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310188232XA CN103276388A (en) | 2013-05-21 | 2013-05-21 | Device and method for online monitoring and automatic supplementation of phosphating solution |
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| CN201310188232XA CN103276388A (en) | 2013-05-21 | 2013-05-21 | Device and method for online monitoring and automatic supplementation of phosphating solution |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001686A (en) * | 2014-05-22 | 2014-08-27 | 太仓远德环保科技有限公司 | Method for keeping constant concentration of washing agents of washing machine |
| CN105483689A (en) * | 2015-12-23 | 2016-04-13 | 郑州日产汽车有限公司 | On-line monitoring method for automobile coating phosphated residues |
| CN108531965A (en) * | 2018-05-24 | 2018-09-14 | 无锡运通涂装设备有限公司 | A kind of automatic on-line analytical electrophoresis slot |
| CN109406466A (en) * | 2018-12-17 | 2019-03-01 | 安徽省巢湖铸造厂有限责任公司 | A kind of phosphatization tank liquor on-line analysis |
| CN109406465A (en) * | 2018-12-16 | 2019-03-01 | 安徽省巢湖铸造厂有限责任公司 | Phosphatization tank liquor in-line analyzer |
| CN110747452A (en) * | 2019-12-12 | 2020-02-04 | 汉德车桥(株洲)齿轮有限公司 | Phosphorization method for precision forging gear |
| CN112604520A (en) * | 2020-11-27 | 2021-04-06 | 中国第一汽车股份有限公司 | Preparation method of phosphating tank liquor for reducing phosphating traces |
| CN112630284A (en) * | 2020-12-18 | 2021-04-09 | 湖南航天天麓新材料检测有限责任公司智能检测装备分公司 | Phosphating tank liquid on-line detection and automatic supply system |
| CN114892154A (en) * | 2022-05-17 | 2022-08-12 | 洛阳轴承研究所有限公司 | High-corrosion-resistance phosphating solution for wind power main shaft bearing and phosphating method |
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| GB2153854A (en) * | 1984-02-03 | 1985-08-29 | Fosfacol S P A | Automatically controlling the phosphate coating of metals |
| CN202099383U (en) * | 2011-03-31 | 2012-01-04 | 常州常宝精特钢管有限公司 | Phosphating liquid timing and quantitative supply device |
| CN202465940U (en) * | 2012-01-04 | 2012-10-03 | 江阴三知工控机械有限公司 | Device for monitoring concentration in phosphoric acid tank on line and adding phosphoric acid automatically |
| CN102880199A (en) * | 2012-09-27 | 2013-01-16 | 东莞市劲升无尘涂装科技有限公司 | Full-automatic PH (potential of hydrogen) value detecting and monitoring and automatic chemical replenishing system for metal spraying |
-
2013
- 2013-05-21 CN CN201310188232XA patent/CN103276388A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2153854A (en) * | 1984-02-03 | 1985-08-29 | Fosfacol S P A | Automatically controlling the phosphate coating of metals |
| CN202099383U (en) * | 2011-03-31 | 2012-01-04 | 常州常宝精特钢管有限公司 | Phosphating liquid timing and quantitative supply device |
| CN202465940U (en) * | 2012-01-04 | 2012-10-03 | 江阴三知工控机械有限公司 | Device for monitoring concentration in phosphoric acid tank on line and adding phosphoric acid automatically |
| CN102880199A (en) * | 2012-09-27 | 2013-01-16 | 东莞市劲升无尘涂装科技有限公司 | Full-automatic PH (potential of hydrogen) value detecting and monitoring and automatic chemical replenishing system for metal spraying |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001686A (en) * | 2014-05-22 | 2014-08-27 | 太仓远德环保科技有限公司 | Method for keeping constant concentration of washing agents of washing machine |
| CN104001686B (en) * | 2014-05-22 | 2016-01-13 | 太仓远德环保科技有限公司 | A kind of method keeping the cleaning agent constant concentration of cleaning machine |
| CN105483689A (en) * | 2015-12-23 | 2016-04-13 | 郑州日产汽车有限公司 | On-line monitoring method for automobile coating phosphated residues |
| CN108531965A (en) * | 2018-05-24 | 2018-09-14 | 无锡运通涂装设备有限公司 | A kind of automatic on-line analytical electrophoresis slot |
| CN109406465A (en) * | 2018-12-16 | 2019-03-01 | 安徽省巢湖铸造厂有限责任公司 | Phosphatization tank liquor in-line analyzer |
| CN109406466A (en) * | 2018-12-17 | 2019-03-01 | 安徽省巢湖铸造厂有限责任公司 | A kind of phosphatization tank liquor on-line analysis |
| CN110747452A (en) * | 2019-12-12 | 2020-02-04 | 汉德车桥(株洲)齿轮有限公司 | Phosphorization method for precision forging gear |
| CN112604520A (en) * | 2020-11-27 | 2021-04-06 | 中国第一汽车股份有限公司 | Preparation method of phosphating tank liquor for reducing phosphating traces |
| CN112630284A (en) * | 2020-12-18 | 2021-04-09 | 湖南航天天麓新材料检测有限责任公司智能检测装备分公司 | Phosphating tank liquid on-line detection and automatic supply system |
| CN114892154A (en) * | 2022-05-17 | 2022-08-12 | 洛阳轴承研究所有限公司 | High-corrosion-resistance phosphating solution for wind power main shaft bearing and phosphating method |
| CN114892154B (en) * | 2022-05-17 | 2023-08-11 | 洛阳轴承研究所有限公司 | High-corrosion-resistance phosphating solution for wind power main shaft bearing and phosphating method |
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Application publication date: 20130904 |