CN109406465A - Phosphatization tank liquor in-line analyzer - Google Patents
Phosphatization tank liquor in-line analyzer Download PDFInfo
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- CN109406465A CN109406465A CN201811538186.0A CN201811538186A CN109406465A CN 109406465 A CN109406465 A CN 109406465A CN 201811538186 A CN201811538186 A CN 201811538186A CN 109406465 A CN109406465 A CN 109406465A
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- tank
- tank liquor
- caco
- liquor
- metering pump
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of phosphatization tank liquor in-line analyzers, comprising: accommodates the Phosphating Slot of tank liquor；It is provided with photometric blending tank, tank liquor is sampled from Phosphating Slot by the first metering pump；Accommodate CaCO3The CaCO of solution3Tank conveys CaCO to blending tank by the second metering pump3Solution；The NaOH tank for accommodating NaOH solution conveys NaOH solution to blending tank by third metering pump.The beneficial effects of the present invention are realize the integration monitoring of total acidity (TA) He Zongtie (TFe) two indexs, significantly reduce equipment manufacturing cost cost.
Description
Technical field
The present invention relates to a kind of analyzers, especially phosphatization tank liquor in-line analyzer.
Background technique
Phosphatization is a kind of conventional process of Treatment of Metal Surface, covers different types of phosphating coat by generating, is aided with and connects
The techniques such as continuous saponification, immersion oil, closing improve the anticorrosive and mechanical performance of workpiece surface.
In phosphating process, with the progress chemically reacted in slot variation persistently occurs for the chemical composition of phosphatization tank liquor,
The especially growth and decline of total acidity (TA) He Zongtie (TFe) two indexs determine that thickness, consistency of phosphating coat etc. are in one kind
In dynamic change procedure.For the stabilization for guaranteeing phosphorization film quality, the relatively permanent of phosphatization tank liquor component must be just kept as far as possible
It is fixed.In large-scale production, just it is particularly important based on on-line monitoring in order to carry out adjustment in time to tank liquor.
Currently, the on-line computing model for total acidity (TA) He Zongtie (TFe) has been commercialized, but expensive, and
Do not have compatibility between two kinds of on-line instruments, further increases the cost burden of equipment on-line monitoring.To find out its cause, being this
The titration principle that a little instruments generally use has stringent in terms of the pH judgement of equivalent point and adding of agent dosage
It is required that therefore improving dependence to instrument and equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of phosphatization tank liquor in-line analyzers, realize total acidity (TA) and total
The integration monitoring of two indexs of iron (TFe), significantly reduces equipment manufacturing cost cost.
The present invention is achieved through the following technical solutions.
A kind of phosphatization tank liquor in-line analyzer, comprising:
Accommodate the Phosphating Slot of tank liquor；
It is provided with photometric blending tank, tank liquor is sampled from Phosphating Slot by the first metering pump；
Accommodate CaCO3The CaCO of solution3Tank conveys CaCO to blending tank by the second metering pump3Solution；
The NaOH tank for accommodating NaOH solution conveys NaOH solution to blending tank by third metering pump.
Further, magnetic stirring apparatus is provided in above-mentioned blending tank.
Enough CaCO are added in Phosphating Slot fluid samples3Solution is sufficiently mixed, and pH is adjusted to 10 or more, is made in sample
Each valence phosphate radical ((PO4)3-、(HPO4)2-、(H2PO4)3-) all generate insoluble calcium precipitation；It is total in tank liquor by experiment
Linear relationship curve is fitted between acidity and the light transmittance of sample mixed liquid；Use the light transmission of photometer measurement sample mixed liquid
Rate, control total acidity (TA) and light transmittance linear relationship curve, it is counter to push away phosphatization tank liquor total acidity (TA).
Similarly, enough NaOH solutions are added in Phosphating Slot fluid samples, are sufficiently mixed, pH is adjusted to 10 or more, makes sample
In each valence iron ion (Fe2+、Fe3+) all generate insoluble molysite deposition；By experiment, in the total iron of tank liquor (TFe) and examination
Linear relationship curve is fitted between the light transmittance of sample mixed liquor；Use the light transmittance of photometer measurement sample mixed liquid, control
Total iron (TFe) and light transmittance linear relationship curve, it is counter to push away the total iron of phosphatization tank liquor (TFe).
Beneficial effects of the present invention:
To total acid (TA) and total iron (TFe), detected using light transmittance of the photometer to composite sample, step and equipment
Completely the same, difference is only limitted to add CaCO3Or the difference of NaOH solution, solve the compatibility issue of two Indexs measures,
Integrated on-line monitoring is realized, is created condition for the significant cost for cutting down instrument.
Detailed description of the invention
Fig. 1 is the schematic diagram of phosphatization tank liquor in-line analyzer of the present invention.
Specific embodiment
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is the schematic diagram of phosphatization tank liquor in-line analyzer of the present invention, referring to Fig.1, the present invention, phosphatization tank liquor on-line analysis
Instrument, comprising:
Accommodate the Phosphating Slot 1 of tank liquor；
It is provided with the blending tank 2 of photometer 3, tank liquor is sampled from Phosphating Slot 1 by the first metering pump 4, is set in blending tank 2
It is equipped with magnetic stirring apparatus 9；
Accommodate CaCO3The CaCO of solution3Tank 5 conveys CaCO to blending tank 2 by the second metering pump 63Solution；
The NaOH tank 7 for accommodating NaOH solution conveys NaOH solution to blending tank 2 by third metering pump 8.
The present invention, the use process of phosphatization tank liquor in-line analyzer are as follows:
1, pass through metering pump from Phosphating Slot timing sampling tank liquor；
2, pass through the metering pump amount of taking fully CaCO3Solution is mixed with phosphatization tank liquor；
3, mixed liquor is sufficiently mixed by magnetic agitation guarantee；
4, pass through photometer measurement mixed liquor light transmittance；
5, total acidity (TA) and light transmittance linear relationship curve are compared, it is counter to push away phosphatization tank liquor total acidity (TA)；
6, it empties and samples tank liquor from Phosphating Slot again by metering pump after mixed liquor；
7, it is mixed by the metering pump amount of taking fully NaOH solution with phosphatization tank liquor；
8, mixed liquor is sufficiently mixed by magnetic agitation guarantee；
9, pass through photometer measurement mixed liquor light transmittance；
10, total iron (TFe) and light transmittance linear relationship curve are compared, it is counter to push away the total iron of phosphatization tank liquor (TFe).
11, total acidity (TA) or total iron (TFe) and light transmittance linear relationship curve, reading data and output, automatic are compared
Control, human-computer interaction etc. are controlled by build-in IC chip.
The present invention, phosphatization tank liquor in-line analyzer, to total acid (TA) and total iron (TFe), using photometer to composite sample
Light transmittance detected, step is completely the same with equipment, difference be only limitted to add CaCO3Or the difference of NaOH solution, it solves
The compatibility issues of two Indexs measures, realizes integrated on-line monitoring, for the significant cost wound for cutting down instrument
Condition is made.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with this field technology
Personage can understand the content of present invention and be implemented, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.
Claims (2)
1. a kind of phosphatization tank liquor in-line analyzer it is characterized in that characterized by comprising
Accommodate the Phosphating Slot of tank liquor；
It is provided with photometric blending tank, tank liquor is sampled from Phosphating Slot by the first metering pump；
Accommodate CaCO3The CaCO of solution3Tank conveys CaCO to blending tank by the second metering pump3Solution；
The NaOH tank for accommodating NaOH solution conveys NaOH solution to blending tank by third metering pump.
2. phosphatization tank liquor in-line analyzer according to claim 1, which is characterized in that be provided with magnetic force in the blending tank
Blender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538186.0A CN109406465A (en) | 2018-12-16 | 2018-12-16 | Phosphatization tank liquor in-line analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538186.0A CN109406465A (en) | 2018-12-16 | 2018-12-16 | Phosphatization tank liquor in-line analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109406465A true CN109406465A (en) | 2019-03-01 |
Family
ID=65459381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811538186.0A Pending CN109406465A (en) | 2018-12-16 | 2018-12-16 | Phosphatization tank liquor in-line analyzer |
Country Status (1)
| Country | Link |
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| CN (1) | CN109406465A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202330283U (en) * | 2011-11-24 | 2012-07-11 | 东莞市常晋凹版模具有限公司 | Device utilizing illumination method to on-line measure ion concentration of plating solution |
| CN102928389A (en) * | 2012-11-02 | 2013-02-13 | 哈尔滨工业大学 | Device for quickly detecting impregnation amount in real time and using method thereof |
| CN103276388A (en) * | 2013-05-21 | 2013-09-04 | 湖北汽车工业学院 | Device and method for online monitoring and automatic supplementation of phosphating solution |
| CN203376335U (en) * | 2013-08-15 | 2014-01-01 | 四川大学 | Sulfate radical concentration on-line fast measuring system |
-
2018
- 2018-12-16 CN CN201811538186.0A patent/CN109406465A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202330283U (en) * | 2011-11-24 | 2012-07-11 | 东莞市常晋凹版模具有限公司 | Device utilizing illumination method to on-line measure ion concentration of plating solution |
| CN102928389A (en) * | 2012-11-02 | 2013-02-13 | 哈尔滨工业大学 | Device for quickly detecting impregnation amount in real time and using method thereof |
| CN103276388A (en) * | 2013-05-21 | 2013-09-04 | 湖北汽车工业学院 | Device and method for online monitoring and automatic supplementation of phosphating solution |
| CN203376335U (en) * | 2013-08-15 | 2014-01-01 | 四川大学 | Sulfate radical concentration on-line fast measuring system |
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Application publication date: 20190301 |