CN105021768A - Steel plate high-temperature acid washing test apparatus and use method thereof - Google Patents

Steel plate high-temperature acid washing test apparatus and use method thereof Download PDF

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Publication number
CN105021768A
CN105021768A CN201410150359.7A CN201410150359A CN105021768A CN 105021768 A CN105021768 A CN 105021768A CN 201410150359 A CN201410150359 A CN 201410150359A CN 105021768 A CN105021768 A CN 105021768A
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China
Prior art keywords
container
pickling
sample
water
preheating
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Pending
Application number
CN201410150359.7A
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Chinese (zh)
Inventor
王银军
裴新华
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Shanghai Meishan Iron and Steel Co Ltd
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Shanghai Meishan Iron and Steel Co Ltd
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Priority to CN201410150359.7A priority Critical patent/CN105021768A/en
Publication of CN105021768A publication Critical patent/CN105021768A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a steel plate high-temperature acid washing test apparatus and a use method thereof. A purpose of the present invention is to mainly solve the technical problems of the steel plate surface oxidation yellow spot after the acid washing and incapability of accurate evaluation of the acid washing plate surface gray degree characteristic in the prior art. The steel plate high-temperature acid washing test apparatus comprises a water bath heating container with a hollowed-out bracket arranged inside, a pre-heating container, an acid washing container, rinsing containers and a water bath portraying container, wherein the water bath heating container, the rinsing container and the water bath portraying container are placed on the same experiment table, the pre-heating container and the acid washing container are placed at intervals on the hollowed-out bracket of the water bath heating container, the pre-heating container and the acid washing container respectively comprise a glass beaker, a large cover plate used for covering the beaker opening surface and provided with a sample inserting port and a thermometer inserting hole, a small cover plate for covering the sample inserting port on the large cover, and a thermometer, and the water bath portraying container is a colorless transparent glass container with complete-white acrylic lining plate arranged on the bottom portion of the inner side. The apparatus and the method of the present invention are mainly used for simulation of the acid washing process and the steel plate acid washing property, and evaluation of the acid washing plate surface gray degree.

Description

A kind of its using method of steel plate high temperature pickling test unit
Technical field
The invention belongs to metal material surface technical applications, relate to a kind of steel plate acid-washing test unit, particularly a kind of its using method of steel plate high temperature pickling test unit.
Background technology
Commodity pickled plate is that industry manufacture field is widely used at present based on the steel plate deep processed product of acid cleaning process exploitation.The industrial acid-washed technology of steel plate is comparatively ripe.Along with steel mill newly produces the exploitation of line, new steel grade, pickled plate surface imperfection problem such as color and luster, striped, macula lutea, residual oxidization skin etc. still frequently occur.Existing normal temperature acid washing test, be difficult to simulation and produce line high temperature acid washing conditions, test result is difficult to meet practical application.
Chinese patent CN 201210069683.7, name is called: a kind of pickling simulation experiment device and using method thereof, disclose a kind of pickling simulation experiment device, this equipment comprises descaling bath, acid solution firing equipment, experiment table, specimen holder, position control hydraulic cylinder, tension force hydraulic control cylinder, position transducer, thermopair and oil pressure sensor; Also comprise computing machine, signal amplifier and data collecting card; Simulate various technological requirement and comprise temperature, tension force, sample movement velocity, acid solution composition, concentration; Pickling simulation experiment device can be followed the tracks of pickling simulated experiment overall process with video capture device and electrochemical apparatus and evaluate experimental result; The omnidistance computer controlled automatic convenient experimental operation of pickling simulation experiment device, data acquisition function is strong, and control accuracy is high, provides foundation for finally obtaining optimum acid cleaning process.
The complex structure of existing pickling simulation experiment device, process of the test control overflow is high, and experimentation cost is high, and disclosed described method cannot avoid surface of steel plate oxidation macula lutea problem after pickling, cannot the pickling characteristic of objective evaluation steel plate, the particularly grey whiteness characteristic in acid-cleaning plate surface.
Summary of the invention
The object of this invention is to provide a kind of its using method of steel plate high temperature pickling test unit, mainly solve in prior art cannot avoid surface of steel plate oxidation macula lutea after pickling, cannot the technical matters of the grey whiteness characteristic in accurate evaluation acid-cleaning plate surface.
The technical solution used in the present invention is:
A kind of steel plate high temperature pickling test unit, is provided with the heating water bath container of hollow out bracket by inside, preheating container, pickling container, Rinse container, water-bath container of drawing a portrait forms; Heating water bath container, Rinse container, water-bath description container are placed on same experiment table, on the hollow out bracket of heating water bath container, interval is placed with preheating container, pickling container, preheating container and pickling container include glass beaker, are provided with the large cover of sample insert port and thermo detector patchhole for the surface covering beaker mouth, for covering minor flaps, the thermo detector of sample insert port on large cover, the surrounding of water-bath description container inside and bottom are provided with complete white acrylic liner plate.
Further, the large cover organic glass of resistance to 100 DEG C of high temperature makes, and center laser engraving 10 mm × 80 mm slots, to insert sample, at the circular port of mm place, distance square opening center 10 ~ 20 laser engraving diameter 10 mm, to insert thermo detector.
Pickling container is identical with preheating container component.
Preferably, water-bath description container is rectangular parallelepiped colourless transparent glass container, and its inside bottom is bonding with complete white acrylic liner plate tiling.The effect of such process is: complete white acrylic liner plate can obtain consistent complete white background, and the complete white acrylic liner plate of surrounding can make water-bath draw a portrait gather digital figure more natural, more have stereoscopic sensation, be convenient to follow-up image procossing.
Preferably, Rinse container is glass beaker, and for the rinsing after pickling, rinsing solution is deionized water, and preferably use two Rinse container, be respectively used to elementary rinsing, secondary rinsing, washings are changed in good time.
A using method for steel plate high temperature pickling test unit, comprises the following steps:
A, sample preparation, be processed into the rectangle sample of chamfering by steel plate to be tested, the probe inlet that the large cover that sample will be convenient to insert preheating container and pickling container is provided with, and removes the stain of specimen surface with absolute ethyl alcohol wiping;
B, in preheating container, add water, the hydrochloric acid of design concentration is added at pickling container, in heating water bath container, the water level of water is higher than the liquid level of the hydrochloric acid in the water level in preheating container and pickling container, by the pickling temperature that the hydrochloric acid heating and thermal insulation in water in preheating container and pickling container sets to thermo detector by heating water bath container, sample is inserted in preheating container through the sample insert port that the large cover of preheating container is provided with and carries out preheating, minor flaps is covered at the sample insert port place of preheating container large cover, to improve heat insulation effect, reduce the vaporization at high temperature of water;
C, the sample after preheating inserted through the sample insert port that the large cover of pickling container is provided with and carries out high-temperature acid in pickling container and be washed till design time, minor flaps is covered at the sample insert port place of pickling container large cover, to improve heat insulation effect, reduce the vaporization at high temperature of hydrochloric acid;
D, move to the sample after pickling in Rinse container deionized water in carry out rinsing, remove the oxide skin particle of adsorption;
E, be quickly moved to the sample after rinsing in water-bath description container deionized water in tile, water level covers specimen surface, carries out the pickling specificity analysis of sample with the pickled surface digital figure that digital camera gathers sample in water-bath description container.
Further, the time that the sample after pickling moves to Rinse container from pickling container is less than 2 seconds, is oxidized in atmosphere to prevent the sample after pickling, occurs macula lutea.
Further, in steps d of the present invention, in the deionized water moving in two Rinse container successively of the sample after pickling, carry out rinsing, to guarantee that sample is cleaned.
The present invention has following good effect compared to existing technology:
1. apparatus of the present invention cost is low, using method flexible, is applicable to laboratory Fast simulation high temperature pickling and produces the acid cleaning process of line and the pickling characteristic of steel plate, can be used for the acid-cleaning plate grey whiteness evaluation in surface.
2. the present invention adopts digital camera to gather the pickled surface digital figure of sample in water-bath description container, acid-cleaning plate surface oxidation macula lutea problem after solution pickling, acid-cleaning plate real pickled surface description figure can be obtained, for the pickling characteristic of accurate evaluation acid-cleaning plate is given security.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is agent structure front view of the present invention.
Accompanying drawing 2 is large cover vertical views of preheating container of the present invention and pickling container.
Accompanying drawing 3 is water-bath of the present invention description structure of container front views.
Accompanying drawing 4 is water-bath of the present invention description container vertical views.
Description of symbols in figure:
1-heating water bath container, 2-hollow out bracket, 3-preheating container, 4-large cover, 5-minor flaps, 6-thermo detector, 7-sample, 8-preheating water, 9-hydrochloric acid, 10-Rinse container, 11-deionized water, the sample after 12-pickling, the complete white acrylic liner plate of 13-, 14-water-bath description container, 31-pickling container.
Embodiment
With reference to Fig. 1,2,3,4, a kind of steel plate high temperature pickling test unit, is provided with the heating water bath container 1 of hollow out bracket 2 by inside, preheating container 3, pickling container 31, Rinse container 10, water-bath container 14 of drawing a portrait forms, heating water bath container 1, Rinse container 10, water-bath description container 14 is placed on same experiment table, on the hollow out bracket 2 of heating water bath container 1, interval is placed with preheating container 3, pickling container 31, preheating container 3 comprises glass beaker, surface for covering beaker mouth is provided with the large cover 4 that 10 mm × 80 mm sample 7 insert ports and diameter are 10 mm thermo detector 6 patchholes, for covering the minor flaps 5 of sample 7 insert port on large cover 4, thermo detector 6, pickling container 31 comprises glass beaker, surface for covering beaker mouth is provided with the large cover 4 of sample 7 insert port and thermo detector 6 patchhole, for covering the minor flaps 5 of sample 7 insert port on large cover 4, thermo detector 6, the inner side surrounding of water-bath description container 14 and bottom are provided with complete white acrylic liner plate 13.
Large cover 4 organic glass of resistance to 100 DEG C of high temperature makes, and center laser engraving 10 mm × 80 mm slots, at the circular port of mm place, distance square opening center 15 laser engraving diameter 10 mm.
Preferably, water-bath description container 14 is rectangular parallelepiped colourless transparent glass container, and the complete white acrylic liner plate 13 of its inside bottom tiles bonding.
A using method for steel plate high temperature pickling test unit, comprises the following steps:
A, sample preparation, be processed into the rectangle sample 7 of chamfering by steel plate to be tested, sample 7 insert port that the large cover 4 that sample 7 will be convenient to insert preheating container 3 and pickling container 31 is provided with, and removes the stain on sample 7 surface with absolute ethyl alcohol wiping;
B, in preheating container 3, add water, the hydrochloric acid 9 of design concentration is added at pickling container 31, in heating water bath container 1, the water level of water is higher than the liquid level of the hydrochloric acid 9 in the water level in preheating container and pickling container, 85 DEG C that by heating water bath container 1, hydrochloric acid 9 heating and thermal insulation to the thermo detector 6 in water in preheating container and pickling container are set, sample 7 is inserted in preheating container 3 through the sample insert port that the large cover 4 of preheating container 3 is provided with and carries out preheating, cover minor flaps 5 at the sample insert port place of preheating container large cover 4;
C, to be inserted by the sample 7 after preheating carry out high-temperature acid in pickling container 31 and be washed till design time through the sample insert port that the large cover 4 of pickling container 31 is provided with, in pickling container large cover sample insert port, place covers minor flaps 5;
D, in 2 seconds, rapidly move to the sample 12 after pickling in Rinse container 10 deionized water 11 in carry out rinsing, move to again after a rinsing in the deionized water in another Rinse container and carry out rinsing;
E, be quickly moved to the sample 12 after rinsing in water-bath description container 14 deionized water 11 in tile, water level covers sample 12 surface, gather the pickled surface digital figure of sample in water-bath description container 14 with digital camera, carry out the analysis of the pickling characteristic of sample, pickled surface ash whiteness.
The present invention accurately can obtain acid-cleaning plate real pickled surface description figure, for the pickling characteristic of accurate evaluation acid-cleaning plate is given security.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.

Claims (5)

1. a steel plate high temperature pickling test unit, is provided with the heating water bath container of hollow out bracket by inside, preheating container, pickling container, Rinse container, water-bath container of drawing a portrait forms; Heating water bath container, Rinse container, water-bath description container are placed on same experiment table, it is characterized in that: on the hollow out bracket of heating water bath container, interval is placed with preheating container, pickling container, preheating container and pickling container include glass beaker, are provided with the large cover of sample insert port and thermo detector patchhole for the surface covering beaker mouth, for covering minor flaps, the thermo detector of sample insert port on large cover, water-bath description container is colourless transparent glass container.
2. a kind of steel plate high temperature pickling test unit as claimed in claim 1, is characterized in that, be provided with complete white acrylic liner plate bottom described water-bath description container inside, described Rinse container is glass beaker.
3. the using method of a kind of steel plate high temperature pickling test unit as claimed in claim 1 or 2, it is characterized in that, described method comprises the following steps:
A, sample preparation, be processed into the rectangle sample of chamfering by steel plate to be tested, the probe inlet that the large cover that sample will be convenient to insert preheating container and pickling container is provided with, and removes the stain of specimen surface with absolute ethyl alcohol wiping;
B, in preheating container, add water, the hydrochloric acid of design concentration is added at pickling container, in heating water bath container, the water level of water is higher than the liquid level of the hydrochloric acid in the water level in preheating container and pickling container, by the pickling temperature that the hydrochloric acid heating and thermal insulation in water in preheating container and pickling container sets to thermo detector by heating water bath container, sample is inserted in preheating container through the sample insert port that the large cover of preheating container is provided with and carries out preheating, cover minor flaps at the sample insert port place of preheating container large cover;
C, the sample after preheating inserted through the sample insert port that the large cover of pickling container is provided with and carries out high-temperature acid in pickling container and be washed till design time, cover minor flaps at the sample insert port place of pickling container large cover;
D, move to the sample after pickling in Rinse container deionized water in carry out rinsing, remove the oxide skin particle of adsorption;
E, be quickly moved to the sample after rinsing in water-bath description container deionized water in tile, water level covers specimen surface, carries out the pickling specificity analysis of sample with the pickled surface digital figure that digital camera gathers sample in water-bath description container.
4. the using method of a kind of steel plate high temperature pickling test unit as claimed in claim 3, is characterized in that, the sample after described pickling from the hydrochloric acid in pickling container in move in Rinse container deionized water in time be less than 2 seconds.
5. the using method of a kind of steel plate high temperature pickling test unit as claimed in claim 3, is characterized in that, carries out rinsing in the deionized water moving in two Rinse container successively of the sample after described pickling.
CN201410150359.7A 2014-04-15 2014-04-15 Steel plate high-temperature acid washing test apparatus and use method thereof Pending CN105021768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410150359.7A CN105021768A (en) 2014-04-15 2014-04-15 Steel plate high-temperature acid washing test apparatus and use method thereof

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Application Number Priority Date Filing Date Title
CN201410150359.7A CN105021768A (en) 2014-04-15 2014-04-15 Steel plate high-temperature acid washing test apparatus and use method thereof

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CN105021768A true CN105021768A (en) 2015-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107063817A (en) * 2017-04-25 2017-08-18 河钢股份有限公司邯郸分公司 A kind of pickling detection means of test button half

Citations (7)

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Publication number Priority date Publication date Assignee Title
GB949184A (en) * 1959-06-04 1964-02-12 Framalite A process for pickling and passivating hollow metal structures
DE10332858A1 (en) * 2002-08-07 2004-02-26 Andritz Ag Pickling a metallic strip comprises passing the strips in normal operation continuously into a rinsing section after passage through a pickling section, spraying with rinsing medium and wetting the surface with a pickling medium
IE84176B1 (en) * 2003-07-02 2006-04-05 Omc Scientific Research Limited Surface recovery of contaminated deposition tools
CN201183824Y (en) * 2008-04-09 2009-01-21 新疆八一钢铁股份有限公司 Backing repeat washing apparatus of cold-rolled sheet pickling line
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Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB949184A (en) * 1959-06-04 1964-02-12 Framalite A process for pickling and passivating hollow metal structures
DE10332858A1 (en) * 2002-08-07 2004-02-26 Andritz Ag Pickling a metallic strip comprises passing the strips in normal operation continuously into a rinsing section after passage through a pickling section, spraying with rinsing medium and wetting the surface with a pickling medium
IE84176B1 (en) * 2003-07-02 2006-04-05 Omc Scientific Research Limited Surface recovery of contaminated deposition tools
CN201183824Y (en) * 2008-04-09 2009-01-21 新疆八一钢铁股份有限公司 Backing repeat washing apparatus of cold-rolled sheet pickling line
CN101381878A (en) * 2008-10-22 2009-03-11 中国印钞造币总公司 Process for rapidly cleaning surface of nickel-coated billet cake
CN201801602U (en) * 2010-06-24 2011-04-20 无锡市硕阳不锈钢有限公司 Stainless steel plate pickling device
CN102205350A (en) * 2011-01-22 2011-10-05 马鞍山钢铁股份有限公司 Device and method for removing scale skin of hot rolled steel plate for cold rolling

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107063817A (en) * 2017-04-25 2017-08-18 河钢股份有限公司邯郸分公司 A kind of pickling detection means of test button half

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