CN211036111U - Thermal acid etching device - Google Patents
Thermal acid etching device Download PDFInfo
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- CN211036111U CN211036111U CN201921860735.6U CN201921860735U CN211036111U CN 211036111 U CN211036111 U CN 211036111U CN 201921860735 U CN201921860735 U CN 201921860735U CN 211036111 U CN211036111 U CN 211036111U
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- acid etching
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Abstract
The utility model relates to a reaction unit's technical field, more specifically says, it relates to a hot acid loses device, and its technical scheme main points are: the device comprises a constant-temperature water bath kettle, wherein a shelf is arranged in an inner cavity of the constant-temperature water bath kettle, an acid etching tank is placed on the shelf, acid etching liquid is filled in the acid etching tank, the acid etching liquid in the acid etching tank is heated based on the water temperature in the constant-temperature water bath kettle, acid etching reaction is carried out on steel through the acid etching liquid, and the common constant-temperature water bath kettle 1 is used for indirectly heating acid liquid to carry out hot etching on macrostructure and defects of the steel. The utility model has the advantages of constant temperature heating has saved equipment investment cost to simplified the earlier stage preparation work and the aftertreatment operation of hot acid corrosion, reduced hot acid corrosion detection cost.
Description
Technical Field
The utility model relates to a reaction unit's technical field, more specifically says, it relates to a hot acid loses device.
Background
According to the hot acid etching method of the steel macrostructure and defect acid etching inspection method, acid liquor with different proportions corresponding to macrostructure samples of different steel types needs to be heated to 60-70 ℃ or 60-80 ℃ and kept in a specified temperature range. The standard does not specify how to heat the acid liquid, and the current heating technology mainly utilizes a corrosion-resistant heater arranged in a corrosion-resistant container to directly heat the acid liquid or utilizes a heat exchanger made of graphite and other materials to indirectly heat the hot acid in a heat exchange mode by taking high-temperature water vapor and the like as a heat source. The acid etching devices involve test facilities, have complex safety and environmental protection requirements, and require special low-power detection laboratories and environmental protection facilities.
The traditional thermal acid corrosion test device is mainly used for units such as special steel factories and the like which detect a large number of low-power samples every day and provide detection results within a short time such as dozens of minutes. The traditional thermal acid etching device has the advantages that the detection batch size is smaller, and the energy consumption is higher. For a comprehensive detection department with small low-power sample batch and a detection period allowed to be longer, such as more than one hour, if the original equipment is used, the waste of resources is caused.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a hot acid loses device has the constant temperature heating, has saved equipment investment cost to simplified the earlier stage preparation work and the aftertreatment operation that hot acid loses, reduced the advantage that hot acid loses the detection cost.
The above technical purpose of the present invention can be achieved by the following technical solutions: including the constant temperature water bath, the inner chamber of constant temperature water bath is provided with the shelf, acid etching groove has been placed on the shelf, acid etching liquid is equipped with in the acid etching groove, based on temperature in the constant temperature water bath is right acid etching liquid in the acid etching groove heats, through acid etching liquid carries out the acid etching reaction to the steel. The acid etching groove is made of materials with corrosion resistance and good heat conduction performance.
In one embodiment: and 5mm-50mm intervals are reserved between the acid etching tank and each side wall of the constant-temperature water bath kettle.
In one embodiment: lifting lugs are welded on the upper edge of the side wall of the acid etching groove.
In one embodiment: the welding of lug has two, two the lug symmetry sets up on two lateral walls of acid etching groove.
In one embodiment: and a cover plate is arranged at an opening at the top of the acid etching groove and is in seamless fit with the opening of the acid etching groove.
In one embodiment: the cover plate is made of an acid-corrosion-resistant material.
In one embodiment: the cover plate is made of glass fiber reinforced plastics.
In one embodiment: the acid etching groove is made of nickel-based corrosion-resistant alloy.
In one embodiment: the cover plate is provided with a small hole, and a thermometer for monitoring the temperature of the acid etching solution is inserted through the small hole.
To sum up, the utility model discloses following beneficial effect has:
the method has the advantages that the acid liquor is indirectly heated by the common constant-temperature water bath to carry out hot etching on the macrostructure and the defects of the steel, compared with the traditional hot acid etching test device, the method has the advantages of low energy consumption, simple and convenient operation, safety and reliability in small-batch test of samples, and is suitable for carrying out acid etching on the small-batch hot acid etching samples.
Drawings
FIG. 1 is a schematic structural diagram of a thermal acid etching apparatus according to the present embodiment;
fig. 2 is a schematic structural diagram of a thermal acid etching apparatus according to this embodiment.
In the figure: 1. a constant-temperature water bath kettle; 2. a shelf; 3. acid etching the tank; 4. lifting lugs; 5. and (7) a cover plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
A thermal acid etching device comprises a constant-temperature water bath pot 1, a shelf 2 is arranged in an inner cavity of the constant-temperature water bath pot 1, an acid etching groove 3 is placed on the shelf 2, acid etching liquid is filled in the acid etching groove 3, the acid etching liquid in the acid etching groove 3 is heated based on the water temperature of the constant-temperature water bath pot 1, and acid etching reaction is carried out on steel through the acid etching liquid. The material of the acid etching tank 3 should have good heat conductivity and acid etching resistance, and resist one or two or three kinds of aqueous solutions of hydrochloric acid, hydrochloric acid + nitric acid, hydrochloric acid and sulfuric acid. The acid etching groove 3 is formed by welding or cold deformation and welding method, and a welding rod with the same or similar material as the base body of the acid etching groove 3 is adopted.
Through the technical scheme, the common constant-temperature water bath 1 is used for indirectly heating the acid liquor to carry out hot etching on the macrostructure and the defects of the steel, and compared with the traditional hot acid etching test device, the hot acid etching test device has the advantages of low energy consumption, simplicity and convenience in operation, safety and reliability, and is suitable for carrying out acid etching on small-batch hot acid etching samples.
5mm-50mm of space or larger size is left between the acid etching tank 3 and each side wall of the constant temperature water bath 1, and the distance of each side surface is uniformly arranged. When the acid etching tank 3 is placed on the shelf 2 in the constant temperature water bath 1, the height of the acid etching tank 3 is not lower than the upper edge of the constant temperature water bath 1 and is higher than the upper edge of the constant temperature water bath 1 by 1mm-80mm or more.
Through the technical scheme, the acid etching tank 3 is convenient to place and take out, and the side surface of the acid etching tank 3 is uniformly heated and rapidly conducts heat.
Through the technical scheme, the acid etching tank 3 is convenient to place and take out.
Two lifting lugs 4 are welded, and the two lifting lugs 4 are symmetrically arranged on two side walls of the acid etching tank 3.
Through the technical scheme, the acid etching tank 3 is more convenient to place and take out, and the stress of the acid etching tank 3 is stable in the taking and placing process.
As shown in fig. 2, a cover plate 5 is disposed at the opening at the top of the acid etching tank 3, and the cover plate 5 is in seamless fit with the opening of the acid etching tank 3. Meanwhile, a laboratory is provided with a fume hood air extraction system, an exhaust gas treatment device, and the like.
Through above-mentioned technical scheme, avoid the acid mist that the acid etching in-process produced to volatilize, when preventing that the acid mist from volatilizing, the middle part of apron 5 lower surface is less than peripheral part, guarantees that the acid mist meets the liquid that the condensation becomes at apron 5 lower surface, collects to the center under the action of gravity, finally drips back to acid etching groove 3 with the liquid droplet form, prevents that the liquid droplet from flowing out outside acid etching groove 3 through the lid border, pollutes water in the water bath. Even if acid mist volatilizes to the air, can handle through the relevant equipment in laboratory, can reduce acid mist by a wide margin through apron 5, effectively reduced the energy consumption.
The cover plate 5 is made of an acid-resistant material.
Through the technical scheme, the cover plate 5 cannot be easily corroded by acid, and the service life of the cover plate is prolonged.
The cover plate 5 is made of glass fiber reinforced plastic.
Through the technical scheme, the cover plate 5 cannot be easily corroded by acid, and the service life of the cover plate is prolonged.
The acid etching tank 3 is made of nickel-based corrosion-resistant alloy.
By adopting the technical scheme, the acid etching tank 3 cannot be easily subjected to acid etching, and the service life of the acid etching tank is prolonged.
The cover plate 5 is provided with a small hole, and a thermometer for monitoring the temperature of the acid etching solution is inserted through the small hole.
Through the technical scheme, the temperature of the acid etching liquid is detected and monitored in real time by using the thermometer. In the operation process, the constant temperature value of the constant temperature water bath 1 is set to be 5 ℃ higher than the specified heating temperature of the acid etching liquid, and in the test operation, the acid etching liquid temperature is 2-4 ℃ lower than the temperature displayed by the water bath, so that the test requirement is met.
The implementation principle of the embodiment is as follows: for a comprehensive detection department with small low-power sample batch and a detection period allowed to be longer, such as more than 1 hour, in an existing laboratory, a constant-temperature water bath 1 is utilized to indirectly heat acid etching liquid through a specially-made acid etching groove 3, so that the low-power tissue and defect are etched, and the harmless treatment of acid-containing gas, washing wastewater and waste acid liquid volatilized in the sample etching process is realized by utilizing a cover plate 5 and existing ventilation cabinets and other safety and environmental protection facilities of the laboratory, so that a special low-power detection laboratory and supporting facilities thereof are saved, the equipment investment cost is saved for a unit, the early preparation work and the post-treatment operation of thermal acid etching are simplified, and the thermal acid etching detection cost is reduced.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A thermal acid etching device is characterized in that: including the constant temperature water bath, the inner chamber of constant temperature water bath is provided with the shelf, acid etching groove has been placed on the shelf, acid etching liquid is equipped with in the acid etching groove, based on temperature in the constant temperature water bath is right acid etching liquid in the acid etching groove heats, through acid etching liquid carries out the acid etching reaction to the steel.
2. A thermal acid etching apparatus as claimed in claim 1, wherein: and 5mm-50mm intervals are reserved between the acid etching tank and each side wall of the constant-temperature water bath kettle.
3. A thermal acid etching apparatus as claimed in claim 1, wherein: lifting lugs are welded on the upper edge of the side wall of the acid etching groove.
4. A thermal acid etching apparatus according to claim 3, wherein: the welding of lug has two, two the lug symmetry sets up on two lateral walls of acid etching groove.
5. A thermal acid etching apparatus as claimed in claim 1, wherein: and a cover plate is arranged at an opening at the top of the acid etching groove and is in seamless fit with the opening of the acid etching groove.
6. A thermal acid etching apparatus according to claim 5, wherein: the cover plate is made of glass fiber reinforced plastics.
7. A thermal acid etching apparatus as claimed in claim 1, wherein: the acid etching groove is made of nickel-based corrosion-resistant alloy.
8. A thermal acid etching apparatus according to claim 5, wherein: the cover plate is provided with a small hole, and a thermometer for monitoring the temperature of the acid etching solution is inserted through the small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860735.6U CN211036111U (en) | 2019-10-31 | 2019-10-31 | Thermal acid etching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860735.6U CN211036111U (en) | 2019-10-31 | 2019-10-31 | Thermal acid etching device |
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| Publication Number | Publication Date |
|---|---|
| CN211036111U true CN211036111U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921860735.6U Active CN211036111U (en) | 2019-10-31 | 2019-10-31 | Thermal acid etching device |
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| CN (1) | CN211036111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964856A (en) * | 2021-02-09 | 2021-06-15 | 鞍钢股份有限公司 | Method for detecting surface crack defects of continuous casting round billet |
-
2019
- 2019-10-31 CN CN201921860735.6U patent/CN211036111U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964856A (en) * | 2021-02-09 | 2021-06-15 | 鞍钢股份有限公司 | Method for detecting surface crack defects of continuous casting round billet |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Feng Inventor after: Qiu Weiming Inventor after: Xiao Jiguang Inventor after: Guo Jun Inventor after: Lv Mingke Inventor before: Chen Feng Inventor before: Qiu Weiming Inventor before: Xiao Jiguang Inventor before: Guo Jun Inventor before: Lv Mingke |
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| CB03 | Change of inventor or designer information |