CN111257408B - Effervescent tablet containing nano magnetic powder and application thereof - Google Patents
Effervescent tablet containing nano magnetic powder and application thereof Download PDFInfo
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- 239000007938 effervescent tablet Substances 0.000 title claims abstract description 69
- 239000006247 magnetic powder Substances 0.000 title claims abstract description 59
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000005291 magnetic effect Effects 0.000 claims abstract description 18
- 239000000725 suspension Substances 0.000 claims abstract description 16
- 229920001400 block copolymer Polymers 0.000 claims abstract description 12
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims abstract description 12
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 11
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 10
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims abstract description 10
- 235000010234 sodium benzoate Nutrition 0.000 claims abstract description 10
- 239000004299 sodium benzoate Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000003826 tablet Substances 0.000 claims abstract description 8
- 229940060377 triethanolamine benzoate Drugs 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- 230000007547 defect Effects 0.000 claims description 8
- YRIZYWQGELRKNT-UHFFFAOYSA-N 1,3,5-trichloro-1,3,5-triazinane-2,4,6-trione Chemical compound ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O YRIZYWQGELRKNT-UHFFFAOYSA-N 0.000 claims description 7
- 229950009390 symclosene Drugs 0.000 claims description 7
- 239000013530 defoamer Substances 0.000 claims description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical group O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 24
- 230000035945 sensitivity Effects 0.000 abstract description 13
- 239000003623 enhancer Substances 0.000 abstract description 9
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000002518 antifoaming agent Substances 0.000 abstract description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 14
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 12
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 9
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000006260 foam Substances 0.000 description 6
- 239000001103 potassium chloride Substances 0.000 description 6
- 235000011164 potassium chloride Nutrition 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009659 non-destructive testing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical group [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/0302—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
- H01F1/0311—Compounds
- H01F1/0313—Oxidic compounds
- H01F1/0315—Ferrites
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Power Engineering (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicinal Preparation (AREA)
Abstract
本发明属于检测技术领域，公开了一种含纳米磁粉的泡腾片，包括以下组分：纳米磁粉、分散剂、消泡剂、成型剂、碱性碳酸盐和成膜剂；所述纳米磁粉为纳米Fe2O3。该泡腾片中纳米磁粉同时与聚氧乙烯聚氧丙烯嵌段共聚物、三乙醇胺或苯甲酸钠同时使用，使得泡腾片与水混合制得水磁悬液，能保持水磁悬液中纳米磁粉分散均匀、稳定，也有助于提高检测的灵敏度。该泡腾片所用的纳米磁粉为纳米γ‑Fe2O3，纳米γ‑Fe2O3为红色，制得的泡腾片用于检测工件损伤时，无需辅助喷涂反差增色剂，使用方便，且降低检测成本，能检测的裂缝可达到宽0.1μm，长0.5μm，检测灵敏度高。本发明所述泡腾片能制备成固定规格质量的片剂，使用和运输方便。The invention belongs to the technical field of detection, and discloses an effervescent tablet containing nanometer magnetic powder, comprising the following components: nanometer magnetic powder, dispersant, defoaming agent, forming agent, alkaline carbonate and film-forming agent; The magnetic powder is nano Fe 2 O 3 . The nanometer magnetic powder in the effervescent tablet is simultaneously used with polyoxyethylene polyoxypropylene block copolymer, triethanolamine or sodium benzoate, so that the effervescent tablet is mixed with water to obtain a water magnetic suspension, which can keep the nanometer particles in the water magnetic suspension. The dispersion of magnetic powder is uniform and stable, which also helps to improve the sensitivity of detection. The nanometer magnetic powder used in the effervescent tablet is nanometer γ-Fe 2 O 3 , and the nanometer γ-Fe 2 O 3 is red. When the prepared effervescent tablet is used to detect the damage of the workpiece, there is no need to assist spraying of contrast color enhancer, and it is convenient to use. In addition, the detection cost is reduced, the cracks that can be detected can reach a width of 0.1 μm and a length of 0.5 μm, and the detection sensitivity is high. The effervescent tablet of the present invention can be prepared into tablets of fixed specification and quality, and is convenient to use and transport.
Description
技术领域technical field
本发明属于检测技术领域，特别涉及一种含纳米磁粉的泡腾片及其应用。The invention belongs to the technical field of detection, in particular to an effervescent tablet containing nanometer magnetic powder and its application.
背景技术Background technique
无损检测是在不损坏、不改变被检测对象(例如金属工件)理化状态的情况下，对被检测对象的内部及表面的结构、性质、状态进行高灵敏度和高可靠性的检查，从而可以得知检测对象的完整性、安全性以及其他性能指标。磁粉检测是利用磁现象来检测工件中缺陷的方法，是一种无损检测方法，通常被用来发现铁磁性材料或工件的表面和近表面缺陷，适用于检测工件表面尺寸很小、间隙窄(如可检测出宽0.1mm、长为10微米级的裂纹)和目视难以看出的缺陷，包括裂纹、白点、发纹、折叠、疏松、冷隔、气孔和夹渣等。马氏体不锈钢和沉淀硬化不锈钢材料(如1Cr17Ni7)具有磁性，因而也可以进行磁粉检测。Non-destructive testing is a high-sensitivity and high-reliability inspection of the internal and surface structure, properties and states of the detected object without damaging or changing the physical and chemical state of the detected object (such as a metal workpiece). Know the integrity, security and other performance indicators of the detection object. Magnetic particle testing is a method of using magnetic phenomena to detect defects in workpieces. It is a non-destructive testing method. It is usually used to find surface and near-surface defects of ferromagnetic materials or workpieces. For example, cracks with a width of 0.1 mm and a length of 10 microns can be detected) and defects that are difficult to see visually, including cracks, white spots, hair lines, folds, looseness, cold insulation, pores and slag inclusions. Martensitic stainless steel and precipitation hardening stainless steel materials (such as 1Cr17Ni7) are magnetic, so magnetic particle testing is also possible.
目前在无损检验行业，一般采用磁膏或磁粉与润湿剂、分散剂、防腐剂等试剂现场配制水磁悬液，然后对工件进行检测，但是在现场的实际应用中，由于工况条件的限制，很难做到准确的配置水磁悬液，会使水磁悬液的浓度配置过高或者过低，检测中会有误判或漏检，影响检测结果。而且，利用磁膏或磁粉现场配制水磁悬液来检测工件灵敏度一般只能达到长0.1mm、宽为10微米级的裂纹的灵敏度，对更细小的裂纹无法检测。另外，磁膏或磁粉在常规条件下保存稳定性较差，运输也不太方便。特别的，现有技术中，采用磁膏或磁粉检测工件表面，通常需要先对工件表面喷涂反差增强剂(反差增强剂的作用是凸显泡腾片磁粉颜色与工件颜色的差别，有利于磁探机读取工件表面裂缝数据)，常用的反差增强剂的主要成分为丙酮与氧化锌的混合物。喷涂反差增强剂虽然有利于提高检测的灵敏度，但使得检测过程繁琐，也增加了检测成本。At present, in the non-destructive testing industry, magnetic paste or magnetic powder and wetting agent, dispersant, preservative and other reagents are generally used to prepare aqueous magnetic suspension on site, and then the workpiece is tested. Due to the limitation, it is difficult to accurately configure the hydromagnetic suspension, which will cause the concentration of the hydromagnetic suspension to be too high or too low, and there will be misjudgments or missed detections in the detection, which will affect the detection results. Moreover, the sensitivity of using magnetic paste or magnetic powder to prepare water-magnetic suspension on site to detect workpieces generally can only reach the sensitivity of cracks with a length of 0.1 mm and a width of 10 microns, and cannot detect finer cracks. In addition, magnetic paste or magnetic powder has poor storage stability under conventional conditions, and is also inconvenient to transport. In particular, in the prior art, when magnetic paste or magnetic powder is used to detect the surface of the workpiece, it is usually necessary to spray a contrast enhancer on the surface of the workpiece (the role of the contrast enhancer is to highlight the difference between the color of the effervescent tablet magnetic powder and the color of the workpiece, which is beneficial for magnetic detection. The main component of the commonly used contrast enhancer is a mixture of acetone and zinc oxide. Although spraying a contrast enhancer is beneficial to improve the detection sensitivity, it makes the detection process cumbersome and increases the detection cost.
因此，希望提供一种检测灵敏度高，稳定性好，无需反差增强剂辅助使用和运输方便的磁性检测用材料。Therefore, it is desirable to provide a magnetic detection material with high detection sensitivity, good stability, and convenient use and transportation without the aid of a contrast enhancer.
发明内容SUMMARY OF THE INVENTION
本发明旨在至少解决上述现有技术中存在的技术问题之一。为此，本发明提出一种含纳米磁粉的泡腾片及其应用。本发明所述的含磁粉的泡腾片，其检测工件的灵敏度高，而且稳定性好，无需反差增强剂辅助使用。The present invention aims to solve at least one of the technical problems existing in the above-mentioned prior art. Therefore, the present invention proposes an effervescent tablet containing nanometer magnetic powder and its application. The magnetic powder-containing effervescent tablet of the present invention has high sensitivity for detecting workpieces and good stability, and does not need the auxiliary use of a contrast enhancer.
一种含纳米磁粉的泡腾片，包括以下组分：纳米磁粉、分散剂、消泡剂、成型剂、碱性碳酸盐和成膜剂；所述纳米磁粉为纳米Fe2O3。An effervescent tablet containing nanometer magnetic powder, comprising the following components: nanometer magnetic powder, dispersant, defoaming agent, forming agent, alkaline carbonate and film-forming agent; the nanometer magnetic powder is nanometer Fe 2 O 3 .
优选的，所述纳米Fe2O3为纳米γ-Fe2O3。纳米γ-Fe2O3为红色，制得的泡腾片用于检测工件损伤时，无需辅助喷涂反差增色剂，使用方便，而降低检测成本，检测灵敏度也高。Preferably, the nano Fe 2 O 3 is nano γ-Fe 2 O 3 . The nano-γ-Fe 2 O 3 is red. When the prepared effervescent tablet is used to detect the damage of the workpiece, there is no need for auxiliary spraying of the contrast color enhancer, the use is convenient, the detection cost is reduced, and the detection sensitivity is also high.
优选的，所述纳米磁粉的粒径大小为1-100nm；进一步优选的，所述纳米磁粉的粒径大小为30-50nm。Preferably, the particle size of the nano-magnetic powder is 1-100 nm; further preferably, the particle size of the nano-magnetic powder is 30-50 nm.
优选的，所述分散剂选自聚氧乙烯聚氧丙烯嵌段共聚物、三乙醇胺或苯甲酸钠中的至少一种；进一步优选的，所述亚硝酸盐为亚硝酸钠。所述分散剂的作用在于，当泡腾片与水混合制得水磁悬液，能保持水磁悬液中纳米磁粉分散均匀、稳定，也有助于提高检测的灵敏度。Preferably, the dispersing agent is selected from at least one of polyoxyethylene polyoxypropylene block copolymer, triethanolamine or sodium benzoate; further preferably, the nitrite is sodium nitrite. The function of the dispersant is that, when the effervescent tablet is mixed with water to prepare a hydromagnetic suspension, it can keep the nano-magnetic powder dispersed uniformly and stably in the hydromagnetic suspension, and also helps to improve the detection sensitivity.
优选的，所述消泡剂为纳米二氧化硅。Preferably, the defoamer is nano-silica.
优选的，所述成型剂为氯化钠、氯化钾或氯化镁中的至少一种。Preferably, the forming agent is at least one of sodium chloride, potassium chloride or magnesium chloride.
优选的，所述碱性碳酸盐为碳酸钠、碳酸钾、碳酸氢钠或碳酸氢钾中的至少一种；进一步优选的，所述碱性碳酸盐为碳酸氢钠。碱性碳酸盐使得泡腾片在水中快速崩解。Preferably, the alkaline carbonate is at least one of sodium carbonate, potassium carbonate, sodium bicarbonate or potassium bicarbonate; further preferably, the alkaline carbonate is sodium bicarbonate. Alkaline carbonates cause effervescent tablets to disintegrate quickly in water.
优选的，所述成膜剂为吡咯烷酮类物质，进一步优选的，所述成膜剂为聚乙烯吡咯烷酮。成膜剂能形成优异的连续涂膜，有助于磁粉的润湿分散，有利于形成稳定的泡腾片。Preferably, the film-forming agent is pyrrolidone, and further preferably, the film-forming agent is polyvinylpyrrolidone. The film-forming agent can form an excellent continuous coating film, which is helpful for the wetting and dispersing of the magnetic powder, and is conducive to the formation of stable effervescent tablets.
优选的，所述泡腾片还含有硫酸盐；进一步优选的，所述硫酸盐为硫酸镁；有助于提高泡腾片的稳定性。Preferably, the effervescent tablet further contains sulfate; further preferably, the sulfate is magnesium sulfate; it helps to improve the stability of the effervescent tablet.
优选的，所述泡腾片还含有还含有三氯异氰尿酸。Preferably, the effervescent tablet further contains trichloroisocyanuric acid.
优选的，一种含纳米磁粉的泡腾片，按质量百分数计，包括以下组分：纳米磁粉20-35％、分散剂30-40％、消泡剂1-3％、成型剂5-15％、碱性碳酸盐3-7％、成膜剂余量。Preferably, an effervescent tablet containing nanometer magnetic powder, in mass percentage, comprises the following components: 20-35% of nanometer magnetic powder, 30-40% of dispersant, 1-3% of defoamer, 5-15% of molding agent %, alkaline carbonate 3-7%, film-forming agent balance.
进一步优选的，一种含纳米磁粉的泡腾片，按质量百分数计，包括以下组分：纳米磁粉25％、聚氧乙烯聚氧丙烯嵌段共聚物13％、三乙醇胺7％、苯甲酸钠12％、消泡剂3％、成型剂10％、碱性碳酸盐5％、成膜剂2％、硫酸镁15％、三氯异氰尿酸8％。Further preferably, an effervescent tablet containing nanometer magnetic powder, by mass percentage, comprises the following components: nanometer magnetic powder 25%, polyoxyethylene polyoxypropylene block copolymer 13%, triethanolamine 7%, sodium benzoate 12% %, defoamer 3%, molding agent 10%, alkaline carbonate 5%, film-forming agent 2%, magnesium sulfate 15%, trichloroisocyanuric acid 8%.
更优选的，一种含磁粉的泡腾片，按质量百分数计，由包括以下组分：纳米磁粉20％、聚氧乙烯聚氧丙烯嵌段共聚物14％、三乙醇胺8％、苯甲酸钠13％、消泡剂3％、成型剂10％、碱性碳酸盐7％、成膜剂2％、硫酸镁15％、三氯异氰尿酸8％。More preferably, an effervescent tablet containing magnetic powder, by mass percentage, comprises the following components: 20% of nanometer magnetic powder, 14% of polyoxyethylene polyoxypropylene block copolymer, 8% of triethanolamine, 13% of sodium benzoate. %, defoamer 3%, molding agent 10%, alkaline carbonate 7%, film-forming agent 2%, magnesium sulfate 15%, trichloroisocyanuric acid 8%.
一种含纳米磁粉的泡腾片的制备方法，包括以下步骤：A preparation method of an effervescent tablet containing nanometer magnetic powder, comprising the following steps:
称取各组分，将磁粉与成膜剂混合，然后加入除成型剂以外的其余组分，搅拌混合均匀，再加入成型剂，搅拌混合均匀，压片成型，制得所述含磁粉的泡腾片。Weigh each component, mix the magnetic powder with the film-forming agent, then add the remaining components except the forming agent, stir and mix evenly, then add the forming agent, stir and mix evenly, and press into a tablet to form the magnetic powder-containing foam. Teng film.
优选的，将成膜剂与水混合，配制成质量浓度为8-12％的溶液，再与纳米磁粉混合。Preferably, the film-forming agent is mixed with water to prepare a solution with a mass concentration of 8-12%, and then mixed with the nano-magnetic powder.
优选的，磁粉与成膜剂混合后进行烘干，烘干是在50-80℃下干燥3-5小时。Preferably, the magnetic powder and the film-forming agent are mixed and then dried, and the drying is performed at 50-80° C. for 3-5 hours.
优选的，所述各原料的含水量小于1％(质量分数)。Preferably, the water content of each raw material is less than 1% (mass fraction).
优选的，所述压片成型过程是在压力为20-50KN下保持1-60秒。Preferably, the tablet forming process is maintained under a pressure of 20-50KN for 1-60 seconds.
优选的，泡腾片整个制备过程是在温度为18-25℃，相对湿度不大于40％的条件下进行。有利于防止泡腾片受潮。Preferably, the entire preparation process of the effervescent tablet is carried out at a temperature of 18-25° C. and a relative humidity of not more than 40%. Helps prevent effervescent tablets from getting wet.
优选的，所述泡腾片的质量规格为1g、2g、5g、8g、10g、20g、40g或50g中的任意一种。Preferably, the mass specification of the effervescent tablet is any one of 1 g, 2 g, 5 g, 8 g, 10 g, 20 g, 40 g or 50 g.
一种含纳米磁粉的泡腾片的使用方法，包括以下步骤：A method for using an effervescent tablet containing nanometer magnetic powder, comprising the following steps:
将泡腾片与水混合，形成水磁悬液，喷涂在工件表面，再用磁探机对工件表面进行磁化并检测工件表面的缺陷数据，磁探机可直接显示工件的缺陷数据，例如裂缝的长和宽。Mix the effervescent tablet with water to form a hydromagnetic suspension, spray it on the surface of the workpiece, and then use a magnetic detector to magnetize the surface of the workpiece and detect the defect data on the surface of the workpiece. The magnetic detector can directly display the defect data of the workpiece, such as cracks length and width.
优选的，泡腾片与水的用量比为40-80g:1L；进一步优选的，泡腾片与水的用量比为60g:1L。Preferably, the dosage ratio of effervescent tablet to water is 40-80g:1L; further preferably, the dosage ratio of effervescent tablet to water is 60g:1L.
优选的，所述工件为磁铁性金属工件。Preferably, the workpiece is a magnetic metal workpiece.
优选的，所述泡腾片溶于水中形成的混合物的pH为3-6。Preferably, the pH of the mixture formed by dissolving the effervescent tablet in water is 3-6.
相对于现有技术，本发明的有益效果如下：With respect to the prior art, the beneficial effects of the present invention are as follows:
(1)本发明所述泡腾片，由于所述纳米磁粉和分散剂的混合使用，特别是所述磁粉同时与聚氧乙烯聚氧丙烯嵌段共聚物、三乙醇胺或苯甲酸钠同时使用，使得泡腾片与水混合制得水磁悬液，能保持水磁悬液中纳米磁粉分散均匀、稳定，也有助于提高检测的灵敏度。(1) The effervescent tablet of the present invention, due to the mixed use of the nano-magnetic powder and the dispersant, especially the magnetic powder and the polyoxyethylene polyoxypropylene block copolymer, triethanolamine or sodium benzoate are used simultaneously, so that The effervescent tablet is mixed with water to obtain a hydromagnetic suspension, which can keep the nano-magnetic powder dispersed uniformly and stably in the hydromagnetic suspension, and also helps to improve the detection sensitivity.
(2)本发明所述泡腾片所用的纳米磁粉为纳米γ-Fe2O3，纳米γ-Fe2O3为红色，制得的泡腾片用于检测工件损伤时，无需辅助喷涂反差增色剂，使用方便，且降低检测成本，检测灵敏度也高。(2) The nanometer magnetic powder used in the effervescent tablet of the present invention is nanometer γ-Fe 2 O 3 , and the nanometer γ-Fe 2 O 3 is red. When the prepared effervescent tablet is used to detect the damage of the workpiece, no auxiliary spraying contrast is required. The color enhancer is convenient to use, reduces the detection cost, and has high detection sensitivity.
(3)本发明所述泡腾片用于工件表面和近表面缺陷检测，能检测的裂缝可达到宽0.1μm，长0.5μm，检测灵敏度高。(3) The effervescent tablet of the present invention is used for the detection of surface and near-surface defects of the workpiece, and the cracks that can be detected can reach 0.1 μm in width and 0.5 μm in length, and have high detection sensitivity.
(4)本发明所述泡腾片能制备成固定规格质量的片剂，使用和运输方便。(4) The effervescent tablet of the present invention can be prepared into a tablet of fixed specification and quality, which is convenient to use and transport.
具体实施方式Detailed ways
为了让本领域技术人员更加清楚明白本发明所述技术方案，现列举以下实施例进行说明。需要指出的是，以下实施例对本发明要求的保护范围不构成限制作用。In order to make those skilled in the art understand the technical solutions of the present invention more clearly, the following examples are now given for illustration. It should be noted that the following examples do not limit the protection scope of the present invention.
以下实施例中所用的原料、试剂或装置如无特殊说明，均可从常规商业途径得到，或者可以通过现有已知方法得到。The raw materials, reagents or devices used in the following examples can be obtained from conventional commercial channels unless otherwise specified, or can be obtained by existing known methods.
实施例1Example 1
一种含纳米磁粉的泡腾片，按质量百分数计，包括以下组分：20-30nm的Fe2O3 25g、聚氧乙烯聚氧丙烯嵌段共聚物13g、三乙醇胺7g、苯甲酸钠12g、纳米二氧化硅3g、氯化钠10g、碳酸钠5g、聚乙烯吡咯烷酮2g、硫酸镁15g、三氯异氰尿酸8g。An effervescent tablet containing nanometer magnetic powder, in terms of mass percentage, comprising the following components: 25 g of Fe 2 O 3 of 20-30 nm, 13 g of polyoxyethylene polyoxypropylene block copolymer, 7 g of triethanolamine, 12 g of sodium benzoate, Nano silicon dioxide 3g, sodium chloride 10g, sodium carbonate 5g, polyvinylpyrrolidone 2g, magnesium sulfate 15g, trichloroisocyanuric acid 8g.
一种含纳米磁粉的泡腾片的制备方法，包括以下步骤：A preparation method of an effervescent tablet containing nanometer magnetic powder, comprising the following steps:
称取各组分，将聚乙烯吡咯烷酮与水混合，配制成质量浓度为9％的溶液，再加入Fe2O3，混合，烘干，烘干是在60℃下干燥4小时，然后加入除氯化钠以外的其余组分，搅拌混合均匀，再加入氯化钠，搅拌混合均匀，压片成型，压片成型过程是在压力为40KN下保持30秒，制得含纳米磁粉的泡腾片。Weigh each component, mix polyvinylpyrrolidone and water to prepare a solution with a mass concentration of 9%, then add Fe 2 O 3 , mix, and dry. For the rest of the components other than sodium chloride, stir and mix evenly, then add sodium chloride, stir and mix evenly, and press into tablets. The process of tableting and forming is to keep the pressure of 40KN for 30 seconds to obtain effervescent tablets containing nano-magnetic powder. .
泡腾片整个制备过程是在温度为20℃，相对湿度为30％的条件下进行。The entire preparation process of the effervescent tablet is carried out under the conditions of a temperature of 20° C. and a relative humidity of 30%.
实施例2Example 2
一种含纳米磁粉的泡腾片，按质量百分数计，由包括以下组分：30-50nm的γ-Fe2O320g、聚氧乙烯聚氧丙烯嵌段共聚物14g、三乙醇胺8g、苯甲酸钠13g、纳米二氧化硅3g、氯化钾10g、碱性碳酸盐7g、聚乙烯吡咯烷酮2g、硫酸镁15g、三氯异氰尿酸8g。An effervescent tablet containing nanometer magnetic powder, calculated by mass percentage, comprising the following components: 20 g of γ-Fe 2 O 3 of 30-50 nm, 14 g of polyoxyethylene polyoxypropylene block copolymer, 8 g of triethanolamine, benzene 13g of sodium formate, 3g of nano-silica, 10g of potassium chloride, 7g of alkaline carbonate, 2g of polyvinylpyrrolidone, 15g of magnesium sulfate, and 8g of trichloroisocyanuric acid.
一种含纳米磁粉的泡腾片的制备方法，包括以下步骤：A preparation method of an effervescent tablet containing nanometer magnetic powder, comprising the following steps:
称取各组分，将聚乙烯吡咯烷酮与水混合，配制成质量浓度为12％的溶液，再加入γ-Fe2O3，烘干，烘干是在80℃下干燥3.5小时，然后加入除氯化钾以外的其余组分，搅拌混合均匀，再加入氯化钾，搅拌混合均匀，压片成型，压片成型过程是在压力为50KN下保持40秒，制得含纳米磁粉的泡腾片。Weigh each component, mix polyvinylpyrrolidone and water to prepare a solution with a mass concentration of 12%, then add γ-Fe 2 O 3 , and dry it. For the remaining components other than potassium chloride, stir and mix evenly, then add potassium chloride, stir and mix evenly, and form into tablets. The process of tableting and forming is to keep the pressure of 50KN for 40 seconds to obtain effervescent tablets containing nano-magnetic powder. .
泡腾片整个制备过程是在温度为25℃，相对湿度为25％的条件下进行。The entire preparation process of the effervescent tablet is carried out under the conditions of a temperature of 25° C. and a relative humidity of 25%.
实施例3Example 3
一种含纳米磁粉的泡腾片，按质量百分数计，包括以下组分：40-60nm的γ-Fe2O335g、聚氧乙烯聚氧丙烯嵌段共聚物16g、苯甲酸钠20g、纳米二氧化硅2g、氯化钠9g、碳酸氢钠7g、聚乙烯吡咯烷酮11g。An effervescent tablet containing nanometer magnetic powder, in mass percentage, comprising the following components: 40-60nm γ-Fe 2 O 3 35g, polyoxyethylene polyoxypropylene block copolymer 16g, sodium benzoate 20g, 2 g of silica, 9 g of sodium chloride, 7 g of sodium bicarbonate, and 11 g of polyvinylpyrrolidone.
一种含纳米磁粉的泡腾片的制备方法，包括以下步骤：A preparation method of an effervescent tablet containing nanometer magnetic powder, comprising the following steps:
称取各组分，将聚乙烯吡咯烷酮与水混合，配制成质量浓度为6％的溶液，再加入γ-Fe2O3，烘干，烘干是在65℃下干燥3.5小时，然后加入除氯化钠以外的其余组分，搅拌混合均匀，再加入氯化钠，搅拌混合均匀，压片成型，压片成型过程是在压力为40KN下保持60秒，制得含纳米磁粉的泡腾片。Weigh each component, mix polyvinylpyrrolidone and water to prepare a solution with a mass concentration of 6%, then add γ-Fe 2 O 3 , dry it, and dry it at 65°C for 3.5 hours, and then add in For the rest of the components other than sodium chloride, stir and mix evenly, then add sodium chloride, stir and mix evenly, and form into tablets. The process of tableting and forming is to keep the pressure of 40KN for 60 seconds to obtain effervescent tablets containing nano-magnetic powder. .
泡腾片整个制备过程是在温度为20℃，相对湿度为30％的条件下进行。The entire preparation process of the effervescent tablet is carried out under the conditions of a temperature of 20° C. and a relative humidity of 30%.
实施例4Example 4
一种含纳米磁粉的泡腾片，按质量百分数计，包括以下组分：40-60nm的Fe2O3 32g、聚氧乙烯聚氧丙烯嵌段共聚物15g、三乙醇胺15g、纳米二氧化硅3g、氯化钾12g、碳酸钾10g、聚乙烯吡咯烷酮13g。An effervescent tablet containing nanometer magnetic powder, in mass percentage, comprising the following components: 32g Fe 2 O 3 of 40-60nm, 15g polyoxyethylene polyoxypropylene block copolymer, 15g triethanolamine, nano silicon dioxide 3g, potassium chloride 12g, potassium carbonate 10g, polyvinylpyrrolidone 13g.
一种含磁粉的泡腾片的制备方法，包括以下步骤：A preparation method of an effervescent tablet containing magnetic powder, comprising the following steps:
称取各组分，将聚乙烯吡咯烷酮与水混合，配制成质量浓度为8％的溶液，再加入Fe3O4，烘干，烘干是在70℃下干燥3小时，然后加入除氯化钾以外的其余组分，搅拌混合均匀，再加入氯化钾，搅拌混合均匀，压片成型，压片成型过程是在压力为45KN下保持50秒，制得含纳米磁粉的泡腾片。Weigh each component, mix polyvinylpyrrolidone and water to prepare a solution with a mass concentration of 8%, then add Fe 3 O 4 , dry it, and dry it at 70°C for 3 hours, then add dechlorination The remaining components other than potassium are stirred and mixed evenly, then potassium chloride is added, stirred and mixed evenly, and tableting is formed. The tableting process is held under the pressure of 45KN for 50 seconds to obtain nano-magnetic powder-containing effervescent tablets.
对比例1Comparative Example 1
与实施例2相比，对比例1中不含有聚氧乙烯聚氧丙烯嵌段共聚物、三乙醇胺或苯甲酸钠，其余组分与制备方法与实施例2相同。Compared with Example 2, Comparative Example 1 does not contain polyoxyethylene polyoxypropylene block copolymer, triethanolamine or sodium benzoate, and other components and preparation methods are the same as those in Example 2.
产品效果测试Product effect test
分别将实施例1-4和对比例1制得的泡腾片，按照泡腾片与水的用量比为60g:1L进行混合，制得水磁悬液，观察泡腾片在水中的崩解时间，然后在20℃下静置2小时后，观察制得的水磁悬液的分散情况是否有沉淀出现，同时也观察消泡情况，结果如表1所示。The effervescent tablets prepared in Examples 1-4 and Comparative Example 1 were respectively mixed according to the dosage ratio of effervescent tablet and water as 60g:1L to obtain a water magnetic suspension, and the disintegration of effervescent tablet in water was observed. After standing at 20°C for 2 hours, observe whether there is precipitation in the dispersion of the prepared hydromagnetic suspension, and also observe the defoaming situation. The results are shown in Table 1.
表1：Table 1:
从表1可以看出，本发明实施例1-4制得的泡腾片的分散情况和消泡情况明显优于对比例1制得的泡腾片。As can be seen from Table 1, the dispersion and defoaming of the effervescent tablets prepared in Examples 1-4 of the present invention are significantly better than those of the effervescent tablet prepared in Comparative Example 1.
分别将实施例1-4和对比例1制得的泡腾放置在电热恒湿恒温培养箱中，箱中温度为40±2℃，相对湿度为50±10％，放置6个月，再测试泡腾片中磁粉的质量变化率，结果如表2所示。The effervescents prepared in Examples 1-4 and Comparative Example 1 were placed in an electric heating and constant-humidity constant temperature incubator, the temperature in the box was 40±2°C, and the relative humidity was 50±10%, placed for 6 months, and then tested again. The mass change rate of the magnetic powder in the effervescent tablet, the results are shown in Table 2.
表2：Table 2:
从表2可以看出，本发明实施例1-4制得的泡腾片在固态情况下稳定性良好，方便产品的保存和运输。As can be seen from Table 2, the effervescent tablets prepared in Examples 1-4 of the present invention have good stability in solid state, which is convenient for product preservation and transportation.
实施例5Example 5
一种含纳米磁粉的泡腾片的使用方法，包括以下步骤：A method for using an effervescent tablet containing nanometer magnetic powder, comprising the following steps:
将泡腾片与水的用量比按照60g:1L的比例混合，形成水磁悬液，然后将水磁悬液喷涂在20#钢工件表面，再用磁探机对工件表面进行磁化并检测工件表面的缺陷，能检测出宽0.1μm，长0.5μm的裂缝，检测灵敏度高。Mix the dosage ratio of effervescent tablet and water according to the ratio of 60g:1L to form a hydromagnetic suspension, then spray the hydromagnetic suspension on the surface of 20# steel workpiece, and then use a magnetic detector to magnetize the surface of the workpiece and detect the workpiece For surface defects, cracks with a width of 0.1 μm and a length of 0.5 μm can be detected, and the detection sensitivity is high.
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