WO2018103078A1 - Cold-rolled plate surface passivation process - Google Patents
Cold-rolled plate surface passivation process Download PDFInfo
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- WO2018103078A1 WO2018103078A1 PCT/CN2016/109245 CN2016109245W WO2018103078A1 WO 2018103078 A1 WO2018103078 A1 WO 2018103078A1 CN 2016109245 W CN2016109245 W CN 2016109245W WO 2018103078 A1 WO2018103078 A1 WO 2018103078A1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
Definitions
- the invention relates to the technical field of cold-rolled sheet passivation, in particular to a surface passivation process of a cold-rolled sheet.
- Cold rolled strips are used in a wide variety of applications, such as automotive manufacturing, electrical products, rolling stock, aviation, precision instruments, and food cans.
- Cold-rolled steel sheet is the abbreviation of ordinary carbon structural steel cold-rolled sheet, also known as cold-rolled sheet, commonly known as cold-plate, which is made of ordinary carbon-structured steel hot-rolled steel strip, which is further cold-rolled to a thickness of less than 4 mm.
- Cold-rolled steel sheet Since it is rolled at normal temperature, no scale is produced. Therefore, the surface quality of the cold plate is good, the dimensional accuracy is high, and the annealing and processing are superior to the hot-rolled steel sheet in many fields, especially in many fields. In the field of home appliance manufacturing, it has gradually replaced hot-rolled steel sheets.
- cold-rolled sheets are susceptible to edge cracking defects or surface defects after passivation, affecting the aesthetics of the cold-rolled sheets, reducing the service life of the cold-rolled sheets, and being disadvantageous for efficient use of resources.
- a surface passivation process for a cold rolled sheet comprising the following steps:
- S4 pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the water in the pickling liquid is from the purified water receiving box, and the dried cold-rolled plate is put into the acid.
- the pickling treatment is carried out in the washing liquid, and the pickling liquid after the pickling is passed into the pickling wastewater treatment equipment for purification treatment, and the purified water is also introduced into the purified water storage box for storage;
- passivation the acidified cold-rolled sheet is rapidly dried at 70-85 degrees Celsius for 5-9 minutes, and then the cold-rolled sheet is placed in a passivation device for passivation treatment, the passivation device
- the passivation liquid container is filled with a passivating agent, an additive and purified water, and the liquid mixed with the passivating agent, the additive and the purified water is completely immersed in the cold-rolled plate, wherein the passivating agent, the additive and the purified water comprise the following weight components:
- the pickling liquid in the step S4 is hydrochloric acid.
- the passivating agent in the step S5 comprises the following weight components:
- Additives include the following weight components:
- the active agent in the step S6 comprises the following weight components:
- TX-100 13-24 parts, octylphenol ethoxylate 8-11 parts.
- the invention has the beneficial effects that the invention has high temperature in the cleaning step. Soaking and then rinsing with a high-pressure water gun, so that the dirt on the surface of the cold-rolled sheet itself is thoroughly cleaned, which is beneficial to the subsequent passivation process; by immersing the cold-rolled sheet with a passivating agent and an additive, and spraying the cold-rolled with the active agent
- the surface of the plate makes the effect of passivation of the cold-rolled plate relatively good, and reduces the probability of occurrence of edge crack defects or surface defects; in the process, each sewage is purified by the sewage purification device, and reused in the next process.
- the purified water is processed to achieve the environmentally friendly production concept of circulating water.
- the invention provides a technical solution: a cold pass plate surface passivation process, comprising the following steps:
- S4 pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the pickling liquid is hydrochloric acid, the water in the pickling liquid is from the purified water receiving box, and the dried The cold-rolled plate is placed in an acid washing liquid for pickling treatment, and the pickling liquid after the pickling is passed to a pickling wastewater treatment device for purification treatment, and the purified water is also introduced into the purified water storage box for storage. ;
- the passivating agent comprises the following weight components:
- Additives include the following weight components:
- the cold-rolled sheet is sprayed by a shower device.
- the invention provides a technical solution: a cold pass plate surface passivation process, comprising the following steps:
- S4 pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the pickling liquid is hydrochloric acid, the water in the pickling liquid is from the purified water receiving box, and the dried The cold-rolled plate is placed in an acid washing liquid for pickling treatment, and the pickling liquid after the pickling is passed to a pickling wastewater treatment device for purification treatment, and the purified water is also introduced into the purified water storage box for storage. ;
- the passivating agent comprises the following weight components:
- Additives include the following weight components:
- the cold-rolled sheet is sprayed by a shower device.
- the invention provides a technical solution: a cold pass plate surface passivation process, comprising the following steps:
- S4 pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the pickling liquid is hydrochloric acid, the water in the pickling liquid is from the purified water receiving box, and the dried The cold-rolled plate is placed in an acid washing liquid for pickling treatment, and the pickling liquid after the pickling is passed to a pickling wastewater treatment device for purification treatment, and the purified water is also introduced into the purified water storage box for storage. ;
- the passivating agent comprises the following weight components:
- Additives include the following weight components:
- the cold-rolled sheet is sprayed by a shower device.
- the invention is firstly immersed in a high temperature immersion process in a cleaning step and then washed with a high pressure water gun, so that the dirt on the surface of the cold rolled plate itself is thoroughly cleaned, which facilitates the subsequent passivation process; Soaking the cold-rolled sheet with the additive and spraying the surface of the cold-rolled sheet with the active agent, so that the passivation effect of the cold-rolled sheet is better, and the probability of occurrence of edge crack defects or surface defects is reduced; in the process, each time the sewage is Purification treatment is carried out by sewage purification equipment, and the purified water is used again for processing in the next process to achieve the environmentally friendly production concept of circulating water.
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
A cold-rolled plate surface passivation process, comprising the following steps: S1: soaking; S2: cleaning; S3: sewage treatment; S4: pickling; S5: passivation, in which an acidified cold-rolled plate is rapidly dried at a temperature of 70-85 degrees Celsius for 5-9 minutes, and then the cold-rolled plate is passivated in a passivation apparatus, wherein a passivation agent, an additive and pure water are added in a passivation liquid container of the passivation apparatus, the cold-rolled plate being completely soaked in a mixed liquid of the passivation agent, the additive and the pure water, wherein the passivation agent, the additive and the pure water comprise the following components by weight: 34-56 parts passivation agent, 18-24 parts additive, 20-40 parts pure water; S6: spraying; S7: rinsing; S8: passivation testing. By means of soaking the cold-rolled plate by using a passivation agent and an additive, and spraying a surface of the cold-rolled plate with an active agent, the effect of passivation of the cold-rolled plate is better, and the probability of the occurrence of edge crack defects or surface defects is reduced.
Description
本发明涉及冷轧板钝化技术领域，具体为一种冷轧板表面钝化工艺。The invention relates to the technical field of cold-rolled sheet passivation, in particular to a surface passivation process of a cold-rolled sheet.
冷轧板带用途很广，如汽车制造、电器产品、机车车辆、航空、精密仪表、食品罐头等。Cold rolled strips are used in a wide variety of applications, such as automotive manufacturing, electrical products, rolling stock, aviation, precision instruments, and food cans.
冷轧薄钢板是普通碳素结构钢冷轧板的简称，也称冷轧板，俗称冷板，冷板是由普通碳素结构钢热轧钢带，经过进一步冷轧制成厚度小于4mm的钢板。由于在常温下轧制，不产生氧化铁皮，因此，冷板表面质量好，尺寸精度高，再加之退火处理，其机械性能和工艺性能都优于热轧薄钢板，在许多领域里，特别是家电制造领域，已逐渐用它取代热轧薄钢板。Cold-rolled steel sheet is the abbreviation of ordinary carbon structural steel cold-rolled sheet, also known as cold-rolled sheet, commonly known as cold-plate, which is made of ordinary carbon-structured steel hot-rolled steel strip, which is further cold-rolled to a thickness of less than 4 mm. Steel plate. Since it is rolled at normal temperature, no scale is produced. Therefore, the surface quality of the cold plate is good, the dimensional accuracy is high, and the annealing and processing are superior to the hot-rolled steel sheet in many fields, especially in many fields. In the field of home appliance manufacturing, it has gradually replaced hot-rolled steel sheets.
现有技术中的冷轧板钝化过后易出现边裂缺陷或者表面缺陷，影响冷轧板的美观程度，缩减了冷轧板的使用寿命，不利于资源的有效利用。In the prior art, cold-rolled sheets are susceptible to edge cracking defects or surface defects after passivation, affecting the aesthetics of the cold-rolled sheets, reducing the service life of the cold-rolled sheets, and being disadvantageous for efficient use of resources.
发明内容Summary of the invention
本发明的目的在于提供一种冷轧板表面钝化工艺，以解决上述背景技术中提出的问题。SUMMARY OF THE INVENTION It is an object of the present invention to provide a surface passivation process for cold rolled sheets to solve the problems set forth in the above background art.
为实现上述目的，本发明提供如下技术方案：一种冷轧板表面钝化工艺，包括以下步骤：To achieve the above object, the present invention provides the following technical solution: a surface passivation process for a cold rolled sheet, comprising the following steps:
S1：浸泡，将加工好的冷轧板放入浸泡液中浸泡30-120分钟，并用加热装置对浸泡液进行加温，将浸泡液的温度从常温加热到60摄氏度；S1: soaking, immersing the processed cold-rolled plate in the soaking liquid for 30-120 minutes, and heating the soaking liquid with a heating device, and heating the temperature of the soaking liquid from normal temperature to 60 degrees Celsius;
S2：清洗，将浸泡完毕的冷轧板从浸泡液中夹取至高于水平面1-2米处，并用高压水枪对冷轧板的表面冲洗3-6分钟；S2: cleaning, the soaked cold-rolled plate is taken from the soaking liquid to a height of 1-2 meters above the horizontal plane, and the surface of the cold-rolled plate is rinsed with a high-pressure water gun for 3-6 minutes;
S3：污水处理，将浸泡液与高压水枪喷射出的水集中放置在污水收集箱内，集水箱内放置有污水净化装置，将经过污水净化装置的水通入到净化水容纳箱内进行存放；
S3: sewage treatment, the water sprayed by the soaking liquid and the high-pressure water gun is concentrated in the sewage collection box, and a sewage purification device is placed in the water collection tank, and the water passing through the sewage purification device is passed into the purified water storage box for storage;
S4：酸洗，将冲洗好的冷轧板烘干，并在酸洗机组内加入酸洗液，酸洗液中的水来自净化水容纳箱中，将烘干后的冷轧板放入酸洗液中进行酸洗处理，并将酸洗结束后的酸洗液通入酸洗废水处理设备中进行净化处理，净化后的水也通入净化水容纳箱内进行存放；S4: pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the water in the pickling liquid is from the purified water receiving box, and the dried cold-rolled plate is put into the acid. The pickling treatment is carried out in the washing liquid, and the pickling liquid after the pickling is passed into the pickling wastewater treatment equipment for purification treatment, and the purified water is also introduced into the purified water storage box for storage;
S5：钝化，将酸化后的冷轧板在70-85摄氏度的温度下进行5-9分钟的快速烘干，然后将冷轧板放入钝化设备中进行钝化处理，该钝化设备的钝化液容器内添加有钝化剂、添加剂和纯净水，且钝化剂、添加剂和纯净水混合的液体完全浸泡冷轧板，其中钝化剂、添加剂和纯净水包括以下重量组份：S5: passivation, the acidified cold-rolled sheet is rapidly dried at 70-85 degrees Celsius for 5-9 minutes, and then the cold-rolled sheet is placed in a passivation device for passivation treatment, the passivation device The passivation liquid container is filled with a passivating agent, an additive and purified water, and the liquid mixed with the passivating agent, the additive and the purified water is completely immersed in the cold-rolled plate, wherein the passivating agent, the additive and the purified water comprise the following weight components:
钝化剂34-56份，添加剂18-24份，纯净水20-40份；34-56 parts of passivating agent, 18-24 parts of additive, 20-40 parts of pure water;
S6：喷淋，将经过钝化剂和添加剂浸泡后的冷轧板夹取至远离水平面1-2米处的喷淋室，喷淋室的温度为20-50摄氏度，并将喷淋装置开启，在喷淋装置内充入活性剂，利用喷淋装置对冷轧板进行环绕喷淋；S6: Spraying, the cold-rolled plate after being immersed by the passivating agent and the additive is taken to a shower room 1-2 meters away from the horizontal plane, the temperature of the spray chamber is 20-50 degrees Celsius, and the shower device is turned on. , spraying the active agent into the spraying device, and spraying the cold-rolled plate by spraying device;
S7：漂洗，钝化后的冷轧板放入清洗槽内，并通入净化水容纳箱内的净化水与漂洗液混合对冷轧板进行漂洗，漂洗后的水排放至漂洗液过滤装置中进行污水净化处理；S7: rinsing, the passivated cold-rolled plate is placed in the cleaning tank, and the purified water and the rinsing liquid in the purified water storage tank are mixed to rinse the cold-rolled plate, and the rinsed water is discharged into the rinsing liquid filtering device. Carry out sewage purification treatment;
S8：钝化测试，将漂洗后的冷轧板在室温下自然晾干并放置不少于24小时后，将冷轧板放入盐雾实验箱以检测其耐腐蚀性能。S8: Passivation test, after the rinsed cold-rolled sheet is naturally dried at room temperature and left for not less than 24 hours, the cold-rolled sheet is placed in a salt spray test chamber to test its corrosion resistance.
优选的，所述步骤S4中的酸洗液为盐酸。Preferably, the pickling liquid in the step S4 is hydrochloric acid.
优选的，所述步骤S5中的钝化剂包括以下重量组份：Preferably, the passivating agent in the step S5 comprises the following weight components:
亚硝酸钠10-18份，三价铬钝9-16份，碳酸氢钠5-8份，醋酸钠4-7份；10-18 parts of sodium nitrite, 9-16 parts of trivalent chromium, 5-8 parts of sodium hydrogencarbonate, 4-7 parts of sodium acetate;
添加剂包括以下重量组份：Additives include the following weight components:
锌酸盐镀锌2-6份，三价铬电镀锌3-5份。Zinc galvanized 2-6 parts, trivalent chromium electroplated zinc 3-5 parts.
优选的，所述步骤S6中的活性剂包括以下重量组份：Preferably, the active agent in the step S6 comprises the following weight components:
TX-100 13-24份，辛基酚聚氧乙烯醚8-11份。TX-100 13-24 parts, octylphenol ethoxylate 8-11 parts.
与现有技术相比，本发明的有益效果是：本发明在清洗的步骤中先高温
浸泡然后用高压水枪进行冲洗，使得冷轧板本身表面的污物被清洗的十分彻底，利于后面钝化工艺的进行；通过用钝化剂和添加剂浸泡冷轧板，并用活性剂喷淋冷轧板表面，使得该冷轧板钝化的效果比较好，降低出现边裂缺陷或者表面缺陷的几率；在本工艺中，每次的污水都会通过污水净化设备进行净化处理，在下一工序中再次利用净化的水进行加工，达到循环用水的环保生产理念。Compared with the prior art, the invention has the beneficial effects that the invention has high temperature in the cleaning step.
Soaking and then rinsing with a high-pressure water gun, so that the dirt on the surface of the cold-rolled sheet itself is thoroughly cleaned, which is beneficial to the subsequent passivation process; by immersing the cold-rolled sheet with a passivating agent and an additive, and spraying the cold-rolled with the active agent The surface of the plate makes the effect of passivation of the cold-rolled plate relatively good, and reduces the probability of occurrence of edge crack defects or surface defects; in the process, each sewage is purified by the sewage purification device, and reused in the next process. The purified water is processed to achieve the environmentally friendly production concept of circulating water.
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described below. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
实施例一Embodiment 1
本发明提供一种技术方案：一种冷轧板表面钝化工艺，包括以下步骤：The invention provides a technical solution: a cold pass plate surface passivation process, comprising the following steps:
S1：浸泡，将加工好的冷轧板放入浸泡液中浸泡33分钟，并用加热装置对浸泡液进行加温，将浸泡液的温度从常温加热到60摄氏度；S1: soaking, the processed cold-rolled plate is immersed in the soaking liquid for 33 minutes, and the soaking liquid is heated by a heating device, and the temperature of the soaking liquid is heated from normal temperature to 60 degrees Celsius;
S2：清洗，将浸泡完毕的冷轧板从浸泡液中夹取至高于水平面1-2米处，并用高压水枪对冷轧板的表面冲洗3分钟；S2: cleaning, the soaked cold-rolled plate is taken from the soaking liquid to a height of 1-2 meters above the horizontal plane, and the surface of the cold-rolled plate is washed with a high-pressure water gun for 3 minutes;
S3：污水处理，将浸泡液与高压水枪喷射出的水集中放置在污水收集箱内，集水箱内放置有污水净化装置，将经过污水净化装置的水通入到净化水容纳箱内进行存放；S3: sewage treatment, the water sprayed by the soaking liquid and the high-pressure water gun is concentrated in the sewage collection box, and a sewage purification device is placed in the water collection tank, and the water passing through the sewage purification device is passed into the purified water storage box for storage;
S4：酸洗，将冲洗好的冷轧板烘干，并在酸洗机组内加入酸洗液，酸洗液为盐酸,酸洗液中的水来自净化水容纳箱中，将烘干后的冷轧板放入酸洗液中进行酸洗处理，并将酸洗结束后的酸洗液通入酸洗废水处理设备中进行净化处理，净化后的水也通入净化水容纳箱内进行存放；S4: pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the pickling liquid is hydrochloric acid, the water in the pickling liquid is from the purified water receiving box, and the dried The cold-rolled plate is placed in an acid washing liquid for pickling treatment, and the pickling liquid after the pickling is passed to a pickling wastewater treatment device for purification treatment, and the purified water is also introduced into the purified water storage box for storage. ;
S5：钝化，将酸化后的冷轧板在77摄氏度的温度下进行7分钟的快速烘
干，然后将冷轧板放入钝化设备中进行钝化处理，该钝化设备的钝化液容器内添加有钝化剂、添加剂和纯净水，且钝化剂、添加剂和纯净水混合的液体完全浸泡冷轧板，其中钝化剂、添加剂和纯净水包括以下重量组份：S5: Passivation, rapid drying of the acidified cold-rolled sheet at 77 ° C for 7 minutes
Drying, and then passivating the cold-rolled plate into a passivation device, the passivation liquid container of the passivation device is added with a passivating agent, an additive and purified water, and the passivating agent, the additive and the purified water are mixed. The liquid is completely immersed in the cold rolled sheet, wherein the passivating agent, the additive and the purified water comprise the following weight components:
钝化剂45份，添加剂20份，纯净水30份。45 parts of passivating agent, 20 parts of additive, 30 parts of purified water.
钝化剂包括以下重量组份：The passivating agent comprises the following weight components:
亚硝酸钠12份，三价铬钝10份，碳酸氢钠6份，醋酸钠5份；12 parts of sodium nitrite, 10 parts of trivalent chromium, 6 parts of sodium hydrogencarbonate, 5 parts of sodium acetate;
添加剂包括以下重量组份：Additives include the following weight components:
锌酸盐镀锌3份，三价铬电镀锌3份。3 parts of zincate galvanized and 3 parts of trivalent chromium electroplated zinc.
S6：喷淋，将经过钝化剂和添加剂浸泡后的冷轧板夹取至远离水平面1-2米处的喷淋室，喷淋室的温度为20摄氏度，并将喷淋装置开启，在喷淋装置内充入活性剂，活性剂包括以下重量组份：S6: spraying, the cold-rolled plate after being immersed by the passivating agent and the additive is taken to a shower room 1-2 meters away from the horizontal plane, the temperature of the spray chamber is 20 degrees Celsius, and the shower device is turned on, The spraying device is filled with an active agent, and the active agent comprises the following weight components:
TX-100 13份，辛基酚聚氧乙烯醚8份。13 parts of TX-100, 8 parts of octylphenol ethoxylate.
利用喷淋装置对冷轧板进行环绕喷淋。The cold-rolled sheet is sprayed by a shower device.
S7：漂洗，钝化后的冷轧板放入清洗槽内，并通入净化水容纳箱内的净化水与漂洗液混合对冷轧板进行漂洗，漂洗后的水排放至漂洗液过滤装置中进行污水净化处理；S7: rinsing, the passivated cold-rolled plate is placed in the cleaning tank, and the purified water and the rinsing liquid in the purified water storage tank are mixed to rinse the cold-rolled plate, and the rinsed water is discharged into the rinsing liquid filtering device. Carry out sewage purification treatment;
S8：钝化测试，将漂洗后的冷轧板在室温下自然晾干并放置不少于24小时后，将冷轧板放入盐雾实验箱以检测其耐腐蚀性能。S8: Passivation test, after the rinsed cold-rolled sheet is naturally dried at room temperature and left for not less than 24 hours, the cold-rolled sheet is placed in a salt spray test chamber to test its corrosion resistance.
实施例二Embodiment 2
本发明提供一种技术方案：一种冷轧板表面钝化工艺，包括以下步骤：The invention provides a technical solution: a cold pass plate surface passivation process, comprising the following steps:
S1：浸泡，将加工好的冷轧板放入浸泡液中浸泡120分钟，并用加热装置对浸泡液进行加温，将浸泡液的温度从常温加热到60摄氏度；S1: soaking, the processed cold-rolled plate is immersed in the soaking liquid for 120 minutes, and the soaking liquid is heated by a heating device, and the temperature of the soaking liquid is heated from normal temperature to 60 degrees Celsius;
S2：清洗，将浸泡完毕的冷轧板从浸泡液中夹取至高于水平面1-2米处，并用高压水枪对冷轧板的表面冲洗6分钟；S2: cleaning, the soaked cold-rolled plate is taken from the soaking liquid to a height of 1-2 meters above the horizontal plane, and the surface of the cold-rolled plate is washed with a high-pressure water gun for 6 minutes;
S3：污水处理，将浸泡液与高压水枪喷射出的水集中放置在污水收集箱
内，集水箱内放置有污水净化装置，将经过污水净化装置的水通入到净化水容纳箱内进行存放；S3: sewage treatment, the water sprayed from the soaking liquid and the high-pressure water gun is concentrated in the sewage collection box
Inside, a sewage purification device is placed in the water collection tank, and the water passing through the sewage purification device is passed into the purified water storage box for storage;
S4：酸洗，将冲洗好的冷轧板烘干，并在酸洗机组内加入酸洗液，酸洗液为盐酸,酸洗液中的水来自净化水容纳箱中，将烘干后的冷轧板放入酸洗液中进行酸洗处理，并将酸洗结束后的酸洗液通入酸洗废水处理设备中进行净化处理，净化后的水也通入净化水容纳箱内进行存放；S4: pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the pickling liquid is hydrochloric acid, the water in the pickling liquid is from the purified water receiving box, and the dried The cold-rolled plate is placed in an acid washing liquid for pickling treatment, and the pickling liquid after the pickling is passed to a pickling wastewater treatment device for purification treatment, and the purified water is also introduced into the purified water storage box for storage. ;
S5：钝化，将酸化后的冷轧板在85摄氏度的温度下进行9分钟的快速烘干，然后将冷轧板放入钝化设备中进行钝化处理，该钝化设备的钝化液容器内添加有钝化剂、添加剂和纯净水，且钝化剂、添加剂和纯净水混合的液体完全浸泡冷轧板，其中钝化剂、添加剂和纯净水包括以下重量组份：S5: passivation, the acidified cold-rolled sheet is rapidly dried at 85 ° C for 9 minutes, and then the cold-rolled sheet is placed in a passivation device for passivation treatment, and the passivation solution of the passivation device The passivator, the additive and the purified water are added to the container, and the liquid mixed with the passivating agent, the additive and the purified water is completely immersed in the cold-rolled plate, wherein the passivating agent, the additive and the purified water comprise the following weight components:
钝化剂56份，添加剂24份，纯净水40份。56 parts of passivating agent, 24 parts of additive, 40 parts of purified water.
钝化剂包括以下重量组份：The passivating agent comprises the following weight components:
亚硝酸钠18份，三价铬钝16份，碳酸氢钠8份，醋酸钠7份；18 parts of sodium nitrite, 16 parts of trivalent chromium, 8 parts of sodium hydrogencarbonate, 7 parts of sodium acetate;
添加剂包括以下重量组份：Additives include the following weight components:
锌酸盐镀锌6份，三价铬电镀锌5份。6 parts of zincate galvanized and 5 parts of trivalent chromium electroplated zinc.
S6：喷淋，将经过钝化剂和添加剂浸泡后的冷轧板夹取至远离水平面2米处的喷淋室，喷淋室的温度为50摄氏度，并将喷淋装置开启，在喷淋装置内充入活性剂，活性剂包括以下重量组份：S6: Spraying, the cold-rolled plate after being immersed by the passivating agent and the additive is taken up to a shower room 2 meters away from the horizontal plane, the temperature of the spray chamber is 50 degrees Celsius, and the spray device is turned on, sprayed The device is filled with an active agent, and the active agent comprises the following weight components:
TX-100 24份，辛基酚聚氧乙烯醚11份。24 parts of TX-100, 11 parts of octylphenol ethoxylate.
利用喷淋装置对冷轧板进行环绕喷淋。The cold-rolled sheet is sprayed by a shower device.
S7：漂洗，钝化后的冷轧板放入清洗槽内，并通入净化水容纳箱内的净化水与漂洗液混合对冷轧板进行漂洗，漂洗后的水排放至漂洗液过滤装置中进行污水净化处理；S7: rinsing, the passivated cold-rolled plate is placed in the cleaning tank, and the purified water and the rinsing liquid in the purified water storage tank are mixed to rinse the cold-rolled plate, and the rinsed water is discharged into the rinsing liquid filtering device. Carry out sewage purification treatment;
S8：钝化测试，将漂洗后的冷轧板在室温下自然晾干并放置不少于24小时后，将冷轧板放入盐雾实验箱以检测其耐腐蚀性能。
S8: Passivation test, after the rinsed cold-rolled sheet is naturally dried at room temperature and left for not less than 24 hours, the cold-rolled sheet is placed in a salt spray test chamber to test its corrosion resistance.
实施例三Embodiment 3
本发明提供一种技术方案：一种冷轧板表面钝化工艺，包括以下步骤：The invention provides a technical solution: a cold pass plate surface passivation process, comprising the following steps:
S1：浸泡，将加工好的冷轧板放入浸泡液中浸泡60分钟，并用加热装置对浸泡液进行加温，将浸泡液的温度从常温加热到60摄氏度；S1: soaking, the processed cold-rolled plate is immersed in the soaking liquid for 60 minutes, and the soaking liquid is heated by a heating device, and the temperature of the soaking liquid is heated from normal temperature to 60 degrees Celsius;
S2：清洗，将浸泡完毕的冷轧板从浸泡液中夹取至高于水平面1米处，并用高压水枪对冷轧板的表面冲洗5分钟；S2: cleaning, the soaked cold-rolled plate is taken from the soaking liquid to a height of 1 m above the horizontal plane, and the surface of the cold-rolled plate is washed with a high-pressure water gun for 5 minutes;
S3：污水处理，将浸泡液与高压水枪喷射出的水集中放置在污水收集箱内，集水箱内放置有污水净化装置，将经过污水净化装置的水通入到净化水容纳箱内进行存放；S3: sewage treatment, the water sprayed by the soaking liquid and the high-pressure water gun is concentrated in the sewage collection box, and a sewage purification device is placed in the water collection tank, and the water passing through the sewage purification device is passed into the purified water storage box for storage;
S4：酸洗，将冲洗好的冷轧板烘干，并在酸洗机组内加入酸洗液，酸洗液为盐酸,酸洗液中的水来自净化水容纳箱中，将烘干后的冷轧板放入酸洗液中进行酸洗处理，并将酸洗结束后的酸洗液通入酸洗废水处理设备中进行净化处理，净化后的水也通入净化水容纳箱内进行存放；S4: pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the pickling liquid is hydrochloric acid, the water in the pickling liquid is from the purified water receiving box, and the dried The cold-rolled plate is placed in an acid washing liquid for pickling treatment, and the pickling liquid after the pickling is passed to a pickling wastewater treatment device for purification treatment, and the purified water is also introduced into the purified water storage box for storage. ;
S5：钝化，将酸化后的冷轧板在80摄氏度的温度下进行7分钟的快速烘干，然后将冷轧板放入钝化设备中进行钝化处理，该钝化设备的钝化液容器内添加有钝化剂、添加剂和纯净水，且钝化剂、添加剂和纯净水混合的液体完全浸泡冷轧板，其中钝化剂、添加剂和纯净水包括以下重量组份：S5: passivation, the acidified cold-rolled sheet is rapidly dried at a temperature of 80 ° C for 7 minutes, and then the cold-rolled sheet is placed in a passivation device for passivation treatment, and the passivation solution of the passivation device The passivator, the additive and the purified water are added to the container, and the liquid mixed with the passivating agent, the additive and the purified water is completely immersed in the cold-rolled plate, wherein the passivating agent, the additive and the purified water comprise the following weight components:
钝化剂48份，添加剂20份，纯净水30份。48 parts of passivating agent, 20 parts of additive, 30 parts of purified water.
钝化剂包括以下重量组份：The passivating agent comprises the following weight components:
亚硝酸钠13份，三价铬钝12份，碳酸氢钠7份，醋酸钠6份；13 parts of sodium nitrite, 12 parts of trivalent chromium, 7 parts of sodium hydrogencarbonate, 6 parts of sodium acetate;
添加剂包括以下重量组份：Additives include the following weight components:
锌酸盐镀锌5份，三价铬电镀锌4份。5 parts of zincate galvanized and 4 parts of trivalent chromium electroplated zinc.
S6：喷淋，将经过钝化剂和添加剂浸泡后的冷轧板夹取至远离水平面2米处的喷淋室，喷淋室的温度为44摄氏度，并将喷淋装置开启，在喷淋装置内充入活性剂，活性剂包括以下重量组份：
S6: Spraying, the cold-rolled plate after being immersed by the passivating agent and the additive is clamped to a shower room 2 meters away from the horizontal plane, the temperature of the spray chamber is 44 degrees Celsius, and the spray device is turned on, sprayed The device is filled with an active agent, and the active agent comprises the following weight components:
TX-100 22份，辛基酚聚氧乙烯醚9份。22 parts of TX-100, 9 parts of octylphenol ethoxylate.
利用喷淋装置对冷轧板进行环绕喷淋。The cold-rolled sheet is sprayed by a shower device.
S7：漂洗，钝化后的冷轧板放入清洗槽内，并通入净化水容纳箱内的净化水与漂洗液混合对冷轧板进行漂洗，漂洗后的水排放至漂洗液过滤装置中进行污水净化处理；S7: rinsing, the passivated cold-rolled plate is placed in the cleaning tank, and the purified water and the rinsing liquid in the purified water storage tank are mixed to rinse the cold-rolled plate, and the rinsed water is discharged into the rinsing liquid filtering device. Carry out sewage purification treatment;
S8：钝化测试，将漂洗后的冷轧板在室温下自然晾干并放置不少于24小时后，将冷轧板放入盐雾实验箱以检测其耐腐蚀性能。S8: Passivation test, after the rinsed cold-rolled sheet is naturally dried at room temperature and left for not less than 24 hours, the cold-rolled sheet is placed in a salt spray test chamber to test its corrosion resistance.
总的来说，本发明在清洗的步骤中先高温浸泡然后用高压水枪进行冲洗，使得冷轧板本身表面的污物被清洗的十分彻底，利于后面钝化工艺的进行；通过用钝化剂和添加剂浸泡冷轧板，并用活性剂喷淋冷轧板表面，使得该冷轧板钝化的效果比较好，降低出现边裂缺陷或者表面缺陷的几率；在本工艺中，每次的污水都会通过污水净化设备进行净化处理，在下一工序中再次利用净化的水进行加工，达到循环用水的环保生产理念。In general, the invention is firstly immersed in a high temperature immersion process in a cleaning step and then washed with a high pressure water gun, so that the dirt on the surface of the cold rolled plate itself is thoroughly cleaned, which facilitates the subsequent passivation process; Soaking the cold-rolled sheet with the additive and spraying the surface of the cold-rolled sheet with the active agent, so that the passivation effect of the cold-rolled sheet is better, and the probability of occurrence of edge crack defects or surface defects is reduced; in the process, each time the sewage is Purification treatment is carried out by sewage purification equipment, and the purified water is used again for processing in the next process to achieve the environmentally friendly production concept of circulating water.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。
While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.
Claims (4)
- 一种冷轧板表面钝化工艺，其特征在于：包括以下步骤：A cold-rolled sheet surface passivation process, comprising: the following steps:S1：浸泡，将加工好的冷轧板放入浸泡液中浸泡30-120分钟，并用加热装置对浸泡液进行加温，将浸泡液的温度从常温加热到60摄氏度；S1: soaking, immersing the processed cold-rolled plate in the soaking liquid for 30-120 minutes, and heating the soaking liquid with a heating device, and heating the temperature of the soaking liquid from normal temperature to 60 degrees Celsius;S2：清洗，将浸泡完毕的冷轧板从浸泡液中夹取至高于水平面1-2米处，并用高压水枪对冷轧板的表面冲洗3-6分钟；S2: cleaning, the soaked cold-rolled plate is taken from the soaking liquid to a height of 1-2 meters above the horizontal plane, and the surface of the cold-rolled plate is rinsed with a high-pressure water gun for 3-6 minutes;S3：污水处理，将浸泡液与高压水枪喷射出的水集中放置在污水收集箱内，集水箱内放置有污水净化装置，将经过污水净化装置的水通入到净化水容纳箱内进行存放；S3: sewage treatment, the water sprayed by the soaking liquid and the high-pressure water gun is concentrated in the sewage collection box, and a sewage purification device is placed in the water collection tank, and the water passing through the sewage purification device is passed into the purified water storage box for storage;S4：酸洗，将冲洗好的冷轧板烘干，并在酸洗机组内加入酸洗液，酸洗液中的水来自净化水容纳箱中，将烘干后的冷轧板放入酸洗液中进行酸洗处理，并将酸洗结束后的酸洗液通入酸洗废水处理设备中进行净化处理，净化后的水也通入净化水容纳箱内进行存放；S4: pickling, drying the washed cold-rolled plate, and adding the pickling liquid to the pickling unit, the water in the pickling liquid is from the purified water receiving box, and the dried cold-rolled plate is put into the acid. The pickling treatment is carried out in the washing liquid, and the pickling liquid after the pickling is passed into the pickling wastewater treatment equipment for purification treatment, and the purified water is also introduced into the purified water storage box for storage;S5：钝化，将酸化后的冷轧板在70-85摄氏度的温度下进行5-9分钟的快速烘干，然后将冷轧板放入钝化设备中进行钝化处理，该钝化设备的钝化液容器内添加有钝化剂、添加剂和纯净水，且钝化剂、添加剂和纯净水混合的液体完全浸泡冷轧板，其中钝化剂、添加剂和纯净水包括以下重量组份：S5: passivation, the acidified cold-rolled sheet is rapidly dried at 70-85 degrees Celsius for 5-9 minutes, and then the cold-rolled sheet is placed in a passivation device for passivation treatment, the passivation device The passivation liquid container is filled with a passivating agent, an additive and purified water, and the liquid mixed with the passivating agent, the additive and the purified water is completely immersed in the cold-rolled plate, wherein the passivating agent, the additive and the purified water comprise the following weight components:钝化剂34-56份，添加剂18-24份，纯净水20-40份；34-56 parts of passivating agent, 18-24 parts of additive, 20-40 parts of pure water;S6：喷淋，将经过钝化剂和添加剂浸泡后的冷轧板夹取至远离水平面1-2米处的喷淋室，喷淋室的温度为20-50摄氏度，并将喷淋装置开启，在喷淋装置内充入活性剂，利用喷淋装置对冷轧板进行环绕喷淋；S6: Spraying, the cold-rolled plate after being immersed by the passivating agent and the additive is taken to a shower room 1-2 meters away from the horizontal plane, the temperature of the spray chamber is 20-50 degrees Celsius, and the shower device is turned on. , spraying the active agent into the spraying device, and spraying the cold-rolled plate by spraying device;S7：漂洗，钝化后的冷轧板放入清洗槽内，并通入净化水容纳箱内的净化水与漂洗液混合对冷轧板进行漂洗，漂洗后的水排放至漂洗液过滤装置中进行污水净化处理；S7: rinsing, the passivated cold-rolled plate is placed in the cleaning tank, and the purified water and the rinsing liquid in the purified water storage tank are mixed to rinse the cold-rolled plate, and the rinsed water is discharged into the rinsing liquid filtering device. Carry out sewage purification treatment;S8：钝化测试，将漂洗后的冷轧板在室温下自然晾干并放置不少于24小时后，将冷轧板放入盐雾实验箱以检测其耐腐蚀性能。 S8: Passivation test, after the rinsed cold-rolled sheet is naturally dried at room temperature and left for not less than 24 hours, the cold-rolled sheet is placed in a salt spray test chamber to test its corrosion resistance.
- 根据权利要求1所述的一种冷轧板表面钝化工艺，其特征在于：所述步骤S4中的酸洗液为盐酸。A cold-rolled sheet surface passivation process according to claim 1, wherein the pickling liquid in the step S4 is hydrochloric acid.
- 根据权利要求1所述的一种冷轧板表面钝化工艺，其特征在于：所述步骤S5中的钝化剂包括以下重量组份：A cold-rolled sheet surface passivation process according to claim 1, wherein the passivating agent in the step S5 comprises the following weight components:亚硝酸钠10-18份，三价铬钝9-16份，碳酸氢钠5-8份，醋酸钠4-7份；10-18 parts of sodium nitrite, 9-16 parts of trivalent chromium, 5-8 parts of sodium hydrogencarbonate, 4-7 parts of sodium acetate;添加剂包括以下重量组份：Additives include the following weight components:锌酸盐镀锌2-6份，三价铬电镀锌3-5份。Zinc galvanized 2-6 parts, trivalent chromium electroplated zinc 3-5 parts.
- 根据权利要求1所述的一种冷轧板表面钝化工艺，其特征在于：所述步骤S6中的活性剂包括以下重量组份：A cold-rolled sheet surface passivation process according to claim 1, wherein the active agent in the step S6 comprises the following weight components:TX-100 13-24份，辛基酚聚氧乙烯醚8-11份。 TX-100 13-24 parts, octylphenol ethoxylate 8-11 parts.
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