WO2021217950A1 - Drawing and rust removal process for steel wire - Google Patents

Drawing and rust removal process for steel wire Download PDF

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Publication number
WO2021217950A1
WO2021217950A1 PCT/CN2020/108795 CN2020108795W WO2021217950A1 WO 2021217950 A1 WO2021217950 A1 WO 2021217950A1 CN 2020108795 W CN2020108795 W CN 2020108795W WO 2021217950 A1 WO2021217950 A1 WO 2021217950A1
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WO
WIPO (PCT)
Prior art keywords
wire
pickling
removing rust
steel wire
steel
Prior art date
Application number
PCT/CN2020/108795
Other languages
French (fr)
Chinese (zh)
Inventor
张丁南
Original Assignee
苏州强新合金材料科技有限公司
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Publication of WO2021217950A1 publication Critical patent/WO2021217950A1/en

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Classifications

    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel

Definitions

  • the invention relates to a drawing process for removing rust from steel wire rods.
  • wire drawing In the production process of steel wire rod, the wire rod needs to be drawn, commonly known as wire drawing.
  • wire drawing powder the main component is calcium stearate
  • wire drawing powder the main component is calcium stearate
  • a part of the wire drawing powder will remain on the surface of the wire, and the heat treatment will form surface carbon due to high temperature sintering. It is difficult to clean it thoroughly after pickling, which not only affects the quality of the wire, but also increases the processing cost and affects the efficiency of the company.
  • the present invention aims to provide a steel wire drawing process for removing rust.
  • the wire rod can be formed directly after drawing, and no extra process is required for operation. Production cost, improve production quality.
  • a drawing and rust removal process for steel wire rod the production process is as follows:
  • the wire rod is pickled after heat treatment
  • the second step is to clean the pickled wire with high pressure
  • the third step is to rinse in the washing tank
  • the fourth step is to expose to the air after cleaning to increase oxidation
  • the fifth step is to enter the hydrochloric acid tank again for secondary pickling
  • the next step is carried out after the second pickling.
  • the pickling time is 15-30 minutes.
  • the pH value of the washing tank is set to 1-2, and the rinsing time does not exceed 1 minute.
  • the exposure time is 4-8 hours.
  • the second pickling adopts rapid pickling, and the time is 1-3 minutes.
  • the pickling can be repeated once, and no more than two repetitions should be made under the premise of meeting the quality requirements.
  • the beneficial effect of the present invention is that the drawing and rust removal process for steel wire rods provided by the present invention can meet the requirements for the removal of surface carbon after heat treatment of various medium and low-carbon steel and chromium-molybdenum alloy steel materials. Treatment of the wire surface can effectively improve the surface quality of the wire after forming, and at the same time, it is no longer necessary to add other processes and save costs.
  • the invention provides a drawing and rust removal process for steel wire rod, and the production process is as follows:
  • the wire rod is pickled after heat treatment
  • the second step is to clean the pickled wire with high pressure
  • the third step is to rinse in the washing tank
  • the fourth step is to expose to the air after cleaning to increase oxidation
  • the fifth step is to enter the hydrochloric acid tank again for secondary pickling
  • the next step is carried out after the second pickling.
  • the pickling time is 25 minutes.
  • the pH value of the washing tank is set to 1.5, and the rinsing time does not exceed 1 minute.
  • the exposure time is 8 hours.
  • the second pickling adopts a rapid pickling method, and the time is 3 minutes.
  • the pickling can be repeated once, and no more than two repetitions should be made under the premise of meeting the quality requirements.

Abstract

A drawing and rust removal process for a steel wire, the production process thereof comprising the following steps: step 1, performing heat treatment on a wire and then pickling the wire; step 2, cleaning the pickled wire using high pressure; step 3, rinsing the wire in a rinsing tank; step 4, upon completion of cleaning, exposing the wire to the air to increase oxidation; step 5, making the wire enter a hydrochloric acid tank again and performing secondary pickling; and step 6, after the secondary pickling, performing the next process. The process facilitates removal of carbon deposition from surfaces of various kinds of medium and low carbon steel and chromium-molybdenum alloy steel after heat treatment has been performed thereon. Wire surface treatment is performed during the production process, so as to effectively improve the surface quality of formed wires without having to add other processes, thereby reducing costs.

Description

一种钢类线材的拉拔除锈工艺Drawing process for removing rust of steel wire rod 技术领域Technical field
本发明涉及一种钢类线材的拉拔除锈工艺。The invention relates to a drawing process for removing rust from steel wire rods.
技术背景technical background
钢类线材的生产过程中需要进行线材的拉拔，俗称伸线，为了伸线工艺的顺畅进行，需要在线材外层涂抹伸线粉(主要成分为硬脂酸钙)，而伸线完成时就会在线材表面残留一部分伸线粉，再进入热处理会因为高温烧结形成表面积炭，后期酸洗很难彻底清理干净，不仅影响线材品质，还会增加加工成本，影响企业效益。In the production process of steel wire rod, the wire rod needs to be drawn, commonly known as wire drawing. In order to smooth the wire drawing process, it is necessary to apply wire drawing powder (the main component is calcium stearate) on the outer layer of the wire, and when the wire drawing is completed A part of the wire drawing powder will remain on the surface of the wire, and the heat treatment will form surface carbon due to high temperature sintering. It is difficult to clean it thoroughly after pickling, which not only affects the quality of the wire, but also increases the processing cost and affects the efficiency of the company.
发明内容Summary of the invention
本发明旨在提供一种钢类线材的拉拔除锈工艺，通过在酸洗过程中进行工艺改进，同时增加除锈工艺，实现线材拉拔后可以直接成型，不需要多余工艺进行操作，降低生产成本，提高生产质量。The present invention aims to provide a steel wire drawing process for removing rust. By improving the process during the pickling process and adding the rust removing process, the wire rod can be formed directly after drawing, and no extra process is required for operation. Production cost, improve production quality.
为解决上述问题，本发明提供的一种钢类线材的拉拔除锈工艺采用了如下技术方案：In order to solve the above-mentioned problems, a drawing and rust removal process for steel wire rods provided by the present invention adopts the following technical solutions:
一种钢类线材的拉拔除锈工艺，生产工艺如下：A drawing and rust removal process for steel wire rod, the production process is as follows:
第一步，线材热处理后进行酸洗；In the first step, the wire rod is pickled after heat treatment;
第二步，使用高压清洗酸洗后的线材；The second step is to clean the pickled wire with high pressure;
第三步，在水洗槽中漂洗；The third step is to rinse in the washing tank;
第四步，清洗完毕暴露在空气中，增加氧化；The fourth step is to expose to the air after cleaning to increase oxidation;
第五步，再次进入盐酸槽进行二次酸洗；The fifth step is to enter the hydrochloric acid tank again for secondary pickling;
第六步，二次酸洗后进行下一步工艺。In the sixth step, the next step is carried out after the second pickling.
进一步的，在第一步中，酸洗时间为15-30分钟。Further, in the first step, the pickling time is 15-30 minutes.
进一步的，在第三步中，水洗槽设置的PH值为1-2，漂洗时间不超过1分钟。Further, in the third step, the pH value of the washing tank is set to 1-2, and the rinsing time does not exceed 1 minute.
进一步的，在第四步中，暴露时间为4-8小时。Further, in the fourth step, the exposure time is 4-8 hours.
进一步的，在第五步中，二次酸洗采用快速酸洗的方式，时间为 1-3分钟。Furthermore, in the fifth step, the second pickling adopts rapid pickling, and the time is 1-3 minutes.
进一步的，在第五步的二次酸洗下，产品未能达到表面品质时可重复酸洗一次，达到品质要求的前提下不超过两次重复。Further, under the second pickling in the fifth step, if the product fails to reach the surface quality, the pickling can be repeated once, and no more than two repetitions should be made under the premise of meeting the quality requirements.
本发明的有益效果在于：本发明提供的一种钢类线材的拉拔除锈工艺，可以满足应对各种中低碳钢及铬钼合金钢材料经热处理后表面积碳的清除，在生产过程中对线材表面进行处理可以有效提高线材成型后的表面品质，同时不再需要增加其他工艺，节约成本。The beneficial effect of the present invention is that the drawing and rust removal process for steel wire rods provided by the present invention can meet the requirements for the removal of surface carbon after heat treatment of various medium and low-carbon steel and chromium-molybdenum alloy steel materials. Treatment of the wire surface can effectively improve the surface quality of the wire after forming, and at the same time, it is no longer necessary to add other processes and save costs.
具体实施方式Detailed ways
为了更清楚的了解本发明提供的技术方案，下面结合具体的实施例对本发明做进一步的说明。In order to have a clearer understanding of the technical solutions provided by the present invention, the present invention will be further described below in conjunction with specific embodiments.
本发明提供的一种钢类线材的拉拔除锈工艺，生产工艺如下：The invention provides a drawing and rust removal process for steel wire rod, and the production process is as follows:
第一步，线材热处理后进行酸洗；In the first step, the wire rod is pickled after heat treatment;
第二步，使用高压清洗酸洗后的线材；The second step is to clean the pickled wire with high pressure;
第三步，在水洗槽中漂洗；The third step is to rinse in the washing tank;
第四步，清洗完毕暴露在空气中，增加氧化；The fourth step is to expose to the air after cleaning to increase oxidation;
第五步，再次进入盐酸槽进行二次酸洗；The fifth step is to enter the hydrochloric acid tank again for secondary pickling;
第六步，二次酸洗后进行下一步工艺。In the sixth step, the next step is carried out after the second pickling.
进一步的，在第一步中，酸洗时间为25分钟。Further, in the first step, the pickling time is 25 minutes.
进一步的，在第三步中，水洗槽设置的PH值为1.5，漂洗时间不超过1分钟。Further, in the third step, the pH value of the washing tank is set to 1.5, and the rinsing time does not exceed 1 minute.
进一步的，在第四步中，暴露时间为8小时。Further, in the fourth step, the exposure time is 8 hours.
进一步的，在第五步中，二次酸洗采用快速酸洗的方式，时间为3分钟。Further, in the fifth step, the second pickling adopts a rapid pickling method, and the time is 3 minutes.
进一步的，在第五步的二次酸洗下，产品未能达到表面品质时可重复酸洗一次，达到品质要求的前提下不超过两次重复。Further, under the second pickling in the fifth step, if the product fails to reach the surface quality, the pickling can be repeated once, and no more than two repetitions should be made under the premise of meeting the quality requirements.
本发明不局限于上述具体的实施方式，本领域的普通技术人员从上述构思出发，不经过创造性的劳动，所作出的种种变换，均落在本 发明的保护范围之内。The present invention is not limited to the above-mentioned specific implementations. Starting from the above-mentioned concept and without creative work, various changes made by those skilled in the art fall within the protection scope of the present invention.

Claims (6)

  1. 一种钢类线材的拉拔除锈工艺，其特征在于，生产工艺如下：A drawing process for removing rust from steel wires, which is characterized in that the production process is as follows:
    第一步，线材热处理后进行酸洗；In the first step, the wire rod is pickled after heat treatment;
    第二步，使用高压清洗酸洗后的线材；The second step is to clean the pickled wire with high pressure;
    第三步，在水洗槽中漂洗；The third step is to rinse in the washing tank;
    第四步，清洗完毕暴露在空气中，增加氧化；The fourth step is to expose to the air after cleaning to increase oxidation;
    第五步，再次进入盐酸槽进行二次酸洗；The fifth step is to enter the hydrochloric acid tank again for secondary pickling;
    第六步，二次酸洗后进行下一步工艺。In the sixth step, the next step is carried out after the second pickling.
  2. 根据权利要求1所述的一种钢类线材的拉拔除锈工艺，其特征在于，在第一步中，酸洗时间为15-30分钟。The process for removing rust by drawing steel wires according to claim 1, wherein in the first step, the pickling time is 15-30 minutes.
  3. 根据权利要求1所述的一种钢类线材的拉拔除锈工艺，其特征在于，在第三步中，水洗槽设置的PH值为1-2，漂洗时间不超过1分钟。A steel wire drawing process for removing rust according to claim 1, characterized in that, in the third step, the pH value of the washing tank is set to 1-2, and the rinsing time does not exceed 1 minute.
  4. 根据权利要求1所述的一种钢类线材的拉拔除锈工艺，其特征在于，在第四步中，暴露时间为4-8小时。The drawing process for removing rust from steel wires according to claim 1, wherein in the fourth step, the exposure time is 4-8 hours.
  5. 根据权利要求1所述的一种钢类线材的拉拔除锈工艺，其特征在于，在第五步中，二次酸洗采用快速酸洗的方式，时间为1-3分钟。A steel wire drawing process for removing rust according to claim 1, characterized in that, in the fifth step, the secondary pickling adopts a rapid pickling method, and the time is 1-3 minutes.
  6. 根据权利要求1所述的一种钢类线材的拉拔除锈工艺，其特征在于，在第五步的二次酸洗下，产品未能达到表面品质时可重复酸洗一次，达到品质要求的前提下不超过两次重复。A steel wire drawing process for removing rust according to claim 1, characterized in that, in the fifth step of the second pickling, if the product fails to reach the surface quality, the pickling can be repeated once to meet the quality requirements Under the premise of no more than two repetitions.
PCT/CN2020/108795 2020-04-30 2020-08-13 Drawing and rust removal process for steel wire WO2021217950A1 (en)

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Publication number Priority date Publication date Assignee Title
CN111472009A (en) * 2020-04-30 2020-07-31 苏州强新合金材料科技有限公司 Drawing rust removal process for steel wire

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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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