WO2021217951A1 - 一种钢类线材石灰伸线工艺 - Google Patents

一种钢类线材石灰伸线工艺 Download PDF

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Publication number
WO2021217951A1
WO2021217951A1 PCT/CN2020/108796 CN2020108796W WO2021217951A1 WO 2021217951 A1 WO2021217951 A1 WO 2021217951A1 CN 2020108796 W CN2020108796 W CN 2020108796W WO 2021217951 A1 WO2021217951 A1 WO 2021217951A1
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WIPO (PCT)
Prior art keywords
lime
drawing process
pickling
washing
wire
Prior art date
Application number
PCT/CN2020/108796
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English (en)
French (fr)
Inventor
张丁南
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苏州强新合金材料科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州强新合金材料科技有限公司 filed Critical 苏州强新合金材料科技有限公司
Publication of WO2021217951A1 publication Critical patent/WO2021217951A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material
    • B21C9/02—Selection of compositions therefor
    • 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
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously

Definitions

  • the invention relates to a lime wire drawing process for steel wire rods.
  • Wire drawing operations are required during the re-production of steel wires to process the material to the required size.
  • some special small-sized wires are stripped of the wire before the wire drawing operation. , That is, remove the oxide scale layer on the surface of the wire, so that wire breakage is likely to occur when the wire is drawn.
  • the reason is that the wire has a large surface reduction rate when entering the mold and there is no other lubricating coating on the surface. It is solely dependent on wire drawing powder for lubrication It is impossible to reduce the resistance when entering the mold, so that the efficiency of wire production is reduced and the loss rate is increased.
  • the invention aims to provide a lime wire drawing process for steel wire rods, which is pickled to remove the oxide layer before wire drawing, and then covered with lime for lubrication, so as to improve the flowery effect during wire production and realize the stability during the first wire drawing Sex and efficiency.
  • a lime drawing process for steel wire rods is as follows:
  • the first step is the wire coil
  • the second step is pickling
  • the third step is lime coating
  • the fourth step is heat treatment
  • the sixth step phosphorous saponification
  • the seventh step is to draw the finished product.
  • the pickling time is 15-30 minutes. After the surface oxidized scale is cleaned, it is placed in the washing tank for one minute rinsing, that is, the first washing, and then it enters the washing tank after washing. Wash twice.
  • the pH value of the washing tank is set to 1-2.
  • the pH value of the washing tank is set to 5-6.5.
  • the wire rod is put into the mixed lime solution for coating, and then into the drying equipment for drying.
  • the coating time of the wire rod in the mixed lime liquid is 4-6 minutes.
  • the mixed lime liquid adopts a mixed solution of calcium hydroxide and soap powder.
  • the beneficial effects of the present invention are: the lime wire drawing process for steel wire rods provided by the present invention first removes the oxide layer on the surface of the wire rod by pickling to increase the area currently in the mold, and then use the mixed lime liquid for coating. Effectively improve the lubrication effect of the wire entering the drawing die, and solve the problem of wire breakage during the first drawing. At the same time, mixing the lime solution can effectively extend the service life of the die, reduce the loss, and improve the production efficiency of the wire.
  • the present invention provides a lime drawing process for steel wire rod, and the production process is as follows:
  • the first step is the wire coil
  • the second step is pickling
  • the third step is lime coating
  • the fourth step is heat treatment
  • the sixth step phosphorous saponification
  • the seventh step is to draw the finished product.
  • the pickling time is 15-30 minutes. After the surface oxidized scale is cleaned, it is placed in the washing tank for one minute rinsing, that is, the first washing, and then it enters the washing tank after washing. Wash twice.
  • the pH value of the washing tank is set to 1.5.
  • the pH value of the washing tank is set to 5.5.
  • the wire rod is put into the mixed lime solution for coating, and then into the drying equipment for drying.
  • the coating time of the wire rod in the mixed lime liquid is 5 minutes.
  • the mixed lime liquid adopts a mixed solution of calcium hydroxide and soap powder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)

Abstract

一种钢类线材石灰伸线工艺，生产工艺如下：第一步，线材盘元；第二步，酸洗；第三步，石灰披覆；第四步，热处理；第五步，酸洗；第六步，磷皂化；第七步，成品伸线。该钢类线材石灰伸线工艺，先通过酸洗去除线材表层的氧化层，提高线材入模时的面积，再利用混合石灰液进行披覆，可以有效提高线材进入拉拔模具中的润滑效果，解决线材在第一次拉拔时出现断线的问题，同时混合石灰溶液可以有效延长模具的使用寿命，降低损耗，提高线材的生产效率。

Description

一种钢类线材石灰伸线工艺 技术领域
本发明涉及一种钢类线材石灰伸线工艺。
技术背景
钢类线材再生产过程中需要进行伸线拉拔操作，从而将材料加工至需要的尺寸规格，但是一些特殊小规格的线材(直径尺寸在2.5mm以下)在进行伸线操作前对线材进行剥壳，即去除线材表面的氧化锈皮层，如此在进行伸线时就容易发生断线的状况，原因是线材在入模时因减面率大，表面没有其他润滑涂层，单纯依靠伸线粉润滑无法降低入模时的阻力，如此就造成了线材生产的效率降低，损耗率增加。
发明内容
本发明旨在提供一种钢类线材石灰伸线工艺，在伸线前进行酸洗去氧化层，再披覆石灰进行润滑，提高线材生产时的如花效果，实现第一次伸线时的稳定性和效率。
为解决上述问题，本发明提供的一种钢类线材石灰伸线工艺采用了如下技术方案：
一种钢类线材石灰伸线工艺，生产工艺如下：
第一步，线材盘元；
第二步，酸洗；
第三步，石灰披覆；
第四步，热处理；
第五步，酸洗；
第六步，磷皂化；
第七步，成品伸线。
进一步的，在第二步中，酸洗时间为15-30分钟，待表面氧化锈皮清洗完成后放入水洗槽内，进行一分钟漂洗，即第一次水洗，清洗后再进入水洗槽进行二次水洗。
进一步的，第一次水洗时，水洗槽PH值设置为1-2。
进一步的，第二次水洗时，水洗槽PH值设置为5-6.5。
进一步的，在第三步中，酸洗完成后将线材进入混合石灰液中进行披覆，然后进入烘干设备进行烘干。
进一步的，线材在混合石灰液内披覆时间为4-6分钟。
进一步的，混合石灰液采用氢氧化钙和皂粉的混合溶液。
本发明的有益效果在于：本发明提供的一种钢类线材石灰伸线工艺，先通过酸洗去除线材表层的氧化层，提高现在入模时的面积，再利用混合石灰液进行披覆，可以有效提高线材进入拉拔模具中的润滑效果，解决线材在第一次拉拔时出现断线的问题，同时混合石灰溶液可以有效延长模具的使用寿命，降低损耗，提高线材的生产效率。
具体实施方式
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。
本发明提供的一种钢类线材石灰伸线工艺，生产工艺如下：
第一步，线材盘元；
第二步，酸洗；
第三步，石灰披覆；
第四步，热处理；
第五步，酸洗；
第六步，磷皂化；
第七步，成品伸线。
进一步的，在第二步中，酸洗时间为15-30分钟，待表面氧化锈皮清洗完成后放入水洗槽内，进行一分钟漂洗，即第一次水洗，清洗后再进入水洗槽进行二次水洗。
进一步的，第一次水洗时，水洗槽PH值设置为1.5。
进一步的，第二次水洗时，水洗槽PH值设置为5.5。
进一步的，在第三步中，酸洗完成后将线材进入混合石灰液中进行披覆，然后进入烘干设备进行烘干。
进一步的，线材在混合石灰液内披覆时间为5分钟。
进一步的，混合石灰液采用氢氧化钙和皂粉的混合溶液。
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。

Claims (7)

  1. 一种钢类线材石灰伸线工艺，其特征在于，生产工艺如下：
    第一步，线材盘元；
    第二步，酸洗；
    第三步，石灰披覆；
    第四步，热处理；
    第五步，酸洗；
    第六步，磷皂化；
    第七步，成品伸线。
  2. 根据权利要求1所述的一种钢类线材石灰伸线工艺，其特征在于，在第二步中，酸洗时间为15-30分钟，待表面氧化锈皮清洗完成后放入水洗槽内，进行一分钟漂洗，即第一次水洗，清洗后再进入水洗槽进行二次水洗。
  3. 根据权利要求2所述的一种钢类线材石灰伸线工艺，其特征在于，第一次水洗时，水洗槽PH值设置为1-2。
  4. 根据权利要求2所述的一种钢类线材石灰伸线工艺，其特征在于，第二次水洗时，水洗槽PH值设置为5-6.5。
  5. 根据权利要求1所述的一种钢类线材石灰伸线工艺，其特征在于，在第三步中，酸洗完成后将线材进入混合石灰液中进行披覆，然后进入烘干设备进行烘干。
  6. 根据权利要求5所述的一种钢类线材石灰伸线工艺，其特征在于，线材在混合石灰液内披覆时间为4-6分钟。
  7. 根据权利要求5所述的一种钢类线材石灰伸线工艺，其特征在于，混合石灰液采用氢氧化钙和皂粉的混合溶液。
PCT/CN2020/108796 2020-04-30 2020-08-13 一种钢类线材石灰伸线工艺 WO2021217951A1 (zh)

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CN111496005A (zh) * 2020-04-30 2020-08-07 苏州强新合金材料科技有限公司 一种钢类线材石灰伸线工艺

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GB1320133A (en) * 1969-05-15 1973-06-13 Abrasive Dev Treatment of rod or wire
US4553416A (en) * 1983-06-20 1985-11-19 Sumitomo Metal Industries, Ltd. Dry type continuous wire drawing process
CN102861782A (zh) * 2012-10-31 2013-01-09 东莞市科力钢铁线材有限公司 一种螺丝线材的制造工艺
CN104630633A (zh) * 2013-11-07 2015-05-20 丹阳智盛合金有限公司 一种抗渗碳电热合金的制备方法
CN105344724A (zh) * 2015-12-07 2016-02-24 昆山金力诚金属制品有限公司 一种光亮丝拉丝工艺
CN106238495A (zh) * 2016-08-25 2016-12-21 铜陵华洋特种线材有限责任公司 螺旋线材加工工艺
CN109821922A (zh) * 2019-02-19 2019-05-31 海盐孙氏建新标准件制造有限公司 一种螺丝线材的制造工艺
CN111496005A (zh) * 2020-04-30 2020-08-07 苏州强新合金材料科技有限公司 一种钢类线材石灰伸线工艺

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CN105268759A (zh) * 2015-11-04 2016-01-27 无锡翱天钢丝制品有限公司 不良冷镦钢丝改制再利用工艺
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1320133A (en) * 1969-05-15 1973-06-13 Abrasive Dev Treatment of rod or wire
US4553416A (en) * 1983-06-20 1985-11-19 Sumitomo Metal Industries, Ltd. Dry type continuous wire drawing process
CN102861782A (zh) * 2012-10-31 2013-01-09 东莞市科力钢铁线材有限公司 一种螺丝线材的制造工艺
CN104630633A (zh) * 2013-11-07 2015-05-20 丹阳智盛合金有限公司 一种抗渗碳电热合金的制备方法
CN105344724A (zh) * 2015-12-07 2016-02-24 昆山金力诚金属制品有限公司 一种光亮丝拉丝工艺
CN106238495A (zh) * 2016-08-25 2016-12-21 铜陵华洋特种线材有限责任公司 螺旋线材加工工艺
CN109821922A (zh) * 2019-02-19 2019-05-31 海盐孙氏建新标准件制造有限公司 一种螺丝线材的制造工艺
CN111496005A (zh) * 2020-04-30 2020-08-07 苏州强新合金材料科技有限公司 一种钢类线材石灰伸线工艺

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