CN108913849A - 一种回火胎圈钢丝的加工方法 - Google Patents

一种回火胎圈钢丝的加工方法 Download PDF

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CN108913849A
CN108913849A CN201810695297.6A CN201810695297A CN108913849A CN 108913849 A CN108913849 A CN 108913849A CN 201810695297 A CN201810695297 A CN 201810695297A CN 108913849 A CN108913849 A CN 108913849A
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迟沅财
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Liuzhou Heng Yang Machinery Co Ltd
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Abstract

本发明旨在提供一种回火胎圈钢丝加工方法,包括以下步骤:(1)表面处理;(2)第一次拉拔;(3)热处理;(4)第二次拉拔;(5)镀铜。该方法克服现有技术缺陷,具有钢丝强度高、延伸率高、工艺可操作性强的特点。

Description

一种回火胎圈钢丝的加工方法
技术领域
本发明涉及钢丝加工领域,具体涉及一种回火胎圈钢丝的加工方法。
背景技术
胎圈钢丝用于轮胎的胎圈部分,是轮胎的主要骨架材料之一,用于制造乘用汽车及其它运载车的轮胎胎圈钢丝束,其作用是使轮胎紧密地固定在轮辋上,并承受着轮胎与轮辋之间的各种相互作用力。胎圈钢丝是一种经拉拔加工后在碳素圆钢丝表面镀有青铜、紫铜或黄铜等镀层的高性能金属线材。近年来,随着我国巨大的汽车保有量和持续增长的车市行情,胎圈钢丝需求量不断增大,由于受限于生产设备及工艺等问题,部分厂家生产的胎圈钢丝常存在各种性能指标不合格的情况。
发明内容
本发明旨在提供一种回火胎圈钢丝的加工方法,该方法克服现有技术缺陷,具有设备要求低、工艺可操作性强的特点。
本发明的技术方案如下:
一种回火胎圈钢丝加工方法,包括以下步骤:
(1)表面处理:将钢丝用汽油浸泡,再用压缩空气吹干;利用碱液对钢丝进行电解碱洗,之后对钢丝进行化学酸洗,再之后对钢丝进行超声波水洗;
(2)第一次拉拔:利用卷筒连接钢丝,并通过拉丝模进行拉拔,拉拔的总压缩比为20%-30%,平均压缩比为10%-15%,拉拔速度4m/s-6m/s,循环冷却水40-50℃;
(3)热处理:使得钢丝通过明火炉,明火炉温度设定1000-1100℃,钢丝从明火炉出来进入铅槽冷却,铅淬火温度设定550-600℃,钢丝在铅槽液中停留时间55-65秒,然后进行酸洗和涂硼处理;
(4)第二次拉拔:采用模具拉拔,拉拔速度10-15m/s,循环冷却水40-60℃,平均压缩比约为15%-20%;
(5)镀铜:镀液铜浓度0.2-0.7%,镀液锡浓度0.02-0.04%,温度20-45℃,镀铜后进行回火处理,回火温度410-450℃,钢丝在铅槽液回火时间约1.5-2秒,然后进行酸洗和清洗后烘干即得。
优选地,所述的碱液为包含如下成分浓度的水溶液:氢氧化钠15-25g/L、碳酸钠10-15g/L、碳酸氢钠2-6g/L;
优选地,所述的超声波水洗的功率为1800-2300W、频率为23-30kHz。
优选地,电解碱洗的条件为温度为70-85℃、电流密度50-100A/dm2、处理时间3-5s。
优选地,化学酸洗的条件为温度10-20℃、时间15-30s。
优选地,所述的步骤(2)的酸洗和涂硼处理,其盐酸浓度12-25%,盐酸温度40-70℃,硼砂浓度20-35%,硼砂温度70-90℃,酸洗涂硼后烘干,烘箱温度110-150℃,烘干时缠绕速度13-16m/Min。
优选地,所述的步骤(5)的酸洗处理,其盐酸浓度15-20%,盐酸温度50-80℃,酸洗后烘干,烘箱温度130-150℃,烘干时缠绕速度12-14m/Min。
本发明处理方法简单、高效,得处理后的钢丝强度高、延伸率高,且钢丝表面凹凸点分布均匀;该表面处理方法简单、高效,且处理后钢丝强度稳定。
具体实施方式
实施例1
一种回火胎圈钢丝加工方法,包括以下步骤:
(1)表面处理:将钢丝用汽油浸泡,再用压缩空气吹干;利用碱液对钢丝进行电解碱洗,之后对钢丝进行化学酸洗,再之后对钢丝进行超声波水洗;
(2)第一次拉拔:利用卷筒连接钢丝,并通过拉丝模进行拉拔,拉拔的总压缩比为20%%,平均压缩比为10%%,拉拔速度4m/s,循环冷却水40℃;
(3)热处理:使得钢丝通过明火炉,明火炉温度设定1000℃,钢丝从明火炉出来进入铅槽冷却,铅淬火温度设定550℃,钢丝在铅槽液中停留时间55秒,然后进行酸洗和涂硼处理;
(4)第二次拉拔:采用模具拉拔,拉拔速度10m/s,循环冷却水40℃,平均压缩比约为15%%;
(5)镀铜:镀液铜浓度0.2%,镀液锡浓度0.02%,温度20℃,镀铜后进行回火处理,回火温度410℃,钢丝在铅槽液回火时间约1.5秒,然后进行酸洗和清洗后烘干即得;
所述的碱液为包含如下成分浓度的水溶液:氢氧化钠15g/L、碳酸钠10g/L、碳酸氢钠2g/L;
所述的超声波水洗的功率为1800W、频率为23kHz;
电解碱洗的条件为温度为70℃、电流密度50A/dm2、处理时间3s;
化学酸洗的条件为温度10℃、时间15s;
所述的步骤(2)的酸洗和涂硼处理,其盐酸浓度12%,盐酸温度40℃,硼砂浓度20%,硼砂温度70℃,酸洗涂硼后烘干,烘箱温度110℃,烘干时缠绕速度13m/Min;
所述的步骤(5)的酸洗处理,其盐酸浓度15%,盐酸温度50℃,酸洗后烘干,烘箱温度130℃,烘干时缠绕速度12m/Min。
实施例2
一种回火胎圈钢丝加工方法,包括以下步骤:
(1)表面处理:将钢丝用汽油浸泡,再用压缩空气吹干;利用碱液对钢丝进行电解碱洗,之后对钢丝进行化学酸洗,再之后对钢丝进行超声波水洗;
(2)第一次拉拔:利用卷筒连接钢丝,并通过拉丝模进行拉拔,拉拔的总压缩比为30%,平均压缩比为15%,拉拔速度6m/s,循环冷却水50℃;
(3)热处理:使得钢丝通过明火炉,明火炉温度设定1100℃,钢丝从明火炉出来进入铅槽冷却,铅淬火温度设定600℃,钢丝在铅槽液中停留时间65秒,然后进行酸洗和涂硼处理;
(4)第二次拉拔:采用模具拉拔,拉拔速度15m/s,循环冷却水60℃,平均压缩比约为20%;
(5)镀铜:镀液铜浓度0.7%,镀液锡浓度0.04%,温度45℃,镀铜后进行回火处理,回火温度450℃,钢丝在铅槽液回火时间约2秒,然后进行酸洗和清洗后烘干即得;
所述的碱液为包含如下成分浓度的水溶液:氢氧化钠25g/L、碳酸钠15g/L、碳酸氢钠6g/L;
所述的超声波水洗的功率为2300W、频率为30kHz;
电解碱洗的条件为温度为85℃、电流密度100A/dm2、处理时间5s;
化学酸洗的条件为温度20℃、时间30s;
所述的步骤(2)的酸洗和涂硼处理,其盐酸浓度25%,盐酸温度70℃,硼砂浓度35%,硼砂温度90℃,酸洗涂硼后烘干,烘箱温度150℃,烘干时缠绕速度16m/Min;
所述的步骤(5)的酸洗处理,其盐酸浓度20%,盐酸温度80℃,酸洗后烘干,烘箱温度150℃,烘干时缠绕速14m/Min。
实施例3
一种回火胎圈钢丝加工方法,包括以下步骤:
(1)表面处理:将钢丝用汽油浸泡,再用压缩空气吹干;利用碱液对钢丝进行电解碱洗,之后对钢丝进行化学酸洗,再之后对钢丝进行超声波水洗;
(2)第一次拉拔:利用卷筒连接钢丝,并通过拉丝模进行拉拔,拉拔的总压缩比为25%,平均压缩比为12%,拉拔速度5m/s,循环冷却水45℃;
(3)热处理:使得钢丝通过明火炉,明火炉温度设定1050℃,钢丝从明火炉出来进入铅槽冷却,铅淬火温度设定580℃,钢丝在铅槽液中停留时间60秒,然后进行酸洗和涂硼处理;
(4)第二次拉拔:采用模具拉拔,拉拔速度12m/s,循环冷却水50℃,平均压缩比约为18%;
(5)镀铜:镀液铜浓度0.5%,镀液锡浓度0.03%,温度40℃,镀铜后进行回火处理,回火温度430℃,钢丝在铅槽液回火时间约1.8秒,然后进行酸洗和清洗后烘干即得;
所述的碱液为包含如下成分浓度的水溶液:氢氧化钠20g/L、碳酸钠13g/L、碳酸氢钠4g/L;
所述的超声波水洗的功率为2000W、频率为28kHz;
电解碱洗的条件为温度为80℃、电流密度80A/dm2、处理时间4s;
化学酸洗的条件为温度15℃、时间20s;
所述的步骤(2)的酸洗和涂硼处理,其盐酸浓度18%,盐酸温度60℃,硼砂浓度25%,硼砂温度80℃,酸洗涂硼后烘干,烘箱温度130℃,烘干时缠绕速度14m/Min;
所述的步骤(5)的酸洗处理,其盐酸浓度18%,盐酸温度70℃,酸洗后烘干,烘箱温度140℃,烘干时缠绕速度13m/Min。

Claims (7)

1.一种回火胎圈钢丝加工方法,其特征在于包括以下步骤:
(1)表面处理:将钢丝用汽油浸泡,再用压缩空气吹干;利用碱液对钢丝进行电解碱洗,之后对钢丝进行化学酸洗,再之后对钢丝进行超声波水洗;
(2)第一次拉拔:利用卷筒连接钢丝,并通过拉丝模进行拉拔,拉拔的总压缩比为20%-30%,平均压缩比为10%-15%,拉拔速度4m/s-6m/s,循环冷却水40-50℃;
(3)热处理:使得钢丝通过明火炉,明火炉温度设定1000-1100℃,钢丝从明火炉出来进入铅槽冷却,铅淬火温度设定550-600℃,钢丝在铅槽液中停留时间55-65秒,然后进行酸洗和涂硼处理;
(4)第二次拉拔:采用模具拉拔,拉拔速度10-15m/s,循环冷却水40-60℃,平均压缩比约为15%-20%;
(5)镀铜:镀液铜浓度0.2-0.7%,镀液锡浓度0.02-0.04%,温度20-45℃,镀铜后进行回火处理,回火温度410-450℃,钢丝在铅槽液回火时间约1.5-2秒,然后进行酸洗和清洗后烘干即得。
2.如权利要求1所述的回火胎圈钢丝加工方法,其特征在于:
所述的碱液为包含如下成分浓度的水溶液:氢氧化钠15-25g/L、碳酸钠10-15g/L、碳酸氢钠2-6g/L。
3.如权利要求1所述的回火胎圈钢丝加工方法,其特征在于:
所述的超声波水洗的功率为1800-2300W、频率为23-30kHz。
4.根据权利要求1所述的胎圈钢丝的镀前处理方法,其特征在于:电解碱洗的条件为温度为70-85℃、电流密度50-100A/dm2、处理时间3-5s。
5.根据权利要求1所述的胎圈钢丝的镀前处理方法,其特征在于:化学酸洗的条件为温度10-20℃、时间15-30s。
6.如权利要求1所述的回火胎圈钢丝加工方法,其特征在于:
所述的步骤(2)的酸洗和涂硼处理,其盐酸浓度12-25%,盐酸温度40-70℃,硼砂浓度20-35%,硼砂温度70-90℃,酸洗涂硼后烘干,烘箱温度110-150℃,烘干时缠绕速度13-16m/Min。
7.如权利要求1所述的回火胎圈钢丝加工方法,其特征在于:
所述的步骤(5)的酸洗处理,其盐酸浓度15-20%,盐酸温度50-80℃,酸洗后烘干,烘箱温度130-150℃,烘干时缠绕速度12-14m/Min。
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CN109576468A (zh) * 2018-12-25 2019-04-05 重庆强劲金属制品有限责任公司 一种钢丝的生产淬火工艺
WO2021217952A1 (zh) * 2020-04-30 2021-11-04 苏州强新合金材料科技有限公司 一种钢类线材酸洗工艺
CN114102055A (zh) * 2021-10-22 2022-03-01 江苏胜达科技有限公司 高承载性矿山轮胎用钢丝内圈加工机械及其加工工艺

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CN109576468A (zh) * 2018-12-25 2019-04-05 重庆强劲金属制品有限责任公司 一种钢丝的生产淬火工艺
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CN114102055A (zh) * 2021-10-22 2022-03-01 江苏胜达科技有限公司 高承载性矿山轮胎用钢丝内圈加工机械及其加工工艺

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