CN108213105B - 一种光伏焊带汇流带专用铜扁带流水线生产工艺 - Google Patents

一种光伏焊带汇流带专用铜扁带流水线生产工艺 Download PDF

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CN108213105B
CN108213105B CN201611193229.7A CN201611193229A CN108213105B CN 108213105 B CN108213105 B CN 108213105B CN 201611193229 A CN201611193229 A CN 201611193229A CN 108213105 B CN108213105 B CN 108213105B
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陈祖斌
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Abstract

本发明公开一种光伏焊带汇流带专用铜扁带流水线生产工艺,属于光伏焊带汇流带专用铜扁带生产工艺技术领域,其特征在于:依次包括备料、预拉拔、连续压延、拉拔、导电退火、烘干、收卷七大步骤,解决了各工步之间的连贯性问题,保证在同一流水线速度下根据所加工铜扁带规格的不同来实现调节,保证了铜扁带生产的高效性。

Description

一种光伏焊带汇流带专用铜扁带流水线生产工艺
技术领域
本发明涉及光伏焊带汇流带专用铜扁带的生产工艺,具体为一种光伏焊带汇流带专用铜扁带流水线生产工艺。
背景技术
目前光伏焊带制造行业中生产工艺种类繁多,但总体来说光伏焊带汇流带专用铜扁带成型工艺主要有分切和铜丝压制两大类。
铜丝压制加工光伏焊带的生产工艺包括压延、拉拔、退火等主要工步,根据具体的加工条件和加工要求,还包括对铜丝的预先拉拔、多次的压延、退火后的烘干,最后的收盘等步奏,目前中小型企业对于光伏焊带汇流带专用铜扁带的生产加工,首先是将圆柱状铜丝经压延装置压延为铜带后,由收盘装置进行收盘工序,以将铜带收成铜带卷,然后通过车间之间的物流运输到另一个加工车间进行下一步的退火处理加工时,通过退火炉以对铜带进行退火处理,之后在对其进行收盘处理。各个生产的工步之间存在分离的情况,致使物流成本和仓储费大大增加、就产量而言每次对铜扁带毛料的加工都存在开机前期出现废料的情况,生产效率和产品质量不高,而且在重复多次的收盘工序中,会对铜带施加一定拉力,大大降低了铜带的屈服强度。
铜扁带是光伏产业设备的制造中的最基础也就最关键的原料,铜扁带质量的好坏直接关系到光伏设备组件性能的优越,尤其关系到光伏设备能源的利用效率以及设备的使用寿命。所以一种光伏焊带汇流带专用铜扁带流水线生产工艺来实现产品的一次成型,减少分多个工步带来的时间、人力、场地、原料的损耗,进一步提高成品光伏焊带汇流带专用铜扁带的品质。
发明内容
针对现有技术存在的不足,本发明的目的是为了提供一种工作效率高、各工步过渡平稳且实用性强的光伏焊带汇流带专用铜扁带流水线生产工艺,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供了如下技术方案来实现的;
一种光伏焊带汇流带专用铜扁带流水线生产工艺,其特征在于:所述生产工艺依次包括以下步骤:
(1)备料:选用优质的铜丝作为原材料,所述铜丝的电阻率≤0.01710Ωm2/m,屈服强度≤100N/m2,抗拉强度≥200N/m2,延伸率≤45%,镰刀弯弯曲度≤4mm/m,铜丝直径为3mm;
(2)预拉拔:所述预拉拔后铜丝直径的范围为0.9~2.8mm,所述预拉拔的速度≤120m/min;
(3)连续压延:对所述预拉拔工序后的铜丝进行连续压延得到铜扁带,所述连续压延工序中单次压延量为0.05~0.3mm;
(4)拉拔:对所述连续压延工序后的铜扁带进行拉拔,所述拉拔对铜扁带宽度的拉拔量为0.05~0.15mm,所述拉拔对铜扁带厚度的拉拔量为0.01~0.05mm;
(5)导电退火:包括导电加热和入水退火,对所述拉拔后的铜扁带进行导电退火,所述导电加热的电压为12~18V,电流为400~750A,所述导电加热的时间为0.5~1.5秒,所述导电加热后铜扁带的温度为750~800度,所述入水退火时间为0.3~0.6秒,所述铜扁带出水后的温度≤50度;
(6)烘干:对所述导电退火工序后的铜扁带进行烘干,所述烘干温度为70度,烘干时长为1~2秒;
(7)收卷:对所述烘干后的铜扁带进行收卷,所述收卷的收卷力≤5kgf。
作为优选:所述连续压延中的单次压延量依次减小。
作为优选:所述导电退火中导电加热的电压为16.5V,电流为560A。
作为优选:所述收卷的收卷力为3kgf。
本发明采用上述技术方案,其优点在于:
解决了各工步之间的连贯性问题,保证在同一流水线速度下根据所加工铜扁带规格的不同来实现调节,保证了铜扁带生产的高效性;预拉拔可以减少在压延时下压困难,实际压延效果达不到预期,用过预拉拔来预先改变铜丝的直径方便后面工步的处理;压延后的拉拔可以起来一个质检和修正的作用,可以时刻监测流水线生产出的铜扁带尺寸是否合格,修正小的尺寸偏差;烘干是为了防止导电退火后仍有水分在铜扁带表面,防止日后的锈蚀,收卷力大小的把控可以防止铜扁带受力过大尺寸和平面度受到影响。
附图说明
图1为本发明一种光伏焊带汇流带专用铜扁带流水线生产工艺的流程示意图。
具体实施方式
参照图1对本发明一种光伏焊带汇流带专用铜扁带流水线生产工艺做进一步说明。
实施例一:一种光伏焊带汇流带专用铜扁带流水线生产工艺,其特征在于:所述生产工艺依次包括以下步骤:
(1)备料:选用优质的铜丝作为原材料,所述铜丝的电阻率≤0.01710Ωm2/m,屈服强度≤100N/m2,抗拉强度≥200N/m2,延伸率≤45%,镰刀弯弯曲度≤4mm/m,铜丝直径为3mm;
(2)预拉拔:所述预拉拔后铜丝直径的范围为0.9~2.8mm,所述预拉拔的速度≤120m/min;
(3)连续压延:对所述预拉拔工序后的铜丝进行连续压延得到铜扁带,所述连续压延工序中单次压延量为0.05~0.3mm;
(4)拉拔:对所述连续压延工序后的铜扁带进行拉拔,所述拉拔对铜扁带宽度的拉拔量为0.05~0.15mm,所述拉拔对铜扁带厚度的拉拔量为0.01~0.05mm;
(5)导电退火:包括导电加热和入水退火,对所述拉拔后的铜扁带进行导电退火,所述导电加热的电压为12~18V,电流为400~750A,所述导电加热的时间为0.5~1.5秒,所述导电加热后铜扁带的温度为750~800度,所述入水退火时间为0.3~0.6秒,所述铜扁带出水后的温度≤50度;
(6)烘干:对所述导电退火工序后的铜扁带进行烘干,所述烘干温度为70度,烘干时长为1~2秒;
(7)收卷:对所述烘干后的铜扁带进行收卷,所述收卷的收卷力≤5kgf。
实施例二:生产规格为0.3X6mm的光伏焊带汇流带专用铜扁带流水线生产工艺,其特征在于:所述生产工艺依次包括以下步骤:
(1)备料:选用优质的铜丝作为原材料,所述铜丝的电阻率≤0.01710Ωm2/m,屈服强度≤100N/m2,抗拉强度≥200N/m2,延伸率≤45%,镰刀弯弯曲度≤4mm/m,铜丝直径为3mm;
(2)预拉拔:所述预拉拔后铜丝直径为2.12mm,所述预拉拔的速度为70m/min;
(3)连续压延:对所述预拉拔工序后的铜丝进行连续压延得到铜扁带,所述连续压延工序分为三道压延,第一道压延后铜扁带的规格为0.57X5.7mm,第二道压延后铜扁带的规格为0.47X5.85mm,第三道压延后铜扁带的规格为0.33X6.08mm;
(4)拉拔:对所述连续压延工序后的铜扁带进行拉拔,所述拉拔对铜扁带宽度的拉拔量为0.08mm,所述拉拔对铜扁带厚度的拉拔量为0.03mm;
(5)导电退火:包括导电加热和入水退火,对所述拉拔后的铜扁带进行导电退火,所述导电加热的电压为16.5V,电流为560A,所述导电加热的时间为1秒,所述导电加热后铜扁带的温度为780度,所述入水退火时间为0.5秒,所述铜扁带出水后的温度≤45度;
(6)烘干:对所述导电退火工序后的铜扁带进行烘干,所述烘干温度为70度,烘干时长为1秒;
(7)收卷:对所述烘干后的铜扁带进行收卷,所述收卷的收卷力为3kgf。
以上所述仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例,凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理前提下的若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (3)

1.一种光伏焊带汇流带专用铜扁带流水线生产工艺,其特征在于:所述生产工艺依次包括以下步骤:
(1)备料:选用优质的铜丝作为原材料,所述铜丝的电阻率≤0.01710Ωm2/m,屈服强度≤100N/m2,抗拉强度≥200N/m2,延伸率≤45%,镰刀弯弯曲度≤4mm/m,铜丝直径为3mm;
(2)预拉拔:所述预拉拔后铜丝直径的范围为0.9~2.8mm,所述预拉拔的速度≤120m/min;
(3)连续压延:对所述预拉拔工序后的铜丝进行连续压延得到铜扁带,所述连续压延工序中单次压延量为0.05~0.3mm,所述连续压延中的单次压延量依次减小;
(4)拉拔:对所述连续压延工序后的铜扁带进行拉拔,所述拉拔对铜扁带宽度的拉拔量为0.05~0.15mm,所述拉拔对铜扁带厚度的拉拔量为0.01~0.05mm;
(5)导电退火:包括导电加热和入水退火,对所述拉拔后的铜扁带进行导电退火,所述导电加热的电压为12~18V,电流为400~750A,所述导电加热的时间为0.5~1.5秒,所述导电加热后铜扁带的温度为750~800度,所述入水退火时间为0.3~0.6秒,所述铜扁带出水后的温度≤50度;
(6)烘干:对所述导电退火工序后的铜扁带进行烘干,所述烘干温度为70度,烘干时长为1~2秒;
(7)收卷:对所述烘干后的铜扁带进行收卷,所述收卷的收卷力≤5kgf。
2.根据权利要求1所述的一种光伏焊带汇流带专用铜扁带流水线生产工艺,其特征在于:所述导电退火中导电加热的电压为16.5V,电流为560A。
3.根据权利要求1所述的一种光伏焊带汇流带专用铜扁带流水线生产工艺,其特征在于:所述收卷的收卷力为3kgf。
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CN105562455B (zh) * 2016-02-22 2018-06-22 深圳市科谱森精密技术有限公司 一种汇流带裸铜扁线一道压轧、修整、退火工艺及设备
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