CN104441288A - 一种太阳能硅片加工切割设备和方法 - Google Patents

一种太阳能硅片加工切割设备和方法 Download PDF

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CN104441288A
CN104441288A CN201410603068.9A CN201410603068A CN104441288A CN 104441288 A CN104441288 A CN 104441288A CN 201410603068 A CN201410603068 A CN 201410603068A CN 104441288 A CN104441288 A CN 104441288A
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slurry
silicon
slicing
slurry tank
slicer
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CN104441288B (zh
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陈乔玉
陆继波
王禄堡
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Jiangsu Meike Solar Technology Co Ltd
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Zhenjiang Huantai Silicon Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
    • B28D5/04Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools
    • B28D5/045Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools by cutting with wires or closed-loop blades

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Silicon Compounds (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

本发明属于太阳能光伏切片加工领域,具体涉及一种太阳能硅片加工切割设备和方法,属于太阳能切片机领域。本设备用于太阳能电池片生产过程中将硅块切割成硅片。此切片机使用钢线及砂浆进行切割;硅片切片机导轮上步有线网,线网上方设置有喷砂嘴工件、平台夹紧工件等;夹紧工装上装有硅块,通过浆料泵电机将浆料罐中的砂浆导流至导轮上步的线网上面,从而与硅块接触将硅块切割成硅片。本发明将原有的浆料罐中加装固定体积的半环形浮筒,降低整个浆料缸的容积,提升浆料罐砂浆的液位,确保设备的正常运行,同时也达到降低砂浆用量的节约成本的目的。

Description

一种太阳能硅片加工切割设备和方法
技术领域
本发明属于太阳能光伏切片加工领域,具体涉及一种新型的太阳能硅片加工切割设备和方法,属于太阳能切片机领域。
背景技术
随着光伏行业的迅猛发展,太阳能硅片切割设备数量每年都在大幅增加。其中,切割设备的切割砂浆的需求量已经超过1500 吨/天。而国际行情的竞争压力,迫使越来越多的硅片切割企业降低生产成本、提高硅片切割优质率来提高竞争力和生存能力。目前,各家公司硅片切割的工艺和操作流程大致相同,如何才能在相同的工艺和流程下取得更好效益,就需要关注细节,在细小的操作方面做改善,将生产过程中的损失降到最低,将每一刀的切割成本降至最低。
现有的硅片切片机导轮上步有线网,线网上方设置有喷砂嘴工件、平台夹紧工件等;夹紧工装上装有硅块,通过浆料泵电机将浆料罐中的砂浆导流至导轮上步的线网上面,从而与硅块接触将硅块切割成硅片。在太阳能硅片线切割过程中,整个机理是利用碳化硅颗粒的坚硬特性和锋利菱角将硅块逐步截断,要求切割砂浆中碳化硅颗粒能够在切割砂浆体系中均匀稳定的分散,并保持持续稳定的砂浆密度和砂浆供给量,使砂浆均匀地包覆在高速运动中的钢线表面,均匀平稳的使碳化硅微粒作用于硅块表面,同时及时带走切割热和破碎颗粒,保证硅片的表面质量。在现有的切片机硅片线切割中,近35--45%的硅料被切成微粉和少量的钢线磨损的铁微粉一起随切割砂浆进入循环砂浆体系中,并且大量微粉粘附在碳化硅表面随砂浆一起参与切割,其结果使砂浆密度和粘度随之增加,影响了砂浆切割能力,并随切割时间增长而下降,用户只能采用每切一刀停机后更换新砂浆来替换废砂浆和补偿砂浆密度的变化,造成大量可用的砂浆一起变成废砂浆,增加了更换砂浆成本和设备的维护成本。为了适应未来市场需求及价格的竞争,整个行业都在为如何控制辅料环境和降低切割成本而不停地寻找新的途径。
发明内容
本发明是针对上述现有技术存在的难题提出了一种新的太阳能硅片加工切割设备及方法,在PV 800切片机原有的浆料罐中加装固定体积的半环形浮筒,降低整个浆料缸的容积,提升浆料罐砂浆的液位,确保设备的正常运行,同时也达到降低砂浆用量的节约成本的目的。
具体技术方案内容如下:
一种太阳能硅片加工切割设备,包括切片机,其特征在于所述切片机还包括密封的半圆环形浮筒;所述浮筒内径≥400cm,浮筒外径≤1000cm;所述浮筒通过螺纹方式连接固定于切片机浆料室一侧。
一种太阳能硅片加工切割方法,采用上述设备进行加工,加工步骤如下:
步骤一,将浮筒固定于切片机的浆料罐内顶部一侧,使得浆料罐内的砂浆搅拌叶能够正常运作;
步骤二,向浆料罐内添加500KG份量的新砂浆;
步骤三,启动切片机,浆料罐中的砂浆充分的循环使用,并成功将太阳能硅块切片。
在上述方法的步骤二中,需要先行确认浆料罐中是否有残留的废浆料,并进行清理。
有益效果:
1.通过使用本加工方法,能够有效的降低切片机加工时对砂浆的需求量,提高砂浆使用效率,并不影响硅片的加工质量标准,从而降低太阳能硅片加工的成本,节省资源。
2.本方法使用简单,便于操作,通过简单的浮筒使用即可实现,不需要对切片机装置进行改装和拆卸,使用成本低廉,节约效果明显。
附图说明
图1为切片机浆料罐的侧面剖面图。
图2为切片机浆料罐的俯视图结构示意图。
具体实施方式
为了使本发明的技术方案更加清晰明确,下面结合附图对本发明做进一步说明。
使用到的设备有NTC PV800切片机一台、塑料或金属材料若干。
如图1和图2所示,
a.利用塑料或金属材料制作固定体积的密封半圆环形浮筒111,浮筒111的外径为1000cm,浮筒111的内径为400cm。
b.将浮筒111固定于切片机PV800的浆料罐115内的顶部左侧,使得浆料罐内的砂浆搅拌叶114和116能够正常运作;
c.监察浆料罐内是否有残留的废弃浆料,并清理,然后向浆料罐116内添加500KG份量的新砂浆;
d.安装硅块并启动NTC PV800切片机,浆料罐中的砂浆自动充分的循环使用,并成功将太阳能硅块切片。
我们对上述设备和使用方法的效果进行了测试,测试完成后,得出的测试数据如下:
平均出片合格率为94.5% ---95%;
砂浆使用量从每罐600KG减低到每罐500KG;
切割效率、设备换导轮和维护周期与原技术方案同步。
以上所述的具体实施例,对本发明的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (2)

1.一种太阳能硅片加工切割设备,包括切片机,其特征在于所述切片机还包括密封的半圆环形浮筒;所述浮筒内径≥400cm,浮筒外径≤1000cm;所述浮筒通过螺纹方式连接固定于切片机浆料室一侧。
2.一种太阳能硅片加工切割方法,采用权利要求1所述的太阳能硅片加工切割设备进行加工,方法步骤如下:
步骤一,将浮筒固定于切片机的浆料罐内顶部一侧,使得浆料罐内的砂浆搅拌叶能够正常运作;
步骤二,向浆料罐内添加500KG份量的新砂浆;
步骤三,启动切片机,浆料罐中的砂浆充分的循环使用,并成功将太阳能硅块切片。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014807A (zh) * 2015-07-31 2015-11-04 江苏奥能光电科技有限公司 用于硅片切割的砂浆缸

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CN102990792A (zh) * 2012-11-28 2013-03-27 天津市环欧半导体材料技术有限公司 一种八英寸硅单晶硅片多线切割机及其切割方法

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US5477844A (en) * 1993-11-10 1995-12-26 Diamant Boart, Inc. Slurry recovery system for a wet cutting saw
CN1145041A (zh) * 1994-12-12 1997-03-12 菲利浦电子有限公司 清洗物品用的装置
CN201329262Y (zh) * 2008-12-25 2009-10-21 锦州日鑫硅材料有限公司 浆料搅拌罐
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105014807A (zh) * 2015-07-31 2015-11-04 江苏奥能光电科技有限公司 用于硅片切割的砂浆缸

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