CN116175431A - 纯干式金刚石磨盘的制造方法 - Google Patents

纯干式金刚石磨盘的制造方法 Download PDF

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CN116175431A
CN116175431A CN202211187940.7A CN202211187940A CN116175431A CN 116175431 A CN116175431 A CN 116175431A CN 202211187940 A CN202211187940 A CN 202211187940A CN 116175431 A CN116175431 A CN 116175431A
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邱瑜铭
肖双喜
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Jiangsu Fengtai Tools Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0054Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impressing abrasive powder in a matrix
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    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02Compacting only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/14Both compacting and sintering simultaneously
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24After-treatment of workpieces or articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • B24D3/10Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements for porous or cellular structure, e.g. for use with diamonds as abrasives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
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    • B24D3/342Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22CALLOYS
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
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    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
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    • B22F3/24After-treatment of workpieces or articles
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Abstract

本发明公开了一种纯干式金刚石磨盘的制造方法,属于打磨工具技术领域。磨块原材料由铜、铁、锡、钴、镍、磷铜合金等金属粉以及金刚石、液体石蜡组成,本发明通过刀头和基体的优化设计,磨盘打磨时接触面有更多的排屑孔,可以在切割混凝土、花岗岩时通过排屑孔排走更多的沙石、灰尘,打磨时产生的热量也更多的随着沙石、灰尘的流动被带走,同时通过高频铜片焊接将磨块和基体焊接在一起,提高结合力。

Description

纯干式金刚石磨盘的制造方法
技术领域
本发明涉及打磨工具技术领域,具体涉及一种纯干式金刚石磨盘的制造方法,该金刚石磨盘主要用于钢筋混凝土路面和高速公路、桥梁、地下人防工程路面的打磨修平整、翻新等)。
背景技术
在当今高速发展经济的大背景下,节能环保越来越受到关注,基础建设离不开打磨工具。传统类似产品大多都需要加水来冷却,会有大量灰尘产生,且加水地导致施工现场的难以处理,甚至出现在使用水施工过程中漏电导致人身伤害的问题。
因此,开发更为高效节能、且打磨工具使用条件更为环保,不会产生多余的废水的打磨工具极为重要,以其获得更好的经济效益,降低电能的浪费和金刚石、金属粉末的过度消耗。
发明内容
本发明的目的在于提供一种纯干式金刚石磨盘的制造方法,通过刀头和基体的优化设计,磨盘打磨时接触面有更多的排屑孔,可以在切割混凝土、花岗岩时通过排屑孔排走更多的沙石、灰尘,打磨时产生的热量也更多的随着沙石、灰尘的流动被带走,从而降低磨盘刀头不会因为过热而导致金刚石刀头烧焦影响使用。
为实现上述目的,本发明所采用的技术方案如下:
一种纯干式金刚石磨盘的制造方法,该金刚石磨盘包括磨盘基体和金刚石磨块,所述磨盘基体为45#钢,所述金刚石磨块的原料由铜、锡、镍、钴、磷铜合金、液体石蜡和金刚石组成;所述金刚石磨盘的制造方法包括如下步骤:
(1)基体加工:
根据图纸要求,将钢板加工为基体形状;
(2)金刚石磨块制备:
按照金刚石磨块原料组成称取各原料并混合均匀,然后放入模具中冷压成型,再进行热压烧结,烧结后采用砂轮砂带打磨制和出金刚石磨块;
(3)高频焊接:
将磨块放在基体相应位置上,将铜焊片放置于磨块与基体之间,然后加热至焊接温度即可;
(4)将焊接后得到的纯干式金刚石磨盘的磨块内侧面进行喷砂处理,然后用砂轮打磨金刚石磨块的工作面,并使金刚石暴露出来。
所述金刚石磨块原料中,金刚石粒度为40/50或50/60,抗压强度25-40kg;所述磷铜合金中磷元素含量为8-15wt.%。
按重量份数计,所述金刚石磨块的原料组成如下:
铜23-34份,铁29-40份,镍4-12份,钴11-20份,锡5-10份,磷铜合金5-12份,液体石蜡0.9-1.6份,金刚石1.0-2.4份。
按重量份数计,所述金刚石磨块的原料组成优选如下:
铜27-29份,铁30-38份,镍5-10份,钴12-17份,锡6-9份,磷铜合金6-11份,液体石蜡1.0-1.5份,金刚石1.2-2.2份。
按重量份数计,所述金刚石磨块的原料组成更优选如下:
铜28份,铁32份,镍7份,钴12份,锡8份,磷铜合金7份,液体石蜡1.3份,金刚石1.6份。
上述步骤(2)中,热压烧结温度为630~680℃,压力240~320g/cm2,保温时间200-300秒。
上述步骤(3)中,高频焊接温度为700~735℃,焊接时间10-15秒。
优选地,所述磨盘基体包括盘体外圈和盘体内圈;所述金刚石磨块焊接于盘体外圈上;其中:所述磨盘基体的内圈上设有水滴形状的排泄孔A,排泄孔A的数量为3-6个;所述金刚石磨块为多组,每组由两个相对设置的L形磨块组成;在每组两个L形磨块之间留有5-10mm间距形成排泄通槽,排泄通槽对应的基体上开设排泄孔B。
优选地,所述磨盘基体的中心设有安装孔,用于安装在磨机上;所述磨盘基体在盘体外圈边缘上且在相邻两组金刚石磨块之间开设排泄槽口。
优选地,所述排泄孔A开设于两组金刚石磨块之间,从而与盘体外圈的排泄槽口形成对流。
本发明设计原理及有益效果如下:
1、本发明对金刚石磨块结构进行改良,将每组磨块设计为双L型,在切割过程中,磨块打磨时产生的碎屑沙石灰尘可以通过双L型磨块之间的排泄通槽和排泄孔B快速排出,并带走磨块打磨时产生的高热量。
2、本发明因磨块设计为L形,且与基体接触面较小,因此打磨过程中磨块容易脱落。为提高磨块与基体之间的结合力,同时也因为采用铜片为焊接片,因此对磨块成分进行优化设计。磨块中采用高含量的铁以提高与基体材质间的润湿性,同时磨块中采用高含量的铜元素以提高与铜焊片的润湿性,但高温烧结及焊接时铜、铁易发生氧化,因此本发明中的铜元素一部分由单质铜提供,另一部分由铜磷合金提供,以降低热压烧结及焊接时单质铜易于氧化的倾向。铜磷合金一方面用于提供铜元素,另一方面铜磷合金具有高温吸氧的作用,在烧结及焊接时能够减小焊接面的氧含量,降低铜、铁的氧化倾向,以提高结合力。
3、本发明磨块与基体采用高频焊接,通过磨块成分设计(如锡、磷铜合金的适量添加),使烧结与焊接温度偏低,且焊接结合强度较高,安全性能更好,保证磨块在打磨钢筋、鹅卵石等硬物时能使刀头经得起高速冲撞,不易脱落。同时保证磨块的强度(如钴的适量添加)。
4、本发明磨盘基体在每组两个磨块中间切割出排泄通槽有利于产生更大的风流,加速冷却,基体中心增加了3-6个滴水型排泄孔A,可以将打磨时产生的灰尘、沙石进一步排出,和磨盘外圈的排泄孔槽口形成对流。
5、本发明采用高频焊接,焊接片为铜片,因铜的熔点较高,经过高温焊接后磨块在打磨过程中即使打磨时产生再高的温度,焊接牢度依然可以保持不变。
6、本发明金刚石磨盘不需要加水来冷却,不会因加水导致施工现场难以处理,降低了因为在使用水施工过程中漏电导致人身伤害的风险。本发明可以搭配除尘设备快速吸走灰尘。
附图说明
图1为本发明纯干式金刚石磨盘结构示意图(正视图)。
图2为本发明纯干式金刚石磨盘结构示意图(盘体径向剖视图)。
图中:1-磨盘基体;2-磨块;3-排泄孔A;4-排泄孔B;5-排泄通槽;6-排泄槽口。
具体实施方式
为了进一步理解本发明,以下结合实例对本发明进行描述,但实例仅为对本发明的特点和优点做进一步阐述,而不是对本发明权利要求的限制。
本发明提供一种纯干式金刚石磨盘的制造方法,金刚石磨盘包括磨盘基体1和金刚石磨块,如图1-2所示。所述磨盘基体为45#钢,包括盘体外圈和盘体内圈;所述金刚石磨块焊接于盘体外圈上;其中:所述磨盘基体的内圈上设有水滴形状的排泄孔A3,排泄孔A的数量为3-6个;所述金刚石磨块为多组,每组由两个相对设置的L形磨块2组成(两个L形磨块的自由端相对设置);在每组两个L形磨块之间留有5-10mm间距形成排泄通槽5,排泄通槽对应的基体上开设排泄孔B4。
所述磨盘基体的中心设有安装孔,用于安装在磨机上;所述磨盘基体在盘体外圈边缘上且在相邻两组金刚石磨块之间开设排泄槽口6。
所述排泄孔A开设于两组金刚石磨块之间(排泄孔A设于排泄槽口内侧),从而与盘体外圈的排泄槽口形成对流。
以下实施例中,所述金刚石磨块的原料由铜、锡、镍、钴、磷铜合金、液体石蜡和金刚石组成,其中金刚石粒度为40/50或50/60,抗压强度25-40kg;所述磷铜合金中磷元素含量为12wt.%。
实施例1:
本实施例金刚石磨盘制备过程如下:
1、根据图纸要求,基体用钢板淬火热处理,回火,激光切割形状,回火,磨平面,磨内孔,磨外圆,去毛刺等工序;
2、取铜粉2.85kg、铁粉3.55kg、镍粉0.9kg、钴粉1.2kg、锡粉0.6kg和磷铜合金1.0kg,放入混料桶中混40分钟后,添加液体石蜡0.11kg和金刚石0.21kg,继续混料3小时;然后将粉料灌入模具中冷压成型,热压烧结,砂轮砂带打磨磨块。其中热压烧结温度为665℃,压力300g/cm2,保温时间240秒。
3、将磨块与基体一起放在按图纸要求相应的基体位置上,磨块与基体之间放置铜焊片,将高频焊接机的调整到磨块与基体合适的位置,启动高频焊接机焊接,焊接温度为725℃,焊接时间12秒;将磨块和基体焊接在一起后,以600N/mm2强度标准对每个金刚石磨块进行焊接强度检测,检测结果为合格。
4、用磨光机打磨基体表面光亮,然后用砂轮打磨金刚石磨块的工作面,并使金刚石暴露出来,然后进行表面喷漆,烘干,以防止表面生锈,最后以600N/mm2强度标准对每个金刚石磨块进行焊接强度检测,合格后进行表面喷漆,烘干,以防止表面生锈,最后丝印,激光打标,包装,入库。
实施例2:
本实施例金刚石磨盘制备过程如下:
1、根据图纸要求,基体用钢板淬火热处理,回火,激光切割形状,回火,磨平面,磨内孔,磨外圆,去毛刺等工序;
2、取铜粉2.8kg、铁粉3.2kg、镍粉0.7kg、钴粉1.2kg、锡粉0.8kg和磷铜合金0.7kg,放入混料桶中混40分钟后,添加液体石蜡0.13kg和金刚石0.16kg,继续混料3小时;然后将粉料灌入模具中冷压成型,热压烧结,砂轮砂带打磨磨块。其中热压烧结温度为665℃,压力300g/cm2,保温时间240秒。
3、将磨块与基体一起放在按图纸要求相应的基体位置上,磨块与基体之间放置铜焊片,将高频焊接机的调整到磨块与基体合适的位置,启动高频焊接机焊接,焊接温度为725℃,焊接时间12秒;将磨块和基体焊接在一起后,以600N/mm2强度标准对每个金刚石磨块进行焊接强度检测,检测结果为合格。
4、用磨光机打磨基体表面光亮,然后用砂轮打磨金刚石磨块的工作面,并使金刚石暴露出来,然后进行表面喷漆,烘干,以防止表面生锈,最后以600N/mm2强度标准对每个金刚石磨块进行焊接强度检测,合格后进行表面喷漆,烘干,以防止表面生锈,最后丝印,激光打标,包装,入库。
实施例3:
本实施例金刚石磨盘制备过程如下:
1、根据图纸要求,基体用钢板淬火热处理,回火,激光切割形状,回火,磨平面,磨内孔,磨外圆,去毛刺等工序;
2、取铜粉2.85kg、铁粉3.75kg、镍粉0.6kg、钴粉1.5kg、锡粉0.85kg和磷铜合金0.9kg,放入混料桶中混40分钟后,添加液体石蜡0.13kg和金刚石0.18kg,继续混料3小时;然后将粉料灌入模具中冷压成型,热压烧结,砂轮砂带打磨磨块。其中热压烧结温度为670℃,压力300g/cm2,保温时间240秒。
3、将磨块与基体一起放在按图纸要求相应的基体位置上,磨块与基体之间放置铜焊片,将高频焊接机的调整到磨块与基体合适的位置,启动高频焊接机焊接,焊接温度为715℃,焊接时间12秒;将磨块和基体焊接在一起后,以600N/mm2强度标准对每个金刚石磨块进行焊接强度检测,检测结果为合格。
4、用磨光机打磨基体表面光亮,然后用砂轮打磨金刚石磨块的工作面,并使金刚石暴露出来,然后进行表面喷漆,烘干,以防止表面生锈,最后以600N/mm2强度标准对每个金刚石磨块进行焊接强度检测,合格后进行表面喷漆,烘干,以防止表面生锈,最后丝印,激光打标,包装,入库。

Claims (10)

1.一种纯干式金刚石磨盘的制造方法,其特征在于:该金刚石磨盘包括磨盘基体和金刚石磨块,所述磨盘基体为45#钢,所述金刚石磨块的原料由铜、锡、镍、钴、磷铜合金、液体石蜡和金刚石组成;所述金刚石磨盘的制造方法包括如下步骤:
(1)基体加工:
根据图纸要求,将钢板加工为基体形状;
(2)金刚石磨块制备:
按照金刚石磨块原料组成称取各原料并混合均匀,然后放入模具中冷压成型,再进行热压烧结,烧结后采用砂轮砂带打磨制和出金刚石磨块;
(3)高频焊接:
将磨块放在基体相应位置上,将铜焊片放置于磨块与基体之间,然后加热至焊接温度即可;
(4)将焊接后得到的纯干式金刚石磨盘的磨块内侧面进行喷砂处理,然后用砂轮打磨金刚石磨块的工作面,并使金刚石暴露出来。
2.根据权利要求1所述的纯干式金刚石磨盘的制造方法,其特征在于:所述金刚石磨块原料中,金刚石粒度为40/50或50/60,抗压强度25-40kg;所述磷铜合金中磷元素含量为8-15wt.%。
3.根据权利要求2所述的纯干式金刚石磨盘的制造方法,其特征在于:按重量份数计,所述金刚石磨块的原料组成如下:
铜23-34份,铁29-40份,镍4-12份,钴11-20份,锡5-10份,磷铜合金5-12份,液体石蜡0.9-1.6份,金刚石1.0-2.4份。
4.根据权利要求2所述的纯干式金刚石磨盘的制造方法,其特征在于:按重量份数计,所述金刚石磨块的原料组成如下:
铜27-29份,铁30-38份,镍5-10份,钴12-17份,锡6-9份,磷铜合金6-11份,液体石蜡1.0-1.5份,金刚石1.2-2.2份。
5.根据权利要求2所述的纯干式金刚石磨盘的制造方法,其特征在于:按重量份数计,所述金刚石磨块的原料组成如下:
铜28份,铁32份,镍7份,钴12份,锡8份,磷铜合金7份,液体石蜡1.3份,金刚石1.6份。
6.根据权利要求1所述的纯干式金刚石磨盘的制造方法,其特征在于:步骤(2)中,热压烧结温度为630~680℃,压力240~320g/cm2,保温时间200-300秒。
7.根据权利要求1所述的纯干式金刚石磨盘的制造方法,其特征在于:步骤(3)中,高频焊接温度为700~735℃,焊接时间10-15秒。
8.根据权利要求1所述的纯干式金刚石磨盘的制造方法,其特征在于:所述磨盘基体包括盘体外圈和盘体内圈;所述金刚石磨块焊接于盘体外圈上;其中:所述磨盘基体的内圈上设有水滴形状的排泄孔A,排泄孔A的数量为3-6个;所述金刚石磨块为多组,每组由两个相对设置的L形磨块组成;在每组两个L形磨块之间留有5-10mm间距形成排泄通槽,排泄通槽对应的基体上开设排泄孔B。
9.根据权利要求8所述的纯干式金刚石磨盘的制造方法,其特征在于:所述磨盘基体的中心设有安装孔,用于安装在磨机上;所述磨盘基体在盘体外圈边缘上且在相邻两组金刚石磨块之间开设排泄槽口。
10.根据权利要求8所述的纯干式金刚石磨盘的制造方法,其特征在于:所述排泄孔A开设于两组金刚石磨块之间,从而与盘体外圈的排泄槽口形成对流。
CN202211187940.7A 2022-09-28 2022-09-28 纯干式金刚石磨盘的制造方法 Pending CN116175431A (zh)

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