WO2020103692A1 - 一种挤型散热体埋入式压铸工艺及其压铸产品 - Google Patents

一种挤型散热体埋入式压铸工艺及其压铸产品

Info

Publication number
WO2020103692A1
WO2020103692A1 PCT/CN2019/116047 CN2019116047W WO2020103692A1 WO 2020103692 A1 WO2020103692 A1 WO 2020103692A1 CN 2019116047 W CN2019116047 W CN 2019116047W WO 2020103692 A1 WO2020103692 A1 WO 2020103692A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
heat sink
aluminum
casting
die
Prior art date
Application number
PCT/CN2019/116047
Other languages
English (en)
French (fr)
Inventor
史沸涛
楼林海
刘佳
成晓辉
Original Assignee
芜湖仅一机械有限公司
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 芜湖仅一机械有限公司 filed Critical 芜湖仅一机械有限公司
Publication of WO2020103692A1 publication Critical patent/WO2020103692A1/zh

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/0063Casting in, on, or around objects which form part of the product finned exchangers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure

Definitions

  • the invention relates to the technical field of die casting, in particular to an embedded die-casting process of an extruded heat sink and a die-casting product using the same.
  • the base includes The bottom plate, the left and right side plates and the front and rear side plates provided on the four sides of the bottom plate, the heat sink group includes a plurality of heat sinks arranged at vertical intervals, and the top width of the heat sink is 0.8mm-1mm, The draft angle of the heat sink is 1 ° to 1.2 °, the height of the heat sink is 50mm-80mm, and the length of the heat sink is 400mm-800mm.
  • China Patent Publication No. CN100506432C discloses a magnesium alloy copper die-casting composite column airfoil convection radiator die-casting process, which has the following process steps: a. Making inserts; b. Die-casting; c. Demolding.
  • the magnesium alloy copper die-casting composite column wing type convection radiator prepared by this method is made of magnesium alloy, which has light weight, good strength, good decoration and low cost.
  • the built-in waterway insert is made of copper, which has good corrosion resistance.
  • magnesium alloy is formed in the die-casting mold under high temperature liquid state, the material density is large, the surface has no welding processing points, and it is durable; the built-in water channel insert and the body are once die-casting embedded, the strength of the insert is high, magnesium alloy and copper Combination is reliable.
  • the two units formed are the radiator body and the water channel, which are different from the purpose of the present invention and are not applicable.
  • the purpose of the present invention is to provide an embedded die-casting process of an extruded heat sink to solve the above-mentioned defects caused in the prior art.
  • An extrusion die-casting process of extruded heat sink includes the following steps:
  • the ejecting mechanism in the movable mold ejects the final product.
  • the material of the product is aluminum alloy.
  • the pouring parameters in the step (6) are: pouring temperature 650-670 ° C, filling time 0.05-0.15s, in-gate filling speed 38-42m / s, casting pressure 68-72MPa.
  • the blade aluminum extrusion is provided with a plurality of buckle grooves.
  • the cross-sectional shape of the buckle groove is trapezoidal or triangular, and a circular arc transition is adopted at the corner.
  • the gate thickness is 3 mm
  • the gate width is 313-316 mm.
  • an extruded heat sink embedded die-casting product which is manufactured using the above process
  • the advantages of the present invention are: in a newly designed way, the product blade and the body part are divided into two parts, the blade part is selected by the extrusion molding process and then CNC processed, and the processed blade is pre-embedded in the mold cavity before die casting Filling improves the yield of die-casting molding, reduces the cost of the die-casting process, reduces the difficulty of the die-casting mold, and reduces the investment cost of the mold. Due to the split die-casting process, the number of blades in the limited area is increased, the blade thickness is reduced, and the blade is increased. The overall area increases the heat dissipation rate. In addition, in order to obtain qualified products, through strict control of relevant casting parameters, such as pouring temperature, filling time, etc., the blade aluminum extrusion insert can be perfectly combined with the body part, and the quality of the product is guaranteed.
  • FIG. 1 is a schematic structural diagram of the present invention.
  • FIG. 2 is a front view of the present invention.
  • 1-blade aluminum extruded parts 2-body, 3-buckle groove, 4-protrusion.
  • an embedded die-casting process of extruded heat sink includes the following steps:
  • the ejecting mechanism in the movable mold ejects the final product.
  • the material of the product is aluminum alloy.
  • the pouring parameters in the step (6) are: pouring temperature 650 ° C, filling time 0.05s, filling speed of ingate 42m / s, casting pressure 72MPa.
  • the blade aluminum extrusion 1 is provided with a plurality of buckle grooves 3, the cross-sectional shape of the buckle groove 3 is trapezoidal or triangular, and the corners adopt a circular arc transition.
  • the aluminum liquid will These buckle grooves 3 are filled to form a protrusion 4 cooperating therewith, so as to realize a stable connection between the body 2 and the aluminum extrusion 1 of the blade.
  • the gate thickness is 3 mm and the gate width is 316 mm.
  • the rest is the same as Example 1, except that the pouring parameters in the step (6) are: pouring temperature 655 ° C, filling time 0.08s, filling speed of the inner gate 39m / s, casting pressure 69MPa; the inner The gate thickness is 3mm, and the gate width is 315mm.
  • the rest is the same as that in Example 1, except that the pouring parameters in the step (6) are: pouring temperature 660 ° C, filling time 0.1s, filling speed of ingate 40m / s, casting pressure 70MPa; the pouring The gate thickness is 3mm and the gate width is 314mm.
  • the rest is the same as that in Example 1, except that the pouring parameters in the step (6) are: pouring temperature 665 ° C, filling time 0.12s, in-gate filling speed 39m / s, casting pressure 69MPa; the pouring The gate thickness is 3mm and the gate width is 314mm.
  • the rest is the same as Example 1, except that the pouring parameters in the step (6) are: pouring temperature 670 ° C, filling time 0.15s, filling speed of the inner gate 38m / s, casting pressure 68MPa; the inner The gate thickness is 3mm, and the gate width is 313mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

一种挤型散热体埋入式压铸工艺,涉及压铸技术领域,包括如下步骤:(1)通过专用模具及成型工艺,得到叶片铝挤件(1);(2)对叶片铝挤件(1)进行整形处理,保证平面度控制在0.8以下;(3)整形后再进行CNC加工,满足所需产品要求,获得成品铝挤件;(4)模具打开,将上述步骤中获得的成品铝挤件预埋入定模型腔,根据散热筋进行预定位;(5)模具合模,依据动模侧六处小圆凸台,将铝挤件压入定模型腔;(6)压铸成型,充填、凝固;(7)模具开模,定模侧顶出机构将铝挤件与本体(2)同步顶出留于动模一侧,叶片与本体(2)已凝固并结为一体;(8)动模内的顶出机构顶出最终成品;该方法提高了良品率,降低了成本,降低了模具难度。

Description

一种挤型散热体埋入式压铸工艺及其压铸产品 技术领域
本发明涉及压铸技术领域,具体涉及一种挤型散热体埋入式压铸工艺以及应用该工艺的压铸产品。
背景技术
目前,我厂的1200吨位以上压铸件,采用整体式压铸方式,因叶片高度较高与模具本身寿命与工艺限制,只能将叶片加厚才能有成品几率,成型难度较大,散热叶片成型有缺陷,模具成本高,良率底,叶片壁厚较厚,散热片在局限区域内叶片数量少,导致面积小散热速率底。如中国专利公开号为CN207716944U公开了一种压铸散热器,包括基座和设在基座上的散热片组,所述的基座和散热片组通过压铸工艺一体成型,所述的基座包括底板、设在底板四侧的左、右侧板以及前、后侧板,所述的散热片组包括若干竖直间隔设置的散热片,所述的散热片的顶部宽度为0.8mm~1mm,所述的散热片的拔模角为1°~1.2°,所述的散热片的高度为50mm-80mm,所述的散热片的长度为400mm-800mm。
中国专利公开号为CN100506432C公开了一种镁合金铜压铸复合柱翼型对流散热器压铸工艺,具有如下工艺步骤:a.制作嵌件;b.压铸;c.脱模。利用该方法制备的镁合金铜压铸复合柱翼型对流散热器,本体为镁合金,其重量轻,强度好,装饰性好,成本低;内置水道嵌件为铜材,其耐腐蚀性能好,使用寿命长;镁合金在高温液态下在压铸模具中成形,材质密度大,表面无焊接加工点面,坚固耐用;内置水道嵌件和本体一次压铸包嵌,嵌件强度高,镁合金和铜结合可靠。但是可以看出,其成型的两个单元分别是散热器本体与水道,与本发明的目的存在区别,并不适用。
发明内容
本发明的目的在于提供一种挤型散热体埋入式压铸工艺,以解决现有技术中导致的上述缺陷。
一种挤型散热体埋入式压铸工艺,包括如下步骤:
(1)通过专用模具及成型工艺,得到叶片铝挤件;
(2)对叶片铝挤件进行整形处理,保证平面度控制在0.8以下;
(3)整形后再进行CNC加工,满足所需产品要求,获得成品铝挤件;
(4)模具打开,将上述步骤中获得的成品铝挤件预埋入定模型腔,根据散热筋进行预定位;
(5)模具合模,依据动模侧六处小圆凸台,将铝挤件压入定模型腔;
(6)压铸成型,充填、凝固;
(7)模具开模,定模侧顶出机构将铝挤件与本体同步顶出留于动模一侧,叶片与本体已凝固并结为一体;
(8)动模内的顶出机构顶出最终成品。
优选的,所述产品的材质为铝合金。
优选的,所述步骤(6)中的浇注参数为:浇注温度650-670℃,填充时间0.05-0.15s,内浇口填充速度38-42m/s,铸造压力68-72MPa。
优选的,所述叶片铝挤件上设有若干扣槽。
优选的,所述扣槽的截面形状为梯形或三角形,且拐角处采用圆弧过渡。
优选的,所述浇口厚度为3mm,浇口宽度为313-316mm。
优选的,一种挤型散热体埋入式压铸产品,其采用上述的工艺制得
本发明的优点在于:新设计的方式,将产品叶片与本体部分一分为二,叶片部分选择挤型工艺成型后再进行CNC加工,将加工好的叶片预埋入模具型腔内再进行压铸充填,提高了压铸成型良率,减轻了压铸过程成本,减小压铸模具难度,减轻模具投入成本,由于采用了分体式压铸工艺,增加局限区域内叶片数量,降低了叶片厚度,增大了叶片总体面积,提高了散热速率。另外,为了获得合格的产品,通过严格控制相关铸造参数,如浇注温度、填充时间等,叶片铝挤件嵌件能够与本体部分完美结合,产品的质量得到了保证。
附图说明
图1为本发明的结构示意图。
图2为本发明的主视图。
其中,1-叶片铝挤件,2-本体,3-扣槽,4-凸起。
具体实施方式
为使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施方式,进一步阐述本发明。
实施例1
如图1和图2所示,一种挤型散热体埋入式压铸工艺,包括如下步骤:
(1)通过专用模具及成型工艺,得到叶片铝挤件1;
(2)对叶片铝挤件1进行整形处理,保证平面度控制在0.8以下;
(3)整形后再进行CNC加工,满足所需产品要求,获得成品铝挤件;
(4)模具打开,将上述步骤中获得的成品铝挤件预埋入定模型腔,根据散热筋进行预定位;
(5)模具合模,依据动模侧六处小圆凸台,将铝挤件压入定模型腔;
(6)压铸成型,充填、凝固;
(7)模具开模,定模侧顶出机构将铝挤件与本体2同步顶出留于动模一侧,叶片与本体2已凝固并结为一体;
(8)动模内的顶出机构顶出最终成品。
在本实施例中,所述产品的材质为铝合金。
在本实施例中,所述步骤(6)中的浇注参数为:浇注温度650℃,填充时间0.05s,内浇口填充速度42m/s,铸造压力72MPa。
在本实施例中,所述叶片铝挤件1上设有若干扣槽3,所述扣槽3的截面形状为梯形或三角形,且拐角处采用圆弧过渡,在压铸过程中,铝液会填充这些扣槽3,形成与其配合的凸起4,从而实现本体2与叶片铝挤件1的稳定连接。
在本实施例中,所述浇口厚度为3mm,浇口宽度为316mm。
实施例2
其余与实施例1相同,不同之处在于:所述步骤(6)中的浇注参数为:浇注温度655℃,填充时间0.08s,内浇口填充速度39m/s,铸造压力69MPa;所述内浇口厚度为3mm,内浇口宽度为315mm。
实施例3
其余与实施例1相同,不同之处在于:所述步骤(6)中的浇注参数为:浇注温度660℃,填充时间0.1s,内浇口填充速度40m/s,铸造压力70MPa;所述 浇口厚度为3mm,浇口宽度为314mm。
实施例4
其余与实施例1相同,不同之处在于:所述步骤(6)中的浇注参数为:浇注温度665℃,填充时间0.12s,内浇口填充速度39m/s,铸造压力69MPa;所述浇口厚度为3mm,浇口宽度为314mm。
实施例5
其余与实施例1相同,不同之处在于:所述步骤(6)中的浇注参数为:浇注温度670℃,填充时间0.15s,内浇口填充速度38m/s,铸造压力68MPa;所述内浇口厚度为3mm,内浇口宽度为313mm。
由技术常识可知,本发明可以通过其它的不脱离其精神实质或必要特征的实施方案来实现。因此,上述公开的实施方案,就各方面而言,都只是举例说明,并不是仅有的。所有在本发明范围内或在等同于本发明的范围内的改变均被本发明包含。

Claims (7)

  1. 一种挤型散热体埋入式压铸工艺,其特征在于,包括如下步骤:
    (1)通过专用模具及成型工艺,得到叶片铝挤件(1);
    (2)对叶片铝挤件(1)进行整形处理,保证平面度控制在0.8以下;
    (3)整形后再进行CNC加工,满足所需产品要求,获得成品铝挤件;
    (4)模具打开,将上述步骤中获得的成品铝挤件预埋入定模型腔,根据散热筋进行预定位;
    (5)模具合模,依据动模侧六处小圆凸台,将铝挤件压入定模型腔;
    (6)压铸成型,充填、凝固;
    (7)模具开模,定模侧顶出机构将铝挤件与本体(2)同步顶出留于动模一侧,叶片与本体(2)已凝固并结为一体;
    (8)动模内的顶出机构顶出最终成品。
  2. 根据权利要求1所述的一种挤型散热体埋入式压铸工艺,其特征在于:所述产品的材质为铝合金。
  3. 根据权利要求2所述的一种挤型散热体埋入式压铸工艺,其特征在于:所述步骤(6)中的浇注参数为:浇注温度650-670℃,填充时间0.05-0.15s,内浇口填充速度38-42m/s,铸造压力68-72MPa。
  4. 根据权利要求1所述的一种挤型散热体埋入式压铸工艺,其特征在于:所述叶片铝挤件(1)上设有若干扣槽(3)。
  5. 根据权利要求4所述的一种挤型散热体埋入式压铸工艺,其特征在于:所述扣槽(3)的截面形状为梯形或三角形,且拐角处采用圆弧过渡。
  6. 根据权利要求3所述的一种挤型散热体埋入式压铸工艺,其特征在于:浇口厚度为3mm,浇口宽度为313-316mm。
  7. 一种挤型散热体埋入式压铸产品,其特征在于:采用权利要求1-6中任一项所述的工艺制得。
PCT/CN2019/116047 2018-11-19 2019-11-06 一种挤型散热体埋入式压铸工艺及其压铸产品 WO2020103692A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811378301.2 2018-11-19
CN201811378301.2A CN109304451A (zh) 2018-11-19 2018-11-19 一种挤型散热体埋入式压铸工艺及其压铸产品

Publications (1)

Publication Number Publication Date
WO2020103692A1 true WO2020103692A1 (zh) 2020-05-28

Family

ID=65223355

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/116047 WO2020103692A1 (zh) 2018-11-19 2019-11-06 一种挤型散热体埋入式压铸工艺及其压铸产品

Country Status (2)

Country Link
CN (1) CN109304451A (zh)
WO (1) WO2020103692A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109304451A (zh) * 2018-11-19 2019-02-05 芜湖仅机械有限公司 一种挤型散热体埋入式压铸工艺及其压铸产品

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1131771A (ja) * 1997-07-14 1999-02-02 Riyoosan:Kk 半導体素子用ヒートシンクの製造方法
WO1999008821A1 (en) * 1997-08-14 1999-02-25 Abb Industry Oy Method for producing a cooling element, and a cooling element
CN103521735A (zh) * 2013-10-16 2014-01-22 重庆大江美利信压铸有限责任公司 一种铝压铸件镶件结构
CN105478723A (zh) * 2015-12-31 2016-04-13 东莞市建昌实业有限公司 密集型叶片挤型材结构与压铸结构的嵌合工艺
DE102015202196A1 (de) * 2015-02-06 2016-08-11 Schmidhauser Ag Verfahren zur Herstellung eines Kühlkörpers für einen Frequenzumrichter und Frequenzumrichter
CN107771005A (zh) * 2016-08-19 2018-03-06 台达电子工业股份有限公司 散热模块及其制造方法
CN109304451A (zh) * 2018-11-19 2019-02-05 芜湖仅机械有限公司 一种挤型散热体埋入式压铸工艺及其压铸产品
CN209379895U (zh) * 2018-11-19 2019-09-13 芜湖仅一机械有限公司 一种挤型散热体埋入式压铸产品

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10104375A (ja) * 1996-09-25 1998-04-24 Sato Shoji Kk ヒートシンク及びヒートシンクの製造方法
JP2004071599A (ja) * 2002-08-01 2004-03-04 Showa Denko Kk ヒートシンクおよびその製造方法
CN104148617B (zh) * 2013-05-15 2016-07-13 苏州春兴精工股份有限公司 压铸新型散热片的方法
CN104275471A (zh) * 2013-07-02 2015-01-14 苏州春兴精工股份有限公司 一种新的散热片压铸方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1131771A (ja) * 1997-07-14 1999-02-02 Riyoosan:Kk 半導体素子用ヒートシンクの製造方法
WO1999008821A1 (en) * 1997-08-14 1999-02-25 Abb Industry Oy Method for producing a cooling element, and a cooling element
CN103521735A (zh) * 2013-10-16 2014-01-22 重庆大江美利信压铸有限责任公司 一种铝压铸件镶件结构
DE102015202196A1 (de) * 2015-02-06 2016-08-11 Schmidhauser Ag Verfahren zur Herstellung eines Kühlkörpers für einen Frequenzumrichter und Frequenzumrichter
CN105478723A (zh) * 2015-12-31 2016-04-13 东莞市建昌实业有限公司 密集型叶片挤型材结构与压铸结构的嵌合工艺
CN107771005A (zh) * 2016-08-19 2018-03-06 台达电子工业股份有限公司 散热模块及其制造方法
CN109304451A (zh) * 2018-11-19 2019-02-05 芜湖仅机械有限公司 一种挤型散热体埋入式压铸工艺及其压铸产品
CN209379895U (zh) * 2018-11-19 2019-09-13 芜湖仅一机械有限公司 一种挤型散热体埋入式压铸产品

Also Published As

Publication number Publication date
CN109304451A (zh) 2019-02-05

Similar Documents

Publication Publication Date Title
CN103716665B (zh) 一种机顶盒及其制备方法
CN107363224B (zh) 一种铸件的铸造系统及方法
CN103192051B (zh) 一种超薄壁轻金属合金外壳或框架的制造方法
CN103978156B (zh) 一种控制熔模铸件凝固与冷却的方法
CN113967729B (zh) 一种铝合金铸件的双补中断式反重力浇注系统及浇注方法
WO2020103692A1 (zh) 一种挤型散热体埋入式压铸工艺及其压铸产品
JP4163462B2 (ja) 鋳造用金型
CN105665635A (zh) 一种超大厚壁球铁件的铸造方法
CN106623856B (zh) 一种提高挤压铸造活塞铸件质量的方法和装置
CN105903927B (zh) 一种汽车轮毂挤压铸造模具
CN108393438B (zh) 铁型覆砂垂直分型铸造轴承盖铸件的工艺装置及生产方法
CN201997673U (zh) 一种改善铝合金轮圈散热的模具
CN106180631B (zh) 一种汽车挂车阀模具及其铸造方法
CN209632097U (zh) 一种端盖毛坯的液态模锻模具装置
CN209379895U (zh) 一种挤型散热体埋入式压铸产品
CN206425486U (zh) 一种垂直线铸造汽车空调斜盘用砂芯模具
CN211539442U (zh) 一种动车用外壳低压铸造模具
CN109175260A (zh) 一种浇口加压轮毂铸造模具及其铸造方法
WO2021223587A1 (zh) 电子蜡烛结构及生产方法、电子蜡烛的蜡筒
CN212792887U (zh) 用于中型薄壁箱型铝铸件的全金属型重力铸造模具
CN107243599A (zh) 一种覆膜砂壳型灌涂铸造工艺无飞镖边技术
CN205732907U (zh) 一种汽车轮毂挤压铸造模具
CN113927017A (zh) 一种副车架铝低压铸造模具
CN208437651U (zh) 模具冷却结构
CN108555251B (zh) 一种轮毂的重力铸造成型设备及工艺

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19887586

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19887586

Country of ref document: EP

Kind code of ref document: A1