CN85102360A - 弧形砂箱 - Google Patents

弧形砂箱 Download PDF

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Publication number
CN85102360A
CN85102360A CN 85102360 CN85102360A CN85102360A CN 85102360 A CN85102360 A CN 85102360A CN 85102360 CN85102360 CN 85102360 CN 85102360 A CN85102360 A CN 85102360A CN 85102360 A CN85102360 A CN 85102360A
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foundry goods
box
sandbox
curved plate
curved
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CN85102360B (zh
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孔令清
杨恩成
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SHAAXI MECHANICAL ENGINEERING COLLEGE
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SHAAXI MECHANICAL ENGINEERING COLLEGE
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Priority to CN85102360A priority Critical patent/CN85102360B/zh
Publication of CN85102360A publication Critical patent/CN85102360A/zh
Publication of CN85102360B publication Critical patent/CN85102360B/zh
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Abstract

一种弧形砂箱,沿箱框内壁设有弧形钢板。用这种砂箱生产铸件时,弧形钢板受热膨胀,产生挤压铸件的力,使铸件在挤压力作用下凝固,从而解决了一般砂箱在生产铸件时,铸型退让,箱框受热膨胀,铸件随之胀大,缩孔、缩松严重的问题。
这种砂箱适用于厚大石墨铸铁件和沉缩严重的高大铸钢件。

Description

本发明属于铸造工艺装备。
采用一般砂箱生产铸件时,型砂退让和箱框受热膨胀,铸件随之胀大,从而增大了铸件的缩孔率,尤其是厚大铸件更为突出。针对上述缺点,提供了一种弧形砂箱。
附图一是弧形砂箱结构示意图(主视图),其中一为箱框,2为弧形钢板。
附图二是弧形砂箱结构示意图(俯视图),其中1为箱框,2为弧形钢板。
本发明的要点在于,沿箱框内壁设置弧形钢板。采用这种砂箱生产铸件时,弧形钢板受热膨胀,产生挤压铸件的力,使铸件因受到挤压力不至胀大,从而提高了铸件的内在质量。
砂箱的弧形钢板的厚度可为2mm~6mm,其形状可是园心角为90°的弧线。砂箱的箱框可用钢筋围制而成。
用这种砂箱生产石墨铸铁件时,能充分利用石墨化膨胀进行自身补缩。用于生产厚大石墨铸铁件效果更佳。
这种砂箱在用于生产高大铸钢件时,可抑制其沉缩。

Claims (5)

1、一种砂箱,具有箱框[1],本发明的特征在于,沿箱框内壁设置弧形钢板[2]。
2、按照权利要求1所述的砂箱,其特征在于,弧形钢板〔2〕的厚度为2mm~6mm。
3、按照权利要求1或2所述的砂箱,其特征在于,弧形钢板〔2〕的形状是园心角为90度的弧线。
4、按照权利要求1或2所述的砂箱,其特征在于,箱框用钢筋围制而成。
5、按照权利要求3所述的砂箱,其特征在于,箱框用钢筋围制而成。
CN85102360A 1985-04-01 1985-04-01 弧形砂箱 Expired CN85102360B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN85102360A CN85102360B (zh) 1985-04-01 1985-04-01 弧形砂箱

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN85102360A CN85102360B (zh) 1985-04-01 1985-04-01 弧形砂箱

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CN85102360A true CN85102360A (zh) 1986-06-10
CN85102360B CN85102360B (zh) 1988-07-13

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CN85102360A Expired CN85102360B (zh) 1985-04-01 1985-04-01 弧形砂箱

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CN (1) CN85102360B (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979182A (zh) * 2010-10-28 2011-02-23 溧阳市科华机械制造有限公司 具有钢板衬板的砂箱
CN102962408A (zh) * 2012-11-21 2013-03-13 河南豫兴铸造有限公司 一种用于制造高强度砂模的节砂型砂箱
CN107457371A (zh) * 2017-08-30 2017-12-12 宜兴市金纳利机械制造有限公司 一种大型汽车模具铸件造型组箱

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979182A (zh) * 2010-10-28 2011-02-23 溧阳市科华机械制造有限公司 具有钢板衬板的砂箱
CN101979182B (zh) * 2010-10-28 2012-07-25 溧阳市科华机械制造有限公司 具有钢板衬板的砂箱
CN102962408A (zh) * 2012-11-21 2013-03-13 河南豫兴铸造有限公司 一种用于制造高强度砂模的节砂型砂箱
CN102962408B (zh) * 2012-11-21 2014-10-22 河南豫兴铸造有限公司 一种用于制造高强度砂模的节砂型砂箱
CN107457371A (zh) * 2017-08-30 2017-12-12 宜兴市金纳利机械制造有限公司 一种大型汽车模具铸件造型组箱

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CN85102360B (zh) 1988-07-13

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