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1.发明公开Permanent mould with insert for casting mill balls and other crushing elements 失效具有铸造刀片和其他冲击元件的刀片的永久模具
公开(公告)号：EP0178296A3
公开(公告)日：1987-11-11
申请号：EP85890256
申请日：1985-10-11
摘要： The subject of this invention is production of permanent metal moulds (1) with insert (2) of the gating system for casting mill balls and other crushing elements. The known method for mill balls casting are those using moulds of sand-binder mixture which moulds can serve for a single use only. Disadvantage of such moulds is in their lower heat conductivity which affects the structure and properties of produced balls. To get the appropriate quality grade of balls it is necessary, apart from the high content of alloying elements, to apply very complex thermal treatment. Authors of this invention have solved the problem in such a way that one metal mould can serve for repetitive use of several thousand times. With regard to thermo-physical properties of the mould, cooling of cast balls can be very intensive owing to which the casting process gives such structure and other ball properties that balls of high quality can be produced even from materials having a lower content of alloying elements. The problem of ball rising is solved by introducing an insert made from sand-binder mixture in which way the issue of controlled metal solidification in the mould has also been solved. To increase the operational life of tools (metal moulds), and to make them easy replaceable, and to lower the costs of mould amortization, authors have introduced ball crystallizers (14) in the mould (1) as replaceable part. In this way, after sometime of mould operation, only the crystallizers (14) are to be replaced and since all other mould parts (2-13) are rather resistantto wear and tear their operational life will last long. Crystallizers (14) are made from alloyed steel, suitable for water cooling, or are made from hard copper i.e. Cu-Cd; Cu-Cr; Cu-Ag and Cu-Be to which the alloying elements are added in small quantities which do not affect heat conductivity of copper but on the contrary increase its hardness.
摘要翻译： 本发明的目的是生产具有用于铸造球和其它破碎元件的浇注系统的刀片（2）的永久性金属模具（1）。 用于研磨球铸造的已知方法是使用砂 - 粘合剂混合物的模具，其模具可以仅用于一次使用。 这种模具的缺点在于其较低的导热性，其影响所生产的球的结构和性能。 为了获得适当的质量等级的球，除了高含量的合金元素外，还需要应用非常复杂的热处理。 本发明的作者以一种金属模可以重复使用数千次的方式解决了这个问题。 关于模具的热物理性质，浇铸球的冷却可能非常集中，由于铸造工艺具有这样的结构和其它球性能，即使是具有较低含量的合金元素的材料也可以生产高质量的球 。 通过引入由砂 - 粘合剂混合物制成的插入物来解决球上升的问题，从而解决了模具中受控金属凝固问题。 为了增加工具（金属模具）的使用寿命，为了使其易于更换并降低模具摊销成本，作者将模具（1）中的球结晶器（14）作为可更换部件以这种方式引入了一些 模具操作时间，只有结晶器（14）被更换，并且由于所有其他模具部件（2-13）相当耐磨损，其使用寿命将持续很长时间。 结晶器（14）由适合于水冷却的合金钢制成，或由硬质铜即Cu-Cd制成; 的Cu-Cr; 少量添加合金元素的Cu-Ag和Cu-Be，其不影响铜的导热性，反之则增加其硬度。
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2.发明公开Permanent mould with insert for casting mill balls and other crushing elements 失效Dauergiessform mit Einsatz zum Giessen von Mahlkugeln undähnlichenBrechelementen。
公开(公告)号：EP0178296A2
公开(公告)日：1986-04-16
申请号：EP85890256.2
申请日：1985-10-11
摘要： The subject of this invention is production of permanent metal moulds (1) with insert (2) of the gating system for casting mill balls and other crushing elements.
The known method for mill balls casting are those using moulds of sand-binder mixture which moulds can serve for a single use only. Disadvantage of such moulds is in their lower heat conductivity which affects the structure and properties of produced balls. To get the appropriate quality grade of balls it is necessary, apart from the high content of alloying elements, to apply very complex thermal treatment. Authors of this invention have solved the problem in such a way that one metal mould can serve for repetitive use of several thousand times. With regard to thermo-physical properties of the mould, cooling of cast balls can be very intensive owing to which the casting process gives such structure and other ball properties that balls of high quality can be produced even from materials having a lower content of alloying elements. The problem of ball rising is solved by introducing an insert made from sand-binder mixture in which way the issue of controlled metal solidification in the mould has also been solved.
To increase the operational life of tools (metal moulds), and to make them easy replaceable, and to lower the costs of mould amortization, authors have introduced ball crystallizers (14) in the mould (1) as replaceable part. In this way, after sometime of mould operation, only the crystallizers (14) are to be replaced and since all other mould parts (2-13) are rather resistantto wear and tear their operational life will last long.
Crystallizers (14) are made from alloyed steel, suitable for water cooling, or are made from hard copper i.e. Cu-Cd; Cu-Cr; Cu-Ag and Cu-Be to which the alloying elements are added in small quantities which do not affect heat conductivity of copper but on the contrary increase its hardness.摘要翻译： 本发明的目的是生产具有用于铸造球和其它破碎元件的浇注系统的刀片（2）的永久性金属模具（1）。 用于研磨球铸造的已知方法是使用砂 - 粘合剂混合物的模具，其模具可以仅用于一次使用。 这种模具的缺点在于其较低的导热性，其影响所生产的球的结构和性能。 为了获得适当的质量等级的球，除了高含量的合金元素外，还需要应用非常复杂的热处理。 本发明的作者以一种金属模可以重复使用数千次的方式解决了这个问题。 关于模具的热物理性质，浇铸球的冷却可能非常集中，由于铸造工艺具有这样的结构和其它球性能，即使是具有较低含量的合金元素的材料也可以生产高质量的球 。 通过引入由砂 - 粘合剂混合物制成的插入物来解决球上升的问题，从而解决了模具中受控金属凝固问题。 为了增加工具（金属模具）的使用寿命，为了使其易于更换并降低模具摊销成本，作者将模具（1）中的球结晶器（14）作为可更换部件以这种方式引入了一些 模具操作时间，只有结晶器（14）被更换，并且由于所有其他模具部件（2-13）相当耐磨损，其使用寿命将持续很长时间。 结晶器（14）由适合于水冷却的合金钢制成，或由硬质铜即Cu-Cd制成; 的Cu-Cr; 少量添加合金元素的Cu-Ag和Cu-Be，其不影响铜的导热性，反之则增加其硬度。
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