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1. 发明申请

WO2003068432A1 PRESSURE CASTING FLOW SYSTEM 审中-公开
标题翻译：压力铸造系统
公开(公告)号：WO2003068432A1
公开(公告)日：2003-08-21
申请号：PCT/AU2003/000195
申请日：2003-02-14
申请人： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION , MURRAY, Morris, Taylor , COPE, Matthew, Alan , ROHAN, Patrick, William , QUADLING, Alan, Michael
发明人： MURRAY, Morris, Taylor , COPE, Matthew, Alan , ROHAN, Patrick, William , QUADLING, Alan, Michael
IPC分类号： B22D35/04
CPC分类号： B22D17/2272 , B22D17/007 , Y10S164/90
摘要： A metal flow system, for high pressure die casting of alloys using a machine having a pressurised source of molten alloy and a mould defining at least one die cavity, defines a metal flow path by which alloy received from the pressurised source is able to flow into the die cavity. A first part of the length of the flow path includes a runner and a controlled expansion port (CEP) which increases in cross-sectional area, in the direction of alloy flow, from an inlet end of the CEP at an outlet end of the runner to an outlet end of the CEP. A CEP exit module (CEM) forms a second part of the length of the flow path from the outlet end of the CEP. The increase in cross-sectional area of the CEP is such that molten alloy, received at the CEP inlet end at a sufficient flow velocity, undergoes a reduction in flow velocity in its flow through the CEP whereby the alloy is caused to change from a molten state to a semi-solid state. The CEM has a form which controls the alloy flow whereby the alloy flow velocity decreases progressively from the level at the outlet end of the CEP whereby, at the location at which the flow path communicates with the die cavity, the alloy flow velocity is at a level significantly below the level at the outlet end of the CEP. The change in state generated in the CEP is able to be maintained substantially throughout filling of the die cavity and such that the alloy is able to undergo rapid solidification in the die cavity and back along the flow path towards the CEP.
摘要翻译：用于使用具有加压熔融合金源的机器和限定至少一个模腔的模具的合金的高压压铸的金属流动系统限定了从加压源接收的合金能够流入的金属流动路径模腔。流路长度的第一部分包括流道和受控膨胀口（CEP），该流道和受控膨胀口（CEP）在合金流动方向上从CEP出口端处的CEP入口端的横截面面积增大到CEP的出口端。 CEP出口模块（CEM）从CEP的出口端形成流路长度的第二部分。 CEP的横截面积的增加使得在CEP入口端处以足够的流速接收的熔融合金在其通过CEP的流动中经历了流速的降低，从而使合金从熔融的状态为半固态。 CEM具有控制合金流动的形式，由此合金流速从CEP出口端处的水平逐渐降低，由此在流路与模腔连通的位置处，合金流速为水平显着低于CEP出口端的水平。在CEP中产生的状态变化能够在模腔的整个填充期间基本保持，并且使得该合金能够在模腔中快速凝固并且沿着流向CEP回流。

2. 发明申请

WO2003018235A1 METAL FLOW SYSTEM 审中-公开
标题翻译：金属流动系统
公开(公告)号：WO2003018235A1
公开(公告)日：2003-03-06
申请号：PCT/AU2002/001139
申请日：2002-08-23
申请人： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION , ROHAN, Patrick, William , MURRAY, Morris, Taylor , COPE, Matthew, Alan , QUADLING, Alan, Michael
发明人： ROHAN, Patrick, William , MURRAY, Morris, Taylor , COPE, Matthew, Alan , QUADLING, Alan, Michael
IPC分类号： B22D17/20
CPC分类号： B22D17/2015 , B22D17/007 , B22D17/2272
摘要： A metal flow system is provided for use in pressure casting of an alloy, using a pressure casting machine having a source of supply of molten alloy. The system includes a mould or die tool component which defines at least part of a flow path into which molten alloy is receivable from the source of supply and along which alloy is able to flow for injection into a die cavity defined by a mould or die. The mould or die tool component defines, as part of the flow path, a controlled expansion port (a CEP) which, from an inlet end to an outlet end of the CEP, increases in cross-sectional area whereby the state of alloy in its flow through the CEP is able to be modified from a molten state to achieve a semi-solid state possessing thixotropic properties and to enable the alloy in that state to flow into the die cavity. The CEP has a form such that, with solidification of alloy in the die cavity and back along the flow path into the CEP, to provide a resultant casting having a microstructure characterised by fine, degenerate dendrite, or spheroidal or rounded, primary particles in a matrix of secondary phase, alloy solidified in the CEP has microstructure characterised by striations or bands extending transversely with respect to the alloy flow therethrough, with the bands resulting from alloy element separation, and with alternate bands relatively richer in respective elements and respectively in primary and secondary phases.
摘要翻译：使用具有熔融合金供应源的压力铸造机提供用于合金压铸的金属流动系统。该系统包括模具或模具组件，其限定熔融合金可从供应源接收到的流路的至少一部分，并且合金能够通过该流动路径流动以注入由模具或模具限定的模腔中。模具或模具组件作为流动路径的一部分限定了受控膨胀口（CEP），其从CEP的入口端到出口端的横截面面积增加，由此合金在其中的状态通过CEP的流动能够从熔融状态改变以实现具有触变特性的半固体状态，并使得在该状态下的合金能够流入模腔。 CEP具有这样的形式，使得通过在模腔中的合金凝固并且沿着流动路径回到CEP中，以提供具有微结构的铸造，其具有微观结构，其特征在于细小的，简并的枝晶，或球形或圆形的初级粒子二次相基体，在CEP中固化的合金具有特征在于相对于合金流动通过其横向延伸的条纹或带的微结构，其中由合金元素分离产生的条带，并且交替条带相应地在相应元件中更加丰富，并且分别在初级和次要阶段。

3. 发明申请

WO2003018233A1 PROCESS AND APPARATUS FOR PRODUCING SHAPED METAL PARTS 审中-公开
标题翻译：用于生产形状金属零件的工艺和装置
公开(公告)号：WO2003018233A1
公开(公告)日：2003-03-06
申请号：PCT/AU2002/001137
申请日：2002-08-23
申请人： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION , ROHAN, Patrick, William , MURRAY, Morris, Taylor , COPE, Matthew, Alan , QUADLING, Alan, Michael
发明人： ROHAN, Patrick, William , MURRAY, Morris, Taylor , COPE, Matthew, Alan , QUADLING, Alan, Michael
IPC分类号： B22D17/20
CPC分类号： B22D17/007
摘要： A process for injection moulding of articles from an alloy able to form a dendritic primary phase includes providing at a nozzle a quantity of the alloy which is at least predominantly in a liquid state. The alloy is moved along a flow path from the nozzle to a die cavity defined by a mould whereby the alloy is caused to flow along the flow path as a stream of alloy. The alloy is controlled as it is moved along the flow path to increase the stream in transverse cross-sectional area along flow of the alloy between an inlet end and an outlet end of at least a part of the length of the flow path. This increase reduces the flow velocity of the alloy sufficiently in its flow through said part, from a sufficient flow velocity at the inlet end, whereby the alloy is caused to change from said at least predominantly liquid state to a semi-solid state. The die cavity is able to be filled with the alloy in the semi-solid state.
摘要翻译：用于从能够形成树枝状主相的合金注塑成型制品的方法包括在喷嘴处提供至少主要处于液态的合金量。合金沿着从喷嘴到由模具限定的模腔的流动路径移动，由此使合金作为合金流沿着流动路径流动。当合金被沿着流动路径移动时被控制，以在沿着流动路径的至少一部分长度的入口端和出口端之间的合金流动的横截面积中增加流动。这种增加可以从入口端的足够的流速在足够的流动通过所述部件减小合金的流速，从而使合金从所述至少主要是液态的状态变为半固态。模腔能够以半固态填充合金。

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