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公开(公告)号：US08662144B2
公开(公告)日：2014-03-04
申请号：US13633262
申请日：2012-10-02
CPC分类号： B22D25/02
摘要： Methods of casting improved scroll compressor components having high quality involute portions are provided. The casting method comprises gating molten metal through a patterned region of a core or mold defining the involute vanes. In certain aspects, during casting, molten metal passes through one or more gates that extend through a core in a central patterned region that forms the involute portion of the scroll component. In certain variations, the metal comprises a gray cast iron, so the cast part comprises an involute having a matrix of pearlite and Type A graphite that is substantially free of undercooling defects. Further, in certain variations, the involute portion is substantially free of Types B-E graphite. Thus, high-quality low-defect cast scroll components are formed having good machinability and superior fatigue strength.
摘要翻译： 提供了具有高品质渐开线部分的改进的涡旋压缩机部件的方法。 铸造方法包括通过限定渐开线叶片的芯或模具的图案化区域浇注熔融金属。 在某些方面，在铸造期间，熔融金属穿过一个或多个延伸穿过形成涡卷部件的渐开线部分的中心图案化区域中的芯的浇口。 在某些变型中，金属包括灰铸铁，因此铸造件包括具有基本上没有过冷缺陷的珠光体和A型石墨基体的渐开线。 此外，在某些变型中，渐开线部分基本上不含B-E型石墨。 因此，形成具有良好的机加工性和优异的疲劳强度的高品质低缺陷铸造涡旋件。
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公开(公告)号：US20130087299A1
公开(公告)日：2013-04-11
申请号：US13633262
申请日：2012-10-02
IPC分类号： B22D25/02
CPC分类号： B22D25/02
摘要： Methods of casting improved scroll compressor components having high quality involute portions are provided. The casting method comprises gating molten metal through a patterned region of a core or mold defining the involute vanes. In certain aspects, during casting, molten metal passes through one or more gates that extend through a core in a central patterned region that forms the involute portion of the scroll component. In certain variations, the metal comprises a gray cast iron, so the cast part comprises an involute having a matrix of pearlite and Type A graphite that is substantially free of undercooling defects. Further, in certain variations, the involute portion is substantially free of Types B-E graphite. Thus, high-quality low-defect cast scroll components are formed having good machinability and superior fatigue strength.
摘要翻译： 提供了具有高品质渐开线部分的改进的涡旋压缩机部件的方法。 铸造方法包括通过限定渐开线叶片的芯或模具的图案化区域浇注熔融金属。 在某些方面，在铸造期间，熔融金属穿过一个或多个延伸穿过形成涡卷部件的渐开线部分的中心图案化区域中的芯的浇口。 在某些变型中，金属包括灰铸铁，因此铸造件包括具有基本上没有过冷缺陷的珠光体和A型石墨基体的渐开线。 此外，在某些变型中，渐开线部分基本上不含B-E型石墨。 因此，形成具有良好的机加工性和优异的疲劳强度的高品质低缺陷铸造涡旋件。
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公开(公告)号：US5911267A
公开(公告)日：1999-06-15
申请号：US747876
申请日：1996-11-13
摘要： A cope for a core box has a passage for passing sand into a core box cavity and a bore for passing catalyst into the core box cavity to harden a sand core formed therein. The bore may extend from an exterior surface of the cope to the cope passage. The cope may have structure for forming a seal with a sand injection tube following sand injection, such as a blow-up seal or an O-ring. A method of producing cores in a core box includes the step of providing a cope, a drag, and a cavity formed therebetween, the cope having a passage for receiving an injection tube and a bore for passing catalyst. Further steps include using the injection tube to inject sand through the cope passage into the cavity and passing catalyst through the bore in the cope into the cavity. A seal may be formed between the cope and the injection tube after sand injection.
摘要翻译： 用于核心箱的副箱具有用于将砂通过芯盒空腔的通道和用于使催化剂通入芯箱腔中的孔，以使形成在其中的砂芯硬化。 孔可以从上敷层的外表面延伸到上模通道。 上料可以具有用于在喷砂之后用喷砂管形成密封的结构，例如吹胀密封或O形环。 在芯盒中制造芯的方法包括提供在其间形成的上罩，拖曳和空腔的步骤，所述上罩具有用于接收注射管的通道和用于使催化剂通过的孔。 进一步的步骤包括使用注射管将砂通过上下通道注入空腔中并将催化剂通过上盖中的孔传入空腔。 注砂后，可以在上模和注射管之间形成密封。
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公开(公告)号：US5787957A
公开(公告)日：1998-08-04
申请号：US671847
申请日：1996-06-28
CPC分类号： B22C9/123 , B22C15/245
摘要： The injection tube for injecting and gassing of foundry sand in cavities in a core box has a first passage for passing sand and a second passage for passing hardening fluid. Sand may be injected simultaneously to the introduction of hardening fluid into the cavities. Alternatively, sand may be injected prior to introduction of hardening fluid into the cavities.
摘要翻译： 用于在芯盒中的空腔中注入和放气铸造砂的注射管具有用于通过砂的第一通道和用于通过硬化流体的第二通道。 砂可以同时注入以将硬化流体引入空腔中。 或者，在将硬化流体引入空腔之前可以注入砂。
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