Abstract: Aluminum alloys are provided that have improved fluidity and elongation, as well as freedom of die soldering. The aluminum alloys are particularly suitable for die-casting of structural components. The aluminum alloy includes silicon at from about 8 weight % to about 11 weight %, manganese at from about 0.8 weight % to about 1.9 weight %, iron at from about 0.1 weight % to about 0.5 weight %, magnesium at from about 0.2 weight % to about 0.7 weight %, boron at from about 0.002 weight % to about 0.15 weight %, strontium at from about 0.006 weight % to about 0.017 weight %, less than about 0.25 weight % copper, less than about 0.35 weight % zinc, less than about 0.25 weight % titanium, and a balance of aluminum. Methods related to the aluminum alloys are also provided.

Abstract: 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.

Abstract: 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.

Abstract: Aluminum alloys are provided that have improved fluidity and elongation, as well as freedom of die soldering. The aluminum alloys are particularly suitable for die-casting of structural components. The aluminum alloy includes silicon at from about 8 weight % to about 11 weight %, manganese at from about 0.8 weight % to about 1.9 weight %, iron at from about 0.1 weight % to about 0.5 weight %, magnesium at from about 0.2 weight % to about 0.7 weight %, boron at from about 0.002 weight % to about 0.15 weight %, strontium at from about 0.006 weight % to about 0.017 weight %, less than about 0.25 weight % copper, less than about 0.35 weight % zinc, less than about 0.25 weight % titanium, and a balance of aluminum. Methods related to the aluminum alloys are also provided.

Abstract: An apparatus and method for casting metallic components is disclosed. The apparatus has a vertical parting line and a gate configuration which reduces defects within the cast components.

Abstract: An apparatus and method for casting metallic components is disclosed. The apparatus has a vertical parting line and a gate configuration which reduces defects within the cast components.

Abstract: A system for making a gray cast iron scrolls using a high performance inoculant.

Abstract: A system for making a gray cast iron scrolls using a high performance inoculant.

Abstract: A piston and cylinder type thermal device having a resilient stem seat provided with an opening in one end thereof and receiving an actuating stem in the opening that is adapted to reciprocate in the opening in response to the thermal expansion and contraction of a charge of material in the device and operatively acting on the stem seat adjacent the other end thereof. The opening includes one portion thereof adjacent the other end of the stem seat that is substantially smaller in diameter than the diameter of the portion of the stem that is to be received that one portion when the stem seat is in the unassembled condition thereof. The opening further includes another portion thereof adjacent the one end of the stem seat that is substantially smaller in diameter than the diameter of the portion of the stem that is to be received in said other portion when the stem seat is in the unassembled condition thereof.

Abstract: A piston and cylinder type thermal device having a resilient stem seat provided with an opening in one end thereof and receiving an actuating stem in the opening that is adapted to reciprocate in the opening in response to the thermal expansion and contraction of a charge of material in the device and operatively acting on the stem seat adjacent the other end thereof. The opening includes one portion thereof adjacent the other end of the stem seat that is substantially smaller in diameter than the diameter of the portion of the stem that is to be received that one portion when the stem seat is in the unassembled condition thereof. The opening further includes another portion thereof adjacent the one end of the stem seat that is substantially smaller in diameter than the diameter of the portion of the stem that is to be received in said other portion when the stem seat is in the unassembled condition thereof.

Abstract: A push type thermal device having a resilient stem seat provided with an opening in one end thereof and receiving an actuating stem therein that is adapted to reciprocate in a longitudinal direction in the opening in response to the thermal expansion and contraction of a charge of material in the device and only operatively acting on the other end of the stem seat in the aforementioned longitudinal direction, the stem seat having means for substantially preventing wadding of the stem seat during the stroking of the stem by the expansion of the charge of material.

Abstract: A system for making a gray cast iron scrolls using a high performance inoculant.