公开(公告)号：US4945973A

公开(公告)日：1990-08-07

申请号：US270605

申请日：1988-11-14

Applicant: Sankaranarayanan Ashok ,  W. Gary Watson ,  Harvey P. Cheskis

Inventor： Sankaranarayanan Ashok ,  W. Gary Watson ,  Harvey P. Cheskis

IPC: B22D11/06 ,  B22D23/00 ,  B22F3/115 ,  C23C4/12

CPC classification number: B22F3/115 ,  B22D11/0654 ,  B22D23/003 ,  C23C4/123

Abstract: A molten metal gas-atomizing spray-depositing apparatus has an atomizer which employs a pressurized gas flow for atomizing a stream of molten metal into a spray pattern of semi-solid metal particles and producing a flow of the particles along with the gas flow in a generally downward direction. The apparatus also has a substrate disposed below the atomizer for impingement on the substrate of the gas flow at a steady state temperature resulting from heat transfer by the metal particles to the gas flow and for receiving a deposit of the particles in the spray pattern to form a product thereon. The substrate is composed of a material having a thermal conductivity primarily correlated with the steady state temperature of the gas flow so as to limit heat transfer from the deposit to the substrate and provide a sufficient fraction of liquid in the initial deposit to feed the interstices between the particles and provide an interface for subsequent deposits, resulting in a reduction of porosity and improvements of flatness of the deposit.

Abstract translation: 熔融金属气体雾化喷雾沉积设备具有雾化器，其使用加压气流将熔融金属流雾化成半固体金属颗粒的喷射图案，并产生颗粒流与气流一起流入 一般向下方向。 该设备还具有设置在雾化器下方的基板，用于在由金属颗粒传导到气流并且以喷射模式接收颗粒沉积的稳定状态温度下冲击在气体基板上的基板，以形成 其上的产品。 衬底由具有主要与气流的稳态温度相关的热导率的材料组成，以便限制从沉积物到衬底的热传递，并在初始沉积物中提供充分的液体部分以在第 颗粒并提供用于随后沉积物的界面，导致孔隙率的降低和沉积物的平坦度的改善。

公开(公告)号：US4901784A

公开(公告)日：1990-02-20

申请号：US330049

申请日：1989-03-29

Applicant: Sankaranarayanan Ashok ,  Harvey P. Cheskis

Inventor： Sankaranarayanan Ashok ,  Harvey P. Cheskis

IPC: B05B5/00 ,  B05B7/16 ,  B22D23/00 ,  B22F3/115 ,  B22F9/08

CPC classification number: B22F9/082 ,  B05B5/00 ,  B05B7/1606 ,  B22D23/003 ,  B22F3/115 ,  B22F9/08 ,  B22F2009/0808 ,  B22F2009/088 ,  B22F2009/0892 ,  B22F2998/00 ,  B22F2999/00

Abstract: A gas-atomizing system for spray casting a spray of molten metal on a moving substrate in which the gas atomizing device is in the form of an annulus having a central opening therethrough through which the molten metal to be atomized flows. The annulus is provided with a plenum chamber which communicates with elongated openings on the bottom surface of the annulus. The manifold and outlets are so arranged that a divergent conical spray pattern is produced having a central axis inclined with respect to the vertical axis of the molten metal stream in a direction downstream of the moving substrate upon which the spray material is deposited.

Abstract translation: 一种用于在移动基板上喷射熔融金属喷雾的气体雾化系统，其中气体雾化装置是具有中心开口的环形的形式，待雾化的熔融金属通过该中心开口流过。 环带设置有与环形物的底表面上的细长开口连通的增压室。 歧管和出口被布置成使得产生具有相对于熔融金属流的垂直轴线倾斜的中心轴线的发散锥形喷射图案，该中心轴线沿着移动基板的下游方向沉积喷涂材料。

公开(公告)号：US4642146A

公开(公告)日：1987-02-10

申请号：US786564

申请日：1985-10-11

Applicant: Sankaranarayanan Ashok ,  John F. Breedis

Inventor： Sankaranarayanan Ashok ,  John F. Breedis

IPC: C22C9/01 ,  C22C9/06

CPC classification number: C22C9/01 ,  C22C9/06

Abstract: A copper base alloy capable of forming a microstructure comprising a plurality of discrete particles in a surrounding metal matrix having a lower melting point than the particles. The alloy consists essentially of from about 3% to about 6% nickel, from about 2% to about 4.25% aluminum, from about 0.25% to about 1.2% silicon, from about 5% to about 15% zinc, up to about 5% iron and the balance essentially copper. When iron is included in an amount from about 3% to about 5% and zinc is restricted to a range of from about 8% to about 10%, the alloy is capable of forming the desired structure in the as-cast condition using a process which does not include stirring during casting.

Abstract translation: 一种能够形成微结构的铜基合金，该组织在周围金属基体中具有比颗粒低的熔点的多个离散粒子。 合金基本上由约3％至约6％的镍，约2％至约4.25％的铝，约0.25％至约1.2％的硅，约5％至约15％的锌，至多约5％ 铁和平衡基本上是铜。 当铁以约3％至约5％的量包含并且锌被限制在约8％至约10％的范围内时，该合金能够在铸态条件下使用方法形成所需结构 其不包括铸造期间的搅拌。

公开(公告)号：US4555272A

公开(公告)日：1985-11-26

申请号：US598960

申请日：1984-04-11

Applicant: Sankaranarayanan Ashok ,  John F. Breedis

Inventor： Sankaranarayanan Ashok ,  John F. Breedis

IPC: C22C1/00 ,  C22F1/08

CPC classification number: C22C1/005 ,  F42B5/28

Abstract: A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about 10.5% by weight aluminum, at least about 10% by weight nickel and the balance essentially copper. In accordance with an alternative embodiment the nickel can be replaced on a one for one basis by iron within certain limits. The alloys are processed by chill casting with a cooling rate throughout the section of the casting comprising at least about 10.degree. C./sec. The alloys as-cast or when reheated to a semi-solid exhibit a microstructure suitable for press forging.