公开(公告)号：US12296380B2

公开(公告)日：2025-05-13

申请号：US18167688

申请日：2023-02-10

Applicant: Caterpillar Inc.

Inventor： Allan John Woldow ,  James Oliver Barlow ,  Timothy Michael Waters ,  Thomas John Yaniak

IPC: B22D13/04 ,  C22C19/00 ,  C22C19/05 ,  C22C19/07 ,  F16J15/3284

Abstract: A nickel-based alloy for forming a seal ring is disclosed. Such seal rings, in use may be static or rotating and may be used in a variety of applications, such as in wheel assemblies of machines. Using the alloy, the seal ring may be manufactured using a centrifugal casting method. The disclosed alloy includes a chromium content greater than at least 13.5% by weight, a boron content less than 3% by weight, a carbon content less than 2% by weight, and nickel content greater than 70% by weight. The nickel alloy may have a carbon plus boron atomic content divided by chromium atomic content less than 1.1. This alloy allows for the rapid cooling of centrifugal casting while maintaining a grain morphology suitable for relatively low leakage and relatively high durability. When the alloy is formulated, the seal ring is formed by centrifugal casting.

公开(公告)号：US20240269735A1

公开(公告)日：2024-08-15

申请号：US18167688

申请日：2023-02-10

Applicant: Caterpillar Inc.

Inventor： Allan John Woldow ,  James Oliver Barlow ,  Timothy Michael Waters ,  Thomas John Yaniak

IPC: B22D13/04 ,  C22C19/00 ,  C22C19/05 ,  F16J15/3284

CPC classification number: B22D13/04 ,  C22C19/007 ,  C22C19/058 ,  F16J15/3284 ,  C09K2200/0213

Abstract: A nickel-based alloy for forming a seal ring is disclosed. Such seal rings, in use may be static or rotating and may be used in a variety of applications, such as in wheel assemblies of machines. Using the alloy, the seal ring may be manufactured using a centrifugal casting method. The disclosed alloy includes a chromium content greater than at least 13.5% by weight, a boron content less than 3% by weight, a carbon content less than 2% by weight, and nickel content greater than 70% by weight. The nickel alloy may have a carbon plus boron atomic content divided by chromium atomic content less than 1.1. This alloy allows for the rapid cooling of centrifugal casting while maintaining a grain morphology suitable for relatively low leakage and relatively high durability. When the alloy is formulated, the seal ring is formed by centrifugal casting.