Wall member useful in quenching

Patent metadata

Field	Value
Publication number	US-9840747-B2
Application number	US-201314133299-A
Country	US
Kind code	B2
Filing date	Dec 18, 2013
Priority date	Feb 20, 2013
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

In some examples, an apparatus includes a pallet supporting a plurality of workpieces, the pallet including through-holes structured to pass a quenching fluid. In some examples, the apparatus further includes a reservoir of quenching fluid configured to provide the quenching fluid, and a plurality of upturned wall portions extending from the pallet and substantially surrounding the exteriors of the plurality of workpieces. The plurality of upturned wall portions may be located in relative orientation to the plurality of workpieces to regulate heat transfer coefficients of the plurality of workpieces during a quenching operation.

First claim

What is claimed is:

1. An apparatus comprising:
a reservoir of quenching fluid configured to provide the quenching fluid;
a pallet supporting a plurality of workpieces, the pallet including through-holes structured to pass the quenching fluid, wherein the pallet and plurality of workpieces are submerged in the reservoir of quenching fluid; and
a plurality of upturned wall portions extending from the pallet and substantially surrounding the exteriors of the plurality of workpieces, the plurality of upturned wall portions located in relative orientation to the plurality of workpieces to regulate heat transfer coefficients of the plurality of workpieces during a quenching operation.

2. The apparatus of claim 1 , wherein respective upturned wall portions of the plurality of upturned wall portions are each included in a respective wall member of a plurality of wall members.

3. The apparatus of claim 2 , wherein each respective upturned wall portion of the plurality of upturned wall portions defines an annular shape.

4. The apparatus of claim 3 , wherein an overhang extends from at least one respective upturned wall portion of the plurality of upturned wall portions toward at least one of the workpieces.

5. The apparatus of claim 1 , wherein a respective upturned wall portion of the plurality of upturned wall portions is located in relative proximity to a respective workpiece of the plurality of workpieces, and wherein the relative proximity of the respective upturned wall portion and the respective workpiece discourages flow of the quenching fluid proximate to the exterior of the respective workpiece, and wherein the respective workpiece is axisymmetric.

6. The apparatus of claim 1 , wherein at least one wall portion of the plurality of upturned wall portions includes an opening formed therethrough and having a height and width, the opening structured for conveyance of quenching fluid.

7. The apparatus of claim 1 , wherein the through-holes of the pallet are indexed in a predetermined orientation with bores formed in the respective workpieces of the plurality of workpieces.

Assignees

• Rolls Royce Corp

Inventors

• Shen Gangshu
• Cooper Nathan J
• Ottow Nathan Wesley
• Goetz Robert Louis
• Matlik John F

Classifications

• C21D1/18 Primary

  Hardening (C21D1/02 takes precedence); Quenching with or without subsequent tempering (quenching devices C21D1/62) · CPC title

• B29C71/02

  Thermal after-treatment {(B29C71/0063 and B29C71/0072 take precedence)} · CPC title

• C21D1/62

  Quenching devices · CPC title

• C21D1/63

  for bath quenching · CPC title

• C21D1/64

  with circulating liquids · CPC title