Simplified and improved thermal efficiency vaccum furnace hot zone with prefabricated insulation assembly
US10591214B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2017 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | May 29, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2009/0075
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A high temperature vacuum furnace including a prefabricated tongue-and-groove, low-mass insulation ring assembly hot zone, resulting in decreased energy costs and increased energy efficiency, faster heating and cooling cycles, and expedited maintenance capability resulting in lower maintenance costs. Decreased time of a workpiece in the furnace improves production turnaround and lowers energy costs for each heat treating cycle. Furnace manufacturing is also easier and less expensive compared to prior art vacuum furnaces. A bottom support structure replaces the prior art metal support ring resulting in an approximately 80-85% weight saving in the furnace hot zone. This reduces the time and energy required to heat and cool the furnace components and workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.