Method for manufacture of a physical quantity detector
US7708051B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2007 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Mar 15, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D15/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A physical quantity detector, such as a pressure sensor and a load sensor, includes a cylindrical part of which one end is closed with a strain generating part and a sensor part formed on the strain generating part. The cylindrical part is produced by melting an alloying material having a composition capable of yielding an amorphous alloy, injecting the resultant molten alloy into a metal mold, and cooling the molten alloy in the metal mold to confer amorphousness on the alloy. The metal mold includes a split mold having at least two split parts for forming a cavity and an insert pin to be inserted into the cavity so as to define the inner configuration of the cylindrical part, or further an insert core to be inserted into the mold so as to form the surface of the cavity corresponding to the surface of the strain generating part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.