GB757578A - Improvements in or relating to machines for measuring the heat hardness of metals - Google Patents
Improvements in or relating to machines for measuring the heat hardness of metalsInfo
- Publication number
- GB757578A GB757578A GB28848/54A GB2884854A GB757578A GB 757578 A GB757578 A GB 757578A GB 28848/54 A GB28848/54 A GB 28848/54A GB 2884854 A GB2884854 A GB 2884854A GB 757578 A GB757578 A GB 757578A
- Authority
- GB
- United Kingdom
- Prior art keywords
- penetrator
- sample
- sleeve
- shaft
- lowered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/54—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/023—Pressure
- G01N2203/0234—Low pressure; Vacuum
Abstract
757,578. Testing heat-hardness of metals. REGIE NATIONALE DES USINES RENAULT. Oct. 6, 1954 [Feb. 16, 1954], No. 28848/54. Class 106 (2). The metal sample 9 to be tested is located on a support 10 which can be lowered and raised into an electric furnace 1 by gearing 12, 13 and which can be rotated by gearing 19, 20 so that a plurality of impressions may be made by the penetrator 18 which is supported on a shaft 17 whose axis is offset from that of the support 10. The furnace comprises resistance heaters 6, metallic and ceramic screens 7 and a surrounding water jacket, conduits 8 and 81 being provided for supplying vacuum or a controlled atmosphere within the furnace 1. The support 10 is formed from an insulating silica tube with metal screens to reduce further the radiation losses. The penetrator supporting shaft 17 is secured to a plate 21 which may be loaded by weights 22, 23, removable by control rods 24, 25. The plate 21 rests in its upper position on a sleeve 26 and the penetrator is lowered on to the sample 9 by downwards movement of the sleeve 26 under the control of an eccentric 27. The downward movement of the sleeve 26 continues beyond the point of penetration of the sample, ball bearings being provided between the sleeve 26 and shaft 17 to permit the sleeve 26 to slide over the shaft and at the same time retain the shaft perpendicular to the sample. Control means are provided for an automatic succession of tests during which the penetrator is raised and lowered and between which the sample is rotated. A signal is given during the period in which the penetrator is in contact with the sample. The penetrator may be a sapphire fixed in a metal mounting.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR757578X | 1954-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB757578A true GB757578A (en) | 1956-09-19 |
Family
ID=9166222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28848/54A Expired GB757578A (en) | 1954-02-16 | 1954-10-06 | Improvements in or relating to machines for measuring the heat hardness of metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB757578A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191424A (en) * | 1961-10-24 | 1965-06-29 | Nippon Rogaku K K | Device for measuring microhardness of materials |
| US3221535A (en) * | 1961-10-24 | 1965-12-07 | Cohen Co Ltd | Mechanism for selectively applying loads of different magnitudes in high temperaturemicro-hardness testing apparatus |
| CN108982268A (en) * | 2018-09-06 | 2018-12-11 | 河钢股份有限公司 | A kind of high-temperature hardness gauge that can carry out continuous alternating temperature multi-point sampler |
-
1954
- 1954-10-06 GB GB28848/54A patent/GB757578A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191424A (en) * | 1961-10-24 | 1965-06-29 | Nippon Rogaku K K | Device for measuring microhardness of materials |
| US3221535A (en) * | 1961-10-24 | 1965-12-07 | Cohen Co Ltd | Mechanism for selectively applying loads of different magnitudes in high temperaturemicro-hardness testing apparatus |
| CN108982268A (en) * | 2018-09-06 | 2018-12-11 | 河钢股份有限公司 | A kind of high-temperature hardness gauge that can carry out continuous alternating temperature multi-point sampler |
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