DE304732C - - Google Patents
Info
- Publication number
- DE304732C DE304732C DENDAT304732D DE304732DA DE304732C DE 304732 C DE304732 C DE 304732C DE NDAT304732 D DENDAT304732 D DE NDAT304732D DE 304732D A DE304732D A DE 304732DA DE 304732 C DE304732 C DE 304732C
- Authority
- DE
- Germany
- Prior art keywords
- rod
- ball
- steel ball
- comparison
- hardness
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910000760 Hardened steel Inorganic materials 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
- G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE304732C true DE304732C (OSRAM) |
Family
ID=558311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT304732D Active DE304732C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE304732C (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE897628C (de) * | 1951-07-29 | 1953-11-23 | Rudolf Dr-Ing Boeklen | Schlaghaertepruefer mit Vergleichstab |
-
0
- DE DENDAT304732D patent/DE304732C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE897628C (de) * | 1951-07-29 | 1953-11-23 | Rudolf Dr-Ing Boeklen | Schlaghaertepruefer mit Vergleichstab |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE304732C (OSRAM) | ||
| DE3016483C2 (OSRAM) | ||
| AT74840B (de) | Härteprüfer. | |
| DE1210574B (de) | Feinmessgeraet fuer Innen- und Aussenmessungen | |
| DE235327C (OSRAM) | ||
| DE546130C (de) | Innenmessgeraet | |
| DE564117C (de) | Dauerpruefmaschine fuer Torsions- und Biegebeanspruchung | |
| DE1171350B (de) | Spannzeug | |
| DE960860C (de) | Innengrenzlehre bzw. Lochlehre | |
| DE649851C (de) | Befestigungseinrichtung fuer Stanzstempel im Werkzeughalter | |
| DE484801C (de) | Einspritzduese fuer Verbrennungskraftmaschinen | |
| DE29712452U1 (de) | Gerät zum Prüfen und Messen von Innengewinden | |
| DE172189C (OSRAM) | ||
| DE537828C (de) | Puffer, insbesondere fuer Eisenbahnfahrzeuge | |
| DE264307C (OSRAM) | ||
| DE922492C (de) | Einrichtung zur winkelhaltigen Fuehrung eines Absteckdorns | |
| DE2801000C2 (de) | Meßlehre zum Messen und Überprüfen von Innenbohrungen | |
| DE422675C (de) | Mit Feinzeiger versehenes, insbesondere zum Pruefen der Steigung von Innengewinde bestimmtes Geraet | |
| DE65798C (de) | Höhenmafs | |
| DE389373C (de) | Rachenlehre fuer Aussenmessung von Prismen | |
| DE259160C (OSRAM) | ||
| DE658533C (de) | Feinmessgeraet fuer Innenmessungen | |
| DE297549C (OSRAM) | ||
| DE9002936U1 (de) | Federbelasteter Druckbolzen mit Kraftanzeige | |
| DE283312C (OSRAM) |