JPS6435240A - Method and apparatus for indentation hardness testing - Google Patents
Method and apparatus for indentation hardness testingInfo
- Publication number
- JPS6435240A JPS6435240A JP19164887A JP19164887A JPS6435240A JP S6435240 A JPS6435240 A JP S6435240A JP 19164887 A JP19164887 A JP 19164887A JP 19164887 A JP19164887 A JP 19164887A JP S6435240 A JPS6435240 A JP S6435240A
- Authority
- JP
- Japan
- Prior art keywords
- load
- indentor
- sample
- displacement
- 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.)
- Granted
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
PURPOSE:To measure the hardness of a sample handily and accurately, by computing the hardness thereof based on loads at desired two measuring points to be applied on an indentor and a corresponding displacement of the indentor. CONSTITUTION:A load applicator 1 increases or decreases a load depending on the direction of current which is supplied to a solenoid 3 from a load current feeder 13 to be applied to a sample 6 through an indentor 8. A load generated with the load applicator 1 and a displacement of the surface of the sample 6 detected with displacement detectors 9 are inputted into a CPU 15 through a load current feeder 13 and an A/D converter 12. The CPU 15 computes a hardness H of the sample 6 by performing computation by the formula based on loads P1 and P2 at desired two measuring points to be applies to the indentor 8 and detection displacements D1 and D2 of displacement detectors 9 corresponding thereto.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191648A JPH0797072B2 (en) | 1987-07-30 | 1987-07-30 | Indentation hardness test method and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191648A JPH0797072B2 (en) | 1987-07-30 | 1987-07-30 | Indentation hardness test method and device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24536696A Division JPH09126974A (en) | 1996-09-17 | 1996-09-17 | Method and device for testing push-in hardness |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435240A true JPS6435240A (en) | 1989-02-06 |
JPH0797072B2 JPH0797072B2 (en) | 1995-10-18 |
Family
ID=16278154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62191648A Expired - Lifetime JPH0797072B2 (en) | 1987-07-30 | 1987-07-30 | Indentation hardness test method and device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0797072B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08233713A (en) * | 1996-03-25 | 1996-09-13 | Shimadzu Corp | Method for indentation hardness testing |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53149378A (en) * | 1977-06-02 | 1978-12-26 | Nissan Motor | Hardness testing method and hardness testing apparatus |
-
1987
- 1987-07-30 JP JP62191648A patent/JPH0797072B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53149378A (en) * | 1977-06-02 | 1978-12-26 | Nissan Motor | Hardness testing method and hardness testing apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08233713A (en) * | 1996-03-25 | 1996-09-13 | Shimadzu Corp | Method for indentation hardness testing |
Also Published As
Publication number | Publication date |
---|---|
JPH0797072B2 (en) | 1995-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071018 Year of fee payment: 12 |