GB376726A - Improvements to machines for testing metals by shock - Google Patents
Improvements to machines for testing metals by shockInfo
- Publication number
- GB376726A GB376726A GB941/31A GB94131A GB376726A GB 376726 A GB376726 A GB 376726A GB 941/31 A GB941/31 A GB 941/31A GB 94131 A GB94131 A GB 94131A GB 376726 A GB376726 A GB 376726A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pendulum
- specimen
- shaft
- rods
- pawls
- 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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
-
- 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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)
Abstract
376,726. Testing physical qualities of materials. PLANA, A., 2, Fabrica de Altos Hornos y Henao, Bilbao, Spain. Jan. 10, 1931, No. 941. Convention date, Jan. 21, 1930. Void [Published under Sect. 91 of the Acts]. [Class 106 (ii).] In a machine of the pendulum type for testing metals by shock, the pendulum is raised by lever operated pawls engaging toothed wheels on the shaft of the pendulum. The pendulum comprises a frame 1 and hammer 2 fixed to a shaft 3 mounted in bearings on uprights 6 rising from a bed 5. Bearings 7 are provided for the test piece. A dial 8 graduated on both sides of a zero is connected to one upright. Two pointers 9, 10 are provided of which the latter may be clamped to the shaft 3 while the pointer 9 is held frictionally. Two toothed wheels 12 fixed on the shaft 3 are engaged by pawls 13 pivoting on a shaft 14 carried by rods 20<1> pivotally mounted on the shaft 3 and pivotally connected to links 28 pivoted to discs 27 driven by worm and belt gear from an electric motor. For a single fall, the lever 15 is rocked by hand and through links 17 rocks a releaser engaging under the levers 20 which turn on the axis 14 and disengage the pawls. For repeated blows, the motor is used, and as the discs 27 turn the rods 28 lift the levers 20, 20<1> the pawls sliding over the teeth. Upon reversal, the pawls engage the wheels 12 and lift the pendulum. On downward movement of rods 28, the levers 20 contact with screws. 30 and the pendulum is released. The eccentricity of the axis 29 can be varied by moving the slides 33 by means of their adjusting screws 34. The screws 30 may be screwed more or less into the nut 31 to alter the time of fall. The position of the axis 14<1> may be varied by turning the screw 35. In use, the pendulum is raised to a given angle, and released by hand the angle reached on the right-hand of the dial after the specimen is broken being read, and the energy expended being calculated from tables according to the various adjustments made. To test the limit of elasticity, the bar is placed and centred in the bearings 7 and rods 6, Fig. 5, screwed in until they connect with the ends of the bar. The rests are able to turn about their axes 8. A mirror 9 is clamped to the bar and inclined so that as division on a scale 37 is seen in the telescope 36. The fall of the pendulum is progressively increased and the division coinciding with the mirror read before and after the fall until a permanent deformation is obtained. For fatigue upon bending, repeated blows are given the number being registered on a counter 43. To test tensile strength by shock, the test bar is cylindrical and one end is secured to a crosshead 2, Fig. 6, and the other to the hammer of the pendulum. In the place where the specimen is usually secured, two anvils 4 are secured by bolts 5. On the fall of the pendulum, the crosshead is arrested by the anvil at the plumb line of the pendulum and the specimen is under tension. Rods 9, 10 connected to each end of the specimen are connected by a crosspiece 12 to which a mirror is secured. Means are provided to prevent damage to the mirror in breakage of the specimen. For fatigue tests, the specimen is placed under repeated blows and is secured at the ends so that even with deformation, the crosshead hits the anvils squarely and when the pendulum is at the plumb line. For testing by inverted flexure, the specimen is so held that it may be automatically rotated through 180‹ about its axis between the blows.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES376726X | 1930-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB376726A true GB376726A (en) | 1932-07-14 |
Family
ID=8245228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB941/31A Expired GB376726A (en) | 1930-01-21 | 1931-01-10 | Improvements to machines for testing metals by shock |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB376726A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3157046A (en) * | 1961-06-30 | 1964-11-17 | Mfg Lab Inc | Impact test machine |
DE4025135C1 (en) * | 1990-08-08 | 1992-01-02 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | Pendulum striker mechanism for high difference measurement - has pulling device rigidly connected to pendulum hub, driven by pendulum and connected to drop height measurer |
US7516646B2 (en) | 2007-01-31 | 2009-04-14 | Honda Motor Co., Ltd. | Impact test apparatus |
DE102010037979A1 (en) | 2010-10-05 | 2012-04-05 | Zwick Gmbh & Co. Kg | Pendulum ram impact testing machine for testing properties of material, has active mass portion which is defined with initial energy in accelerated movement along arc shaped path of inspection location for retaining sample of material |
CN102792144A (en) * | 2009-12-23 | 2012-11-21 | 振动专家技术中心责任有限公司 | Vibration test apparatus |
EP2549262B1 (en) * | 2011-07-22 | 2016-01-06 | Vibram S.p.A. | Machine to perform tests on materials |
DE102015122419B3 (en) * | 2015-12-21 | 2017-03-23 | Zwick Gmbh & Co. Kg | Impact block of a pendulum impact tester with advantageous bearing piece |
DE102015122414B3 (en) * | 2015-12-21 | 2017-03-23 | Zwick Gmbh & Co. Kg | Bearing piece for an abutment of a pendulum impact tester |
CN108132195A (en) * | 2018-01-30 | 2018-06-08 | 湖南农业大学 | The ramie stem harvesting Experiment of Tool Wear platform of variable holding state |
CN108362595A (en) * | 2018-01-30 | 2018-08-03 | 湖南农业大学 | Ramie stem gathers in Experiment of Tool Wear platform |
CN114152528A (en) * | 2021-11-30 | 2022-03-08 | 安徽理工大学 | Flexible fire resistance detection device for fireproof coiled material and detection method thereof |
CN114166667A (en) * | 2021-11-19 | 2022-03-11 | 广东石油化工学院 | Multidirectional physical impact test equipment for testing fatigue of metal material |
CN114227956A (en) * | 2021-12-09 | 2022-03-25 | 潘珍珍 | High-efficient lobe of a leaf device of splitting of silicon chip |
CN114739839A (en) * | 2022-06-09 | 2022-07-12 | 深圳市骏鼎达新材料股份有限公司 | Test equipment for impact test and use method thereof |
-
1931
- 1931-01-10 GB GB941/31A patent/GB376726A/en not_active Expired
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3157046A (en) * | 1961-06-30 | 1964-11-17 | Mfg Lab Inc | Impact test machine |
DE4025135C1 (en) * | 1990-08-08 | 1992-01-02 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | Pendulum striker mechanism for high difference measurement - has pulling device rigidly connected to pendulum hub, driven by pendulum and connected to drop height measurer |
US7516646B2 (en) | 2007-01-31 | 2009-04-14 | Honda Motor Co., Ltd. | Impact test apparatus |
CN102792144A (en) * | 2009-12-23 | 2012-11-21 | 振动专家技术中心责任有限公司 | Vibration test apparatus |
DE102010037979A1 (en) | 2010-10-05 | 2012-04-05 | Zwick Gmbh & Co. Kg | Pendulum ram impact testing machine for testing properties of material, has active mass portion which is defined with initial energy in accelerated movement along arc shaped path of inspection location for retaining sample of material |
EP2549262B1 (en) * | 2011-07-22 | 2016-01-06 | Vibram S.p.A. | Machine to perform tests on materials |
DE102015122419B3 (en) * | 2015-12-21 | 2017-03-23 | Zwick Gmbh & Co. Kg | Impact block of a pendulum impact tester with advantageous bearing piece |
DE102015122414B3 (en) * | 2015-12-21 | 2017-03-23 | Zwick Gmbh & Co. Kg | Bearing piece for an abutment of a pendulum impact tester |
EP3184986A1 (en) | 2015-12-21 | 2017-06-28 | Zwick GmbH&Co. Kg | Charpy pendulum impact test |
EP3184987A1 (en) | 2015-12-21 | 2017-06-28 | Zwick GmbH&Co. Kg | Bearing support for a thrust bearing of a pendulum striking mechanism |
CN108132195A (en) * | 2018-01-30 | 2018-06-08 | 湖南农业大学 | The ramie stem harvesting Experiment of Tool Wear platform of variable holding state |
CN108362595A (en) * | 2018-01-30 | 2018-08-03 | 湖南农业大学 | Ramie stem gathers in Experiment of Tool Wear platform |
CN108362595B (en) * | 2018-01-30 | 2024-03-29 | 湖南农业大学 | Ramie stem harvesting cutter abrasion test stand |
CN108132195B (en) * | 2018-01-30 | 2024-03-29 | 湖南农业大学 | Ramie stem harvesting cutter abrasion test stand with changeable supporting state |
CN114166667A (en) * | 2021-11-19 | 2022-03-11 | 广东石油化工学院 | Multidirectional physical impact test equipment for testing fatigue of metal material |
CN114166667B (en) * | 2021-11-19 | 2023-09-29 | 广东石油化工学院 | Multidirectional physical impact test equipment for testing fatigue degree of metal material |
CN114152528A (en) * | 2021-11-30 | 2022-03-08 | 安徽理工大学 | Flexible fire resistance detection device for fireproof coiled material and detection method thereof |
CN114227956A (en) * | 2021-12-09 | 2022-03-25 | 潘珍珍 | High-efficient lobe of a leaf device of splitting of silicon chip |
CN114227956B (en) * | 2021-12-09 | 2024-04-19 | 潘珍珍 | High-efficient lobe of a leaf device of silicon chip |
CN114739839A (en) * | 2022-06-09 | 2022-07-12 | 深圳市骏鼎达新材料股份有限公司 | Test equipment for impact test and use method thereof |
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