Portable on-site Brinell hardness tester

A Brinell hardness tester, portable technology, applied in the field of on-site detection devices for material hardness, can solve the problems of complex structure, high price, low measurement efficiency, etc., and achieve the effect of simple measurement process, good sealing performance and high measurement efficiency

Inactive Publication Date: 2010-03-03
NANTONG BEST MACHINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its booster device generally uses lever weights, and the structure is relatively complicated. Even if a hydraulic device is used, due to the immaturity of domestic hydraulic sealing, oil leakage is relatively serious.
And the two independent devices need to work separately

Method used

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  • Portable on-site Brinell hardness tester
  • Portable on-site Brinell hardness tester
  • Portable on-site Brinell hardness tester

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0023] A preferred embodiment of the present invention is described in detail with reference to the accompanying drawings as follows:

[0024] See figure 1 , The portable on-site Brinell hardness tester includes a base 3, a hydraulic booster 6, and an indenter 8. The specific feature is that two parallel screw rods 1 are vertically installed on the base 3, and the two A lifting device 2 is installed on the screw rod 1, and the hydraulic boosting device 6 is fixedly installed on the lifting device 2. The hydraulic boosting device 6 has a pressing rod 604, and the lower end of the pressing rod 604 passes A pressure sensor 7 is connected to the indenter 8, a sample chuck 9 is fixed on the base 3 directly below the indenter 8, and a displacement sensor 4 is installed on the hydraulic booster 6, so The outputs of the displacement sensor 4 and the pressure sensor 7 are connected to a display 5.

[0025] See figure 2 The structure of the above-mentioned lifting device is: a handle 11 is...

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Abstract

The invention provides a portable on-site Brinell hardness tester comprising a lifting device (2), a hydraulic augmentor (6), a displacement sensor (4), a pressure sensor (7) and a display (5), wherein the hydraulic augmentor is fixed above the lifting device and moves up and down along with the lifting device; the displacement sensor is arranged above the pressure bar of the augmentor to be usedfor measuring displacement; and the pressure sensor is arranged below the compression bar of the augmentor to be used for measuring pressure. The portable on-site Brinell hardness tester has the characteristics of good hydraulic airtightness, no oil leakage, integration of processing devices and measuring devices, simple measuring process, high measuring efficiency and low price.

Description

Technical field [0001] The invention belongs to an on-site detection device for material hardness, which mainly uses a cemented carbide ball of a certain diameter to press into the surface of a test piece under the action of a certain test force. After a certain period of time, the test force is removed to obtain an indentation. The Brinell hardness value is expressed by the average pressure on the surface of the indentation. It is mainly used for hardness testing of forged steel and cast iron with uneven structure, as well as non-ferrous metals and mild steel, and is mostly used for testing of raw materials and semi-finished products. Background technique [0002] The existing foreign portable Brinell hardness tester is composed of a force applying device and a measuring device. The forcing device is generally through lever weights, and the structure is relatively complicated. Even if the hydraulic device is used, the oil leakage is more serious due to the immature hydraulic se...

Claims

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Application Information

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IPC IPC(8): G01N3/42G01N3/02
Inventor 刘亮翁俊翟宇毅孙春宇邵皓骏孙桂清
Owner NANTONG BEST MACHINE CO LTD
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