KR900006572Y1 - A portable brinell for multiobject - Google Patents

Abstract

No content.

Description

Multi Purpose Portable Brinnel Hardness Tester

1 is an external view of the main body and the contrast test piece.

2 is an external view of the test piece inserted into the body.

3 is a cross-sectional view of the hardness test on the object to be measured after inserting the contrast test piece in the main body (Fig. 2).

4 is a circularity of the pressure appearing in the comparative test piece and the measured object after the hardness test.

5 is an external view of a magnification microscope measuring the diameter of the indentation shown in FIG.

6 is an external view of the standard hardness value (brinnel) of the contrast test piece inserted into the main body.

FIG. 7 is an external view of a universal chart that converts the indentation shown in FIG. 4 into a micrograph of FIG.

* Explanation of symbols for main parts of the drawings

1: Contrast specimen holder (4 square) 2: Div test specimen

3,3 ': Rubber for buffer and steel ball holder 4: Contrast test piece spacing device

5: impact head 6: a hammer to hit

7: 10m / m: Steel ball 8: Measured object

9,10: Indentation mark 11: 20 magnification scope (microscope)

12: Standard hardness value of the contrast test piece 13: Hardness conversion chart

The present invention is a design related to a portable Brinell hardness tester. Conventional Brinnell hardness tester is in a stationary form (80-100 ㎏ of hardness) and is limited to a certain place in a laboratory or laboratory. Hardness test was possible. This design is light in weight and can carry out Brinnel hardness test without restriction of product type test location and pressure in large product and construction site directly on the production site besides specified specimens, and at the same time Vickers, Shore, Rockwell, hardness value The conversion chart (CHART) to be understood as described in detail by the accompanying drawings as follows.

The state of inserting ② into the holder ① is the same as the sectional view of FIG. 2 and FIG. The actual hardness test is performed by inserting the surrogate specimen ② into the holder ① of FIG. 2 and striking it with the hammer ⑥ on the impact head ⑤ fixed to the buffer rubber. At the same time, marks ⑨⑩ of steel balls appear at the same time (Fig. 4). Read the size and use the conversion chart shown in Figure 7 to get the results of the hardness test. How to use the conversion chart is as follows. Standard hardness value ⑪ for contrast specimen ② shown in FIG. 6 with the chart rotated to match the numerical value 대한 of indentation ⑨ of indentation ⑨ shown in contrast specimen ② and the indentation 나타난 of indented still life ⑧. Appears in the chart ⑮; At this time, the chart ⑮; The numerical value of brimille hardness value for the subject ⑧. 16 Directors. In addition, the Brinnell hardness value for the target object ⑧ Rockwell "C" value against Shore hardness value Vickers hardness value Strength values for and measured objects Can read up to The present invention configured as described above can be used to change the hardness of any constant value or fastness by using a conversion chart by using a semi-permanently used contrast specimen ②. Therefore, this paper improves the matters that the Brinmill hardness test was impossible to carry and the hardness tester itself could not be carried out except the test specimens, so that the hardness test of construction sites, industrial production sites, and large products can be easily performed. It is characterized by the use of a conversion chart for the relative evaluation of the subject to the specimen.

Claims (1)

The indentation ⑨ and the measured object created by the steel ball ⑦ when the hemmer ⑥ hits the impact head ⑤ while the specimen ② is inserted into the main body ① of FIG. 1 and placed on the measurement object ⑧. The sum of water ⑧ can be read at the same time by measuring the diameter of ⑩ and using the conversion chart shown in FIG. 7 to simultaneously read the Brinnel hardness, the sour hardness, the Rockwell hardness, and the tensile strength of the measured object. Multipurpose portable Brinnell hardness tester characterized by carrying the machine itself.