CN214426598U

CN214426598U - Thickness measuring instrument for thermal load test detection sample

Info

Publication number: CN214426598U
Application number: CN202121017718.3U
Authority: CN
Inventors: 左海燕; 李雪松; 王新德
Original assignee: ZIBO NEW MATERIALS RESEARCH INSTITUTE
Current assignee: ZIBO NEW MATERIALS RESEARCH INSTITUTE
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-10-19
Anticipated expiration: 2031-05-12

Abstract

The utility model belongs to the technical field of test tools, in particular to a thermal load test detection sample thickness gauge, which comprises a cylinder body, a measuring scale and a top cover, wherein the top of the cylinder body is provided with an opening, and the side wall of the cylinder body is provided with a strip-shaped hollow groove; the measuring scale consists of a measuring plate and a measuring rod, the measuring plate is matched with the inner diameter of the cylinder, and the measuring plate is connected with one end of the measuring rod; the top cover can be buckled at the opening at the top of the barrel body, and a circular through hole is formed in the top cover. Experimental sample thickness gauge that detects of hot load, simple structure, reasonable in design, convenient to use is swift, saves the experimentation time, the reading is stable accurate to the accuracy of better assurance test result.

Description

Thickness measuring instrument for thermal load test detection sample

Technical Field

The utility model relates to a hot load test sample thickness gauge belongs to experimental apparatus technical field.

Background

The thermal load shrinkage temperature is the temperature corresponding to 10% of thickness shrinkage when heated under a certain load, and at the temperature, the size, the mechanical property and the thermal property of the material do not change beyond the allowable range, namely the highest temperature for normal use can be ensured. The sample was heated at a constant temperature rise rate under a constant load to a predetermined thickness shrinkage ratio, and the thermal load shrinkage temperature was calculated and interpolated.

The inside temperature of experimental furnace body is high, has the potential safety hazard, and displacement metering device linear expansion itself under original high temperature environment, and deformation, error appear in traditional dipperstick test sample. If the thickness measuring ruler is taken out and manually measured, the thickness measuring ruler is easy to shake, unstable, inconvenient in reading, prone to error, inaccurate in measurement and capable of interfering with experimental results.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the defects of the prior art are overcome, and the thermal load test detection sample thickness gauge which is simple in structure, convenient and accurate in reading is provided to solve the problems.

The utility model discloses a thermal load test sample thickness gauge, including barrel, dipperstick and top cap, the top opening of barrel, be equipped with bar fretwork groove on the barrel lateral wall; the measuring scale consists of a measuring plate and a measuring rod, the measuring plate is matched with the inner diameter of the cylinder, and the measuring plate is connected with one end of the measuring rod; the top cover can be buckled at the opening at the top of the barrel body, and a circular through hole is formed in the top cover.

The barrel is packed into with the sample after experimental completion, then puts into the dipperstick in the barrel, makes the measuring plate of dipperstick naturally drop on the sample, then detains the top cap, and the circular through-hole of top cap is passed at the top of measuring stick, and the top cap plays the support firm effect to the measuring stick, prevents that the dipperstick from taking place the skew, makes the reading more accurate.

Preferably, the top cover is of a hollow structure, so that the material is saved, the weight is reduced, and the appearance is attractive.

Preferably, one side of the strip-shaped hollow groove is provided with scales, so that the reading is more convenient and direct.

Compared with the prior art, the utility model beneficial effect who has is:

experimental sample thickness gauge that detects of hot load, simple structure, reasonable in design, convenient to use is swift, saves the experimentation time, the reading is stable accurate to the accuracy of better assurance test result.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an exploded schematic view of the present invention.

In the figure: 1. a barrel; 2. measuring a plate; 3. a measuring rod; 4. a top cover; 5. a circular through hole; 6. a strip-shaped hollow groove; 7. calibration; 8. and (4) sampling.

Detailed Description

The invention will be further described with reference to the following examples:

as shown in fig. 1-2, experimental sample thickness gauge that detects of hot load, including columniform barrel 1, dipperstick and

top cap

4, 1 open-top of barrel, be equipped with bar fretwork groove 6 on the 1 lateral wall of barrel, bar fretwork groove 6 one side is equipped with scale 7.

In this embodiment, the dipperstick comprises measuring plate 2 and measuring stick 3, and measuring plate 2 is connected with measuring stick 3's one end with 1 internal diameter looks adaptation of barrel, the centre of a circle of measuring plate 2, and measuring plate 2 and measuring stick 3 mutually perpendicular.

In this embodiment, top cap 4 can be detained in 1 top opening part of barrel, is equipped with circular through-hole 5 on top cap 4, and top cap 4 is hollow out construction.

The utility model discloses an application principle:

sample 8 such as rock wool, mineral wool matches with 1 internal diameter of barrel, sample thickness 80mm, accomplish barrel 1 of packing into after experimental, then put into the dipperstick in barrel 1, make the measuring plate 2 of dipperstick drop naturally on sample 8, then detain top cap 4, circular through-hole 5 of top cap 4 is passed at the top of measuring stick 3, top cap 4 plays the firm effect of support to measuring stick 3, prevents that the dipperstick from taking place the incline, makes the reading more accurate. The measurement value was read, and the thickness shrinkage of the sample was calculated according to the following formula. The temperature in the furnace at which the thickness shrinkage of the sample is 10% is determined by interpolation from the calculation of the relationship between the thickness shrinkage of the sample and the temperature, and the arithmetic mean of the two measurements is taken to be accurate to 10 ℃ as the thermal load shrinkage temperature of the sample.

d＝(A-B)/A×100％

d- -sample thickness shrinkage;

a- - - -sample thickness before test, in mm;

b- -thickness of the sample after the test in mm.

Claims

1. The utility model provides a hot load test detects sample calibrator which characterized in that: the measuring device comprises a cylinder body (1), a measuring scale and a top cover (4), wherein the top of the cylinder body (1) is provided with an opening, and the side wall of the cylinder body (1) is provided with a strip-shaped hollow groove (6); the measuring scale consists of a measuring plate (2) and a measuring rod (3), the measuring plate (2) is matched with the inner diameter of the cylinder body (1), and the measuring plate (2) is connected with one end of the measuring rod (3); the top cover (4) can be buckled at the opening at the top of the barrel body (1), and a circular through hole (5) is formed in the top cover (4).

2. The thermal load test detection sample thickness gauge of claim 1, wherein: the top cover (4) is of a hollow structure.

3. The thermal load test detection sample thickness gauge of claim 1, wherein: and scales (7) are arranged on one side of the strip-shaped hollow groove (6).